From 966dc11fcc48866a24d9b3fd16eeebb3f5e05931 Mon Sep 17 00:00:00 2001 From: David Mosberger-Tang Date: Fri, 6 May 2005 05:25:00 -0700 Subject: [IA64] Fix stack placement when INIT hits in kernel mode. Without this patch, the stack is placed _below_ the current task structure, which is risky at best. Tony, I think this patch needs to go into 2.6.12, since it fixes a real bug. Without it, INIT may case secondary errors, which would be most unpleasant. Signed-off-by: David Mosberger-Tang Signed-off-by: Tony Luck --- arch/ia64/kernel/minstate.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/minstate.h b/arch/ia64/kernel/minstate.h index 1dbc7b2497c9..f6d8a010d99b 100644 --- a/arch/ia64/kernel/minstate.h +++ b/arch/ia64/kernel/minstate.h @@ -41,7 +41,7 @@ (pKStk) addl r3=THIS_CPU(ia64_mca_data),r3;; \ (pKStk) ld8 r3 = [r3];; \ (pKStk) addl r3=IA64_MCA_CPU_INIT_STACK_OFFSET,r3;; \ -(pKStk) addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r3; \ +(pKStk) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r3; \ (pUStk) mov ar.rsc=0; /* set enforced lazy mode, pl 0, little-endian, loadrs=0 */ \ (pUStk) addl r22=IA64_RBS_OFFSET,r1; /* compute base of register backing store */ \ ;; \ @@ -50,7 +50,6 @@ (pUStk) mov r23=ar.bspstore; /* save ar.bspstore */ \ (pUStk) dep r22=-1,r22,61,3; /* compute kernel virtual addr of RBS */ \ ;; \ -(pKStk) addl r1=-IA64_PT_REGS_SIZE,r1; /* if in kernel mode, use sp (r12) */ \ (pUStk) mov ar.bspstore=r22; /* switch to kernel RBS */ \ ;; \ (pUStk) mov r18=ar.bsp; \ -- cgit v1.2.3 From ea9c102cb0a7969df5733d34f26e0b12c8a3c889 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 8 May 2005 15:56:09 +0100 Subject: Add CONFIG_AUDITSC and CONFIG_SECCOMP support for ppc32 Signed-off-by: David Woodhouse --- arch/ppc/Kconfig | 17 +++++++++++++++++ arch/ppc/kernel/entry.S | 16 +++++++++------- arch/ppc/kernel/ppc_ksyms.c | 2 -- arch/ppc/kernel/ptrace.c | 40 ++++++++++++++++++++++++++++++++++++---- include/asm-ppc/thread_info.h | 7 +++++++ init/Kconfig | 2 +- 6 files changed, 70 insertions(+), 14 deletions(-) (limited to 'arch') diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index 600f23d7fd33..cd752a3cf3bd 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -1083,6 +1083,23 @@ source "drivers/zorro/Kconfig" source kernel/power/Kconfig +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + depends on PROC_FS + default y + help + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via /proc//seccomp, it cannot be disabled + and the task is only allowed to execute a few safe syscalls + defined by each seccomp mode. + + If unsure, say Y. Only embedded should say N here. + endmenu config ISA_DMA_API diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S index 5f075dbc4ee7..661523707e8c 100644 --- a/arch/ppc/kernel/entry.S +++ b/arch/ppc/kernel/entry.S @@ -202,7 +202,7 @@ _GLOBAL(DoSyscall) rlwinm r11,r11,0,~_TIFL_FORCE_NOERROR stw r11,TI_LOCAL_FLAGS(r10) lwz r11,TI_FLAGS(r10) - andi. r11,r11,_TIF_SYSCALL_TRACE + andi. r11,r11,_TIF_SYSCALL_T_OR_A bne- syscall_dotrace syscall_dotrace_cont: cmplwi 0,r0,NR_syscalls @@ -237,7 +237,7 @@ ret_from_syscall: SYNC MTMSRD(r10) lwz r9,TI_FLAGS(r12) - andi. r0,r9,(_TIF_SYSCALL_TRACE|_TIF_SIGPENDING|_TIF_NEED_RESCHED) + andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED) bne- syscall_exit_work syscall_exit_cont: #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) @@ -277,7 +277,8 @@ syscall_dotrace: SAVE_NVGPRS(r1) li r0,0xc00 stw r0,TRAP(r1) - bl do_syscall_trace + addi r3,r1,STACK_FRAME_OVERHEAD + bl do_syscall_trace_enter lwz r0,GPR0(r1) /* Restore original registers */ lwz r3,GPR3(r1) lwz r4,GPR4(r1) @@ -291,7 +292,7 @@ syscall_dotrace: syscall_exit_work: stw r6,RESULT(r1) /* Save result */ stw r3,GPR3(r1) /* Update return value */ - andi. r0,r9,_TIF_SYSCALL_TRACE + andi. r0,r9,_TIF_SYSCALL_T_OR_A beq 5f ori r10,r10,MSR_EE SYNC @@ -303,7 +304,8 @@ syscall_exit_work: li r4,0xc00 stw r4,TRAP(r1) 4: - bl do_syscall_trace + addi r3,r1,STACK_FRAME_OVERHEAD + bl do_syscall_trace_leave REST_NVGPRS(r1) 2: lwz r3,GPR3(r1) @@ -627,8 +629,8 @@ sigreturn_exit: subi r1,r3,STACK_FRAME_OVERHEAD rlwinm r12,r1,0,0,18 /* current_thread_info() */ lwz r9,TI_FLAGS(r12) - andi. r0,r9,_TIF_SYSCALL_TRACE - bnel- do_syscall_trace + andi. r0,r9,_TIF_SYSCALL_T_OR_A + bnel- do_syscall_trace_leave /* fall through */ .globl ret_from_except_full diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c index 2ccb58fe4fc3..d59ad07de8e7 100644 --- a/arch/ppc/kernel/ppc_ksyms.c +++ b/arch/ppc/kernel/ppc_ksyms.c @@ -55,7 +55,6 @@ #define EXPORT_SYMTAB_STROPS extern void transfer_to_handler(void); -extern void do_syscall_trace(void); extern void do_IRQ(struct pt_regs *regs); extern void MachineCheckException(struct pt_regs *regs); extern void AlignmentException(struct pt_regs *regs); @@ -74,7 +73,6 @@ extern unsigned long mm_ptov (unsigned long paddr); EXPORT_SYMBOL(clear_pages); EXPORT_SYMBOL(clear_user_page); EXPORT_SYMBOL(do_signal); -EXPORT_SYMBOL(do_syscall_trace); EXPORT_SYMBOL(transfer_to_handler); EXPORT_SYMBOL(do_IRQ); EXPORT_SYMBOL(MachineCheckException); diff --git a/arch/ppc/kernel/ptrace.c b/arch/ppc/kernel/ptrace.c index 59d59a8dc249..e7aee4108dea 100644 --- a/arch/ppc/kernel/ptrace.c +++ b/arch/ppc/kernel/ptrace.c @@ -27,6 +27,9 @@ #include #include #include +#include +#include +#include #include #include @@ -455,11 +458,10 @@ out: return ret; } -void do_syscall_trace(void) +static void do_syscall_trace(void) { - if (!test_thread_flag(TIF_SYSCALL_TRACE) - || !(current->ptrace & PT_PTRACED)) - return; + /* the 0x80 provides a way for the tracing parent to distinguish + between a syscall stop and SIGTRAP delivery */ ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0)); @@ -473,3 +475,33 @@ void do_syscall_trace(void) current->exit_code = 0; } } + +void do_syscall_trace_enter(struct pt_regs *regs) +{ + if (test_thread_flag(TIF_SYSCALL_TRACE) + && (current->ptrace & PT_PTRACED)) + do_syscall_trace(); + + if (unlikely(current->audit_context)) + audit_syscall_entry(current, AUDIT_ARCH_PPC, + regs->gpr[0], + regs->gpr[3], regs->gpr[4], + regs->gpr[5], regs->gpr[6]); +} + +void do_syscall_trace_leave(struct pt_regs *regs) +{ + secure_computing(regs->gpr[0]); + + if (unlikely(current->audit_context)) + audit_syscall_exit(current, + (regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS, + regs->result); + + if ((test_thread_flag(TIF_SYSCALL_TRACE)) + && (current->ptrace & PT_PTRACED)) + do_syscall_trace(); +} + +EXPORT_SYMBOL(do_syscall_trace_enter); +EXPORT_SYMBOL(do_syscall_trace_leave); diff --git a/include/asm-ppc/thread_info.h b/include/asm-ppc/thread_info.h index f7f01524e8a8..e3b5284a6f91 100644 --- a/include/asm-ppc/thread_info.h +++ b/include/asm-ppc/thread_info.h @@ -77,12 +77,19 @@ static inline struct thread_info *current_thread_info(void) #define TIF_POLLING_NRFLAG 4 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 5 +#define TIF_SYSCALL_AUDIT 6 /* syscall auditing active */ +#define TIF_SECCOMP 7 /* secure computing */ + /* as above, but as bit values */ #define _TIF_SYSCALL_TRACE (1< Date: Tue, 12 Apr 2005 11:04:00 -0700 Subject: [IA64] fix "section mismatch" compile-time-error I noticed this typo when trying to compile a kernel which had CONFIG_HOTPLUG turned off. In that case, __devinit is no longer a no-op and the compiler then detects a section-conflict. Fix by using __devinitdata instead of __devinit. Same patch also submitted by Darren Williams to fix compilation error using sim_defconfig (which has CONFIG_HOTPLUG=n). Signed-off-by: David Mosberger-Tang Signed-off-by: Darren Williams Signed-off-by: Tony Luck --- arch/ia64/kernel/smpboot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 0d5ee57c9865..3865f088ffa2 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -624,7 +624,7 @@ static struct { __u16 thread_id; __u16 proc_fixed_addr; __u8 valid; -}mt_info[NR_CPUS] __devinit; +} mt_info[NR_CPUS] __devinitdata; #ifdef CONFIG_HOTPLUG_CPU static inline void -- cgit v1.2.3 From bfd68594082d8384781c242aa72a7950b5cf51aa Mon Sep 17 00:00:00 2001 From: David Mosberger-Tang Date: Wed, 4 May 2005 06:42:00 -0700 Subject: [IA64] Avoid .spillpsp directive in handcoded assembly Some time ago, GAS was fixed to bring the .spillpsp directive in line with the Intel assembler manual (there was some disagreement as to whether or not there is a built-in 16-byte offset). Unfortunately, there are two places in the kernel where this directive is used in handwritten assembly files and those of course relied on the "buggy" behavior. As a result, when using a "fixed" assembler, the kernel picks up the UNaT bits from the wrong place (off by 16) and randomly sets NaT bits on the scratch registers. This can be noticed easily by looking at a coredump and finding various scratch registers with unexpected NaT values. The patch below fixes this by using the .spillsp directive instead, which works correctly no matter what assembler is in use. Signed-off-by: David Mosberger-Tang Signed-off-by: Tony Luck --- arch/ia64/kernel/entry.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index 81c45d447394..d99316c9be28 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1182,7 +1182,7 @@ ENTRY(notify_resume_user) ;; (pNonSys) mov out2=0 // out2==0 => not a syscall .fframe 16 - .spillpsp ar.unat, 16 // (note that offset is relative to psp+0x10!) + .spillsp ar.unat, 16 st8 [sp]=r9,-16 // allocate space for ar.unat and save it st8 [out1]=loc1,-8 // save ar.pfs, out1=&sigscratch .body @@ -1208,7 +1208,7 @@ GLOBAL_ENTRY(sys_rt_sigsuspend) adds out2=8,sp // out2=&sigscratch->ar_pfs ;; .fframe 16 - .spillpsp ar.unat, 16 // (note that offset is relative to psp+0x10!) + .spillsp ar.unat, 16 st8 [sp]=r9,-16 // allocate space for ar.unat and save it st8 [out2]=loc1,-8 // save ar.pfs, out2=&sigscratch .body -- cgit v1.2.3 From 02a017a9f37ae6842e065da919b5952eb847e869 Mon Sep 17 00:00:00 2001 From: David Mosberger-Tang Date: Tue, 10 May 2005 11:35:00 -0700 Subject: [IA64] Correct convert_to_non_syscall() convert_to_non_syscall() has the same problem that unwind_to_user() used to have. Fix it likewise. Signed-off-by: David Mosberger-Tang Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 907464ee7273..08c8a5eb25ab 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -692,16 +692,30 @@ convert_to_non_syscall (struct task_struct *child, struct pt_regs *pt, unsigned long cfm) { struct unw_frame_info info, prev_info; - unsigned long ip, pr; + unsigned long ip, sp, pr; unw_init_from_blocked_task(&info, child); while (1) { prev_info = info; if (unw_unwind(&info) < 0) return; - if (unw_get_rp(&info, &ip) < 0) + + unw_get_sp(&info, &sp); + if ((long)((unsigned long)child + IA64_STK_OFFSET - sp) + < IA64_PT_REGS_SIZE) { + dprintk("ptrace.%s: ran off the top of the kernel " + "stack\n", __FUNCTION__); + return; + } + if (unw_get_pr (&prev_info, &pr) < 0) { + unw_get_rp(&prev_info, &ip); + dprintk("ptrace.%s: failed to read " + "predicate register (ip=0x%lx)\n", + __FUNCTION__, ip); return; - if (ip < FIXADDR_USER_END) + } + if (unw_is_intr_frame(&info) + && (pr & (1UL << PRED_USER_STACK))) break; } -- cgit v1.2.3 From bb68c12b40c3c745381d7ce61d7b2e371f157505 Mon Sep 17 00:00:00 2001 From: Russ Anderson <(rja@sgi.com)> Date: Mon, 9 May 2005 15:03:00 -0700 Subject: [IA64-SGI] cpe interrupts are not being enabled. acpi_request_vector() is called in ia64_mca_init() to get the cpe_vector. The problem is that acpi_request_vector() looks in platform_intr_list[] to get the vector, but platform_intr_list[] is not initialized with a valid vector until later (in sn_setup()). Without a valid vector the code defaults to polling mode. This patch moves the call to acpi_request_vector() from ia64_mca_init() to ia64_mca_late_init(), which is after platform_intr_list[] is initialized. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck --- arch/ia64/kernel/mca.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 4d6c7b8f667b..2c75741dcc66 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1390,8 +1390,7 @@ ia64_mca_init(void) register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, &mca_wkup_irqaction); #ifdef CONFIG_ACPI - /* Setup the CPEI/P vector and handler */ - cpe_vector = acpi_request_vector(ACPI_INTERRUPT_CPEI); + /* Setup the CPEI/P handler */ register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction); #endif @@ -1436,6 +1435,7 @@ ia64_mca_late_init(void) #ifdef CONFIG_ACPI /* Setup the CPEI/P vector and handler */ + cpe_vector = acpi_request_vector(ACPI_INTERRUPT_CPEI); init_timer(&cpe_poll_timer); cpe_poll_timer.function = ia64_mca_cpe_poll; -- cgit v1.2.3 From 6872ec548970e9fb3ccd61013f84f9bb8b30fa9a Mon Sep 17 00:00:00 2001 From: Russ Anderson <(rja@sgi.com)> Date: Mon, 16 May 2005 15:30:00 -0700 Subject: [IS64-SGI] Set Altix error handling features The 2.6 kernel has CPE error thresholding. This patch lets SAL know of this error handling feature. The changes are SN specific. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/setup.c | 2 ++ include/asm-ia64/sn/sn_sal.h | 26 ++++++++++++++++++++++++++ 2 files changed, 28 insertions(+) (limited to 'arch') diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index 4fb44984afe6..e64cb8175f7a 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -271,6 +271,8 @@ void __init sn_setup(char **cmdline_p) int major = sn_sal_rev_major(), minor = sn_sal_rev_minor(); extern void sn_cpu_init(void); + ia64_sn_plat_set_error_handling_features(); + /* * If the generic code has enabled vga console support - lets * get rid of it again. This is a kludge for the fact that ACPI diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index 94cc5392533a..eb0395ad0d6a 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -115,6 +115,13 @@ #define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT #define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV +/* + * Error Handling Features + */ +#define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 +#define SAL_ERR_FEAT_LOG_SBES 0x2 +#define SAL_ERR_FEAT_MFR_OVERRIDE 0x4 +#define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000 /* * SAL Error Codes @@ -341,6 +348,25 @@ ia64_sn_plat_cpei_handler(void) return ret_stuff.status; } +/* + * Set Error Handling Features + */ +static inline u64 +ia64_sn_plat_set_error_handling_features(void) +{ + struct ia64_sal_retval ret_stuff; + + ret_stuff.status = 0; + ret_stuff.v0 = 0; + ret_stuff.v1 = 0; + ret_stuff.v2 = 0; + SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES, + (SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES), + 0, 0, 0, 0, 0, 0); + + return ret_stuff.status; +} + /* * Checks for console input. */ -- cgit v1.2.3 From a1ecf7f6e65637ba4470405ad39794710dbf85d4 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Wed, 18 May 2005 16:06:00 -0700 Subject: [IA64] alternate perfmon handler Patch from Charles Spirakis Some linux customers want to optimize their applications on the latest hardware but are not yet willing to upgrade to the latest kernel. This patch provides a way to plug in an alternate, basic, and GPL'ed PMU subsystem to help with their monitoring needs or for specialty work. It can also be used in case of serious unexpected bugs in perfmon. Mutual exclusion between the two subsystems is guaranteed, hence no conflict can arise from both subsystem being present. Acked-by: Stephane Eranian Signed-off-by: Tony Luck --- arch/ia64/kernel/perfmon.c | 175 +++++++++++++++++++++++++++++++++++++++++---- include/asm-ia64/perfmon.h | 8 +++ 2 files changed, 168 insertions(+), 15 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 71c101601e3e..ab9682f8b044 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -11,7 +11,7 @@ * Version Perfmon-2.x is a rewrite of perfmon-1.x * by Stephane Eranian, Hewlett Packard Co. * - * Copyright (C) 1999-2003, 2005 Hewlett Packard Co + * Copyright (C) 1999-2005 Hewlett Packard Co * Stephane Eranian * David Mosberger-Tang * @@ -497,6 +497,9 @@ typedef struct { static pfm_stats_t pfm_stats[NR_CPUS]; static pfm_session_t pfm_sessions; /* global sessions information */ +static spinlock_t pfm_alt_install_check; +static pfm_intr_handler_desc_t *pfm_alt_intr_handler; + static struct proc_dir_entry *perfmon_dir; static pfm_uuid_t pfm_null_uuid = {0,}; @@ -606,6 +609,7 @@ DEFINE_PER_CPU(unsigned long, pfm_syst_info); DEFINE_PER_CPU(struct task_struct *, pmu_owner); DEFINE_PER_CPU(pfm_context_t *, pmu_ctx); DEFINE_PER_CPU(unsigned long, pmu_activation_number); +EXPORT_SYMBOL_GPL(per_cpu__pfm_syst_info); /* forward declaration */ @@ -1325,7 +1329,7 @@ pfm_reserve_session(struct task_struct *task, int is_syswide, unsigned int cpu) error_conflict: DPRINT(("system wide not possible, conflicting session [%d] on CPU%d\n", pfm_sessions.pfs_sys_session[cpu]->pid, - smp_processor_id())); + cpu)); abort: UNLOCK_PFS(flags); @@ -5555,26 +5559,32 @@ pfm_interrupt_handler(int irq, void *arg, struct pt_regs *regs) int ret; this_cpu = get_cpu(); - min = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min; - max = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max; + if (likely(!pfm_alt_intr_handler)) { + min = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min; + max = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max; - start_cycles = ia64_get_itc(); + start_cycles = ia64_get_itc(); - ret = pfm_do_interrupt_handler(irq, arg, regs); + ret = pfm_do_interrupt_handler(irq, arg, regs); - total_cycles = ia64_get_itc(); + total_cycles = ia64_get_itc(); - /* - * don't measure spurious interrupts - */ - if (likely(ret == 0)) { - total_cycles -= start_cycles; + /* + * don't measure spurious interrupts + */ + if (likely(ret == 0)) { + total_cycles -= start_cycles; - if (total_cycles < min) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min = total_cycles; - if (total_cycles > max) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max = total_cycles; + if (total_cycles < min) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min = total_cycles; + if (total_cycles > max) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max = total_cycles; - pfm_stats[this_cpu].pfm_ovfl_intr_cycles += total_cycles; + pfm_stats[this_cpu].pfm_ovfl_intr_cycles += total_cycles; + } + } + else { + (*pfm_alt_intr_handler->handler)(irq, arg, regs); } + put_cpu_no_resched(); return IRQ_HANDLED; } @@ -6425,6 +6435,141 @@ static struct irqaction perfmon_irqaction = { .name = "perfmon" }; +static void +pfm_alt_save_pmu_state(void *data) +{ + struct pt_regs *regs; + + regs = ia64_task_regs(current); + + DPRINT(("called\n")); + + /* + * should not be necessary but + * let's take not risk + */ + pfm_clear_psr_up(); + pfm_clear_psr_pp(); + ia64_psr(regs)->pp = 0; + + /* + * This call is required + * May cause a spurious interrupt on some processors + */ + pfm_freeze_pmu(); + + ia64_srlz_d(); +} + +void +pfm_alt_restore_pmu_state(void *data) +{ + struct pt_regs *regs; + + regs = ia64_task_regs(current); + + DPRINT(("called\n")); + + /* + * put PMU back in state expected + * by perfmon + */ + pfm_clear_psr_up(); + pfm_clear_psr_pp(); + ia64_psr(regs)->pp = 0; + + /* + * perfmon runs with PMU unfrozen at all times + */ + pfm_unfreeze_pmu(); + + ia64_srlz_d(); +} + +int +pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *hdl) +{ + int ret, i; + int reserve_cpu; + + /* some sanity checks */ + if (hdl == NULL || hdl->handler == NULL) return -EINVAL; + + /* do the easy test first */ + if (pfm_alt_intr_handler) return -EBUSY; + + /* one at a time in the install or remove, just fail the others */ + if (!spin_trylock(&pfm_alt_install_check)) { + return -EBUSY; + } + + /* reserve our session */ + for_each_online_cpu(reserve_cpu) { + ret = pfm_reserve_session(NULL, 1, reserve_cpu); + if (ret) goto cleanup_reserve; + } + + /* save the current system wide pmu states */ + ret = on_each_cpu(pfm_alt_save_pmu_state, NULL, 0, 1); + if (ret) { + DPRINT(("on_each_cpu() failed: %d\n", ret)); + goto cleanup_reserve; + } + + /* officially change to the alternate interrupt handler */ + pfm_alt_intr_handler = hdl; + + spin_unlock(&pfm_alt_install_check); + + return 0; + +cleanup_reserve: + for_each_online_cpu(i) { + /* don't unreserve more than we reserved */ + if (i >= reserve_cpu) break; + + pfm_unreserve_session(NULL, 1, i); + } + + spin_unlock(&pfm_alt_install_check); + + return ret; +} +EXPORT_SYMBOL_GPL(pfm_install_alt_pmu_interrupt); + +int +pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *hdl) +{ + int i; + int ret; + + if (hdl == NULL) return -EINVAL; + + /* cannot remove someone else's handler! */ + if (pfm_alt_intr_handler != hdl) return -EINVAL; + + /* one at a time in the install or remove, just fail the others */ + if (!spin_trylock(&pfm_alt_install_check)) { + return -EBUSY; + } + + pfm_alt_intr_handler = NULL; + + ret = on_each_cpu(pfm_alt_restore_pmu_state, NULL, 0, 1); + if (ret) { + DPRINT(("on_each_cpu() failed: %d\n", ret)); + } + + for_each_online_cpu(i) { + pfm_unreserve_session(NULL, 1, i); + } + + spin_unlock(&pfm_alt_install_check); + + return 0; +} +EXPORT_SYMBOL_GPL(pfm_remove_alt_pmu_interrupt); + /* * perfmon initialization routine, called from the initcall() table */ diff --git a/include/asm-ia64/perfmon.h b/include/asm-ia64/perfmon.h index ed5416c5b1ac..7f3333dd00e4 100644 --- a/include/asm-ia64/perfmon.h +++ b/include/asm-ia64/perfmon.h @@ -177,6 +177,10 @@ typedef union { extern long perfmonctl(int fd, int cmd, void *arg, int narg); +typedef struct { + void (*handler)(int irq, void *arg, struct pt_regs *regs); +} pfm_intr_handler_desc_t; + extern void pfm_save_regs (struct task_struct *); extern void pfm_load_regs (struct task_struct *); @@ -187,6 +191,10 @@ extern void pfm_syst_wide_update_task(struct task_struct *, unsigned long info, extern void pfm_inherit(struct task_struct *task, struct pt_regs *regs); extern void pfm_init_percpu(void); extern void pfm_handle_work(void); +extern int pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *h); +extern int pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *h); + + /* * Reset PMD register flags -- cgit v1.2.3 From fe12e25ebdd195a57d3fd655061fd2525609b16b Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Wed, 18 May 2005 17:09:06 -0700 Subject: [IA64] initialize spinlock pfm_alt_install_check I applied the penultimate version of the perfmon patch, which didn't have the initialization of the new spinlock that was added. Signed-off-by: Tony Luck --- arch/ia64/kernel/perfmon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index ab9682f8b044..0e58ec7db128 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -497,7 +497,7 @@ typedef struct { static pfm_stats_t pfm_stats[NR_CPUS]; static pfm_session_t pfm_sessions; /* global sessions information */ -static spinlock_t pfm_alt_install_check; +static spinlock_t pfm_alt_install_check = SPIN_LOCK_UNLOCKED; static pfm_intr_handler_desc_t *pfm_alt_intr_handler; static struct proc_dir_entry *perfmon_dir; -- cgit v1.2.3 From 187a51ad11351b009abab688fb7f6d6f3210a45f Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 21 May 2005 18:14:44 +0100 Subject: [PATCH] ARM SMP: consolidate main IRQ handler code Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) (limited to 'arch') diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 4eb36155dc93..b0efbf98d832 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -23,6 +23,19 @@ #include "entry-header.S" +/* + * Interrupt handling. Preserves r7, r8, r9 + */ + .macro irq_handler +1: get_irqnr_and_base r0, r6, r5, lr + movne r1, sp + @ + @ routine called with r0 = irq number, r1 = struct pt_regs * + @ + adrne lr, 1b + bne asm_do_IRQ + .endm + /* * Invalid mode handlers */ @@ -136,13 +149,7 @@ __irq_svc: add r7, r9, #1 @ increment it str r7, [r8, #TI_PREEMPT] #endif -1: get_irqnr_and_base r0, r6, r5, lr - movne r1, sp - @ - @ routine called with r0 = irq number, r1 = struct pt_regs * - @ - adrne lr, 1b - bne asm_do_IRQ + irq_handler #ifdef CONFIG_PREEMPT ldr r0, [r8, #TI_FLAGS] @ get flags tst r0, #_TIF_NEED_RESCHED @@ -337,13 +344,7 @@ __irq_usr: add r7, r9, #1 @ increment it str r7, [r8, #TI_PREEMPT] #endif -1: get_irqnr_and_base r0, r6, r5, lr - movne r1, sp - adrne lr, 1b - @ - @ routine called with r0 = irq number, r1 = struct pt_regs * - @ - bne asm_do_IRQ + irq_handler #ifdef CONFIG_PREEMPT ldr r0, [r8, #TI_PREEMPT] teq r0, r7 -- cgit v1.2.3 From 706fdd9faaad5bd52c774190a54c0fd1dfc0f418 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 21 May 2005 18:15:45 +0100 Subject: [PATCH] ARM SMP: reallocate main IRQ handler code registers By changing r9 -> r8 and r8 to 'tsk' (r9) we are able to remove one instruction from the preempt path. Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 35 ++++++++++++++++------------------- 1 file changed, 16 insertions(+), 19 deletions(-) (limited to 'arch') diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index b0efbf98d832..8ff82bc75eb1 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -144,20 +144,20 @@ __dabt_svc: __irq_svc: svc_entry irq #ifdef CONFIG_PREEMPT - get_thread_info r8 - ldr r9, [r8, #TI_PREEMPT] @ get preempt count - add r7, r9, #1 @ increment it - str r7, [r8, #TI_PREEMPT] + get_thread_info tsk + ldr r8, [tsk, #TI_PREEMPT] @ get preempt count + add r7, r8, #1 @ increment it + str r7, [tsk, #TI_PREEMPT] #endif irq_handler #ifdef CONFIG_PREEMPT - ldr r0, [r8, #TI_FLAGS] @ get flags + ldr r0, [tsk, #TI_FLAGS] @ get flags tst r0, #_TIF_NEED_RESCHED blne svc_preempt preempt_return: - ldr r0, [r8, #TI_PREEMPT] @ read preempt value + ldr r0, [tsk, #TI_PREEMPT] @ read preempt value + str r8, [tsk, #TI_PREEMPT] @ restore preempt count teq r0, r7 - str r9, [r8, #TI_PREEMPT] @ restore preempt count strne r0, [r0, -r0] @ bug() #endif ldr r0, [sp, #S_PSR] @ irqs are already disabled @@ -168,7 +168,7 @@ preempt_return: #ifdef CONFIG_PREEMPT svc_preempt: - teq r9, #0 @ was preempt count = 0 + teq r8, #0 @ was preempt count = 0 ldreq r6, .LCirq_stat movne pc, lr @ no ldr r0, [r6, #4] @ local_irq_count @@ -176,9 +176,9 @@ svc_preempt: adds r0, r0, r1 movne pc, lr mov r7, #0 @ preempt_schedule_irq - str r7, [r8, #TI_PREEMPT] @ expects preempt_count == 0 + str r7, [tsk, #TI_PREEMPT] @ expects preempt_count == 0 1: bl preempt_schedule_irq @ irq en/disable is done inside - ldr r0, [r8, #TI_FLAGS] @ get new tasks TI_FLAGS + ldr r0, [tsk, #TI_FLAGS] @ get new tasks TI_FLAGS tst r0, #_TIF_NEED_RESCHED beq preempt_return @ go again b 1b @@ -338,21 +338,18 @@ __dabt_usr: __irq_usr: usr_entry irq + get_thread_info tsk #ifdef CONFIG_PREEMPT - get_thread_info r8 - ldr r9, [r8, #TI_PREEMPT] @ get preempt count - add r7, r9, #1 @ increment it - str r7, [r8, #TI_PREEMPT] + ldr r8, [tsk, #TI_PREEMPT] @ get preempt count + add r7, r8, #1 @ increment it + str r7, [tsk, #TI_PREEMPT] #endif irq_handler #ifdef CONFIG_PREEMPT - ldr r0, [r8, #TI_PREEMPT] + ldr r0, [tsk, #TI_PREEMPT] + str r8, [tsk, #TI_PREEMPT] teq r0, r7 - str r9, [r8, #TI_PREEMPT] strne r0, [r0, -r0] - mov tsk, r8 -#else - get_thread_info tsk #endif mov why, #0 b ret_to_user -- cgit v1.2.3 From 791be9b976ba621b21745c30a7fca225fada9110 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 21 May 2005 18:16:44 +0100 Subject: [PATCH] ARM SMP: add IPI support Add support for inter-processor interrupts to the main IRQ handling code. Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'arch') diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 8ff82bc75eb1..a99e686c0b83 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -34,6 +34,20 @@ @ adrne lr, 1b bne asm_do_IRQ + +#ifdef CONFIG_SMP + /* + * XXX + * + * this macro assumes that irqstat (r6) and base (r5) are + * preserved from get_irqnr_and_base above + */ + test_for_ipi r0, r6, r5, lr + movne r0, sp + adrne lr, 1b + bne do_IPI +#endif + .endm /* -- cgit v1.2.3 From d11cf326bd5e785cc5a3f5a3d3f4e3a5522f4fb7 Mon Sep 17 00:00:00 2001 From: Zhang Yanmin Date: Sun, 22 May 2005 17:47:00 -0700 Subject: [IA64] sys_mmap doesn't follow posix.1 when parameter len=0 In IA64 kernel, sys_mmap calls do_mmap2 and do_mmap2 returns addr if len=0, which means the mmap sys call succeeds. Posix.1 says: The mmap() function shall fail if: [EINVAL] The value of len is zero. Here is a patch to fix it. Signed-off-by: Zhang Yanmin Acked-by: David Mosberger Signed-off-by: Tony Luck --- arch/ia64/kernel/sys_ia64.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index a8cf6d8a509c..770fab37928e 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c @@ -182,13 +182,6 @@ do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, un } } - /* - * A zero mmap always succeeds in Linux, independent of whether or not the - * remaining arguments are valid. - */ - if (len == 0) - goto out; - /* Careful about overflows.. */ len = PAGE_ALIGN(len); if (!len || len > TASK_SIZE) { -- cgit v1.2.3 From c5924b7d97430657fa07ebf1a208c7e8cf135ef3 Mon Sep 17 00:00:00 2001 From: Oliver Korpilla Date: Fri, 27 May 2005 12:52:55 -0700 Subject: [PATCH] x86_64: signal.c build fix For unspecified reasons, arch/x86_64/kernel/signal.c apparently needs ia32_unistd.h. Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/signal.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c index 3fdcdba0fec5..429c0269dc4e 100644 --- a/arch/x86_64/kernel/signal.c +++ b/arch/x86_64/kernel/signal.c @@ -28,6 +28,7 @@ #include #include #include +#include /* #define DEBUG_SIG 1 */ -- cgit v1.2.3 From d6649bc76a57523209a6b2ee4844c9078a4dd8bb Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 27 May 2005 12:52:56 -0700 Subject: [PATCH] ppc32: small cpufreq update This patch adds a missing attribute to pmac cpufreq so that "scaling_available_frequencies" works. It also cleans up the duplicate definitions for low and high speed constants. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: John Clemens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/pmac_cpufreq.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) (limited to 'arch') diff --git a/arch/ppc/platforms/pmac_cpufreq.c b/arch/ppc/platforms/pmac_cpufreq.c index f7fb2786cd50..48e482c8bd0d 100644 --- a/arch/ppc/platforms/pmac_cpufreq.c +++ b/arch/ppc/platforms/pmac_cpufreq.c @@ -85,14 +85,11 @@ static int no_schedule; static int has_cpu_l2lve; -#define PMAC_CPU_LOW_SPEED 1 -#define PMAC_CPU_HIGH_SPEED 0 - /* There are only two frequency states for each processor. Values * are in kHz for the time being. */ -#define CPUFREQ_HIGH PMAC_CPU_HIGH_SPEED -#define CPUFREQ_LOW PMAC_CPU_LOW_SPEED +#define CPUFREQ_HIGH 0 +#define CPUFREQ_LOW 1 static struct cpufreq_frequency_table pmac_cpu_freqs[] = { {CPUFREQ_HIGH, 0}, @@ -100,6 +97,11 @@ static struct cpufreq_frequency_table pmac_cpu_freqs[] = { {0, CPUFREQ_TABLE_END}, }; +static struct freq_attr* pmac_cpu_freqs_attr[] = { + &cpufreq_freq_attr_scaling_available_freqs, + NULL, +}; + static inline void local_delay(unsigned long ms) { if (no_schedule) @@ -355,7 +357,7 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify) static unsigned long prev_l3cr; freqs.old = cur_freq; - freqs.new = (speed_mode == PMAC_CPU_HIGH_SPEED) ? hi_freq : low_freq; + freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; freqs.cpu = smp_processor_id(); if (freqs.old == freqs.new) @@ -363,7 +365,7 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify) if (notify) cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - if (speed_mode == PMAC_CPU_LOW_SPEED && + if (speed_mode == CPUFREQ_LOW && cpu_has_feature(CPU_FTR_L3CR)) { l3cr = _get_L3CR(); if (l3cr & L3CR_L3E) { @@ -371,8 +373,8 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify) _set_L3CR(0); } } - set_speed_proc(speed_mode == PMAC_CPU_LOW_SPEED); - if (speed_mode == PMAC_CPU_HIGH_SPEED && + set_speed_proc(speed_mode == CPUFREQ_LOW); + if (speed_mode == CPUFREQ_HIGH && cpu_has_feature(CPU_FTR_L3CR)) { l3cr = _get_L3CR(); if ((prev_l3cr & L3CR_L3E) && l3cr != prev_l3cr) @@ -380,7 +382,7 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify) } if (notify) cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - cur_freq = (speed_mode == PMAC_CPU_HIGH_SPEED) ? hi_freq : low_freq; + cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; return 0; } @@ -423,7 +425,8 @@ static int __pmac pmac_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; policy->cur = cur_freq; - return cpufreq_frequency_table_cpuinfo(policy, &pmac_cpu_freqs[0]); + cpufreq_frequency_table_get_attr(pmac_cpu_freqs, policy->cpu); + return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs); } static u32 __pmac read_gpio(struct device_node *np) @@ -457,7 +460,7 @@ static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, u32 state) no_schedule = 1; sleep_freq = cur_freq; if (cur_freq == low_freq) - do_set_cpu_speed(PMAC_CPU_HIGH_SPEED, 0); + do_set_cpu_speed(CPUFREQ_HIGH, 0); return 0; } @@ -473,8 +476,8 @@ static int __pmac pmac_cpufreq_resume(struct cpufreq_policy *policy) * is that we force a switch to whatever it was, which is * probably high speed due to our suspend() routine */ - do_set_cpu_speed(sleep_freq == low_freq ? PMAC_CPU_LOW_SPEED - : PMAC_CPU_HIGH_SPEED, 0); + do_set_cpu_speed(sleep_freq == low_freq ? + CPUFREQ_LOW : CPUFREQ_HIGH, 0); no_schedule = 0; return 0; @@ -488,6 +491,7 @@ static struct cpufreq_driver pmac_cpufreq_driver = { .suspend = pmac_cpufreq_suspend, .resume = pmac_cpufreq_resume, .flags = CPUFREQ_PM_NO_WARN, + .attr = pmac_cpu_freqs_attr, .name = "powermac", .owner = THIS_MODULE, }; -- cgit v1.2.3 From 70ffc71c5c42c8ac62d951e80d9799bd5764f2f5 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Fri, 27 May 2005 12:52:59 -0700 Subject: [PATCH] arch/i386/kernel/cpu/intel_cacheinfo.c: section fix num_cache_leaves is used in __devexit cache_remove_dev() and can therefore not be __devinit. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/cpu/intel_cacheinfo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c index aeb5b4ef8c8b..a710dc4eb20e 100644 --- a/arch/i386/kernel/cpu/intel_cacheinfo.c +++ b/arch/i386/kernel/cpu/intel_cacheinfo.c @@ -118,7 +118,7 @@ struct _cpuid4_info { }; #define MAX_CACHE_LEAVES 4 -static unsigned short __devinitdata num_cache_leaves; +static unsigned short num_cache_leaves; static int __devinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf) { -- cgit v1.2.3 From 49f384b82b03416dd7e4fc77847a959fe3247362 Mon Sep 17 00:00:00 2001 From: "Siddha, Suresh B" Date: Fri, 27 May 2005 12:53:01 -0700 Subject: [PATCH] x86: fix smp_num_siblings on buggy BIOSes This fixes 'smp_num_siblings' value on the systems with a buggy bios, which sets number of siblings to '2' even when HT is disabled. (more details are at http://bugzilla.kernel.org/show_bug.cgi?id=4359) I am planning to do more cleanup in this area (like moving smp_num_siblings to per cpuinfo) shortly. Signed-off-by: Suresh Siddha Signed-off-by: Venkatesh Pallipadi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/smpboot.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 35bfe138cb1a..bc1bb6919e6a 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -1074,8 +1074,10 @@ static void __init smp_boot_cpus(unsigned int max_cpus) cpu_set(cpu, cpu_sibling_map[cpu]); } - if (siblings != smp_num_siblings) + if (siblings != smp_num_siblings) { printk(KERN_WARNING "WARNING: %d siblings found for CPU%d, should be %d\n", siblings, cpu, smp_num_siblings); + smp_num_siblings = siblings; + } if (c->x86_num_cores > 1) { for (i = 0; i < NR_CPUS; i++) { -- cgit v1.2.3 From b16eeb47292597a8bf3ad53fdaf1f727f57bd8e4 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 27 May 2005 12:53:02 -0700 Subject: [PATCH] ppc32: Fix cpufreq vs. sleep issue Recent kernels occasionally trigger a PMU timeout on some mac laptops, typically on wakeup from sleep. This seem to be caused by either a too big latency caused by the cpufreq switch on wakeup from sleep or by an interrupt beeing lost due to the reset of the interrupt controller done during wakeup. This patch makes that code more robust by stopping PMU auto poll activity around cpufreq changes on machines that use the PMU for such changes (long latency switching involving a CPU hard reset and flush of all caches) and by removing the reset of the open pic interrupt controller on wakeup (that can cause the loss of an interrupt and Darwin doesn't do it, so it must not be necessary). Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/pmac_cpufreq.c | 4 ++++ arch/ppc/syslib/open_pic.c | 4 +--- drivers/macintosh/via-pmu.c | 8 ++++---- 3 files changed, 9 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/ppc/platforms/pmac_cpufreq.c b/arch/ppc/platforms/pmac_cpufreq.c index 48e482c8bd0d..937f46df711e 100644 --- a/arch/ppc/platforms/pmac_cpufreq.c +++ b/arch/ppc/platforms/pmac_cpufreq.c @@ -271,6 +271,8 @@ static int __pmac pmu_set_cpu_speed(int low_speed) #ifdef DEBUG_FREQ printk(KERN_DEBUG "HID1, before: %x\n", mfspr(SPRN_HID1)); #endif + pmu_suspend(); + /* Disable all interrupt sources on openpic */ pic_prio = openpic_get_priority(); openpic_set_priority(0xf); @@ -345,6 +347,8 @@ static int __pmac pmu_set_cpu_speed(int low_speed) debug_calc_bogomips(); #endif + pmu_resume(); + preempt_enable(); return 0; diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c index 9d4ed68b5804..000ba47c67cb 100644 --- a/arch/ppc/syslib/open_pic.c +++ b/arch/ppc/syslib/open_pic.c @@ -275,7 +275,7 @@ static void __init openpic_enable_sie(void) } #endif -#if defined(CONFIG_EPIC_SERIAL_MODE) || defined(CONFIG_PM) +#if defined(CONFIG_EPIC_SERIAL_MODE) static void openpic_reset(void) { openpic_setfield(&OpenPIC->Global.Global_Configuration0, @@ -993,8 +993,6 @@ int openpic_resume(struct sys_device *sysdev) return 0; } - openpic_reset(); - /* OpenPIC sometimes seem to need some time to be fully back up... */ do { openpic_set_spurious(OPENPIC_VEC_SPURIOUS); diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index e654aa5eecd4..bb9f4044c74d 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -2421,7 +2421,7 @@ pmac_wakeup_devices(void) /* Re-enable local CPU interrupts */ local_irq_enable(); - mdelay(100); + mdelay(10); preempt_enable(); /* Re-enable clock spreading on some machines */ @@ -2549,7 +2549,9 @@ powerbook_sleep_Core99(void) return ret; } - printk(KERN_DEBUG "HID1, before: %x\n", mfspr(SPRN_HID1)); + /* Stop environment and ADB interrupts */ + pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, 0); + pmu_wait_complete(&req); /* Tell PMU what events will wake us up */ pmu_request(&req, NULL, 4, PMU_POWER_EVENTS, PMU_PWR_CLR_WAKEUP_EVENTS, @@ -2611,8 +2613,6 @@ powerbook_sleep_Core99(void) pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, pmu_intr_mask); pmu_wait_complete(&req); - printk(KERN_DEBUG "HID1, after: %x\n", mfspr(SPRN_HID1)); - pmac_wakeup_devices(); return 0; -- cgit v1.2.3 From b9e0d0696c9e86d4e40b23039feefb8c377cb524 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Sat, 28 May 2005 15:51:53 -0700 Subject: [PATCH] uml: fix a couple of warnings Eliminate an unused variable warning in ptrace.c and a size mismatch warning by adding a cast to __pa. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/ptrace.c | 19 +++---------------- include/asm-um/page.h | 8 +++++++- 2 files changed, 10 insertions(+), 17 deletions(-) (limited to 'arch') diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 2925e15324de..71af4d503899 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -322,11 +322,9 @@ void syscall_trace(union uml_pt_regs *regs, int entryexit) UPT_SYSCALL_ARG2(regs), UPT_SYSCALL_ARG3(regs), UPT_SYSCALL_ARG4(regs)); - else { - int res = UPT_SYSCALL_RET(regs); - audit_syscall_exit(current, AUDITSC_RESULT(res), - res); - } + else audit_syscall_exit(current, + AUDITSC_RESULT(UPT_SYSCALL_RET(regs)), + UPT_SYSCALL_RET(regs)); } /* Fake a debug trap */ @@ -356,14 +354,3 @@ void syscall_trace(union uml_pt_regs *regs, int entryexit) current->exit_code = 0; } } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/include/asm-um/page.h b/include/asm-um/page.h index 504ea8e486b0..5afee8a8cdf3 100644 --- a/include/asm-um/page.h +++ b/include/asm-um/page.h @@ -98,7 +98,13 @@ extern unsigned long uml_physmem; extern unsigned long to_phys(void *virt); extern void *to_virt(unsigned long phys); -#define __pa(virt) to_phys((void *) virt) + +/* Cast to unsigned long before casting to void * to avoid a warning from + * mmap_kmem about cutting a long long down to a void *. Not sure that + * casting is the right thing, but 32-bit UML can't have 64-bit virtual + * addresses + */ +#define __pa(virt) to_phys((void *) (unsigned long) virt) #define __va(phys) to_virt((unsigned long) phys) #define page_to_pfn(page) ((page) - mem_map) -- cgit v1.2.3 From 6770cb61ff6d557613a8382b28f9b0a919fb112f Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Sat, 28 May 2005 15:51:54 -0700 Subject: [PATCH] uml: turn off kmalloc always on a fatal signal We should turn off kmalloc when getting a fatal signal regardless of the mode we're in. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/um/kernel/main.c b/arch/um/kernel/main.c index a17c49703f9b..939e3b708670 100644 --- a/arch/um/kernel/main.c +++ b/arch/um/kernel/main.c @@ -71,7 +71,7 @@ static __init void do_uml_initcalls(void) static void last_ditch_exit(int sig) { - CHOOSE_MODE(kmalloc_ok = 0, (void) 0); + kmalloc_ok = 0; signal(SIGINT, SIG_DFL); signal(SIGTERM, SIG_DFL); signal(SIGHUP, SIG_DFL); -- cgit v1.2.3 From a2e4b972c99685d9d7b869c4bf8d8b258ff5b60c Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Sat, 28 May 2005 15:51:54 -0700 Subject: [PATCH] uml: remove 2_5compat.h Remove old useless header that was used in Ye Olde Times during 2.4->2.5 porting to abstract differences. It's definitions are no more used anyway, so let's finally kill it. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/ssl.c | 1 - arch/um/drivers/stdio_console.c | 1 - arch/um/drivers/ubd_kern.c | 1 - arch/um/include/2_5compat.h | 24 ------------------------ arch/um/kernel/exec_kern.c | 1 - arch/um/kernel/process_kern.c | 2 -- arch/um/kernel/trap_kern.c | 1 - fs/hostfs/hostfs_kern.c | 1 - 8 files changed, 32 deletions(-) delete mode 100644 arch/um/include/2_5compat.h (limited to 'arch') diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index a2bac429f3d4..b32a77010fbe 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -22,7 +22,6 @@ #include "init.h" #include "irq_user.h" #include "mconsole_kern.h" -#include "2_5compat.h" static int ssl_version = 1; diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 361d0be342b3..afbe1e71ed83 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c @@ -28,7 +28,6 @@ #include "irq_user.h" #include "mconsole_kern.h" #include "init.h" -#include "2_5compat.h" #define MAX_TTYS (16) diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 88f956c34fed..7e98e3e168c1 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -49,7 +49,6 @@ #include "irq_user.h" #include "irq_kern.h" #include "ubd_user.h" -#include "2_5compat.h" #include "os.h" #include "mem.h" #include "mem_kern.h" diff --git a/arch/um/include/2_5compat.h b/arch/um/include/2_5compat.h deleted file mode 100644 index abdb015a4d71..000000000000 --- a/arch/um/include/2_5compat.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * Copyright (C) 2001 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#ifndef __2_5_COMPAT_H__ -#define __2_5_COMPAT_H__ - -#define INIT_HARDSECT(arr, maj, sizes) - -#define SET_PRI(task) do ; while(0) - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/exec_kern.c b/arch/um/kernel/exec_kern.c index 49ddabe69be7..efd222ffe20e 100644 --- a/arch/um/kernel/exec_kern.c +++ b/arch/um/kernel/exec_kern.c @@ -16,7 +16,6 @@ #include "kern.h" #include "irq_user.h" #include "tlb.h" -#include "2_5compat.h" #include "os.h" #include "time_user.h" #include "choose-mode.h" diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c index c1adf7ba3fd1..ccb6dd6565ec 100644 --- a/arch/um/kernel/process_kern.c +++ b/arch/um/kernel/process_kern.c @@ -43,7 +43,6 @@ #include "tlb.h" #include "frame_kern.h" #include "sigcontext.h" -#include "2_5compat.h" #include "os.h" #include "mode.h" #include "mode_kern.h" @@ -189,7 +188,6 @@ void default_idle(void) while(1){ /* endless idle loop with no priority at all */ - SET_PRI(current); /* * although we are an idle CPU, we do not want to diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c index 1de22d8a313a..c20aef120598 100644 --- a/arch/um/kernel/trap_kern.c +++ b/arch/um/kernel/trap_kern.c @@ -23,7 +23,6 @@ #include "kern.h" #include "chan_kern.h" #include "mconsole_kern.h" -#include "2_5compat.h" #include "mem.h" #include "mem_kern.h" diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 14a0d339d036..4bf43ea87c46 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -23,7 +23,6 @@ #include "kern_util.h" #include "kern.h" #include "user_util.h" -#include "2_5compat.h" #include "init.h" struct hostfs_inode_info { -- cgit v1.2.3 From 0894e27e7999bdbad2e65734caa1d5de65e7d890 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Sat, 28 May 2005 15:51:55 -0700 Subject: [PATCH] uml: single-space a help message One of the ubd driver help strings was bust. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/ubd_kern.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 7e98e3e168c1..2a7f6892c55c 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -439,9 +439,9 @@ static int udb_setup(char *str) __setup("udb", udb_setup); __uml_help(udb_setup, "udb\n" -" This option is here solely to catch ubd -> udb typos, which can be\n\n" -" to impossible to catch visually unless you specifically look for\n\n" -" them. The only result of any option starting with 'udb' is an error\n\n" +" This option is here solely to catch ubd -> udb typos, which can be\n" +" to impossible to catch visually unless you specifically look for\n" +" them. The only result of any option starting with 'udb' is an error\n" " in the boot output.\n\n" ); -- cgit v1.2.3 From 92515da73a5df50db45111b8659ac463b4800236 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Sat, 28 May 2005 15:51:56 -0700 Subject: [PATCH] uml: fix segfault on exit with CONFIG_GCOV We need to disable signals on exit in all cases, not just when rebooting. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/main.c | 38 ++++++++++++++++++++------------------ 1 file changed, 20 insertions(+), 18 deletions(-) (limited to 'arch') diff --git a/arch/um/kernel/main.c b/arch/um/kernel/main.c index 939e3b708670..e42e6364ca13 100644 --- a/arch/um/kernel/main.c +++ b/arch/um/kernel/main.c @@ -87,7 +87,7 @@ int main(int argc, char **argv, char **envp) { char **new_argv; sigset_t mask; - int ret, i; + int ret, i, err; /* Enable all signals except SIGIO - in some environments, we can * enter with some signals blocked @@ -160,27 +160,29 @@ int main(int argc, char **argv, char **envp) */ change_sig(SIGPROF, 0); - /* Reboot */ - if(ret){ - int err; - - printf("\n"); + /* This signal stuff used to be in the reboot case. However, + * sometimes a SIGVTALRM can come in when we're halting (reproducably + * when writing out gcov information, presumably because that takes + * some time) and cause a segfault. + */ - /* stop timers and set SIG*ALRM to be ignored */ - disable_timer(); + /* stop timers and set SIG*ALRM to be ignored */ + disable_timer(); - /* disable SIGIO for the fds and set SIGIO to be ignored */ - err = deactivate_all_fds(); - if(err) - printf("deactivate_all_fds failed, errno = %d\n", - -err); + /* disable SIGIO for the fds and set SIGIO to be ignored */ + err = deactivate_all_fds(); + if(err) + printf("deactivate_all_fds failed, errno = %d\n", -err); - /* Let any pending signals fire now. This ensures - * that they won't be delivered after the exec, when - * they are definitely not expected. - */ - unblock_signals(); + /* Let any pending signals fire now. This ensures + * that they won't be delivered after the exec, when + * they are definitely not expected. + */ + unblock_signals(); + /* Reboot */ + if(ret){ + printf("\n"); execvp(new_argv[0], new_argv); perror("Failed to exec kernel"); ret = 1; -- cgit v1.2.3 From 7590d3ec1cda7d504c25103bde0c9911f93810e9 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Sat, 28 May 2005 15:51:57 -0700 Subject: [PATCH] uml: remove unused code This removes two now unused files and a couple of unused functions. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/initrd_kern.c | 59 ------------------------------------------- arch/um/kernel/initrd_user.c | 46 --------------------------------- arch/um/kernel/process_kern.c | 34 ------------------------- 3 files changed, 139 deletions(-) delete mode 100644 arch/um/kernel/initrd_kern.c delete mode 100644 arch/um/kernel/initrd_user.c (limited to 'arch') diff --git a/arch/um/kernel/initrd_kern.c b/arch/um/kernel/initrd_kern.c deleted file mode 100644 index fc568af468b9..000000000000 --- a/arch/um/kernel/initrd_kern.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#include "linux/init.h" -#include "linux/bootmem.h" -#include "linux/initrd.h" -#include "asm/types.h" -#include "user_util.h" -#include "kern_util.h" -#include "initrd.h" -#include "init.h" -#include "os.h" - -/* Changed by uml_initrd_setup, which is a setup */ -static char *initrd __initdata = NULL; - -static int __init read_initrd(void) -{ - void *area; - long long size; - int err; - - if(initrd == NULL) return 0; - err = os_file_size(initrd, &size); - if(err) return 0; - area = alloc_bootmem(size); - if(area == NULL) return 0; - if(load_initrd(initrd, area, size) == -1) return 0; - initrd_start = (unsigned long) area; - initrd_end = initrd_start + size; - return 0; -} - -__uml_postsetup(read_initrd); - -static int __init uml_initrd_setup(char *line, int *add) -{ - initrd = line; - return 0; -} - -__uml_setup("initrd=", uml_initrd_setup, -"initrd=\n" -" This is used to boot UML from an initrd image. The argument is the\n" -" name of the file containing the image.\n\n" -); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/initrd_user.c b/arch/um/kernel/initrd_user.c deleted file mode 100644 index cb90681e151c..000000000000 --- a/arch/um/kernel/initrd_user.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#include -#include -#include -#include - -#include "user_util.h" -#include "kern_util.h" -#include "user.h" -#include "initrd.h" -#include "os.h" - -int load_initrd(char *filename, void *buf, int size) -{ - int fd, n; - - fd = os_open_file(filename, of_read(OPENFLAGS()), 0); - if(fd < 0){ - printk("Opening '%s' failed - err = %d\n", filename, -fd); - return(-1); - } - n = os_read_file(fd, buf, size); - if(n != size){ - printk("Read of %d bytes from '%s' failed, err = %d\n", size, - filename, -n); - return(-1); - } - - os_close_file(fd); - return(0); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c index ccb6dd6565ec..804c6bbdf67c 100644 --- a/arch/um/kernel/process_kern.c +++ b/arch/um/kernel/process_kern.c @@ -54,18 +54,6 @@ */ struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } }; -struct task_struct *get_task(int pid, int require) -{ - struct task_struct *ret; - - read_lock(&tasklist_lock); - ret = find_task_by_pid(pid); - read_unlock(&tasklist_lock); - - if(require && (ret == NULL)) panic("get_task couldn't find a task\n"); - return(ret); -} - int external_pid(void *t) { struct task_struct *task = t ? t : current; @@ -210,11 +198,6 @@ int page_size(void) return(PAGE_SIZE); } -unsigned long page_mask(void) -{ - return(PAGE_MASK); -} - void *um_virt_to_phys(struct task_struct *task, unsigned long addr, pte_t *pte_out) { @@ -347,11 +330,6 @@ char *uml_strdup(char *string) return(new); } -void *get_init_task(void) -{ - return(&init_thread_union.thread_info.task); -} - int copy_to_user_proc(void __user *to, void *from, int size) { return(copy_to_user(to, from, size)); @@ -478,15 +456,3 @@ unsigned long arch_align_stack(unsigned long sp) return sp & ~0xf; } #endif - - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ -- cgit v1.2.3 From 567b56508f7367e161d6d861ef214a900ab45ce9 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sat, 28 May 2005 15:51:58 -0700 Subject: [PATCH] uml: add MOD_LICENSE to random driver Add a MODULE_LICENSE("GPL") to the driver, remove some unused macros and add the GPL license (it's GPL-licensed anyway since it's a GPL-derivative, apart that Jeff Dike releases GPL software, in case anybody is wondering). Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/random.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c index d43e9fab05a7..f9e22198e011 100644 --- a/arch/um/drivers/random.c +++ b/arch/um/drivers/random.c @@ -1,5 +1,10 @@ -/* Much of this ripped from hw_random.c */ - +/* Copyright (C) 2005 Jeff Dike */ +/* Much of this ripped from drivers/char/hw_random.c, see there for other + * copyright. + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + */ #include #include #include @@ -12,8 +17,6 @@ */ #define RNG_VERSION "1.0.0" #define RNG_MODULE_NAME "random" -#define RNG_DRIVER_NAME RNG_MODULE_NAME " virtual driver " RNG_VERSION -#define PFX RNG_MODULE_NAME ": " #define RNG_MISCDEV_MINOR 183 /* official */ @@ -98,7 +101,7 @@ static int __init rng_init (void) err = misc_register (&rng_miscdev); if (err) { - printk (KERN_ERR PFX "misc device register failed\n"); + printk (KERN_ERR RNG_MODULE_NAME ": misc device register failed\n"); goto err_out_cleanup_hw; } @@ -120,3 +123,6 @@ static void __exit rng_cleanup (void) module_init (rng_init); module_exit (rng_cleanup); + +MODULE_DESCRIPTION("UML Host Random Number Generator (RNG) driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 37fce857bec00d26d0e8251c909da2bd8736c949 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sat, 28 May 2005 15:51:59 -0700 Subject: [PATCH] uml: split CONFIG_FRAME_POINTER from DEBUG_INFO Until now, FRAME_POINTER was set = DEBUG_INFO for UML. Change it to be the default way, so that it can be enabled alone (for instance to get better backtraces on crashes). The call-trace dumper which uses the frame pointer is not yet in, I'm going to introduce it in a separate patch. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/Kconfig.debug | 4 ---- lib/Kconfig.debug | 3 ++- 2 files changed, 2 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug index b89989de364d..bd41e4286d0d 100644 --- a/arch/um/Kconfig.debug +++ b/arch/um/Kconfig.debug @@ -2,10 +2,6 @@ menu "Kernel hacking" source "lib/Kconfig.debug" -config FRAME_POINTER - bool - default y if DEBUG_INFO - config PT_PROXY bool "Enable ptrace proxy" depends on XTERM_CHAN && DEBUG_INFO && MODE_TT diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ac23847ce0e3..0c421295e613 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -151,7 +151,8 @@ config DEBUG_FS config FRAME_POINTER bool "Compile the kernel with frame pointers" - depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV) + depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV || UML) + default y if DEBUG_INFO && UML help If you say Y here the resulting kernel image will be slightly larger and slower, but it will give very useful debugging information. -- cgit v1.2.3 From b3461034d7d46455060c8476910be22b6b0fc313 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sat, 28 May 2005 15:52:00 -0700 Subject: [PATCH] uml: stack dump fix Copy (and adapt) to UML the stack code dumper used in i386 when CONFIG_FRAME_POINTER is enabled. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/sysrq.h | 3 +- arch/um/kernel/sysrq.c | 21 ++++++++---- arch/um/sys-i386/sysrq.c | 80 +++++++++++++++++++++++++++++++++++++++++++- arch/um/sys-ppc/sysrq.c | 14 +------- arch/um/sys-x86_64/sysrq.c | 11 +----- include/asm-um/thread_info.h | 7 ++-- 6 files changed, 100 insertions(+), 36 deletions(-) (limited to 'arch') diff --git a/arch/um/include/sysrq.h b/arch/um/include/sysrq.h index 2ce9423460b3..c8d332b56b98 100644 --- a/arch/um/include/sysrq.h +++ b/arch/um/include/sysrq.h @@ -1,6 +1,7 @@ #ifndef __UM_SYSRQ_H #define __UM_SYSRQ_H -extern void show_trace(unsigned long *stack); +struct task_struct; +extern void show_trace(struct task_struct* task, unsigned long *stack); #endif diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index e630438f9e73..f80850091e79 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -3,6 +3,7 @@ * Licensed under the GPL */ +#include "linux/config.h" #include "linux/sched.h" #include "linux/kernel.h" #include "linux/module.h" @@ -12,14 +13,14 @@ #include "sysrq.h" #include "user_util.h" -void show_trace(unsigned long * stack) +/* Catch non-i386 SUBARCH's. */ +#if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT) +void show_trace(struct task_struct *task, unsigned long * stack) { - /* XXX: Copy the CONFIG_FRAME_POINTER stack-walking backtrace from - * arch/i386/kernel/traps.c, and then move this to sys-i386/sysrq.c.*/ unsigned long addr; if (!stack) { - stack = (unsigned long*) &stack; + stack = (unsigned long*) &stack; WARN_ON(1); } @@ -35,6 +36,7 @@ void show_trace(unsigned long * stack) } printk("\n"); } +#endif /* * stack dumps generator - this is used by arch-independent code. @@ -44,7 +46,7 @@ void dump_stack(void) { unsigned long stack; - show_trace(&stack); + show_trace(current, &stack); } EXPORT_SYMBOL(dump_stack); @@ -59,7 +61,11 @@ void show_stack(struct task_struct *task, unsigned long *esp) int i; if (esp == NULL) { - if (task != current) { + if (task != current && task != NULL) { + /* XXX: Isn't this bogus? I.e. isn't this the + * *userspace* stack of this task? If not so, use this + * even when task == current (as in i386). + */ esp = (unsigned long *) KSTK_ESP(task); /* Which one? No actual difference - just coding style.*/ //esp = (unsigned long *) PT_REGS_IP(&task->thread.regs); @@ -77,5 +83,6 @@ void show_stack(struct task_struct *task, unsigned long *esp) printk("%08lx ", *stack++); } - show_trace(esp); + printk("Call Trace: \n"); + show_trace(current, esp); } diff --git a/arch/um/sys-i386/sysrq.c b/arch/um/sys-i386/sysrq.c index 281fc7b8ca00..e3706d15c4f5 100644 --- a/arch/um/sys-i386/sysrq.c +++ b/arch/um/sys-i386/sysrq.c @@ -3,12 +3,15 @@ * Licensed under the GPL */ +#include "linux/config.h" #include "linux/kernel.h" #include "linux/smp.h" #include "linux/sched.h" +#include "linux/kallsyms.h" #include "asm/ptrace.h" #include "sysrq.h" +/* This is declared by */ void show_regs(struct pt_regs *regs) { printk("\n"); @@ -31,5 +34,80 @@ void show_regs(struct pt_regs *regs) 0xffff & PT_REGS_DS(regs), 0xffff & PT_REGS_ES(regs)); - show_trace((unsigned long *) ®s); + show_trace(NULL, (unsigned long *) ®s); } + +/* Copied from i386. */ +static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) +{ + return p > (void *)tinfo && + p < (void *)tinfo + THREAD_SIZE - 3; +} + +/* Adapted from i386 (we also print the address we read from). */ +static inline unsigned long print_context_stack(struct thread_info *tinfo, + unsigned long *stack, unsigned long ebp) +{ + unsigned long addr; + +#ifdef CONFIG_FRAME_POINTER + while (valid_stack_ptr(tinfo, (void *)ebp)) { + addr = *(unsigned long *)(ebp + 4); + printk("%08lx: [<%08lx>]", ebp + 4, addr); + print_symbol(" %s", addr); + printk("\n"); + ebp = *(unsigned long *)ebp; + } +#else + while (valid_stack_ptr(tinfo, stack)) { + addr = *stack; + if (__kernel_text_address(addr)) { + printk("%08lx: [<%08lx>]", (unsigned long) stack, addr); + print_symbol(" %s", addr); + printk("\n"); + } + stack++; + } +#endif + return ebp; +} + +void show_trace(struct task_struct* task, unsigned long * stack) +{ + unsigned long ebp; + struct thread_info *context; + + /* Turn this into BUG_ON if possible. */ + if (!stack) { + stack = (unsigned long*) &stack; + printk("show_trace: got NULL stack, implicit assumption task == current"); + WARN_ON(1); + } + + if (!task) + task = current; + + if (task != current) { + //ebp = (unsigned long) KSTK_EBP(task); + /* Which one? No actual difference - just coding style.*/ + ebp = (unsigned long) PT_REGS_EBP(&task->thread.regs); + } else { + asm ("movl %%ebp, %0" : "=r" (ebp) : ); + } + + context = (struct thread_info *) + ((unsigned long)stack & (~(THREAD_SIZE - 1))); + print_context_stack(context, stack, ebp); + + /*while (((long) stack & (THREAD_SIZE-1)) != 0) { + addr = *stack; + if (__kernel_text_address(addr)) { + printk("%08lx: [<%08lx>]", (unsigned long) stack, addr); + print_symbol(" %s", addr); + printk("\n"); + } + stack++; + }*/ + printk("\n"); +} + diff --git a/arch/um/sys-ppc/sysrq.c b/arch/um/sys-ppc/sysrq.c index 82d6e9335bb6..2f816f1a0ff4 100644 --- a/arch/um/sys-ppc/sysrq.c +++ b/arch/um/sys-ppc/sysrq.c @@ -27,17 +27,5 @@ void show_regs(struct pt_regs_subarch *regs) 0xffff & regs->xds, 0xffff & regs->xes); #endif - show_trace(®s->gpr[1]); + show_trace(current, ®s->gpr[1]); } - - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/sys-x86_64/sysrq.c b/arch/um/sys-x86_64/sysrq.c index ddf74691a610..d0a25af19a5b 100644 --- a/arch/um/sys-x86_64/sysrq.c +++ b/arch/um/sys-x86_64/sysrq.c @@ -36,14 +36,5 @@ void __show_regs(struct pt_regs * regs) void show_regs(struct pt_regs *regs) { __show_regs(regs); - show_trace((unsigned long *) ®s); + show_trace(current, (unsigned long *) ®s); } - -/* Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h index a10ea155907e..e4f0198240c5 100644 --- a/include/asm-um/thread_info.h +++ b/include/asm-um/thread_info.h @@ -41,18 +41,17 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) +#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE) /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; - unsigned long mask = PAGE_SIZE * - (1 << CONFIG_KERNEL_STACK_ORDER) - 1; - ti = (struct thread_info *) (((unsigned long) &ti) & ~mask); + unsigned long mask = THREAD_SIZE - 1; + ti = (struct thread_info *) (((unsigned long) &ti) & ~mask); return ti; } /* thread information allocation */ -#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE) #define alloc_thread_info(tsk) \ ((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL)) #define free_thread_info(ti) kfree(ti) -- cgit v1.2.3 From f767b02f35a3db5c1b1c6454992c070510cef07f Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sat, 28 May 2005 15:52:03 -0700 Subject: [PATCH] uml: fixlet for arch_prctl_skas Fix it a bit (after some cross checking with "man arch_prctl"). There were: *) typos FS/GS and back *) FS in place of FS_BASE (and the same for GS) *) the procedure used put_user on &addr, where addr was the parameter (i.e. changed its param with put_user, completely useless) rather than interpreting addr as a pointer, as requested in this case (see the man page). Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/sys-x86_64/syscalls.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index d4a59657fb99..6f44f40204ed 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -133,23 +133,27 @@ static long arch_prctl_tt(int code, unsigned long addr) #ifdef CONFIG_MODE_SKAS +/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */ static long arch_prctl_skas(int code, unsigned long addr) { long ret = 0; switch(code){ - case ARCH_SET_GS: - current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; - break; case ARCH_SET_FS: current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr; break; + case ARCH_SET_GS: + current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; + break; case ARCH_GET_FS: - ret = put_user(current->thread.regs.regs.skas.regs[GS / sizeof(unsigned long)], &addr); + ret = put_user(current->thread.regs.regs.skas. + regs[FS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; case ARCH_GET_GS: - ret = put_user(current->thread.regs.regs.skas.regs[FS / sizeof(unsigned \ -long)], &addr); + ret = put_user(current->thread.regs.regs.skas. + regs[GS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; default: ret = -EINVAL; -- cgit v1.2.3 From 8e21683bb458c73c6fe87844202a64eac730995e Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sat, 28 May 2005 15:52:04 -0700 Subject: [PATCH] uml: remove jail mode + other leftovers This var is currently useless, as it's apparent from reading the code. Until 2.6.11 it was used in some code related to jail mode, in the same proc.: if(jail){ while(!reading) sched_yield(); } jail mode has been dropped, together with that use, so let's finish dropping this. Also, remove some other useless definitions I met. Acked-by: Jeff Dike Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/tt/process_kern.c | 8 +------- arch/um/kernel/um_arch.c | 6 ------ include/asm-um/pgtable.h | 8 -------- 3 files changed, 1 insertion(+), 21 deletions(-) (limited to 'arch') diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c index df810ca8fc12..776310fd5b8b 100644 --- a/arch/um/kernel/tt/process_kern.c +++ b/arch/um/kernel/tt/process_kern.c @@ -32,10 +32,6 @@ void *switch_to_tt(void *prev, void *next, void *last) unsigned long flags; int err, vtalrm, alrm, prof, cpu; char c; - /* jailing and SMP are incompatible, so this doesn't need to be - * made per-cpu - */ - static int reading; from = prev; to = next; @@ -59,13 +55,11 @@ void *switch_to_tt(void *prev, void *next, void *last) c = 0; set_current(to); - reading = 0; err = os_write_file(to->thread.mode.tt.switch_pipe[1], &c, sizeof(c)); if(err != sizeof(c)) panic("write of switch_pipe failed, err = %d", -err); - reading = 1; - if(from->thread.mode.tt.switch_pipe[0] == -1) + if(from->thread.mode.tt.switch_pipe[0] == -1) os_kill_process(os_getpid(), 0); err = os_read_file(from->thread.mode.tt.switch_pipe[0], &c, sizeof(c)); diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 4d10ec372a67..418427107b29 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -111,12 +111,6 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; -pte_t * __bad_pagetable(void) -{ - panic("Someone should implement __bad_pagetable"); - return(NULL); -} - /* Set in linux_main */ unsigned long host_task_size; unsigned long task_size; diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index 510e513c7f88..a88040920311 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h @@ -114,17 +114,9 @@ extern unsigned long end_iomem; extern unsigned long pg0[1024]; /* - * BAD_PAGETABLE is used when we need a bogus page-table, while - * BAD_PAGE is used for a bogus page. - * * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. */ -extern pte_t __bad_page(void); -extern pte_t * __bad_pagetable(void); - -#define BAD_PAGETABLE __bad_pagetable() -#define BAD_PAGE __bad_page() #define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page) -- cgit v1.2.3 From 94b9f46d61904422c498bf4cf9a90cc14398d311 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:05 -0700 Subject: [PATCH] ppc32: Fix uImage make target to report success correctly The existing make rule when building a uImage would check to see if the image file existed to report 'is ready' or 'not made'. However make appeared to compute the file list before the rule was executed. Signed-off-by: Chris Clark Signed-off-by: Kumar Gala Signed-off-by: Sam Ravnborg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/boot/images/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ppc/boot/images/Makefile b/arch/ppc/boot/images/Makefile index f850fb0fb511..c9ac5f5fa9e4 100644 --- a/arch/ppc/boot/images/Makefile +++ b/arch/ppc/boot/images/Makefile @@ -22,7 +22,8 @@ targets += uImage $(obj)/uImage: $(obj)/vmlinux.gz $(Q)rm -f $@ $(call if_changed,uimage) - @echo ' Image: $@' $(if $(wildcard $@),'is ready','not made') + @echo -n ' Image: $@ ' + @if [ -f $@ ]; then echo 'is ready' ; else echo 'not made'; fi # Files generated that shall be removed upon make clean clean-files := sImage vmapus vmlinux* miboot* zImage* uImage -- cgit v1.2.3 From 252fcaed48fc5473b3fc3cafbf977244b0cbf670 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:06 -0700 Subject: [PATCH] ppc32: Fix some minor issues related to FSL Book-E KGDB support Some debug registers needed to be initialized early on to allow proper support for KGDB. Additionally, we need to setup the ppc.md_early_serial_map function pointer on boards that have serial support for KGDB. Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/head_fsl_booke.S | 15 ++++++++++++++- arch/ppc/platforms/85xx/mpc8540_ads.c | 3 +++ arch/ppc/platforms/85xx/mpc85xx_cds_common.c | 3 +++ arch/ppc/platforms/85xx/sbc8560.c | 3 +++ 4 files changed, 23 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S index f22ddce36135..ce36e88ba627 100644 --- a/arch/ppc/kernel/head_fsl_booke.S +++ b/arch/ppc/kernel/head_fsl_booke.S @@ -232,7 +232,8 @@ skpinv: addi r6,r6,1 /* Increment */ tlbwe /* 7. Jump to KERNELBASE mapping */ - li r7,0 + lis r7,MSR_KERNEL@h + ori r7,r7,MSR_KERNEL@l bl 1f /* Find our address */ 1: mflr r9 rlwimi r6,r9,0,20,31 @@ -293,6 +294,18 @@ skpinv: addi r6,r6,1 /* Increment */ mtspr SPRN_HID0, r2 #endif +#if !defined(CONFIG_BDI_SWITCH) + /* + * The Abatron BDI JTAG debugger does not tolerate others + * mucking with the debug registers. + */ + lis r2,DBCR0_IDM@h + mtspr SPRN_DBCR0,r2 + /* clear any residual debug events */ + li r2,-1 + mtspr SPRN_DBSR,r2 +#endif + /* * This is where the main kernel code starts. */ diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/platforms/85xx/mpc8540_ads.c index 4d857d6d633d..583838ab02d8 100644 --- a/arch/ppc/platforms/85xx/mpc8540_ads.c +++ b/arch/ppc/platforms/85xx/mpc8540_ads.c @@ -210,6 +210,9 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5, #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) ppc_md.progress = gen550_progress; #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) + ppc_md.early_serial_map = mpc85xx_early_serial_map; +#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ if (ppc_md.progress) ppc_md.progress("mpc8540ads_init(): exit", 0); diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c index 6c020d67ad70..11fb758d269f 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c +++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c @@ -459,6 +459,9 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5, #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) ppc_md.progress = gen550_progress; #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) + ppc_md.early_serial_map = mpc85xx_early_serial_map; +#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ if (ppc_md.progress) ppc_md.progress("mpc85xx_cds_init(): exit", 0); diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c index 9ab05e590c3e..7b9e1543e175 100644 --- a/arch/ppc/platforms/85xx/sbc8560.c +++ b/arch/ppc/platforms/85xx/sbc8560.c @@ -221,6 +221,9 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5, #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) ppc_md.progress = gen550_progress; #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) + ppc_md.early_serial_map = sbc8560_early_serial_map; +#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ if (ppc_md.progress) ppc_md.progress("sbc8560_init(): exit", 0); -- cgit v1.2.3 From ed36959621451da7195be83b87878b060ce64724 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:07 -0700 Subject: [PATCH] ppc32: Add VIA IDE support to MPC8555 CDS platform Add support for the VIA IDE controller that exists on the MPC8555 CDS system. Updated the config for the system to enable support by default. Signed-off-by: Scott Hall Signed-off-by: Kumar Gala Cc: Bartlomiej Zolnierkiewicz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/configs/mpc8555_cds_defconfig | 117 ++++++++++++++++++----- arch/ppc/platforms/85xx/mpc85xx_cds_common.c | 138 ++++++++++++++++++++++++++- arch/ppc/platforms/85xx/mpc85xx_cds_common.h | 3 + arch/ppc/syslib/Makefile | 2 +- arch/ppc/syslib/ppc85xx_setup.c | 16 ++++ 5 files changed, 248 insertions(+), 28 deletions(-) (limited to 'arch') diff --git a/arch/ppc/configs/mpc8555_cds_defconfig b/arch/ppc/configs/mpc8555_cds_defconfig index 728bd9e1a8fa..15abebf46b96 100644 --- a/arch/ppc/configs/mpc8555_cds_defconfig +++ b/arch/ppc/configs/mpc8555_cds_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.11-rc1 -# Thu Jan 20 01:25:35 2005 +# Linux kernel version: 2.6.12-rc4 +# Tue May 17 11:56:01 2005 # CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y @@ -11,6 +11,7 @@ CONFIG_HAVE_DEC_LOCK=y CONFIG_PPC=y CONFIG_PPC32=y CONFIG_GENERIC_NVRAM=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y # # Code maturity level options @@ -18,6 +19,7 @@ CONFIG_GENERIC_NVRAM=y CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -29,12 +31,14 @@ CONFIG_SYSVIPC=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set -CONFIG_LOG_BUF_SHIFT=14 # CONFIG_HOTPLUG is not set CONFIG_KOBJECT_UEVENT=y # CONFIG_IKCONFIG is not set CONFIG_EMBEDDED=y # CONFIG_KALLSYMS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y CONFIG_FUTEX=y # CONFIG_EPOLL is not set # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set @@ -44,6 +48,7 @@ CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 # # Loadable module support @@ -62,10 +67,12 @@ CONFIG_CC_ALIGN_JUMPS=0 CONFIG_E500=y CONFIG_BOOKE=y CONFIG_FSL_BOOKE=y +# CONFIG_PHYS_64BIT is not set CONFIG_SPE=y CONFIG_MATH_EMULATION=y # CONFIG_CPU_FREQ is not set CONFIG_PPC_GEN550=y +# CONFIG_PM is not set CONFIG_85xx=y CONFIG_PPC_INDIRECT_PCI_BE=y @@ -76,6 +83,7 @@ CONFIG_PPC_INDIRECT_PCI_BE=y CONFIG_MPC8555_CDS=y # CONFIG_MPC8560_ADS is not set # CONFIG_SBC8560 is not set +# CONFIG_STX_GP3 is not set CONFIG_MPC8555=y CONFIG_85xx_PCI2=y @@ -90,6 +98,7 @@ CONFIG_CPM2=y CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set # CONFIG_CMDLINE_BOOL is not set +CONFIG_ISA_DMA_API=y # # Bus options @@ -104,10 +113,6 @@ CONFIG_PCI_NAMES=y # # CONFIG_PCCARD is not set -# -# PC-card bridges -# - # # Advanced setup # @@ -180,7 +185,59 @@ CONFIG_IOSCHED_CFQ=y # # ATA/ATAPI/MFM/RLL support # -# CONFIG_IDE is not set +CONFIG_IDE=y +CONFIG_BLK_DEV_IDE=y + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_BLK_DEV_IDEDISK=y +# CONFIG_IDEDISK_MULTI_MODE is not set +# CONFIG_BLK_DEV_IDECD is not set +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=y +CONFIG_BLK_DEV_IDEPCI=y +CONFIG_IDEPCI_SHARE_IRQ=y +# CONFIG_BLK_DEV_OFFBOARD is not set +CONFIG_BLK_DEV_GENERIC=y +# CONFIG_BLK_DEV_OPTI621 is not set +# CONFIG_BLK_DEV_SL82C105 is not set +CONFIG_BLK_DEV_IDEDMA_PCI=y +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set +CONFIG_IDEDMA_PCI_AUTO=y +# CONFIG_IDEDMA_ONLYDISK is not set +# CONFIG_BLK_DEV_AEC62XX is not set +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +# CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +CONFIG_BLK_DEV_VIA82CXXX=y +# CONFIG_IDE_ARM is not set +CONFIG_BLK_DEV_IDEDMA=y +# CONFIG_IDEDMA_IVB is not set +CONFIG_IDEDMA_AUTO=y +# CONFIG_BLK_DEV_HD is not set # # SCSI device support @@ -220,7 +277,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y @@ -369,14 +425,6 @@ CONFIG_INPUT=y # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set -# -# Input I/O drivers -# -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -# CONFIG_SERIO is not set -# CONFIG_SERIO_I8042 is not set - # # Input Device Drivers # @@ -386,6 +434,13 @@ CONFIG_SOUND_GAMEPORT=y # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set +CONFIG_SOUND_GAMEPORT=y + # # Character devices # @@ -406,6 +461,7 @@ CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_CPM is not set +# CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -433,6 +489,11 @@ CONFIG_GEN_RTC=y # CONFIG_DRM is not set # CONFIG_RAW_DRIVER is not set +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + # # I2C support # @@ -456,11 +517,11 @@ CONFIG_I2C_CHARDEV=y # CONFIG_I2C_AMD8111 is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_ISA is not set CONFIG_I2C_MPC=y # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set # CONFIG_SCx200_ACB is not set @@ -483,7 +544,9 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_ASB100 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set # CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM75 is not set @@ -494,9 +557,11 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_W83781D is not set @@ -506,10 +571,12 @@ CONFIG_I2C_MPC=y # # Other I2C Chip support # +# CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_SENSORS_RTC8564 is not set +# CONFIG_SENSORS_M41T00 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set @@ -538,7 +605,6 @@ CONFIG_I2C_MPC=y # Graphics support # # CONFIG_FB is not set -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set # # Sound @@ -548,13 +614,9 @@ CONFIG_I2C_MPC=y # # USB support # -# CONFIG_USB is not set CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information -# +# CONFIG_USB is not set # # USB Gadget Support @@ -585,6 +647,10 @@ CONFIG_JBD=y CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set + +# +# XFS support +# # CONFIG_XFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set @@ -646,7 +712,6 @@ CONFIG_NFS_FS=y # CONFIG_NFSD is not set CONFIG_ROOT_NFS=y CONFIG_LOCKD=y -# CONFIG_EXPORTFS is not set CONFIG_SUNRPC=y # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set @@ -698,7 +763,9 @@ CONFIG_CRC32=y # # Kernel hacking # +# CONFIG_PRINTK_TIME is not set # CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 # CONFIG_KGDB_CONSOLE is not set # CONFIG_SERIAL_TEXT_DEBUG is not set diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c index 11fb758d269f..c2a512735183 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c +++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include #include @@ -181,6 +182,7 @@ void __init mpc85xx_cds_init_IRQ(void) { bd_t *binfo = (bd_t *) __res; + int i; /* Determine the Physical Address of the OpenPIC regs */ phys_addr_t OpenPIC_PAddr = binfo->bi_immr_base + MPC85xx_OPENPIC_OFFSET; @@ -198,6 +200,13 @@ mpc85xx_cds_init_IRQ(void) */ openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET); + openpic_hookup_cascade(PIRQ0A, "82c59 cascade", i8259_irq); + + for (i = 0; i < NUM_8259_INTERRUPTS; i++) + irq_desc[i].handler = &i8259_pic; + + i8259_init(0); + #ifdef CONFIG_CPM2 /* Setup CPM2 PIC */ cpm2_init_IRQ(); @@ -231,7 +240,7 @@ mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) * interrupt on slot */ { { 0, 1, 2, 3 }, /* 16 - PMC */ - { 3, 0, 0, 0 }, /* 17 P2P (Tsi320) */ + { 0, 1, 2, 3 }, /* 17 P2P (Tsi320) */ { 0, 1, 2, 3 }, /* 18 - Slot 1 */ { 1, 2, 3, 0 }, /* 19 - Slot 2 */ { 2, 3, 0, 1 }, /* 20 - Slot 3 */ @@ -280,13 +289,135 @@ mpc85xx_exclude_device(u_char bus, u_char devfn) return PCIBIOS_DEVICE_NOT_FOUND; #endif /* We explicitly do not go past the Tundra 320 Bridge */ - if (bus == 1) + if ((bus == 1) && (PCI_SLOT(devfn) == ARCADIA_2ND_BRIDGE_IDSEL)) return PCIBIOS_DEVICE_NOT_FOUND; if ((bus == 0) && (PCI_SLOT(devfn) == ARCADIA_2ND_BRIDGE_IDSEL)) return PCIBIOS_DEVICE_NOT_FOUND; else return PCIBIOS_SUCCESSFUL; } + +void __init +mpc85xx_cds_enable_via(struct pci_controller *hose) +{ + u32 pci_class; + u16 vid, did; + + early_read_config_dword(hose, 0, 0x88, PCI_CLASS_REVISION, &pci_class); + if ((pci_class >> 16) != PCI_CLASS_BRIDGE_PCI) + return; + + /* Configure P2P so that we can reach bus 1 */ + early_write_config_byte(hose, 0, 0x88, PCI_PRIMARY_BUS, 0); + early_write_config_byte(hose, 0, 0x88, PCI_SECONDARY_BUS, 1); + early_write_config_byte(hose, 0, 0x88, PCI_SUBORDINATE_BUS, 0xff); + + early_read_config_word(hose, 1, 0x10, PCI_VENDOR_ID, &vid); + early_read_config_word(hose, 1, 0x10, PCI_DEVICE_ID, &did); + + if ((vid != PCI_VENDOR_ID_VIA) || + (did != PCI_DEVICE_ID_VIA_82C686)) + return; + + /* Enable USB and IDE functions */ + early_write_config_byte(hose, 1, 0x10, 0x48, 0x08); +} + +void __init +mpc85xx_cds_fixup_via(struct pci_controller *hose) +{ + u32 pci_class; + u16 vid, did; + + early_read_config_dword(hose, 0, 0x88, PCI_CLASS_REVISION, &pci_class); + if ((pci_class >> 16) != PCI_CLASS_BRIDGE_PCI) + return; + + /* + * Force the backplane P2P bridge to have a window + * open from 0x00000000-0x00001fff in PCI I/O space. + * This allows legacy I/O (i8259, etc) on the VIA + * southbridge to be accessed. + */ + early_write_config_byte(hose, 0, 0x88, PCI_IO_BASE, 0x00); + early_write_config_word(hose, 0, 0x88, PCI_IO_BASE_UPPER16, 0x0000); + early_write_config_byte(hose, 0, 0x88, PCI_IO_LIMIT, 0x10); + early_write_config_word(hose, 0, 0x88, PCI_IO_LIMIT_UPPER16, 0x0000); + + early_read_config_word(hose, 1, 0x10, PCI_VENDOR_ID, &vid); + early_read_config_word(hose, 1, 0x10, PCI_DEVICE_ID, &did); + if ((vid != PCI_VENDOR_ID_VIA) || + (did != PCI_DEVICE_ID_VIA_82C686)) + return; + + /* + * Since the P2P window was forced to cover the fixed + * legacy I/O addresses, it is necessary to manually + * place the base addresses for the IDE and USB functions + * within this window. + */ + /* Function 1, IDE */ + early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_0, 0x1ff8); + early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_1, 0x1ff4); + early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_2, 0x1fe8); + early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_3, 0x1fe4); + early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_4, 0x1fd0); + + /* Function 2, USB ports 0-1 */ + early_write_config_dword(hose, 1, 0x12, PCI_BASE_ADDRESS_4, 0x1fa0); + + /* Function 3, USB ports 2-3 */ + early_write_config_dword(hose, 1, 0x13, PCI_BASE_ADDRESS_4, 0x1f80); + + /* Function 5, Power Management */ + early_write_config_dword(hose, 1, 0x15, PCI_BASE_ADDRESS_0, 0x1e00); + early_write_config_dword(hose, 1, 0x15, PCI_BASE_ADDRESS_1, 0x1dfc); + early_write_config_dword(hose, 1, 0x15, PCI_BASE_ADDRESS_2, 0x1df8); + + /* Function 6, AC97 Interface */ + early_write_config_dword(hose, 1, 0x16, PCI_BASE_ADDRESS_0, 0x1c00); +} + +void __init +mpc85xx_cds_pcibios_fixup(void) +{ + struct pci_dev *dev = NULL; + u_char c; + + if ((dev = pci_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_82C586_1, NULL))) { + /* + * U-Boot does not set the enable bits + * for the IDE device. Force them on here. + */ + pci_read_config_byte(dev, 0x40, &c); + c |= 0x03; /* IDE: Chip Enable Bits */ + pci_write_config_byte(dev, 0x40, c); + + /* + * Since only primary interface works, force the + * IDE function to standard primary IDE interrupt + * w/ 8259 offset + */ + dev->irq = 14; + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); + } + + /* + * Force legacy USB interrupt routing + */ + if ((dev = pci_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_82C586_2, NULL))) { + dev->irq = 10; + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 10); + } + + if ((dev = pci_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_82C586_2, dev))) { + dev->irq = 11; + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11); + } +} #endif /* CONFIG_PCI */ TODC_ALLOC(); @@ -308,6 +439,9 @@ mpc85xx_cds_setup_arch(void) printk("mpc85xx_cds_setup_arch\n"); + /* VIA IDE configuration */ + ppc_md.pcibios_fixup = mpc85xx_cds_pcibios_fixup; + #ifdef CONFIG_CPM2 cpm2_reset(); #endif diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.h b/arch/ppc/platforms/85xx/mpc85xx_cds_common.h index 7627d77504bd..12b292c6ae32 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.h +++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.h @@ -77,4 +77,7 @@ #define MPC85XX_PCI2_IO_SIZE 0x01000000 +#define NR_8259_INTS 16 +#define CPM_IRQ_OFFSET NR_8259_INTS + #endif /* __MACH_MPC85XX_CDS_H__ */ diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile index dd418ea3426c..46cbb3e39d4c 100644 --- a/arch/ppc/syslib/Makefile +++ b/arch/ppc/syslib/Makefile @@ -97,7 +97,7 @@ obj-$(CONFIG_MPC10X_OPENPIC) += open_pic.o obj-$(CONFIG_40x) += dcr.o obj-$(CONFIG_BOOKE) += dcr.o obj-$(CONFIG_85xx) += open_pic.o ppc85xx_common.o ppc85xx_setup.o \ - ppc_sys.o mpc85xx_sys.o \ + ppc_sys.o i8259.o mpc85xx_sys.o \ mpc85xx_devices.o ifeq ($(CONFIG_85xx),y) obj-$(CONFIG_PCI) += indirect_pci.o pci_auto.o diff --git a/arch/ppc/syslib/ppc85xx_setup.c b/arch/ppc/syslib/ppc85xx_setup.c index 152c3ef1312a..f3277f469e78 100644 --- a/arch/ppc/syslib/ppc85xx_setup.c +++ b/arch/ppc/syslib/ppc85xx_setup.c @@ -132,6 +132,12 @@ mpc85xx_halt(void) } #ifdef CONFIG_PCI + +#if defined(CONFIG_MPC8555_CDS) +extern void mpc85xx_cds_enable_via(struct pci_controller *hose); +extern void mpc85xx_cds_fixup_via(struct pci_controller *hose); +#endif + static void __init mpc85xx_setup_pci1(struct pci_controller *hose) { @@ -302,8 +308,18 @@ mpc85xx_setup_hose(void) ppc_md.pci_exclude_device = mpc85xx_exclude_device; +#if defined(CONFIG_MPC8555_CDS) + /* Pre pciauto_bus_scan VIA init */ + mpc85xx_cds_enable_via(hose_a); +#endif + hose_a->last_busno = pciauto_bus_scan(hose_a, hose_a->first_busno); +#if defined(CONFIG_MPC8555_CDS) + /* Post pciauto_bus_scan VIA fixup */ + mpc85xx_cds_fixup_via(hose_a); +#endif + #ifdef CONFIG_85xx_PCI2 hose_b = pcibios_alloc_controller(); -- cgit v1.2.3 From a6dbba77a9d4b47c60d60c4f07fa79b3ca93a1d5 Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Sat, 28 May 2005 15:52:09 -0700 Subject: [PATCH] ppc32: Support for 82xx PQII on-chip PCI bridge This patch adds on-chip PCI bridge support for the PQ2 family. The incomplete existent code is updated with interrupt handling stuff and board-specific bits for 8272ADS and PQ2FADS; the related files were renamed (from m8260_pci to m82xx_pci) to be of more generic fashion. This is tested with 8266ADS and 8272ADS, should work on PQ2FADS as well. Signed-off-by: Vitaly Bordug Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/Kconfig | 4 +- arch/ppc/platforms/pq2ads.h | 41 ++-- arch/ppc/syslib/Makefile | 2 +- arch/ppc/syslib/m8260_pci.c | 193 ------------------ arch/ppc/syslib/m8260_pci.h | 76 ------- arch/ppc/syslib/m8260_pci_erratum9.c | 10 +- arch/ppc/syslib/m8260_setup.c | 11 +- arch/ppc/syslib/m82xx_pci.c | 383 +++++++++++++++++++++++++++++++++++ arch/ppc/syslib/m82xx_pci.h | 92 +++++++++ include/asm-ppc/cpm2.h | 46 +++++ include/asm-ppc/m8260_pci.h | 1 + include/asm-ppc/mpc8260.h | 2 +- 12 files changed, 558 insertions(+), 303 deletions(-) delete mode 100644 arch/ppc/syslib/m8260_pci.c delete mode 100644 arch/ppc/syslib/m8260_pci.h create mode 100644 arch/ppc/syslib/m82xx_pci.c create mode 100644 arch/ppc/syslib/m82xx_pci.h (limited to 'arch') diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index 600f23d7fd33..6e6377a69d5b 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -1143,12 +1143,12 @@ config PCI_QSPAN config PCI_8260 bool - depends on PCI && 8260 && !8272 + depends on PCI && 8260 default y config 8260_PCI9 bool " Enable workaround for MPC826x erratum PCI 9" - depends on PCI_8260 + depends on PCI_8260 && !ADS8272 default y choice diff --git a/arch/ppc/platforms/pq2ads.h b/arch/ppc/platforms/pq2ads.h index cf5e5dd06d63..067d9a5aebc1 100644 --- a/arch/ppc/platforms/pq2ads.h +++ b/arch/ppc/platforms/pq2ads.h @@ -49,10 +49,10 @@ /* PCI interrupt controller */ #define PCI_INT_STAT_REG 0xF8200000 #define PCI_INT_MASK_REG 0xF8200004 -#define PIRQA (NR_SIU_INTS + 0) -#define PIRQB (NR_SIU_INTS + 1) -#define PIRQC (NR_SIU_INTS + 2) -#define PIRQD (NR_SIU_INTS + 3) +#define PIRQA (NR_CPM_INTS + 0) +#define PIRQB (NR_CPM_INTS + 1) +#define PIRQC (NR_CPM_INTS + 2) +#define PIRQD (NR_CPM_INTS + 3) /* * PCI memory map definitions for MPC8266ADS-PCI. @@ -68,28 +68,23 @@ * 0x00000000-0x1FFFFFFF 0x00000000-0x1FFFFFFF MPC8266 local memory */ -/* window for a PCI master to access MPC8266 memory */ -#define PCI_SLV_MEM_LOCAL 0x00000000 /* Local base */ -#define PCI_SLV_MEM_BUS 0x00000000 /* PCI base */ +/* All the other PCI memory map definitions reside at syslib/m82xx_pci.h + Here we should redefine what is unique for this board */ +#define M82xx_PCI_SLAVE_MEM_LOCAL 0x00000000 /* Local base */ +#define M82xx_PCI_SLAVE_MEM_BUS 0x00000000 /* PCI base */ +#define M82xx_PCI_SLAVE_MEM_SIZE 0x10000000 /* 256 Mb */ -/* window for the processor to access PCI memory with prefetching */ -#define PCI_MSTR_MEM_LOCAL 0x80000000 /* Local base */ -#define PCI_MSTR_MEM_BUS 0x80000000 /* PCI base */ -#define PCI_MSTR_MEM_SIZE 0x20000000 /* 512MB */ +#define M82xx_PCI_SLAVE_SEC_WND_SIZE ~(0x40000000 - 1U) /* 2 x 512Mb */ +#define M82xx_PCI_SLAVE_SEC_WND_BASE 0x80000000 /* PCI Memory base */ -/* window for the processor to access PCI memory without prefetching */ -#define PCI_MSTR_MEMIO_LOCAL 0xA0000000 /* Local base */ -#define PCI_MSTR_MEMIO_BUS 0xA0000000 /* PCI base */ -#define PCI_MSTR_MEMIO_SIZE 0x20000000 /* 512MB */ +#if defined(CONFIG_ADS8272) +#define PCI_INT_TO_SIU SIU_INT_IRQ2 +#elif defined(CONFIG_PQ2FADS) +#define PCI_INT_TO_SIU SIU_INT_IRQ6 +#else +#warning PCI Bridge will be without interrupts support +#endif -/* window for the processor to access PCI I/O */ -#define PCI_MSTR_IO_LOCAL 0xF4000000 /* Local base */ -#define PCI_MSTR_IO_BUS 0x00000000 /* PCI base */ -#define PCI_MSTR_IO_SIZE 0x04000000 /* 64MB */ - -#define _IO_BASE PCI_MSTR_IO_LOCAL -#define _ISA_MEM_BASE PCI_MSTR_MEMIO_LOCAL -#define PCI_DRAM_OFFSET PCI_SLV_MEM_BUS #endif /* CONFIG_PCI */ #endif /* __MACH_ADS8260_DEFS */ diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile index 46cbb3e39d4c..96acf85800d4 100644 --- a/arch/ppc/syslib/Makefile +++ b/arch/ppc/syslib/Makefile @@ -81,7 +81,7 @@ obj-$(CONFIG_SBC82xx) += todc_time.o obj-$(CONFIG_SPRUCE) += cpc700_pic.o indirect_pci.o pci_auto.o \ todc_time.o obj-$(CONFIG_8260) += m8260_setup.o -obj-$(CONFIG_PCI_8260) += m8260_pci.o indirect_pci.o +obj-$(CONFIG_PCI_8260) += m82xx_pci.o indirect_pci.o pci_auto.o obj-$(CONFIG_8260_PCI9) += m8260_pci_erratum9.o obj-$(CONFIG_CPM2) += cpm2_common.o cpm2_pic.o ifeq ($(CONFIG_PPC_GEN550),y) diff --git a/arch/ppc/syslib/m8260_pci.c b/arch/ppc/syslib/m8260_pci.c deleted file mode 100644 index 057cc3f8ff37..000000000000 --- a/arch/ppc/syslib/m8260_pci.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2004 Red Hat, Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "m8260_pci.h" - - -/* PCI bus configuration registers. - */ - -static void __init m8260_setup_pci(struct pci_controller *hose) -{ - volatile cpm2_map_t *immap = cpm2_immr; - unsigned long pocmr; - u16 tempShort; - -#ifndef CONFIG_ATC /* already done in U-Boot */ - /* - * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]), - * and local bus for PCI (SIUMCR [LBPC]). - */ - immap->im_siu_conf.siu_82xx.sc_siumcr = 0x00640000; -#endif - - /* Make PCI lowest priority */ - /* Each 4 bits is a device bus request and the MS 4bits - is highest priority */ - /* Bus 4bit value - --- ---------- - CPM high 0b0000 - CPM middle 0b0001 - CPM low 0b0010 - PCI reguest 0b0011 - Reserved 0b0100 - Reserved 0b0101 - Internal Core 0b0110 - External Master 1 0b0111 - External Master 2 0b1000 - External Master 3 0b1001 - The rest are reserved */ - immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x61207893; - - /* Park bus on core while modifying PCI Bus accesses */ - immap->im_siu_conf.siu_82xx.sc_ppc_acr = 0x6; - - /* - * Set up master window that allows the CPU to access PCI space. This - * window is set up using the first SIU PCIBR registers. - */ - immap->im_memctl.memc_pcimsk0 = MPC826x_PCI_MASK; - immap->im_memctl.memc_pcibr0 = MPC826x_PCI_BASE | PCIBR_ENABLE; - - /* Disable machine check on no response or target abort */ - immap->im_pci.pci_emr = cpu_to_le32(0x1fe7); - /* Release PCI RST (by default the PCI RST signal is held low) */ - immap->im_pci.pci_gcr = cpu_to_le32(PCIGCR_PCI_BUS_EN); - - /* give it some time */ - mdelay(1); - - /* - * Set up master window that allows the CPU to access PCI Memory (prefetch) - * space. This window is set up using the first set of Outbound ATU registers. - */ - immap->im_pci.pci_potar0 = cpu_to_le32(MPC826x_PCI_LOWER_MEM >> 12); - immap->im_pci.pci_pobar0 = cpu_to_le32((MPC826x_PCI_LOWER_MEM - MPC826x_PCI_MEM_OFFSET) >> 12); - pocmr = ((MPC826x_PCI_UPPER_MEM - MPC826x_PCI_LOWER_MEM) >> 12) ^ 0xfffff; - immap->im_pci.pci_pocmr0 = cpu_to_le32(pocmr | POCMR_ENABLE | POCMR_PREFETCH_EN); - - /* - * Set up master window that allows the CPU to access PCI Memory (non-prefetch) - * space. This window is set up using the second set of Outbound ATU registers. - */ - immap->im_pci.pci_potar1 = cpu_to_le32(MPC826x_PCI_LOWER_MMIO >> 12); - immap->im_pci.pci_pobar1 = cpu_to_le32((MPC826x_PCI_LOWER_MMIO - MPC826x_PCI_MMIO_OFFSET) >> 12); - pocmr = ((MPC826x_PCI_UPPER_MMIO - MPC826x_PCI_LOWER_MMIO) >> 12) ^ 0xfffff; - immap->im_pci.pci_pocmr1 = cpu_to_le32(pocmr | POCMR_ENABLE); - - /* - * Set up master window that allows the CPU to access PCI IO space. This window - * is set up using the third set of Outbound ATU registers. - */ - immap->im_pci.pci_potar2 = cpu_to_le32(MPC826x_PCI_IO_BASE >> 12); - immap->im_pci.pci_pobar2 = cpu_to_le32(MPC826x_PCI_LOWER_IO >> 12); - pocmr = ((MPC826x_PCI_UPPER_IO - MPC826x_PCI_LOWER_IO) >> 12) ^ 0xfffff; - immap->im_pci.pci_pocmr2 = cpu_to_le32(pocmr | POCMR_ENABLE | POCMR_PCI_IO); - - /* - * Set up slave window that allows PCI masters to access MPC826x local memory. - * This window is set up using the first set of Inbound ATU registers - */ - - immap->im_pci.pci_pitar0 = cpu_to_le32(MPC826x_PCI_SLAVE_MEM_LOCAL >> 12); - immap->im_pci.pci_pibar0 = cpu_to_le32(MPC826x_PCI_SLAVE_MEM_BUS >> 12); - pocmr = ((MPC826x_PCI_SLAVE_MEM_SIZE-1) >> 12) ^ 0xfffff; - immap->im_pci.pci_picmr0 = cpu_to_le32(pocmr | PICMR_ENABLE | PICMR_PREFETCH_EN); - - /* See above for description - puts PCI request as highest priority */ - immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x03124567; - - /* Park the bus on the PCI */ - immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI; - - /* Host mode - specify the bridge as a host-PCI bridge */ - early_write_config_word(hose, 0, 0, PCI_CLASS_DEVICE, PCI_CLASS_BRIDGE_HOST); - - /* Enable the host bridge to be a master on the PCI bus, and to act as a PCI memory target */ - early_read_config_word(hose, 0, 0, PCI_COMMAND, &tempShort); - early_write_config_word(hose, 0, 0, PCI_COMMAND, - tempShort | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); -} - -void __init m8260_find_bridges(void) -{ - extern int pci_assign_all_busses; - struct pci_controller * hose; - - pci_assign_all_busses = 1; - - hose = pcibios_alloc_controller(); - - if (!hose) - return; - - ppc_md.pci_swizzle = common_swizzle; - - hose->first_busno = 0; - hose->bus_offset = 0; - hose->last_busno = 0xff; - - setup_m8260_indirect_pci(hose, - (unsigned long)&cpm2_immr->im_pci.pci_cfg_addr, - (unsigned long)&cpm2_immr->im_pci.pci_cfg_data); - - m8260_setup_pci(hose); - hose->pci_mem_offset = MPC826x_PCI_MEM_OFFSET; - - hose->io_base_virt = ioremap(MPC826x_PCI_IO_BASE, - MPC826x_PCI_IO_SIZE); - isa_io_base = (unsigned long) hose->io_base_virt; - - /* setup resources */ - pci_init_resource(&hose->mem_resources[0], - MPC826x_PCI_LOWER_MEM, - MPC826x_PCI_UPPER_MEM, - IORESOURCE_MEM|IORESOURCE_PREFETCH, "PCI prefetchable memory"); - - pci_init_resource(&hose->mem_resources[1], - MPC826x_PCI_LOWER_MMIO, - MPC826x_PCI_UPPER_MMIO, - IORESOURCE_MEM, "PCI memory"); - - pci_init_resource(&hose->io_resource, - MPC826x_PCI_LOWER_IO, - MPC826x_PCI_UPPER_IO, - IORESOURCE_IO, "PCI I/O"); -} diff --git a/arch/ppc/syslib/m8260_pci.h b/arch/ppc/syslib/m8260_pci.h deleted file mode 100644 index d1352120acd7..000000000000 --- a/arch/ppc/syslib/m8260_pci.h +++ /dev/null @@ -1,76 +0,0 @@ - -#ifndef _PPC_KERNEL_M8260_PCI_H -#define _PPC_KERNEL_M8260_PCI_H - -#include - -/* - * Local->PCI map (from CPU) controlled by - * MPC826x master window - * - * 0x80000000 - 0xBFFFFFFF Total CPU2PCI space PCIBR0 - * - * 0x80000000 - 0x9FFFFFFF PCI Mem with prefetch (Outbound ATU #1) - * 0xA0000000 - 0xAFFFFFFF PCI Mem w/o prefetch (Outbound ATU #2) - * 0xB0000000 - 0xB0FFFFFF 32-bit PCI IO (Outbound ATU #3) - * - * PCI->Local map (from PCI) - * MPC826x slave window controlled by - * - * 0x00000000 - 0x07FFFFFF MPC826x local memory (Inbound ATU #1) - */ - -/* - * Slave window that allows PCI masters to access MPC826x local memory. - * This window is set up using the first set of Inbound ATU registers - */ - -#ifndef MPC826x_PCI_SLAVE_MEM_LOCAL -#define MPC826x_PCI_SLAVE_MEM_LOCAL (((struct bd_info *)__res)->bi_memstart) -#define MPC826x_PCI_SLAVE_MEM_BUS (((struct bd_info *)__res)->bi_memstart) -#define MPC826x_PCI_SLAVE_MEM_SIZE (((struct bd_info *)__res)->bi_memsize) -#endif - -/* - * This is the window that allows the CPU to access PCI address space. - * It will be setup with the SIU PCIBR0 register. All three PCI master - * windows, which allow the CPU to access PCI prefetch, non prefetch, - * and IO space (see below), must all fit within this window. - */ -#ifndef MPC826x_PCI_BASE -#define MPC826x_PCI_BASE 0x80000000 -#define MPC826x_PCI_MASK 0xc0000000 -#endif - -#ifndef MPC826x_PCI_LOWER_MEM -#define MPC826x_PCI_LOWER_MEM 0x80000000 -#define MPC826x_PCI_UPPER_MEM 0x9fffffff -#define MPC826x_PCI_MEM_OFFSET 0x00000000 -#endif - -#ifndef MPC826x_PCI_LOWER_MMIO -#define MPC826x_PCI_LOWER_MMIO 0xa0000000 -#define MPC826x_PCI_UPPER_MMIO 0xafffffff -#define MPC826x_PCI_MMIO_OFFSET 0x00000000 -#endif - -#ifndef MPC826x_PCI_LOWER_IO -#define MPC826x_PCI_LOWER_IO 0x00000000 -#define MPC826x_PCI_UPPER_IO 0x00ffffff -#define MPC826x_PCI_IO_BASE 0xb0000000 -#define MPC826x_PCI_IO_SIZE 0x01000000 -#endif - -#ifndef _IO_BASE -#define _IO_BASE isa_io_base -#endif - -#ifdef CONFIG_8260_PCI9 -struct pci_controller; -extern void setup_m8260_indirect_pci(struct pci_controller* hose, - u32 cfg_addr, u32 cfg_data); -#else -#define setup_m8260_indirect_pci setup_indirect_pci -#endif - -#endif /* _PPC_KERNEL_M8260_PCI_H */ diff --git a/arch/ppc/syslib/m8260_pci_erratum9.c b/arch/ppc/syslib/m8260_pci_erratum9.c index 9c0582d639e0..1dc7e4e1d491 100644 --- a/arch/ppc/syslib/m8260_pci_erratum9.c +++ b/arch/ppc/syslib/m8260_pci_erratum9.c @@ -31,7 +31,7 @@ #include #include -#include "m8260_pci.h" +#include "m82xx_pci.h" #ifdef CONFIG_8260_PCI9 /*#include */ /* included in asm/io.h */ @@ -248,11 +248,11 @@ EXPORT_SYMBOL(idma_pci9_read_le); static inline int is_pci_mem(unsigned long addr) { - if (addr >= MPC826x_PCI_LOWER_MMIO && - addr <= MPC826x_PCI_UPPER_MMIO) + if (addr >= M82xx_PCI_LOWER_MMIO && + addr <= M82xx_PCI_UPPER_MMIO) return 1; - if (addr >= MPC826x_PCI_LOWER_MEM && - addr <= MPC826x_PCI_UPPER_MEM) + if (addr >= M82xx_PCI_LOWER_MEM && + addr <= M82xx_PCI_UPPER_MEM) return 1; return 0; } diff --git a/arch/ppc/syslib/m8260_setup.c b/arch/ppc/syslib/m8260_setup.c index 23ea3f694de2..fda75d79050c 100644 --- a/arch/ppc/syslib/m8260_setup.c +++ b/arch/ppc/syslib/m8260_setup.c @@ -34,7 +34,8 @@ unsigned char __res[sizeof(bd_t)]; extern void cpm2_reset(void); -extern void m8260_find_bridges(void); +extern void pq2_find_bridges(void); +extern void pq2pci_init_irq(void); extern void idma_pci9_init(void); /* Place-holder for board-specific init */ @@ -56,7 +57,7 @@ m8260_setup_arch(void) idma_pci9_init(); #endif #ifdef CONFIG_PCI_8260 - m8260_find_bridges(); + pq2_find_bridges(); #endif #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start) @@ -173,6 +174,12 @@ m8260_init_IRQ(void) * in case the boot rom changed something on us. */ cpm2_immr->im_intctl.ic_siprr = 0x05309770; + +#if defined(CONFIG_PCI) && (defined(CONFIG_ADS8272) || defined(CONFIG_PQ2FADS)) + /* Initialize stuff for the 82xx CPLD IC and install demux */ + pq2pci_init_irq(); +#endif + } /* diff --git a/arch/ppc/syslib/m82xx_pci.c b/arch/ppc/syslib/m82xx_pci.c new file mode 100644 index 000000000000..5e7a7edcea74 --- /dev/null +++ b/arch/ppc/syslib/m82xx_pci.c @@ -0,0 +1,383 @@ +/* + * + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 Red Hat, Inc. + * + * 2005 (c) MontaVista Software, Inc. + * Vitaly Bordug + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "m82xx_pci.h" + +/* + * Interrupt routing + */ + +static inline int +pq2pci_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) +{ + static char pci_irq_table[][4] = + /* + * PCI IDSEL/INTPIN->INTLINE + * A B C D + */ + { + { PIRQA, PIRQB, PIRQC, PIRQD }, /* IDSEL 22 - PCI slot 0 */ + { PIRQD, PIRQA, PIRQB, PIRQC }, /* IDSEL 23 - PCI slot 1 */ + { PIRQC, PIRQD, PIRQA, PIRQB }, /* IDSEL 24 - PCI slot 2 */ + }; + + const long min_idsel = 22, max_idsel = 24, irqs_per_slot = 4; + return PCI_IRQ_TABLE_LOOKUP; +} + +static void +pq2pci_mask_irq(unsigned int irq) +{ + int bit = irq - NR_CPM_INTS; + + *(volatile unsigned long *) PCI_INT_MASK_REG |= (1 << (31 - bit)); + return; +} + +static void +pq2pci_unmask_irq(unsigned int irq) +{ + int bit = irq - NR_CPM_INTS; + + *(volatile unsigned long *) PCI_INT_MASK_REG &= ~(1 << (31 - bit)); + return; +} + +static void +pq2pci_mask_and_ack(unsigned int irq) +{ + int bit = irq - NR_CPM_INTS; + + *(volatile unsigned long *) PCI_INT_MASK_REG |= (1 << (31 - bit)); + return; +} + +static void +pq2pci_end_irq(unsigned int irq) +{ + int bit = irq - NR_CPM_INTS; + + *(volatile unsigned long *) PCI_INT_MASK_REG &= ~(1 << (31 - bit)); + return; +} + +struct hw_interrupt_type pq2pci_ic = { + "PQ2 PCI", + NULL, + NULL, + pq2pci_unmask_irq, + pq2pci_mask_irq, + pq2pci_mask_and_ack, + pq2pci_end_irq, + 0 +}; + +static irqreturn_t +pq2pci_irq_demux(int irq, void *dev_id, struct pt_regs *regs) +{ + unsigned long stat, mask, pend; + int bit; + + for(;;) { + stat = *(volatile unsigned long *) PCI_INT_STAT_REG; + mask = *(volatile unsigned long *) PCI_INT_MASK_REG; + pend = stat & ~mask & 0xf0000000; + if (!pend) + break; + for (bit = 0; pend != 0; ++bit, pend <<= 1) { + if (pend & 0x80000000) + __do_IRQ(NR_CPM_INTS + bit, regs); + } + } + + return IRQ_HANDLED; +} + +static struct irqaction pq2pci_irqaction = { + .handler = pq2pci_irq_demux, + .flags = SA_INTERRUPT, + .mask = CPU_MASK_NONE, + .name = "PQ2 PCI cascade", +}; + + +void +pq2pci_init_irq(void) +{ + int irq; + volatile cpm2_map_t *immap = cpm2_immr; +#if defined CONFIG_ADS8272 + /* configure chip select for PCI interrupt controller */ + immap->im_memctl.memc_br3 = PCI_INT_STAT_REG | 0x00001801; + immap->im_memctl.memc_or3 = 0xffff8010; +#elif defined CONFIG_PQ2FADS + immap->im_memctl.memc_br8 = PCI_INT_STAT_REG | 0x00001801; + immap->im_memctl.memc_or8 = 0xffff8010; +#endif + for (irq = NR_CPM_INTS; irq < NR_CPM_INTS + 4; irq++) + irq_desc[irq].handler = &pq2pci_ic; + + /* make PCI IRQ level sensitive */ + immap->im_intctl.ic_siexr &= + ~(1 << (14 - (PCI_INT_TO_SIU - SIU_INT_IRQ1))); + + /* mask all PCI interrupts */ + *(volatile unsigned long *) PCI_INT_MASK_REG |= 0xfff00000; + + /* install the demultiplexer for the PCI cascade interrupt */ + setup_irq(PCI_INT_TO_SIU, &pq2pci_irqaction); + return; +} + +static int +pq2pci_exclude_device(u_char bus, u_char devfn) +{ + return PCIBIOS_SUCCESSFUL; +} + +/* PCI bus configuration registers. + */ +static void +pq2ads_setup_pci(struct pci_controller *hose) +{ + __u32 val; + volatile cpm2_map_t *immap = cpm2_immr; + bd_t* binfo = (bd_t*) __res; + u32 sccr = immap->im_clkrst.car_sccr; + uint pci_div,freq,time; + /* PCI int lowest prio */ + /* Each 4 bits is a device bus request and the MS 4bits + is highest priority */ + /* Bus 4bit value + --- ---------- + CPM high 0b0000 + CPM middle 0b0001 + CPM low 0b0010 + PCI reguest 0b0011 + Reserved 0b0100 + Reserved 0b0101 + Internal Core 0b0110 + External Master 1 0b0111 + External Master 2 0b1000 + External Master 3 0b1001 + The rest are reserved + */ + immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x61207893; + /* park bus on core */ + immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_CORE; + /* + * Set up master windows that allow the CPU to access PCI space. These + * windows are set up using the two SIU PCIBR registers. + */ + + immap->im_memctl.memc_pcimsk0 = M82xx_PCI_PRIM_WND_SIZE; + immap->im_memctl.memc_pcibr0 = M82xx_PCI_PRIM_WND_BASE | PCIBR_ENABLE; + +#ifdef M82xx_PCI_SEC_WND_SIZE + immap->im_memctl.memc_pcimsk1 = M82xx_PCI_SEC_WND_SIZE; + immap->im_memctl.memc_pcibr1 = M82xx_PCI_SEC_WND_BASE | PCIBR_ENABLE; +#endif + +#if defined CONFIG_ADS8272 + immap->im_siu_conf.siu_82xx.sc_siumcr = + (immap->im_siu_conf.siu_82xx.sc_siumcr & + ~(SIUMCR_BBD | SIUMCR_ESE | SIUMCR_PBSE | + SIUMCR_CDIS | SIUMCR_DPPC11 | SIUMCR_L2CPC11 | + SIUMCR_LBPC11 | SIUMCR_APPC11 | + SIUMCR_CS10PC11 | SIUMCR_BCTLC11 | SIUMCR_MMR11)) | + SIUMCR_DPPC11 | SIUMCR_L2CPC01 | SIUMCR_LBPC00 | + SIUMCR_APPC10 | SIUMCR_CS10PC00 | + SIUMCR_BCTLC00 | SIUMCR_MMR11 ; + +#elif defined CONFIG_PQ2FADS + /* + * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]), + * and local bus for PCI (SIUMCR [LBPC]). + */ + immap->im_siu_conf.siu_82xx.sc_siumcr = (immap->im_siu_conf.sc_siumcr & + ~(SIUMCR_L2PC11 | SIUMCR_LBPC11 | SIUMCR_CS10PC11 | SIUMCR_APPC11) | + SIUMCR_BBD | SIUMCR_LBPC01 | SIUMCR_DPPC11 | SIUMCR_APPC10; +#endif + /* Enable PCI */ + immap->im_pci.pci_gcr = cpu_to_le32(PCIGCR_PCI_BUS_EN); + + pci_div = ( (sccr & SCCR_PCI_MODCK) ? 2 : 1) * + ( ( (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT) + 1); + freq = (uint)((2*binfo->bi_cpmfreq)/(pci_div)); + time = (int)666666/freq; + /* due to PCI Local Bus spec, some devices needs to wait such a long + time after RST deassertion. More specifically, 0.508s for 66MHz & twice more for 33 */ + printk("%s: The PCI bus is %d Mhz.\nWaiting %s after deasserting RST...\n",__FILE__,freq, + (time==1) ? "0.5 seconds":"1 second" ); + + { + int i; + for(i=0;i<(500*time);i++) + udelay(1000); + } + + /* setup ATU registers */ + immap->im_pci.pci_pocmr0 = cpu_to_le32(POCMR_ENABLE | POCMR_PCI_IO | + ((~(M82xx_PCI_IO_SIZE - 1U)) >> POTA_ADDR_SHIFT)); + immap->im_pci.pci_potar0 = cpu_to_le32(M82xx_PCI_LOWER_IO >> POTA_ADDR_SHIFT); + immap->im_pci.pci_pobar0 = cpu_to_le32(M82xx_PCI_IO_BASE >> POTA_ADDR_SHIFT); + + /* Set-up non-prefetchable window */ + immap->im_pci.pci_pocmr1 = cpu_to_le32(POCMR_ENABLE | ((~(M82xx_PCI_MMIO_SIZE-1U)) >> POTA_ADDR_SHIFT)); + immap->im_pci.pci_potar1 = cpu_to_le32(M82xx_PCI_LOWER_MMIO >> POTA_ADDR_SHIFT); + immap->im_pci.pci_pobar1 = cpu_to_le32((M82xx_PCI_LOWER_MMIO - M82xx_PCI_MMIO_OFFSET) >> POTA_ADDR_SHIFT); + + /* Set-up prefetchable window */ + immap->im_pci.pci_pocmr2 = cpu_to_le32(POCMR_ENABLE |POCMR_PREFETCH_EN | + (~(M82xx_PCI_MEM_SIZE-1U) >> POTA_ADDR_SHIFT)); + immap->im_pci.pci_potar2 = cpu_to_le32(M82xx_PCI_LOWER_MEM >> POTA_ADDR_SHIFT); + immap->im_pci.pci_pobar2 = cpu_to_le32((M82xx_PCI_LOWER_MEM - M82xx_PCI_MEM_OFFSET) >> POTA_ADDR_SHIFT); + + /* Inbound transactions from PCI memory space */ + immap->im_pci.pci_picmr0 = cpu_to_le32(PICMR_ENABLE | PICMR_PREFETCH_EN | + ((~(M82xx_PCI_SLAVE_MEM_SIZE-1U)) >> PITA_ADDR_SHIFT)); + immap->im_pci.pci_pibar0 = cpu_to_le32(M82xx_PCI_SLAVE_MEM_BUS >> PITA_ADDR_SHIFT); + immap->im_pci.pci_pitar0 = cpu_to_le32(M82xx_PCI_SLAVE_MEM_LOCAL>> PITA_ADDR_SHIFT); + +#if defined CONFIG_ADS8272 + /* PCI int highest prio */ + immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x01236745; +#elif defined CONFIG_PQ2FADS + immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x03124567; +#endif + /* park bus on PCI */ + immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI; + + /* Enable bus mastering and inbound memory transactions */ + early_read_config_dword(hose, hose->first_busno, 0, PCI_COMMAND, &val); + val &= 0xffff0000; + val |= PCI_COMMAND_MEMORY|PCI_COMMAND_MASTER; + early_write_config_dword(hose, hose->first_busno, 0, PCI_COMMAND, val); + +} + +void __init pq2_find_bridges(void) +{ + extern int pci_assign_all_busses; + struct pci_controller * hose; + int host_bridge; + + pci_assign_all_busses = 1; + + hose = pcibios_alloc_controller(); + + if (!hose) + return; + + ppc_md.pci_swizzle = common_swizzle; + + hose->first_busno = 0; + hose->bus_offset = 0; + hose->last_busno = 0xff; + +#ifdef CONFIG_ADS8272 + hose->set_cfg_type = 1; +#endif + + setup_m8260_indirect_pci(hose, + (unsigned long)&cpm2_immr->im_pci.pci_cfg_addr, + (unsigned long)&cpm2_immr->im_pci.pci_cfg_data); + + /* Make sure it is a supported bridge */ + early_read_config_dword(hose, + 0, + PCI_DEVFN(0,0), + PCI_VENDOR_ID, + &host_bridge); + switch (host_bridge) { + case PCI_DEVICE_ID_MPC8265: + break; + case PCI_DEVICE_ID_MPC8272: + break; + default: + printk("Attempting to use unrecognized host bridge ID" + " 0x%08x.\n", host_bridge); + break; + } + + pq2ads_setup_pci(hose); + + hose->io_space.start = M82xx_PCI_LOWER_IO; + hose->io_space.end = M82xx_PCI_UPPER_IO; + hose->mem_space.start = M82xx_PCI_LOWER_MEM; + hose->mem_space.end = M82xx_PCI_UPPER_MMIO; + hose->pci_mem_offset = M82xx_PCI_MEM_OFFSET; + + isa_io_base = + (unsigned long) ioremap(M82xx_PCI_IO_BASE, + M82xx_PCI_IO_SIZE); + hose->io_base_virt = (void *) isa_io_base; + + /* setup resources */ + pci_init_resource(&hose->mem_resources[0], + M82xx_PCI_LOWER_MEM, + M82xx_PCI_UPPER_MEM, + IORESOURCE_MEM|IORESOURCE_PREFETCH, "PCI prefetchable memory"); + + pci_init_resource(&hose->mem_resources[1], + M82xx_PCI_LOWER_MMIO, + M82xx_PCI_UPPER_MMIO, + IORESOURCE_MEM, "PCI memory"); + + pci_init_resource(&hose->io_resource, + M82xx_PCI_LOWER_IO, + M82xx_PCI_UPPER_IO, + IORESOURCE_IO | 1, "PCI I/O"); + + ppc_md.pci_exclude_device = pq2pci_exclude_device; + hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); + + ppc_md.pci_map_irq = pq2pci_map_irq; + ppc_md.pcibios_fixup = NULL; + ppc_md.pcibios_fixup_bus = NULL; + +} diff --git a/arch/ppc/syslib/m82xx_pci.h b/arch/ppc/syslib/m82xx_pci.h new file mode 100644 index 000000000000..924f73f8e595 --- /dev/null +++ b/arch/ppc/syslib/m82xx_pci.h @@ -0,0 +1,92 @@ + +#ifndef _PPC_KERNEL_M82XX_PCI_H +#define _PPC_KERNEL_M82XX_PCI_H + +#include +/* + * Local->PCI map (from CPU) controlled by + * MPC826x master window + * + * 0xF6000000 - 0xF7FFFFFF IO space + * 0x80000000 - 0xBFFFFFFF CPU2PCI memory space PCIBR0 + * + * 0x80000000 - 0x9FFFFFFF PCI Mem with prefetch (Outbound ATU #1) + * 0xA0000000 - 0xBFFFFFFF PCI Mem w/o prefetch (Outbound ATU #2) + * 0xF6000000 - 0xF7FFFFFF 32-bit PCI IO (Outbound ATU #3) + * + * PCI->Local map (from PCI) + * MPC826x slave window controlled by + * + * 0x00000000 - 0x07FFFFFF MPC826x local memory (Inbound ATU #1) + */ + +/* + * Slave window that allows PCI masters to access MPC826x local memory. + * This window is set up using the first set of Inbound ATU registers + */ + +#ifndef M82xx_PCI_SLAVE_MEM_LOCAL +#define M82xx_PCI_SLAVE_MEM_LOCAL (((struct bd_info *)__res)->bi_memstart) +#define M82xx_PCI_SLAVE_MEM_BUS (((struct bd_info *)__res)->bi_memstart) +#define M82xx_PCI_SLAVE_MEM_SIZE (((struct bd_info *)__res)->bi_memsize) +#endif + +/* + * This is the window that allows the CPU to access PCI address space. + * It will be setup with the SIU PCIBR0 register. All three PCI master + * windows, which allow the CPU to access PCI prefetch, non prefetch, + * and IO space (see below), must all fit within this window. + */ + +#ifndef M82xx_PCI_LOWER_MEM +#define M82xx_PCI_LOWER_MEM 0x80000000 +#define M82xx_PCI_UPPER_MEM 0x9fffffff +#define M82xx_PCI_MEM_OFFSET 0x00000000 +#define M82xx_PCI_MEM_SIZE 0x20000000 +#endif + +#ifndef M82xx_PCI_LOWER_MMIO +#define M82xx_PCI_LOWER_MMIO 0xa0000000 +#define M82xx_PCI_UPPER_MMIO 0xafffffff +#define M82xx_PCI_MMIO_OFFSET 0x00000000 +#define M82xx_PCI_MMIO_SIZE 0x20000000 +#endif + +#ifndef M82xx_PCI_LOWER_IO +#define M82xx_PCI_LOWER_IO 0x00000000 +#define M82xx_PCI_UPPER_IO 0x01ffffff +#define M82xx_PCI_IO_BASE 0xf6000000 +#define M82xx_PCI_IO_SIZE 0x02000000 +#endif + +#ifndef M82xx_PCI_PRIM_WND_SIZE +#define M82xx_PCI_PRIM_WND_SIZE ~(M82xx_PCI_IO_SIZE - 1U) +#define M82xx_PCI_PRIM_WND_BASE (M82xx_PCI_IO_BASE) +#endif + +#ifndef M82xx_PCI_SEC_WND_SIZE +#define M82xx_PCI_SEC_WND_SIZE ~(M82xx_PCI_MEM_SIZE + M82xx_PCI_MMIO_SIZE - 1U) +#define M82xx_PCI_SEC_WND_BASE (M82xx_PCI_LOWER_MEM) +#endif + +#ifndef POTA_ADDR_SHIFT +#define POTA_ADDR_SHIFT 12 +#endif + +#ifndef PITA_ADDR_SHIFT +#define PITA_ADDR_SHIFT 12 +#endif + +#ifndef _IO_BASE +#define _IO_BASE isa_io_base +#endif + +#ifdef CONFIG_8260_PCI9 +struct pci_controller; +extern void setup_m8260_indirect_pci(struct pci_controller* hose, + u32 cfg_addr, u32 cfg_data); +#else +#define setup_m8260_indirect_pci setup_indirect_pci +#endif + +#endif /* _PPC_KERNEL_M8260_PCI_H */ diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h index 42fd1068cf2a..c5883dbed63f 100644 --- a/include/asm-ppc/cpm2.h +++ b/include/asm-ppc/cpm2.h @@ -1039,6 +1039,52 @@ typedef struct im_idma { #define CMXSCR_TS4CS_CLK7 0x00000006 /* SCC4 Tx Clock Source is CLK7 */ #define CMXSCR_TS4CS_CLK8 0x00000007 /* SCC4 Tx Clock Source is CLK8 */ +/*----------------------------------------------------------------------- + * SIUMCR - SIU Module Configuration Register 4-31 + */ +#define SIUMCR_BBD 0x80000000 /* Bus Busy Disable */ +#define SIUMCR_ESE 0x40000000 /* External Snoop Enable */ +#define SIUMCR_PBSE 0x20000000 /* Parity Byte Select Enable */ +#define SIUMCR_CDIS 0x10000000 /* Core Disable */ +#define SIUMCR_DPPC00 0x00000000 /* Data Parity Pins Configuration*/ +#define SIUMCR_DPPC01 0x04000000 /* - " - */ +#define SIUMCR_DPPC10 0x08000000 /* - " - */ +#define SIUMCR_DPPC11 0x0c000000 /* - " - */ +#define SIUMCR_L2CPC00 0x00000000 /* L2 Cache Pins Configuration */ +#define SIUMCR_L2CPC01 0x01000000 /* - " - */ +#define SIUMCR_L2CPC10 0x02000000 /* - " - */ +#define SIUMCR_L2CPC11 0x03000000 /* - " - */ +#define SIUMCR_LBPC00 0x00000000 /* Local Bus Pins Configuration */ +#define SIUMCR_LBPC01 0x00400000 /* - " - */ +#define SIUMCR_LBPC10 0x00800000 /* - " - */ +#define SIUMCR_LBPC11 0x00c00000 /* - " - */ +#define SIUMCR_APPC00 0x00000000 /* Address Parity Pins Configuration*/ +#define SIUMCR_APPC01 0x00100000 /* - " - */ +#define SIUMCR_APPC10 0x00200000 /* - " - */ +#define SIUMCR_APPC11 0x00300000 /* - " - */ +#define SIUMCR_CS10PC00 0x00000000 /* CS10 Pin Configuration */ +#define SIUMCR_CS10PC01 0x00040000 /* - " - */ +#define SIUMCR_CS10PC10 0x00080000 /* - " - */ +#define SIUMCR_CS10PC11 0x000c0000 /* - " - */ +#define SIUMCR_BCTLC00 0x00000000 /* Buffer Control Configuration */ +#define SIUMCR_BCTLC01 0x00010000 /* - " - */ +#define SIUMCR_BCTLC10 0x00020000 /* - " - */ +#define SIUMCR_BCTLC11 0x00030000 /* - " - */ +#define SIUMCR_MMR00 0x00000000 /* Mask Masters Requests */ +#define SIUMCR_MMR01 0x00004000 /* - " - */ +#define SIUMCR_MMR10 0x00008000 /* - " - */ +#define SIUMCR_MMR11 0x0000c000 /* - " - */ +#define SIUMCR_LPBSE 0x00002000 /* LocalBus Parity Byte Select Enable*/ + +/*----------------------------------------------------------------------- + * SCCR - System Clock Control Register 9-8 +*/ +#define SCCR_PCI_MODE 0x00000100 /* PCI Mode */ +#define SCCR_PCI_MODCK 0x00000080 /* Value of PCI_MODCK pin */ +#define SCCR_PCIDF_MSK 0x00000078 /* PCI division factor */ +#define SCCR_PCIDF_SHIFT 3 + + #endif /* __CPM2__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-ppc/m8260_pci.h b/include/asm-ppc/m8260_pci.h index 163a6b91d5b2..bf9e05dd54b5 100644 --- a/include/asm-ppc/m8260_pci.h +++ b/include/asm-ppc/m8260_pci.h @@ -19,6 +19,7 @@ * Define the vendor/device ID for the MPC8265. */ #define PCI_DEVICE_ID_MPC8265 ((0x18C0 << 16) | PCI_VENDOR_ID_MOTOROLA) +#define PCI_DEVICE_ID_MPC8272 ((0x18C1 << 16) | PCI_VENDOR_ID_MOTOROLA) #define M8265_PCIBR0 0x101ac #define M8265_PCIBR1 0x101b0 diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h index d820894e5991..89eb8a2ac693 100644 --- a/include/asm-ppc/mpc8260.h +++ b/include/asm-ppc/mpc8260.h @@ -41,7 +41,7 @@ #endif #ifdef CONFIG_PCI_8260 -#include +#include #endif /* Make sure the memory translation stuff is there if PCI not used. -- cgit v1.2.3 From 91f9855a7afbb160ba1709bf342858732138abad Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:12 -0700 Subject: [PATCH] ppc32: Fix building MPC8555 CDS when CONFIG_PCI is disabled The patch that introduced support for the VIA chipset broke building if CONFIG_PCI is disabled. Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/85xx/mpc85xx_cds_common.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c index c2a512735183..3ac0321eed03 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c +++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c @@ -439,9 +439,6 @@ mpc85xx_cds_setup_arch(void) printk("mpc85xx_cds_setup_arch\n"); - /* VIA IDE configuration */ - ppc_md.pcibios_fixup = mpc85xx_cds_pcibios_fixup; - #ifdef CONFIG_CPM2 cpm2_reset(); #endif @@ -462,6 +459,9 @@ mpc85xx_cds_setup_arch(void) loops_per_jiffy = freq / HZ; #ifdef CONFIG_PCI + /* VIA IDE configuration */ + ppc_md.pcibios_fixup = mpc85xx_cds_pcibios_fixup; + /* setup PCI host bridges */ mpc85xx_setup_hose(); #endif -- cgit v1.2.3 From 92b4dc16257fef814ddf1c8d1d2a20f67f67ee4b Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:13 -0700 Subject: [PATCH] ppc32: Simplified load string emulation error checking The error checking for emulation of load string instructions was overly generous and would cause certain valid forms of the instructions to be treated as illegal. We drop the range checking since the architecture allows this to be boundedly undefined. Tests on CPUs that support these instructions appear not do cause illegal instruction traps on range errors and just allow the execution to occur. Thanks to Kim Phillips for debugging this and figuring out what real HW was doing. Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/traps.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c index f8e7e324a173..c65731e8bc65 100644 --- a/arch/ppc/kernel/traps.c +++ b/arch/ppc/kernel/traps.c @@ -408,12 +408,7 @@ static int emulate_string_inst(struct pt_regs *regs, u32 instword) /* Early out if we are an invalid form of lswx */ if ((instword & INST_STRING_MASK) == INST_LSWX) - if ((rA >= rT) || (NB_RB >= rT) || (rT == rA) || (rT == NB_RB)) - return -EINVAL; - - /* Early out if we are an invalid form of lswi */ - if ((instword & INST_STRING_MASK) == INST_LSWI) - if ((rA >= rT) || (rT == rA)) + if ((rT == rA) || (rT == NB_RB)) return -EINVAL; EA = (rA == 0) ? 0 : regs->gpr[rA]; -- cgit v1.2.3 From ff945023c6a455679165b14d298316e262ceeb1f Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:14 -0700 Subject: [PATCH] ppc32: MPC834x BCSR_SIZE too small for use in a BAT. The call to io_block_mapping was creating an invalid BAT entry because the value of BCSR_SIZE (32K) is too small to be used in a BAT (128K min). This change removes the io_block_mapping call since these registers can easily be mapped using ioremap at the point of use. Signed-off-by: Randy Vinson Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/83xx/mpc834x_sys.c | 1 - arch/ppc/platforms/83xx/mpc834x_sys.h | 1 - 2 files changed, 2 deletions(-) (limited to 'arch') diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c index b3b0f51979d2..e6348b5a1ddc 100644 --- a/arch/ppc/platforms/83xx/mpc834x_sys.c +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c @@ -127,7 +127,6 @@ mpc834x_sys_map_io(void) { /* we steal the lowest ioremap addr for virt space */ io_block_mapping(VIRT_IMMRBAR, immrbar, 1024*1024, _PAGE_IO); - io_block_mapping(BCSR_VIRT_ADDR, BCSR_PHYS_ADDR, BCSR_SIZE, _PAGE_IO); } int diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h index f4d055ae19c1..49db0f4c847e 100644 --- a/arch/ppc/platforms/83xx/mpc834x_sys.h +++ b/arch/ppc/platforms/83xx/mpc834x_sys.h @@ -26,7 +26,6 @@ #define VIRT_IMMRBAR ((uint)0xfe000000) #define BCSR_PHYS_ADDR ((uint)0xf8000000) -#define BCSR_VIRT_ADDR ((uint)0xfe100000) #define BCSR_SIZE ((uint)(32 * 1024)) #ifdef CONFIG_PCI -- cgit v1.2.3 From f9e4a005827ec0b33f0c61fec1634a5a3421decd Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:15 -0700 Subject: [PATCH] ppc32: Add soft reset to MPC834x This change allows mpc83xx_restart to issue a software reset. Signed-off-by: Randy Vinson Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/83xx/mpc834x_sys.h | 6 ++++++ arch/ppc/syslib/ppc83xx_setup.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) (limited to 'arch') diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h index 49db0f4c847e..a2f6e49d7151 100644 --- a/arch/ppc/platforms/83xx/mpc834x_sys.h +++ b/arch/ppc/platforms/83xx/mpc834x_sys.h @@ -28,6 +28,12 @@ #define BCSR_PHYS_ADDR ((uint)0xf8000000) #define BCSR_SIZE ((uint)(32 * 1024)) +#define BCSR_MISC_REG2_OFF 0x07 +#define BCSR_MISC_REG2_PORESET 0x01 + +#define BCSR_MISC_REG3_OFF 0x08 +#define BCSR_MISC_REG3_CNFLOCK 0x80 + #ifdef CONFIG_PCI /* PCI interrupt controller */ #define PIRQA MPC83xx_IRQ_IRQ4 diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c index c28f9d679484..843cf8873e60 100644 --- a/arch/ppc/syslib/ppc83xx_setup.c +++ b/arch/ppc/syslib/ppc83xx_setup.c @@ -29,6 +29,7 @@ #include #include #include +#include #include @@ -117,7 +118,34 @@ mpc83xx_early_serial_map(void) void mpc83xx_restart(char *cmd) { + volatile unsigned char __iomem *reg; + unsigned char tmp; + + reg = ioremap(BCSR_PHYS_ADDR, BCSR_SIZE); + local_irq_disable(); + + /* + * Unlock the BCSR bits so a PRST will update the contents. + * Otherwise the reset asserts but doesn't clear. + */ + tmp = in_8(reg + BCSR_MISC_REG3_OFF); + tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */ + out_8(reg + BCSR_MISC_REG3_OFF, tmp); + + /* + * Trigger a reset via a low->high transition of the + * PORESET bit. + */ + tmp = in_8(reg + BCSR_MISC_REG2_OFF); + tmp &= ~BCSR_MISC_REG2_PORESET; + out_8(reg + BCSR_MISC_REG2_OFF, tmp); + + udelay(1); + + tmp |= BCSR_MISC_REG2_PORESET; + out_8(reg + BCSR_MISC_REG2_OFF, tmp); + for(;;); } -- cgit v1.2.3 From 6cf2b3fc9934a56ceeb393ea5d0149e0bebc80fa Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 28 May 2005 15:52:15 -0700 Subject: [PATCH] ppc32: i8259 PIC should not be initialized if PCI is not configured Trying to initialize the i8259 PIC will not work if CONFIG_PCI is not enabled. The kernel hangs if the initialization is tried. Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/85xx/mpc85xx_cds_common.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c index 3ac0321eed03..e7cfa498568c 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c +++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c @@ -200,12 +200,14 @@ mpc85xx_cds_init_IRQ(void) */ openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET); +#ifdef CONFIG_PCI openpic_hookup_cascade(PIRQ0A, "82c59 cascade", i8259_irq); for (i = 0; i < NUM_8259_INTERRUPTS; i++) irq_desc[i].handler = &i8259_pic; i8259_init(0); +#endif #ifdef CONFIG_CPM2 /* Setup CPM2 PIC */ -- cgit v1.2.3 From 05fda3b1d88ebac1fc866fc3ed5b7ef5a4672fa6 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Tue, 31 May 2005 17:01:11 +1000 Subject: [PATCH] ppc64: actually call prom_send_capabilities When I sent in the patch adding the code for the kernel to tell the firmware about its capabilities on pSeries machines, I included the function to give the capabilities to firmware but somehow forgot the hunk that adds the call to the new function. This patch adds the call. Signed-off-by: Paul Mackerras Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/prom_init.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c index 6f79b7b9b445..bc53967a8643 100644 --- a/arch/ppc64/kernel/prom_init.c +++ b/arch/ppc64/kernel/prom_init.c @@ -1880,6 +1880,12 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long prom_setprop(_prom->chosen, "linux,platform", &getprop_rval, sizeof(getprop_rval)); + /* + * On pSeries, inform the firmware about our capabilities + */ + if (RELOC(of_platform) & PLATFORM_PSERIES) + prom_send_capabilities(); + /* * On pSeries, copy the CPU hold code */ -- cgit v1.2.3 From 49f680ea7bac5c679fb6374a326a164a3fba07cc Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 31 May 2005 18:02:00 +0100 Subject: [PATCH] ARM SMP: convert alignment enable The current vector entry system does not allow for SMP. In order to work around this, we need to eliminate our reliance on the fixed save areas, which breaks the way we enable alignment traps. This patch makes the alignment trap enable code independent of the way we handle the save areas. Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 4 +++- arch/arm/kernel/entry-header.S | 7 +++---- 2 files changed, 6 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index a99e686c0b83..cfb5cf5e48fc 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -269,6 +269,8 @@ __pabt_svc: .word __temp_und .LCabt: .word __temp_abt +.LCcralign: + .word cr_alignment #ifdef MULTI_ABORT .LCprocfns: .word processor @@ -311,7 +313,7 @@ __pabt_svc: @ @ Enable the alignment trap while in kernel mode @ - alignment_trap r7, r0, __temp_\sym + alignment_trap r0 @ @ Clear FP to mark the first stack frame diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S index a3d40a0e2b04..afef21273963 100644 --- a/arch/arm/kernel/entry-header.S +++ b/arch/arm/kernel/entry-header.S @@ -59,11 +59,10 @@ mov \rd, \rd, lsl #13 .endm - .macro alignment_trap, rbase, rtemp, sym + .macro alignment_trap, rtemp #ifdef CONFIG_ALIGNMENT_TRAP -#define OFF_CR_ALIGNMENT(x) cr_alignment - x - - ldr \rtemp, [\rbase, #OFF_CR_ALIGNMENT(\sym)] + ldr \rtemp, .LCcralign + ldr \rtemp, [\rtemp] mcr p15, 0, \rtemp, c1, c0 #endif .endm -- cgit v1.2.3 From fffcc150a21853651ea890a605832c5cccbb6279 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Tue, 31 May 2005 10:38:32 -0700 Subject: [IA64] Use "PER_CPU" form of EXPORT macro I was gently reminded that there are per-cpu forms of the EXPORT_SYMBOL macros. Signed-off-by: Tony Luck --- arch/ia64/kernel/perfmon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 0e58ec7db128..6407bff6bfd7 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -609,7 +609,7 @@ DEFINE_PER_CPU(unsigned long, pfm_syst_info); DEFINE_PER_CPU(struct task_struct *, pmu_owner); DEFINE_PER_CPU(pfm_context_t *, pmu_ctx); DEFINE_PER_CPU(unsigned long, pmu_activation_number); -EXPORT_SYMBOL_GPL(per_cpu__pfm_syst_info); +EXPORT_PER_CPU_SYMBOL_GPL(pfm_syst_info); /* forward declaration */ -- cgit v1.2.3 From ccea7a19e54349d4f40778304e1bb88da83d39e7 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 31 May 2005 22:22:32 +0100 Subject: [PATCH] ARM SMP: Fix vector entry The current vector entry system does not allow for SMP. In order to work around this, we need to eliminate our reliance on the fixed save areas, which breaks the way we enable alignment traps. This patch changes the way we handle the save areas such that we can have one per CPU. Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 172 ++++++++++++++++++++++--------------------- arch/arm/kernel/setup.c | 52 ++++++++++++- 2 files changed, 139 insertions(+), 85 deletions(-) (limited to 'arch') diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index cfb5cf5e48fc..78cf84cdc2ae 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -53,46 +53,62 @@ /* * Invalid mode handlers */ - .macro inv_entry, sym, reason - sub sp, sp, #S_FRAME_SIZE @ Allocate frame size in one go - stmia sp, {r0 - lr} @ Save XXX r0 - lr - ldr r4, .LC\sym + .macro inv_entry, reason + sub sp, sp, #S_FRAME_SIZE + stmib sp, {r1 - lr} mov r1, #\reason .endm __pabt_invalid: - inv_entry abt, BAD_PREFETCH - b 1f + inv_entry BAD_PREFETCH + b common_invalid __dabt_invalid: - inv_entry abt, BAD_DATA - b 1f + inv_entry BAD_DATA + b common_invalid __irq_invalid: - inv_entry irq, BAD_IRQ - b 1f + inv_entry BAD_IRQ + b common_invalid __und_invalid: - inv_entry und, BAD_UNDEFINSTR + inv_entry BAD_UNDEFINSTR + + @ + @ XXX fall through to common_invalid + @ + +@ +@ common_invalid - generic code for failed exception (re-entrant version of handlers) +@ +common_invalid: + zero_fp + + ldmia r0, {r4 - r6} + add r0, sp, #S_PC @ here for interlock avoidance + mov r7, #-1 @ "" "" "" "" + str r4, [sp] @ save preserved r0 + stmia r0, {r5 - r7} @ lr_, + @ cpsr_, "old_r0" -1: zero_fp - ldmia r4, {r5 - r7} @ Get XXX pc, cpsr, old_r0 - add r4, sp, #S_PC - stmia r4, {r5 - r7} @ Save XXX pc, cpsr, old_r0 mov r0, sp - and r2, r6, #31 @ int mode + and r2, r6, #0x1f b bad_mode /* * SVC mode handlers */ - .macro svc_entry, sym + .macro svc_entry sub sp, sp, #S_FRAME_SIZE - stmia sp, {r0 - r12} @ save r0 - r12 - ldr r2, .LC\sym - add r0, sp, #S_FRAME_SIZE - ldmia r2, {r2 - r4} @ get pc, cpsr - add r5, sp, #S_SP + stmib sp, {r1 - r12} + + ldmia r0, {r1 - r3} + add r5, sp, #S_SP @ here for interlock avoidance + mov r4, #-1 @ "" "" "" "" + add r0, sp, #S_FRAME_SIZE @ "" "" "" "" + str r1, [sp] @ save the "real" r0 copied + @ from the exception stack + mov r1, lr @ @@ -109,7 +125,7 @@ __und_invalid: .align 5 __dabt_svc: - svc_entry abt + svc_entry @ @ get ready to re-enable interrupts if appropriate @@ -156,13 +172,15 @@ __dabt_svc: .align 5 __irq_svc: - svc_entry irq + svc_entry + #ifdef CONFIG_PREEMPT get_thread_info tsk ldr r8, [tsk, #TI_PREEMPT] @ get preempt count add r7, r8, #1 @ increment it str r7, [tsk, #TI_PREEMPT] #endif + irq_handler #ifdef CONFIG_PREEMPT ldr r0, [tsk, #TI_FLAGS] @ get flags @@ -200,7 +218,7 @@ svc_preempt: .align 5 __und_svc: - svc_entry und + svc_entry @ @ call emulation code, which returns using r9 if it has emulated @@ -230,7 +248,7 @@ __und_svc: .align 5 __pabt_svc: - svc_entry abt + svc_entry @ @ re-enable interrupts if appropriate @@ -263,12 +281,6 @@ __pabt_svc: ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr .align 5 -.LCirq: - .word __temp_irq -.LCund: - .word __temp_und -.LCabt: - .word __temp_abt .LCcralign: .word cr_alignment #ifdef MULTI_ABORT @@ -285,12 +297,16 @@ __pabt_svc: /* * User mode handlers */ - .macro usr_entry, sym - sub sp, sp, #S_FRAME_SIZE @ Allocate frame size in one go - stmia sp, {r0 - r12} @ save r0 - r12 - ldr r7, .LC\sym - add r5, sp, #S_PC - ldmia r7, {r2 - r4} @ Get USR pc, cpsr + .macro usr_entry + sub sp, sp, #S_FRAME_SIZE + stmib sp, {r1 - r12} + + ldmia r0, {r1 - r3} + add r0, sp, #S_PC @ here for interlock avoidance + mov r4, #-1 @ "" "" "" "" + + str r1, [sp] @ save the "real" r0 copied + @ from the exception stack #if __LINUX_ARM_ARCH__ < 6 @ make sure our user space atomic helper is aborted @@ -307,8 +323,8 @@ __pabt_svc: @ @ Also, separately save sp_usr and lr_usr @ - stmia r5, {r2 - r4} - stmdb r5, {sp, lr}^ + stmia r0, {r2 - r4} + stmdb r0, {sp, lr}^ @ @ Enable the alignment trap while in kernel mode @@ -323,7 +339,7 @@ __pabt_svc: .align 5 __dabt_usr: - usr_entry abt + usr_entry @ @ Call the processor-specific abort handler: @@ -352,7 +368,7 @@ __dabt_usr: .align 5 __irq_usr: - usr_entry irq + usr_entry get_thread_info tsk #ifdef CONFIG_PREEMPT @@ -360,6 +376,7 @@ __irq_usr: add r7, r8, #1 @ increment it str r7, [tsk, #TI_PREEMPT] #endif + irq_handler #ifdef CONFIG_PREEMPT ldr r0, [tsk, #TI_PREEMPT] @@ -367,6 +384,7 @@ __irq_usr: teq r0, r7 strne r0, [r0, -r0] #endif + mov why, #0 b ret_to_user @@ -374,7 +392,7 @@ __irq_usr: .align 5 __und_usr: - usr_entry und + usr_entry tst r3, #PSR_T_BIT @ Thumb mode? bne fpundefinstr @ ignore FP @@ -490,7 +508,7 @@ fpundefinstr: .align 5 __pabt_usr: - usr_entry abt + usr_entry enable_irq @ Enable interrupts mov r0, r2 @ address (pc) @@ -749,29 +767,41 @@ __kuser_helper_end: * * Common stub entry macro: * Enter in IRQ mode, spsr = SVC/USR CPSR, lr = SVC/USR PC + * + * SP points to a minimal amount of processor-private memory, the address + * of which is copied into r0 for the mode specific abort handler. */ - .macro vector_stub, name, sym, correction=0 + .macro vector_stub, name, correction=0 .align 5 vector_\name: - ldr r13, .LCs\sym .if \correction sub lr, lr, #\correction .endif - str lr, [r13] @ save lr_IRQ + + @ + @ Save r0, lr_ (parent PC) and spsr_ + @ (parent CPSR) + @ + stmia sp, {r0, lr} @ save r0, lr mrs lr, spsr - str lr, [r13, #4] @ save spsr_IRQ + str lr, [sp, #8] @ save spsr + @ - @ now branch to the relevant MODE handling routine + @ Prepare for SVC32 mode. IRQs remain disabled. @ - mrs r13, cpsr - bic r13, r13, #MODE_MASK - orr r13, r13, #SVC_MODE - msr spsr_cxsf, r13 @ switch to SVC_32 mode + mrs r0, cpsr + bic r0, r0, #MODE_MASK + orr r0, r0, #SVC_MODE + msr spsr_cxsf, r0 - and lr, lr, #15 + @ + @ the branch table must immediately follow this code + @ + mov r0, sp + and lr, lr, #0x0f ldr lr, [pc, lr, lsl #2] - movs pc, lr @ Changes mode and branches + movs pc, lr @ branch to handler in SVC mode .endm .globl __stubs_start @@ -779,7 +809,7 @@ __stubs_start: /* * Interrupt dispatcher */ - vector_stub irq, irq, 4 + vector_stub irq, 4 .long __irq_usr @ 0 (USR_26 / USR_32) .long __irq_invalid @ 1 (FIQ_26 / FIQ_32) @@ -802,7 +832,7 @@ __stubs_start: * Data abort dispatcher * Enter in ABT mode, spsr = USR CPSR, lr = USR PC */ - vector_stub dabt, abt, 8 + vector_stub dabt, 8 .long __dabt_usr @ 0 (USR_26 / USR_32) .long __dabt_invalid @ 1 (FIQ_26 / FIQ_32) @@ -825,7 +855,7 @@ __stubs_start: * Prefetch abort dispatcher * Enter in ABT mode, spsr = USR CPSR, lr = USR PC */ - vector_stub pabt, abt, 4 + vector_stub pabt, 4 .long __pabt_usr @ 0 (USR_26 / USR_32) .long __pabt_invalid @ 1 (FIQ_26 / FIQ_32) @@ -848,7 +878,7 @@ __stubs_start: * Undef instr entry dispatcher * Enter in UND mode, spsr = SVC/USR CPSR, lr = SVC/USR PC */ - vector_stub und, und + vector_stub und .long __und_usr @ 0 (USR_26 / USR_32) .long __und_invalid @ 1 (FIQ_26 / FIQ_32) @@ -902,13 +932,6 @@ vector_addrexcptn: .LCvswi: .word vector_swi -.LCsirq: - .word __temp_irq -.LCsund: - .word __temp_und -.LCsabt: - .word __temp_abt - .globl __stubs_end __stubs_end: @@ -930,23 +953,6 @@ __vectors_end: .data -/* - * Do not reorder these, and do not insert extra data between... - */ - -__temp_irq: - .word 0 @ saved lr_irq - .word 0 @ saved spsr_irq - .word -1 @ old_r0 -__temp_und: - .word 0 @ Saved lr_und - .word 0 @ Saved spsr_und - .word -1 @ old_r0 -__temp_abt: - .word 0 @ Saved lr_abt - .word 0 @ Saved spsr_abt - .word -1 @ old_r0 - .globl cr_alignment .globl cr_no_alignment cr_alignment: diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index c2a7da3ac0f1..7ecdda3f1253 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -92,6 +92,14 @@ struct cpu_user_fns cpu_user; struct cpu_cache_fns cpu_cache; #endif +struct stack { + u32 irq[3]; + u32 abt[3]; + u32 und[3]; +} ____cacheline_aligned; + +static struct stack stacks[NR_CPUS]; + char elf_platform[ELF_PLATFORM_SIZE]; EXPORT_SYMBOL(elf_platform); @@ -307,8 +315,6 @@ static void __init setup_processor(void) cpu_name, processor_id, (int)processor_id & 15, proc_arch[cpu_architecture()]); - dump_cpu_info(smp_processor_id()); - sprintf(system_utsname.machine, "%s%c", list->arch_name, ENDIANNESS); sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; @@ -316,6 +322,46 @@ static void __init setup_processor(void) cpu_proc_init(); } +/* + * cpu_init - initialise one CPU. + * + * cpu_init dumps the cache information, initialises SMP specific + * information, and sets up the per-CPU stacks. + */ +void __init cpu_init(void) +{ + unsigned int cpu = smp_processor_id(); + struct stack *stk = &stacks[cpu]; + + if (cpu >= NR_CPUS) { + printk(KERN_CRIT "CPU%u: bad primary CPU number\n", cpu); + BUG(); + } + + dump_cpu_info(cpu); + + /* + * setup stacks for re-entrant exception handlers + */ + __asm__ ( + "msr cpsr_c, %1\n\t" + "add sp, %0, %2\n\t" + "msr cpsr_c, %3\n\t" + "add sp, %0, %4\n\t" + "msr cpsr_c, %5\n\t" + "add sp, %0, %6\n\t" + "msr cpsr_c, %7" + : + : "r" (stk), + "I" (PSR_F_BIT | PSR_I_BIT | IRQ_MODE), + "I" (offsetof(struct stack, irq[0])), + "I" (PSR_F_BIT | PSR_I_BIT | ABT_MODE), + "I" (offsetof(struct stack, abt[0])), + "I" (PSR_F_BIT | PSR_I_BIT | UND_MODE), + "I" (offsetof(struct stack, und[0])), + "I" (PSR_F_BIT | PSR_I_BIT | SVC_MODE)); +} + static struct machine_desc * __init setup_machine(unsigned int nr) { struct machine_desc *list; @@ -715,6 +761,8 @@ void __init setup_arch(char **cmdline_p) paging_init(&meminfo, mdesc); request_standard_resources(&meminfo, mdesc); + cpu_init(); + /* * Set up various architecture-specific pointers */ -- cgit v1.2.3 From 8d91640606c47551771a9b27664f249f4b176613 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 31 May 2005 14:39:26 -0700 Subject: [PATCH] x86_64: More fixes for compilation without CONFIG_ACPI Suggested by Alexander Nyberg Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/io_apic.c | 1 + arch/x86_64/kernel/mpparse.c | 1 + arch/x86_64/kernel/time.c | 2 ++ 3 files changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index 80e9b498c443..afd87e64d0a8 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -37,6 +37,7 @@ #include #include #include +#include #define __apicdebuginit __init diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index f86d9db94bfc..61a63be6b294 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c @@ -30,6 +30,7 @@ #include #include #include +#include /* Have we found an MP table */ int smp_found_config; diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 735b6767c8ed..fb8c809b4cd9 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -27,7 +27,9 @@ #include #include #include +#ifdef CONFIG_ACPI #include /* for PM timer frequency */ +#endif #include #include #include -- cgit v1.2.3 From 9c2be6a0fa186e2cb0cf14f41f20b08a5809a026 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 31 May 2005 14:39:26 -0700 Subject: [PATCH] x86_64 CONFIG_ACPI=n build fix Make CONFIG_X86_PM_TIMER dependent on CONFIG_ACPI Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 0f430d9d3632..289f448ac89c 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -305,6 +305,7 @@ config HPET_TIMER config X86_PM_TIMER bool "PM timer" + depends on ACPI default y help Support the ACPI PM timer for time keeping. This is slow, -- cgit v1.2.3 From adaa765d76f58b47e10a4760f2c0bc86de5479b9 Mon Sep 17 00:00:00 2001 From: Alexander Nyberg Date: Tue, 31 May 2005 14:39:27 -0700 Subject: [PATCH] acpi build fix: x86 setup.c This is a neverending story linux/acpi.h contains empty declarations for acpi_boot_init() & acpi_boot_table_init() but they are nested inside #ifdef CONFIG_ACPI. So we'll have to #ifdef in arch/i386/kernel/setup.c: setup_arch() Signed-off-by: Alexander Nyberg Cc: "Brown, Len" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/setup.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 945ec73163c8..2bfbddebdbf8 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1502,11 +1502,13 @@ void __init setup_arch(char **cmdline_p) if (efi_enabled) efi_map_memmap(); +#ifdef CONFIG_ACPI_BOOT /* * Parse the ACPI tables for possible boot-time SMP configuration. */ acpi_boot_table_init(); acpi_boot_init(); +#endif #ifdef CONFIG_X86_LOCAL_APIC if (smp_found_config) -- cgit v1.2.3 From 2e214953295dd33fc62d43ac7ec91997afad75bb Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Tue, 31 May 2005 14:39:28 -0700 Subject: [PATCH] h8300 sleep problem h8300 appears to sleep (halt) when need_resched IS set. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/h8300/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c index 134aec1c6d19..b5f83e9f04db 100644 --- a/arch/h8300/kernel/process.c +++ b/arch/h8300/kernel/process.c @@ -54,7 +54,7 @@ asmlinkage void ret_from_fork(void); void default_idle(void) { while(1) { - if (need_resched()) { + if (!need_resched()) { local_irq_enable(); __asm__("sleep"); local_irq_disable(); -- cgit v1.2.3 From f50734569c25c4e902bd3d0fb2e5bd93a200cc75 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Tue, 31 May 2005 14:39:29 -0700 Subject: [PATCH] ppc64: allow timer based profiling on iseries We used to have an iseries specific profiler that used /proc/profile. Now thats gone we can use the generic timer based stuff. Signed-off-by: Anton Blanchard Acked-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/time.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c index 3d54745108c7..33364a7d2cd2 100644 --- a/arch/ppc64/kernel/time.c +++ b/arch/ppc64/kernel/time.c @@ -325,9 +325,7 @@ int timer_interrupt(struct pt_regs * regs) irq_enter(); -#ifndef CONFIG_PPC_ISERIES profile_tick(CPU_PROFILING, regs); -#endif lpaca->lppaca.int_dword.fields.decr_int = 0; -- cgit v1.2.3 From 7c963ad1d113790a8c723a178988b675868f3abe Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 31 May 2005 16:57:59 -0700 Subject: [SPARC64]: Fix streaming buffer flushing on PCI and SBUS. Firstly, if the direction is TODEVICE, then dirty data in the streaming cache is impossible so we can elide the flush-flag synchronization in that case. Next, the context allocator is broken. It is highly likely that contexts get used multiple times for different dma mappings, which confuses the strbuf flushing code and makes it run inefficiently. Signed-off-by: David S. Miller --- arch/sparc64/kernel/pci_iommu.c | 90 +++++++++++++++++++++++++++++++--------- arch/sparc64/kernel/pci_psycho.c | 2 +- arch/sparc64/kernel/pci_sabre.c | 2 +- arch/sparc64/kernel/pci_schizo.c | 2 +- arch/sparc64/kernel/sbus.c | 20 ++++++--- include/asm-sparc64/iommu.h | 2 + include/asm-sparc64/pbm.h | 8 ++-- 7 files changed, 94 insertions(+), 32 deletions(-) (limited to 'arch') diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index 33ca56c90da2..1807876f8c36 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -196,6 +196,34 @@ static iopte_t *alloc_consistent_cluster(struct pci_iommu *iommu, unsigned long return NULL; } +static int iommu_alloc_ctx(struct pci_iommu *iommu) +{ + int lowest = iommu->ctx_lowest_free; + int sz = IOMMU_NUM_CTXS - lowest; + int n = find_next_zero_bit(iommu->ctx_bitmap, sz, lowest); + + if (unlikely(n == sz)) { + n = find_next_zero_bit(iommu->ctx_bitmap, lowest, 1); + if (unlikely(n == lowest)) { + printk(KERN_WARNING "IOMMU: Ran out of contexts.\n"); + n = 0; + } + } + if (n) + __set_bit(n, iommu->ctx_bitmap); + + return n; +} + +static inline void iommu_free_ctx(struct pci_iommu *iommu, int ctx) +{ + if (likely(ctx)) { + __clear_bit(ctx, iommu->ctx_bitmap); + if (ctx < iommu->ctx_lowest_free) + iommu->ctx_lowest_free = ctx; + } +} + /* Allocate and map kernel buffer of size SIZE using consistent mode * DMA for PCI device PDEV. Return non-NULL cpu-side address if * successful and set *DMA_ADDRP to the PCI side dma address. @@ -236,7 +264,7 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad npages = size >> IO_PAGE_SHIFT; ctx = 0; if (iommu->iommu_ctxflush) - ctx = iommu->iommu_cur_ctx++; + ctx = iommu_alloc_ctx(iommu); first_page = __pa(first_page); while (npages--) { iopte_val(*iopte) = (IOPTE_CONSISTENT(ctx) | @@ -317,6 +345,8 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_ } } + iommu_free_ctx(iommu, ctx); + spin_unlock_irqrestore(&iommu->lock, flags); order = get_order(size); @@ -360,7 +390,7 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct base_paddr = __pa(oaddr & IO_PAGE_MASK); ctx = 0; if (iommu->iommu_ctxflush) - ctx = iommu->iommu_cur_ctx++; + ctx = iommu_alloc_ctx(iommu); if (strbuf->strbuf_enabled) iopte_protection = IOPTE_STREAMING(ctx); else @@ -380,39 +410,55 @@ bad: return PCI_DMA_ERROR_CODE; } -static void pci_strbuf_flush(struct pci_strbuf *strbuf, struct pci_iommu *iommu, u32 vaddr, unsigned long ctx, unsigned long npages) +static void pci_strbuf_flush(struct pci_strbuf *strbuf, struct pci_iommu *iommu, u32 vaddr, unsigned long ctx, unsigned long npages, int direction) { int limit; - PCI_STC_FLUSHFLAG_INIT(strbuf); if (strbuf->strbuf_ctxflush && iommu->iommu_ctxflush) { unsigned long matchreg, flushreg; + u64 val; flushreg = strbuf->strbuf_ctxflush; matchreg = PCI_STC_CTXMATCH_ADDR(strbuf, ctx); - limit = 100000; + if (pci_iommu_read(matchreg) == 0) + goto do_flush_sync; + pci_iommu_write(flushreg, ctx); - for(;;) { - if (((long)pci_iommu_read(matchreg)) >= 0L) - break; - limit--; - if (!limit) - break; - udelay(1); + if ((val = pci_iommu_read(matchreg)) == 0) + goto do_flush_sync; + + val &= 0xffff; + while (val) { + if (val & 0x1) + pci_iommu_write(flushreg, ctx); + val >>= 1; } - if (!limit) + val = pci_iommu_read(matchreg); + if (unlikely(val)) { printk(KERN_WARNING "pci_strbuf_flush: ctx flush " - "timeout vaddr[%08x] ctx[%lx]\n", - vaddr, ctx); + "timeout matchreg[%lx] ctx[%lx]\n", + val, ctx); + goto do_page_flush; + } } else { unsigned long i; + do_page_flush: for (i = 0; i < npages; i++, vaddr += IO_PAGE_SIZE) pci_iommu_write(strbuf->strbuf_pflush, vaddr); } +do_flush_sync: + /* If the device could not have possibly put dirty data into + * the streaming cache, no flush-flag synchronization needs + * to be performed. + */ + if (direction == PCI_DMA_TODEVICE) + return; + + PCI_STC_FLUSHFLAG_INIT(strbuf); pci_iommu_write(strbuf->strbuf_fsync, strbuf->strbuf_flushflag_pa); (void) pci_iommu_read(iommu->write_complete_reg); @@ -466,7 +512,7 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int /* Step 1: Kick data out of streaming buffers if necessary. */ if (strbuf->strbuf_enabled) - pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages); + pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction); /* Step 2: Clear out first TSB entry. */ iopte_make_dummy(iommu, base); @@ -474,6 +520,8 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base, npages, ctx); + iommu_free_ctx(iommu, ctx); + spin_unlock_irqrestore(&iommu->lock, flags); } @@ -613,7 +661,7 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int /* Step 4: Choose a context if necessary. */ ctx = 0; if (iommu->iommu_ctxflush) - ctx = iommu->iommu_cur_ctx++; + ctx = iommu_alloc_ctx(iommu); /* Step 5: Create the mappings. */ if (strbuf->strbuf_enabled) @@ -678,7 +726,7 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, /* Step 1: Kick data out of streaming buffers if necessary. */ if (strbuf->strbuf_enabled) - pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages); + pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction); /* Step 2: Clear out first TSB entry. */ iopte_make_dummy(iommu, base); @@ -686,6 +734,8 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base, npages, ctx); + iommu_free_ctx(iommu, ctx); + spin_unlock_irqrestore(&iommu->lock, flags); } @@ -724,7 +774,7 @@ void pci_dma_sync_single_for_cpu(struct pci_dev *pdev, dma_addr_t bus_addr, size } /* Step 2: Kick data out of streaming buffers. */ - pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages); + pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction); spin_unlock_irqrestore(&iommu->lock, flags); } @@ -768,7 +818,7 @@ void pci_dma_sync_sg_for_cpu(struct pci_dev *pdev, struct scatterlist *sglist, i i--; npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) - bus_addr) >> IO_PAGE_SHIFT; - pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages); + pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction); spin_unlock_irqrestore(&iommu->lock, flags); } diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c index 3567fa879e1f..534320ef0db2 100644 --- a/arch/sparc64/kernel/pci_psycho.c +++ b/arch/sparc64/kernel/pci_psycho.c @@ -1212,7 +1212,7 @@ static void __init psycho_iommu_init(struct pci_controller_info *p) /* Setup initial software IOMMU state. */ spin_lock_init(&iommu->lock); - iommu->iommu_cur_ctx = 0; + iommu->ctx_lowest_free = 1; /* Register addresses. */ iommu->iommu_control = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL; diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c index 5525d1ec4af8..53d333b4a4e8 100644 --- a/arch/sparc64/kernel/pci_sabre.c +++ b/arch/sparc64/kernel/pci_sabre.c @@ -1265,7 +1265,7 @@ static void __init sabre_iommu_init(struct pci_controller_info *p, /* Setup initial software IOMMU state. */ spin_lock_init(&iommu->lock); - iommu->iommu_cur_ctx = 0; + iommu->ctx_lowest_free = 1; /* Register addresses. */ iommu->iommu_control = p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL; diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c index e93fcadc3722..5753175b94e6 100644 --- a/arch/sparc64/kernel/pci_schizo.c +++ b/arch/sparc64/kernel/pci_schizo.c @@ -1753,7 +1753,7 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm) /* Setup initial software IOMMU state. */ spin_lock_init(&iommu->lock); - iommu->iommu_cur_ctx = 0; + iommu->ctx_lowest_free = 1; /* Register addresses, SCHIZO has iommu ctx flushing. */ iommu->iommu_control = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL; diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c index 76ea6455433f..89f5e019f24c 100644 --- a/arch/sparc64/kernel/sbus.c +++ b/arch/sparc64/kernel/sbus.c @@ -117,17 +117,25 @@ static void iommu_flush(struct sbus_iommu *iommu, u32 base, unsigned long npages #define STRBUF_TAG_VALID 0x02UL -static void sbus_strbuf_flush(struct sbus_iommu *iommu, u32 base, unsigned long npages) +static void sbus_strbuf_flush(struct sbus_iommu *iommu, u32 base, unsigned long npages, int direction) { unsigned long n; int limit; - iommu->strbuf_flushflag = 0UL; n = npages; while (n--) upa_writeq(base + (n << IO_PAGE_SHIFT), iommu->strbuf_regs + STRBUF_PFLUSH); + /* If the device could not have possibly put dirty data into + * the streaming cache, no flush-flag synchronization needs + * to be performed. + */ + if (direction == SBUS_DMA_TODEVICE) + return; + + iommu->strbuf_flushflag = 0UL; + /* Whoopee cushion! */ upa_writeq(__pa(&iommu->strbuf_flushflag), iommu->strbuf_regs + STRBUF_FSYNC); @@ -421,7 +429,7 @@ void sbus_unmap_single(struct sbus_dev *sdev, dma_addr_t dma_addr, size_t size, spin_lock_irqsave(&iommu->lock, flags); free_streaming_cluster(iommu, dma_base, size >> IO_PAGE_SHIFT); - sbus_strbuf_flush(iommu, dma_base, size >> IO_PAGE_SHIFT); + sbus_strbuf_flush(iommu, dma_base, size >> IO_PAGE_SHIFT, direction); spin_unlock_irqrestore(&iommu->lock, flags); } @@ -584,7 +592,7 @@ void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, int nents, int iommu = sdev->bus->iommu; spin_lock_irqsave(&iommu->lock, flags); free_streaming_cluster(iommu, dvma_base, size >> IO_PAGE_SHIFT); - sbus_strbuf_flush(iommu, dvma_base, size >> IO_PAGE_SHIFT); + sbus_strbuf_flush(iommu, dvma_base, size >> IO_PAGE_SHIFT, direction); spin_unlock_irqrestore(&iommu->lock, flags); } @@ -596,7 +604,7 @@ void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t base, size_t size = (IO_PAGE_ALIGN(base + size) - (base & IO_PAGE_MASK)); spin_lock_irqsave(&iommu->lock, flags); - sbus_strbuf_flush(iommu, base & IO_PAGE_MASK, size >> IO_PAGE_SHIFT); + sbus_strbuf_flush(iommu, base & IO_PAGE_MASK, size >> IO_PAGE_SHIFT, direction); spin_unlock_irqrestore(&iommu->lock, flags); } @@ -620,7 +628,7 @@ void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, struct scatterlist *sg, int size = IO_PAGE_ALIGN(sg[i].dma_address + sg[i].dma_length) - base; spin_lock_irqsave(&iommu->lock, flags); - sbus_strbuf_flush(iommu, base, size >> IO_PAGE_SHIFT); + sbus_strbuf_flush(iommu, base, size >> IO_PAGE_SHIFT, direction); spin_unlock_irqrestore(&iommu->lock, flags); } diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index 5fd16e42a045..0de7a3da79cd 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -16,4 +16,6 @@ #define IOPTE_CACHE 0x0000000000000010UL /* Cached (in UPA E-cache) */ #define IOPTE_WRITE 0x0000000000000002UL /* Writeable */ +#define IOMMU_NUM_CTXS 4096 + #endif /* !(_SPARC_IOMMU_H) */ diff --git a/include/asm-sparc64/pbm.h b/include/asm-sparc64/pbm.h index 92999631c819..4c15610a2bac 100644 --- a/include/asm-sparc64/pbm.h +++ b/include/asm-sparc64/pbm.h @@ -15,6 +15,7 @@ #include #include #include +#include /* The abstraction used here is that there are PCI controllers, * each with one (Sabre) or two (PSYCHO/SCHIZO) PCI bus modules @@ -40,9 +41,6 @@ struct pci_iommu { */ spinlock_t lock; - /* Context allocator. */ - unsigned int iommu_cur_ctx; - /* IOMMU page table, a linear array of ioptes. */ iopte_t *page_table; /* The page table itself. */ int page_table_sz_bits; /* log2 of ow many pages does it map? */ @@ -87,6 +85,10 @@ struct pci_iommu { u16 flush; } alloc_info[PBM_NCLUSTERS]; + /* CTX allocation. */ + unsigned long ctx_lowest_free; + unsigned long ctx_bitmap[IOMMU_NUM_CTXS / (sizeof(unsigned long) * 8)]; + /* Here a PCI controller driver describes the areas of * PCI memory space where DMA to/from physical memory * are addressed. Drivers interrogate the PCI layer -- cgit v1.2.3 From 7eb53d88230e23f83b2e20a78955e1412fa7bb26 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:42 -0700 Subject: [CPUFREQ] powernow-k7: don't print khz element of FSB. Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/powernow-k7.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c index 913f652623d9..80f01b00bada 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c @@ -592,7 +592,7 @@ static int __init powernow_cpu_init (struct cpufreq_policy *policy) printk(KERN_WARNING PFX "can not determine bus frequency\n"); return -EINVAL; } - dprintk("FSB: %3d.%03d MHz\n", fsb/1000, fsb%1000); + dprintk("FSB: %3dMHz\n", fsb/1000); if (dmi_check_system(powernow_dmi_table) || acpi_force) { printk (KERN_INFO PFX "PSB/PST known to be broken. Trying ACPI instead\n"); -- cgit v1.2.3 From 8282864a96ef0a7b88ee9e4b357e08504131394d Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:43 -0700 Subject: [CPUFREQ] speedstep-centrino: Pentium 4 - M (HT) support The Pentium 4 - Ms (HT) with CPUID 0xF34 and 0xF41 seem to support centrino-like enhanced speedstep; however, no "table" support is possible. Therefore, put NULL entries into speedstep-centrino.c Signed-off-by: Dominik Brodowski Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c index 07d5612dc00f..7dcbf70fc16f 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c @@ -54,6 +54,8 @@ enum { CPU_DOTHAN_A1, CPU_DOTHAN_A2, CPU_DOTHAN_B0, + CPU_MP4HT_D0, + CPU_MP4HT_E0, }; static const struct cpu_id cpu_ids[] = { @@ -61,6 +63,8 @@ static const struct cpu_id cpu_ids[] = { [CPU_DOTHAN_A1] = { 6, 13, 1 }, [CPU_DOTHAN_A2] = { 6, 13, 2 }, [CPU_DOTHAN_B0] = { 6, 13, 6 }, + [CPU_MP4HT_D0] = {15, 3, 4 }, + [CPU_MP4HT_E0] = {15, 4, 1 }, }; #define N_IDS (sizeof(cpu_ids)/sizeof(cpu_ids[0])) @@ -226,6 +230,8 @@ static struct cpu_model models[] = { &cpu_ids[CPU_DOTHAN_A1], NULL, 0, NULL }, { &cpu_ids[CPU_DOTHAN_A2], NULL, 0, NULL }, { &cpu_ids[CPU_DOTHAN_B0], NULL, 0, NULL }, + { &cpu_ids[CPU_MP4HT_D0], NULL, 0, NULL }, + { &cpu_ids[CPU_MP4HT_E0], NULL, 0, NULL }, { NULL, } }; -- cgit v1.2.3 From 6f4095af6df7aa365ecf18473c8b05c5f6c38a78 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:44 -0700 Subject: [CPUFREQ] speedstep-smi: it works on at least one P4M The speedstep-smi driver actually works on >=1 notebook with a Pentium 4-M CPU where all other cpufreq drivers fail. Therefore, allow speedstep-smi on P4Ms again, but warn users of likely failure Signed-off-by: Dominik Brodowski Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/speedstep-smi.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c index 79440b3f087e..b25fb6b635ae 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c @@ -357,6 +357,9 @@ static int __init speedstep_init(void) case SPEEDSTEP_PROCESSOR_PIII_C: case SPEEDSTEP_PROCESSOR_PIII_C_EARLY: break; + case SPEEDSTEP_PROCESSOR_P4M: + printk(KERN_INFO "speedstep-smi: you're trying to use this cpufreq driver on a Pentium 4-based CPU. Most likely it will not work.\n"); + break; default: speedstep_processor = 0; } -- cgit v1.2.3 From bf6fc9fd2d848d06b8f6c4caccef1dba9ef8c4c6 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:45 -0700 Subject: [CPUFREQ] AMD Elan SC520 cpufreq driver. From: Sean Young Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/Kconfig | 14 ++- arch/i386/kernel/cpu/cpufreq/Makefile | 1 + arch/i386/kernel/cpu/cpufreq/sc520_freq.c | 186 ++++++++++++++++++++++++++++++ 3 files changed, 200 insertions(+), 1 deletion(-) create mode 100644 arch/i386/kernel/cpu/cpufreq/sc520_freq.c (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig index f25ffd74235c..0f1eb507233b 100644 --- a/arch/i386/kernel/cpu/cpufreq/Kconfig +++ b/arch/i386/kernel/cpu/cpufreq/Kconfig @@ -23,7 +23,7 @@ config X86_ACPI_CPUFREQ If in doubt, say N. config ELAN_CPUFREQ - tristate "AMD Elan" + tristate "AMD Elan SC400 and SC410" select CPU_FREQ_TABLE depends on X86_ELAN ---help--- @@ -38,6 +38,18 @@ config ELAN_CPUFREQ If in doubt, say N. +config SC520_CPUFREQ + tristate "AMD Elan SC520" + select CPU_FREQ_TABLE + depends on X86_ELAN + ---help--- + This adds the CPUFreq driver for AMD Elan SC520 processor. + + For details, take a look at . + + If in doubt, say N. + + config X86_POWERNOW_K6 tristate "AMD Mobile K6-2/K6-3 PowerNow!" select CPU_FREQ_TABLE diff --git a/arch/i386/kernel/cpu/cpufreq/Makefile b/arch/i386/kernel/cpu/cpufreq/Makefile index a922e97aeedd..2e894f1c8910 100644 --- a/arch/i386/kernel/cpu/cpufreq/Makefile +++ b/arch/i386/kernel/cpu/cpufreq/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_X86_POWERNOW_K7) += powernow-k7.o obj-$(CONFIG_X86_POWERNOW_K8) += powernow-k8.o obj-$(CONFIG_X86_LONGHAUL) += longhaul.o obj-$(CONFIG_ELAN_CPUFREQ) += elanfreq.o +obj-$(CONFIG_SC520_CPUFREQ) += sc520_freq.o obj-$(CONFIG_X86_LONGRUN) += longrun.o obj-$(CONFIG_X86_GX_SUSPMOD) += gx-suspmod.o obj-$(CONFIG_X86_SPEEDSTEP_ICH) += speedstep-ich.o diff --git a/arch/i386/kernel/cpu/cpufreq/sc520_freq.c b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c new file mode 100644 index 000000000000..ef457d50f4ac --- /dev/null +++ b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c @@ -0,0 +1,186 @@ +/* + * sc520_freq.c: cpufreq driver for the AMD Elan sc520 + * + * Copyright (C) 2005 Sean Young + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Based on elanfreq.c + * + * 2005-03-30: - initial revision + */ + +#include +#include +#include + +#include +#include + +#include +#include +#include + +#define MMCR_BASE 0xfffef000 /* The default base address */ +#define OFFS_CPUCTL 0x2 /* CPU Control Register */ + +static __u8 __iomem *cpuctl; + +#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "sc520_freq", msg) + +static struct cpufreq_frequency_table sc520_freq_table[] = { + {0x01, 100000}, + {0x02, 133000}, + {0, CPUFREQ_TABLE_END}, +}; + +static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu) +{ + u8 clockspeed_reg = *cpuctl; + + switch (clockspeed_reg & 0x03) { + default: + printk(KERN_ERR "sc520_freq: error: cpuctl register has unexpected value %02x\n", clockspeed_reg); + case 0x01: + return 100000; + case 0x02: + return 133000; + } +} + +static void sc520_freq_set_cpu_state (unsigned int state) +{ + + struct cpufreq_freqs freqs; + u8 clockspeed_reg; + + freqs.old = sc520_freq_get_cpu_frequency(0); + freqs.new = sc520_freq_table[state].frequency; + freqs.cpu = 0; /* AMD Elan is UP */ + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + + dprintk("attempting to set frequency to %i kHz\n", + sc520_freq_table[state].frequency); + + local_irq_disable(); + + clockspeed_reg = *cpuctl & ~0x03; + *cpuctl = clockspeed_reg | sc520_freq_table[state].index; + + local_irq_enable(); + + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); +}; + +static int sc520_freq_verify (struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &sc520_freq_table[0]); +} + +static int sc520_freq_target (struct cpufreq_policy *policy, + unsigned int target_freq, + unsigned int relation) +{ + unsigned int newstate = 0; + + if (cpufreq_frequency_table_target(policy, sc520_freq_table, target_freq, relation, &newstate)) + return -EINVAL; + + sc520_freq_set_cpu_state(newstate); + + return 0; +} + + +/* + * Module init and exit code + */ + +static int sc520_freq_cpu_init(struct cpufreq_policy *policy) +{ + struct cpuinfo_x86 *c = cpu_data; + int result; + + /* capability check */ + if (c->x86_vendor != X86_VENDOR_AMD || + c->x86 != 4 || c->x86_model != 9) + return -ENODEV; + + /* cpuinfo and default policy values */ + policy->governor = CPUFREQ_DEFAULT_GOVERNOR; + policy->cpuinfo.transition_latency = 1000000; /* 1ms */ + policy->cur = sc520_freq_get_cpu_frequency(0); + + result = cpufreq_frequency_table_cpuinfo(policy, sc520_freq_table); + if (result) + return (result); + + cpufreq_frequency_table_get_attr(sc520_freq_table, policy->cpu); + + return 0; +} + + +static int sc520_freq_cpu_exit(struct cpufreq_policy *policy) +{ + cpufreq_frequency_table_put_attr(policy->cpu); + return 0; +} + + +static struct freq_attr* sc520_freq_attr[] = { + &cpufreq_freq_attr_scaling_available_freqs, + NULL, +}; + + +static struct cpufreq_driver sc520_freq_driver = { + .get = sc520_freq_get_cpu_frequency, + .verify = sc520_freq_verify, + .target = sc520_freq_target, + .init = sc520_freq_cpu_init, + .exit = sc520_freq_cpu_exit, + .name = "sc520_freq", + .owner = THIS_MODULE, + .attr = sc520_freq_attr, +}; + + +static int __init sc520_freq_init(void) +{ + struct cpuinfo_x86 *c = cpu_data; + + /* Test if we have the right hardware */ + if(c->x86_vendor != X86_VENDOR_AMD || + c->x86 != 4 || c->x86_model != 9) { + dprintk("no Elan SC520 processor found!\n"); + return -ENODEV; + } + cpuctl = ioremap((unsigned long)(MMCR_BASE + OFFS_CPUCTL), 1); + if(!cpuctl) { + printk(KERN_ERR "sc520_freq: error: failed to remap memory\n"); + return -ENOMEM; + } + + return cpufreq_register_driver(&sc520_freq_driver); +} + + +static void __exit sc520_freq_exit(void) +{ + cpufreq_unregister_driver(&sc520_freq_driver); + iounmap(cpuctl); +} + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sean Young "); +MODULE_DESCRIPTION("cpufreq driver for AMD's Elan sc520 CPU"); + +module_init(sc520_freq_init); +module_exit(sc520_freq_exit); + -- cgit v1.2.3 From 91350ed49bf3613e243c2e216228cd4ae8f32516 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:45 -0700 Subject: [CPUFREQ] Recalibrate cpu_khz [1/2] We have to recalibrate cpu_khz in order to use the current FID instead the max FID since some BIOS do not put the processor at maximum frequency at POST. Also, some BIOS will change the processor frequency at our back after cpu_khz was calibrate. Finally, this will fix a long standing bug when we do something like this: # rmmod powernow-k7 # modprobe powernow-k7 Signed-off-by: Bruno Ducrot Signed-off-by: Andrew Morton Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/powernow-k7.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c index 80f01b00bada..5c530064eb74 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c @@ -23,6 +23,7 @@ #include #include +#include #include #include #include @@ -586,8 +587,12 @@ static int __init powernow_cpu_init (struct cpufreq_policy *policy) rdmsrl (MSR_K7_FID_VID_STATUS, fidvidstatus.val); - /* A K7 with powernow technology is set to max frequency by BIOS */ - fsb = (10 * cpu_khz) / fid_codes[fidvidstatus.bits.MFID]; + /* recalibrate cpu_khz */ + result = recalibrate_cpu_khz(); + if (result) + return result; + + fsb = (10 * cpu_khz) / fid_codes[fidvidstatus.bits.CFID]; if (!fsb) { printk(KERN_WARNING PFX "can not determine bus frequency\n"); return -EINVAL; -- cgit v1.2.3 From c5d28fb297efaa97c4b90e36f9dff3066e7f2778 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:46 -0700 Subject: [CPUFREQ] Recalibrate cpu_khz [2/2] Some cpufreq drivers (at that time, only powernow-k7) need to recalibrate the cpu_khz at runtime. Signed-off-by: Bruno Ducrot Signed-off-by: Andrew Morton Signed-off-by: Dave Jones --- arch/i386/kernel/timers/common.c | 6 ++++-- arch/i386/kernel/timers/timer_tsc.c | 20 ++++++++++++++++++++ include/asm-i386/timer.h | 1 + 3 files changed, 25 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/timers/common.c b/arch/i386/kernel/timers/common.c index f7f90005e22e..8e201219f525 100644 --- a/arch/i386/kernel/timers/common.c +++ b/arch/i386/kernel/timers/common.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include @@ -24,7 +25,7 @@ #define CALIBRATE_TIME (5 * 1000020/HZ) -unsigned long __init calibrate_tsc(void) +unsigned long calibrate_tsc(void) { mach_prepare_counter(); @@ -139,7 +140,7 @@ bad_calibration: #endif /* calculate cpu_khz */ -void __init init_cpu_khz(void) +void init_cpu_khz(void) { if (cpu_has_tsc) { unsigned long tsc_quotient = calibrate_tsc(); @@ -158,3 +159,4 @@ void __init init_cpu_khz(void) } } } + diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c index 7926d967be00..180444d87824 100644 --- a/arch/i386/kernel/timers/timer_tsc.c +++ b/arch/i386/kernel/timers/timer_tsc.c @@ -320,6 +320,26 @@ core_initcall(cpufreq_tsc); static inline void cpufreq_delayed_get(void) { return; } #endif +int recalibrate_cpu_khz(void) +{ +#ifndef CONFIG_SMP + unsigned long cpu_khz_old = cpu_khz; + + if (cpu_has_tsc) { + init_cpu_khz(); + cpu_data[0].loops_per_jiffy = + cpufreq_scale(cpu_data[0].loops_per_jiffy, + cpu_khz_old, + cpu_khz); + return 0; + } else + return -ENODEV; +#else + return -ENODEV; +#endif +} +EXPORT_SYMBOL(recalibrate_cpu_khz); + static void mark_offset_tsc(void) { unsigned long lost,delay; diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h index 40c54f69780e..c34709849839 100644 --- a/include/asm-i386/timer.h +++ b/include/asm-i386/timer.h @@ -53,6 +53,7 @@ extern struct init_timer_opts timer_cyclone_init; extern unsigned long calibrate_tsc(void); extern void init_cpu_khz(void); +extern int recalibrate_cpu_khz(void); #ifdef CONFIG_HPET_TIMER extern struct init_timer_opts timer_hpet_init; extern unsigned long calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr); -- cgit v1.2.3 From 065b807ca1f5bdbeb081e3cf75ac8de9be8ac212 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:46 -0700 Subject: [CPUFREQ] dual-core powernow-k8 With the release of the dual-core AMD Opterons last week, it's high time that cpufreq supported them. The attached patch applies cleanly to 2.6.12-rc3 and updates powernow-k8 to support the latest Athlon 64 and Opteron processors. Update the driver to version 1.40.0 and provide support for dual-core processors. Signed-off-by: Mark Langsdorf Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 113 +++++++++++++++++++---------- arch/i386/kernel/cpu/cpufreq/powernow-k8.h | 15 ++++ 2 files changed, 91 insertions(+), 37 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index a65ff7e32e5d..10cc096c0ade 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -4,7 +4,7 @@ * GNU general public license version 2. See "COPYING" or * http://www.gnu.org/licenses/gpl.html * - * Support : paul.devriendt@amd.com + * Support : mark.langsdorf@amd.com * * Based on the powernow-k7.c module written by Dave Jones. * (C) 2003 Dave Jones on behalf of SuSE Labs @@ -15,12 +15,13 @@ * * Valuable input gratefully received from Dave Jones, Pavel Machek, * Dominik Brodowski, and others. + * Originally developed by Paul Devriendt. * Processor information obtained from Chapter 9 (Power and Thermal Management) * of the "BIOS and Kernel Developer's Guide for the AMD Athlon 64 and AMD * Opteron Processors" available for download from www.amd.com * * Tables for specific CPUs can be infrerred from - * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30430.pdf + * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30430.pdf */ #include @@ -30,6 +31,7 @@ #include #include #include +#include #include #include @@ -42,7 +44,7 @@ #define PFX "powernow-k8: " #define BFX PFX "BIOS error: " -#define VERSION "version 1.00.09e" +#define VERSION "version 1.40.2" #include "powernow-k8.h" /* serialize freq changes */ @@ -50,6 +52,10 @@ static DECLARE_MUTEX(fidvid_sem); static struct powernow_k8_data *powernow_data[NR_CPUS]; +#ifndef CONFIG_SMP +static cpumask_t cpu_core_map[1]; +#endif + /* Return a frequency in MHz, given an input fid */ static u32 find_freq_from_fid(u32 fid) { @@ -274,11 +280,18 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid { u32 rvosteps = data->rvo; u32 savefid = data->currfid; + u32 maxvid, lo; dprintk("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, reqvid 0x%x, rvo 0x%x\n", smp_processor_id(), data->currfid, data->currvid, reqvid, data->rvo); + rdmsr(MSR_FIDVID_STATUS, lo, maxvid); + maxvid = 0x1f & (maxvid >> 16); + dprintk("ph1 maxvid=0x%x\n", maxvid); + if (reqvid < maxvid) /* lower numbers are higher voltages */ + reqvid = maxvid; + while (data->currvid > reqvid) { dprintk("ph1: curr 0x%x, req vid 0x%x\n", data->currvid, reqvid); @@ -286,8 +299,8 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid return 1; } - while ((rvosteps > 0) && ((data->rvo + data->currvid) > reqvid)) { - if (data->currvid == 0) { + while ((rvosteps > 0) && ((data->rvo + data->currvid) > reqvid)) { + if (data->currvid == maxvid) { rvosteps = 0; } else { dprintk("ph1: changing vid for rvo, req 0x%x\n", @@ -671,7 +684,7 @@ static int find_psb_table(struct powernow_k8_data *data) * BIOS and Kernel Developer's Guide, which is available on * www.amd.com */ - printk(KERN_ERR PFX "BIOS error - no PSB\n"); + printk(KERN_INFO PFX "BIOS error - no PSB or ACPI _PSS objects\n"); return -ENODEV; } @@ -695,7 +708,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) struct cpufreq_frequency_table *powernow_table; if (acpi_processor_register_performance(&data->acpi_data, data->cpu)) { - dprintk("register performance failed\n"); + dprintk("register performance failed: bad ACPI data\n"); return -EIO; } @@ -746,22 +759,23 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) continue; } - if (fid < HI_FID_TABLE_BOTTOM) { - if (cntlofreq) { - /* if both entries are the same, ignore this - * one... - */ - if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) || - (powernow_table[i].index != powernow_table[cntlofreq].index)) { - printk(KERN_ERR PFX "Too many lo freq table entries\n"); - goto err_out_mem; - } - - dprintk("double low frequency table entry, ignoring it.\n"); - powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID; - continue; - } else - cntlofreq = i; + /* verify only 1 entry from the lo frequency table */ + if (fid < HI_FID_TABLE_BOTTOM) { + if (cntlofreq) { + /* if both entries are the same, ignore this + * one... + */ + if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) || + (powernow_table[i].index != powernow_table[cntlofreq].index)) { + printk(KERN_ERR PFX "Too many lo freq table entries\n"); + goto err_out_mem; + } + + dprintk("double low frequency table entry, ignoring it.\n"); + powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID; + continue; + } else + cntlofreq = i; } if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) { @@ -816,7 +830,7 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde { u32 fid; u32 vid; - int res; + int res, i; struct cpufreq_freqs freqs; dprintk("cpu %d transition to index %u\n", smp_processor_id(), index); @@ -841,7 +855,8 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde } if ((fid < HI_FID_TABLE_BOTTOM) && (data->currfid < HI_FID_TABLE_BOTTOM)) { - printk("ignoring illegal change in lo freq table-%x to 0x%x\n", + printk(KERN_ERR PFX + "ignoring illegal change in lo freq table-%x to 0x%x\n", data->currfid, fid); return 1; } @@ -850,18 +865,20 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde smp_processor_id(), fid, vid); freqs.cpu = data->cpu; - freqs.old = find_khz_freq_from_fid(data->currfid); freqs.new = find_khz_freq_from_fid(fid); - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + for_each_cpu_mask(i, cpu_core_map[data->cpu]) { + freqs.cpu = i; + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + } - down(&fidvid_sem); res = transition_fid_vid(data, fid, vid); - up(&fidvid_sem); freqs.new = find_khz_freq_from_fid(data->currfid); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - + for_each_cpu_mask(i, cpu_core_map[data->cpu]) { + freqs.cpu = i; + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + } return res; } @@ -874,6 +891,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi u32 checkvid = data->currvid; unsigned int newstate; int ret = -EIO; + int i; /* only run on specific CPU from here on */ oldmask = current->cpus_allowed; @@ -902,22 +920,41 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi data->currfid, data->currvid); if ((checkvid != data->currvid) || (checkfid != data->currfid)) { - printk(KERN_ERR PFX - "error - out of sync, fid 0x%x 0x%x, vid 0x%x 0x%x\n", - checkfid, data->currfid, checkvid, data->currvid); + printk(KERN_INFO PFX + "error - out of sync, fix 0x%x 0x%x, vid 0x%x 0x%x\n", + checkfid, data->currfid, checkvid, data->currvid); } if (cpufreq_frequency_table_target(pol, data->powernow_table, targfreq, relation, &newstate)) goto err_out; + down(&fidvid_sem); + + for_each_cpu_mask(i, cpu_core_map[pol->cpu]) { + /* make sure the sibling is initialized */ + if (!powernow_data[i]) { + ret = 0; + up(&fidvid_sem); + goto err_out; + } + } + powernow_k8_acpi_pst_values(data, newstate); if (transition_frequency(data, newstate)) { printk(KERN_ERR PFX "transition frequency failed\n"); ret = 1; + up(&fidvid_sem); goto err_out; } + /* Update all the fid/vids of our siblings */ + for_each_cpu_mask(i, cpu_core_map[pol->cpu]) { + powernow_data[i]->currvid = data->currvid; + powernow_data[i]->currfid = data->currfid; + } + up(&fidvid_sem); + pol->cur = find_khz_freq_from_fid(data->currfid); ret = 0; @@ -962,7 +999,7 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol) */ if ((num_online_cpus() != 1) || (num_possible_cpus() != 1)) { - printk(KERN_INFO PFX "MP systems not supported by PSB BIOS structure\n"); + printk(KERN_ERR PFX "MP systems not supported by PSB BIOS structure\n"); kfree(data); return -ENODEV; } @@ -1003,6 +1040,7 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol) schedule(); pol->governor = CPUFREQ_DEFAULT_GOVERNOR; + pol->cpus = cpu_core_map[pol->cpu]; /* Take a crude guess here. * That guess was in microseconds, so multiply with 1000 */ @@ -1069,7 +1107,7 @@ static unsigned int powernowk8_get (unsigned int cpu) return 0; } preempt_disable(); - + if (query_current_values_with_pending_wait(data)) goto out; @@ -1127,9 +1165,10 @@ static void __exit powernowk8_exit(void) cpufreq_unregister_driver(&cpufreq_amd64_driver); } -MODULE_AUTHOR("Paul Devriendt "); +MODULE_AUTHOR("Paul Devriendt and Mark Langsdorf Date: Tue, 31 May 2005 19:03:51 -0700 Subject: [CPUFREQ] longhaul - disable PCI mastering around transition. The spec states that we have to do this, which is *horrid*. Based on code from: Ken Staton Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/longhaul.c | 49 ++++++++++++++++++++++++++++++--- 1 file changed, 45 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index ab0f9f5aac11..8ea545e35b3a 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -120,6 +121,11 @@ static void do_powersaver(union msr_longhaul *longhaul, unsigned int clock_ratio_index) { int version; + unsigned long flags; + struct pci_dev *dev; + int i; + u16 pci_cmd; + u16 cmd_state[64]; switch (cpu_model) { case CPU_EZRA_T: @@ -137,17 +143,52 @@ static void do_powersaver(union msr_longhaul *longhaul, longhaul->bits.SoftBusRatio4 = (clock_ratio_index & 0x10) >> 4; longhaul->bits.EnableSoftBusRatio = 1; longhaul->bits.RevisionKey = 0; - local_irq_disable(); - wrmsrl(MSR_VIA_LONGHAUL, longhaul->val); + + preempt_disable(); + local_irq_save(flags); + + /* + * get current pci bus master state for all devices + * and clear bus master bit + */ + dev = NULL; + i = 0; + do { + dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev); + if (dev != NULL) { + pci_read_config_word(dev, PCI_COMMAND, &pci_cmd); + cmd_state[i++] = pci_cmd; + pci_cmd &= ~PCI_COMMAND_MASTER; + pci_write_config_word(dev, PCI_COMMAND, pci_cmd); + } + } while (dev != NULL); + local_irq_enable(); + + __hlt(); + wrmsrl(MSR_VIA_LONGHAUL, longhaul->val); __hlt(); + local_irq_disable(); + + /* restore pci bus master state for all devices */ + dev = NULL; + i = 0; + do { + dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev); + if (dev != NULL) { + pci_cmd = cmd_state[i++]; + pci_write_config_byte(dev, PCI_COMMAND, pci_cmd); + } + } while (dev != NULL); + local_irq_restore(flags); + preempt_enable(); + + /* disable bus ratio bit */ rdmsrl(MSR_VIA_LONGHAUL, longhaul->val); longhaul->bits.EnableSoftBusRatio = 0; longhaul->bits.RevisionKey = version; - local_irq_disable(); wrmsrl(MSR_VIA_LONGHAUL, longhaul->val); - local_irq_enable(); } /** -- cgit v1.2.3 From 1174631418fbb2c0c6946081b0b7d391f5d92861 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:51 -0700 Subject: [CPUFREQ] Longhaul: Magic timer frobbing. As mandated by the spec, disable timer around transitions. From code by : Ken Staton --- arch/i386/kernel/cpu/cpufreq/longhaul.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index 8ea545e35b3a..48899f0956f7 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -120,9 +120,10 @@ static int longhaul_get_cpu_mult(void) static void do_powersaver(union msr_longhaul *longhaul, unsigned int clock_ratio_index) { - int version; - unsigned long flags; struct pci_dev *dev; + unsigned long flags; + unsigned int tmp_mask; + int version; int i; u16 pci_cmd; u16 cmd_state[64]; @@ -163,6 +164,10 @@ static void do_powersaver(union msr_longhaul *longhaul, } } while (dev != NULL); + tmp_mask=inb(0x21); /* works on C3. save mask. */ + outb(0xFE,0x21); /* TMR0 only */ + outb(0xFF,0x80); /* delay */ + local_irq_enable(); __hlt(); @@ -171,6 +176,8 @@ static void do_powersaver(union msr_longhaul *longhaul, local_irq_disable(); + outb(tmp_mask,0x21); /* restore mask */ + /* restore pci bus master state for all devices */ dev = NULL; i = 0; -- cgit v1.2.3 From 6778bae0f2f1d4af1b8bb876c992ea094ee958b4 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:51 -0700 Subject: [CPUFREQ] longhaul - adjust transition latency. From patch by: Ken Staton Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/longhaul.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index 48899f0956f7..04e3563da4fe 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -626,7 +626,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy) longhaul_setup_voltagescaling(); policy->governor = CPUFREQ_DEFAULT_GOVERNOR; - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; + policy->cpuinfo.transition_latency = 200000; /* nsec */ policy->cur = calc_speed(longhaul_get_cpu_mult()); ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table); -- cgit v1.2.3 From f94ea640a28230f82a4395c34e1290748a9f6586 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 31 May 2005 19:03:52 -0700 Subject: [CPUFREQ] Typos. cpfureq developers cant spel. Signed-off-by: Dave Jones --- arch/i386/kernel/cpu/cpufreq/speedstep-lib.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c index 8ba430a9c3a2..d368b3f5fce8 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c @@ -336,7 +336,7 @@ unsigned int speedstep_get_freqs(unsigned int processor, if (!prev_speed) return -EIO; - dprintk("previous seped is %u\n", prev_speed); + dprintk("previous speed is %u\n", prev_speed); local_irq_save(flags); @@ -348,7 +348,7 @@ unsigned int speedstep_get_freqs(unsigned int processor, goto out; } - dprintk("low seped is %u\n", *low_speed); + dprintk("low speed is %u\n", *low_speed); /* switch to high state */ set_state(SPEEDSTEP_HIGH); @@ -358,7 +358,7 @@ unsigned int speedstep_get_freqs(unsigned int processor, goto out; } - dprintk("high seped is %u\n", *high_speed); + dprintk("high speed is %u\n", *high_speed); if (*low_speed == *high_speed) { ret = -ENODEV; -- cgit v1.2.3 From 88314ee73fd75eb32abdcb3119cd303c116d4500 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 31 May 2005 19:13:52 -0700 Subject: [SPARC64]: Refine PCI strbuf ctx-based flush. The initial peek read PIO of the match register is just a waste. Just do the flush writes first, as that is more efficient. Signed-off-by: David S. Miller --- arch/sparc64/kernel/pci_iommu.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index 1807876f8c36..2803bc7c2c79 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -422,14 +422,12 @@ static void pci_strbuf_flush(struct pci_strbuf *strbuf, struct pci_iommu *iommu, flushreg = strbuf->strbuf_ctxflush; matchreg = PCI_STC_CTXMATCH_ADDR(strbuf, ctx); - if (pci_iommu_read(matchreg) == 0) - goto do_flush_sync; - pci_iommu_write(flushreg, ctx); - if ((val = pci_iommu_read(matchreg)) == 0) + val = pci_iommu_read(matchreg); + val &= 0xffff; + if (!val) goto do_flush_sync; - val &= 0xffff; while (val) { if (val & 0x1) pci_iommu_write(flushreg, ctx); -- cgit v1.2.3 From 44e4665cc9d856d15f04a012c78e4ab48f71290b Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 1 Jun 2005 14:54:25 +1000 Subject: [PATCH] ppc64: Fix a device-tree bug on Apple's Apple's Open Firmware has a funny bug when creating the /cpus nodes where it leaves a dangling '\0' character in the CPU name which ends up appearing in the full path of the node. This is bogus and confuses /proc/device-tree badly. This patch strips those bogus zero's from the node full path when reading the device-tree from Open Firmware. The "name" property is not modified and still contains the spurrious 0 (it basically contains 0 tailing 0 instead of one) but that shouldn't be a problem. An equivalent patch for ppc32 will follow shortly Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/prom_init.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c index bc53967a8643..3de950de3671 100644 --- a/arch/ppc64/kernel/prom_init.c +++ b/arch/ppc64/kernel/prom_init.c @@ -1566,7 +1566,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start, { int l, align; phandle child; - char *namep, *prev_name, *sstart; + char *namep, *prev_name, *sstart, *p, *ep; unsigned long soff; unsigned char *valp; unsigned long offset = reloc_offset(); @@ -1588,6 +1588,14 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start, call_prom("package-to-path", 3, 1, node, namep, l); } namep[l] = '\0'; + /* Fixup an Apple bug where they have bogus \0 chars in the + * middle of the path in some properties + */ + for (p = namep, ep = namep + l; p < ep; p++) + if (*p == '\0') { + memmove(p, p+1, ep - p); + ep--; l--; + } *mem_start = _ALIGN(((unsigned long) namep) + strlen(namep) + 1, 4); } -- cgit v1.2.3 From f93ea2349832c040bdf66dc7495aa87bfe3394b8 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 1 Jun 2005 17:02:22 +1000 Subject: [PATCH] ppc32: Apple device-tree bug fix This is the ppc32 patch equivalent to the just posted ppc64 one working around a bug in Apple device-trees regarding the "cpus" nodes. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/ppc/syslib/prom_init.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arch') diff --git a/arch/ppc/syslib/prom_init.c b/arch/ppc/syslib/prom_init.c index 2cee87137f2e..7f15136830f4 100644 --- a/arch/ppc/syslib/prom_init.c +++ b/arch/ppc/syslib/prom_init.c @@ -626,8 +626,18 @@ inspect_node(phandle node, struct device_node *dad, l = call_prom("package-to-path", 3, 1, node, mem_start, mem_end - mem_start); if (l >= 0) { + char *p, *ep; + np->full_name = PTRUNRELOC((char *) mem_start); *(char *)(mem_start + l) = 0; + /* Fixup an Apple bug where they have bogus \0 chars in the + * middle of the path in some properties + */ + for (p = (char *)mem_start, ep = p + l; p < ep; p++) + if ((*p) == '\0') { + memmove(p, p+1, ep - p); + ep--; + } mem_start = ALIGNUL(mem_start + l + 1); } -- cgit v1.2.3 From 5f64f73957f6cae3222f97f2599199ee562f7f3f Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 1 Jun 2005 17:07:27 +1000 Subject: [PATCH] ppc32/ppc64: cleanup /proc/device-tree This cleans up the /proc/device-tree representation of the Open Firmware device-tree on ppc and ppc64. It does the following things: - Workaround an issue in some Apple device-trees where a property may exist with the same name as a child node of the parent. We now simply "drop" the property instead of creating duplicate entries in /proc with random result... - Do not try to chop off the "@0" at the end of a node name whose unit address is 0. This is not useful, inconsistent, and the code was buggy and didn't always work anyway. - Do not create symlinks for the short name and unit address parts of a node. These were never really used, bloated the memory footprint of the device-tree with useless struct proc_dir_entry and their matching dentry and inode cache bloat. This results in smaller code, smaller memory footprint, and a more accurate view of the tree presented to userland. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/pSeries_reconfig.c | 8 --- fs/proc/proc_devtree.c | 105 +++++++++++++---------------------- include/asm-ppc64/prom.h | 13 +---- 3 files changed, 39 insertions(+), 87 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/pSeries_reconfig.c b/arch/ppc64/kernel/pSeries_reconfig.c index cb5443f2e49b..dc2a69d412a2 100644 --- a/arch/ppc64/kernel/pSeries_reconfig.c +++ b/arch/ppc64/kernel/pSeries_reconfig.c @@ -47,14 +47,6 @@ static void remove_node_proc_entries(struct device_node *np) remove_proc_entry(pp->name, np->pde); pp = pp->next; } - - /* Assuming that symlinks have the same parent directory as - * np->pde. - */ - if (np->name_link) - remove_proc_entry(np->name_link->name, parent->pde); - if (np->addr_link) - remove_proc_entry(np->addr_link->name, parent->pde); if (np->pde) remove_proc_entry(np->pde->name, parent->pde); } diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c index 67423c696c0a..6fd57f154197 100644 --- a/fs/proc/proc_devtree.c +++ b/fs/proc/proc_devtree.c @@ -12,15 +12,8 @@ #include #ifndef HAVE_ARCH_DEVTREE_FIXUPS -static inline void set_node_proc_entry(struct device_node *np, struct proc_dir_entry *de) -{ -} - -static void inline set_node_name_link(struct device_node *np, struct proc_dir_entry *de) -{ -} - -static void inline set_node_addr_link(struct device_node *np, struct proc_dir_entry *de) +static inline void set_node_proc_entry(struct device_node *np, + struct proc_dir_entry *de) { } #endif @@ -58,89 +51,67 @@ static int property_read_proc(char *page, char **start, off_t off, /* * Process a node, adding entries for its children and its properties. */ -void proc_device_tree_add_node(struct device_node *np, struct proc_dir_entry *de) +void proc_device_tree_add_node(struct device_node *np, + struct proc_dir_entry *de) { struct property *pp; struct proc_dir_entry *ent; - struct device_node *child, *sib; - const char *p, *at; - int l; - struct proc_dir_entry *list, **lastp, *al; + struct device_node *child; + struct proc_dir_entry *list = NULL, **lastp; + const char *p; set_node_proc_entry(np, de); lastp = &list; - for (pp = np->properties; pp != 0; pp = pp->next) { - /* - * Unfortunately proc_register puts each new entry - * at the beginning of the list. So we rearrange them. - */ - ent = create_proc_read_entry(pp->name, strncmp(pp->name, "security-", 9) ? - S_IRUGO : S_IRUSR, de, property_read_proc, pp); - if (ent == 0) - break; - if (!strncmp(pp->name, "security-", 9)) - ent->size = 0; /* don't leak number of password chars */ - else - ent->size = pp->length; - *lastp = ent; - lastp = &ent->next; - } - child = NULL; - while ((child = of_get_next_child(np, child))) { + for (child = NULL; (child = of_get_next_child(np, child));) { p = strrchr(child->full_name, '/'); if (!p) p = child->full_name; else ++p; - /* chop off '@0' if the name ends with that */ - l = strlen(p); - if (l > 2 && p[l-2] == '@' && p[l-1] == '0') - l -= 2; ent = proc_mkdir(p, de); if (ent == 0) break; *lastp = ent; + ent->next = NULL; lastp = &ent->next; proc_device_tree_add_node(child, ent); - - /* - * If we left the address part on the name, consider - * adding symlinks from the name and address parts. - */ - if (p[l] != 0 || (at = strchr(p, '@')) == 0) - continue; - + } + of_node_put(child); + for (pp = np->properties; pp != 0; pp = pp->next) { /* - * If this is the first node with a given name property, - * add a symlink with the name property as its name. + * Yet another Apple device-tree bogosity: on some machines, + * they have properties & nodes with the same name. Those + * properties are quite unimportant for us though, thus we + * simply "skip" them here, but we do have to check. */ - sib = NULL; - while ((sib = of_get_next_child(np, sib)) && sib != child) - if (sib->name && strcmp(sib->name, child->name) == 0) - break; - if (sib == child && strncmp(p, child->name, l) != 0) { - al = proc_symlink(child->name, de, ent->name); - if (al == 0) { - of_node_put(sib); + for (ent = list; ent != NULL; ent = ent->next) + if (!strcmp(ent->name, pp->name)) break; - } - set_node_name_link(child, al); - *lastp = al; - lastp = &al->next; + if (ent != NULL) { + printk(KERN_WARNING "device-tree: property \"%s\" name" + " conflicts with node in %s\n", pp->name, + np->full_name); + continue; } - of_node_put(sib); + /* - * Add another directory with the @address part as its name. + * Unfortunately proc_register puts each new entry + * at the beginning of the list. So we rearrange them. */ - al = proc_symlink(at, de, ent->name); - if (al == 0) + ent = create_proc_read_entry(pp->name, + strncmp(pp->name, "security-", 9) + ? S_IRUGO : S_IRUSR, de, + property_read_proc, pp); + if (ent == 0) break; - set_node_addr_link(child, al); - *lastp = al; - lastp = &al->next; + if (!strncmp(pp->name, "security-", 9)) + ent->size = 0; /* don't leak number of password chars */ + else + ent->size = pp->length; + ent->next = NULL; + *lastp = ent; + lastp = &ent->next; } - of_node_put(child); - *lastp = NULL; de->subdir = list; } diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h index 2440a2c90ae9..04b1a84f7ca3 100644 --- a/include/asm-ppc64/prom.h +++ b/include/asm-ppc64/prom.h @@ -147,9 +147,7 @@ struct device_node { struct device_node *sibling; struct device_node *next; /* next device of same type */ struct device_node *allnext; /* next in list of all nodes */ - struct proc_dir_entry *pde; /* this node's proc directory */ - struct proc_dir_entry *name_link; /* name symlink */ - struct proc_dir_entry *addr_link; /* addr symlink */ + struct proc_dir_entry *pde; /* this node's proc directory */ struct kref kref; unsigned long _flags; }; @@ -174,15 +172,6 @@ static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_e dn->pde = de; } -static void inline set_node_name_link(struct device_node *dn, struct proc_dir_entry *de) -{ - dn->name_link = de; -} - -static void inline set_node_addr_link(struct device_node *dn, struct proc_dir_entry *de) -{ - dn->addr_link = de; -} /* OBSOLETE: Old stlye node lookup */ extern struct device_node *find_devices(const char *name); -- cgit v1.2.3 From b655913bf364603d17ad770dc4fb80e60555a255 Mon Sep 17 00:00:00 2001 From: Peter Chubb Date: Tue, 31 May 2005 22:34:00 -0700 Subject: [IA64] Cleanup compile warnings for ski config The attached patch cleans up a compilation warning when ACPI is turned off (i.e., when compiling for the Ski simulator). Signed-off-by: Tony Luck --- arch/ia64/kernel/mca.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 2c75741dcc66..736e328b5e61 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1103,8 +1103,6 @@ ia64_mca_cpe_int_caller(int cpe_irq, void *arg, struct pt_regs *ptregs) return IRQ_HANDLED; } -#endif /* CONFIG_ACPI */ - /* * ia64_mca_cpe_poll * @@ -1122,6 +1120,8 @@ ia64_mca_cpe_poll (unsigned long dummy) platform_send_ipi(first_cpu(cpu_online_map), IA64_CPEP_VECTOR, IA64_IPI_DM_INT, 0); } +#endif /* CONFIG_ACPI */ + /* * C portion of the OS INIT handler * -- cgit v1.2.3 From d8caebd285a084ee1e4d484ce597865228614067 Mon Sep 17 00:00:00 2001 From: Peter Chubb Date: Tue, 31 May 2005 22:37:00 -0700 Subject: [IA64] fix compilation warning in sys32_epoll_wait() This gets rid of an unused variable `error' in sys_ia32.c:sys32_epoll_wait() Getting rid of this one makes parsing the output of the kernecomp autobuild easier --- searching for `Error' to find a problem kept hitting this one, even though it's only a warning. Signed-off-by: Tony Luck --- arch/ia64/ia32/sys_ia32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index 247a21c64aea..c1e20d65dd6c 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c @@ -2427,7 +2427,7 @@ sys32_epoll_wait(int epfd, struct epoll_event32 __user * events, int maxevents, { struct epoll_event *events64 = NULL; mm_segment_t old_fs = get_fs(); - int error, numevents, size; + int numevents, size; int evt_idx; int do_free_pages = 0; -- cgit v1.2.3 From 1e86d1c648508fd50e6c9960576b87906a7906ad Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 2 Jun 2005 14:11:37 +1000 Subject: [PATCH] ppc64: Fix result code handling in prom_init prom_init(), the trampoline code that "talks" to Open Firmware during early boot, has various issues with managing OF result codes. Some of my recent fixups in fact made the problem worse on some platforms. This patch reworks it all. Tested on g5, Maple, POWER3 and POWER5. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/prom_init.c | 102 +++++++++++++++++++++++++----------------- 1 file changed, 61 insertions(+), 41 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c index 3de950de3671..1ac531ba7056 100644 --- a/arch/ppc64/kernel/prom_init.c +++ b/arch/ppc64/kernel/prom_init.c @@ -211,13 +211,23 @@ struct { */ #define ADDR(x) (u32) ((unsigned long)(x) - offset) +/* + * Error results ... some OF calls will return "-1" on error, some + * will return 0, some will return either. To simplify, here are + * macros to use with any ihandle or phandle return value to check if + * it is valid + */ + +#define PROM_ERROR (-1u) +#define PHANDLE_VALID(p) ((p) != 0 && (p) != PROM_ERROR) +#define IHANDLE_VALID(i) ((i) != 0 && (i) != PROM_ERROR) + + /* This is the one and *ONLY* place where we actually call open * firmware from, since we need to make sure we're running in 32b * mode when we do. We switch back to 64b mode upon return. */ -#define PROM_ERROR (-1) - static int __init call_prom(const char *service, int nargs, int nret, ...) { int i; @@ -587,14 +597,13 @@ static void __init prom_send_capabilities(void) { unsigned long offset = reloc_offset(); ihandle elfloader; - int ret; elfloader = call_prom("open", 1, 1, ADDR("/packages/elf-loader")); if (elfloader == 0) { prom_printf("couldn't open /packages/elf-loader\n"); return; } - ret = call_prom("call-method", 3, 1, ADDR("process-elf-header"), + call_prom("call-method", 3, 1, ADDR("process-elf-header"), elfloader, ADDR(&fake_elf)); call_prom("close", 1, 0, elfloader); } @@ -646,7 +655,7 @@ static unsigned long __init alloc_up(unsigned long size, unsigned long align) base = _ALIGN_UP(base + 0x100000, align)) { prom_debug(" trying: 0x%x\n\r", base); addr = (unsigned long)prom_claim(base, size, 0); - if ((int)addr != PROM_ERROR) + if (addr != PROM_ERROR) break; addr = 0; if (align == 0) @@ -708,7 +717,7 @@ static unsigned long __init alloc_down(unsigned long size, unsigned long align, for(; base > RELOC(alloc_bottom); base = _ALIGN_DOWN(base - 0x100000, align)) { prom_debug(" trying: 0x%x\n\r", base); addr = (unsigned long)prom_claim(base, size, 0); - if ((int)addr != PROM_ERROR) + if (addr != PROM_ERROR) break; addr = 0; } @@ -902,18 +911,19 @@ static void __init prom_instantiate_rtas(void) { unsigned long offset = reloc_offset(); struct prom_t *_prom = PTRRELOC(&prom); - phandle prom_rtas, rtas_node; + phandle rtas_node; + ihandle rtas_inst; u32 base, entry = 0; u32 size = 0; prom_debug("prom_instantiate_rtas: start...\n"); - prom_rtas = call_prom("finddevice", 1, 1, ADDR("/rtas")); - prom_debug("prom_rtas: %x\n", prom_rtas); - if (prom_rtas == (phandle) -1) + rtas_node = call_prom("finddevice", 1, 1, ADDR("/rtas")); + prom_debug("rtas_node: %x\n", rtas_node); + if (!PHANDLE_VALID(rtas_node)) return; - prom_getprop(prom_rtas, "rtas-size", &size, sizeof(size)); + prom_getprop(rtas_node, "rtas-size", &size, sizeof(size)); if (size == 0) return; @@ -922,14 +932,18 @@ static void __init prom_instantiate_rtas(void) prom_printf("RTAS allocation failed !\n"); return; } - prom_printf("instantiating rtas at 0x%x", base); - rtas_node = call_prom("open", 1, 1, ADDR("/rtas")); - prom_printf("..."); + rtas_inst = call_prom("open", 1, 1, ADDR("/rtas")); + if (!IHANDLE_VALID(rtas_inst)) { + prom_printf("opening rtas package failed"); + return; + } + + prom_printf("instantiating rtas at 0x%x ...", base); if (call_prom("call-method", 3, 2, ADDR("instantiate-rtas"), - rtas_node, base) != PROM_ERROR) { + rtas_inst, base) != PROM_ERROR) { entry = (long)_prom->args.rets[1]; } if (entry == 0) { @@ -940,8 +954,8 @@ static void __init prom_instantiate_rtas(void) reserve_mem(base, size); - prom_setprop(prom_rtas, "linux,rtas-base", &base, sizeof(base)); - prom_setprop(prom_rtas, "linux,rtas-entry", &entry, sizeof(entry)); + prom_setprop(rtas_node, "linux,rtas-base", &base, sizeof(base)); + prom_setprop(rtas_node, "linux,rtas-entry", &entry, sizeof(entry)); prom_debug("rtas base = 0x%x\n", base); prom_debug("rtas entry = 0x%x\n", entry); @@ -1062,7 +1076,7 @@ static void __init prom_initialize_tce_table(void) prom_printf("opening PHB %s", path); phb_node = call_prom("open", 1, 1, path); - if ( (long)phb_node <= 0) + if (phb_node == 0) prom_printf("... failed\n"); else prom_printf("... done\n"); @@ -1279,12 +1293,12 @@ static void __init prom_init_client_services(unsigned long pp) /* get a handle for the stdout device */ _prom->chosen = call_prom("finddevice", 1, 1, ADDR("/chosen")); - if ((long)_prom->chosen <= 0) + if (!PHANDLE_VALID(_prom->chosen)) prom_panic("cannot find chosen"); /* msg won't be printed :( */ /* get device tree root */ _prom->root = call_prom("finddevice", 1, 1, ADDR("/")); - if ((long)_prom->root <= 0) + if (!PHANDLE_VALID(_prom->root)) prom_panic("cannot find device tree root"); /* msg won't be printed :( */ } @@ -1356,9 +1370,8 @@ static int __init prom_find_machine_type(void) } /* Default to pSeries. We need to know if we are running LPAR */ rtas = call_prom("finddevice", 1, 1, ADDR("/rtas")); - if (rtas != (phandle) -1) { - unsigned long x; - x = prom_getproplen(rtas, "ibm,hypertas-functions"); + if (!PHANDLE_VALID(rtas)) { + int x = prom_getproplen(rtas, "ibm,hypertas-functions"); if (x != PROM_ERROR) { prom_printf("Hypertas detected, assuming LPAR !\n"); return PLATFORM_PSERIES_LPAR; @@ -1426,12 +1439,13 @@ static void __init prom_check_displays(void) * leave some room at the end of the path for appending extra * arguments */ - if (call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-10) < 0) + if (call_prom("package-to-path", 3, 1, node, path, + PROM_SCRATCH_SIZE-10) == PROM_ERROR) continue; prom_printf("found display : %s, opening ... ", path); ih = call_prom("open", 1, 1, path); - if (ih == (ihandle)0 || ih == (ihandle)-1) { + if (ih == 0) { prom_printf("failed\n"); continue; } @@ -1514,6 +1528,12 @@ static unsigned long __init dt_find_string(char *str) return 0; } +/* + * The Open Firmware 1275 specification states properties must be 31 bytes or + * less, however not all firmwares obey this. Make it 64 bytes to be safe. + */ +#define MAX_PROPERTY_NAME 64 + static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start, unsigned long *mem_end) { @@ -1527,10 +1547,12 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start, /* get and store all property names */ prev_name = RELOC(""); for (;;) { - - /* 32 is max len of name including nul. */ - namep = make_room(mem_start, mem_end, 32, 1); - if (call_prom("nextprop", 3, 1, node, prev_name, namep) <= 0) { + int rc; + + /* 64 is max len of name including nul. */ + namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1); + rc = call_prom("nextprop", 3, 1, node, prev_name, namep); + if (rc != 1) { /* No more nodes: unwind alloc */ *mem_start = (unsigned long)namep; break; @@ -1555,12 +1577,6 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start, } } -/* - * The Open Firmware 1275 specification states properties must be 31 bytes or - * less, however not all firmwares obey this. Make it 64 bytes to be safe. - */ -#define MAX_PROPERTY_NAME 64 - static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start, unsigned long *mem_end) { @@ -1607,7 +1623,10 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start, prev_name = RELOC(""); sstart = (char *)RELOC(dt_string_start); for (;;) { - if (call_prom("nextprop", 3, 1, node, prev_name, pname) <= 0) + int rc; + + rc = call_prom("nextprop", 3, 1, node, prev_name, pname); + if (rc != 1) break; /* find string offset */ @@ -1623,7 +1642,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start, l = call_prom("getproplen", 2, 1, node, pname); /* sanity checks */ - if (l < 0) + if (l == PROM_ERROR) continue; if (l > MAX_PROPERTY_LENGTH) { prom_printf("WARNING: ignoring large property "); @@ -1771,17 +1790,18 @@ static void __init fixup_device_tree(void) /* Some G5s have a missing interrupt definition, fix it up here */ u3 = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000")); - if ((long)u3 <= 0) + if (!PHANDLE_VALID(u3)) return; i2c = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/i2c@f8001000")); - if ((long)i2c <= 0) + if (!PHANDLE_VALID(i2c)) return; mpic = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/mpic@f8040000")); - if ((long)mpic <= 0) + if (!PHANDLE_VALID(mpic)) return; /* check if proper rev of u3 */ - if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev)) <= 0) + if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev)) + == PROM_ERROR) return; if (u3_rev != 0x35) return; -- cgit v1.2.3 From 6dc2f0c7df6cefda5932ac8bcd9ca5ef45de36ee Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 2 Jun 2005 14:02:02 -0700 Subject: [PATCH] ppc64: cleanup iseries runlight support The iseries has a bar graph on the front panel that shows how busy it is. The operating system sets and clears a bit in the CTRL register to control it. Instead of going to the complexity of using a thread info bit, just set and clear it in the idle loop. Also create two helper functions, ppc64_runlatch_on and ppc64_runlatch_off. Finally don't use the short form of the SPR defines. Signed-off-by: Anton Blanchard Acked-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/entry.S | 9 --------- arch/ppc64/kernel/head.S | 10 +++++----- arch/ppc64/kernel/idle.c | 8 +++----- arch/ppc64/kernel/process.c | 3 --- arch/ppc64/kernel/sysfs.c | 8 ++------ include/asm-ppc64/processor.h | 27 +++++++++++++++++++++------ include/asm-ppc64/thread_info.h | 4 ++-- 7 files changed, 33 insertions(+), 36 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/entry.S b/arch/ppc64/kernel/entry.S index d3604056e1a9..b61572eb2a71 100644 --- a/arch/ppc64/kernel/entry.S +++ b/arch/ppc64/kernel/entry.S @@ -436,15 +436,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC) REST_8GPRS(14, r1) REST_10GPRS(22, r1) -#ifdef CONFIG_PPC_ISERIES - clrrdi r7,r1,THREAD_SHIFT /* get current_thread_info() */ - ld r7,TI_FLAGS(r7) /* Get run light flag */ - mfspr r9,CTRLF - srdi r7,r7,TIF_RUN_LIGHT - insrdi r9,r7,1,63 /* Insert run light into CTRL */ - mtspr CTRLT,r9 -#endif - /* convert old thread to its task_struct for return value */ addi r3,r3,-THREAD ld r7,_NIP(r1) /* Return to _switch caller in new task */ diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index 92a744c31ab1..346dbf606b5d 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -626,10 +626,10 @@ system_reset_iSeries: lhz r24,PACAPACAINDEX(r13) /* Get processor # */ cmpwi 0,r24,0 /* Are we processor 0? */ beq .__start_initialization_iSeries /* Start up the first processor */ - mfspr r4,CTRLF - li r5,RUNLATCH /* Turn off the run light */ + mfspr r4,SPRN_CTRLF + li r5,CTRL_RUNLATCH /* Turn off the run light */ andc r4,r4,r5 - mtspr CTRLT,r4 + mtspr SPRN_CTRLT,r4 1: HMT_LOW @@ -2082,9 +2082,9 @@ _GLOBAL(hmt_start_secondary) mfspr r4, HID0 ori r4, r4, 0x1 mtspr HID0, r4 - mfspr r4, CTRLF + mfspr r4, SPRN_CTRLF oris r4, r4, 0x40 - mtspr CTRLT, r4 + mtspr SPRN_CTRLT, r4 blr #endif diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c index 6abc621d3ba0..f24ce2b87200 100644 --- a/arch/ppc64/kernel/idle.c +++ b/arch/ppc64/kernel/idle.c @@ -75,13 +75,9 @@ static int iSeries_idle(void) { struct paca_struct *lpaca; long oldval; - unsigned long CTRL; /* ensure iSeries run light will be out when idle */ - clear_thread_flag(TIF_RUN_LIGHT); - CTRL = mfspr(CTRLF); - CTRL &= ~RUNLATCH; - mtspr(CTRLT, CTRL); + ppc64_runlatch_off(); lpaca = get_paca(); @@ -111,7 +107,9 @@ static int iSeries_idle(void) } } + ppc64_runlatch_on(); schedule(); + ppc64_runlatch_off(); } return 0; diff --git a/arch/ppc64/kernel/process.c b/arch/ppc64/kernel/process.c index 8b0686122738..cdfecbeb331f 100644 --- a/arch/ppc64/kernel/process.c +++ b/arch/ppc64/kernel/process.c @@ -378,9 +378,6 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp, childregs->gpr[1] = sp + sizeof(struct pt_regs); p->thread.regs = NULL; /* no user register state */ clear_ti_thread_flag(p->thread_info, TIF_32BIT); -#ifdef CONFIG_PPC_ISERIES - set_ti_thread_flag(p->thread_info, TIF_RUN_LIGHT); -#endif } else { childregs->gpr[1] = usp; p->thread.regs = childregs; diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c index 0925694c3ce5..c8fa6569b2fd 100644 --- a/arch/ppc64/kernel/sysfs.c +++ b/arch/ppc64/kernel/sysfs.c @@ -113,7 +113,6 @@ void ppc64_enable_pmcs(void) #ifdef CONFIG_PPC_PSERIES unsigned long set, reset; int ret; - unsigned int ctrl; #endif /* CONFIG_PPC_PSERIES */ /* Only need to enable them once */ @@ -167,11 +166,8 @@ void ppc64_enable_pmcs(void) * On SMT machines we have to set the run latch in the ctrl register * in order to make PMC6 spin. */ - if (cpu_has_feature(CPU_FTR_SMT)) { - ctrl = mfspr(CTRLF); - ctrl |= RUNLATCH; - mtspr(CTRLT, ctrl); - } + if (cpu_has_feature(CPU_FTR_SMT)) + ppc64_runlatch_on(); #endif /* CONFIG_PPC_PSERIES */ } diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h index 5ba6aa45e1e2..809c634ba1df 100644 --- a/include/asm-ppc64/processor.h +++ b/include/asm-ppc64/processor.h @@ -164,6 +164,9 @@ #define SPRN_USIA 0x3AB /* User Sampled Instruction Address Register */ #define SPRN_XER 0x001 /* Fixed Point Exception Register */ #define SPRN_VRSAVE 0x100 /* Vector save */ +#define SPRN_CTRLF 0x088 +#define SPRN_CTRLT 0x098 +#define CTRL_RUNLATCH 0x1 /* Performance monitor SPRs */ #define SPRN_SIAR 780 @@ -279,12 +282,6 @@ #define XGLUE(a,b) a##b #define GLUE(a,b) XGLUE(a,b) -/* iSeries CTRL register (for runlatch) */ - -#define CTRLT 0x098 -#define CTRLF 0x088 -#define RUNLATCH 0x0001 - #ifdef __ASSEMBLY__ #define _GLOBAL(name) \ @@ -499,6 +496,24 @@ static inline void prefetchw(const void *x) #define HAVE_ARCH_PICK_MMAP_LAYOUT +static inline void ppc64_runlatch_on(void) +{ + unsigned long ctrl; + + ctrl = mfspr(SPRN_CTRLF); + ctrl |= CTRL_RUNLATCH; + mtspr(SPRN_CTRLT, ctrl); +} + +static inline void ppc64_runlatch_off(void) +{ + unsigned long ctrl; + + ctrl = mfspr(SPRN_CTRLF); + ctrl &= ~CTRL_RUNLATCH; + mtspr(SPRN_CTRLT, ctrl); +} + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ diff --git a/include/asm-ppc64/thread_info.h b/include/asm-ppc64/thread_info.h index 037b5e06083c..48b7900e90ec 100644 --- a/include/asm-ppc64/thread_info.h +++ b/include/asm-ppc64/thread_info.h @@ -96,7 +96,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_POLLING_NRFLAG 4 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_32BIT 5 /* 32 bit binary */ -#define TIF_RUN_LIGHT 6 /* iSeries run light */ +/* #define SPARE 6 */ #define TIF_ABI_PENDING 7 /* 32/64 bit switch needed */ #define TIF_SYSCALL_AUDIT 8 /* syscall auditing active */ #define TIF_SINGLESTEP 9 /* singlestepping active */ @@ -110,7 +110,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_NEED_RESCHED (1< Date: Thu, 2 Jun 2005 14:02:03 -0700 Subject: [PATCH] ppc64: remove decr_overclock Now that we have HZ=1000 there is much less of a need for decr_overclock. Remove it. Leave spread_lpevents but move it into iSeries_setup.c. We should look at making event spreading the default some day. Signed-off-by: Anton Blanchard Acked-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/iSeries_setup.c | 22 +++++++++++++++ arch/ppc64/kernel/setup.c | 56 +-------------------------------------- arch/ppc64/kernel/smp.c | 3 +-- 3 files changed, 24 insertions(+), 57 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c index da20120f2261..6d06eb550a3f 100644 --- a/arch/ppc64/kernel/iSeries_setup.c +++ b/arch/ppc64/kernel/iSeries_setup.c @@ -852,6 +852,28 @@ static int __init iSeries_src_init(void) late_initcall(iSeries_src_init); +static int set_spread_lpevents(char *str) +{ + unsigned long i; + unsigned long val = simple_strtoul(str, NULL, 0); + + /* + * The parameter is the number of processors to share in processing + * lp events. + */ + if (( val > 0) && (val <= NR_CPUS)) { + for (i = 1; i < val; ++i) + paca[i].lpqueue_ptr = paca[0].lpqueue_ptr; + + printk("lpevent processing spread over %ld processors\n", val); + } else { + printk("invalid spread_lpevents %ld\n", val); + } + + return 1; +} +__setup("spread_lpevents=", set_spread_lpevents); + void __init iSeries_early_setup(void) { iSeries_fixup_klimit(); diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c index 21c57f539c29..dce198d39328 100644 --- a/arch/ppc64/kernel/setup.c +++ b/arch/ppc64/kernel/setup.c @@ -103,11 +103,6 @@ extern void unflatten_device_tree(void); extern void smp_release_cpus(void); -unsigned long decr_overclock = 1; -unsigned long decr_overclock_proc0 = 1; -unsigned long decr_overclock_set = 0; -unsigned long decr_overclock_proc0_set = 0; - int have_of = 1; int boot_cpuid = 0; int boot_cpuid_phys = 0; @@ -1120,64 +1115,15 @@ void ppc64_dump_msg(unsigned int src, const char *msg) printk("[dump]%04x %s\n", src, msg); } -int set_spread_lpevents( char * str ) -{ - /* The parameter is the number of processors to share in processing lp events */ - unsigned long i; - unsigned long val = simple_strtoul( str, NULL, 0 ); - if ( ( val > 0 ) && ( val <= NR_CPUS ) ) { - for ( i=1; idefault_decr = tb_ticks_per_jiffy / decr_overclock_proc0; + lpaca->default_decr = tb_ticks_per_jiffy; lpaca->next_jiffy_update_tb = get_tb() + tb_ticks_per_jiffy; } -int set_decr_overclock_proc0( char * str ) -{ - unsigned long val = simple_strtoul( str, NULL, 0 ); - if ( ( val >= 1 ) && ( val <= 48 ) ) { - decr_overclock_proc0_set = 1; - decr_overclock_proc0 = val; - printk("proc 0 decrementer overclock factor of %ld\n", val); - } - else - printk("invalid proc 0 decrementer overclock factor of %ld\n", val); - return 1; -} - -int set_decr_overclock( char * str ) -{ - unsigned long val = simple_strtoul( str, NULL, 0 ); - if ( ( val >= 1 ) && ( val <= 48 ) ) { - decr_overclock_set = 1; - decr_overclock = val; - printk("decrementer overclock factor of %ld\n", val); - } - else - printk("invalid decrementer overclock factor of %ld\n", val); - return 1; - -} - -__setup("spread_lpevents=", set_spread_lpevents ); -__setup("decr_overclock_proc0=", set_decr_overclock_proc0 ); -__setup("decr_overclock=", set_decr_overclock ); - #ifndef CONFIG_PPC_ISERIES /* * This function can be used by platforms to "find" legacy serial ports. diff --git a/arch/ppc64/kernel/smp.c b/arch/ppc64/kernel/smp.c index 3b906cd94037..9ef5d36d6b25 100644 --- a/arch/ppc64/kernel/smp.c +++ b/arch/ppc64/kernel/smp.c @@ -334,7 +334,6 @@ void smp_call_function_interrupt(void) } } -extern unsigned long decr_overclock; extern struct gettimeofday_struct do_gtod; struct thread_info *current_set[NR_CPUS]; @@ -491,7 +490,7 @@ int __devinit __cpu_up(unsigned int cpu) if (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)) return -EINVAL; - paca[cpu].default_decr = tb_ticks_per_jiffy / decr_overclock; + paca[cpu].default_decr = tb_ticks_per_jiffy; if (!cpu_has_feature(CPU_FTR_SLB)) { void *tmp; -- cgit v1.2.3 From b05a720b374ac6af05b2fd4c70bb2c61a9f461ca Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Fri, 3 Jun 2005 11:35:20 +1000 Subject: [PATCH] m68knommu: fix scheduling and race problems in idle loop Re-work the m68knommu specific idle code according to suggestions from Nick Piggin . A couple of rules that we need to follow: 1. Preempt should now disabled over idle routines. Should only be enabled to call schedule() then disabled again. 3. When cpu_idle finds (need_resched() == 'true'), it should call schedule(). It should not call schedule() otherwise. Also fix interrupt locking around the need_resched() and cpu stop state so that there is no race condition. Signed-off-by: Greg Ungerer Signed-off-by: Linus Torvalds --- arch/m68knommu/kernel/process.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c index 2b6c9d32b7a6..c4a33f265dc0 100644 --- a/arch/m68knommu/kernel/process.c +++ b/arch/m68knommu/kernel/process.c @@ -45,11 +45,13 @@ asmlinkage void ret_from_fork(void); */ void default_idle(void) { - while(1) { - if (need_resched()) - __asm__("stop #0x2000" : : : "cc"); - schedule(); + local_irq_disable(); + while (!need_resched()) { + /* This stop will re-enable interrupts */ + __asm__("stop #0x2000" : : : "cc"); + local_irq_disable(); } + local_irq_enable(); } void (*idle)(void) = default_idle; @@ -63,7 +65,12 @@ void (*idle)(void) = default_idle; void cpu_idle(void) { /* endless idle loop with no priority at all */ - idle(); + while (1) { + idle(); + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } } void machine_restart(char * __unused) -- cgit v1.2.3 From ff89bf3bc0534aa03b5375aa906544d96911bad4 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Fri, 3 Jun 2005 05:25:00 -0700 Subject: [IA64] fix setting of sn_hub_info->shub_1_1_found Fix a bug in which shub_1_1_found is not being properly initialized or set, resulting in the improper setting of sn_hub_info->shub_1_1_found. Signed-off-by: Dean Nelson Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index e64cb8175f7a..44bfc7f318cb 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -222,7 +222,7 @@ void __init early_sn_setup(void) extern int platform_intr_list[]; extern nasid_t master_nasid; -static int shub_1_1_found __initdata; +static int __initdata shub_1_1_found = 0; /* * sn_check_for_wars @@ -251,7 +251,7 @@ static void __init sn_check_for_wars(void) } else { for_each_online_node(cnode) { if (is_shub_1_1(cnodeid_to_nasid(cnode))) - sn_hub_info->shub_1_1_found = 1; + shub_1_1_found = 1; } } } -- cgit v1.2.3 From 105bb2698b54a838165947199f1c8be5c2e7d9bb Mon Sep 17 00:00:00 2001 From: Albrecht Dreß Date: Fri, 3 Jun 2005 20:52:26 +0100 Subject: [PATCH] ARM: 2694/1: [s3c2410/dma] release irq properly to fix kernel oops MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Patch from Albrecht Dreß Problem: When a module requests a DMA channel via the function s3c2410_dma_request(), this function requests the appropriate irq under the name of the client module. When the client module is unloaded, it calls s3c2410_dma_free() which does not free the irq. Consequently, when e.g. running "cat /proc/interrupts", the irq owner points to freed memory, leading to a kernel oops. File: linux/arch/arm/mach-s3c2410/dma.c Fix: trivial, below Signed-off-by: Albrecht Dreß Signed-off-by: Russell King --- arch/arm/mach-s3c2410/dma.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c index bc229fab86d4..c7c28890d406 100644 --- a/arch/arm/mach-s3c2410/dma.c +++ b/arch/arm/mach-s3c2410/dma.c @@ -785,6 +785,10 @@ int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client) chan->client = NULL; chan->in_use = 0; + if (chan->irq_claimed) + free_irq(chan->irq, (void *)chan); + chan->irq_claimed = 0; + local_irq_restore(flags); return 0; -- cgit v1.2.3 From 8775420d2fbcfff866995471ea5f6130d14d121c Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Fri, 3 Jun 2005 20:52:27 +0100 Subject: [PATCH] ARM: 2691/1: PXA27x sleep fixes take 2 Patch from Todd Poynor PXA27x sleep fixes: * set additional sleep/wakeup registers for Mainstone boards. * move CKEN=0 to pxa25x-specific code; that value is harmful on pxa27x. * save/restore additional registers, including some found necessary for C5 processors and/or newer blob versions. * enable future support of additional sleep modes for PXA27x (eg, standby, deep sleep). * split off cpu-specific sleep processing between pxa27x and pxa25x into separate files (partly in preparation for additional sleep modes). Includes fixes from David Burrage. Signed-off-by: Todd Poynor Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mach-pxa/mainstone.c | 9 +++++++++ arch/arm/mach-pxa/pm.c | 32 ++++++++++++++++++-------------- arch/arm/mach-pxa/pxa25x.c | 29 +++++++++++++++++++++++++++++ arch/arm/mach-pxa/pxa27x.c | 32 ++++++++++++++++++++++++++++++++ 4 files changed, 88 insertions(+), 14 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 3f952237ae3d..6823ae28ae6a 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -304,6 +304,15 @@ static void __init mainstone_map_io(void) PWER = 0xC0000002; PRER = 0x00000002; PFER = 0x00000002; + /* for use I SRAM as framebuffer. */ + PSLR |= 0xF04; + PCFR = 0x66; + /* For Keypad wakeup. */ + KPC &=~KPC_ASACT; + KPC |=KPC_AS; + PKWR = 0x000FD000; + /* Need read PKWR back after set it. */ + PKWR; } MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)") diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c index 82a4bf34c251..9799fe80df23 100644 --- a/arch/arm/mach-pxa/pm.c +++ b/arch/arm/mach-pxa/pm.c @@ -29,9 +29,6 @@ */ #undef DEBUG -extern void pxa_cpu_suspend(void); -extern void pxa_cpu_resume(void); - #define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x #define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x] @@ -63,6 +60,12 @@ enum { SLEEP_SAVE_START = 0, SLEEP_SAVE_ICMR, SLEEP_SAVE_CKEN, +#ifdef CONFIG_PXA27x + SLEEP_SAVE_MDREFR, + SLEEP_SAVE_PWER, SLEEP_SAVE_PCFR, SLEEP_SAVE_PRER, + SLEEP_SAVE_PFER, SLEEP_SAVE_PKWR, +#endif + SLEEP_SAVE_CKSUM, SLEEP_SAVE_SIZE @@ -75,9 +78,7 @@ static int pxa_pm_enter(suspend_state_t state) unsigned long checksum = 0; struct timespec delta, rtc; int i; - - if (state != PM_SUSPEND_MEM) - return -EINVAL; + extern void pxa_cpu_pm_enter(suspend_state_t state); #ifdef CONFIG_IWMMXT /* force any iWMMXt context to ram **/ @@ -100,16 +101,17 @@ static int pxa_pm_enter(suspend_state_t state) SAVE(GAFR2_L); SAVE(GAFR2_U); #ifdef CONFIG_PXA27x + SAVE(MDREFR); SAVE(GPLR3); SAVE(GPDR3); SAVE(GRER3); SAVE(GFER3); SAVE(PGSR3); SAVE(GAFR3_L); SAVE(GAFR3_U); + SAVE(PWER); SAVE(PCFR); SAVE(PRER); + SAVE(PFER); SAVE(PKWR); #endif SAVE(ICMR); ICMR = 0; SAVE(CKEN); - CKEN = 0; - SAVE(PSTR); /* Note: wake up source are set up in each machine specific files */ @@ -123,16 +125,13 @@ static int pxa_pm_enter(suspend_state_t state) /* Clear sleep reset status */ RCSR = RCSR_SMR; - /* set resume return address */ - PSPR = virt_to_phys(pxa_cpu_resume); - /* before sleeping, calculate and save a checksum */ for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++) checksum += sleep_save[i]; sleep_save[SLEEP_SAVE_CKSUM] = checksum; /* *** go zzz *** */ - pxa_cpu_suspend(); + pxa_cpu_pm_enter(state); /* after sleeping, validate the checksum */ checksum = 0; @@ -145,7 +144,7 @@ static int pxa_pm_enter(suspend_state_t state) LUB_HEXLED = 0xbadbadc5; #endif while (1) - pxa_cpu_suspend(); + pxa_cpu_pm_enter(state); } /* ensure not to come back here if it wasn't intended */ @@ -162,8 +161,11 @@ static int pxa_pm_enter(suspend_state_t state) RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2); #ifdef CONFIG_PXA27x + RESTORE(MDREFR); RESTORE(GAFR3_L); RESTORE(GAFR3_U); RESTORE_GPLEVEL(3); RESTORE(GPDR3); RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3); + RESTORE(PWER); RESTORE(PCFR); RESTORE(PRER); + RESTORE(PFER); RESTORE(PKWR); #endif PSSR = PSSR_RDH | PSSR_PH; @@ -197,7 +199,9 @@ unsigned long sleep_phys_sp(void *sp) */ static int pxa_pm_prepare(suspend_state_t state) { - return 0; + extern int pxa_cpu_pm_prepare(suspend_state_t state); + + return pxa_cpu_pm_prepare(state); } /* diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index e887b7175ef3..b6d945a6e774 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -102,3 +102,32 @@ unsigned int get_lcdclk_frequency_10khz(void) } EXPORT_SYMBOL(get_lcdclk_frequency_10khz); + + +int pxa_cpu_pm_prepare(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_MEM: + break; + default: + return -EINVAL; + } + + return 0; +} + +void pxa_cpu_pm_enter(suspend_state_t state) +{ + extern void pxa_cpu_suspend(unsigned int); + extern void pxa_cpu_resume(void); + + CKEN = 0; + + switch (state) { + case PM_SUSPEND_MEM: + /* set resume return address */ + PSPR = virt_to_phys(pxa_cpu_resume); + pxa_cpu_suspend(3); + break; + } +} diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 7e863afefb53..aa3c3b2ab75e 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -120,6 +120,38 @@ EXPORT_SYMBOL(get_clk_frequency_khz); EXPORT_SYMBOL(get_memclk_frequency_10khz); EXPORT_SYMBOL(get_lcdclk_frequency_10khz); +int pxa_cpu_pm_prepare(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_MEM: + return 0; + default: + return -EINVAL; + } +} + +void pxa_cpu_pm_enter(suspend_state_t state) +{ + extern void pxa_cpu_standby(void); + extern void pxa_cpu_suspend(unsigned int); + extern void pxa_cpu_resume(void); + + CKEN = CKEN22_MEMC | CKEN9_OSTIMER; + + /* ensure voltage-change sequencer not initiated, which hangs */ + PCFR &= ~PCFR_FVC; + + /* Clear edge-detect status register. */ + PEDR = 0xDF12FE1B; + + switch (state) { + case PM_SUSPEND_MEM: + /* set resume return address */ + PSPR = virt_to_phys(pxa_cpu_resume); + pxa_cpu_suspend(3); + break; + } +} /* * device registration specific to PXA27x. -- cgit v1.2.3 From 8be3de3fd8469154a2b3e18a4712032dac5b4a53 Mon Sep 17 00:00:00 2001 From: Nathan Lynch Date: Fri, 3 Jun 2005 14:25:25 -0500 Subject: [PATCH] prom_find_machine_type typo breaks pSeries lpar boot A typo in prom_find_machine_type from Ben's recent patch "ppc64: Fix result code handling in prom_init" prevents pSeries LPAR systems from booting. Tested on a pSeries 570 and OpenPower 720 (both Power5 LPAR). Signed-off-by: Nathan Lynch Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/prom_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c index 1ac531ba7056..b7683abfbe6a 100644 --- a/arch/ppc64/kernel/prom_init.c +++ b/arch/ppc64/kernel/prom_init.c @@ -1370,7 +1370,7 @@ static int __init prom_find_machine_type(void) } /* Default to pSeries. We need to know if we are running LPAR */ rtas = call_prom("finddevice", 1, 1, ADDR("/rtas")); - if (!PHANDLE_VALID(rtas)) { + if (PHANDLE_VALID(rtas)) { int x = prom_getproplen(rtas, "ibm,hypertas-functions"); if (x != PROM_ERROR) { prom_printf("Hypertas detected, assuming LPAR !\n"); -- cgit v1.2.3 From 17d82fcc6a15887b7138d35802ab8fc5f249794f Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Fri, 3 Jun 2005 22:18:52 +0100 Subject: [PATCH] ARM: 2700/1: Disable IXP2000 IRQs at bootup Patch from Deepak Saxena The IXDP2800 bootloader does not disable IRQs before jumping into the kernel and this is causing the Grand Unified KGDB to crash the system when we do an early call to trap_init() and irq handlers have not yet been registered. This patch disables IRQs before we jump into the kernel. Signed-off-by: Deepak Saxena Signed-off-by: Russell King --- arch/arm/boot/compressed/head-xscale.S | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch') diff --git a/arch/arm/boot/compressed/head-xscale.S b/arch/arm/boot/compressed/head-xscale.S index 665bd2c20743..d3fe2533907e 100644 --- a/arch/arm/boot/compressed/head-xscale.S +++ b/arch/arm/boot/compressed/head-xscale.S @@ -47,3 +47,10 @@ __XScale_start: orr r7, r7, #(MACH_TYPE_GTWX5715 & 0xff00) #endif +#ifdef CONFIG_ARCH_IXP2000 + mov r1, #-1 + mov r0, #0xd6000000 + str r1, [r0, #0x14] + str r1, [r0, #0x18] +#endif + -- cgit v1.2.3 From 778959db97c7ed8eed4025916916b17a4629ce3d Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Sat, 4 Jun 2005 15:43:30 -0700 Subject: [PATCH] s390: ptrace peek and poke The special cases of peek and poke on acrs[15] and the fpc register are not handled correctly. A poke on acrs[15] will clobber the 4 bytes after the access registers in the thread_info structure. That happens to be the kernel stack pointer. A poke on the fpc with an invalid value is not caught by the validity check. On the next context switch the broken fpc value will cause a program check in the kernel. Improving the checks in peek and poke fixes this. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/kernel/ptrace.c | 48 ++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 43 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 26889366929a..329d9391c83d 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -40,6 +40,7 @@ #include #include #include +#include #ifdef CONFIG_S390_SUPPORT #include "compat_ptrace.h" @@ -130,13 +131,19 @@ static int peek_user(struct task_struct *child, addr_t addr, addr_t data) { struct user *dummy = NULL; - addr_t offset, tmp; + addr_t offset, tmp, mask; /* * Stupid gdb peeks/pokes the access registers in 64 bit with * an alignment of 4. Programmers from hell... */ - if ((addr & 3) || addr > sizeof(struct user) - __ADDR_MASK) + mask = __ADDR_MASK; +#ifdef CONFIG_ARCH_S390X + if (addr >= (addr_t) &dummy->regs.acrs && + addr < (addr_t) &dummy->regs.orig_gpr2) + mask = 3; +#endif + if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK) return -EIO; if (addr < (addr_t) &dummy->regs.acrs) { @@ -153,6 +160,16 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data) * access registers are stored in the thread structure */ offset = addr - (addr_t) &dummy->regs.acrs; +#ifdef CONFIG_ARCH_S390X + /* + * Very special case: old & broken 64 bit gdb reading + * from acrs[15]. Result is a 64 bit value. Read the + * 32 bit acrs[15] value and shift it by 32. Sick... + */ + if (addr == (addr_t) &dummy->regs.acrs[15]) + tmp = ((unsigned long) child->thread.acrs[15]) << 32; + else +#endif tmp = *(addr_t *)((addr_t) &child->thread.acrs + offset); } else if (addr == (addr_t) &dummy->regs.orig_gpr2) { @@ -167,6 +184,9 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data) */ offset = addr - (addr_t) &dummy->regs.fp_regs; tmp = *(addr_t *)((addr_t) &child->thread.fp_regs + offset); + if (addr == (addr_t) &dummy->regs.fp_regs.fpc) + tmp &= (unsigned long) FPC_VALID_MASK + << (BITS_PER_LONG - 32); } else if (addr < (addr_t) (&dummy->regs.per_info + 1)) { /* @@ -191,13 +211,19 @@ static int poke_user(struct task_struct *child, addr_t addr, addr_t data) { struct user *dummy = NULL; - addr_t offset; + addr_t offset, mask; /* * Stupid gdb peeks/pokes the access registers in 64 bit with * an alignment of 4. Programmers from hell indeed... */ - if ((addr & 3) || addr > sizeof(struct user) - __ADDR_MASK) + mask = __ADDR_MASK; +#ifdef CONFIG_ARCH_S390X + if (addr >= (addr_t) &dummy->regs.acrs && + addr < (addr_t) &dummy->regs.orig_gpr2) + mask = 3; +#endif + if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK) return -EIO; if (addr < (addr_t) &dummy->regs.acrs) { @@ -224,6 +250,17 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data) * access registers are stored in the thread structure */ offset = addr - (addr_t) &dummy->regs.acrs; +#ifdef CONFIG_ARCH_S390X + /* + * Very special case: old & broken 64 bit gdb writing + * to acrs[15] with a 64 bit value. Ignore the lower + * half of the value and write the upper 32 bit to + * acrs[15]. Sick... + */ + if (addr == (addr_t) &dummy->regs.acrs[15]) + child->thread.acrs[15] = (unsigned int) (data >> 32); + else +#endif *(addr_t *)((addr_t) &child->thread.acrs + offset) = data; } else if (addr == (addr_t) &dummy->regs.orig_gpr2) { @@ -237,7 +274,8 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data) * floating point regs. are stored in the thread structure */ if (addr == (addr_t) &dummy->regs.fp_regs.fpc && - (data & ~FPC_VALID_MASK) != 0) + (data & ~((unsigned long) FPC_VALID_MASK + << (BITS_PER_LONG - 32))) != 0) return -EINVAL; offset = addr - (addr_t) &dummy->regs.fp_regs; *(addr_t *)((addr_t) &child->thread.fp_regs + offset) = data; -- cgit v1.2.3 From c5c3a6d8fe923b8780b9cd10e72344b8cf8518b5 Mon Sep 17 00:00:00 2001 From: Bodo Stroesser Date: Sat, 4 Jun 2005 15:43:32 -0700 Subject: [PATCH] s390: uml ptrace fixes To make UML build and run on s390, I needed to do these two little changes: 1) UML includes some of the subarch's (s390) headers. I had to change one of them with the following one-liner, to make this compile. AFAICS, this change doesn't break compilation of s390 itself. 2) UML needs to intercept syscalls via ptrace to invalidate the syscall, read syscall's parameters and write the result with the result of UML's syscall processing. Also, UML needs to make sure, that the host does no syscall restart processing. On i386 for example, this can be done by writing -1 to orig_eax on the 2nd syscall interception (orig_eax is the syscall number, which after the interception is used as a "interrupt was a syscall" flag only. Unfortunately, s390 holds syscall number and syscall result in gpr2 and its "interrupt was a syscall" flag (trap) is unreachable via ptrace. So I changed the host to set trap to -1, if the syscall number is changed to an invalid value on the first syscall interception. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/kernel/ptrace.c | 7 +++++++ include/asm-s390/user.h | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 329d9391c83d..06afa3103ace 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -760,6 +760,13 @@ syscall_trace(struct pt_regs *regs, int entryexit) ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0)); + /* + * If the debuffer has set an invalid system call number, + * we prepare to skip the system call restart handling. + */ + if (!entryexit && regs->gprs[2] >= NR_syscalls) + regs->trap = -1; + /* * this isn't the same as continuing with a signal, but it will do * for normal use. strace only continues with a signal if the diff --git a/include/asm-s390/user.h b/include/asm-s390/user.h index c64f8c181df3..1dc74baf03c4 100644 --- a/include/asm-s390/user.h +++ b/include/asm-s390/user.h @@ -10,7 +10,7 @@ #define _S390_USER_H #include -#include +#include /* Core file format: The core file is written in such a way that gdb can understand it and provide useful information to the user (under linux we use the 'trad-core' bfd). There are quite a number of -- cgit v1.2.3 From 595bf2aacae96d0f87352a1ff5476b79e52e212f Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Sat, 4 Jun 2005 15:43:32 -0700 Subject: [PATCH] s390: in_interrupt vs. in_atomic The condition for no context in do_exception checks for hard and soft interrupts by using in_interrupt() but not for preemption. This is bad for the users of __copy_from/to_user_inatomic because the fault handler might call schedule although the preemption count is != 0. Use in_atomic() instead in_interrupt(). Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 80306bc8c799..75fde949d125 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -207,7 +207,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int is_protection) * we are not in an interrupt and that there is a * user context. */ - if (user_address == 0 || in_interrupt() || !mm) + if (user_address == 0 || in_atomic() || !mm) goto no_context; /* -- cgit v1.2.3 From f26d583e41aedad8159acf9533fa287d7209dfbf Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Sat, 4 Jun 2005 15:43:33 -0700 Subject: [PATCH] s390: deadlock in appldata The system might hang when using appldata_mem with high I/O traffic and a large number of devices. The spinlocks bdev_lock and swaplock are acquired via calls to si_meminfo() and si_swapinfo() from a tasklet, i.e. interrupt context, which can lead to a deadlock. Replace tasklet with work queue. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/appldata/appldata_base.c | 72 ++++++++++++++++++++--------------- arch/s390/appldata/appldata_mem.c | 2 +- arch/s390/appldata/appldata_net_sum.c | 2 +- arch/s390/appldata/appldata_os.c | 4 +- 4 files changed, 45 insertions(+), 35 deletions(-) (limited to 'arch') diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c index 01ae1964c938..c067435bae45 100644 --- a/arch/s390/appldata/appldata_base.c +++ b/arch/s390/appldata/appldata_base.c @@ -28,6 +28,7 @@ //#include #include #include +#include #include "appldata.h" @@ -133,9 +134,12 @@ static int appldata_interval = APPLDATA_CPU_INTERVAL; static int appldata_timer_active; /* - * Tasklet + * Work queue */ -static struct tasklet_struct appldata_tasklet_struct; +static struct workqueue_struct *appldata_wq; +static void appldata_work_fn(void *data); +static DECLARE_WORK(appldata_work, appldata_work_fn, NULL); + /* * Ops list @@ -144,11 +148,11 @@ static DEFINE_SPINLOCK(appldata_ops_lock); static LIST_HEAD(appldata_ops_list); -/************************* timer, tasklet, DIAG ******************************/ +/*************************** timer, work, DIAG *******************************/ /* * appldata_timer_function() * - * schedule tasklet and reschedule timer + * schedule work and reschedule timer */ static void appldata_timer_function(unsigned long data, struct pt_regs *regs) { @@ -157,22 +161,22 @@ static void appldata_timer_function(unsigned long data, struct pt_regs *regs) atomic_read(&appldata_expire_count)); if (atomic_dec_and_test(&appldata_expire_count)) { atomic_set(&appldata_expire_count, num_online_cpus()); - tasklet_schedule((struct tasklet_struct *) data); + queue_work(appldata_wq, (struct work_struct *) data); } } /* - * appldata_tasklet_function() + * appldata_work_fn() * * call data gathering function for each (active) module */ -static void appldata_tasklet_function(unsigned long data) +static void appldata_work_fn(void *data) { struct list_head *lh; struct appldata_ops *ops; int i; - P_DEBUG(" -= Tasklet =-\n"); + P_DEBUG(" -= Work Queue =-\n"); i = 0; spin_lock(&appldata_ops_lock); list_for_each(lh, &appldata_ops_list) { @@ -231,7 +235,7 @@ static int appldata_diag(char record_nr, u16 function, unsigned long buffer, : "=d" (ry) : "d" (&(appldata_parameter_list)) : "cc"); return (int) ry; } -/********************** timer, tasklet, DIAG ***************************/ +/************************ timer, work, DIAG ****************************/ /****************************** /proc stuff **********************************/ @@ -411,7 +415,7 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp, struct list_head *lh; found = 0; - spin_lock_bh(&appldata_ops_lock); + spin_lock(&appldata_ops_lock); list_for_each(lh, &appldata_ops_list) { tmp_ops = list_entry(lh, struct appldata_ops, list); if (&tmp_ops->ctl_table[2] == ctl) { @@ -419,15 +423,15 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp, } } if (!found) { - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); return -ENODEV; } ops = ctl->data; if (!try_module_get(ops->owner)) { // protect this function - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); return -ENODEV; } - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); if (!*lenp || *ppos) { *lenp = 0; @@ -451,10 +455,11 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp, return -EFAULT; } - spin_lock_bh(&appldata_ops_lock); + spin_lock(&appldata_ops_lock); if ((buf[0] == '1') && (ops->active == 0)) { - if (!try_module_get(ops->owner)) { // protect tasklet - spin_unlock_bh(&appldata_ops_lock); + // protect work queue callback + if (!try_module_get(ops->owner)) { + spin_unlock(&appldata_ops_lock); module_put(ops->owner); return -ENODEV; } @@ -485,7 +490,7 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp, } module_put(ops->owner); } - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); out: *lenp = len; *ppos += len; @@ -529,7 +534,7 @@ int appldata_register_ops(struct appldata_ops *ops) } memset(ops->ctl_table, 0, 4*sizeof(struct ctl_table)); - spin_lock_bh(&appldata_ops_lock); + spin_lock(&appldata_ops_lock); list_for_each(lh, &appldata_ops_list) { tmp_ops = list_entry(lh, struct appldata_ops, list); P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n", @@ -541,18 +546,18 @@ int appldata_register_ops(struct appldata_ops *ops) APPLDATA_PROC_NAME_LENGTH) == 0) { P_ERROR("Name \"%s\" already registered!\n", ops->name); kfree(ops->ctl_table); - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); return -EBUSY; } if (tmp_ops->ctl_nr == ops->ctl_nr) { P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr); kfree(ops->ctl_table); - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); return -EBUSY; } } list_add(&ops->list, &appldata_ops_list); - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); ops->ctl_table[0].ctl_name = CTL_APPLDATA; ops->ctl_table[0].procname = appldata_proc_name; @@ -583,12 +588,12 @@ int appldata_register_ops(struct appldata_ops *ops) */ void appldata_unregister_ops(struct appldata_ops *ops) { - spin_lock_bh(&appldata_ops_lock); + spin_lock(&appldata_ops_lock); unregister_sysctl_table(ops->sysctl_header); list_del(&ops->list); kfree(ops->ctl_table); ops->ctl_table = NULL; - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); P_INFO("%s-ops unregistered!\n", ops->name); } /********************** module-ops management **************************/ @@ -602,7 +607,7 @@ appldata_online_cpu(int cpu) init_virt_timer(&per_cpu(appldata_timer, cpu)); per_cpu(appldata_timer, cpu).function = appldata_timer_function; per_cpu(appldata_timer, cpu).data = (unsigned long) - &appldata_tasklet_struct; + &appldata_work; atomic_inc(&appldata_expire_count); spin_lock(&appldata_timer_lock); __appldata_vtimer_setup(APPLDATA_MOD_TIMER); @@ -615,7 +620,7 @@ appldata_offline_cpu(int cpu) del_virt_timer(&per_cpu(appldata_timer, cpu)); if (atomic_dec_and_test(&appldata_expire_count)) { atomic_set(&appldata_expire_count, num_online_cpus()); - tasklet_schedule(&appldata_tasklet_struct); + queue_work(appldata_wq, &appldata_work); } spin_lock(&appldata_timer_lock); __appldata_vtimer_setup(APPLDATA_MOD_TIMER); @@ -648,7 +653,7 @@ static struct notifier_block __devinitdata appldata_nb = { /* * appldata_init() * - * init timer and tasklet, register /proc entries + * init timer, register /proc entries */ static int __init appldata_init(void) { @@ -657,6 +662,12 @@ static int __init appldata_init(void) P_DEBUG("sizeof(parameter_list) = %lu\n", sizeof(struct appldata_parameter_list)); + appldata_wq = create_singlethread_workqueue("appldata"); + if (!appldata_wq) { + P_ERROR("Could not create work queue\n"); + return -ENOMEM; + } + for_each_online_cpu(i) appldata_online_cpu(i); @@ -670,7 +681,6 @@ static int __init appldata_init(void) appldata_table[1].de->owner = THIS_MODULE; #endif - tasklet_init(&appldata_tasklet_struct, appldata_tasklet_function, 0); P_DEBUG("Base interface initialized.\n"); return 0; } @@ -678,7 +688,7 @@ static int __init appldata_init(void) /* * appldata_exit() * - * stop timer and tasklet, unregister /proc entries + * stop timer, unregister /proc entries */ static void __exit appldata_exit(void) { @@ -690,7 +700,7 @@ static void __exit appldata_exit(void) /* * ops list should be empty, but just in case something went wrong... */ - spin_lock_bh(&appldata_ops_lock); + spin_lock(&appldata_ops_lock); list_for_each(lh, &appldata_ops_list) { ops = list_entry(lh, struct appldata_ops, list); rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC, @@ -700,7 +710,7 @@ static void __exit appldata_exit(void) "return code: %d\n", ops->name, rc); } } - spin_unlock_bh(&appldata_ops_lock); + spin_unlock(&appldata_ops_lock); for_each_online_cpu(i) appldata_offline_cpu(i); @@ -709,7 +719,7 @@ static void __exit appldata_exit(void) unregister_sysctl_table(appldata_sysctl_header); - tasklet_kill(&appldata_tasklet_struct); + destroy_workqueue(appldata_wq); P_DEBUG("... module unloaded!\n"); } /**************************** init / exit ******************************/ diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c index 462ee9a84e76..f0e2fbed3d4c 100644 --- a/arch/s390/appldata/appldata_mem.c +++ b/arch/s390/appldata/appldata_mem.c @@ -68,7 +68,7 @@ struct appldata_mem_data { u64 pgmajfault; /* page faults (major only) */ // <-- New in 2.6 -} appldata_mem_data; +} __attribute__((packed)) appldata_mem_data; static inline void appldata_debug_print(struct appldata_mem_data *mem_data) diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c index dd61638d3027..2a4c7432db4a 100644 --- a/arch/s390/appldata/appldata_net_sum.c +++ b/arch/s390/appldata/appldata_net_sum.c @@ -57,7 +57,7 @@ struct appldata_net_sum_data { u64 rx_dropped; /* no space in linux buffers */ u64 tx_dropped; /* no space available in linux */ u64 collisions; /* collisions while transmitting */ -} appldata_net_sum_data; +} __attribute__((packed)) appldata_net_sum_data; static inline void appldata_print_debug(struct appldata_net_sum_data *net_data) diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c index b83f07484551..e0a476bf4fd6 100644 --- a/arch/s390/appldata/appldata_os.c +++ b/arch/s390/appldata/appldata_os.c @@ -49,7 +49,7 @@ struct appldata_os_per_cpu { u32 per_cpu_softirq; /* ... spent in softirqs */ u32 per_cpu_iowait; /* ... spent while waiting for I/O */ // <-- New in 2.6 -}; +} __attribute__((packed)); struct appldata_os_data { u64 timestamp; @@ -75,7 +75,7 @@ struct appldata_os_data { /* per cpu data */ struct appldata_os_per_cpu os_cpu[0]; -}; +} __attribute__((packed)); static struct appldata_os_data *appldata_os_data; -- cgit v1.2.3 From 4481e8eea761857367162b0957277d5524fbea63 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Mon, 6 Jun 2005 13:35:57 -0700 Subject: [PATCH] ppc32: Fix incorrect CPU_FTR fixup usage for unified caches Runtime feature support for unified caches was testing a userland feature flag (PPC_FEATURE_UNIFIED_CACHE) instead of a cpu feature flag (CPU_FTR_SPLIT_ID_CACHE). Luckily the current defined bit mask for cpu features and userland features do not overlap so this only causes an issue on machines with a unified cache, which is extremely rare on PPC today. Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/misc.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S index e4f1615ec13f..7329ef177a18 100644 --- a/arch/ppc/kernel/misc.S +++ b/arch/ppc/kernel/misc.S @@ -619,7 +619,7 @@ _GLOBAL(flush_instruction_cache) _GLOBAL(flush_icache_range) BEGIN_FTR_SECTION blr /* for 601, do nothing */ -END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE) +END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE) li r5,L1_CACHE_LINE_SIZE-1 andc r3,r3,r5 subf r4,r3,r4 @@ -736,7 +736,7 @@ _GLOBAL(flush_dcache_all) _GLOBAL(__flush_dcache_icache) BEGIN_FTR_SECTION blr /* for 601, do nothing */ -END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE) +END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE) rlwinm r3,r3,0,0,19 /* Get page base address */ li r4,4096/L1_CACHE_LINE_SIZE /* Number of lines in a page */ mtctr r4 @@ -764,7 +764,7 @@ END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE) _GLOBAL(__flush_dcache_icache_phys) BEGIN_FTR_SECTION blr /* for 601, do nothing */ -END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE) +END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE) mfmsr r10 rlwinm r0,r10,0,28,26 /* clear DR */ mtmsr r0 -- cgit v1.2.3 From ad95d6098dd1e94a09d2a1fdf39fd8281fcd8958 Mon Sep 17 00:00:00 2001 From: Eugene Surovegin Date: Tue, 7 Jun 2005 13:22:09 -0700 Subject: [PATCH] ppc32: add 405EP cpu_spec entry Add a definition for PPC 405EP which was lost somehow during 2.4 -> 2.6 transition. Recent change to arch/ppc/kernel/misc.S ("Fix incorrect CPU_FTR fixup usage for unified caches") triggered this bug and 405EP boards don't boot anymore. Signed-off-by: Eugene Surovegin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/cputable.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch') diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c index 8aa5e8c69009..d44b7dc5390a 100644 --- a/arch/ppc/kernel/cputable.c +++ b/arch/ppc/kernel/cputable.c @@ -838,6 +838,17 @@ struct cpu_spec cpu_specs[] = { .icache_bsize = 32, .dcache_bsize = 32, }, + { /* 405EP */ + .pvr_mask = 0xffff0000, + .pvr_value = 0x51210000, + .cpu_name = "405EP", + .cpu_features = CPU_FTR_SPLIT_ID_CACHE | + CPU_FTR_USE_TB, + .cpu_user_features = PPC_FEATURE_32 | + PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC, + .icache_bsize = 32, + .dcache_bsize = 32, + }, #endif /* CONFIG_40x */ #ifdef CONFIG_44x -- cgit v1.2.3 From f8f98a9335db4a7d6285b785180fad720bf22864 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 8 Jun 2005 15:28:24 +0100 Subject: [PATCH] ARM: Fix Xscale copy_page implementation The ARM copypage changes in 2.6.12-rc4-git1 removed the preempt locking from the copypage functions which broke the XScale implementation. This patch fixes the locking on XScale and removes the now unneeded minicache code. Signed-off-by: Russell King Checked-by: Richard Purdie --- arch/arm/mm/Kconfig | 7 --- arch/arm/mm/Makefile | 2 - arch/arm/mm/copypage-xscale.S | 113 ------------------------------------ arch/arm/mm/copypage-xscale.c | 131 ++++++++++++++++++++++++++++++++++++++++++ arch/arm/mm/minicache.c | 73 ----------------------- 5 files changed, 131 insertions(+), 195 deletions(-) delete mode 100644 arch/arm/mm/copypage-xscale.S create mode 100644 arch/arm/mm/copypage-xscale.c (limited to 'arch') diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 48bac7da8c70..ade0e2222f59 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -228,7 +228,6 @@ config CPU_SA1100 select CPU_CACHE_V4WB select CPU_CACHE_VIVT select CPU_TLB_V4WB - select CPU_MINICACHE # XScale config CPU_XSCALE @@ -239,7 +238,6 @@ config CPU_XSCALE select CPU_ABRT_EV5T select CPU_CACHE_VIVT select CPU_TLB_V4WBI - select CPU_MINICACHE # ARMv6 config CPU_V6 @@ -345,11 +343,6 @@ config CPU_TLB_V4WBI config CPU_TLB_V6 bool -config CPU_MINICACHE - bool - help - Processor has a minicache. - comment "Processor Features" config ARM_THUMB diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index ccf316c11e02..59f47d4c2dfe 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -31,8 +31,6 @@ obj-$(CONFIG_CPU_COPY_V6) += copypage-v6.o mmu.o obj-$(CONFIG_CPU_SA1100) += copypage-v4mc.o obj-$(CONFIG_CPU_XSCALE) += copypage-xscale.o -obj-$(CONFIG_CPU_MINICACHE) += minicache.o - obj-$(CONFIG_CPU_TLB_V3) += tlb-v3.o obj-$(CONFIG_CPU_TLB_V4WT) += tlb-v4.o obj-$(CONFIG_CPU_TLB_V4WB) += tlb-v4wb.o diff --git a/arch/arm/mm/copypage-xscale.S b/arch/arm/mm/copypage-xscale.S deleted file mode 100644 index bb277316ef52..000000000000 --- a/arch/arm/mm/copypage-xscale.S +++ /dev/null @@ -1,113 +0,0 @@ -/* - * linux/arch/arm/lib/copypage-xscale.S - * - * Copyright (C) 2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -/* - * General note: - * We don't really want write-allocate cache behaviour for these functions - * since that will just eat through 8K of the cache. - */ - - .text - .align 5 -/* - * XScale optimised copy_user_page - * r0 = destination - * r1 = source - * r2 = virtual user address of ultimate destination page - * - * The source page may have some clean entries in the cache already, but we - * can safely ignore them - break_cow() will flush them out of the cache - * if we eventually end up using our copied page. - * - * What we could do is use the mini-cache to buffer reads from the source - * page. We rely on the mini-cache being smaller than one page, so we'll - * cycle through the complete cache anyway. - */ -ENTRY(xscale_mc_copy_user_page) - stmfd sp!, {r4, r5, lr} - mov r5, r0 - mov r0, r1 - bl map_page_minicache - mov r1, r5 - mov lr, #PAGE_SZ/64-1 - - /* - * Strangely enough, best performance is achieved - * when prefetching destination as well. (NP) - */ - pld [r0, #0] - pld [r0, #32] - pld [r1, #0] - pld [r1, #32] - -1: pld [r0, #64] - pld [r0, #96] - pld [r1, #64] - pld [r1, #96] - -2: ldrd r2, [r0], #8 - ldrd r4, [r0], #8 - mov ip, r1 - strd r2, [r1], #8 - ldrd r2, [r0], #8 - strd r4, [r1], #8 - ldrd r4, [r0], #8 - strd r2, [r1], #8 - strd r4, [r1], #8 - mcr p15, 0, ip, c7, c10, 1 @ clean D line - ldrd r2, [r0], #8 - mcr p15, 0, ip, c7, c6, 1 @ invalidate D line - ldrd r4, [r0], #8 - mov ip, r1 - strd r2, [r1], #8 - ldrd r2, [r0], #8 - strd r4, [r1], #8 - ldrd r4, [r0], #8 - strd r2, [r1], #8 - strd r4, [r1], #8 - mcr p15, 0, ip, c7, c10, 1 @ clean D line - subs lr, lr, #1 - mcr p15, 0, ip, c7, c6, 1 @ invalidate D line - bgt 1b - beq 2b - - ldmfd sp!, {r4, r5, pc} - - .align 5 -/* - * XScale optimised clear_user_page - * r0 = destination - * r1 = virtual user address of ultimate destination page - */ -ENTRY(xscale_mc_clear_user_page) - mov r1, #PAGE_SZ/32 - mov r2, #0 - mov r3, #0 -1: mov ip, r0 - strd r2, [r0], #8 - strd r2, [r0], #8 - strd r2, [r0], #8 - strd r2, [r0], #8 - mcr p15, 0, ip, c7, c10, 1 @ clean D line - subs r1, r1, #1 - mcr p15, 0, ip, c7, c6, 1 @ invalidate D line - bne 1b - mov pc, lr - - __INITDATA - - .type xscale_mc_user_fns, #object -ENTRY(xscale_mc_user_fns) - .long xscale_mc_clear_user_page - .long xscale_mc_copy_user_page - .size xscale_mc_user_fns, . - xscale_mc_user_fns diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c new file mode 100644 index 000000000000..42a6ee255ce0 --- /dev/null +++ b/arch/arm/mm/copypage-xscale.c @@ -0,0 +1,131 @@ +/* + * linux/arch/arm/lib/copypage-xscale.S + * + * Copyright (C) 1995-2005 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This handles the mini data cache, as found on SA11x0 and XScale + * processors. When we copy a user page page, we map it in such a way + * that accesses to this page will not touch the main data cache, but + * will be cached in the mini data cache. This prevents us thrashing + * the main data cache on page faults. + */ +#include +#include + +#include +#include +#include + +/* + * 0xffff8000 to 0xffffffff is reserved for any ARM architecture + * specific hacks for copying pages efficiently. + */ +#define COPYPAGE_MINICACHE 0xffff8000 + +#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \ + L_PTE_CACHEABLE) + +#define TOP_PTE(x) pte_offset_kernel(top_pmd, x) + +static DEFINE_SPINLOCK(minicache_lock); + +/* + * XScale mini-dcache optimised copy_user_page + * + * We flush the destination cache lines just before we write the data into the + * corresponding address. Since the Dcache is read-allocate, this removes the + * Dcache aliasing issue. The writes will be forwarded to the write buffer, + * and merged as appropriate. + */ +static void __attribute__((naked)) +mc_copy_user_page(void *from, void *to) +{ + /* + * Strangely enough, best performance is achieved + * when prefetching destination as well. (NP) + */ + asm volatile( + "stmfd sp!, {r4, r5, lr} \n\ + mov lr, %2 \n\ + pld [r0, #0] \n\ + pld [r0, #32] \n\ + pld [r1, #0] \n\ + pld [r1, #32] \n\ +1: pld [r0, #64] \n\ + pld [r0, #96] \n\ + pld [r1, #64] \n\ + pld [r1, #96] \n\ +2: ldrd r2, [r0], #8 \n\ + ldrd r4, [r0], #8 \n\ + mov ip, r1 \n\ + strd r2, [r1], #8 \n\ + ldrd r2, [r0], #8 \n\ + strd r4, [r1], #8 \n\ + ldrd r4, [r0], #8 \n\ + strd r2, [r1], #8 \n\ + strd r4, [r1], #8 \n\ + mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\ + ldrd r2, [r0], #8 \n\ + mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\ + ldrd r4, [r0], #8 \n\ + mov ip, r1 \n\ + strd r2, [r1], #8 \n\ + ldrd r2, [r0], #8 \n\ + strd r4, [r1], #8 \n\ + ldrd r4, [r0], #8 \n\ + strd r2, [r1], #8 \n\ + strd r4, [r1], #8 \n\ + mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\ + subs lr, lr, #1 \n\ + mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\ + bgt 1b \n\ + beq 2b \n\ + ldmfd sp!, {r4, r5, pc} " + : + : "r" (from), "r" (to), "I" (PAGE_SIZE / 64 - 1)); +} + +void xscale_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr) +{ + spin_lock(&minicache_lock); + + set_pte(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot)); + flush_tlb_kernel_page(COPYPAGE_MINICACHE); + + mc_copy_user_page((void *)COPYPAGE_MINICACHE, kto); + + spin_unlock(&minicache_lock); +} + +/* + * XScale optimised clear_user_page + */ +void __attribute__((naked)) +xscale_mc_clear_user_page(void *kaddr, unsigned long vaddr) +{ + asm volatile( + "mov r1, %0 \n\ + mov r2, #0 \n\ + mov r3, #0 \n\ +1: mov ip, r0 \n\ + strd r2, [r0], #8 \n\ + strd r2, [r0], #8 \n\ + strd r2, [r0], #8 \n\ + strd r2, [r0], #8 \n\ + mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\ + subs r1, r1, #1 \n\ + mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\ + bne 1b \n\ + mov pc, lr" + : + : "I" (PAGE_SIZE / 32)); +} + +struct cpu_user_fns xscale_mc_user_fns __initdata = { + .cpu_clear_user_page = xscale_mc_clear_user_page, + .cpu_copy_user_page = xscale_mc_copy_user_page, +}; diff --git a/arch/arm/mm/minicache.c b/arch/arm/mm/minicache.c index dedf2ab01b2a..e69de29bb2d1 100644 --- a/arch/arm/mm/minicache.c +++ b/arch/arm/mm/minicache.c @@ -1,73 +0,0 @@ -/* - * linux/arch/arm/mm/minicache.c - * - * Copyright (C) 2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This handles the mini data cache, as found on SA11x0 and XScale - * processors. When we copy a user page page, we map it in such a way - * that accesses to this page will not touch the main data cache, but - * will be cached in the mini data cache. This prevents us thrashing - * the main data cache on page faults. - */ -#include -#include - -#include -#include -#include - -/* - * 0xffff8000 to 0xffffffff is reserved for any ARM architecture - * specific hacks for copying pages efficiently. - */ -#define minicache_address (0xffff8000) -#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \ - L_PTE_CACHEABLE) - -static pte_t *minicache_pte; - -/* - * Note that this is intended to be called only from the copy_user_page - * asm code; anything else will require special locking to prevent the - * mini-cache space being re-used. (Note: probably preempt unsafe). - * - * We rely on the fact that the minicache is 2K, and we'll be pushing - * 4K of data through it, so we don't actually have to specifically - * flush the minicache when we change the mapping. - * - * Note also: assert(PAGE_OFFSET <= virt < high_memory). - * Unsafe: preempt, kmap. - */ -unsigned long map_page_minicache(unsigned long virt) -{ - set_pte(minicache_pte, pfn_pte(__pa(virt) >> PAGE_SHIFT, minicache_pgprot)); - flush_tlb_kernel_page(minicache_address); - - return minicache_address; -} - -static int __init minicache_init(void) -{ - pgd_t *pgd; - pmd_t *pmd; - - spin_lock(&init_mm.page_table_lock); - - pgd = pgd_offset_k(minicache_address); - pmd = pmd_alloc(&init_mm, pgd, minicache_address); - if (!pmd) - BUG(); - minicache_pte = pte_alloc_kernel(&init_mm, pmd, minicache_address); - if (!minicache_pte) - BUG(); - - spin_unlock(&init_mm.page_table_lock); - - return 0; -} - -core_initcall(minicache_init); -- cgit v1.2.3 From 7840e5e95c1a8622425f11454600a49b6c718886 Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Wed, 8 Jun 2005 15:12:00 +1000 Subject: [PATCH] ppc64: print negative numbers correctly in boot wrapper if num has a value of -1, accessing the digits[] array will fail and the format string will be printed in funny way, or not at all. This happens if one prints negative numbers. Just change the code to match lib/vsprintf.c asm/div64.h cant be used because u64 maps to u32 for this build. Signed-off-by: Olaf Hering Signed-off-by: Paul Mackerras --- arch/ppc64/boot/prom.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/boot/prom.c b/arch/ppc64/boot/prom.c index 7b607d1862cb..d5218b15824e 100644 --- a/arch/ppc64/boot/prom.c +++ b/arch/ppc64/boot/prom.c @@ -11,6 +11,23 @@ #include #include +extern __u32 __div64_32(unsigned long long *dividend, __u32 divisor); + +/* The unnecessary pointer compare is there + * to check for type safety (n must be 64bit) + */ +# define do_div(n,base) ({ \ + __u32 __base = (base); \ + __u32 __rem; \ + (void)(((typeof((n)) *)0) == ((unsigned long long *)0)); \ + if (((n) >> 32) == 0) { \ + __rem = (__u32)(n) % __base; \ + (n) = (__u32)(n) / __base; \ + } else \ + __rem = __div64_32(&(n), __base); \ + __rem; \ + }) + int (*prom)(void *); void *chosen_handle; @@ -352,7 +369,7 @@ static int skip_atoi(const char **s) #define SPECIAL 32 /* 0x */ #define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */ -static char * number(char * str, long num, int base, int size, int precision, int type) +static char * number(char * str, unsigned long long num, int base, int size, int precision, int type) { char c,sign,tmp[66]; const char *digits="0123456789abcdefghijklmnopqrstuvwxyz"; @@ -367,9 +384,9 @@ static char * number(char * str, long num, int base, int size, int precision, in c = (type & ZEROPAD) ? '0' : ' '; sign = 0; if (type & SIGN) { - if (num < 0) { + if ((signed long long)num < 0) { sign = '-'; - num = -num; + num = - (signed long long)num; size--; } else if (type & PLUS) { sign = '+'; @@ -389,8 +406,7 @@ static char * number(char * str, long num, int base, int size, int precision, in if (num == 0) tmp[i++]='0'; else while (num != 0) { - tmp[i++] = digits[num % base]; - num /= base; + tmp[i++] = digits[do_div(num, base)]; } if (i > precision) precision = i; @@ -426,7 +442,7 @@ int sprintf(char * buf, const char *fmt, ...); int vsprintf(char *buf, const char *fmt, va_list args) { int len; - unsigned long num; + unsigned long long num; int i, base; char * str; const char *s; -- cgit v1.2.3 From 358c6ac0dd4ffa5e44d59d4008a2627aa2f02b6f Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Wed, 8 Jun 2005 15:33:43 +1000 Subject: [PATCH] ppc64 kprobes: don't eat dabr/iabr exceptions Kprobes was eating the hardware instruction and data address breakpoint exceptions. This patch fixes it; kprobes doesn't use those exceptions at all and should ignore them. Signed-off-by: Ananth N Mavinakayanahalli Signed-off-by: Paul Mackerras Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/kprobes.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c index 103daaf73573..5a9f47b18c45 100644 --- a/arch/ppc64/kernel/kprobes.c +++ b/arch/ppc64/kernel/kprobes.c @@ -233,8 +233,6 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, */ preempt_disable(); switch (val) { - case DIE_IABR_MATCH: - case DIE_DABR_MATCH: case DIE_BPT: if (kprobe_handler(args->regs)) ret = NOTIFY_STOP; -- cgit v1.2.3 From ad597bd518559f59ede8d01262cdf4467e13282e Mon Sep 17 00:00:00 2001 From: David Mosberger-Tang Date: Wed, 8 Jun 2005 10:45:00 -0700 Subject: [IA64] Fill holes in FIXADDR_USER space with zero pages. This fixes an oops reported by Jason Baron. Signed-off-by: David Mosberger-Tang Signed-off-by: Tony Luck --- arch/ia64/mm/init.c | 19 +++++++++++++++++-- include/asm-ia64/pgtable.h | 8 ++++++-- 2 files changed, 23 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 547785e3cba2..4eb2f52b87a1 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -305,8 +305,9 @@ setup_gate (void) struct page *page; /* - * Map the gate page twice: once read-only to export the ELF headers etc. and once - * execute-only page to enable privilege-promotion via "epc": + * Map the gate page twice: once read-only to export the ELF + * headers etc. and once execute-only page to enable + * privilege-promotion via "epc": */ page = virt_to_page(ia64_imva(__start_gate_section)); put_kernel_page(page, GATE_ADDR, PAGE_READONLY); @@ -315,6 +316,20 @@ setup_gate (void) put_kernel_page(page, GATE_ADDR + PAGE_SIZE, PAGE_GATE); #else put_kernel_page(page, GATE_ADDR + PERCPU_PAGE_SIZE, PAGE_GATE); + /* Fill in the holes (if any) with read-only zero pages: */ + { + unsigned long addr; + + for (addr = GATE_ADDR + PAGE_SIZE; + addr < GATE_ADDR + PERCPU_PAGE_SIZE; + addr += PAGE_SIZE) + { + put_kernel_page(ZERO_PAGE(0), addr, + PAGE_READONLY); + put_kernel_page(ZERO_PAGE(0), addr + PERCPU_PAGE_SIZE, + PAGE_READONLY); + } + } #endif ia64_patch_gate(); } diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h index ea121a002309..fcc9c3344ab4 100644 --- a/include/asm-ia64/pgtable.h +++ b/include/asm-ia64/pgtable.h @@ -8,7 +8,7 @@ * This hopefully works with any (fixed) IA-64 page-size, as defined * in . * - * Copyright (C) 1998-2004 Hewlett-Packard Co + * Copyright (C) 1998-2005 Hewlett-Packard Co * David Mosberger-Tang */ @@ -551,7 +551,11 @@ do { \ /* These tell get_user_pages() that the first gate page is accessible from user-level. */ #define FIXADDR_USER_START GATE_ADDR -#define FIXADDR_USER_END (GATE_ADDR + 2*PERCPU_PAGE_SIZE) +#ifdef HAVE_BUGGY_SEGREL +# define FIXADDR_USER_END (GATE_ADDR + 2*PAGE_SIZE) +#else +# define FIXADDR_USER_END (GATE_ADDR + 2*PERCPU_PAGE_SIZE) +#endif #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -- cgit v1.2.3 From aeabbbbe126f3d5e61e2db07629443cd10932bb2 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 8 Jun 2005 19:00:16 +0100 Subject: [PATCH] ARM: 2705/1: fix writesw for misaligned source pointer Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/lib/io-writesw-armv4.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/lib/io-writesw-armv4.S b/arch/arm/lib/io-writesw-armv4.S index 6d1d7c27806e..5e240e452af6 100644 --- a/arch/arm/lib/io-writesw-armv4.S +++ b/arch/arm/lib/io-writesw-armv4.S @@ -87,9 +87,9 @@ ENTRY(__raw_writesw) subs r2, r2, #2 orr ip, ip, r3, push_hbyte1 strh ip, [r0] - bpl 2b + bpl 1b -3: tst r2, #1 -2: movne ip, r3, lsr #8 + tst r2, #1 +3: movne ip, r3, lsr #8 strneh ip, [r0] mov pc, lr -- cgit v1.2.3 From dcef1f634657dabe7905af3ccda12cf7f0b6fcc1 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 8 Jun 2005 19:00:47 +0100 Subject: [PATCH] ARM: 2664/2: add support for atomic ops on pre-ARMv6 SMP systems Patch from Nicolas Pitre Not that there might be many of them on the planet, but at least RMK apparently has one. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 16 ++++++++++----- arch/arm/kernel/traps.c | 49 ++++++++++++++++++++++++++++++++++++++++++++ arch/arm/mm/Kconfig | 8 ++++++++ 3 files changed, 68 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 4eb36155dc93..e14278d59882 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -269,7 +269,7 @@ __pabt_svc: add r5, sp, #S_PC ldmia r7, {r2 - r4} @ Get USR pc, cpsr -#if __LINUX_ARM_ARCH__ < 6 +#if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG) @ make sure our user space atomic helper is aborted cmp r2, #VIRT_OFFSET bichs r3, r3, #PSR_Z_BIT @@ -616,11 +616,17 @@ __kuser_helper_start: __kuser_cmpxchg: @ 0xffff0fc0 -#if __LINUX_ARM_ARCH__ < 6 +#if defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG) -#ifdef CONFIG_SMP /* sanity check */ -#error "CONFIG_SMP on a machine supporting pre-ARMv6 processors?" -#endif + /* + * Poor you. No fast solution possible... + * The kernel itself must perform the operation. + * A special ghost syscall is used for that (see traps.c). + */ + swi #0x9ffff0 + mov pc, lr + +#elif __LINUX_ARM_ARCH__ < 6 /* * Theory of operation: diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 14df16b983f4..45d2a032d890 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -464,6 +464,55 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs) #endif return 0; +#ifdef CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG + /* + * Atomically store r1 in *r2 if *r2 is equal to r0 for user space. + * Return zero in r0 if *MEM was changed or non-zero if no exchange + * happened. Also set the user C flag accordingly. + * If access permissions have to be fixed up then non-zero is + * returned and the operation has to be re-attempted. + * + * *NOTE*: This is a ghost syscall private to the kernel. Only the + * __kuser_cmpxchg code in entry-armv.S should be aware of its + * existence. Don't ever use this from user code. + */ + case 0xfff0: + { + extern void do_DataAbort(unsigned long addr, unsigned int fsr, + struct pt_regs *regs); + unsigned long val; + unsigned long addr = regs->ARM_r2; + struct mm_struct *mm = current->mm; + pgd_t *pgd; pmd_t *pmd; pte_t *pte; + + regs->ARM_cpsr &= ~PSR_C_BIT; + spin_lock(&mm->page_table_lock); + pgd = pgd_offset(mm, addr); + if (!pgd_present(*pgd)) + goto bad_access; + pmd = pmd_offset(pgd, addr); + if (!pmd_present(*pmd)) + goto bad_access; + pte = pte_offset_map(pmd, addr); + if (!pte_present(*pte) || !pte_write(*pte)) + goto bad_access; + val = *(unsigned long *)addr; + val -= regs->ARM_r0; + if (val == 0) { + *(unsigned long *)addr = regs->ARM_r1; + regs->ARM_cpsr |= PSR_C_BIT; + } + spin_unlock(&mm->page_table_lock); + return val; + + bad_access: + spin_unlock(&mm->page_table_lock); + /* simulate a read access fault */ + do_DataAbort(addr, 15 + (1 << 11), regs); + return -1; + } +#endif + default: /* Calls 9f00xx..9f07ff are defined to return -ENOSYS if not implemented, rather than raising SIGILL. This diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index ade0e2222f59..3fefb43c67f7 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -422,3 +422,11 @@ config HAS_TLS_REG assume directly accessing that register and always obtain the expected value only on ARMv7 and above. +config NEEDS_SYSCALL_FOR_CMPXCHG + bool + default y if SMP && (CPU_32v5 || CPU_32v4 || CPU_32v3) + help + SMP on a pre-ARMv6 processor? Well OK then. + Forget about fast user space cmpxchg support. + It is just not possible. + -- cgit v1.2.3 From 866ba633a81c1e179038f7527809d9513160a6f7 Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Mon, 6 Jun 2005 02:04:00 -0700 Subject: [IA64] Module gp must point to valid memory Some bits of the kernel assume that gp always points to valid memory, in particular PHYSICAL_MODE_ENTER() assumes that both gp and sp are valid virtual addresses with associated physical pages. The IA64 module loader puts gp well past the end of the module, with no physical backing. Offsets on gp are still valid, but physical mode addressing breaks for modules. Ensure that gp always falls within the module body. Also ensure that gp is 8 byte aligned. Signed-off-by: Keith Owens Signed-off-by: Tony Luck --- arch/ia64/kernel/module.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c index febc091c2f02..f1aca7cffd12 100644 --- a/arch/ia64/kernel/module.c +++ b/arch/ia64/kernel/module.c @@ -825,14 +825,16 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind * XXX Should have an arch-hook for running this after final section * addresses have been selected... */ - /* See if gp can cover the entire core module: */ - uint64_t gp = (uint64_t) mod->module_core + MAX_LTOFF / 2; - if (mod->core_size >= MAX_LTOFF) + uint64_t gp; + if (mod->core_size > MAX_LTOFF) /* * This takes advantage of fact that SHF_ARCH_SMALL gets allocated * at the end of the module. */ - gp = (uint64_t) mod->module_core + mod->core_size - MAX_LTOFF / 2; + gp = mod->core_size - MAX_LTOFF / 2; + else + gp = mod->core_size / 2; + gp = (uint64_t) mod->module_core + ((gp + 7) & -8); mod->arch.gp = gp; DEBUGP("%s: placing gp at 0x%lx\n", __FUNCTION__, gp); } -- cgit v1.2.3 From 86ebacd360767f6a5cf9c8810977593dccf3f3da Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Wed, 8 Jun 2005 12:12:48 -0700 Subject: [IA64] Update comment to describe modes set in default control register. Christian Hildner pointed out that the comment did not match what the code does in cpu_init() when we set up the default control register. Patch based on suggestions from Ken Chen. Signed-off-by: Tony Luck --- arch/ia64/kernel/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index b7e6b4cb374b..d14692e0920a 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -720,7 +720,8 @@ cpu_init (void) ia64_set_kr(IA64_KR_PT_BASE, __pa(ia64_imva(empty_zero_page))); /* - * Initialize default control register to defer all speculative faults. The + * Initialize default control register to defer speculative faults except + * for those arising from TLB misses, which are not deferred. The * kernel MUST NOT depend on a particular setting of these bits (in other words, * the kernel must have recovery code for all speculative accesses). Turn on * dcr.lc as per recommendation by the architecture team. Most IA-32 apps -- cgit v1.2.3 From 70aa488cff83c965c9e1850f48d82b000d0d6c1c Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Fri, 27 May 2005 23:09:00 -0700 Subject: [IA64] Extract correct break number for break.b break.b does not store the break number in cr.iim, instead it stores 0, which makes all break.b instructions look like BUG(). Extract the break number from the instruction itself. Signed-off-by: Keith Owens Signed-off-by: Tony Luck --- arch/ia64/kernel/traps.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'arch') diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index e82ad78081b3..9bad6652d531 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -111,6 +111,24 @@ ia64_bad_break (unsigned long break_num, struct pt_regs *regs) siginfo_t siginfo; int sig, code; + /* break.b always sets cr.iim to 0, which causes problems for + * debuggers. Get the real break number from the original instruction, + * but only for kernel code. User space break.b is left alone, to + * preserve the existing behaviour. All break codings have the same + * format, so there is no need to check the slot type. + */ + if (break_num == 0 && !user_mode(regs)) { + struct ia64_psr *ipsr = ia64_psr(regs); + unsigned long *bundle = (unsigned long *)regs->cr_iip; + unsigned long slot; + switch (ipsr->ri) { + case 0: slot = (bundle[0] >> 5); break; + case 1: slot = (bundle[0] >> 46) | (bundle[1] << 18); break; + default: slot = (bundle[1] >> 23); break; + } + break_num = ((slot >> 36 & 1) << 20) | (slot >> 6 & 0xfffff); + } + /* SIGILL, SIGFPE, SIGSEGV, and SIGBUS want these field initialized: */ siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri); siginfo.si_imm = break_num; -- cgit v1.2.3 From 3df59529ad1045da61698bb5dd8ebaa547aeb46f Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Wed, 8 Jun 2005 15:47:50 -0700 Subject: [PATCH] uml: make the emulated iomem driver work on 2.6 This makes the minimal fixes needed to make the UML iomem driver work in 2.6. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/Kconfig_char | 6 ++++++ arch/um/drivers/mmapper_kern.c | 24 ++++++++++++++++++++---- 2 files changed, 26 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/um/Kconfig_char b/arch/um/Kconfig_char index 3e50fdb67626..62d87b71179b 100644 --- a/arch/um/Kconfig_char +++ b/arch/um/Kconfig_char @@ -204,5 +204,11 @@ config UML_RANDOM http://sourceforge.net/projects/gkernel/). rngd periodically reads /dev/hwrng and injects the entropy into /dev/random. +config MMAPPER + tristate "iomem emulation driver" + help + This driver allows a host file to be used as emulated IO memory inside + UML. + endmenu diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c index a63231dffe05..a37a5ac13c22 100644 --- a/arch/um/drivers/mmapper_kern.c +++ b/arch/um/drivers/mmapper_kern.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -117,24 +118,39 @@ static struct file_operations mmapper_fops = { .release = mmapper_release, }; +static struct miscdevice mmapper_dev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "mmapper", + .fops = &mmapper_fops +}; + static int __init mmapper_init(void) { + int err; + printk(KERN_INFO "Mapper v0.1\n"); v_buf = (char *) find_iomem("mmapper", &mmapper_size); if(mmapper_size == 0){ printk(KERN_ERR "mmapper_init - find_iomem failed\n"); - return(0); + goto out; } - p_buf = __pa(v_buf); + err = misc_register(&mmapper_dev); + if(err){ + printk(KERN_ERR "mmapper - misc_register failed, err = %d\n", + err); + goto out; + } - devfs_mk_cdev(MKDEV(30, 0), S_IFCHR|S_IRUGO|S_IWUGO, "mmapper"); - return(0); + p_buf = __pa(v_buf); +out: + return 0; } static void mmapper_exit(void) { + misc_deregister(&mmapper_dev); } module_init(mmapper_init); -- cgit v1.2.3 From da00d9a5466558ccd9e7b7d04b13d7cb9160c876 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Wed, 8 Jun 2005 15:48:01 -0700 Subject: [PATCH] uml: compile fixes for gcc 4 This is a bunch of compile fixes provoked by building UML with gcc 4. There are a bunch of signedness mismatches, a couple of uninitialized references, and a botched C99 structure initialization which had somehow gone unnoticed. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/chan_user.c | 4 ++-- arch/um/drivers/net_user.c | 2 +- arch/um/drivers/slip.h | 4 ++-- arch/um/drivers/slip_proto.h | 3 ++- arch/um/drivers/slirp.h | 4 ++-- arch/um/drivers/stderr_console.c | 6 +++--- arch/um/include/mconsole.h | 2 +- arch/um/include/net_user.h | 2 +- arch/um/include/os.h | 2 +- arch/um/include/user_util.h | 3 --- arch/um/os-Linux/elf_aux.c | 6 +++++- arch/um/os-Linux/file.c | 2 +- 12 files changed, 21 insertions(+), 19 deletions(-) (limited to 'arch') diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 583b8e137c33..96f3a477c95e 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -168,7 +168,7 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out) printk("winch_tramp : failed to read synchronization byte\n"); printk("read failed, err = %d\n", -n); printk("fd %d will not support SIGWINCH\n", fd); - *fd_out = -1; + pid = -1; } return(pid); } @@ -186,7 +186,7 @@ void register_winch(int fd, struct tty_struct *tty) if(!CHOOSE_MODE_PROC(is_tracer_winch, is_skas_winch, pid, fd, tty) && (pid == -1)){ thread = winch_tramp(fd, tty, &thread_fd); - if(fd != -1){ + if(thread > 0){ register_winch_irq(thread_fd, fd, thread, tty); count = os_write_file(thread_fd, &c, sizeof(c)); diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c index 47229fe4a813..3730d4f12713 100644 --- a/arch/um/drivers/net_user.c +++ b/arch/um/drivers/net_user.c @@ -32,7 +32,7 @@ int tap_open_common(void *dev, char *gate_addr) return(0); } -void tap_check_ips(char *gate_addr, char *eth_addr) +void tap_check_ips(char *gate_addr, unsigned char *eth_addr) { int tap_addr[4]; diff --git a/arch/um/drivers/slip.h b/arch/um/drivers/slip.h index 495f2f1b1420..d523618cd5ac 100644 --- a/arch/um/drivers/slip.h +++ b/arch/um/drivers/slip.h @@ -12,8 +12,8 @@ struct slip_data { char *addr; char *gate_addr; int slave; - char ibuf[ENC_BUF_SIZE]; - char obuf[ENC_BUF_SIZE]; + unsigned char ibuf[ENC_BUF_SIZE]; + unsigned char obuf[ENC_BUF_SIZE]; int more; /* more data: do not read fd until ibuf has been drained */ int pos; int esc; diff --git a/arch/um/drivers/slip_proto.h b/arch/um/drivers/slip_proto.h index 7206361ace45..4c4d94a33100 100644 --- a/arch/um/drivers/slip_proto.h +++ b/arch/um/drivers/slip_proto.h @@ -12,7 +12,8 @@ #define SLIP_ESC_END 0334 /* ESC ESC_END means END 'data' */ #define SLIP_ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */ -static inline int slip_unesc(unsigned char c,char *buf,int *pos, int *esc) +static inline int slip_unesc(unsigned char c, unsigned char *buf, int *pos, + int *esc) { int ret; diff --git a/arch/um/drivers/slirp.h b/arch/um/drivers/slirp.h index 04e407d1e44a..afa4e30284fd 100644 --- a/arch/um/drivers/slirp.h +++ b/arch/um/drivers/slirp.h @@ -24,8 +24,8 @@ struct slirp_data { struct arg_list_dummy_wrapper argw; int pid; int slave; - char ibuf[ENC_BUF_SIZE]; - char obuf[ENC_BUF_SIZE]; + unsigned char ibuf[ENC_BUF_SIZE]; + unsigned char obuf[ENC_BUF_SIZE]; int more; /* more data: do not read fd until ibuf has been drained */ int pos; int esc; diff --git a/arch/um/drivers/stderr_console.c b/arch/um/drivers/stderr_console.c index 98565b53d170..429ae8e6c7e5 100644 --- a/arch/um/drivers/stderr_console.c +++ b/arch/um/drivers/stderr_console.c @@ -22,9 +22,9 @@ static void stderr_console_write(struct console *console, const char *string, } static struct console stderr_console = { - .name "stderr", - .write stderr_console_write, - .flags CON_PRINTBUFFER, + .name = "stderr", + .write = stderr_console_write, + .flags = CON_PRINTBUFFER, }; static int __init stderr_console_init(void) diff --git a/arch/um/include/mconsole.h b/arch/um/include/mconsole.h index 9fbe3083fdd8..cfa368e045a5 100644 --- a/arch/um/include/mconsole.h +++ b/arch/um/include/mconsole.h @@ -56,7 +56,7 @@ struct mc_request int as_interrupt; int originating_fd; - int originlen; + unsigned int originlen; unsigned char origin[128]; /* sockaddr_un */ struct mconsole_request request; diff --git a/arch/um/include/net_user.h b/arch/um/include/net_user.h index 36807b796e9f..89885a77a771 100644 --- a/arch/um/include/net_user.h +++ b/arch/um/include/net_user.h @@ -35,7 +35,7 @@ extern void *get_output_buffer(int *len_out); extern void free_output_buffer(void *buffer); extern int tap_open_common(void *dev, char *gate_addr); -extern void tap_check_ips(char *gate_addr, char *eth_addr); +extern void tap_check_ips(char *gate_addr, unsigned char *eth_addr); extern void read_output(int fd, char *output_out, int len); diff --git a/arch/um/include/os.h b/arch/um/include/os.h index d246d5a24609..881d2988d2d8 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -136,7 +136,7 @@ extern int os_seek_file(int fd, __u64 offset); extern int os_open_file(char *file, struct openflags flags, int mode); extern int os_read_file(int fd, void *buf, int len); extern int os_write_file(int fd, const void *buf, int count); -extern int os_file_size(char *file, long long *size_out); +extern int os_file_size(char *file, unsigned long long *size_out); extern int os_file_modtime(char *file, unsigned long *modtime); extern int os_pipe(int *fd, int stream, int close_on_exec); extern int os_set_fd_async(int fd, int owner); diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h index b8c5b8a95250..7b6a24dfd302 100644 --- a/arch/um/include/user_util.h +++ b/arch/um/include/user_util.h @@ -41,9 +41,6 @@ extern unsigned long highmem; extern char host_info[]; extern char saved_command_line[]; -extern char command_line[]; - -extern char *tempdir; extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end; extern unsigned long _unprotected_end; diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c index 9aee0b62ebca..f0d6060e3e57 100644 --- a/arch/um/os-Linux/elf_aux.c +++ b/arch/um/os-Linux/elf_aux.c @@ -45,7 +45,11 @@ __init void scan_elf_aux( char **envp) elf_aux_hwcap = auxv->a_un.a_val; break; case AT_PLATFORM: - elf_aux_platform = auxv->a_un.a_ptr; + /* elf.h removed the pointer elements from + * a_un, so we have to use a_val, which is + * all that's left. + */ + elf_aux_platform = (char *) auxv->a_un.a_val; break; case AT_PAGESZ: page_size = auxv->a_un.a_val; diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index 77d4066d1af8..fd45bb260907 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -363,7 +363,7 @@ int os_write_file(int fd, const void *buf, int len) (int (*)(int, void *, int)) write, copy_to_user_proc)); } -int os_file_size(char *file, long long *size_out) +int os_file_size(char *file, unsigned long long *size_out) { struct uml_stat buf; int err; -- cgit v1.2.3 From 501cb02b431fb88c7f157c46c8b54de59d1dd463 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Wed, 8 Jun 2005 15:48:13 -0700 Subject: [PATCH] uml: fix strace -f It turns out that we need to check for pending signals when a newly forked process is run for the first time. With strace -f, strace needs to know about the forked process before it gets going. If it doesn't, then it ptraces some bogus values into its registers, and the process segfaults. So, I added calls to interrupt_end, which does that, plus checks for reschedules. There shouldn't be any of those, but x86 does the same thing, so I'm copying that behavior to be safe. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/skas/process_kern.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c index ab5d3271da0b..fc71ef295782 100644 --- a/arch/um/kernel/skas/process_kern.c +++ b/arch/um/kernel/skas/process_kern.c @@ -68,8 +68,11 @@ void new_thread_handler(int sig) * 0 if it just exits */ n = run_kernel_thread(fn, arg, ¤t->thread.exec_buf); - if(n == 1) + if(n == 1){ + /* Handle any immediate reschedules or signals */ + interrupt_end(); userspace(¤t->thread.regs.regs); + } else do_exit(0); } @@ -96,6 +99,8 @@ void fork_handler(int sig) schedule_tail(current->thread.prev_sched); current->thread.prev_sched = NULL; + /* Handle any immediate reschedules or signals */ + interrupt_end(); userspace(¤t->thread.regs.regs); } -- cgit v1.2.3 From 1f96ddb4fb40961a8ebebf7a00bbfaad55aacbd2 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Wed, 8 Jun 2005 15:48:27 -0700 Subject: [PATCH] uml: clean up error path This cleans an error path which used to leak file descriptors by returning without trying to tidy up. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/chan_user.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 96f3a477c95e..5d3768156c92 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -143,22 +143,22 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out) { struct winch_data data; unsigned long stack; - int fds[2], pid, n, err; + int fds[2], n, err; char c; err = os_pipe(fds, 1, 1); if(err < 0){ printk("winch_tramp : os_pipe failed, err = %d\n", -err); - return(err); + goto out; } data = ((struct winch_data) { .pty_fd = fd, .pipe_fd = fds[1], .close_me = fds[0] } ); - pid = run_helper_thread(winch_thread, &data, 0, &stack, 0); - if(pid < 0){ + err = run_helper_thread(winch_thread, &data, 0, &stack, 0); + if(err < 0){ printk("fork of winch_thread failed - errno = %d\n", errno); - return(pid); + goto out_close; } os_close_file(fds[1]); @@ -168,14 +168,22 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out) printk("winch_tramp : failed to read synchronization byte\n"); printk("read failed, err = %d\n", -n); printk("fd %d will not support SIGWINCH\n", fd); - pid = -1; + err = -EINVAL; + goto out_close1; } - return(pid); + return err ; + + out_close: + os_close_file(fds[1]); + out_close1: + os_close_file(fds[0]); + out: + return err; } void register_winch(int fd, struct tty_struct *tty) { - int pid, thread, thread_fd; + int pid, thread, thread_fd = -1; int count; char c = 1; -- cgit v1.2.3 From beb9e1c3f32a0f878765c7c1142f91083739c5bd Mon Sep 17 00:00:00 2001 From: Eugene Surovegin Date: Wed, 8 Jun 2005 15:48:42 -0700 Subject: [PATCH] ppc32: add 405EP cpu_spec entry Add a definition for PPC 405EP which was lost somehow during 2.4 -> 2.6 transition. Recent change to arch/ppc/kernel/misc.S ("Fix incorrect CPU_FTR fixup usage for unified caches") triggered this bug and 405EP boards don't boot anymore. Signed-off-by: Eugene Surovegin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/cputable.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch') diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c index d44b7dc5390a..17abf6cd0d90 100644 --- a/arch/ppc/kernel/cputable.c +++ b/arch/ppc/kernel/cputable.c @@ -849,6 +849,17 @@ struct cpu_spec cpu_specs[] = { .icache_bsize = 32, .dcache_bsize = 32, }, + { /* 405EP */ + .pvr_mask = 0xffff0000, + .pvr_value = 0x51210000, + .cpu_name = "405EP", + .cpu_features = CPU_FTR_SPLIT_ID_CACHE | + CPU_FTR_USE_TB, + .cpu_user_features = PPC_FEATURE_32 | + PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC, + .icache_bsize = 32, + .dcache_bsize = 32, + }, #endif /* CONFIG_40x */ #ifdef CONFIG_44x -- cgit v1.2.3 From 5754c9b649e414f1e3a3ea2ec15e42ed3e42eeb8 Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Wed, 8 Jun 2005 15:49:07 -0700 Subject: [PATCH] Stop arch/i386/kernel/vsyscall-note.o being rebuilt every time arch/i386/kernel/vsyscall-note.o is not listed as a target so its .cmd file is neither considered as a target nor is it read on the next build. This causes vsyscall-note.o to be rebuilt every time that you run make, which causes vmlinux to be rebuilt every time. Signed-off-by: Keith Owens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 0fbcfe00dd8d..51ecd512603d 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -43,7 +43,7 @@ obj-$(CONFIG_SCx200) += scx200.o # Note: kbuild does not track this dependency due to usage of .incbin $(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so) -targets += vsyscall.lds +targets += vsyscall-note.o vsyscall.lds # The DSO images are built using a special linker script. quiet_cmd_syscall = SYSCALL $@ -- cgit v1.2.3 From 42442ed5744b03f5351a142649b8b4c97e6950ab Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 8 Jun 2005 15:49:25 -0700 Subject: [PATCH] revert x86_64-use-the-e820-hole-to-map-the-iommu-agp-aperture Martin Bligh determined that this patch is causing his test box to not boot. Revert. Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/aperture.c | 41 +++++++++++------------------------------ 1 file changed, 11 insertions(+), 30 deletions(-) (limited to 'arch') diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c index a491f72cc966..504e63474993 100644 --- a/arch/x86_64/kernel/aperture.c +++ b/arch/x86_64/kernel/aperture.c @@ -33,12 +33,10 @@ int fallback_aper_force __initdata = 0; int fix_aperture __initdata = 1; -#define NB_ID_3 (PCI_VENDOR_ID_AMD | (0x1103<<16)) +/* This code runs before the PCI subsystem is initialized, so just + access the northbridge directly. */ -static struct resource aper_res = { - .name = "Aperture", - .flags = IORESOURCE_MEM, -}; +#define NB_ID_3 (PCI_VENDOR_ID_AMD | (0x1103<<16)) static u32 __init allocate_aperture(void) { @@ -55,24 +53,11 @@ static u32 __init allocate_aperture(void) aper_size = (32 * 1024 * 1024) << fallback_aper_order; /* - * Aperture has to be naturally aligned. This means an 2GB - * aperture won't have much chances to find a place in the - * lower 4GB of memory. Unfortunately we cannot move it up - * because that would make the IOMMU useless. + * Aperture has to be naturally aligned. This means an 2GB aperture won't + * have much chances to find a place in the lower 4GB of memory. + * Unfortunately we cannot move it up because that would make the + * IOMMU useless. */ - - /* First try to find some free unused space */ - if (!allocate_resource(&iomem_resource, &aper_res, - aper_size, - 0, 0xffffffff, - aper_size, - NULL, NULL)) { - printk(KERN_INFO "Putting aperture at %lx-%lx\n", - aper_res.start, aper_res.end); - return aper_res.start; - } - - /* No free space found. Go on to waste some memory... */ p = __alloc_bootmem_node(nd0, aper_size, aper_size, 0); if (!p || __pa(p)+aper_size > 0xffffffff) { printk("Cannot allocate aperture memory hole (%p,%uK)\n", @@ -81,7 +66,7 @@ static u32 __init allocate_aperture(void) free_bootmem_node(nd0, (unsigned long)p, aper_size); return 0; } - printk("Mapping aperture over %d KB of precious RAM @ %lx\n", + printk("Mapping aperture over %d KB of RAM @ %lx\n", aper_size >> 10, __pa(p)); return (u32)__pa(p); } @@ -102,16 +87,10 @@ static int __init aperture_valid(char *name, u64 aper_base, u32 aper_size) printk("Aperture from %s pointing to e820 RAM. Ignoring.\n",name); return 0; } - /* Don't check the resource here because the aperture is usually - in an e820 reserved area, and we allocated these earlier. */ return 1; } -/* - * Find a PCI capability. - * This code runs before the PCI subsystem is initialized, so just - * access the northbridge directly. - */ +/* Find a PCI capability */ static __u32 __init find_cap(int num, int slot, int func, int cap) { u8 pos; @@ -276,6 +255,8 @@ void __init iommu_hole_init(void) fallback_aper_force) { printk("Your BIOS doesn't leave a aperture memory hole\n"); printk("Please enable the IOMMU option in the BIOS setup\n"); + printk("This costs you %d MB of RAM\n", + 32 << fallback_aper_order); aper_order = fallback_aper_order; aper_alloc = allocate_aperture(); -- cgit v1.2.3 From 63224d1e8b4cf87cc7420201a8cb3b44b9bf0b40 Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Wed, 8 Jun 2005 15:49:41 -0700 Subject: [PATCH] ppc64 kprobes: correct kprobe registration return values Add stricter checks during kprobe registration. Return correct error value so insmod doesn't succeed. Also printk reason for registration failure. Signed-off-by: Ananth N Mavinakayanahalli Signed-off-by: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/kprobes.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c index 5a9f47b18c45..8f3317244311 100644 --- a/arch/ppc64/kernel/kprobes.c +++ b/arch/ppc64/kernel/kprobes.c @@ -45,12 +45,17 @@ static struct pt_regs jprobe_saved_regs; int arch_prepare_kprobe(struct kprobe *p) { + int ret = 0; kprobe_opcode_t insn = *p->addr; - if (IS_MTMSRD(insn) || IS_RFID(insn)) - /* cannot put bp on RFID/MTMSRD */ - return 1; - return 0; + if ((unsigned long)p->addr & 0x03) { + printk("Attempt to register kprobe at an unaligned address\n"); + ret = -EINVAL; + } else if (IS_MTMSRD(insn) || IS_RFID(insn)) { + printk("Cannot register a kprobe on rfid or mtmsrd\n"); + ret = -EINVAL; + } + return ret; } void arch_copy_kprobe(struct kprobe *p) -- cgit v1.2.3 From f829fd23c87918374bac0d90404fe12f0e788d52 Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Wed, 8 Jun 2005 15:50:00 -0700 Subject: [PATCH] ppc64 kprobes: remove spurious MSR_SE masking Remove spurious MSR_SE reset during kprobe processing. single_step_exception() already does it for us. Reset it to be safe when executing the fault_handler. Signed-off-by: Ananth N Mavinakayanahalli Signed-off-by: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/kprobes.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c index 8f3317244311..e950a2058a19 100644 --- a/arch/ppc64/kernel/kprobes.c +++ b/arch/ppc64/kernel/kprobes.c @@ -177,8 +177,6 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs) ret = emulate_step(regs, p->ainsn.insn[0]); if (ret == 0) regs->nip = (unsigned long)p->addr + 4; - - regs->msr &= ~MSR_SE; } static inline int post_kprobe_handler(struct pt_regs *regs) @@ -215,6 +213,7 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr) if (kprobe_status & KPROBE_HIT_SS) { resume_execution(current_kprobe, regs); + regs->msr &= ~MSR_SE; regs->msr |= kprobe_saved_msr; unlock_kprobes(); -- cgit v1.2.3 From 05062d96a23ec0959ee5ea969f40813170c73c0e Mon Sep 17 00:00:00 2001 From: Peter Chubb Date: Wed, 8 Jun 2005 15:50:20 -0700 Subject: [PATCH] ia64: fix floating-point preemption problem There've been reports of problems with CONFIG_PREEMPT=y and the high floating point partition. This is caused by the possibility of preemption and rescheduling on a different processor while saving or restioirng the high partition. The only places where the FPU state is touched are in ptrace, in switch_to(), and where handling a floating-point exception. In switch_to() preemption is off. So it's only in trap.c and ptrace.c that we need to prevent preemption. Here is a patch that adds commentary to make the conditions clear, and adds appropriate preempt_{en,dis}able() calls to make it so. In trap.c I use preempt_enable_no_resched(), as we're about to return to user space where the preemption flag will be checked anyway. Signed-off-by: Peter Chubb Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/kernel/ptrace.c | 6 ++++++ arch/ia64/kernel/traps.c | 11 ++++++++++- include/asm-ia64/processor.h | 10 ++++++++-- 3 files changed, 24 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 08c8a5eb25ab..575a8f657b31 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -635,11 +635,17 @@ ia64_flush_fph (struct task_struct *task) { struct ia64_psr *psr = ia64_psr(ia64_task_regs(task)); + /* + * Prevent migrating this task while + * we're fiddling with the FPU state + */ + preempt_disable(); if (ia64_is_local_fpu_owner(task) && psr->mfh) { psr->mfh = 0; task->thread.flags |= IA64_THREAD_FPH_VALID; ia64_save_fpu(&task->thread.fph[0]); } + preempt_enable(); } /* diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index 9bad6652d531..1861173bd4f6 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -220,13 +220,21 @@ disabled_fph_fault (struct pt_regs *regs) /* first, grant user-level access to fph partition: */ psr->dfh = 0; + + /* + * Make sure that no other task gets in on this processor + * while we're claiming the FPU + */ + preempt_disable(); #ifndef CONFIG_SMP { struct task_struct *fpu_owner = (struct task_struct *)ia64_get_kr(IA64_KR_FPU_OWNER); - if (ia64_is_local_fpu_owner(current)) + if (ia64_is_local_fpu_owner(current)) { + preempt_enable_no_resched(); return; + } if (fpu_owner) ia64_flush_fph(fpu_owner); @@ -244,6 +252,7 @@ disabled_fph_fault (struct pt_regs *regs) */ psr->mfh = 1; } + preempt_enable_no_resched(); } static inline int diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h index 9e1ba8b7fb68..91bbd1f22461 100644 --- a/include/asm-ia64/processor.h +++ b/include/asm-ia64/processor.h @@ -403,7 +403,10 @@ extern void ia64_setreg_unknown_kr (void); * task_struct at this point. */ -/* Return TRUE if task T owns the fph partition of the CPU we're running on. */ +/* + * Return TRUE if task T owns the fph partition of the CPU we're running on. + * Must be called from code that has preemption disabled. + */ #define ia64_is_local_fpu_owner(t) \ ({ \ struct task_struct *__ia64_islfo_task = (t); \ @@ -411,7 +414,10 @@ extern void ia64_setreg_unknown_kr (void); && __ia64_islfo_task == (struct task_struct *) ia64_get_kr(IA64_KR_FPU_OWNER)); \ }) -/* Mark task T as owning the fph partition of the CPU we're running on. */ +/* + * Mark task T as owning the fph partition of the CPU we're running on. + * Must be called from code that has preemption disabled. + */ #define ia64_set_local_fpu_owner(t) do { \ struct task_struct *__ia64_slfo_task = (t); \ __ia64_slfo_task->thread.last_fph_cpu = smp_processor_id(); \ -- cgit v1.2.3 From ce10d979053379553757c3b178a138facaddff82 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 8 Jun 2005 21:59:15 +1000 Subject: [PATCH] ppc64: Fix PER_LINUX32 behaviour This patch fixes some bugs in the ppc64 PER_LINUX32 implementation, noted by Juergen Kreileder: * uname(2) doesn't respect PER_LINUX32, it returns 'ppc64' instead of 'ppc' * Child processes of a PER_LINUX32 process don't inherit PER_LINUX32 Along the way I took the opportunity to move things around so that sys_ppc32.c only has 32-bit syscall emulation functions and to remove the obsolete "fakeppc" command line option. Signed-off-by: Paul Mackerras Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/misc.S | 2 +- arch/ppc64/kernel/sys_ppc32.c | 70 ++++++++++++++++++++----------------------- arch/ppc64/kernel/syscalls.c | 33 ++++++++++++-------- include/asm-ppc64/elf.h | 4 +-- 4 files changed, 56 insertions(+), 53 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S index b944717c1dbd..e3c73b3425dc 100644 --- a/arch/ppc64/kernel/misc.S +++ b/arch/ppc64/kernel/misc.S @@ -792,7 +792,7 @@ _GLOBAL(sys_call_table32) .llong .compat_sys_newstat .llong .compat_sys_newlstat .llong .compat_sys_newfstat - .llong .sys_uname + .llong .sys32_uname .llong .sys_ni_syscall /* 110 old iopl syscall */ .llong .sys_vhangup .llong .sys_ni_syscall /* old idle syscall */ diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c index 7cf7a9600025..9c8e317c598d 100644 --- a/arch/ppc64/kernel/sys_ppc32.c +++ b/arch/ppc64/kernel/sys_ppc32.c @@ -791,31 +791,6 @@ asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn) } -asmlinkage int ppc64_newuname(struct new_utsname __user * name) -{ - int errno = sys_newuname(name); - - if (current->personality == PER_LINUX32 && !errno) { - if(copy_to_user(name->machine, "ppc\0\0", 8)) { - errno = -EFAULT; - } - } - return errno; -} - -asmlinkage int ppc64_personality(unsigned long personality) -{ - int ret; - if (current->personality == PER_LINUX32 && personality == PER_LINUX) - personality = PER_LINUX32; - ret = sys_personality(personality); - if (ret == PER_LINUX32) - ret = PER_LINUX; - return ret; -} - - - /* Note: it is necessary to treat mode as an unsigned int, * with the corresponding cast to a signed int to insure that the * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) @@ -1158,26 +1133,47 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args) } #endif +asmlinkage int sys32_uname(struct old_utsname __user * name) +{ + int err = 0; + + down_read(&uts_sem); + if (copy_to_user(name, &system_utsname, sizeof(*name))) + err = -EFAULT; + up_read(&uts_sem); + if (!err && personality(current->personality) == PER_LINUX32) { + /* change "ppc64" to "ppc" */ + if (__put_user(0, name->machine + 3) + || __put_user(0, name->machine + 4)) + err = -EFAULT; + } + return err; +} + asmlinkage int sys32_olduname(struct oldold_utsname __user * name) { int error; - - if (!name) - return -EFAULT; + if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) return -EFAULT; down_read(&uts_sem); error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); - error -= __put_user(0,name->sysname+__OLD_UTS_LEN); - error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); - error -= __put_user(0,name->nodename+__OLD_UTS_LEN); - error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); - error -= __put_user(0,name->release+__OLD_UTS_LEN); - error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); - error -= __put_user(0,name->version+__OLD_UTS_LEN); - error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); - error = __put_user(0,name->machine+__OLD_UTS_LEN); + error |= __put_user(0,name->sysname+__OLD_UTS_LEN); + error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); + error |= __put_user(0,name->nodename+__OLD_UTS_LEN); + error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); + error |= __put_user(0,name->release+__OLD_UTS_LEN); + error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); + error |= __put_user(0,name->version+__OLD_UTS_LEN); + error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); + error |= __put_user(0,name->machine+__OLD_UTS_LEN); + if (personality(current->personality) == PER_LINUX32) { + /* change "ppc64" to "ppc" */ + error |= __put_user(0, name->machine + 3); + error |= __put_user(0, name->machine + 4); + } + up_read(&uts_sem); error = error ? -EFAULT : 0; diff --git a/arch/ppc64/kernel/syscalls.c b/arch/ppc64/kernel/syscalls.c index f2865ff8d2f9..a8cbb202b8cd 100644 --- a/arch/ppc64/kernel/syscalls.c +++ b/arch/ppc64/kernel/syscalls.c @@ -199,24 +199,33 @@ out: return ret; } -static int __init set_fakeppc(char *str) +long ppc64_personality(unsigned long personality) { - if (*str) - return 0; - init_task.personality = PER_LINUX32; - return 1; + long ret; + + if (personality(current->personality) == PER_LINUX32 + && personality == PER_LINUX) + personality = PER_LINUX32; + ret = sys_personality(personality); + if (ret == PER_LINUX32) + ret = PER_LINUX; + return ret; } -__setup("fakeppc", set_fakeppc); -asmlinkage int sys_uname(struct old_utsname __user * name) +long ppc64_newuname(struct new_utsname __user * name) { - int err = -EFAULT; - + int err = 0; + down_read(&uts_sem); - if (name && !copy_to_user(name, &system_utsname, sizeof (*name))) - err = 0; + if (copy_to_user(name, &system_utsname, sizeof(*name))) + err = -EFAULT; up_read(&uts_sem); - + if (!err && personality(current->personality) == PER_LINUX32) { + /* change ppc64 to ppc */ + if (__put_user(0, name->machine + 3) + || __put_user(0, name->machine + 4)) + err = -EFAULT; + } return err; } diff --git a/include/asm-ppc64/elf.h b/include/asm-ppc64/elf.h index 6c42d61bedd1..085eedb956fe 100644 --- a/include/asm-ppc64/elf.h +++ b/include/asm-ppc64/elf.h @@ -221,9 +221,7 @@ do { \ set_thread_flag(TIF_ABI_PENDING); \ else \ clear_thread_flag(TIF_ABI_PENDING); \ - if (ibcs2) \ - set_personality(PER_SVR4); \ - else if (current->personality != PER_LINUX32) \ + if (personality(current->personality) != PER_LINUX32) \ set_personality(PER_LINUX); \ } while (0) -- cgit v1.2.3 From 4e71e47da3367e8df5994a17fb421ddeaa5025e3 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 9 Jun 2005 16:53:28 +0100 Subject: [PATCH] ARM: Remove zero-byte sized file Remove the remaining zero byte file left over from the Xscale fixes. Signed-off-by: Russell King --- arch/arm/mm/minicache.c | 0 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100644 arch/arm/mm/minicache.c (limited to 'arch') diff --git a/arch/arm/mm/minicache.c b/arch/arm/mm/minicache.c deleted file mode 100644 index e69de29bb2d1..000000000000 -- cgit v1.2.3 From 12035d64565ae7ecbc7fe906e7fcc8a4a71a3789 Mon Sep 17 00:00:00 2001 From: Dave Neuer Date: Thu, 9 Jun 2005 17:40:55 +0100 Subject: [PATCH] ARM: 2706/1: Fix compile on SA-based iPAQs and remove stale CREDITS info Patch from Dave Neuer This fixes the "multiple definitions of cpufreq_get" errors on StrongARM-based iPAQs. Signed-off-by: Dave Neuer Signed-off-by: Russell King --- CREDITS | 6 +----- arch/arm/Kconfig | 2 +- arch/arm/configs/h3600_defconfig | 24 +++++++++++++++--------- arch/arm/mach-sa1100/Kconfig | 2 +- 4 files changed, 18 insertions(+), 16 deletions(-) (limited to 'arch') diff --git a/CREDITS b/CREDITS index 9bd099d960f3..d65ffe5a4d08 100644 --- a/CREDITS +++ b/CREDITS @@ -2475,13 +2475,9 @@ S: Potsdam, New York 13676 S: USA N: Dave Neuer -E: dneuer@innovation-charter.com -E: mr_fred_smoothie@yahoo.com +E: dave.neuer@pobox.com D: Helped implement support for Compaq's H31xx series iPAQs D: Other mostly minor tweaks & bugfixes -S: 325 E. Main St., Suite 3 -S: Carnegie, PA 15105 -S: USA N: Michael Neuffer E: mike@i-Connect.Net diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index bf397a9f8ac2..e787029d1978 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -497,7 +497,7 @@ source "drivers/cpufreq/Kconfig" config CPU_FREQ_SA1100 bool - depends on CPU_FREQ && (SA1100_LART || SA1100_PLEB) + depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB) default y config CPU_FREQ_SA1110 diff --git a/arch/arm/configs/h3600_defconfig b/arch/arm/configs/h3600_defconfig index b4e297dd54b2..b9de07de80fe 100644 --- a/arch/arm/configs/h3600_defconfig +++ b/arch/arm/configs/h3600_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc1-bk2 -# Mon Mar 28 00:02:26 2005 +# Linux kernel version: 2.6.12-rc4 +# Thu Jun 9 01:59:03 2005 # CONFIG_ARM=y CONFIG_MMU=y @@ -16,6 +16,7 @@ CONFIG_GENERIC_IOMAP=y CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -33,6 +34,8 @@ CONFIG_KOBJECT_UEVENT=y # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -120,6 +123,7 @@ CONFIG_CPU_MINICACHE=y # Bus support # CONFIG_ISA=y +CONFIG_ISA_DMA_API=y # # PCCARD (PCMCIA/CardBus) support @@ -138,6 +142,7 @@ CONFIG_PCMCIA_SA1100=y # # Kernel Features # +# CONFIG_SMP is not set # CONFIG_PREEMPT is not set CONFIG_DISCONTIGMEM=y # CONFIG_LEDS is not set @@ -159,12 +164,13 @@ CONFIG_CPU_FREQ_TABLE=y # CONFIG_CPU_FREQ_DEBUG is not set CONFIG_CPU_FREQ_STAT=y # CONFIG_CPU_FREQ_STAT_DETAILS is not set -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y -# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set +CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y +# CONFIG_CPU_FREQ_GOV_PERFORMANCE is not set # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set -# CONFIG_CPU_FREQ_GOV_USERSPACE is not set +CONFIG_CPU_FREQ_GOV_USERSPACE=y # CONFIG_CPU_FREQ_GOV_ONDEMAND is not set +CONFIG_CPU_FREQ_SA1100=y # # Floating point emulation @@ -298,7 +304,6 @@ CONFIG_MTD_SA1100=y # # Block devices # -# CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_DEV_XD is not set # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=m @@ -379,7 +384,6 @@ CONFIG_NET=y # Networking options # # CONFIG_PACKET is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y @@ -476,6 +480,7 @@ CONFIG_IRCOMM=m # CONFIG_SMC_IRCC_FIR is not set # CONFIG_ALI_FIR is not set CONFIG_SA1100_FIR=m +# CONFIG_VIA_FIR is not set # CONFIG_BT is not set CONFIG_NETDEVICES=y # CONFIG_DUMMY is not set @@ -647,7 +652,6 @@ CONFIG_LEGACY_PTY_COUNT=256 # # TPM devices # -# CONFIG_TCG_TPM is not set # # I2C support @@ -676,9 +680,11 @@ CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_SOFT_CURSOR=y +# CONFIG_FB_MACMODES is not set # CONFIG_FB_MODE_HELPERS is not set # CONFIG_FB_TILEBLITTING is not set CONFIG_FB_SA1100=y +# CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set # diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig index 50cde576dadf..6923316b3d0d 100644 --- a/arch/arm/mach-sa1100/Kconfig +++ b/arch/arm/mach-sa1100/Kconfig @@ -150,7 +150,7 @@ config SA1100_SSP config H3600_SLEEVE tristate "Compaq iPAQ Handheld sleeve support" - depends on SA1100_H3600 + depends on SA1100_H3100 || SA1100_H3600 help Choose this option to enable support for extension packs (sleeves) for the Compaq iPAQ H3XXX series of handheld computers. This option -- cgit v1.2.3 From a2a64769d0d3cc0380b4b6ecdcb781a2f790a69e Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 9 Jun 2005 12:29:00 -0700 Subject: [IA64] Fix race condition in the rt_sigprocmask fastcall current->blocked will be set to the value of current->thread_info->flags if the cmpxchg to update thread_info->flags fails. For performance reasons the store into current->blocked was placed in the cmpxchg loop. However, the cmpxchg overwrites the register holding the value to be stored. In the rare case of a retry the value of thread_info->flags will be written into current->blocked. The fix is to use another register so that the register containing the current->blocked value is not overwritten. Signed-off-by: Christoph Lameter Signed-off-by: Tony Luck --- arch/ia64/kernel/fsys.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S index 4f3cdef75797..962b6c4e32b5 100644 --- a/arch/ia64/kernel/fsys.S +++ b/arch/ia64/kernel/fsys.S @@ -460,9 +460,9 @@ EX(.fail_efault, ld8 r14=[r33]) // r14 <- *set ;; st8 [r2]=r14 // update current->blocked with new mask - cmpxchg4.acq r14=[r9],r18,ar.ccv // current->thread_info->flags <- r18 + cmpxchg4.acq r8=[r9],r18,ar.ccv // current->thread_info->flags <- r18 ;; - cmp.ne p6,p0=r17,r14 // update failed? + cmp.ne p6,p0=r17,r8 // update failed? (p6) br.cond.spnt.few 1b // yes -> retry #ifdef CONFIG_SMP -- cgit v1.2.3 From 7aa0b0d5ab5eed29a49fce55868456bca073d77e Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Thu, 9 Jun 2005 21:59:21 +0100 Subject: [PATCH] ARM: 2707/2: Fix badge4 CPU Frequency build faliure Patch from Vincent Sanders This fixes the "multiple definitions of cpufreq_get" build faliure on the Badge4 SA1100 platform. Signed-off-by: Vincent Sanders Signed-off-by: Russell King --- arch/arm/Kconfig | 2 +- arch/arm/configs/badge4_defconfig | 29 ++++++++++++++++++----------- 2 files changed, 19 insertions(+), 12 deletions(-) (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e787029d1978..0aeb5f91d11d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -497,7 +497,7 @@ source "drivers/cpufreq/Kconfig" config CPU_FREQ_SA1100 bool - depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB) + depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4) default y config CPU_FREQ_SA1110 diff --git a/arch/arm/configs/badge4_defconfig b/arch/arm/configs/badge4_defconfig index 2b4059d2f8e4..5d92af975d87 100644 --- a/arch/arm/configs/badge4_defconfig +++ b/arch/arm/configs/badge4_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc1-bk2 -# Sat Mar 26 21:32:26 2005 +# Linux kernel version: 2.6.12-rc6-git3 +# Thu Jun 9 19:00:50 2005 # CONFIG_ARM=y CONFIG_MMU=y @@ -16,6 +16,7 @@ CONFIG_GENERIC_IOMAP=y CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -34,6 +35,8 @@ CONFIG_EMBEDDED=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -109,7 +112,6 @@ CONFIG_CPU_ABRT_EV4=y CONFIG_CPU_CACHE_V4WB=y CONFIG_CPU_CACHE_VIVT=y CONFIG_CPU_TLB_V4WB=y -CONFIG_CPU_MINICACHE=y # # Processor Features @@ -122,6 +124,7 @@ CONFIG_FORCE_MAX_ZONEORDER=9 # Bus support # CONFIG_ISA=y +CONFIG_ISA_DMA_API=y # # PCCARD (PCMCIA/CardBus) support @@ -131,6 +134,7 @@ CONFIG_ISA=y # # Kernel Features # +# CONFIG_SMP is not set # CONFIG_PREEMPT is not set CONFIG_DISCONTIGMEM=y # CONFIG_LEDS is not set @@ -152,12 +156,14 @@ CONFIG_CPU_FREQ_TABLE=y # CONFIG_CPU_FREQ_DEBUG is not set CONFIG_CPU_FREQ_STAT=y # CONFIG_CPU_FREQ_STAT_DETAILS is not set -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y -# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set +CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set -# CONFIG_CPU_FREQ_GOV_USERSPACE is not set +CONFIG_CPU_FREQ_GOV_USERSPACE=y # CONFIG_CPU_FREQ_GOV_ONDEMAND is not set +# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set +CONFIG_CPU_FREQ_SA1100=y # # Floating point emulation @@ -294,7 +300,6 @@ CONFIG_PARPORT_NOT_PC=y # # Block devices # -# CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_DEV_XD is not set # CONFIG_PARIDE is not set # CONFIG_BLK_DEV_COW_COMMON is not set @@ -428,7 +433,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y @@ -526,6 +530,7 @@ CONFIG_IRDA_ULTRA=y # CONFIG_SMC_IRCC_FIR is not set # CONFIG_ALI_FIR is not set CONFIG_SA1100_FIR=y +# CONFIG_VIA_FIR is not set CONFIG_BT=m CONFIG_BT_L2CAP=m # CONFIG_BT_SCO is not set @@ -618,7 +623,6 @@ CONFIG_NET_WIRELESS=y # # CONFIG_SERIO is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices @@ -687,7 +691,6 @@ CONFIG_RTC=m # # TPM devices # -# CONFIG_TCG_TPM is not set # # I2C support @@ -736,6 +739,7 @@ CONFIG_I2C_ELEKTOR=m # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47B397 is not set @@ -747,6 +751,7 @@ CONFIG_I2C_ELEKTOR=m # # Other I2C Chip support # +# CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set @@ -871,7 +876,6 @@ CONFIG_USB_PRINTER=m # CONFIG_USB_STORAGE=y CONFIG_USB_STORAGE_DEBUG=y -# CONFIG_USB_STORAGE_RW_DETECT is not set # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set @@ -954,9 +958,11 @@ CONFIG_USB_USS720=m # CONFIG_USB_SERIAL=m CONFIG_USB_SERIAL_GENERIC=y +# CONFIG_USB_SERIAL_AIRPRIME is not set CONFIG_USB_SERIAL_BELKIN=m CONFIG_USB_SERIAL_WHITEHEAT=m CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m +# CONFIG_USB_SERIAL_CP2101 is not set # CONFIG_USB_SERIAL_CYPRESS_M8 is not set CONFIG_USB_SERIAL_EMPEG=m CONFIG_USB_SERIAL_FTDI_SIO=m @@ -985,6 +991,7 @@ CONFIG_USB_SERIAL_KEYSPAN=m # CONFIG_USB_SERIAL_KOBIL_SCT is not set CONFIG_USB_SERIAL_MCT_U232=m CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set # CONFIG_USB_SERIAL_SAFE is not set # CONFIG_USB_SERIAL_TI is not set CONFIG_USB_SERIAL_CYBERJACK=m -- cgit v1.2.3 From 07c6d48fd10a8eeae899e06876aa0b885a8e2a1b Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Thu, 9 Jun 2005 21:59:22 +0100 Subject: [PATCH] ARM: 2708/1: Fix hackkit CPU Frequency build faliure Patch from Vincent Sanders This fixes the "multiple definitions of cpufreq_get" build faliure on the hackkit SA1100 platform. Signed-off-by: Vincent Sanders Signed-off-by: Russell King --- arch/arm/Kconfig | 2 +- arch/arm/configs/hackkit_defconfig | 22 ++++++++++++---------- 2 files changed, 13 insertions(+), 11 deletions(-) (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0aeb5f91d11d..5eee3bcb22b5 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -497,7 +497,7 @@ source "drivers/cpufreq/Kconfig" config CPU_FREQ_SA1100 bool - depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4) + depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT) default y config CPU_FREQ_SA1110 diff --git a/arch/arm/configs/hackkit_defconfig b/arch/arm/configs/hackkit_defconfig index 6987c8c5ddb4..fb41a36a5a68 100644 --- a/arch/arm/configs/hackkit_defconfig +++ b/arch/arm/configs/hackkit_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc1-bk2 -# Mon Mar 28 00:22:34 2005 +# Linux kernel version: 2.6.12-rc6-git3 +# Thu Jun 9 20:58:58 2005 # CONFIG_ARM=y CONFIG_MMU=y @@ -16,6 +16,7 @@ CONFIG_GENERIC_IOMAP=y CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -34,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -109,7 +112,6 @@ CONFIG_CPU_ABRT_EV4=y CONFIG_CPU_CACHE_V4WB=y CONFIG_CPU_CACHE_VIVT=y CONFIG_CPU_TLB_V4WB=y -CONFIG_CPU_MINICACHE=y # # Processor Features @@ -119,6 +121,7 @@ CONFIG_CPU_MINICACHE=y # Bus support # CONFIG_ISA=y +CONFIG_ISA_DMA_API=y # # PCCARD (PCMCIA/CardBus) support @@ -128,6 +131,7 @@ CONFIG_ISA=y # # Kernel Features # +# CONFIG_SMP is not set # CONFIG_PREEMPT is not set CONFIG_DISCONTIGMEM=y CONFIG_LEDS=y @@ -151,12 +155,14 @@ CONFIG_CPU_FREQ_TABLE=y # CONFIG_CPU_FREQ_DEBUG is not set CONFIG_CPU_FREQ_STAT=y # CONFIG_CPU_FREQ_STAT_DETAILS is not set -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y -# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set +CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set -# CONFIG_CPU_FREQ_GOV_USERSPACE is not set +CONFIG_CPU_FREQ_GOV_USERSPACE=y # CONFIG_CPU_FREQ_GOV_ONDEMAND is not set +# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set +CONFIG_CPU_FREQ_SA1100=y # # Floating point emulation @@ -280,7 +286,6 @@ CONFIG_MTD_CFI_UTIL=y # # Block devices # -# CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_DEV_XD is not set # CONFIG_BLK_DEV_COW_COMMON is not set # CONFIG_BLK_DEV_LOOP is not set @@ -338,7 +343,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y @@ -484,7 +488,6 @@ CONFIG_SERIO=y CONFIG_SERIO_SERPORT=y # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices @@ -533,7 +536,6 @@ CONFIG_LEGACY_PTY_COUNT=256 # # TPM devices # -# CONFIG_TCG_TPM is not set # # I2C support -- cgit v1.2.3 From 7fbdf1a23be1837b8bc5bcec096015ca99e00aa7 Mon Sep 17 00:00:00 2001 From: Eugene Surovegin Date: Thu, 9 Jun 2005 12:36:29 -0700 Subject: [PATCH] ppc32: add 405EP cpu_spec entry Add a definition for PPC 405EP which was lost somehow during 2.4 -> 2.6 transition. Recent change to arch/ppc/kernel/misc.S ("Fix incorrect CPU_FTR fixup usage for unified caches") triggered this bug and 405EP boards don't boot anymore. Signed-off-by: Eugene Surovegin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/cputable.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch') diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c index 17abf6cd0d90..ce2618ac8ac2 100644 --- a/arch/ppc/kernel/cputable.c +++ b/arch/ppc/kernel/cputable.c @@ -860,6 +860,17 @@ struct cpu_spec cpu_specs[] = { .icache_bsize = 32, .dcache_bsize = 32, }, + { /* 405EP */ + .pvr_mask = 0xffff0000, + .pvr_value = 0x51210000, + .cpu_name = "405EP", + .cpu_features = CPU_FTR_SPLIT_ID_CACHE | + CPU_FTR_USE_TB, + .cpu_user_features = PPC_FEATURE_32 | + PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC, + .icache_bsize = 32, + .dcache_bsize = 32, + }, #endif /* CONFIG_40x */ #ifdef CONFIG_44x -- cgit v1.2.3 From 0086b5ec7834b78358dea3f713275a9ae2b229ec Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 10 Jun 2005 14:19:02 +1000 Subject: [PATCH] ppc32: Fix nasty sleep/wakeup problem Despite all the care lately in making the powermac sleep/wakeup as robust as possible, there is still a nasty related to the use of cpufreq on PMU based machines. Unfortunately, it affects paulus old powerbook so I have to fix it :) We didn't manage to understand what is precisely going on, it leads to memory corruption and might have to do with RAM not beeing properly refreshed when a cpufreq transition is done right before the sleep. The best workaround (and less intrusive at this point) we could come up with is included in this patch. We basically do _not_ force a switch to high speed on suspend anymore (that is what is causing the problem) on those machines. We still force a speed switch on wakeup (since we don't know what speed we are coming back from sleep at, and that seems to work fine). Since, during this short interval, the actual CPU speed might be incorrect, we also hack around by multiplying loops_per_jiffy by 2 (max speed factor on those machines) during early wakeup stage to make sure udelay's during that time aren't too short. For after 2.6.12, we'll change udelay implementation to use the CPU timebase (which is always constant) instead like we do on ppc64 and thus get rid of all those problems. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/ppc/platforms/pmac_cpufreq.c | 7 +++++-- drivers/macintosh/via-pmu.c | 6 ++++++ 2 files changed, 11 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ppc/platforms/pmac_cpufreq.c b/arch/ppc/platforms/pmac_cpufreq.c index 937f46df711e..5fdd4f607a40 100644 --- a/arch/ppc/platforms/pmac_cpufreq.c +++ b/arch/ppc/platforms/pmac_cpufreq.c @@ -83,7 +83,7 @@ static u32 frequency_gpio; static u32 slew_done_gpio; static int no_schedule; static int has_cpu_l2lve; - +static int is_pmu_based; /* There are only two frequency states for each processor. Values * are in kHz for the time being. @@ -463,7 +463,7 @@ static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, u32 state) */ no_schedule = 1; sleep_freq = cur_freq; - if (cur_freq == low_freq) + if (cur_freq == low_freq && !is_pmu_based) do_set_cpu_speed(CPUFREQ_HIGH, 0); return 0; } @@ -588,6 +588,7 @@ static int __pmac pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) return 1; hi_freq = (*value) / 1000; set_speed_proc = pmu_set_cpu_speed; + is_pmu_based = 1; return 0; } @@ -692,6 +693,7 @@ static int __init pmac_cpufreq_setup(void) hi_freq = cur_freq; low_freq = 400000; set_speed_proc = pmu_set_cpu_speed; + is_pmu_based = 1; } /* Else check for TiPb 400 & 500 */ else if (machine_is_compatible("PowerBook3,2")) { @@ -703,6 +705,7 @@ static int __init pmac_cpufreq_setup(void) hi_freq = cur_freq; low_freq = 300000; set_speed_proc = pmu_set_cpu_speed; + is_pmu_based = 1; } /* Else check for 750FX */ else if (PVR_VER(mfspr(SPRN_PVR)) == 0x7000) diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index bb9f4044c74d..b941ee220997 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -2593,6 +2593,9 @@ powerbook_sleep_Core99(void) /* Restore VIA */ restore_via_state(); + /* tweak LPJ before cpufreq is there */ + loops_per_jiffy *= 2; + /* Restore video */ pmac_call_early_video_resume(); @@ -2613,6 +2616,9 @@ powerbook_sleep_Core99(void) pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, pmu_intr_mask); pmu_wait_complete(&req); + /* Restore LPJ, cpufreq will adjust the cpu frequency */ + loops_per_jiffy /= 2; + pmac_wakeup_devices(); return 0; -- cgit v1.2.3 From 90abb7b5f3bd9271a455cd640a70c285b4fd0c89 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 10 Jun 2005 09:37:21 -0700 Subject: ppc: remove two extraneous descriptors for the 405EP CPU The patch to add them keeps on getting applied, over and over again ;) Hopefully no more. --- arch/ppc/kernel/cputable.c | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'arch') diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c index ce2618ac8ac2..d44b7dc5390a 100644 --- a/arch/ppc/kernel/cputable.c +++ b/arch/ppc/kernel/cputable.c @@ -849,28 +849,6 @@ struct cpu_spec cpu_specs[] = { .icache_bsize = 32, .dcache_bsize = 32, }, - { /* 405EP */ - .pvr_mask = 0xffff0000, - .pvr_value = 0x51210000, - .cpu_name = "405EP", - .cpu_features = CPU_FTR_SPLIT_ID_CACHE | - CPU_FTR_USE_TB, - .cpu_user_features = PPC_FEATURE_32 | - PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC, - .icache_bsize = 32, - .dcache_bsize = 32, - }, - { /* 405EP */ - .pvr_mask = 0xffff0000, - .pvr_value = 0x51210000, - .cpu_name = "405EP", - .cpu_features = CPU_FTR_SPLIT_ID_CACHE | - CPU_FTR_USE_TB, - .cpu_user_features = PPC_FEATURE_32 | - PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC, - .icache_bsize = 32, - .dcache_bsize = 32, - }, #endif /* CONFIG_40x */ #ifdef CONFIG_44x -- cgit v1.2.3 From bb011b8e8eded247cb71cb6d10e47517aacbd542 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 12 Jun 2005 23:26:05 +0100 Subject: [PATCH] ARM: 2709/1: Systems with PCMCIA should also see IDE options (for CompactFlash memories) Patch from David Brownell The ARM generic Kconfig filters out IDE options ... except for an error prone ARMload of special cases. This adds one general case to the systems that will offer IDE options: kernels with PCMCIA support, which probably want to use IDE to access CompactFlash cards. This might allow many (most?) of the other cases to disappear, for systems that only see IDE hardware through CF cards. Right now this one patch is used to gate access to CF cards, including MicroDrives, for both omap_cf and at91_cf drivers. Signed-off-by: David Brownell Signed-off-by: Russell King --- arch/arm/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5eee3bcb22b5..475950c8a831 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -689,7 +689,9 @@ source "drivers/block/Kconfig" source "drivers/acorn/block/Kconfig" -if ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE +if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \ + || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \ + || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE source "drivers/ide/Kconfig" endif -- cgit v1.2.3 From 707f919c643937e43a04e31d0502ecbf5a10445a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 12 Jun 2005 11:25:43 +0200 Subject: [PATCH] M68k: Update defconfigs Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds --- arch/m68k/configs/amiga_defconfig | 15 ++++----------- arch/m68k/configs/apollo_defconfig | 7 ++++--- arch/m68k/configs/atari_defconfig | 7 ++++--- arch/m68k/configs/bvme6000_defconfig | 7 ++++--- arch/m68k/configs/hp300_defconfig | 7 ++++--- arch/m68k/configs/mac_defconfig | 7 ++++--- arch/m68k/configs/mvme147_defconfig | 7 ++++--- arch/m68k/configs/mvme16x_defconfig | 7 ++++--- arch/m68k/configs/q40_defconfig | 15 ++++----------- arch/m68k/configs/sun3_defconfig | 7 ++++--- arch/m68k/configs/sun3x_defconfig | 7 ++++--- arch/m68k/defconfig | 7 ++++--- 12 files changed, 48 insertions(+), 52 deletions(-) (limited to 'arch') diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index 7dbf997ff205..5649fbae430e 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:05:59 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:23 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -135,7 +137,6 @@ CONFIG_PARPORT_1284=y # CONFIG_AMIGA_FLOPPY=y CONFIG_AMIGA_Z2RAM=y -# CONFIG_BLK_DEV_XD is not set # CONFIG_PARIDE is not set # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=y @@ -223,17 +224,12 @@ CONFIG_SCSI_CONSTANTS=y # # SCSI low-level drivers # -# CONFIG_SCSI_7000FASST is not set # CONFIG_SCSI_AHA152X is not set -# CONFIG_SCSI_AHA1542 is not set # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_IN2000 is not set # CONFIG_SCSI_SATA is not set -# CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DTC3280 is not set -# CONFIG_SCSI_EATA is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set -# CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_GENERIC_NCR5380 is not set # CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set # CONFIG_SCSI_PPA is not set @@ -244,7 +240,6 @@ CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_QLOGIC_FAS is not set # CONFIG_SCSI_SYM53C416 is not set # CONFIG_SCSI_T128 is not set -# CONFIG_SCSI_U14_34F is not set # CONFIG_SCSI_DEBUG is not set CONFIG_A3000_SCSI=y CONFIG_A2091_SCSI=y @@ -492,7 +487,6 @@ CONFIG_HYDRA=m CONFIG_ZORRO8390=m CONFIG_APNE=m # CONFIG_NET_VENDOR_3COM is not set -# CONFIG_LANCE is not set # CONFIG_NET_VENDOR_SMC is not set # CONFIG_NET_VENDOR_RACAL is not set # CONFIG_AT1700 is not set @@ -620,7 +614,6 @@ CONFIG_SERIO_SERPORT=m # CONFIG_SERIO_PARKBD is not set # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index 505a2968e604..63024b0b7ac3 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:00 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:27 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -497,7 +499,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index 617aa73c3250..6433da2d2ce2 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:18 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:32 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -531,7 +533,6 @@ CONFIG_SERIO_SERPORT=y CONFIG_SERIO_LIBPS2=y # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index b501db51d9ec..da2a23a21463 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:19 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:37 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -496,7 +498,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index 2bf6cef4f2b2..51251883adf8 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:21 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:41 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -498,7 +500,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index 7074f856820c..15b80abfe94a 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:24 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:45 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -540,7 +542,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index 61f09bc4846a..f0d5534f6830 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:28 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:50 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -498,7 +500,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 69c01004ec41..1d5c46ff3c81 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:31 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:53 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -497,7 +499,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index 550ec26006c1..856238634d42 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:34 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:58 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -125,7 +127,6 @@ CONFIG_FW_LOADER=m # Block devices # # CONFIG_BLK_DEV_FD is not set -# CONFIG_BLK_DEV_XD is not set # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_CRYPTOLOOP=m @@ -210,17 +211,12 @@ CONFIG_SCSI_CONSTANTS=y # # SCSI low-level drivers # -# CONFIG_SCSI_7000FASST is not set # CONFIG_SCSI_AHA152X is not set -# CONFIG_SCSI_AHA1542 is not set # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_IN2000 is not set # CONFIG_SCSI_SATA is not set -# CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DTC3280 is not set -# CONFIG_SCSI_EATA is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set -# CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_GENERIC_NCR5380 is not set # CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set # CONFIG_SCSI_NCR53C406A is not set @@ -229,7 +225,6 @@ CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_QLOGIC_FAS is not set # CONFIG_SCSI_SYM53C416 is not set # CONFIG_SCSI_T128 is not set -# CONFIG_SCSI_U14_34F is not set # CONFIG_SCSI_DEBUG is not set # @@ -466,7 +461,6 @@ CONFIG_EQUALIZER=m CONFIG_NET_ETHERNET=y CONFIG_MII=m # CONFIG_NET_VENDOR_3COM is not set -# CONFIG_LANCE is not set # CONFIG_NET_VENDOR_SMC is not set # CONFIG_NET_VENDOR_RACAL is not set # CONFIG_AT1700 is not set @@ -570,7 +564,6 @@ CONFIG_SERIO_Q40KBD=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index 5b5a619645aa..b96b4584735a 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:37 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:35:02 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -487,7 +489,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index 704e42344cba..997143b7928a 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:06:40 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:35:06 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -35,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -497,7 +499,6 @@ CONFIG_SERIO_SERPORT=m CONFIG_SERIO_LIBPS2=m # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices diff --git a/arch/m68k/defconfig b/arch/m68k/defconfig index 5b2296ecba82..7d935e48a9a8 100644 --- a/arch/m68k/defconfig +++ b/arch/m68k/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.12-rc2-m68k -# Tue Apr 5 14:05:31 2005 +# Linux kernel version: 2.6.12-rc6-m68k +# Tue Jun 7 20:34:17 2005 # CONFIG_M68K=y CONFIG_MMU=y @@ -33,6 +33,8 @@ CONFIG_KOBJECT_UEVENT=y # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -355,7 +357,6 @@ CONFIG_SERIO_SERPORT=y CONFIG_SERIO_LIBPS2=y # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y # # Character devices -- cgit v1.2.3 From c3315ede1bdf7bc706b59870df41b9cdb6e3995a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 12 Jun 2005 11:25:42 +0200 Subject: [PATCH] M68k: Mark Sun-3 NCR5380 SCSI broken M68k: Mark Sun-3 NCR5380 SCSI broken until NCR5380_abort() and NCR5380_bus_reset() are replaced with real new-style EH routines (the old EH SCSI constants were removed in 2.6.12-rc3). Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds --- arch/m68k/configs/sun3_defconfig | 1 - drivers/scsi/Kconfig | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index b96b4584735a..af903b5c5708 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -173,7 +173,6 @@ CONFIG_SCSI_CONSTANTS=y # # CONFIG_SCSI_SATA is not set # CONFIG_SCSI_DEBUG is not set -CONFIG_SUN3_SCSI=y # # Multi-device support (RAID and LVM) diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 1811cb240315..27fec8a5eb5b 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1752,7 +1752,7 @@ config SCSI_NCR53C7xx_FAST config SUN3_SCSI tristate "Sun3 NCR5380 SCSI" - depends on SUN3 && SCSI + depends on SUN3 && SCSI && BROKEN help This option will enable support for the OBIO (onboard io) NCR5380 SCSI controller found in the Sun 3/50 and 3/60, as well as for -- cgit v1.2.3 From a8fa3f0c59f8a1e1d89542cff0be5b057b684653 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Mon, 13 Jun 2005 22:35:41 +0100 Subject: [PATCH] ARM: 2711/1: fix compilation on PXA targets with CONFIG_PM=n Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mach-pxa/pxa25x.c | 4 ++++ arch/arm/mach-pxa/pxa27x.c | 4 ++++ 2 files changed, 8 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index b6d945a6e774..7869c3b4e62f 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -16,6 +16,7 @@ * initialization stuff for PXA machines which can be overridden later if * need be. */ +#include #include #include #include @@ -103,6 +104,7 @@ unsigned int get_lcdclk_frequency_10khz(void) EXPORT_SYMBOL(get_lcdclk_frequency_10khz); +#ifdef CONFIG_PM int pxa_cpu_pm_prepare(suspend_state_t state) { @@ -131,3 +133,5 @@ void pxa_cpu_pm_enter(suspend_state_t state) break; } } + +#endif diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index aa3c3b2ab75e..893964fb9659 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -120,6 +120,8 @@ EXPORT_SYMBOL(get_clk_frequency_khz); EXPORT_SYMBOL(get_memclk_frequency_10khz); EXPORT_SYMBOL(get_lcdclk_frequency_10khz); +#ifdef CONFIG_PM + int pxa_cpu_pm_prepare(suspend_state_t state) { switch (state) { @@ -153,6 +155,8 @@ void pxa_cpu_pm_enter(suspend_state_t state) } } +#endif + /* * device registration specific to PXA27x. */ -- cgit v1.2.3 From 8447f3f4659d91c2f11a1476522369c9d6ae6ada Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 13 Jun 2005 15:52:04 -0700 Subject: [PATCH] uml: remove duplicate includes A few files include the same header twice. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/main.c | 2 -- arch/um/kernel/process.c | 1 - arch/um/kernel/um_arch.c | 1 - 3 files changed, 4 deletions(-) (limited to 'arch') diff --git a/arch/um/kernel/main.c b/arch/um/kernel/main.c index e42e6364ca13..e59f58152678 100644 --- a/arch/um/kernel/main.c +++ b/arch/um/kernel/main.c @@ -24,8 +24,6 @@ #include "mode.h" #include "choose-mode.h" #include "uml-config.h" -#include "irq_user.h" -#include "time_user.h" #include "os.h" /* Set in set_stklim, which is called from main and __wrap_malloc. diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 51f8e5a8ac6a..793c77c6ef9c 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -30,7 +30,6 @@ #include "init.h" #include "os.h" #include "uml-config.h" -#include "ptrace_user.h" #include "choose-mode.h" #include "mode.h" #ifdef UML_CONFIG_MODE_SKAS diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 418427107b29..8736d098f0ee 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -26,7 +26,6 @@ #include "asm/setup.h" #include "ubd_user.h" #include "asm/current.h" -#include "asm/setup.h" #include "user_util.h" #include "kern_util.h" #include "kern.h" -- cgit v1.2.3 From 36ca1195ad7f760a6af3814cb002bd3a3d4b4db1 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 13 Jun 2005 15:52:10 -0700 Subject: [PATCH] uml: build cleanups Fix a build failure when CONFIG_MODE_SKAS is disabled and make a Makefile comment fit in 80 columns. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/sysdep-i386/ptrace.h | 5 ++--- arch/um/scripts/Makefile.rules | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/um/include/sysdep-i386/ptrace.h b/arch/um/include/sysdep-i386/ptrace.h index 6eaeb9919983..c8ee9559f3ab 100644 --- a/arch/um/include/sysdep-i386/ptrace.h +++ b/arch/um/include/sysdep-i386/ptrace.h @@ -8,6 +8,8 @@ #include "uml-config.h" #include "user_constants.h" +#include "sysdep/faultinfo.h" +#include "choose-mode.h" #define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long)) #define MAX_REG_OFFSET (UM_FRAME_SIZE) @@ -58,9 +60,6 @@ extern int sysemu_supported; #define PTRACE_SYSEMU_SINGLESTEP 32 #endif -#include "sysdep/faultinfo.h" -#include "choose-mode.h" - union uml_pt_regs { #ifdef UML_CONFIG_MODE_TT struct tt_regs { diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules index 0b2491883d9c..98346c711493 100644 --- a/arch/um/scripts/Makefile.rules +++ b/arch/um/scripts/Makefile.rules @@ -14,7 +14,7 @@ quiet_cmd_make_link = SYMLINK $@ cmd_make_link = ln -sf $(srctree)/arch/$(SUBARCH)/$($(notdir $@)-dir)/$(notdir $@) $@ # this needs to be before the foreach, because targets does not accept -# complete paths like $(obj)/$(f). To make sure this works, use a := assignment, +# complete paths like $(obj)/$(f). To make sure this works, use a := assignment # or we will get $(obj)/$(f) in the "targets" value. # Also, this forces you to use the := syntax when assigning to targets. # Otherwise the line below will cause an infinite loop (if you don't know why, -- cgit v1.2.3 From 98fdffccea6cc3fe9dba32c0fcc310bcb5d71529 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 13 Jun 2005 15:52:14 -0700 Subject: [PATCH] uml: use fork instead of clone Convert the boot-time host ptrace testing from clone to fork. They were essentially doing fork anyway. This cleans up the code a bit, and makes valgrind a bit happier about grinding it. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/process.c | 48 +++++++++++++++++++----------------------------- 1 file changed, 19 insertions(+), 29 deletions(-) (limited to 'arch') diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 793c77c6ef9c..1b5ef3e96c71 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -130,7 +130,7 @@ int start_fork_tramp(void *thread_arg, unsigned long temp_stack, return(arg.pid); } -static int ptrace_child(void *arg) +static int ptrace_child(void) { int ret; int pid = os_getpid(), ppid = getppid(); @@ -159,20 +159,16 @@ static int ptrace_child(void *arg) _exit(ret); } -static int start_ptraced_child(void **stack_out) +static int start_ptraced_child(void) { - void *stack; - unsigned long sp; int pid, n, status; - stack = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if(stack == MAP_FAILED) - panic("check_ptrace : mmap failed, errno = %d", errno); - sp = (unsigned long) stack + PAGE_SIZE - sizeof(void *); - pid = clone(ptrace_child, (void *) sp, SIGCHLD, NULL); + pid = fork(); + if(pid == 0) + ptrace_child(); + if(pid < 0) - panic("check_ptrace : clone failed, errno = %d", errno); + panic("check_ptrace : fork failed, errno = %d", errno); CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED)); if(n < 0) panic("check_ptrace : wait failed, errno = %d", errno); @@ -180,7 +176,6 @@ static int start_ptraced_child(void **stack_out) panic("check_ptrace : expected SIGSTOP, got status = %d", status); - *stack_out = stack; return(pid); } @@ -188,12 +183,12 @@ static int start_ptraced_child(void **stack_out) * just avoid using sysemu, not panic, but only if SYSEMU features are broken. * So only for SYSEMU features we test mustpanic, while normal host features * must work anyway!*/ -static int stop_ptraced_child(int pid, void *stack, int exitcode, int mustpanic) +static int stop_ptraced_child(int pid, int exitcode, int mustexit) { int status, n, ret = 0; if(ptrace(PTRACE_CONT, pid, 0, 0) < 0) - panic("check_ptrace : ptrace failed, errno = %d", errno); + panic("stop_ptraced_child : ptrace failed, errno = %d", errno); CATCH_EINTR(n = waitpid(pid, &status, 0)); if(!WIFEXITED(status) || (WEXITSTATUS(status) != exitcode)) { int exit_with = WEXITSTATUS(status); @@ -204,15 +199,13 @@ static int stop_ptraced_child(int pid, void *stack, int exitcode, int mustpanic) printk("check_ptrace : child exited with exitcode %d, while " "expecting %d; status 0x%x", exit_with, exitcode, status); - if (mustpanic) + if (mustexit) panic("\n"); else printk("\n"); ret = -1; } - if(munmap(stack, PAGE_SIZE) < 0) - panic("check_ptrace : munmap failed, errno = %d", errno); return ret; } @@ -234,12 +227,11 @@ __uml_setup("nosysemu", nosysemu_cmd_param, static void __init check_sysemu(void) { - void *stack; int pid, syscall, n, status, count=0; printk("Checking syscall emulation patch for ptrace..."); sysemu_supported = 0; - pid = start_ptraced_child(&stack); + pid = start_ptraced_child(); if(ptrace(PTRACE_SYSEMU, pid, 0, 0) < 0) goto fail; @@ -257,7 +249,7 @@ static void __init check_sysemu(void) panic("check_sysemu : failed to modify system " "call return, errno = %d", errno); - if (stop_ptraced_child(pid, stack, 0, 0) < 0) + if (stop_ptraced_child(pid, 0, 0) < 0) goto fail_stopped; sysemu_supported = 1; @@ -265,7 +257,7 @@ static void __init check_sysemu(void) set_using_sysemu(!force_sysemu_disabled); printk("Checking advanced syscall emulation patch for ptrace..."); - pid = start_ptraced_child(&stack); + pid = start_ptraced_child(); while(1){ count++; if(ptrace(PTRACE_SYSEMU_SINGLESTEP, pid, 0, 0) < 0) @@ -290,7 +282,7 @@ static void __init check_sysemu(void) break; } } - if (stop_ptraced_child(pid, stack, 0, 0) < 0) + if (stop_ptraced_child(pid, 0, 0) < 0) goto fail_stopped; sysemu_supported = 2; @@ -301,18 +293,17 @@ static void __init check_sysemu(void) return; fail: - stop_ptraced_child(pid, stack, 1, 0); + stop_ptraced_child(pid, 1, 0); fail_stopped: printk("missing\n"); } void __init check_ptrace(void) { - void *stack; int pid, syscall, n, status; printk("Checking that ptrace can change system call numbers..."); - pid = start_ptraced_child(&stack); + pid = start_ptraced_child(); if (ptrace(PTRACE_OLDSETOPTIONS, pid, 0, (void *)PTRACE_O_TRACESYSGOOD) < 0) panic("check_ptrace: PTRACE_SETOPTIONS failed, errno = %d", errno); @@ -339,7 +330,7 @@ void __init check_ptrace(void) break; } } - stop_ptraced_child(pid, stack, 0, 1); + stop_ptraced_child(pid, 0, 1); printk("OK\n"); check_sysemu(); } @@ -371,11 +362,10 @@ void forward_pending_sigio(int target) static inline int check_skas3_ptrace_support(void) { struct ptrace_faultinfo fi; - void *stack; int pid, n, ret = 1; printf("Checking for the skas3 patch in the host..."); - pid = start_ptraced_child(&stack); + pid = start_ptraced_child(); n = ptrace(PTRACE_FAULTINFO, pid, 0, &fi); if (n < 0) { @@ -390,7 +380,7 @@ static inline int check_skas3_ptrace_support(void) } init_registers(pid); - stop_ptraced_child(pid, stack, 1, 1); + stop_ptraced_child(pid, 1, 1); return(ret); } -- cgit v1.2.3 From a3c77c67a443e631febf708bb0c376caede31657 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 13 Jun 2005 15:52:18 -0700 Subject: [PATCH] uml: slirp and slip driver cleanups and fixes This patch merges a lot of duplicated code in the slip and slirp drivers, abstracts out the slip protocol, and makes the slip driver work in 2.6. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/Makefile | 6 +- arch/um/drivers/slip.h | 23 +------ arch/um/drivers/slip_common.c | 54 +++++++++++++++ arch/um/drivers/slip_common.h | 104 +++++++++++++++++++++++++++++ arch/um/drivers/slip_kern.c | 12 ++-- arch/um/drivers/slip_proto.h | 94 -------------------------- arch/um/drivers/slip_user.c | 152 +++++++++++++++++------------------------- arch/um/drivers/slirp.h | 26 ++------ arch/um/drivers/slirp_kern.c | 5 +- arch/um/drivers/slirp_user.c | 104 ++++++----------------------- 10 files changed, 258 insertions(+), 322 deletions(-) create mode 100644 arch/um/drivers/slip_common.c create mode 100644 arch/um/drivers/slip_common.h delete mode 100644 arch/um/drivers/slip_proto.h (limited to 'arch') diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile index 323f72c64cd2..b2de9916c32c 100644 --- a/arch/um/drivers/Makefile +++ b/arch/um/drivers/Makefile @@ -22,8 +22,8 @@ obj-y := stdio_console.o fd.o chan_kern.o chan_user.o line.o obj-$(CONFIG_SSL) += ssl.o obj-$(CONFIG_STDERR_CONSOLE) += stderr_console.o -obj-$(CONFIG_UML_NET_SLIP) += slip.o -obj-$(CONFIG_UML_NET_SLIRP) += slirp.o +obj-$(CONFIG_UML_NET_SLIP) += slip.o slip_common.o +obj-$(CONFIG_UML_NET_SLIRP) += slirp.o slip_common.o obj-$(CONFIG_UML_NET_DAEMON) += daemon.o obj-$(CONFIG_UML_NET_MCAST) += mcast.o #obj-$(CONFIG_UML_NET_PCAP) += pcap.o $(PCAP) @@ -41,6 +41,6 @@ obj-$(CONFIG_UML_WATCHDOG) += harddog.o obj-$(CONFIG_BLK_DEV_COW_COMMON) += cow_user.o obj-$(CONFIG_UML_RANDOM) += random.o -USER_OBJS := fd.o null.o pty.o tty.o xterm.o +USER_OBJS := fd.o null.o pty.o tty.o xterm.o slip_common.o include arch/um/scripts/Makefile.rules diff --git a/arch/um/drivers/slip.h b/arch/um/drivers/slip.h index d523618cd5ac..bb0dab41c2e4 100644 --- a/arch/um/drivers/slip.h +++ b/arch/um/drivers/slip.h @@ -1,10 +1,7 @@ #ifndef __UM_SLIP_H #define __UM_SLIP_H -#define BUF_SIZE 1500 - /* two bytes each for a (pathological) max packet of escaped chars + * - * terminating END char + initial END char */ -#define ENC_BUF_SIZE (2 * BUF_SIZE + 2) +#include "slip_common.h" struct slip_data { void *dev; @@ -12,28 +9,12 @@ struct slip_data { char *addr; char *gate_addr; int slave; - unsigned char ibuf[ENC_BUF_SIZE]; - unsigned char obuf[ENC_BUF_SIZE]; - int more; /* more data: do not read fd until ibuf has been drained */ - int pos; - int esc; + struct slip_proto slip; }; extern struct net_user_info slip_user_info; -extern int set_umn_addr(int fd, char *addr, char *ptp_addr); extern int slip_user_read(int fd, void *buf, int len, struct slip_data *pri); extern int slip_user_write(int fd, void *buf, int len, struct slip_data *pri); #endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/slip_common.c b/arch/um/drivers/slip_common.c new file mode 100644 index 000000000000..e89cfc68fc3e --- /dev/null +++ b/arch/um/drivers/slip_common.c @@ -0,0 +1,54 @@ +#include +#include "slip_common.h" +#include "net_user.h" + +int slip_proto_read(int fd, void *buf, int len, struct slip_proto *slip) +{ + int i, n, size, start; + + if(slip->more > 0){ + i = 0; + while(i < slip->more){ + size = slip_unesc(slip->ibuf[i++], slip->ibuf, + &slip->pos, &slip->esc); + if(size){ + memcpy(buf, slip->ibuf, size); + memmove(slip->ibuf, &slip->ibuf[i], + slip->more - i); + slip->more = slip->more - i; + return size; + } + } + slip->more = 0; + } + + n = net_read(fd, &slip->ibuf[slip->pos], + sizeof(slip->ibuf) - slip->pos); + if(n <= 0) + return n; + + start = slip->pos; + for(i = 0; i < n; i++){ + size = slip_unesc(slip->ibuf[start + i], slip->ibuf,&slip->pos, + &slip->esc); + if(size){ + memcpy(buf, slip->ibuf, size); + memmove(slip->ibuf, &slip->ibuf[start+i+1], + n - (i + 1)); + slip->more = n - (i + 1); + return size; + } + } + return 0; +} + +int slip_proto_write(int fd, void *buf, int len, struct slip_proto *slip) +{ + int actual, n; + + actual = slip_esc(buf, slip->obuf, len); + n = net_write(fd, slip->obuf, actual); + if(n < 0) + return n; + else return len; +} diff --git a/arch/um/drivers/slip_common.h b/arch/um/drivers/slip_common.h new file mode 100644 index 000000000000..2ae76d8f1be1 --- /dev/null +++ b/arch/um/drivers/slip_common.h @@ -0,0 +1,104 @@ +#ifndef __UM_SLIP_COMMON_H +#define __UM_SLIP_COMMON_H + +#define BUF_SIZE 1500 + /* two bytes each for a (pathological) max packet of escaped chars + * + * terminating END char + initial END char */ +#define ENC_BUF_SIZE (2 * BUF_SIZE + 2) + +/* SLIP protocol characters. */ +#define SLIP_END 0300 /* indicates end of frame */ +#define SLIP_ESC 0333 /* indicates byte stuffing */ +#define SLIP_ESC_END 0334 /* ESC ESC_END means END 'data' */ +#define SLIP_ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */ + +static inline int slip_unesc(unsigned char c, unsigned char *buf, int *pos, + int *esc) +{ + int ret; + + switch(c){ + case SLIP_END: + *esc = 0; + ret=*pos; + *pos=0; + return(ret); + case SLIP_ESC: + *esc = 1; + return(0); + case SLIP_ESC_ESC: + if(*esc){ + *esc = 0; + c = SLIP_ESC; + } + break; + case SLIP_ESC_END: + if(*esc){ + *esc = 0; + c = SLIP_END; + } + break; + } + buf[(*pos)++] = c; + return(0); +} + +static inline int slip_esc(unsigned char *s, unsigned char *d, int len) +{ + unsigned char *ptr = d; + unsigned char c; + + /* + * Send an initial END character to flush out any + * data that may have accumulated in the receiver + * due to line noise. + */ + + *ptr++ = SLIP_END; + + /* + * For each byte in the packet, send the appropriate + * character sequence, according to the SLIP protocol. + */ + + while (len-- > 0) { + switch(c = *s++) { + case SLIP_END: + *ptr++ = SLIP_ESC; + *ptr++ = SLIP_ESC_END; + break; + case SLIP_ESC: + *ptr++ = SLIP_ESC; + *ptr++ = SLIP_ESC_ESC; + break; + default: + *ptr++ = c; + break; + } + } + *ptr++ = SLIP_END; + return (ptr - d); +} + +struct slip_proto { + unsigned char ibuf[ENC_BUF_SIZE]; + unsigned char obuf[ENC_BUF_SIZE]; + int more; /* more data: do not read fd until ibuf has been drained */ + int pos; + int esc; +}; + +#define SLIP_PROTO_INIT { \ + .ibuf = { '\0' }, \ + .obuf = { '\0' }, \ + .more = 0, \ + .pos = 0, \ + .esc = 0 \ +} + +extern int slip_proto_read(int fd, void *buf, int len, + struct slip_proto *slip); +extern int slip_proto_write(int fd, void *buf, int len, + struct slip_proto *slip); + +#endif diff --git a/arch/um/drivers/slip_kern.c b/arch/um/drivers/slip_kern.c index 0886eedba213..9a6f5c85f902 100644 --- a/arch/um/drivers/slip_kern.c +++ b/arch/um/drivers/slip_kern.c @@ -26,16 +26,16 @@ void slip_init(struct net_device *dev, void *data) .addr = NULL, .gate_addr = init->gate_addr, .slave = -1, - .ibuf = { '\0' }, - .obuf = { '\0' }, - .pos = 0, - .esc = 0, + .slip = SLIP_PROTO_INIT, .dev = dev }); dev->init = NULL; + dev->header_cache_update = NULL; + dev->hard_header_cache = NULL; + dev->hard_header = NULL; dev->hard_header_len = 0; - dev->addr_len = 4; - dev->type = ARPHRD_ETHER; + dev->addr_len = 0; + dev->type = ARPHRD_SLIP; dev->tx_queue_len = 256; dev->flags = IFF_NOARP; printk("SLIP backend - SLIP IP = %s\n", spri->gate_addr); diff --git a/arch/um/drivers/slip_proto.h b/arch/um/drivers/slip_proto.h deleted file mode 100644 index 4c4d94a33100..000000000000 --- a/arch/um/drivers/slip_proto.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#ifndef __UM_SLIP_PROTO_H__ -#define __UM_SLIP_PROTO_H__ - -/* SLIP protocol characters. */ -#define SLIP_END 0300 /* indicates end of frame */ -#define SLIP_ESC 0333 /* indicates byte stuffing */ -#define SLIP_ESC_END 0334 /* ESC ESC_END means END 'data' */ -#define SLIP_ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */ - -static inline int slip_unesc(unsigned char c, unsigned char *buf, int *pos, - int *esc) -{ - int ret; - - switch(c){ - case SLIP_END: - *esc = 0; - ret=*pos; - *pos=0; - return(ret); - case SLIP_ESC: - *esc = 1; - return(0); - case SLIP_ESC_ESC: - if(*esc){ - *esc = 0; - c = SLIP_ESC; - } - break; - case SLIP_ESC_END: - if(*esc){ - *esc = 0; - c = SLIP_END; - } - break; - } - buf[(*pos)++] = c; - return(0); -} - -static inline int slip_esc(unsigned char *s, unsigned char *d, int len) -{ - unsigned char *ptr = d; - unsigned char c; - - /* - * Send an initial END character to flush out any - * data that may have accumulated in the receiver - * due to line noise. - */ - - *ptr++ = SLIP_END; - - /* - * For each byte in the packet, send the appropriate - * character sequence, according to the SLIP protocol. - */ - - while (len-- > 0) { - switch(c = *s++) { - case SLIP_END: - *ptr++ = SLIP_ESC; - *ptr++ = SLIP_ESC_END; - break; - case SLIP_ESC: - *ptr++ = SLIP_ESC; - *ptr++ = SLIP_ESC_ESC; - break; - default: - *ptr++ = c; - break; - } - } - *ptr++ = SLIP_END; - return (ptr - d); -} - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c index d94846b1b4cf..71af444e591f 100644 --- a/arch/um/drivers/slip_user.c +++ b/arch/um/drivers/slip_user.c @@ -13,7 +13,7 @@ #include "user.h" #include "net_user.h" #include "slip.h" -#include "slip_proto.h" +#include "slip_common.h" #include "helper.h" #include "os.h" @@ -77,41 +77,51 @@ static int slip_tramp(char **argv, int fd) err = os_pipe(fds, 1, 0); if(err < 0){ printk("slip_tramp : pipe failed, err = %d\n", -err); - return(err); + goto out; } err = 0; pe_data.stdin = fd; pe_data.stdout = fds[1]; pe_data.close_me = fds[0]; - pid = run_helper(slip_pre_exec, &pe_data, argv, NULL); + err = run_helper(slip_pre_exec, &pe_data, argv, NULL); + if(err < 0) + goto out_close; + pid = err; + + output_len = page_size(); + output = um_kmalloc(output_len); + if(output == NULL){ + printk("slip_tramp : failed to allocate output buffer\n"); + os_kill_process(pid, 1); + err = -ENOMEM; + goto out_free; + } - if(pid < 0) err = pid; - else { - output_len = page_size(); - output = um_kmalloc(output_len); - if(output == NULL) - printk("slip_tramp : failed to allocate output " - "buffer\n"); - - os_close_file(fds[1]); - read_output(fds[0], output, output_len); - if(output != NULL){ - printk("%s", output); - kfree(output); - } - CATCH_EINTR(err = waitpid(pid, &status, 0)); - if(err < 0) - err = errno; - else if(!WIFEXITED(status) || (WEXITSTATUS(status) != 0)){ - printk("'%s' didn't exit with status 0\n", argv[0]); - err = -EINVAL; - } + os_close_file(fds[1]); + read_output(fds[0], output, output_len); + printk("%s", output); + + CATCH_EINTR(err = waitpid(pid, &status, 0)); + if(err < 0) + err = errno; + else if(!WIFEXITED(status) || (WEXITSTATUS(status) != 0)){ + printk("'%s' didn't exit with status 0\n", argv[0]); + err = -EINVAL; } + else err = 0; os_close_file(fds[0]); - return(err); +out_free: + kfree(output); + return err; + +out_close: + os_close_file(fds[0]); + os_close_file(fds[1]); +out: + return err; } static int slip_open(void *data) @@ -123,21 +133,26 @@ static int slip_open(void *data) NULL }; int sfd, mfd, err; - mfd = get_pty(); - if(mfd < 0){ - printk("umn : Failed to open pty, err = %d\n", -mfd); - return(mfd); + err = get_pty(); + if(err < 0){ + printk("slip-open : Failed to open pty, err = %d\n", -err); + goto out; } - sfd = os_open_file(ptsname(mfd), of_rdwr(OPENFLAGS()), 0); - if(sfd < 0){ - printk("Couldn't open tty for slip line, err = %d\n", -sfd); - os_close_file(mfd); - return(sfd); + mfd = err; + + err = os_open_file(ptsname(mfd), of_rdwr(OPENFLAGS()), 0); + if(err < 0){ + printk("Couldn't open tty for slip line, err = %d\n", -err); + goto out_close; } - if(set_up_tty(sfd)) return(-1); + sfd = err; + + if(set_up_tty(sfd)) + goto out_close2; + pri->slave = sfd; - pri->pos = 0; - pri->esc = 0; + pri->slip.pos = 0; + pri->slip.esc = 0; if(pri->gate_addr != NULL){ sprintf(version_buf, "%d", UML_NET_VERSION); strcpy(gate_buf, pri->gate_addr); @@ -146,12 +161,12 @@ static int slip_open(void *data) if(err < 0){ printk("slip_tramp failed - err = %d\n", -err); - return(err); + goto out_close2; } err = os_get_ifname(pri->slave, pri->name); if(err < 0){ printk("get_ifname failed, err = %d\n", -err); - return(err); + goto out_close2; } iter_addresses(pri->dev, open_addr, pri->name); } @@ -160,10 +175,16 @@ static int slip_open(void *data) if(err < 0){ printk("Failed to set slip discipline encapsulation - " "err = %d\n", -err); - return(err); + goto out_close2; } } return(mfd); +out_close2: + os_close_file(sfd); +out_close: + os_close_file(mfd); +out: + return err; } static void slip_close(int fd, void *data) @@ -190,48 +211,12 @@ static void slip_close(int fd, void *data) int slip_user_read(int fd, void *buf, int len, struct slip_data *pri) { - int i, n, size, start; - - if(pri->more>0) { - i = 0; - while(i < pri->more) { - size = slip_unesc(pri->ibuf[i++], - pri->ibuf, &pri->pos, &pri->esc); - if(size){ - memcpy(buf, pri->ibuf, size); - memmove(pri->ibuf, &pri->ibuf[i], pri->more-i); - pri->more=pri->more-i; - return(size); - } - } - pri->more=0; - } - - n = net_read(fd, &pri->ibuf[pri->pos], sizeof(pri->ibuf) - pri->pos); - if(n <= 0) return(n); - - start = pri->pos; - for(i = 0; i < n; i++){ - size = slip_unesc(pri->ibuf[start + i], - pri->ibuf, &pri->pos, &pri->esc); - if(size){ - memcpy(buf, pri->ibuf, size); - memmove(pri->ibuf, &pri->ibuf[start+i+1], n-(i+1)); - pri->more=n-(i+1); - return(size); - } - } - return(0); + return slip_proto_read(fd, buf, len, &pri->slip); } int slip_user_write(int fd, void *buf, int len, struct slip_data *pri) { - int actual, n; - - actual = slip_esc(buf, pri->obuf, len); - n = net_write(fd, pri->obuf, actual); - if(n < 0) return(n); - else return(len); + return slip_proto_write(fd, buf, len, &pri->slip); } static int slip_set_mtu(int mtu, void *data) @@ -267,14 +252,3 @@ struct net_user_info slip_user_info = { .delete_address = slip_del_addr, .max_packet = BUF_SIZE }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/slirp.h b/arch/um/drivers/slirp.h index afa4e30284fd..6cf88ab580c9 100644 --- a/arch/um/drivers/slirp.h +++ b/arch/um/drivers/slirp.h @@ -1,10 +1,7 @@ #ifndef __UM_SLIRP_H #define __UM_SLIRP_H -#define BUF_SIZE 1500 - /* two bytes each for a (pathological) max packet of escaped chars + * - * terminating END char + initial END char */ -#define ENC_BUF_SIZE (2 * BUF_SIZE + 2) +#include "slip_common.h" #define SLIRP_MAX_ARGS 100 /* @@ -24,28 +21,13 @@ struct slirp_data { struct arg_list_dummy_wrapper argw; int pid; int slave; - unsigned char ibuf[ENC_BUF_SIZE]; - unsigned char obuf[ENC_BUF_SIZE]; - int more; /* more data: do not read fd until ibuf has been drained */ - int pos; - int esc; + struct slip_proto slip; }; extern struct net_user_info slirp_user_info; -extern int set_umn_addr(int fd, char *addr, char *ptp_addr); extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri); -extern int slirp_user_write(int fd, void *buf, int len, struct slirp_data *pri); +extern int slirp_user_write(int fd, void *buf, int len, + struct slirp_data *pri); #endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/slirp_kern.c b/arch/um/drivers/slirp_kern.c index c9d6b52a831d..9864d27afdbe 100644 --- a/arch/um/drivers/slirp_kern.c +++ b/arch/um/drivers/slirp_kern.c @@ -25,10 +25,7 @@ void slirp_init(struct net_device *dev, void *data) { .argw = init->argw, .pid = -1, .slave = -1, - .ibuf = { '\0' }, - .obuf = { '\0' }, - .pos = 0, - .esc = 0, + .slip = SLIP_PROTO_INIT, .dev = dev }); dev->init = NULL; diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c index c322515c71cc..8d91f663d82c 100644 --- a/arch/um/drivers/slirp_user.c +++ b/arch/um/drivers/slirp_user.c @@ -12,7 +12,7 @@ #include "user.h" #include "net_user.h" #include "slirp.h" -#include "slip_proto.h" +#include "slip_common.h" #include "helper.h" #include "os.h" @@ -48,47 +48,32 @@ static int slirp_tramp(char **argv, int fd) return(pid); } -/* XXX This is just a trivial wrapper around os_pipe */ -static int slirp_datachan(int *mfd, int *sfd) -{ - int fds[2], err; - - err = os_pipe(fds, 1, 1); - if(err < 0){ - printk("slirp_datachan: Failed to open pipe, err = %d\n", -err); - return(err); - } - - *mfd = fds[0]; - *sfd = fds[1]; - return(0); -} - static int slirp_open(void *data) { struct slirp_data *pri = data; - int sfd, mfd, pid, err; + int fds[2], pid, err; - err = slirp_datachan(&mfd, &sfd); + err = os_pipe(fds, 1, 1); if(err) return(err); - pid = slirp_tramp(pri->argw.argv, sfd); - - if(pid < 0){ - printk("slirp_tramp failed - errno = %d\n", -pid); - os_close_file(sfd); - os_close_file(mfd); - return(pid); + err = slirp_tramp(pri->argw.argv, fds[1]); + if(err < 0){ + printk("slirp_tramp failed - errno = %d\n", -err); + goto out; } - - pri->slave = sfd; - pri->pos = 0; - pri->esc = 0; - - pri->pid = pid; - - return(mfd); + pid = err; + + pri->slave = fds[1]; + pri->slip.pos = 0; + pri->slip.esc = 0; + pri->pid = err; + + return(fds[0]); +out: + os_close_file(fds[0]); + os_close_file(fds[1]); + return err; } static void slirp_close(int fd, void *data) @@ -129,48 +114,12 @@ static void slirp_close(int fd, void *data) int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri) { - int i, n, size, start; - - if(pri->more>0) { - i = 0; - while(i < pri->more) { - size = slip_unesc(pri->ibuf[i++], - pri->ibuf,&pri->pos,&pri->esc); - if(size){ - memcpy(buf, pri->ibuf, size); - memmove(pri->ibuf, &pri->ibuf[i], pri->more-i); - pri->more=pri->more-i; - return(size); - } - } - pri->more=0; - } - - n = net_read(fd, &pri->ibuf[pri->pos], sizeof(pri->ibuf) - pri->pos); - if(n <= 0) return(n); - - start = pri->pos; - for(i = 0; i < n; i++){ - size = slip_unesc(pri->ibuf[start + i], - pri->ibuf,&pri->pos,&pri->esc); - if(size){ - memcpy(buf, pri->ibuf, size); - memmove(pri->ibuf, &pri->ibuf[start+i+1], n-(i+1)); - pri->more=n-(i+1); - return(size); - } - } - return(0); + return slip_proto_read(fd, buf, len, &pri->slip); } int slirp_user_write(int fd, void *buf, int len, struct slirp_data *pri) { - int actual, n; - - actual = slip_esc(buf, pri->obuf, len); - n = net_write(fd, pri->obuf, actual); - if(n < 0) return(n); - else return(len); + return slip_proto_write(fd, buf, len, &pri->slip); } static int slirp_set_mtu(int mtu, void *data) @@ -188,14 +137,3 @@ struct net_user_info slirp_user_info = { .delete_address = NULL, .max_packet = BUF_SIZE }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ -- cgit v1.2.3 From 92c6dc59b7c1ca514021502c7eef53b9f2c738fd Mon Sep 17 00:00:00 2001 From: Thomas Hood Date: Mon, 13 Jun 2005 22:58:04 -0700 Subject: [PATCH] apm.c: ignore_normal_resume is set a bit too late This patch causes the ignore_normal_resume flag to be set slightly earlier, before there is a chance that the apm driver will receive the normal resume event from the BIOS. (Addresses Debian bug #310865) Signed-off-by: Thomas Hood Acked-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/apm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index 45641a872550..0ff65abcd56c 100644 --- a/arch/i386/kernel/apm.c +++ b/arch/i386/kernel/apm.c @@ -1222,6 +1222,7 @@ static int suspend(int vetoable) save_processor_state(); err = set_system_power_state(APM_STATE_SUSPEND); + ignore_normal_resume = 1; restore_processor_state(); local_irq_disable(); @@ -1229,7 +1230,6 @@ static int suspend(int vetoable) spin_lock(&i8253_lock); reinit_timer(); set_time(); - ignore_normal_resume = 1; spin_unlock(&i8253_lock); write_sequnlock(&xtime_lock); -- cgit v1.2.3 From 4845f3333765b732aa2d7ea6d72fd03cfec4fbf3 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Tue, 14 Jun 2005 22:19:24 +1000 Subject: [PATCH] ppc64: update example configs Here is a patch to update the example configs in arch/ppc64/configs. Signed-off-by: Paul Mackerras Signed-off-by: Linus Torvalds --- arch/ppc64/configs/g5_defconfig | 76 +++++++++++++++----------- arch/ppc64/configs/iSeries_defconfig | 62 ++++++++++++--------- arch/ppc64/configs/maple_defconfig | 70 ++++++++++++++++-------- arch/ppc64/configs/pSeries_defconfig | 102 ++++++++++++++++++++++------------- 4 files changed, 196 insertions(+), 114 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/configs/g5_defconfig b/arch/ppc64/configs/g5_defconfig index 0f90df0b3f9c..1eb33398648e 100644 --- a/arch/ppc64/configs/g5_defconfig +++ b/arch/ppc64/configs/g5_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.11 -# Thu Mar 10 16:47:04 2005 +# Linux kernel version: 2.6.12-rc6 +# Tue Jun 14 16:59:20 2005 # CONFIG_64BIT=y CONFIG_MMU=y @@ -11,7 +11,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_HAVE_DEC_LOCK=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y -CONFIG_FRAME_POINTER=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_FORCE_MAX_ZONEORDER=13 # @@ -20,6 +20,7 @@ CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -31,19 +32,20 @@ CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set -CONFIG_LOG_BUF_SHIFT=17 CONFIG_HOTPLUG=y CONFIG_KOBJECT_UEVENT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +# CONFIG_CPUSETS is not set # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 @@ -87,6 +89,8 @@ CONFIG_NR_CPUS=2 # CONFIG_SCHED_SMT is not set # CONFIG_PREEMPT is not set CONFIG_GENERIC_HARDIRQS=y +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y # # General setup @@ -97,6 +101,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_PCI_LEGACY_PROC=y CONFIG_PCI_NAMES=y +# CONFIG_PCI_DEBUG is not set # CONFIG_HOTPLUG_CPU is not set # @@ -104,10 +109,6 @@ CONFIG_PCI_NAMES=y # # CONFIG_PCCARD is not set -# -# PC-card bridges -# - # # PCI Hotplug Support # @@ -293,7 +294,6 @@ CONFIG_SCSI_SATA_SVW=y # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set -# CONFIG_SCSI_EATA_PIO is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_IPS is not set @@ -301,7 +301,6 @@ CONFIG_SCSI_SATA_SVW=y # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set -# CONFIG_SCSI_QLOGIC_ISP is not set # CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set CONFIG_SCSI_QLA2XXX=y @@ -310,6 +309,7 @@ CONFIG_SCSI_QLA2XXX=y # CONFIG_SCSI_QLA2300 is not set # CONFIG_SCSI_QLA2322 is not set # CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_LPFC is not set # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set @@ -332,6 +332,7 @@ CONFIG_DM_CRYPT=m CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m +# CONFIG_DM_MULTIPATH is not set # # Fusion MPT device support @@ -394,7 +395,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y CONFIG_NET_KEY=m CONFIG_INET=y @@ -564,6 +564,8 @@ CONFIG_E1000=y # CONFIG_R8169 is not set # CONFIG_SK98LIN is not set CONFIG_TIGON3=m +# CONFIG_BNX2 is not set +# CONFIG_MV643XX_ETH is not set # # Ethernet (10000 Mbit) @@ -630,18 +632,6 @@ CONFIG_INPUT_JOYDEV=m CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_EVBUG is not set -# -# Input I/O drivers -# -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -CONFIG_SERIO=y -# CONFIG_SERIO_I8042 is not set -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_CT82C710 is not set -# CONFIG_SERIO_PCIPS2 is not set -# CONFIG_SERIO_RAW is not set - # # Input Device Drivers # @@ -659,6 +649,16 @@ CONFIG_INPUT_MOUSE=y # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set +# +# Hardware I/O ports +# +CONFIG_SERIO=y +# CONFIG_SERIO_I8042 is not set +# CONFIG_SERIO_SERPORT is not set +# CONFIG_SERIO_PCIPS2 is not set +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + # # Character devices # @@ -676,6 +676,7 @@ CONFIG_HW_CONSOLE=y # Non-8250 serial port support # # CONFIG_SERIAL_PMACZILOG is not set +# CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -698,9 +699,12 @@ CONFIG_LEGACY_PTY_COUNT=256 # # Ftape, the floppy tape device driver # +CONFIG_AGP=m +CONFIG_AGP_UNINORTH=m # CONFIG_DRM is not set CONFIG_RAW_DRIVER=y CONFIG_MAX_RAW_DEVS=256 +# CONFIG_HANGCHECK_TIMER is not set # # TPM devices @@ -730,12 +734,11 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_AMD8111 is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_ISA is not set CONFIG_I2C_KEYWEST=y -# CONFIG_I2C_MPC is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set # CONFIG_SCx200_ACB is not set @@ -772,6 +775,7 @@ CONFIG_I2C_KEYWEST=y # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47B397 is not set @@ -785,6 +789,7 @@ CONFIG_I2C_KEYWEST=y # # Other I2C Chip support # +# CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set @@ -817,6 +822,11 @@ CONFIG_I2C_KEYWEST=y # Graphics support # CONFIG_FB=y +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +CONFIG_FB_SOFT_CURSOR=y +CONFIG_FB_MACMODES=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y # CONFIG_FB_CIRRUS is not set @@ -830,6 +840,7 @@ CONFIG_FB_OF=y # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_VGA16 is not set +# CONFIG_FB_NVIDIA is not set CONFIG_FB_RIVA=y # CONFIG_FB_RIVA_I2C is not set # CONFIG_FB_RIVA_DEBUG is not set @@ -847,6 +858,7 @@ CONFIG_FB_RADEON_I2C=y # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_TRIDENT is not set +# CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set # @@ -880,6 +892,8 @@ CONFIG_LCD_DEVICE=y # # USB support # +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set @@ -890,8 +904,6 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set -CONFIG_USB_ARCH_HAS_HCD=y -CONFIG_USB_ARCH_HAS_OHCI=y # # USB Host Controller Drivers @@ -917,7 +929,6 @@ CONFIG_USB_PRINTER=y # CONFIG_USB_STORAGE=y # CONFIG_USB_STORAGE_DEBUG is not set -CONFIG_USB_STORAGE_RW_DETECT=y CONFIG_USB_STORAGE_DATAFAB=y CONFIG_USB_STORAGE_FREECOM=y CONFIG_USB_STORAGE_ISD200=y @@ -1004,8 +1015,10 @@ CONFIG_USB_MON=y # CONFIG_USB_SERIAL=m CONFIG_USB_SERIAL_GENERIC=y +# CONFIG_USB_SERIAL_AIRPRIME is not set CONFIG_USB_SERIAL_BELKIN=m CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m +# CONFIG_USB_SERIAL_CP2101 is not set CONFIG_USB_SERIAL_CYPRESS_M8=m CONFIG_USB_SERIAL_EMPEG=m CONFIG_USB_SERIAL_FTDI_SIO=m @@ -1034,6 +1047,7 @@ CONFIG_USB_SERIAL_KLSI=m CONFIG_USB_SERIAL_KOBIL_SCT=m CONFIG_USB_SERIAL_MCT_U232=m CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set CONFIG_USB_SERIAL_SAFE=m CONFIG_USB_SERIAL_SAFE_PADDED=y CONFIG_USB_SERIAL_TI=m @@ -1270,11 +1284,13 @@ CONFIG_OPROFILE=y # # Kernel hacking # +# CONFIG_PRINTK_TIME is not set CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y -# CONFIG_PRINTK_TIME is not set +CONFIG_LOG_BUF_SHIFT=17 # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set diff --git a/arch/ppc64/configs/iSeries_defconfig b/arch/ppc64/configs/iSeries_defconfig index a39e9d2e25da..f6a2b99afd63 100644 --- a/arch/ppc64/configs/iSeries_defconfig +++ b/arch/ppc64/configs/iSeries_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.11-rc3-bk6 -# Wed Feb 9 23:34:52 2005 +# Linux kernel version: 2.6.12-rc6 +# Tue Jun 14 17:01:28 2005 # CONFIG_64BIT=y CONFIG_MMU=y @@ -11,7 +11,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_HAVE_DEC_LOCK=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y -CONFIG_FRAME_POINTER=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_FORCE_MAX_ZONEORDER=13 # @@ -20,6 +20,7 @@ CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -30,24 +31,29 @@ CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y -CONFIG_LOG_BUF_SHIFT=17 +CONFIG_AUDIT=y +CONFIG_AUDITSYSCALL=y CONFIG_HOTPLUG=y CONFIG_KOBJECT_UEVENT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +# CONFIG_CPUSETS is not set # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 # # Loadable module support @@ -79,6 +85,8 @@ CONFIG_NR_CPUS=32 CONFIG_GENERIC_HARDIRQS=y CONFIG_MSCHUNKS=y CONFIG_LPARCFG=y +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y # # General setup @@ -89,16 +97,13 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_PCI_LEGACY_PROC=y CONFIG_PCI_NAMES=y +# CONFIG_PCI_DEBUG is not set # # PCCARD (PCMCIA/CardBus) support # # CONFIG_PCCARD is not set -# -# PC-card bridges -# - # # PCI Hotplug Support # @@ -210,7 +215,6 @@ CONFIG_SCSI_FC_ATTRS=y # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set -# CONFIG_SCSI_EATA_PIO is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_IPS is not set @@ -219,7 +223,6 @@ CONFIG_SCSI_IBMVSCSI=m # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set -# CONFIG_SCSI_QLOGIC_ISP is not set # CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set CONFIG_SCSI_QLA2XXX=y @@ -228,6 +231,7 @@ CONFIG_SCSI_QLA2XXX=y # CONFIG_SCSI_QLA2300 is not set # CONFIG_SCSI_QLA2322 is not set # CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_LPFC is not set # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set @@ -250,6 +254,7 @@ CONFIG_DM_CRYPT=m CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m +# CONFIG_DM_MULTIPATH is not set # # Fusion MPT device support @@ -280,7 +285,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y CONFIG_NET_KEY=m CONFIG_INET=y @@ -445,7 +449,6 @@ CONFIG_PCNET32=y # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set CONFIG_E100=y -# CONFIG_E100_NAPI is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set @@ -471,6 +474,7 @@ CONFIG_E1000=m # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set # # Ethernet (10000 Mbit) @@ -538,14 +542,6 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set -# -# Input I/O drivers -# -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -# CONFIG_SERIO is not set -# CONFIG_SERIO_I8042 is not set - # # Input Device Drivers # @@ -555,6 +551,12 @@ CONFIG_SOUND_GAMEPORT=y # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + # # Character devices # @@ -570,6 +572,7 @@ CONFIG_SOUND_GAMEPORT=y # CONFIG_SERIAL_CORE=m CONFIG_SERIAL_ICOM=m +# CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -592,9 +595,16 @@ CONFIG_LEGACY_PTY_COUNT=256 # # Ftape, the floppy tape device driver # +# CONFIG_AGP is not set # CONFIG_DRM is not set CONFIG_RAW_DRIVER=y CONFIG_MAX_RAW_DEVS=256 +# CONFIG_HANGCHECK_TIMER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set # # I2C support @@ -633,13 +643,9 @@ CONFIG_MAX_RAW_DEVS=256 # # USB support # -# CONFIG_USB is not set CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information -# +# CONFIG_USB is not set # # USB Gadget Support @@ -848,10 +854,13 @@ CONFIG_OPROFILE=y # # Kernel hacking # +# CONFIG_PRINTK_TIME is not set CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y +CONFIG_LOG_BUF_SHIFT=17 # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set @@ -881,6 +890,7 @@ CONFIG_CRYPTO_SHA1=m CONFIG_CRYPTO_SHA256=m CONFIG_CRYPTO_SHA512=m CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_TGR192=m CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_TWOFISH=m diff --git a/arch/ppc64/configs/maple_defconfig b/arch/ppc64/configs/maple_defconfig index cf527501915c..8051b0f47b6f 100644 --- a/arch/ppc64/configs/maple_defconfig +++ b/arch/ppc64/configs/maple_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.11-rc3-bk6 -# Wed Feb 9 23:34:53 2005 +# Linux kernel version: 2.6.12-rc6 +# Tue Jun 14 17:12:48 2005 # CONFIG_64BIT=y CONFIG_MMU=y @@ -11,7 +11,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_HAVE_DEC_LOCK=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y -CONFIG_FRAME_POINTER=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_FORCE_MAX_ZONEORDER=13 # @@ -20,6 +20,7 @@ CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -30,24 +31,28 @@ CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y -CONFIG_LOG_BUF_SHIFT=17 +# CONFIG_AUDIT is not set # CONFIG_HOTPLUG is not set CONFIG_KOBJECT_UEVENT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +# CONFIG_CPUSETS is not set # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 # # Loadable module support @@ -84,6 +89,8 @@ CONFIG_NR_CPUS=2 # CONFIG_SCHED_SMT is not set # CONFIG_PREEMPT is not set CONFIG_GENERIC_HARDIRQS=y +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y # # General setup @@ -94,16 +101,13 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_PCI_LEGACY_PROC=y CONFIG_PCI_NAMES=y +# CONFIG_PCI_DEBUG is not set # # PCCARD (PCMCIA/CardBus) support # # CONFIG_PCCARD is not set -# -# PC-card bridges -# - # # PCI Hotplug Support # @@ -261,7 +265,6 @@ CONFIG_NET=y # CONFIG_PACKET=y CONFIG_PACKET_MMAP=y -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y @@ -376,6 +379,8 @@ CONFIG_E1000=y # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set +# CONFIG_MV643XX_ETH is not set # # Ethernet (10000 Mbit) @@ -431,14 +436,6 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200 # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set -# -# Input I/O drivers -# -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -# CONFIG_SERIO is not set -# CONFIG_SERIO_I8042 is not set - # # Input Device Drivers # @@ -448,6 +445,12 @@ CONFIG_SOUND_GAMEPORT=y # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + # # Character devices # @@ -469,7 +472,7 @@ CONFIG_SERIAL_8250_NR_UARTS=4 # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_SERIAL_PMACZILOG is not set +# CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -492,8 +495,15 @@ CONFIG_LEGACY_PTY_COUNT=256 # # Ftape, the floppy tape device driver # +# CONFIG_AGP is not set # CONFIG_DRM is not set # CONFIG_RAW_DRIVER is not set +# CONFIG_HANGCHECK_TIMER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set # # I2C support @@ -518,8 +528,8 @@ CONFIG_I2C_ALGOBIT=y CONFIG_I2C_AMD8111=y # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_ISA is not set -# CONFIG_I2C_MPC is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT_LIGHT is not set # CONFIG_I2C_PROSAVAGE is not set @@ -545,7 +555,9 @@ CONFIG_I2C_AMD8111=y # CONFIG_SENSORS_ASB100 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set # CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM75 is not set @@ -556,9 +568,11 @@ CONFIG_I2C_AMD8111=y # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_W83781D is not set @@ -568,6 +582,7 @@ CONFIG_I2C_AMD8111=y # # Other I2C Chip support # +# CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set @@ -615,6 +630,8 @@ CONFIG_DUMMY_CONSOLE=y # # USB support # +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set @@ -625,8 +642,6 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set -CONFIG_USB_ARCH_HAS_HCD=y -CONFIG_USB_ARCH_HAS_OHCI=y # # USB Host Controller Drivers @@ -635,6 +650,8 @@ CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_SPLIT_ISO=y CONFIG_USB_EHCI_ROOT_HUB_TT=y CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=y # CONFIG_USB_SL811_HCD is not set @@ -688,6 +705,7 @@ CONFIG_USB_HIDINPUT=y CONFIG_USB_PEGASUS=y # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y # # USB port drivers @@ -699,8 +717,10 @@ CONFIG_USB_PEGASUS=y CONFIG_USB_SERIAL=y # CONFIG_USB_SERIAL_CONSOLE is not set CONFIG_USB_SERIAL_GENERIC=y +# CONFIG_USB_SERIAL_AIRPRIME is not set # CONFIG_USB_SERIAL_BELKIN is not set # CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set +# CONFIG_USB_SERIAL_CP2101 is not set CONFIG_USB_SERIAL_CYPRESS_M8=m # CONFIG_USB_SERIAL_EMPEG is not set # CONFIG_USB_SERIAL_FTDI_SIO is not set @@ -729,6 +749,7 @@ CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y # CONFIG_USB_SERIAL_KOBIL_SCT is not set # CONFIG_USB_SERIAL_MCT_U232 is not set # CONFIG_USB_SERIAL_PL2303 is not set +# CONFIG_USB_SERIAL_HP4X is not set # CONFIG_USB_SERIAL_SAFE is not set CONFIG_USB_SERIAL_TI=m # CONFIG_USB_SERIAL_CYBERJACK is not set @@ -750,6 +771,7 @@ CONFIG_USB_EZUSB=y # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_TEST is not set # @@ -936,10 +958,13 @@ CONFIG_NLS_UTF8=y # # Kernel hacking # +# CONFIG_PRINTK_TIME is not set CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y +CONFIG_LOG_BUF_SHIFT=17 # CONFIG_SCHEDSTATS is not set CONFIG_DEBUG_SLAB=y +# CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_SPINLOCK_SLEEP=y # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set @@ -971,6 +996,7 @@ CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_SHA256 is not set # CONFIG_CRYPTO_SHA512 is not set # CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_BLOWFISH is not set # CONFIG_CRYPTO_TWOFISH is not set diff --git a/arch/ppc64/configs/pSeries_defconfig b/arch/ppc64/configs/pSeries_defconfig index 4fecf237d5c9..3eb5ef25d3a3 100644 --- a/arch/ppc64/configs/pSeries_defconfig +++ b/arch/ppc64/configs/pSeries_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.11-rc3-bk6 -# Wed Feb 9 23:34:54 2005 +# Linux kernel version: 2.6.12-rc6 +# Tue Jun 14 17:13:47 2005 # CONFIG_64BIT=y CONFIG_MMU=y @@ -11,7 +11,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_HAVE_DEC_LOCK=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y -CONFIG_FRAME_POINTER=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_FORCE_MAX_ZONEORDER=13 # @@ -20,6 +20,7 @@ CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -30,24 +31,29 @@ CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y -CONFIG_LOG_BUF_SHIFT=17 +CONFIG_AUDIT=y +CONFIG_AUDITSYSCALL=y CONFIG_HOTPLUG=y CONFIG_KOBJECT_UEVENT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_CPUSETS=y # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 # # Loadable module support @@ -89,9 +95,12 @@ CONFIG_SCHED_SMT=y CONFIG_EEH=y CONFIG_GENERIC_HARDIRQS=y CONFIG_PPC_RTAS=y +CONFIG_RTAS_PROC=y CONFIG_RTAS_FLASH=m CONFIG_SCANLOG=m CONFIG_LPARCFG=y +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y # # General setup @@ -102,6 +111,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_PCI_LEGACY_PROC=y CONFIG_PCI_NAMES=y +# CONFIG_PCI_DEBUG is not set CONFIG_HOTPLUG_CPU=y # @@ -109,10 +119,6 @@ CONFIG_HOTPLUG_CPU=y # # CONFIG_PCCARD is not set -# -# PC-card bridges -# - # # PCI Hotplug Support # @@ -147,11 +153,10 @@ CONFIG_FW_LOADER=y # CONFIG_PARPORT=m CONFIG_PARPORT_PC=m -CONFIG_PARPORT_PC_CML1=m # CONFIG_PARPORT_SERIAL is not set # CONFIG_PARPORT_PC_FIFO is not set # CONFIG_PARPORT_PC_SUPERIO is not set -# CONFIG_PARPORT_OTHER is not set +# CONFIG_PARPORT_GSC is not set # CONFIG_PARPORT_1284 is not set # @@ -293,7 +298,6 @@ CONFIG_SCSI_ISCSI_ATTRS=m # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set -# CONFIG_SCSI_EATA_PIO is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_IPS is not set @@ -310,7 +314,6 @@ CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64 CONFIG_SCSI_IPR=y CONFIG_SCSI_IPR_TRACE=y CONFIG_SCSI_IPR_DUMP=y -# CONFIG_SCSI_QLOGIC_ISP is not set # CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set CONFIG_SCSI_QLA2XXX=y @@ -319,6 +322,7 @@ CONFIG_SCSI_QLA22XX=m CONFIG_SCSI_QLA2300=m CONFIG_SCSI_QLA2322=m CONFIG_SCSI_QLA6312=m +CONFIG_SCSI_LPFC=m # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set @@ -341,6 +345,8 @@ CONFIG_DM_CRYPT=m CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m +CONFIG_DM_MULTIPATH=m +CONFIG_DM_MULTIPATH_EMC=m # # Fusion MPT device support @@ -371,7 +377,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y CONFIG_NET_KEY=m CONFIG_INET=y @@ -539,7 +544,6 @@ CONFIG_PCNET32=y # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set CONFIG_E100=y -# CONFIG_E100_NAPI is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set @@ -565,6 +569,8 @@ CONFIG_E1000=y # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y +# CONFIG_BNX2 is not set +# CONFIG_MV643XX_ETH is not set # # Ethernet (10000 Mbit) @@ -635,20 +641,6 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set -# -# Input I/O drivers -# -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -CONFIG_SERIO=y -CONFIG_SERIO_I8042=y -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_CT82C710 is not set -# CONFIG_SERIO_PARKBD is not set -# CONFIG_SERIO_PCIPS2 is not set -CONFIG_SERIO_LIBPS2=y -# CONFIG_SERIO_RAW is not set - # # Input Device Drivers # @@ -668,6 +660,18 @@ CONFIG_INPUT_MISC=y CONFIG_INPUT_PCSPKR=m # CONFIG_INPUT_UINPUT is not set +# +# Hardware I/O ports +# +CONFIG_SERIO=y +CONFIG_SERIO_I8042=y +# CONFIG_SERIO_SERPORT is not set +# CONFIG_SERIO_PARKBD is not set +# CONFIG_SERIO_PCIPS2 is not set +CONFIG_SERIO_LIBPS2=y +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + # # Character devices # @@ -689,8 +693,8 @@ CONFIG_SERIAL_8250_NR_UARTS=4 # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_SERIAL_PMACZILOG is not set CONFIG_SERIAL_ICOM=m +# CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -718,9 +722,16 @@ CONFIG_HVCS=m # # Ftape, the floppy tape device driver # +# CONFIG_AGP is not set # CONFIG_DRM is not set CONFIG_RAW_DRIVER=y CONFIG_MAX_RAW_DEVS=1024 +# CONFIG_HANGCHECK_TIMER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set # # I2C support @@ -745,8 +756,8 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_AMD8111 is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_ISA is not set -# CONFIG_I2C_MPC is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT is not set # CONFIG_I2C_PARPORT_LIGHT is not set @@ -773,7 +784,9 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_SENSORS_ASB100 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set # CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM75 is not set @@ -784,9 +797,11 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_W83781D is not set @@ -796,6 +811,7 @@ CONFIG_I2C_ALGOBIT=y # # Other I2C Chip support # +# CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set @@ -828,8 +844,13 @@ CONFIG_I2C_ALGOBIT=y # Graphics support # CONFIG_FB=y +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +CONFIG_FB_SOFT_CURSOR=y +CONFIG_FB_MACMODES=y CONFIG_FB_MODE_HELPERS=y -# CONFIG_FB_TILEBLITTING is not set +CONFIG_FB_TILEBLITTING=y # CONFIG_FB_CIRRUS is not set # CONFIG_FB_PM2 is not set # CONFIG_FB_CYBER2000 is not set @@ -838,6 +859,7 @@ CONFIG_FB_OF=y # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_VGA16 is not set +# CONFIG_FB_NVIDIA is not set # CONFIG_FB_RIVA is not set CONFIG_FB_MATROX=y CONFIG_FB_MATROX_MILLENIUM=y @@ -858,6 +880,7 @@ CONFIG_FB_RADEON_I2C=y # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_TRIDENT is not set +# CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set # @@ -891,6 +914,8 @@ CONFIG_LCD_DEVICE=y # # USB support # +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set @@ -901,8 +926,6 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set -CONFIG_USB_ARCH_HAS_HCD=y -CONFIG_USB_ARCH_HAS_OHCI=y # # USB Host Controller Drivers @@ -911,6 +934,8 @@ CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y # CONFIG_USB_UHCI_HCD is not set # CONFIG_USB_SL811_HCD is not set @@ -926,12 +951,11 @@ CONFIG_USB_OHCI_HCD=y # CONFIG_USB_STORAGE=y # CONFIG_USB_STORAGE_DEBUG is not set -# CONFIG_USB_STORAGE_RW_DETECT is not set # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set # CONFIG_USB_STORAGE_DPCM is not set -# CONFIG_USB_STORAGE_HP8200e is not set +# CONFIG_USB_STORAGE_USBAT is not set # CONFIG_USB_STORAGE_SDDR09 is not set # CONFIG_USB_STORAGE_SDDR55 is not set # CONFIG_USB_STORAGE_JUMPSHOT is not set @@ -975,6 +999,7 @@ CONFIG_USB_HIDDEV=y # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y # # USB port drivers @@ -1000,6 +1025,7 @@ CONFIG_USB_HIDDEV=y # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_TEST is not set # @@ -1208,10 +1234,13 @@ CONFIG_OPROFILE=y # # Kernel hacking # +# CONFIG_PRINTK_TIME is not set CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y +CONFIG_LOG_BUF_SHIFT=17 # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set @@ -1243,6 +1272,7 @@ CONFIG_CRYPTO_SHA1=m CONFIG_CRYPTO_SHA256=m CONFIG_CRYPTO_SHA512=m CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_TGR192=m CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_TWOFISH=m -- cgit v1.2.3 From 1016888fb69662936b32ab767c7419a3be9a69d3 Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Tue, 14 Jun 2005 13:52:19 -0700 Subject: [PATCH] update ppc64 defconfig enable cpusets enable new lpfc and jsm drivers enable new dm-multipath leave new agp disabled disable rivafb, it does not handle the cards in G5 models (FX5200 as example) the new nvidiafb doesnt work on bigendian, yet Signed-off-by: Olaf Hering Acked-by: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/defconfig | 104 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 67 insertions(+), 37 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/defconfig b/arch/ppc64/defconfig index 537b1cc82eab..2f31bf3046f9 100644 --- a/arch/ppc64/defconfig +++ b/arch/ppc64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.11-rc3-bk6 -# Wed Feb 9 23:34:51 2005 +# Linux kernel version: 2.6.12-rc5-git9 +# Sun Jun 5 09:26:47 2005 # CONFIG_64BIT=y CONFIG_MMU=y @@ -11,7 +11,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_HAVE_DEC_LOCK=y CONFIG_EARLY_PRINTK=y CONFIG_COMPAT=y -CONFIG_FRAME_POINTER=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_FORCE_MAX_ZONEORDER=13 # @@ -20,6 +20,7 @@ CONFIG_FORCE_MAX_ZONEORDER=13 CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup @@ -30,24 +31,28 @@ CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y -CONFIG_LOG_BUF_SHIFT=17 +# CONFIG_AUDIT is not set CONFIG_HOTPLUG=y CONFIG_KOBJECT_UEVENT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_CPUSETS=y # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 # # Loadable module support @@ -91,9 +96,12 @@ CONFIG_DISCONTIGMEM=y CONFIG_EEH=y CONFIG_GENERIC_HARDIRQS=y CONFIG_PPC_RTAS=y +CONFIG_RTAS_PROC=y CONFIG_RTAS_FLASH=m CONFIG_SCANLOG=m CONFIG_LPARCFG=y +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y # # General setup @@ -104,6 +112,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m # CONFIG_PCI_LEGACY_PROC is not set # CONFIG_PCI_NAMES is not set +# CONFIG_PCI_DEBUG is not set CONFIG_HOTPLUG_CPU=y # @@ -111,10 +120,6 @@ CONFIG_HOTPLUG_CPU=y # # CONFIG_PCCARD is not set -# -# PC-card bridges -# - # # PCI Hotplug Support # @@ -149,11 +154,10 @@ CONFIG_FW_LOADER=y # CONFIG_PARPORT=m CONFIG_PARPORT_PC=m -CONFIG_PARPORT_PC_CML1=m # CONFIG_PARPORT_SERIAL is not set # CONFIG_PARPORT_PC_FIFO is not set # CONFIG_PARPORT_PC_SUPERIO is not set -# CONFIG_PARPORT_OTHER is not set +# CONFIG_PARPORT_GSC is not set # CONFIG_PARPORT_1284 is not set # @@ -301,6 +305,7 @@ CONFIG_SCSI_SATA_SVW=y # CONFIG_SCSI_ATA_PIIX is not set # CONFIG_SCSI_SATA_NV is not set # CONFIG_SCSI_SATA_PROMISE is not set +# CONFIG_SCSI_SATA_QSTOR is not set # CONFIG_SCSI_SATA_SX4 is not set # CONFIG_SCSI_SATA_SIL is not set # CONFIG_SCSI_SATA_SIS is not set @@ -310,7 +315,6 @@ CONFIG_SCSI_SATA_SVW=y # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set -# CONFIG_SCSI_EATA_PIO is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_IPS is not set @@ -327,7 +331,6 @@ CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64 CONFIG_SCSI_IPR=y CONFIG_SCSI_IPR_TRACE=y CONFIG_SCSI_IPR_DUMP=y -# CONFIG_SCSI_QLOGIC_ISP is not set # CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set CONFIG_SCSI_QLA2XXX=y @@ -336,6 +339,7 @@ CONFIG_SCSI_QLA22XX=m CONFIG_SCSI_QLA2300=m CONFIG_SCSI_QLA2322=m CONFIG_SCSI_QLA6312=m +CONFIG_SCSI_LPFC=m # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set CONFIG_SCSI_DEBUG=m @@ -358,6 +362,8 @@ CONFIG_DM_CRYPT=m CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m +CONFIG_DM_MULTIPATH=m +CONFIG_DM_MULTIPATH_EMC=m # # Fusion MPT device support @@ -405,6 +411,7 @@ CONFIG_IEEE1394_AMDTP=m # CONFIG_ADB=y CONFIG_ADB_PMU=y +CONFIG_PMAC_SMU=y # CONFIG_PMAC_PBOOK is not set # CONFIG_PMAC_BACKLIGHT is not set # CONFIG_INPUT_ADBHID is not set @@ -420,7 +427,6 @@ CONFIG_NET=y # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set -# CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y CONFIG_NET_KEY=m CONFIG_INET=y @@ -588,7 +594,6 @@ CONFIG_PCNET32=y # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set CONFIG_E100=y -# CONFIG_E100_NAPI is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set @@ -614,6 +619,8 @@ CONFIG_E1000=y # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y +# CONFIG_BNX2 is not set +# CONFIG_MV643XX_ETH is not set # # Ethernet (10000 Mbit) @@ -682,20 +689,6 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 CONFIG_INPUT_EVDEV=m # CONFIG_INPUT_EVBUG is not set -# -# Input I/O drivers -# -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -CONFIG_SERIO=y -CONFIG_SERIO_I8042=y -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_CT82C710 is not set -# CONFIG_SERIO_PARKBD is not set -# CONFIG_SERIO_PCIPS2 is not set -CONFIG_SERIO_LIBPS2=y -# CONFIG_SERIO_RAW is not set - # # Input Device Drivers # @@ -715,6 +708,18 @@ CONFIG_INPUT_MISC=y CONFIG_INPUT_PCSPKR=m # CONFIG_INPUT_UINPUT is not set +# +# Hardware I/O ports +# +CONFIG_SERIO=y +CONFIG_SERIO_I8042=y +# CONFIG_SERIO_SERPORT is not set +# CONFIG_SERIO_PARKBD is not set +# CONFIG_SERIO_PCIPS2 is not set +CONFIG_SERIO_LIBPS2=y +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + # # Character devices # @@ -738,6 +743,7 @@ CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_PMACZILOG is not set CONFIG_SERIAL_ICOM=m +CONFIG_SERIAL_JSM=m CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 @@ -766,9 +772,16 @@ CONFIG_HVCS=m # # Ftape, the floppy tape device driver # +# CONFIG_AGP is not set # CONFIG_DRM is not set CONFIG_RAW_DRIVER=y CONFIG_MAX_RAW_DEVS=256 +# CONFIG_HANGCHECK_TIMER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set # # I2C support @@ -793,9 +806,9 @@ CONFIG_I2C_ALGOBIT=y CONFIG_I2C_AMD8111=y # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_ISA is not set CONFIG_I2C_KEYWEST=y -# CONFIG_I2C_MPC is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT is not set # CONFIG_I2C_PARPORT_LIGHT is not set @@ -822,7 +835,9 @@ CONFIG_I2C_KEYWEST=y # CONFIG_SENSORS_ASB100 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set # CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM75 is not set @@ -833,9 +848,11 @@ CONFIG_I2C_KEYWEST=y # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_W83781D is not set @@ -845,6 +862,7 @@ CONFIG_I2C_KEYWEST=y # # Other I2C Chip support # +# CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set @@ -877,6 +895,11 @@ CONFIG_I2C_KEYWEST=y # Graphics support # CONFIG_FB=y +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +CONFIG_FB_SOFT_CURSOR=y +CONFIG_FB_MACMODES=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y # CONFIG_FB_CIRRUS is not set @@ -890,9 +913,8 @@ CONFIG_FB_OF=y # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_VGA16 is not set -CONFIG_FB_RIVA=y -CONFIG_FB_RIVA_I2C=y -# CONFIG_FB_RIVA_DEBUG is not set +# CONFIG_FB_NVIDIA is not set +# CONFIG_FB_RIVA is not set CONFIG_FB_MATROX=y CONFIG_FB_MATROX_MILLENIUM=y CONFIG_FB_MATROX_MYSTIQUE=y @@ -913,6 +935,7 @@ CONFIG_FB_RADEON_I2C=y # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_TRIDENT is not set +# CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set # @@ -946,6 +969,8 @@ CONFIG_LCD_DEVICE=y # # USB support # +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set @@ -956,8 +981,6 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set -CONFIG_USB_ARCH_HAS_HCD=y -CONFIG_USB_ARCH_HAS_OHCI=y # # USB Host Controller Drivers @@ -966,6 +989,8 @@ CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y # CONFIG_USB_UHCI_HCD is not set # CONFIG_USB_SL811_HCD is not set @@ -981,12 +1006,11 @@ CONFIG_USB_OHCI_HCD=y # CONFIG_USB_STORAGE=m # CONFIG_USB_STORAGE_DEBUG is not set -CONFIG_USB_STORAGE_RW_DETECT=y # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set # CONFIG_USB_STORAGE_DPCM is not set -# CONFIG_USB_STORAGE_HP8200e is not set +# CONFIG_USB_STORAGE_USBAT is not set # CONFIG_USB_STORAGE_SDDR09 is not set # CONFIG_USB_STORAGE_SDDR55 is not set # CONFIG_USB_STORAGE_JUMPSHOT is not set @@ -1030,6 +1054,7 @@ CONFIG_USB_HIDDEV=y CONFIG_USB_PEGASUS=y # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set +# CONFIG_USB_MON is not set # # USB port drivers @@ -1055,6 +1080,7 @@ CONFIG_USB_PEGASUS=y # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_TEST is not set # @@ -1276,10 +1302,13 @@ CONFIG_OPROFILE=y # # Kernel hacking # +# CONFIG_PRINTK_TIME is not set CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y +CONFIG_LOG_BUF_SHIFT=17 # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set @@ -1311,6 +1340,7 @@ CONFIG_CRYPTO_SHA1=m CONFIG_CRYPTO_SHA256=m CONFIG_CRYPTO_SHA512=m CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_TGR192=m CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_TWOFISH=m -- cgit v1.2.3 From 90ef713b6368dcfe7a74bcc0026b998b4c44d5bc Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 16 Jun 2005 18:01:11 +0100 Subject: [PATCH] ARM: 2712/1: Fix the RGB order for the Versatile CLCD Patch from Catalin Marinas The current red and blue colours on the Versatile CLCD are reversed when the 5:6:5 mode is used. The patch sets the proper bit in the SYS_CLCD register value. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-versatile/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 554e1bd30d6e..302c2a7b9b63 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -543,7 +543,7 @@ static void versatile_clcd_enable(struct clcd_fb *fb) val |= SYS_CLCD_MODE_5551; break; case 6: - val |= SYS_CLCD_MODE_565_BLSB; + val |= SYS_CLCD_MODE_565_RLSB; break; case 8: val |= SYS_CLCD_MODE_888; -- cgit v1.2.3 From fea7722fd7b45c6957caed84251d95269319fe16 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 16 Jun 2005 18:01:11 +0100 Subject: [PATCH] ARM: 2713/1: Fix the GPIO base for Integrator/CP Patch from Catalin Marinas The GPIO base for Integrator/CP is different from the Integrator/AP. This patch sets the correct value for INTEGRATOR_GPIO_BASE. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-integrator/integrator_cp.c | 1 - include/asm-arm/arch-integrator/platform.h | 4 ++++ 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 3b948e8c2751..e0a01eef0993 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -83,7 +83,6 @@ static struct map_desc intcp_io_desc[] __initdata = { { IO_ADDRESS(INTEGRATOR_UART1_BASE), INTEGRATOR_UART1_BASE, SZ_4K, MT_DEVICE }, { IO_ADDRESS(INTEGRATOR_DBG_BASE), INTEGRATOR_DBG_BASE, SZ_4K, MT_DEVICE }, { IO_ADDRESS(INTEGRATOR_GPIO_BASE), INTEGRATOR_GPIO_BASE, SZ_4K, MT_DEVICE }, - { 0xfc900000, 0xc9000000, SZ_4K, MT_DEVICE }, { 0xfca00000, 0xca000000, SZ_4K, MT_DEVICE }, { 0xfcb00000, 0xcb000000, SZ_4K, MT_DEVICE }, }; diff --git a/include/asm-arm/arch-integrator/platform.h b/include/asm-arm/arch-integrator/platform.h index bd364f5a99bc..96ad3d2a66d1 100644 --- a/include/asm-arm/arch-integrator/platform.h +++ b/include/asm-arm/arch-integrator/platform.h @@ -293,7 +293,11 @@ #define INTEGRATOR_DBG_SWITCH (INTEGRATOR_DBG_BASE + INTEGRATOR_DBG_SWITCH_OFFSET) +#if defined(CONFIG_ARCH_INTEGRATOR_AP) #define INTEGRATOR_GPIO_BASE 0x1B000000 /* GPIO */ +#elif defined(CONFIG_ARCH_INTEGRATOR_CP) +#define INTEGRATOR_GPIO_BASE 0xC9000000 /* GPIO */ +#endif /* ------------------------------------------------------------------------ * KMI keyboard/mouse definitions -- cgit v1.2.3 From 22f11c4e662ef0bdd87f09370a76c83ed738d5fd Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Thu, 16 Jun 2005 21:23:56 +0100 Subject: [PATCH] ARM: 2715/1: restore CPLD interrupts upon resume for Lubbock and Mainstone Patch from Nicolas Pitre Without this some devices fail to work again after a suspend event. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mach-pxa/lubbock.c | 30 ++++++++++++++++++++++++++++++ arch/arm/mach-pxa/mainstone.c | 31 ++++++++++++++++++++++++++++++- 2 files changed, 60 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index dd012d6e2f5c..f2c9e0d2b24b 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -106,6 +107,35 @@ static void __init lubbock_init_irq(void) set_irq_type(IRQ_GPIO(0), IRQT_FALLING); } +#ifdef CONFIG_PM + +static int lubbock_irq_resume(struct sys_device *dev) +{ + LUB_IRQ_MASK_EN = lubbock_irq_enabled; + return 0; +} + +static struct sysdev_class lubbock_irq_sysclass = { + set_kset_name("cpld_irq"), + .resume = lubbock_irq_resume, +}; + +static struct sys_device lubbock_irq_device = { + .cls = &lubbock_irq_sysclass, +}; + +static int __init lubbock_irq_device_init(void) +{ + int ret = sysdev_class_register(&lubbock_irq_sysclass); + if (ret == 0) + ret = sysdev_register(&lubbock_irq_device); + return ret; +} + +device_initcall(lubbock_irq_device_init); + +#endif + static int lubbock_udc_is_connected(void) { return (LUB_MISC_RD & (1 << 9)) == 0; diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 6823ae28ae6a..9896afca751f 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -15,6 +15,7 @@ #include #include +#include #include #include #include @@ -62,7 +63,6 @@ static struct irqchip mainstone_irq_chip = { .unmask = mainstone_unmask_irq, }; - static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) { @@ -100,6 +100,35 @@ static void __init mainstone_init_irq(void) set_irq_type(IRQ_GPIO(0), IRQT_FALLING); } +#ifdef CONFIG_PM + +static int mainstone_irq_resume(struct sys_device *dev) +{ + MST_INTMSKENA = mainstone_irq_enabled; + return 0; +} + +static struct sysdev_class mainstone_irq_sysclass = { + set_kset_name("cpld_irq"), + .resume = mainstone_irq_resume, +}; + +static struct sys_device mainstone_irq_device = { + .cls = &mainstone_irq_sysclass, +}; + +static int __init mainstone_irq_device_init(void) +{ + int ret = sysdev_class_register(&mainstone_irq_sysclass); + if (ret == 0) + ret = sysdev_register(&mainstone_irq_device); + return ret; +} + +device_initcall(mainstone_irq_device_init); + +#endif + static struct resource smc91x_resources[] = { [0] = { -- cgit v1.2.3 From e65f38ed0bb7af367ff919c573cf29643fc5f9e8 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 18 Jun 2005 09:33:31 +0100 Subject: [PATCH] ARM SMP: Add support for startup of secondary processors Create a temporary page table to startup secondary processors. This page table must have a 1:1 virtual/physical mapping for the kernel in addition to the standard mappings to ensure that the secondary CPU can enable its MMU safely. Signed-off-by: Russell King --- arch/arm/kernel/head.S | 44 ++++++++++++++++++++ arch/arm/kernel/smp.c | 107 +++++++++++++++++++++++++++++++++++++++++++++++++ include/asm-arm/smp.h | 14 +++++++ 3 files changed, 165 insertions(+) (limited to 'arch') diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 4733877296d4..bd4823c74645 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -2,6 +2,8 @@ * linux/arch/arm/kernel/head.S * * Copyright (C) 1994-2002 Russell King + * Copyright (c) 2003 ARM Limited + * All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -165,6 +167,48 @@ __mmap_switched: stmia r6, {r0, r4} @ Save control register values b start_kernel +#if defined(CONFIG_SMP) + .type secondary_startup, #function +ENTRY(secondary_startup) + /* + * Common entry point for secondary CPUs. + * + * Ensure that we're in SVC mode, and IRQs are disabled. Lookup + * the processor type - there is no need to check the machine type + * as it has already been validated by the primary processor. + */ + msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | MODE_SVC + bl __lookup_processor_type + movs r10, r5 @ invalid processor? + moveq r0, #'p' @ yes, error 'p' + beq __error + + /* + * Use the page tables supplied from __cpu_up. + */ + adr r4, __secondary_data + ldmia r4, {r5, r6, r13} @ address to jump to after + sub r4, r4, r5 @ mmu has been enabled + ldr r4, [r6, r4] @ get secondary_data.pgdir + adr lr, __enable_mmu @ return address + add pc, r10, #12 @ initialise processor + @ (return control reg) + + /* + * r6 = &secondary_data + */ +ENTRY(__secondary_switched) + ldr sp, [r6, #4] @ get secondary_data.stack + mov fp, #0 + b secondary_start_kernel + + .type __secondary_data, %object +__secondary_data: + .long . + .long secondary_data + .long __secondary_switched +#endif /* defined(CONFIG_SMP) */ + /* diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index ecc8c3332408..45ed036336e0 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -24,6 +24,9 @@ #include #include #include +#include +#include +#include #include #include #include @@ -36,6 +39,13 @@ cpumask_t cpu_present_mask; cpumask_t cpu_online_map; +/* + * as from 2.5, kernels no longer have an init_tasks structure + * so we need some other way of telling a new secondary core + * where to place its SVC stack + */ +struct secondary_data secondary_data; + /* * structures for inter-processor calls * - A collection of single bit ipi messages. @@ -71,6 +81,8 @@ static DEFINE_SPINLOCK(smp_call_function_lock); int __init __cpu_up(unsigned int cpu) { struct task_struct *idle; + pgd_t *pgd; + pmd_t *pmd; int ret; /* @@ -83,10 +95,55 @@ int __init __cpu_up(unsigned int cpu) return PTR_ERR(idle); } + /* + * Allocate initial page tables to allow the new CPU to + * enable the MMU safely. This essentially means a set + * of our "standard" page tables, with the addition of + * a 1:1 mapping for the physical address of the kernel. + */ + pgd = pgd_alloc(&init_mm); + pmd = pmd_offset(pgd, PHYS_OFFSET); + *pmd = __pmd((PHYS_OFFSET & PGDIR_MASK) | + PMD_TYPE_SECT | PMD_SECT_AP_WRITE); + + /* + * We need to tell the secondary core where to find + * its stack and the page tables. + */ + secondary_data.stack = (void *)idle->thread_info + THREAD_SIZE - 8; + secondary_data.pgdir = virt_to_phys(pgd); + wmb(); + /* * Now bring the CPU into our world. */ ret = boot_secondary(cpu, idle); + if (ret == 0) { + unsigned long timeout; + + /* + * CPU was successfully started, wait for it + * to come online or time out. + */ + timeout = jiffies + HZ; + while (time_before(jiffies, timeout)) { + if (cpu_online(cpu)) + break; + + udelay(10); + barrier(); + } + + if (!cpu_online(cpu)) + ret = -EIO; + } + + secondary_data.stack = 0; + secondary_data.pgdir = 0; + + *pmd_offset(pgd, PHYS_OFFSET) = __pmd(0); + pgd_free(pgd); + if (ret) { printk(KERN_CRIT "cpu_up: processor %d failed to boot\n", cpu); /* @@ -97,6 +154,56 @@ int __init __cpu_up(unsigned int cpu) return ret; } +/* + * This is the secondary CPU boot entry. We're using this CPUs + * idle thread stack, but a set of temporary page tables. + */ +asmlinkage void __init secondary_start_kernel(void) +{ + struct mm_struct *mm = &init_mm; + unsigned int cpu = smp_processor_id(); + + printk("CPU%u: Booted secondary processor\n", cpu); + + /* + * All kernel threads share the same mm context; grab a + * reference and switch to it. + */ + atomic_inc(&mm->mm_users); + atomic_inc(&mm->mm_count); + current->active_mm = mm; + cpu_set(cpu, mm->cpu_vm_mask); + cpu_switch_mm(mm->pgd, mm); + enter_lazy_tlb(mm, current); + + cpu_init(); + + /* + * Give the platform a chance to do its own initialisation. + */ + platform_secondary_init(cpu); + + /* + * Enable local interrupts. + */ + local_irq_enable(); + local_fiq_enable(); + + calibrate_delay(); + + smp_store_cpu_info(cpu); + + /* + * OK, now it's safe to let the boot CPU continue + */ + cpu_set(cpu, cpu_online_map); + + /* + * OK, it's off to the idle thread for us + */ + cpu_idle(); +} + /* * Called by both boot and secondaries to move global data into * per-processor storage. diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h index f21fd8f6bcdd..bd44f894690f 100644 --- a/include/asm-arm/smp.h +++ b/include/asm-arm/smp.h @@ -55,4 +55,18 @@ extern void smp_cross_call(cpumask_t callmap); */ extern int boot_secondary(unsigned int cpu, struct task_struct *); +/* + * Perform platform specific initialisation of the specified CPU. + */ +extern void platform_secondary_init(unsigned int cpu); + +/* + * Initial data for bringing up a secondary CPU. + */ +struct secondary_data { + unsigned long pgdir; + void *stack; +}; +extern struct secondary_data secondary_data; + #endif /* ifndef __ASM_ARM_SMP_H */ -- cgit v1.2.3 From 20cf33ea16253b9eed387cba022cb014563db40e Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 18 Jun 2005 10:15:46 +0100 Subject: [PATCH] ARM SMP: Add basic support Integrator/CP platform Add basic SMP support for the Integrator/CP platform. Signed-off-by: Russell King --- arch/arm/mach-integrator/Makefile | 1 + arch/arm/mach-integrator/core.c | 20 +++++++++++++++++++- arch/arm/mach-integrator/leds.c | 4 +++- 3 files changed, 23 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-integrator/Makefile b/arch/arm/mach-integrator/Makefile index 158daaf9e3b0..ebb255bdce8a 100644 --- a/arch/arm/mach-integrator/Makefile +++ b/arch/arm/mach-integrator/Makefile @@ -12,3 +12,4 @@ obj-$(CONFIG_LEDS) += leds.o obj-$(CONFIG_PCI) += pci_v3.o pci.o obj-$(CONFIG_CPU_FREQ_INTEGRATOR) += cpu.o obj-$(CONFIG_INTEGRATOR_IMPD1) += impd1.o +obj-$(CONFIG_SMP) += platsmp.o headsmp.o diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index bd17b5154311..d302f0405fd2 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -221,7 +222,24 @@ integrator_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) */ timer1->TimerClear = 1; - timer_tick(regs); + /* + * the clock tick routines are only processed on the + * primary CPU + */ + if (hard_smp_processor_id() == 0) { + nmi_tick(); + timer_tick(regs); +#ifdef CONFIG_SMP + smp_send_timer(); +#endif + } + +#ifdef CONFIG_SMP + /* + * this is the ARM equivalent of the APIC timer interrupt + */ + update_process_times(user_mode(regs)); +#endif /* CONFIG_SMP */ write_sequnlock(&xtime_lock); diff --git a/arch/arm/mach-integrator/leds.c b/arch/arm/mach-integrator/leds.c index d2c0ab21150c..f1436e683b49 100644 --- a/arch/arm/mach-integrator/leds.c +++ b/arch/arm/mach-integrator/leds.c @@ -22,6 +22,8 @@ */ #include #include +#include +#include #include #include @@ -85,4 +87,4 @@ static int __init leds_init(void) return 0; } -__initcall(leds_init); +core_initcall(leds_init); -- cgit v1.2.3 From fe6ef2daa29df8fef1a95446faccd18ab163993e Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 19 Jun 2005 09:52:07 +0100 Subject: [PATCH] ARM SMP: Add missed files from Integrator/CP platform Add missed new files from basic SMP support for the Integrator/CP platform. Signed-off-by: Russell King --- arch/arm/mach-integrator/headsmp.S | 37 +++++++ arch/arm/mach-integrator/platsmp.c | 192 ++++++++++++++++++++++++++++++++++ include/asm-arm/arch-integrator/smp.h | 19 ++++ 3 files changed, 248 insertions(+) create mode 100644 arch/arm/mach-integrator/headsmp.S create mode 100644 arch/arm/mach-integrator/platsmp.c create mode 100644 include/asm-arm/arch-integrator/smp.h (limited to 'arch') diff --git a/arch/arm/mach-integrator/headsmp.S b/arch/arm/mach-integrator/headsmp.S new file mode 100644 index 000000000000..ceaa88e30d70 --- /dev/null +++ b/arch/arm/mach-integrator/headsmp.S @@ -0,0 +1,37 @@ +/* + * linux/arch/arm/mach-integrator/headsmp.S + * + * Copyright (c) 2003 ARM Limited + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include + + __INIT + +/* + * Integrator specific entry point for secondary CPUs. This provides + * a "holding pen" into which all secondary cores are held until we're + * ready for them to initialise. + */ +ENTRY(integrator_secondary_startup) + adr r4, 1f + ldmia r4, {r5, r6} + sub r4, r4, r5 + ldr r6, [r6, r4] +pen: ldr r7, [r6] + cmp r7, r0 + bne pen + + /* + * we've been released from the holding pen: secondary_stack + * should now contain the SVC stack for this core + */ + b secondary_startup + +1: .long . + .long phys_pen_release diff --git a/arch/arm/mach-integrator/platsmp.c b/arch/arm/mach-integrator/platsmp.c new file mode 100644 index 000000000000..ead15dfcb53d --- /dev/null +++ b/arch/arm/mach-integrator/platsmp.c @@ -0,0 +1,192 @@ +/* + * linux/arch/arm/mach-cintegrator/platsmp.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +extern void integrator_secondary_startup(void); + +/* + * control for which core is the next to come out of the secondary + * boot "holding pen" + */ +volatile int __initdata pen_release = -1; +unsigned long __initdata phys_pen_release = 0; + +static DEFINE_SPINLOCK(boot_lock); + +void __init platform_secondary_init(unsigned int cpu) +{ + /* + * the primary core may have used a "cross call" soft interrupt + * to get this processor out of WFI in the BootMonitor - make + * sure that we are no longer being sent this soft interrupt + */ + smp_cross_call_done(cpumask_of_cpu(cpu)); + + /* + * if any interrupts are already enabled for the primary + * core (e.g. timer irq), then they will not have been enabled + * for us: do so + */ + secondary_scan_irqs(); + + /* + * let the primary processor know we're out of the + * pen, then head off into the C entry point + */ + pen_release = -1; + + /* + * Synchronise with the boot thread. + */ + spin_lock(&boot_lock); + spin_unlock(&boot_lock); +} + +int __init boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + unsigned long timeout; + + /* + * set synchronisation state between this boot processor + * and the secondary one + */ + spin_lock(&boot_lock); + + /* + * The secondary processor is waiting to be released from + * the holding pen - release it, then wait for it to flag + * that it has been released by resetting pen_release. + * + * Note that "pen_release" is the hardware CPU ID, whereas + * "cpu" is Linux's internal ID. + */ + pen_release = cpu; + + /* + * XXX + * + * This is a later addition to the booting protocol: the + * bootMonitor now puts secondary cores into WFI, so + * poke_milo() no longer gets the cores moving; we need + * to send a soft interrupt to wake the secondary core. + * Use smp_cross_call() for this, since there's little + * point duplicating the code here + */ + smp_cross_call(cpumask_of_cpu(cpu)); + + timeout = jiffies + (1 * HZ); + while (time_before(jiffies, timeout)) { + if (pen_release == -1) + break; + + udelay(10); + } + + /* + * now the secondary core is starting up let it run its + * calibrations, then wait for it to finish + */ + spin_unlock(&boot_lock); + + return pen_release != -1 ? -ENOSYS : 0; +} + +static void __init poke_milo(void) +{ + extern void secondary_startup(void); + + /* nobody is to be released from the pen yet */ + pen_release = -1; + + phys_pen_release = virt_to_phys(&pen_release); + + /* + * write the address of secondary startup into the system-wide + * flags register, then clear the bottom two bits, which is what + * BootMonitor is waiting for + */ +#if 1 +#define CINTEGRATOR_HDR_FLAGSS_OFFSET 0x30 + __raw_writel(virt_to_phys(integrator_secondary_startup), + (IO_ADDRESS(INTEGRATOR_HDR_BASE) + + CINTEGRATOR_HDR_FLAGSS_OFFSET)); +#define CINTEGRATOR_HDR_FLAGSC_OFFSET 0x34 + __raw_writel(3, + (IO_ADDRESS(INTEGRATOR_HDR_BASE) + + CINTEGRATOR_HDR_FLAGSC_OFFSET)); +#endif + + mb(); +} + +void __init smp_prepare_cpus(unsigned int max_cpus) +{ + unsigned int ncores = get_core_count(); + unsigned int cpu = smp_processor_id(); + int i; + + /* sanity check */ + if (ncores == 0) { + printk(KERN_ERR + "Integrator/CP: strange CM count of 0? Default to 1\n"); + + ncores = 1; + } + + if (ncores > NR_CPUS) { + printk(KERN_WARNING + "Integrator/CP: no. of cores (%d) greater than configured " + "maximum of %d - clipping\n", + ncores, NR_CPUS); + ncores = NR_CPUS; + } + + /* + * start with some more config for the Boot CPU, now that + * the world is a bit more alive (which was not the case + * when smp_prepare_boot_cpu() was called) + */ + smp_store_cpu_info(cpu); + + /* + * are we trying to boot more cores than exist? + */ + if (max_cpus > ncores) + max_cpus = ncores; + + /* + * Initialise the present mask - this tells us which CPUs should + * be present. + */ + for (i = 0; i < max_cpus; i++) { + cpu_set(i, cpu_present_mask); + } + + /* + * Do we need any more CPUs? If so, then let them know where + * to start. Note that, on modern versions of MILO, the "poke" + * doesn't actually do anything until each individual core is + * sent a soft interrupt to get it out of WFI + */ + if (max_cpus > 1) + poke_milo(); +} diff --git a/include/asm-arm/arch-integrator/smp.h b/include/asm-arm/arch-integrator/smp.h new file mode 100644 index 000000000000..0ec7093f7c37 --- /dev/null +++ b/include/asm-arm/arch-integrator/smp.h @@ -0,0 +1,19 @@ +#ifndef ASMARM_ARCH_SMP_H +#define ASMARM_ARCH_SMP_H + +#include + +#include +#include + +#define hard_smp_processor_id() \ + ({ \ + unsigned int cpunum; \ + __asm__("mrc p15, 0, %0, c0, c0, 5" \ + : "=r" (cpunum)); \ + cpunum &= 0x0F; \ + }) + +extern void secondary_scan_irqs(void); + +#endif -- cgit v1.2.3 From 36c5ed23b9f535d1c79986efb45f9c1f115e0997 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 19 Jun 2005 18:39:33 +0100 Subject: [PATCH] ARM SMP: Fix PXA/SA11x0 suspend resume crash We need to re-initialise the stack pointers for undefined, IRQ and abort mode handlers whenever we resume. Signed-off-by: Russell King --- arch/arm/kernel/setup.c | 2 +- arch/arm/mach-pxa/pm.c | 2 ++ arch/arm/mach-sa1100/pm.c | 2 ++ include/asm-arm/system.h | 1 + 4 files changed, 6 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7ecdda3f1253..9fed5fa194d9 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -328,7 +328,7 @@ static void __init setup_processor(void) * cpu_init dumps the cache information, initialises SMP specific * information, and sets up the per-CPU stacks. */ -void __init cpu_init(void) +void cpu_init(void) { unsigned int cpu = smp_processor_id(); struct stack *stk = &stacks[cpu]; diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c index 9799fe80df23..ac4dd4336160 100644 --- a/arch/arm/mach-pxa/pm.c +++ b/arch/arm/mach-pxa/pm.c @@ -133,6 +133,8 @@ static int pxa_pm_enter(suspend_state_t state) /* *** go zzz *** */ pxa_cpu_pm_enter(state); + cpu_init(); + /* after sleeping, validate the checksum */ checksum = 0; for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++) diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c index 379ea5e3950f..59c7964cfe11 100644 --- a/arch/arm/mach-sa1100/pm.c +++ b/arch/arm/mach-sa1100/pm.c @@ -88,6 +88,8 @@ static int sa11x0_pm_enter(suspend_state_t state) /* go zzz */ sa1100_cpu_suspend(); + cpu_init(); + /* * Ensure not to come back here if it wasn't intended */ diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index b13a8da4847b..8405eb6558ed 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -104,6 +104,7 @@ extern void show_pte(struct mm_struct *mm, unsigned long addr); extern void __show_regs(struct pt_regs *); extern int cpu_architecture(void); +extern void cpu_init(void); #define set_cr(x) \ __asm__ __volatile__( \ -- cgit v1.2.3 From 0908db22b189b28664cba3965ebb7e0df59c749a Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 19 Jun 2005 19:48:16 +0100 Subject: [PATCH] ARM SMP: Messages about CPUs should be prefixed by CPU%u Signed-off-by: Russell King --- arch/arm/kernel/smp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 45ed036336e0..34892758f098 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -145,7 +145,8 @@ int __init __cpu_up(unsigned int cpu) pgd_free(pgd); if (ret) { - printk(KERN_CRIT "cpu_up: processor %d failed to boot\n", cpu); + printk(KERN_CRIT "CPU%u: processor failed to boot\n", cpu); + /* * FIXME: We need to clean up the new idle thread. --rmk */ -- cgit v1.2.3 From 8830f04a092b47f3d246271b24685cd9eab82027 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 09:51:03 +0100 Subject: [PATCH] ARM: Fix delayed dcache flush for ARMv6 non-aliasing caches flush_dcache_page() did nothing for these caches, but since they suffer from I/D cache coherency issues, we need to ensure that data is written back to RAM. Signed-off-by: Russell King --- arch/arm/mm/fault-armv.c | 31 +++++++++++-------------------- arch/arm/mm/flush.c | 44 ++++++++++++++++++-------------------------- 2 files changed, 29 insertions(+), 46 deletions(-) (limited to 'arch') diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c index 01967ddeef53..be4ab3d73c91 100644 --- a/arch/arm/mm/fault-armv.c +++ b/arch/arm/mm/fault-armv.c @@ -77,9 +77,8 @@ no_pmd: } static void -make_coherent(struct vm_area_struct *vma, unsigned long addr, struct page *page, int dirty) +make_coherent(struct address_space *mapping, struct vm_area_struct *vma, unsigned long addr, unsigned long pfn) { - struct address_space *mapping = page_mapping(page); struct mm_struct *mm = vma->vm_mm; struct vm_area_struct *mpnt; struct prio_tree_iter iter; @@ -87,9 +86,6 @@ make_coherent(struct vm_area_struct *vma, unsigned long addr, struct page *page, pgoff_t pgoff; int aliases = 0; - if (!mapping) - return; - pgoff = vma->vm_pgoff + ((addr - vma->vm_start) >> PAGE_SHIFT); /* @@ -115,9 +111,11 @@ make_coherent(struct vm_area_struct *vma, unsigned long addr, struct page *page, if (aliases) adjust_pte(vma, addr); else - flush_cache_page(vma, addr, page_to_pfn(page)); + flush_cache_page(vma, addr, pfn); } +void __flush_dcache_page(struct address_space *mapping, struct page *page); + /* * Take care of architecture specific things when placing a new PTE into * a page table, or changing an existing PTE. Basically, there are two @@ -134,29 +132,22 @@ make_coherent(struct vm_area_struct *vma, unsigned long addr, struct page *page, void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t pte) { unsigned long pfn = pte_pfn(pte); + struct address_space *mapping; struct page *page; if (!pfn_valid(pfn)) return; + page = pfn_to_page(pfn); - if (page_mapping(page)) { + mapping = page_mapping(page); + if (mapping) { int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags); - if (dirty) { - /* - * This is our first userspace mapping of this page. - * Ensure that the physical page is coherent with - * the kernel mapping. - * - * FIXME: only need to do this on VIVT and aliasing - * VIPT cache architectures. We can do that - * by choosing whether to set this bit... - */ - __cpuc_flush_dcache_page(page_address(page)); - } + if (dirty) + __flush_dcache_page(mapping, page); if (cache_is_vivt()) - make_coherent(vma, addr, page, dirty); + make_coherent(mapping, vma, addr, pfn); } } diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index 4085ed983e46..191788fb18d1 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -37,13 +37,8 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) #define flush_pfn_alias(pfn,vaddr) do { } while (0) #endif -static void __flush_dcache_page(struct address_space *mapping, struct page *page) +void __flush_dcache_page(struct address_space *mapping, struct page *page) { - struct mm_struct *mm = current->active_mm; - struct vm_area_struct *mpnt; - struct prio_tree_iter iter; - pgoff_t pgoff; - /* * Writeback any data associated with the kernel mapping of this * page. This ensures that data in the physical page is mutually @@ -52,24 +47,21 @@ static void __flush_dcache_page(struct address_space *mapping, struct page *page __cpuc_flush_dcache_page(page_address(page)); /* - * If there's no mapping pointer here, then this page isn't - * visible to userspace yet, so there are no cache lines - * associated with any other aliases. - */ - if (!mapping) - return; - - /* - * This is a page cache page. If we have a VIPT cache, we - * only need to do one flush - which would be at the relevant + * If this is a page cache page, and we have an aliasing VIPT cache, + * we only need to do one flush - which would be at the relevant * userspace colour, which is congruent with page->index. */ - if (cache_is_vipt()) { - if (cache_is_vipt_aliasing()) - flush_pfn_alias(page_to_pfn(page), - page->index << PAGE_CACHE_SHIFT); - return; - } + if (mapping && cache_is_vipt_aliasing()) + flush_pfn_alias(page_to_pfn(page), + page->index << PAGE_CACHE_SHIFT); +} + +static void __flush_dcache_aliases(struct address_space *mapping, struct page *page) +{ + struct mm_struct *mm = current->active_mm; + struct vm_area_struct *mpnt; + struct prio_tree_iter iter; + pgoff_t pgoff; /* * There are possible user space mappings of this page: @@ -116,12 +108,12 @@ void flush_dcache_page(struct page *page) { struct address_space *mapping = page_mapping(page); - if (cache_is_vipt_nonaliasing()) - return; - if (mapping && !mapping_mapped(mapping)) set_bit(PG_dcache_dirty, &page->flags); - else + else { __flush_dcache_page(mapping, page); + if (mapping && cache_is_vivt()) + __flush_dcache_aliases(mapping, page); + } } EXPORT_SYMBOL(flush_dcache_page); -- cgit v1.2.3 From b8a9b66fbee09d0cc71c272b5c1d1f3320afbbf0 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 11:31:09 +0100 Subject: [PATCH] ARM: Add common CACHE_COLOUR macro Signed-off-by: Russell King --- arch/arm/mm/copypage-v6.c | 6 ++---- include/asm-arm/cacheflush.h | 3 +++ 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c index a8c00236bd3d..27d041574ea7 100644 --- a/arch/arm/mm/copypage-v6.c +++ b/arch/arm/mm/copypage-v6.c @@ -30,8 +30,6 @@ static DEFINE_SPINLOCK(v6_lock); -#define DCACHE_COLOUR(vaddr) ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT) - /* * Copy the user page. No aliasing to deal with so we can just * attack the kernel's existing mapping of these pages. @@ -55,7 +53,7 @@ void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr) */ void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vaddr) { - unsigned int offset = DCACHE_COLOUR(vaddr); + unsigned int offset = CACHE_COLOUR(vaddr); unsigned long from, to; /* @@ -95,7 +93,7 @@ void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vadd */ void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr) { - unsigned int offset = DCACHE_COLOUR(vaddr); + unsigned int offset = CACHE_COLOUR(vaddr); unsigned long to = to_address + (offset << PAGE_SHIFT); /* diff --git a/include/asm-arm/cacheflush.h b/include/asm-arm/cacheflush.h index 09ffeed507c2..035cdcff43d2 100644 --- a/include/asm-arm/cacheflush.h +++ b/include/asm-arm/cacheflush.h @@ -16,6 +16,9 @@ #include #include +#include + +#define CACHE_COLOUR(vaddr) ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT) /* * Cache Model -- cgit v1.2.3 From 5abc100e882a979f8f5be8184938305b3fb2df2b Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 12:31:14 +0100 Subject: [PATCH] ARM: Ensure DMA-bounced buffers are properly written to RAM When DMA bounce buffers were unmapped and the data was memcpy'd to the original buffer, we were not ensuring that the data was written to RAM. This means that there was the potential for page cache pages to have different cache states depending whether they've been bounced or not. Signed-off-by: Russell King --- arch/arm/common/dmabounce.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 5797b1b100a1..39dd33ff6f37 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -302,12 +302,24 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, DO_STATS ( device_info->bounce_count++ ); - if ((dir == DMA_FROM_DEVICE) || - (dir == DMA_BIDIRECTIONAL)) { + if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL) { + unsigned long ptr; + dev_dbg(dev, "%s: copy back safe %p to unsafe %p size %d\n", __func__, buf->safe, buf->ptr, size); memcpy(buf->ptr, buf->safe, size); + + /* + * DMA buffers must have the same cache properties + * as if they were really used for DMA - which means + * data must be written back to RAM. Note that + * we don't use dmac_flush_range() here for the + * bidirectional case because we know the cache + * lines will be coherent with the data written. + */ + ptr = (unsigned long)buf->ptr; + dmac_clean_range(ptr, ptr + size); } free_safe_buffer(device_info, buf); } -- cgit v1.2.3 From ad21798e0ecc3b54720a2420b341f51dfb254706 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 20 Jun 2005 21:43:07 +1000 Subject: [PATCH] ppc64: quieten RTAS printks Some rtasd printks were too loud. They would appear on a quiet boot even though they were only informational. Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- arch/ppc64/kernel/rtasd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/rtasd.c b/arch/ppc64/kernel/rtasd.c index ff65dc33320e..b0c3b829fe47 100644 --- a/arch/ppc64/kernel/rtasd.c +++ b/arch/ppc64/kernel/rtasd.c @@ -440,7 +440,7 @@ static int rtasd(void *unused) goto error; } - printk(KERN_ERR "RTAS daemon started\n"); + printk(KERN_INFO "RTAS daemon started\n"); DEBUG("will sleep for %d jiffies\n", (HZ*60/rtas_event_scan_rate) / 2); @@ -485,7 +485,7 @@ static int __init rtas_init(void) /* No RTAS, only warn if we are on a pSeries box */ if (rtas_token("event-scan") == RTAS_UNKNOWN_SERVICE) { if (systemcfg->platform & PLATFORM_PSERIES) - printk(KERN_ERR "rtasd: no event-scan on system\n"); + printk(KERN_INFO "rtasd: no event-scan on system\n"); return 1; } -- cgit v1.2.3 From 0231c290d817513d448963520a97eadd51a370b7 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 20 Jun 2005 21:43:15 +1000 Subject: [PATCH] ppc64: use cpu_has_feature macro Use the new cpu_has_feature macros instead of open coding it. Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- arch/ppc64/kernel/pSeries_smp.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/ppc64/kernel/pSeries_smp.c b/arch/ppc64/kernel/pSeries_smp.c index fbad349ec58c..4203bd020c82 100644 --- a/arch/ppc64/kernel/pSeries_smp.c +++ b/arch/ppc64/kernel/pSeries_smp.c @@ -375,7 +375,7 @@ static int smp_pSeries_cpu_bootable(unsigned int nr) * cpus are assumed to be secondary threads. */ if (system_state < SYSTEM_RUNNING && - cur_cpu_spec->cpu_features & CPU_FTR_SMT && + cpu_has_feature(CPU_FTR_SMT) && !smt_enabled_at_boot && nr % 2 != 0) return 0; @@ -419,8 +419,8 @@ void __init smp_init_pSeries(void) #endif /* Mark threads which are still spinning in hold loops. */ - if (cur_cpu_spec->cpu_features & CPU_FTR_SMT) - for_each_present_cpu(i) { + if (cpu_has_feature(CPU_FTR_SMT)) { + for_each_present_cpu(i) { if (i % 2 == 0) /* * Even-numbered logical cpus correspond to @@ -428,8 +428,9 @@ void __init smp_init_pSeries(void) */ cpu_set(i, of_spin_map); } - else + } else { of_spin_map = cpu_present_map; + } cpu_clear(boot_cpuid, of_spin_map); -- cgit v1.2.3 From d3588ba9bbade7f1fde59726c9af43eeeb08e092 Mon Sep 17 00:00:00 2001 From: John Rose Date: Mon, 20 Jun 2005 21:43:48 +1000 Subject: [PATCH] initialize TCE tables A fairly recent platform requirement states that the OS must clear the whole TCE table at setup time, in case firmware left any active mappings in it. Without this initialization, dynamic bus removes can fail. Firmware rejects these requests if active mappings still exist for a slot that has been deallocated by the OS. Signed-off-by: John Rose Signed-off-by: Paul Mackerras --- arch/ppc64/kernel/iommu.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch') diff --git a/arch/ppc64/kernel/iommu.c b/arch/ppc64/kernel/iommu.c index 344164681d2c..8316426ccaf6 100644 --- a/arch/ppc64/kernel/iommu.c +++ b/arch/ppc64/kernel/iommu.c @@ -423,6 +423,9 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl) tbl->it_largehint = tbl->it_halfpoint; spin_lock_init(&tbl->it_lock); + /* Clear the hardware table in case firmware left allocations in it */ + ppc_md.tce_free(tbl, tbl->it_offset, tbl->it_size); + if (!welcomed) { printk(KERN_INFO "IOMMU table initialized, virtual merging %s\n", novmerge ? "disabled" : "enabled"); -- cgit v1.2.3 From 34c8eacab670e578a2aaafdf1061efd214b2f639 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 12:56:40 +0100 Subject: [PATCH] ARM: Remove obsolete arch/arm/kernel/arch.c This is not used anymore - RiscPC now contains the necessary supporting code. Signed-off-by: Russell King --- arch/arm/kernel/Makefile | 2 +- arch/arm/kernel/arch.c | 46 ---------------------------------------------- 2 files changed, 1 insertion(+), 47 deletions(-) delete mode 100644 arch/arm/kernel/arch.c (limited to 'arch') diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index 4a2af55e134b..3e1b0327e4d7 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -6,7 +6,7 @@ AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR) # Object file lists. -obj-y := arch.o compat.o dma.o entry-armv.o entry-common.o irq.o \ +obj-y := compat.o dma.o entry-armv.o entry-common.o irq.o \ process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \ time.o traps.o diff --git a/arch/arm/kernel/arch.c b/arch/arm/kernel/arch.c deleted file mode 100644 index 4e02fbeb10a6..000000000000 --- a/arch/arm/kernel/arch.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * linux/arch/arm/kernel/arch.c - * - * Architecture specific fixups. - */ -#include -#include -#include - -#include -#include -#include -#include - -unsigned int vram_size; - -#ifdef CONFIG_ARCH_ACORN - -unsigned int memc_ctrl_reg; -unsigned int number_mfm_drives; - -static int __init parse_tag_acorn(const struct tag *tag) -{ - memc_ctrl_reg = tag->u.acorn.memc_control_reg; - number_mfm_drives = tag->u.acorn.adfsdrives; - - switch (tag->u.acorn.vram_pages) { - case 512: - vram_size += PAGE_SIZE * 256; - case 256: - vram_size += PAGE_SIZE * 256; - default: - break; - } -#if 0 - if (vram_size) { - desc->video_start = 0x02000000; - desc->video_end = 0x02000000 + vram_size; - } -#endif - return 0; -} - -__tagtable(ATAG_ACORN, parse_tag_acorn); - -#endif -- cgit v1.2.3 From f29481c0e7e55efc25598c1a6c503015cfe45245 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 15:49:59 +0100 Subject: [PATCH] ARM: Remove gcc type-isms from GCC helper functions Convert ugly GCC types to Linux types: UQImode -> u8 SImode -> s32 USImode -> u32 DImode -> s64 UDImode -> u64 word_type -> int Signed-off-by: Russell King --- arch/arm/lib/ashldi3.c | 16 ++++++------ arch/arm/lib/ashrdi3.c | 14 +++++------ arch/arm/lib/gcclib.h | 17 +++++-------- arch/arm/lib/longlong.h | 66 ++++++++++++++++++++++++------------------------- arch/arm/lib/lshrdi3.c | 16 ++++++------ arch/arm/lib/muldi3.c | 18 +++++++------- arch/arm/lib/ucmpdi2.c | 12 ++++----- arch/arm/lib/udivdi3.c | 26 +++++++++---------- 8 files changed, 90 insertions(+), 95 deletions(-) (limited to 'arch') diff --git a/arch/arm/lib/ashldi3.c b/arch/arm/lib/ashldi3.c index 130f5a839669..02d2b628ebc1 100644 --- a/arch/arm/lib/ashldi3.c +++ b/arch/arm/lib/ashldi3.c @@ -31,11 +31,11 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -DItype -__ashldi3 (DItype u, word_type b) +s64 +__ashldi3 (s64 u, int b) { DIunion w; - word_type bm; + int bm; DIunion uu; if (b == 0) @@ -43,17 +43,17 @@ __ashldi3 (DItype u, word_type b) uu.ll = u; - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; + bm = (sizeof (s32) * BITS_PER_UNIT) - b; if (bm <= 0) { w.s.low = 0; - w.s.high = (USItype)uu.s.low << -bm; + w.s.high = (u32)uu.s.low << -bm; } else { - USItype carries = (USItype)uu.s.low >> bm; - w.s.low = (USItype)uu.s.low << b; - w.s.high = ((USItype)uu.s.high << b) | carries; + u32 carries = (u32)uu.s.low >> bm; + w.s.low = (u32)uu.s.low << b; + w.s.high = ((u32)uu.s.high << b) | carries; } return w.ll; diff --git a/arch/arm/lib/ashrdi3.c b/arch/arm/lib/ashrdi3.c index 71625d218f8d..89f6fb7ed8fb 100644 --- a/arch/arm/lib/ashrdi3.c +++ b/arch/arm/lib/ashrdi3.c @@ -31,11 +31,11 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -DItype -__ashrdi3 (DItype u, word_type b) +s64 +__ashrdi3 (s64 u, int b) { DIunion w; - word_type bm; + int bm; DIunion uu; if (b == 0) @@ -43,18 +43,18 @@ __ashrdi3 (DItype u, word_type b) uu.ll = u; - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; + bm = (sizeof (s32) * BITS_PER_UNIT) - b; if (bm <= 0) { /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1); + w.s.high = uu.s.high >> (sizeof (s32) * BITS_PER_UNIT - 1); w.s.low = uu.s.high >> -bm; } else { - USItype carries = (USItype)uu.s.high << bm; + u32 carries = (u32)uu.s.high << bm; w.s.high = uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; + w.s.low = ((u32)uu.s.low >> b) | carries; } return w.ll; diff --git a/arch/arm/lib/gcclib.h b/arch/arm/lib/gcclib.h index 65314a3d9e27..283f5294cc3e 100644 --- a/arch/arm/lib/gcclib.h +++ b/arch/arm/lib/gcclib.h @@ -1,25 +1,20 @@ /* gcclib.h -- definitions for various functions 'borrowed' from gcc-2.95.3 */ /* I Molton 29/07/01 */ -#define BITS_PER_UNIT 8 -#define SI_TYPE_SIZE (sizeof (SItype) * BITS_PER_UNIT) +#include -typedef unsigned int UQItype __attribute__ ((mode (QI))); -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); -typedef unsigned int UDItype __attribute__ ((mode (DI))); +#define BITS_PER_UNIT 8 +#define SI_TYPE_SIZE (sizeof(s32) * BITS_PER_UNIT) #ifdef __ARMEB__ - struct DIstruct {SItype high, low;}; + struct DIstruct {s32 high, low;}; #else - struct DIstruct {SItype low, high;}; + struct DIstruct {s32 low, high;}; #endif typedef union { struct DIstruct s; - DItype ll; + s64 ll; } DIunion; diff --git a/arch/arm/lib/longlong.h b/arch/arm/lib/longlong.h index 179eea4edc35..3ef76957481e 100644 --- a/arch/arm/lib/longlong.h +++ b/arch/arm/lib/longlong.h @@ -26,18 +26,18 @@ #define __BITS4 (SI_TYPE_SIZE / 4) #define __ll_B (1L << (SI_TYPE_SIZE / 2)) -#define __ll_lowpart(t) ((USItype) (t) % __ll_B) -#define __ll_highpart(t) ((USItype) (t) / __ll_B) +#define __ll_lowpart(t) ((u32) (t) % __ll_B) +#define __ll_highpart(t) ((u32) (t) / __ll_B) /* Define auxiliary asm macros. 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) - multiplies two USItype integers MULTIPLER and MULTIPLICAND, - and generates a two-part USItype product in HIGH_PROD and + multiplies two u32 integers MULTIPLER and MULTIPLICAND, + and generates a two-part u32 product in HIGH_PROD and LOW_PROD. - 2) __umulsidi3(a,b) multiplies two USItype integers A and B, - and returns a UDItype product. This is just a variant of umul_ppmm. + 2) __umulsidi3(a,b) multiplies two u32 integers A and B, + and returns a u64 product. This is just a variant of umul_ppmm. 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, denominator) divides a two-word unsigned integer, composed by the @@ -77,23 +77,23 @@ #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ __asm__ ("adds %1, %4, %5 \n\ adc %0, %2, %3" \ - : "=r" ((USItype) (sh)), \ - "=&r" ((USItype) (sl)) \ - : "%r" ((USItype) (ah)), \ - "rI" ((USItype) (bh)), \ - "%r" ((USItype) (al)), \ - "rI" ((USItype) (bl))) + : "=r" ((u32) (sh)), \ + "=&r" ((u32) (sl)) \ + : "%r" ((u32) (ah)), \ + "rI" ((u32) (bh)), \ + "%r" ((u32) (al)), \ + "rI" ((u32) (bl))) #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ __asm__ ("subs %1, %4, %5 \n\ sbc %0, %2, %3" \ - : "=r" ((USItype) (sh)), \ - "=&r" ((USItype) (sl)) \ - : "r" ((USItype) (ah)), \ - "rI" ((USItype) (bh)), \ - "r" ((USItype) (al)), \ - "rI" ((USItype) (bl))) + : "=r" ((u32) (sh)), \ + "=&r" ((u32) (sl)) \ + : "r" ((u32) (ah)), \ + "rI" ((u32) (bh)), \ + "r" ((u32) (al)), \ + "rI" ((u32) (bl))) #define umul_ppmm(xh, xl, a, b) \ -{register USItype __t0, __t1, __t2; \ +{register u32 __t0, __t1, __t2; \ __asm__ ("%@ Inlined umul_ppmm \n\ mov %2, %5, lsr #16 \n\ mov %0, %6, lsr #16 \n\ @@ -107,11 +107,11 @@ addcs %0, %0, #65536 \n\ adds %1, %1, %3, lsl #16 \n\ adc %0, %0, %3, lsr #16" \ - : "=&r" ((USItype) (xh)), \ - "=r" ((USItype) (xl)), \ + : "=&r" ((u32) (xh)), \ + "=r" ((u32) (xl)), \ "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ - : "r" ((USItype) (a)), \ - "r" ((USItype) (b)));} + : "r" ((u32) (a)), \ + "r" ((u32) (b)));} #define UMUL_TIME 20 #define UDIV_TIME 100 #endif /* __arm__ */ @@ -123,14 +123,14 @@ #define __udiv_qrnnd_c(q, r, n1, n0, d) \ do { \ - USItype __d1, __d0, __q1, __q0; \ - USItype __r1, __r0, __m; \ + u32 __d1, __d0, __q1, __q0; \ + u32 __r1, __r0, __m; \ __d1 = __ll_highpart (d); \ __d0 = __ll_lowpart (d); \ \ __r1 = (n1) % __d1; \ __q1 = (n1) / __d1; \ - __m = (USItype) __q1 * __d0; \ + __m = (u32) __q1 * __d0; \ __r1 = __r1 * __ll_B | __ll_highpart (n0); \ if (__r1 < __m) \ { \ @@ -143,7 +143,7 @@ \ __r0 = __r1 % __d1; \ __q0 = __r1 / __d1; \ - __m = (USItype) __q0 * __d0; \ + __m = (u32) __q0 * __d0; \ __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ if (__r0 < __m) \ { \ @@ -154,7 +154,7 @@ } \ __r0 -= __m; \ \ - (q) = (USItype) __q1 * __ll_B | __q0; \ + (q) = (u32) __q1 * __ll_B | __q0; \ (r) = __r0; \ } while (0) @@ -163,14 +163,14 @@ #define count_leading_zeros(count, x) \ do { \ - USItype __xr = (x); \ - USItype __a; \ + u32 __xr = (x); \ + u32 __a; \ \ if (SI_TYPE_SIZE <= 32) \ { \ - __a = __xr < ((USItype)1<<2*__BITS4) \ - ? (__xr < ((USItype)1<<__BITS4) ? 0 : __BITS4) \ - : (__xr < ((USItype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \ + __a = __xr < ((u32)1<<2*__BITS4) \ + ? (__xr < ((u32)1<<__BITS4) ? 0 : __BITS4) \ + : (__xr < ((u32)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \ } \ else \ { \ diff --git a/arch/arm/lib/lshrdi3.c b/arch/arm/lib/lshrdi3.c index b666f1bad451..5c2385acdecc 100644 --- a/arch/arm/lib/lshrdi3.c +++ b/arch/arm/lib/lshrdi3.c @@ -31,11 +31,11 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -DItype -__lshrdi3 (DItype u, word_type b) +s64 +__lshrdi3 (s64 u, int b) { DIunion w; - word_type bm; + int bm; DIunion uu; if (b == 0) @@ -43,17 +43,17 @@ __lshrdi3 (DItype u, word_type b) uu.ll = u; - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; + bm = (sizeof (s32) * BITS_PER_UNIT) - b; if (bm <= 0) { w.s.high = 0; - w.s.low = (USItype)uu.s.high >> -bm; + w.s.low = (u32)uu.s.high >> -bm; } else { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = (USItype)uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; + u32 carries = (u32)uu.s.high << bm; + w.s.high = (u32)uu.s.high >> b; + w.s.low = ((u32)uu.s.low >> b) | carries; } return w.ll; diff --git a/arch/arm/lib/muldi3.c b/arch/arm/lib/muldi3.c index 44d611b1cfdb..5b649fa9e2f7 100644 --- a/arch/arm/lib/muldi3.c +++ b/arch/arm/lib/muldi3.c @@ -32,7 +32,7 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" #define umul_ppmm(xh, xl, a, b) \ -{register USItype __t0, __t1, __t2; \ +{register u32 __t0, __t1, __t2; \ __asm__ ("%@ Inlined umul_ppmm \n\ mov %2, %5, lsr #16 \n\ mov %0, %6, lsr #16 \n\ @@ -46,11 +46,11 @@ Boston, MA 02111-1307, USA. */ addcs %0, %0, #65536 \n\ adds %1, %1, %3, lsl #16 \n\ adc %0, %0, %3, lsr #16" \ - : "=&r" ((USItype) (xh)), \ - "=r" ((USItype) (xl)), \ + : "=&r" ((u32) (xh)), \ + "=r" ((u32) (xl)), \ "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ - : "r" ((USItype) (a)), \ - "r" ((USItype) (b)));} + : "r" ((u32) (a)), \ + "r" ((u32) (b)));} #define __umulsidi3(u, v) \ @@ -59,8 +59,8 @@ Boston, MA 02111-1307, USA. */ __w.ll; }) -DItype -__muldi3 (DItype u, DItype v) +s64 +__muldi3 (s64 u, s64 v) { DIunion w; DIunion uu, vv; @@ -69,8 +69,8 @@ __muldi3 (DItype u, DItype v) vv.ll = v; w.ll = __umulsidi3 (uu.s.low, vv.s.low); - w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high - + (USItype) uu.s.high * (USItype) vv.s.low); + w.s.high += ((u32) uu.s.low * (u32) vv.s.high + + (u32) uu.s.high * (u32) vv.s.low); return w.ll; } diff --git a/arch/arm/lib/ucmpdi2.c b/arch/arm/lib/ucmpdi2.c index 6c6ae63efa02..3eb438c065b3 100644 --- a/arch/arm/lib/ucmpdi2.c +++ b/arch/arm/lib/ucmpdi2.c @@ -31,20 +31,20 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -word_type -__ucmpdi2 (DItype a, DItype b) +int +__ucmpdi2 (s64 a, s64 b) { DIunion au, bu; au.ll = a, bu.ll = b; - if ((USItype) au.s.high < (USItype) bu.s.high) + if ((u32) au.s.high < (u32) bu.s.high) return 0; - else if ((USItype) au.s.high > (USItype) bu.s.high) + else if ((u32) au.s.high > (u32) bu.s.high) return 2; - if ((USItype) au.s.low < (USItype) bu.s.low) + if ((u32) au.s.low < (u32) bu.s.low) return 0; - else if ((USItype) au.s.low > (USItype) bu.s.low) + else if ((u32) au.s.low > (u32) bu.s.low) return 2; return 1; } diff --git a/arch/arm/lib/udivdi3.c b/arch/arm/lib/udivdi3.c index d25195f673f4..df1d5ef62bc7 100644 --- a/arch/arm/lib/udivdi3.c +++ b/arch/arm/lib/udivdi3.c @@ -32,7 +32,7 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" #include "longlong.h" -static const UQItype __clz_tab[] = +static const u8 __clz_tab[] = { 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, @@ -44,15 +44,15 @@ static const UQItype __clz_tab[] = 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, }; -UDItype -__udivmoddi4 (UDItype n, UDItype d, UDItype *rp) +u64 +__udivmoddi4 (u64 n, u64 d, u64 *rp) { DIunion ww; DIunion nn, dd; DIunion rr; - USItype d0, d1, n0, n1, n2; - USItype q0, q1; - USItype b, bm; + u32 d0, d1, n0, n1, n2; + u32 q0, q1; + u32 b, bm; nn.ll = n; dd.ll = d; @@ -185,7 +185,7 @@ __udivmoddi4 (UDItype n, UDItype d, UDItype *rp) } else { - USItype m1, m0; + u32 m1, m0; /* Normalize. */ b = SI_TYPE_SIZE - bm; @@ -224,16 +224,16 @@ __udivmoddi4 (UDItype n, UDItype d, UDItype *rp) return ww.ll; } -UDItype -__udivdi3 (UDItype n, UDItype d) +u64 +__udivdi3 (u64 n, u64 d) { - return __udivmoddi4 (n, d, (UDItype *) 0); + return __udivmoddi4 (n, d, (u64 *) 0); } -UDItype -__umoddi3 (UDItype u, UDItype v) +u64 +__umoddi3 (u64 u, u64 v) { - UDItype w; + u64 w; (void) __udivmoddi4 (u ,v, &w); -- cgit v1.2.3 From 3ade2fe0fd0238d68938b8f5f73ebd0561d2d2e5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 16:45:32 +0100 Subject: [PATCH] ARM: Lindent GCC helper functions Signed-off-by: Russell King --- arch/arm/lib/ashldi3.c | 47 +++--- arch/arm/lib/ashrdi3.c | 48 +++---- arch/arm/lib/gcclib.h | 20 +-- arch/arm/lib/longlong.h | 2 +- arch/arm/lib/lshrdi3.c | 47 +++--- arch/arm/lib/muldi3.c | 21 ++- arch/arm/lib/ucmpdi2.c | 30 ++-- arch/arm/lib/udivdi3.c | 372 +++++++++++++++++++++++------------------------- 8 files changed, 274 insertions(+), 313 deletions(-) (limited to 'arch') diff --git a/arch/arm/lib/ashldi3.c b/arch/arm/lib/ashldi3.c index 02d2b628ebc1..b62875cfd8f8 100644 --- a/arch/arm/lib/ashldi3.c +++ b/arch/arm/lib/ashldi3.c @@ -31,31 +31,26 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -s64 -__ashldi3 (s64 u, int b) +s64 __ashldi3(s64 u, int b) { - DIunion w; - int bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (s32) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.low = 0; - w.s.high = (u32)uu.s.low << -bm; - } - else - { - u32 carries = (u32)uu.s.low >> bm; - w.s.low = (u32)uu.s.low << b; - w.s.high = ((u32)uu.s.high << b) | carries; - } - - return w.ll; + DIunion w; + int bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof(s32) * BITS_PER_UNIT) - b; + if (bm <= 0) { + w.s.low = 0; + w.s.high = (u32) uu.s.low << -bm; + } else { + u32 carries = (u32) uu.s.low >> bm; + w.s.low = (u32) uu.s.low << b; + w.s.high = ((u32) uu.s.high << b) | carries; + } + + return w.ll; } - diff --git a/arch/arm/lib/ashrdi3.c b/arch/arm/lib/ashrdi3.c index 89f6fb7ed8fb..9a8600a7543f 100644 --- a/arch/arm/lib/ashrdi3.c +++ b/arch/arm/lib/ashrdi3.c @@ -31,31 +31,27 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -s64 -__ashrdi3 (s64 u, int b) +s64 __ashrdi3(s64 u, int b) { - DIunion w; - int bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (s32) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (s32) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } - else - { - u32 carries = (u32)uu.s.high << bm; - w.s.high = uu.s.high >> b; - w.s.low = ((u32)uu.s.low >> b) | carries; - } - - return w.ll; + DIunion w; + int bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof(s32) * BITS_PER_UNIT) - b; + if (bm <= 0) { + /* w.s.high = 1..1 or 0..0 */ + w.s.high = uu.s.high >> (sizeof(s32) * BITS_PER_UNIT - 1); + w.s.low = uu.s.high >> -bm; + } else { + u32 carries = (u32) uu.s.high << bm; + w.s.high = uu.s.high >> b; + w.s.low = ((u32) uu.s.low >> b) | carries; + } + + return w.ll; } diff --git a/arch/arm/lib/gcclib.h b/arch/arm/lib/gcclib.h index 283f5294cc3e..8b6dcc656de7 100644 --- a/arch/arm/lib/gcclib.h +++ b/arch/arm/lib/gcclib.h @@ -3,18 +3,20 @@ #include -#define BITS_PER_UNIT 8 -#define SI_TYPE_SIZE (sizeof(s32) * BITS_PER_UNIT) +#define BITS_PER_UNIT 8 +#define SI_TYPE_SIZE (sizeof(s32) * BITS_PER_UNIT) #ifdef __ARMEB__ - struct DIstruct {s32 high, low;}; +struct DIstruct { + s32 high, low; +}; #else - struct DIstruct {s32 low, high;}; +struct DIstruct { + s32 low, high; +}; #endif -typedef union -{ - struct DIstruct s; - s64 ll; +typedef union { + struct DIstruct s; + s64 ll; } DIunion; - diff --git a/arch/arm/lib/longlong.h b/arch/arm/lib/longlong.h index 3ef76957481e..90ae647e4d76 100644 --- a/arch/arm/lib/longlong.h +++ b/arch/arm/lib/longlong.h @@ -114,7 +114,7 @@ "r" ((u32) (b)));} #define UMUL_TIME 20 #define UDIV_TIME 100 -#endif /* __arm__ */ +#endif /* __arm__ */ #define __umulsidi3(u, v) \ ({DIunion __w; \ diff --git a/arch/arm/lib/lshrdi3.c b/arch/arm/lib/lshrdi3.c index 5c2385acdecc..3681f49d2b6e 100644 --- a/arch/arm/lib/lshrdi3.c +++ b/arch/arm/lib/lshrdi3.c @@ -31,31 +31,26 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -s64 -__lshrdi3 (s64 u, int b) +s64 __lshrdi3(s64 u, int b) { - DIunion w; - int bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (s32) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.high = 0; - w.s.low = (u32)uu.s.high >> -bm; - } - else - { - u32 carries = (u32)uu.s.high << bm; - w.s.high = (u32)uu.s.high >> b; - w.s.low = ((u32)uu.s.low >> b) | carries; - } - - return w.ll; + DIunion w; + int bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof(s32) * BITS_PER_UNIT) - b; + if (bm <= 0) { + w.s.high = 0; + w.s.low = (u32) uu.s.high >> -bm; + } else { + u32 carries = (u32) uu.s.high << bm; + w.s.high = (u32) uu.s.high >> b; + w.s.low = ((u32) uu.s.low >> b) | carries; + } + + return w.ll; } - diff --git a/arch/arm/lib/muldi3.c b/arch/arm/lib/muldi3.c index 5b649fa9e2f7..0a3b93313f18 100644 --- a/arch/arm/lib/muldi3.c +++ b/arch/arm/lib/muldi3.c @@ -52,26 +52,21 @@ Boston, MA 02111-1307, USA. */ : "r" ((u32) (a)), \ "r" ((u32) (b)));} - #define __umulsidi3(u, v) \ ({DIunion __w; \ umul_ppmm (__w.s.high, __w.s.low, u, v); \ __w.ll; }) - -s64 -__muldi3 (s64 u, s64 v) +s64 __muldi3(s64 u, s64 v) { - DIunion w; - DIunion uu, vv; + DIunion w; + DIunion uu, vv; - uu.ll = u, - vv.ll = v; + uu.ll = u, vv.ll = v; - w.ll = __umulsidi3 (uu.s.low, vv.s.low); - w.s.high += ((u32) uu.s.low * (u32) vv.s.high - + (u32) uu.s.high * (u32) vv.s.low); + w.ll = __umulsidi3(uu.s.low, vv.s.low); + w.s.high += ((u32) uu.s.low * (u32) vv.s.high + + (u32) uu.s.high * (u32) vv.s.low); - return w.ll; + return w.ll; } - diff --git a/arch/arm/lib/ucmpdi2.c b/arch/arm/lib/ucmpdi2.c index 3eb438c065b3..57f3f2df3850 100644 --- a/arch/arm/lib/ucmpdi2.c +++ b/arch/arm/lib/ucmpdi2.c @@ -31,21 +31,19 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" -int -__ucmpdi2 (s64 a, s64 b) +int __ucmpdi2(s64 a, s64 b) { - DIunion au, bu; - - au.ll = a, bu.ll = b; - - if ((u32) au.s.high < (u32) bu.s.high) - return 0; - else if ((u32) au.s.high > (u32) bu.s.high) - return 2; - if ((u32) au.s.low < (u32) bu.s.low) - return 0; - else if ((u32) au.s.low > (u32) bu.s.low) - return 2; - return 1; + DIunion au, bu; + + au.ll = a, bu.ll = b; + + if ((u32) au.s.high < (u32) bu.s.high) + return 0; + else if ((u32) au.s.high > (u32) bu.s.high) + return 2; + if ((u32) au.s.low < (u32) bu.s.low) + return 0; + else if ((u32) au.s.low > (u32) bu.s.low) + return 2; + return 1; } - diff --git a/arch/arm/lib/udivdi3.c b/arch/arm/lib/udivdi3.c index df1d5ef62bc7..e343be4c6642 100644 --- a/arch/arm/lib/udivdi3.c +++ b/arch/arm/lib/udivdi3.c @@ -32,211 +32,191 @@ Boston, MA 02111-1307, USA. */ #include "gcclib.h" #include "longlong.h" -static const u8 __clz_tab[] = -{ - 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, - 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, +static const u8 __clz_tab[] = { + 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, }; -u64 -__udivmoddi4 (u64 n, u64 d, u64 *rp) +u64 __udivmoddi4(u64 n, u64 d, u64 * rp) { - DIunion ww; - DIunion nn, dd; - DIunion rr; - u32 d0, d1, n0, n1, n2; - u32 q0, q1; - u32 b, bm; - - nn.ll = n; - dd.ll = d; - - d0 = dd.s.low; - d1 = dd.s.high; - n0 = nn.s.low; - n1 = nn.s.high; - - if (d1 == 0) - { - if (d0 > n1) - { - /* 0q = nn / 0D */ - - count_leading_zeros (bm, d0); - - if (bm != 0) - { - /* Normalize, i.e. make the most significant bit of the - denominator set. */ - - d0 = d0 << bm; - n1 = (n1 << bm) | (n0 >> (SI_TYPE_SIZE - bm)); - n0 = n0 << bm; - } - - udiv_qrnnd (q0, n0, n1, n0, d0); - q1 = 0; - - /* Remainder in n0 >> bm. */ - } - else - { - /* qq = NN / 0d */ - - if (d0 == 0) - d0 = 1 / d0; /* Divide intentionally by zero. */ - - count_leading_zeros (bm, d0); - - if (bm == 0) - { - /* From (n1 >= d0) /\ (the most significant bit of d0 is set), - conclude (the most significant bit of n1 is set) /\ (the - leading quotient digit q1 = 1). - - This special case is necessary, not an optimization. - (Shifts counts of SI_TYPE_SIZE are undefined.) */ - - n1 -= d0; - q1 = 1; - } - else - { - /* Normalize. */ - - b = SI_TYPE_SIZE - bm; - - d0 = d0 << bm; - n2 = n1 >> b; - n1 = (n1 << bm) | (n0 >> b); - n0 = n0 << bm; - - udiv_qrnnd (q1, n1, n2, n1, d0); - } - - /* n1 != d0... */ - - udiv_qrnnd (q0, n0, n1, n0, d0); - - /* Remainder in n0 >> bm. */ - } - - if (rp != 0) - { - rr.s.low = n0 >> bm; - rr.s.high = 0; - *rp = rr.ll; - } - } - else - { - if (d1 > n1) - { - /* 00 = nn / DD */ - - q0 = 0; - q1 = 0; - - /* Remainder in n1n0. */ - if (rp != 0) - { - rr.s.low = n0; - rr.s.high = n1; - *rp = rr.ll; - } - } - else - { - /* 0q = NN / dd */ - - count_leading_zeros (bm, d1); - if (bm == 0) - { - /* From (n1 >= d1) /\ (the most significant bit of d1 is set), - conclude (the most significant bit of n1 is set) /\ (the - quotient digit q0 = 0 or 1). - - This special case is necessary, not an optimization. */ - - /* The condition on the next line takes advantage of that - n1 >= d1 (true due to program flow). */ - if (n1 > d1 || n0 >= d0) - { - q0 = 1; - sub_ddmmss (n1, n0, n1, n0, d1, d0); - } - else - q0 = 0; - - q1 = 0; - - if (rp != 0) - { - rr.s.low = n0; - rr.s.high = n1; - *rp = rr.ll; - } - } - else - { - u32 m1, m0; - /* Normalize. */ - - b = SI_TYPE_SIZE - bm; - - d1 = (d1 << bm) | (d0 >> b); - d0 = d0 << bm; - n2 = n1 >> b; - n1 = (n1 << bm) | (n0 >> b); - n0 = n0 << bm; - - udiv_qrnnd (q0, n1, n2, n1, d1); - umul_ppmm (m1, m0, q0, d0); - - if (m1 > n1 || (m1 == n1 && m0 > n0)) - { - q0--; - sub_ddmmss (m1, m0, m1, m0, d1, d0); - } - - q1 = 0; - - /* Remainder in (n1n0 - m1m0) >> bm. */ - if (rp != 0) - { - sub_ddmmss (n1, n0, n1, n0, m1, m0); - rr.s.low = (n1 << b) | (n0 >> bm); - rr.s.high = n1 >> bm; - *rp = rr.ll; - } - } - } - } - - ww.s.low = q0; - ww.s.high = q1; - return ww.ll; + DIunion ww; + DIunion nn, dd; + DIunion rr; + u32 d0, d1, n0, n1, n2; + u32 q0, q1; + u32 b, bm; + + nn.ll = n; + dd.ll = d; + + d0 = dd.s.low; + d1 = dd.s.high; + n0 = nn.s.low; + n1 = nn.s.high; + + if (d1 == 0) { + if (d0 > n1) { + /* 0q = nn / 0D */ + + count_leading_zeros(bm, d0); + + if (bm != 0) { + /* Normalize, i.e. make the most significant bit of the + denominator set. */ + + d0 = d0 << bm; + n1 = (n1 << bm) | (n0 >> (SI_TYPE_SIZE - bm)); + n0 = n0 << bm; + } + + udiv_qrnnd(q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0 >> bm. */ + } else { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + count_leading_zeros(bm, d0); + + if (bm == 0) { + /* From (n1 >= d0) /\ (the most significant bit of d0 is set), + conclude (the most significant bit of n1 is set) /\ (the + leading quotient digit q1 = 1). + + This special case is necessary, not an optimization. + (Shifts counts of SI_TYPE_SIZE are undefined.) */ + + n1 -= d0; + q1 = 1; + } else { + /* Normalize. */ + + b = SI_TYPE_SIZE - bm; + + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd(q1, n1, n2, n1, d0); + } + + /* n1 != d0... */ + + udiv_qrnnd(q0, n0, n1, n0, d0); + + /* Remainder in n0 >> bm. */ + } + + if (rp != 0) { + rr.s.low = n0 >> bm; + rr.s.high = 0; + *rp = rr.ll; + } + } else { + if (d1 > n1) { + /* 00 = nn / DD */ + + q0 = 0; + q1 = 0; + + /* Remainder in n1n0. */ + if (rp != 0) { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } else { + /* 0q = NN / dd */ + + count_leading_zeros(bm, d1); + if (bm == 0) { + /* From (n1 >= d1) /\ (the most significant bit of d1 is set), + conclude (the most significant bit of n1 is set) /\ (the + quotient digit q0 = 0 or 1). + + This special case is necessary, not an optimization. */ + + /* The condition on the next line takes advantage of that + n1 >= d1 (true due to program flow). */ + if (n1 > d1 || n0 >= d0) { + q0 = 1; + sub_ddmmss(n1, n0, n1, n0, d1, d0); + } else + q0 = 0; + + q1 = 0; + + if (rp != 0) { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } else { + u32 m1, m0; + /* Normalize. */ + + b = SI_TYPE_SIZE - bm; + + d1 = (d1 << bm) | (d0 >> b); + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd(q0, n1, n2, n1, d1); + umul_ppmm(m1, m0, q0, d0); + + if (m1 > n1 || (m1 == n1 && m0 > n0)) { + q0--; + sub_ddmmss(m1, m0, m1, m0, d1, d0); + } + + q1 = 0; + + /* Remainder in (n1n0 - m1m0) >> bm. */ + if (rp != 0) { + sub_ddmmss(n1, n0, n1, n0, m1, m0); + rr.s.low = (n1 << b) | (n0 >> bm); + rr.s.high = n1 >> bm; + *rp = rr.ll; + } + } + } + } + + ww.s.low = q0; + ww.s.high = q1; + return ww.ll; } -u64 -__udivdi3 (u64 n, u64 d) +u64 __udivdi3(u64 n, u64 d) { - return __udivmoddi4 (n, d, (u64 *) 0); + return __udivmoddi4(n, d, (u64 *) 0); } -u64 -__umoddi3 (u64 u, u64 v) +u64 __umoddi3(u64 u, u64 v) { - u64 w; + u64 w; - (void) __udivmoddi4 (u ,v, &w); + (void)__udivmoddi4(u, v, &w); - return w; + return w; } - -- cgit v1.2.3 From 14eb75b6f83e3213d752dfe821df2fa57efbe519 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 16:56:08 +0100 Subject: [PATCH] ARM: Add missed include for dmabounce.c Signed-off-by: Russell King --- arch/arm/common/dmabounce.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 39dd33ff6f37..9d63a01214eb 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -30,6 +30,8 @@ #include #include +#include + #undef DEBUG #undef STATS -- cgit v1.2.3 From a507ef3ac68f0671fdd3f824885cd7f1ea1040b1 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 16:57:17 +0100 Subject: [PATCH] ARM: Remove nmi_tick() from Integrator. Signed-off-by: Russell King --- arch/arm/mach-integrator/core.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index d302f0405fd2..bd1e5e3c9d34 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -227,7 +227,6 @@ integrator_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) * primary CPU */ if (hard_smp_processor_id() == 0) { - nmi_tick(); timer_tick(regs); #ifdef CONFIG_SMP smp_send_timer(); -- cgit v1.2.3 From 09f0551d20ddf6d22c333adcc59f2b1148734273 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Jun 2005 18:44:37 +0100 Subject: [PATCH] ARM: Add iomap support for ARM Signed-off-by: Russell King --- arch/arm/Kconfig | 4 ---- arch/arm/mm/ioremap.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ include/asm-arm/io.h | 27 +++++++++++++++++++++++++++ 3 files changed, 74 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 475950c8a831..1a1773f81393 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -67,10 +67,6 @@ config GENERIC_BUST_SPINLOCK config GENERIC_ISA_DMA bool -config GENERIC_IOMAP - bool - default y - config FIQ bool diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 00bb8fd37a59..7110e54182b1 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -170,3 +170,50 @@ void __iounmap(void __iomem *addr) vfree((void *) (PAGE_MASK & (unsigned long) addr)); } EXPORT_SYMBOL(__iounmap); + +#ifdef __io +void __iomem *ioport_map(unsigned long port, unsigned int nr) +{ + return __io(port); +} +EXPORT_SYMBOL(ioport_map); + +void ioport_unmap(void __iomem *addr) +{ +} +EXPORT_SYMBOL(ioport_unmap); +#endif + +#ifdef CONFIG_PCI +#include +#include + +void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +{ + unsigned long start = pci_resource_start(dev, bar); + unsigned long len = pci_resource_len(dev, bar); + unsigned long flags = pci_resource_flags(dev, bar); + + if (!len || !start) + return NULL; + if (maxlen && len > maxlen) + len = maxlen; + if (flags & IORESOURCE_IO) + return ioport_map(start, len); + if (flags & IORESOURCE_MEM) { + if (flags & IORESOURCE_CACHEABLE) + return ioremap(start, len); + return ioremap_nocache(start, len); + } + return NULL; +} +EXPORT_SYMBOL(pci_iomap); + +void pci_iounmap(struct pci_dev *dev, void __iomem *addr) +{ + if ((unsigned long)addr >= VMALLOC_START && + (unsigned long)addr < VMALLOC_END) + iounmap(addr); +} +EXPORT_SYMBOL(pci_iounmap); +#endif diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h index 658ffa384fda..08a46302d265 100644 --- a/include/asm-arm/io.h +++ b/include/asm-arm/io.h @@ -272,6 +272,33 @@ extern void __iounmap(void __iomem *addr); #define iounmap(cookie) __arch_iounmap(cookie) #endif +/* + * io{read,write}{8,16,32} macros + */ +#define ioread8(p) ({ unsigned int __v = __raw_readb(p); __v; }) +#define ioread16(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(p)); __v; }) +#define ioread32(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(p)); __v; }) + +#define iowrite8(v,p) __raw_writeb(v, p) +#define iowrite16(v,p) __raw_writew(cpu_to_le16(v), p) +#define iowrite32(v,p) __raw_writel(cpu_to_le32(v), p) + +#define ioread8_rep(p,d,c) __raw_readsb(p,d,c) +#define ioread16_rep(p,d,c) __raw_readsw(p,d,c) +#define ioread32_rep(p,d,c) __raw_readsl(p,d,c) + +#define iowrite8_rep(p,s,c) __raw_writesb(p,s,c) +#define iowrite16_rep(p,s,c) __raw_writesw(p,s,c) +#define iowrite32_rep(p,s,c) __raw_writesl(p,s,c) + +extern void __iomem *ioport_map(unsigned long port, unsigned int nr); +extern void ioport_unmap(void __iomem *addr); + +struct pci_dev; + +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen); +extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); + /* * can the hardware map this into one segment or not, given no other * constraints. -- cgit v1.2.3 From 038c5b602524b33447008492e932cdd0a1e806c9 Mon Sep 17 00:00:00 2001 From: Bellido Nicolas Date: Mon, 20 Jun 2005 18:51:05 +0100 Subject: [PATCH] ARM: 2686/2: AAEC-2000 Core support Patch from Bellido Nicolas Core support for AAEC-2000 based platforms. This is an updated version of the previous patch, and takes into account Russell's comments. AAED-2000 default configuration will follow as soon as some problems with the bootloader are sorted out... Signed-off-by: Nicolas Bellido Signed-off-by: Russell King --- arch/arm/Kconfig | 7 ++ arch/arm/Makefile | 1 + arch/arm/mach-aaec2000/Kconfig | 11 ++ arch/arm/mach-aaec2000/Makefile | 9 ++ arch/arm/mach-aaec2000/aaed2000.c | 48 +++++++++ arch/arm/mach-aaec2000/core.c | 157 ++++++++++++++++++++++++++++ arch/arm/mach-aaec2000/core.h | 16 +++ arch/arm/mm/Kconfig | 2 +- include/asm-arm/arch-aaec2000/aaec2000.h | 151 ++++++++++++++++++++++++++ include/asm-arm/arch-aaec2000/debug-macro.S | 36 +++++++ include/asm-arm/arch-aaec2000/dma.h | 17 +++ include/asm-arm/arch-aaec2000/entry-macro.S | 33 ++++++ include/asm-arm/arch-aaec2000/hardware.h | 49 +++++++++ include/asm-arm/arch-aaec2000/io.h | 19 ++++ include/asm-arm/arch-aaec2000/irqs.h | 46 ++++++++ include/asm-arm/arch-aaec2000/memory.h | 73 +++++++++++++ include/asm-arm/arch-aaec2000/param.h | 15 +++ include/asm-arm/arch-aaec2000/system.h | 24 +++++ include/asm-arm/arch-aaec2000/timex.h | 18 ++++ include/asm-arm/arch-aaec2000/uncompress.h | 47 +++++++++ include/asm-arm/arch-aaec2000/vmalloc.h | 16 +++ 21 files changed, 794 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-aaec2000/Kconfig create mode 100644 arch/arm/mach-aaec2000/Makefile create mode 100644 arch/arm/mach-aaec2000/aaed2000.c create mode 100644 arch/arm/mach-aaec2000/core.c create mode 100644 arch/arm/mach-aaec2000/core.h create mode 100644 include/asm-arm/arch-aaec2000/aaec2000.h create mode 100644 include/asm-arm/arch-aaec2000/debug-macro.S create mode 100644 include/asm-arm/arch-aaec2000/dma.h create mode 100644 include/asm-arm/arch-aaec2000/entry-macro.S create mode 100644 include/asm-arm/arch-aaec2000/hardware.h create mode 100644 include/asm-arm/arch-aaec2000/io.h create mode 100644 include/asm-arm/arch-aaec2000/irqs.h create mode 100644 include/asm-arm/arch-aaec2000/memory.h create mode 100644 include/asm-arm/arch-aaec2000/param.h create mode 100644 include/asm-arm/arch-aaec2000/system.h create mode 100644 include/asm-arm/arch-aaec2000/timex.h create mode 100644 include/asm-arm/arch-aaec2000/uncompress.h create mode 100644 include/asm-arm/arch-aaec2000/vmalloc.h (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1a1773f81393..efdb12d73566 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -198,6 +198,11 @@ config ARCH_H720X help This enables support for systems based on the Hynix HMS720x +config ARCH_AAEC2000 + bool "Agilent AAEC-2000 based" + help + This enables support for systems based on the Agilent AAEC-2000 + endchoice source "arch/arm/mach-clps711x/Kconfig" @@ -230,6 +235,8 @@ source "arch/arm/mach-h720x/Kconfig" source "arch/arm/mach-versatile/Kconfig" +source "arch/arm/mach-aaec2000/Kconfig" + # Definitions to make life easier config ARCH_ACORN bool diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 2277e3d179cc..8330495e2448 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -97,6 +97,7 @@ textaddr-$(CONFIG_ARCH_FORTUNET) := 0xc0008000 machine-$(CONFIG_ARCH_VERSATILE) := versatile machine-$(CONFIG_ARCH_IMX) := imx machine-$(CONFIG_ARCH_H720X) := h720x + machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 ifeq ($(CONFIG_ARCH_EBSA110),y) # This is what happens if you forget the IOCS16 line. diff --git a/arch/arm/mach-aaec2000/Kconfig b/arch/arm/mach-aaec2000/Kconfig new file mode 100644 index 000000000000..5e4bef93754c --- /dev/null +++ b/arch/arm/mach-aaec2000/Kconfig @@ -0,0 +1,11 @@ +if ARCH_AAEC2000 + +menu "Agilent AAEC-2000 Implementations" + +config MACH_AAED2000 + bool "Agilent AAED-2000 Development Platform" + select CPU_ARM920T + +endmenu + +endif diff --git a/arch/arm/mach-aaec2000/Makefile b/arch/arm/mach-aaec2000/Makefile new file mode 100644 index 000000000000..20ec83896c37 --- /dev/null +++ b/arch/arm/mach-aaec2000/Makefile @@ -0,0 +1,9 @@ +# +# Makefile for the linux kernel. +# + +# Common support (must be linked before board specific support) +obj-y += core.o + +# Specific board support +obj-$(CONFIG_MACH_AAED2000) += aaed2000.o diff --git a/arch/arm/mach-aaec2000/aaed2000.c b/arch/arm/mach-aaec2000/aaed2000.c new file mode 100644 index 000000000000..5417ca3f4621 --- /dev/null +++ b/arch/arm/mach-aaec2000/aaed2000.c @@ -0,0 +1,48 @@ +/* + * linux/arch/arm/mach-aaec2000/aaed2000.c + * + * Support for the Agilent AAED-2000 Development Platform. + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "core.h" + +static void __init aaed2000_init_irq(void) +{ + aaec2000_init_irq(); +} + +static void __init aaed2000_map_io(void) +{ + aaec2000_map_io(); +} + +MACHINE_START(AAED2000, "Agilent AAED-2000 Development Platform") + MAINTAINER("Nicolas Bellido Y Ortega") + BOOT_MEM(0xf0000000, PIO_BASE, VIO_BASE) + MAPIO(aaed2000_map_io) + INITIRQ(aaed2000_init_irq) + .timer = &aaec2000_timer, +MACHINE_END diff --git a/arch/arm/mach-aaec2000/core.c b/arch/arm/mach-aaec2000/core.c new file mode 100644 index 000000000000..fc145b3768fa --- /dev/null +++ b/arch/arm/mach-aaec2000/core.c @@ -0,0 +1,157 @@ +/* + * linux/arch/arm/mach-aaec2000/core.c + * + * Code common to all AAEC-2000 machines + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include + +/* + * Common I/O mapping: + * + * Static virtual address mappings are as follow: + * + * 0xf8000000-0xf8001ffff: Devices connected to APB bus + * 0xf8002000-0xf8003ffff: Devices connected to AHB bus + * + * Below 0xe8000000 is reserved for vm allocation. + * + * The machine specific code must provide the extra mapping beside the + * default mapping provided here. + */ +static struct map_desc standard_io_desc[] __initdata = { + /* virtual physical length type */ + { VIO_APB_BASE, PIO_APB_BASE, IO_APB_LENGTH, MT_DEVICE }, + { VIO_AHB_BASE, PIO_AHB_BASE, IO_AHB_LENGTH, MT_DEVICE } +}; + +void __init aaec2000_map_io(void) +{ + iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); +} + +/* + * Interrupt handling routines + */ +static void aaec2000_int_ack(unsigned int irq) +{ + IRQ_INTSR = 1 << irq; +} + +static void aaec2000_int_mask(unsigned int irq) +{ + IRQ_INTENC |= (1 << irq); +} + +static void aaec2000_int_unmask(unsigned int irq) +{ + IRQ_INTENS |= (1 << irq); +} + +static struct irqchip aaec2000_irq_chip = { + .ack = aaec2000_int_ack, + .mask = aaec2000_int_mask, + .unmask = aaec2000_int_unmask, +}; + +void __init aaec2000_init_irq(void) +{ + unsigned int i; + + for (i = 0; i < NR_IRQS; i++) { + set_irq_handler(i, do_level_IRQ); + set_irq_chip(i, &aaec2000_irq_chip); + set_irq_flags(i, IRQF_VALID); + } + + /* Disable all interrupts */ + IRQ_INTENC = 0xffffffff; + + /* Clear any pending interrupts */ + IRQ_INTSR = IRQ_INTSR; +} + +/* + * Time keeping + */ +/* IRQs are disabled before entering here from do_gettimeofday() */ +static unsigned long aaec2000_gettimeoffset(void) +{ + unsigned long ticks_to_match, elapsed, usec; + + /* Get ticks before next timer match */ + ticks_to_match = TIMER1_LOAD - TIMER1_VAL; + + /* We need elapsed ticks since last match */ + elapsed = LATCH - ticks_to_match; + + /* Now, convert them to usec */ + usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH; + + return usec; +} + +/* We enter here with IRQs enabled */ +static irqreturn_t +aaec2000_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + /* TODO: Check timer accuracy */ + write_seqlock(&xtime_lock); + + timer_tick(regs); + TIMER1_CLEAR = 1; + + write_sequnlock(&xtime_lock); + + return IRQ_HANDLED; +} + +static struct irqaction aaec2000_timer_irq = { + .name = "AAEC-2000 Timer Tick", + .flags = SA_INTERRUPT, + .handler = aaec2000_timer_interrupt +}; + +static void __init aaec2000_timer_init(void) +{ + /* Disable timer 1 */ + TIMER1_CTRL = 0; + + /* We have somehow to generate a 100Hz clock. + * We then use the 508KHz timer in periodic mode. + */ + TIMER1_LOAD = LATCH; + TIMER1_CLEAR = 1; /* Clear interrupt */ + + setup_irq(INT_TMR1_OFL, &aaec2000_timer_irq); + + TIMER1_CTRL = TIMER_CTRL_ENABLE | + TIMER_CTRL_PERIODIC | + TIMER_CTRL_CLKSEL_508K; +} + +struct sys_timer aaec2000_timer = { + .init = aaec2000_timer_init, + .offset = aaec2000_gettimeoffset, +}; + diff --git a/arch/arm/mach-aaec2000/core.h b/arch/arm/mach-aaec2000/core.h new file mode 100644 index 000000000000..91893d848c16 --- /dev/null +++ b/arch/arm/mach-aaec2000/core.h @@ -0,0 +1,16 @@ +/* + * linux/arch/arm/mach-aaec2000/core.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +struct sys_timer; + +extern struct sys_timer aaec2000_timer; +extern void __init aaec2000_map_io(void); +extern void __init aaec2000_init_irq(void); diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 3fefb43c67f7..95606b4a3ba6 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -62,7 +62,7 @@ config CPU_ARM720T # ARM920T config CPU_ARM920T bool "Support ARM920T processor" if !ARCH_S3C2410 - depends on ARCH_INTEGRATOR || ARCH_S3C2410 || ARCH_IMX + depends on ARCH_INTEGRATOR || ARCH_S3C2410 || ARCH_IMX || ARCH_AAEC2000 default y if ARCH_S3C2410 select CPU_32v4 select CPU_ABRT_EV4T diff --git a/include/asm-arm/arch-aaec2000/aaec2000.h b/include/asm-arm/arch-aaec2000/aaec2000.h new file mode 100644 index 000000000000..0e9b7e18af05 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/aaec2000.h @@ -0,0 +1,151 @@ +/* + * linux/include/asm-arm/arch-aaec2000/aaec2000.h + * + * AAEC-2000 registers definition + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_AAEC2000_H +#define __ASM_ARCH_AAEC2000_H + +#ifndef __ASM_ARCH_HARDWARE_H +#error You must include hardware.h not this file +#endif /* __ASM_ARCH_HARDWARE_H */ + +/* Interrupt controller */ +#define IRQ_BASE __REG(0x80000500) +#define IRQ_INTSR __REG(0x80000500) /* Int Status Register */ +#define IRQ_INTRSR __REG(0x80000504) /* Int Raw (unmasked) Status */ +#define IRQ_INTENS __REG(0x80000508) /* Int Enable Set */ +#define IRQ_INTENC __REG(0x8000050c) /* Int Enable Clear */ + +/* UART 1 */ +#define UART1_BASE __REG(0x80000600) +#define UART1_DR __REG(0x80000600) /* Data/FIFO Register */ +#define UART1_LCR __REG(0x80000604) /* Link Control Register */ +#define UART1_BRCR __REG(0x80000608) /* Baud Rate Control Register */ +#define UART1_CR __REG(0x8000060c) /* Control Register */ +#define UART1_SR __REG(0x80000610) /* Status Register */ +#define UART1_INT __REG(0x80000614) /* Interrupt Status Register */ +#define UART1_INTM __REG(0x80000618) /* Interrupt Mask Register */ +#define UART1_INTRES __REG(0x8000061c) /* Int Result (masked status) Register */ + +/* UART 2 */ +#define UART2_BASE __REG(0x80000700) +#define UART2_DR __REG(0x80000700) /* Data/FIFO Register */ +#define UART2_LCR __REG(0x80000704) /* Link Control Register */ +#define UART2_BRCR __REG(0x80000708) /* Baud Rate Control Register */ +#define UART2_CR __REG(0x8000070c) /* Control Register */ +#define UART2_SR __REG(0x80000710) /* Status Register */ +#define UART2_INT __REG(0x80000714) /* Interrupt Status Register */ +#define UART2_INTM __REG(0x80000718) /* Interrupt Mask Register */ +#define UART2_INTRES __REG(0x8000071c) /* Int Result (masked status) Register */ + +/* UART 3 */ +#define UART3_BASE __REG(0x80000800) +#define UART3_DR __REG(0x80000800) /* Data/FIFO Register */ +#define UART3_LCR __REG(0x80000804) /* Link Control Register */ +#define UART3_BRCR __REG(0x80000808) /* Baud Rate Control Register */ +#define UART3_CR __REG(0x8000080c) /* Control Register */ +#define UART3_SR __REG(0x80000810) /* Status Register */ +#define UART3_INT __REG(0x80000814) /* Interrupt Status Register */ +#define UART3_INTM __REG(0x80000818) /* Interrupt Mask Register */ +#define UART3_INTRES __REG(0x8000081c) /* Int Result (masked status) Register */ + +/* These are used in some places */ +#define _UART1_BASE __PREG(UART1_BASE) +#define _UART2_BASE __PREG(UART2_BASE) +#define _UART3_BASE __PREG(UART3_BASE) + +/* UART Registers Offsets */ +#define UART_DR 0x00 +#define UART_LCR 0x04 +#define UART_BRCR 0x08 +#define UART_CR 0x0c +#define UART_SR 0x10 +#define UART_INT 0x14 +#define UART_INTM 0x18 +#define UART_INTRES 0x1c + +/* UART_LCR Bitmask */ +#define UART_LCR_BRK (1 << 0) /* Send Break */ +#define UART_LCR_PEN (1 << 1) /* Parity Enable */ +#define UART_LCR_EP (1 << 2) /* Even/Odd Parity */ +#define UART_LCR_S2 (1 << 3) /* One/Two Stop bits */ +#define UART_LCR_FIFO (1 << 4) /* FIFO Enable */ +#define UART_LCR_WL5 (0 << 5) /* Word Length - 5 bits */ +#define UART_LCR_WL6 (1 << 5) /* Word Length - 6 bits */ +#define UART_LCR_WL7 (1 << 6) /* Word Length - 7 bits */ +#define UART_LCR_WL8 (1 << 7) /* Word Length - 8 bits */ + +/* UART_CR Bitmask */ +#define UART_CR_EN (1 << 0) /* UART Enable */ +#define UART_CR_SIR (1 << 1) /* IrDA SIR Enable */ +#define UART_CR_SIRLP (1 << 2) /* Low Power IrDA Enable */ +#define UART_CR_RXP (1 << 3) /* Receive Pin Polarity */ +#define UART_CR_TXP (1 << 4) /* Transmit Pin Polarity */ +#define UART_CR_MXP (1 << 5) /* Modem Pin Polarity */ +#define UART_CR_LOOP (1 << 6) /* Loopback Mode */ + +/* UART_SR Bitmask */ +#define UART_SR_CTS (1 << 0) /* Clear To Send Status */ +#define UART_SR_DSR (1 << 1) /* Data Set Ready Status */ +#define UART_SR_DCD (1 << 2) /* Data Carrier Detect Status */ +#define UART_SR_TxBSY (1 << 3) /* Transmitter Busy Status */ +#define UART_SR_RxFE (1 << 4) /* Receive FIFO Empty Status */ +#define UART_SR_TxFF (1 << 5) /* Transmit FIFO Full Status */ +#define UART_SR_RxFF (1 << 6) /* Receive FIFO Full Status */ +#define UART_SR_TxFE (1 << 7) /* Transmit FIFO Empty Status */ + +/* UART_INT Bitmask */ +#define UART_INT_RIS (1 << 0) /* Rx Interrupt */ +#define UART_INT_TIS (1 << 1) /* Tx Interrupt */ +#define UART_INT_MIS (1 << 2) /* Modem Interrupt */ +#define UART_INT_RTIS (1 << 3) /* Receive Timeout Interrupt */ + +/* Timer 1 */ +#define TIMER1_BASE __REG(0x80000c00) +#define TIMER1_LOAD __REG(0x80000c00) /* Timer 1 Load Register */ +#define TIMER1_VAL __REG(0x80000c04) /* Timer 1 Value Register */ +#define TIMER1_CTRL __REG(0x80000c08) /* Timer 1 Control Register */ +#define TIMER1_CLEAR __REG(0x80000c0c) /* Timer 1 Clear Register */ + +/* Timer 2 */ +#define TIMER2_BASE __REG(0x80000d00) +#define TIMER2_LOAD __REG(0x80000d00) /* Timer 2 Load Register */ +#define TIMER2_VAL __REG(0x80000d04) /* Timer 2 Value Register */ +#define TIMER2_CTRL __REG(0x80000d08) /* Timer 2 Control Register */ +#define TIMER2_CLEAR __REG(0x80000d0c) /* Timer 2 Clear Register */ + +/* Timer 3 */ +#define TIMER3_BASE __REG(0x80000e00) +#define TIMER3_LOAD __REG(0x80000e00) /* Timer 3 Load Register */ +#define TIMER3_VAL __REG(0x80000e04) /* Timer 3 Value Register */ +#define TIMER3_CTRL __REG(0x80000e08) /* Timer 3 Control Register */ +#define TIMER3_CLEAR __REG(0x80000e0c) /* Timer 3 Clear Register */ + +/* Timer Control register bits */ +#define TIMER_CTRL_ENABLE (1 << 7) /* Enable (Start° Timer */ +#define TIMER_CTRL_PERIODIC (1 << 6) /* Periodic Running Mode */ +#define TIMER_CTRL_FREE_RUNNING (0 << 6) /* Normal Running Mode */ +#define TIMER_CTRL_CLKSEL_508K (1 << 3) /* 508KHz Clock select (Timer 1, 2) */ +#define TIMER_CTRL_CLKSEL_2K (0 << 3) /* 2KHz Clock Select (Timer 1, 2)*/ + +/* Power and State Control */ +#define POWER_BASE __REG(0x80000400) +#define POWER_PWRSR __REG(0x80000400) /* Power Status Register */ +#define POWER_PWRCNT __REG(0x80000404) /* Power/Clock control */ +#define POWER_HALT __REG(0x80000408) /* Power Idle Mode */ +#define POWER_STDBY __REG(0x8000040c) /* Power Standby Mode */ +#define POWER_BLEOI __REG(0x80000410) /* Battery Low End of Interrupt */ +#define POWER_MCEOI __REG(0x80000414) /* Media Changed EoI */ +#define POWER_TEOI __REG(0x80000418) /* Tick EoI */ +#define POWER_STFCLR __REG(0x8000041c) /* NbFlg, RSTFlg, PFFlg, CLDFlg Clear */ +#define POWER_CLKSET __REG(0x80000420) /* Clock Speed Control */ + +#endif /* __ARM_ARCH_AAEC2000_H */ diff --git a/include/asm-arm/arch-aaec2000/debug-macro.S b/include/asm-arm/arch-aaec2000/debug-macro.S new file mode 100644 index 000000000000..e4f1fa539a74 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/debug-macro.S @@ -0,0 +1,36 @@ +/* linux/include/asm-arm/arch-aaec2000/debug-macro.S + * + * Debugging macro include header + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + .macro addruart,rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + moveq \rx, #0x80000000 @ physical + movne \rx, #io_p2v(0x80000000) @ virtual + orr \rx, \rx, #0x00000800 + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #0] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #0x10] + tst \rd, #(1 << 7) + beq 1002b + .endm + + .macro waituart,rd,rx +#if 0 +1001: ldr \rd, [\rx, #0x10] + tst \rd, #(1 << 5) + beq 1001b +#endif + .endm diff --git a/include/asm-arm/arch-aaec2000/dma.h b/include/asm-arm/arch-aaec2000/dma.h new file mode 100644 index 000000000000..28c890b4a1d3 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/dma.h @@ -0,0 +1,17 @@ +/* + * linux/include/asm-arm/arch-aaec2000/dma.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_DMA_H +#define __ASM_ARCH_DMA_H + +#define MAX_DMA_ADDRESS 0xffffffff +#define MAX_DMA_CHANNELS 0 + +#endif diff --git a/include/asm-arm/arch-aaec2000/entry-macro.S b/include/asm-arm/arch-aaec2000/entry-macro.S new file mode 100644 index 000000000000..df31313ab07e --- /dev/null +++ b/include/asm-arm/arch-aaec2000/entry-macro.S @@ -0,0 +1,33 @@ +/* + * linux/include/asm-arm/arch-aaec2000/entry-macro.S + * + * Low-level IRQ helper for aaec-2000 based platforms + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + + .macro disable_fiq + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + mov r4, #0xf8000000 + add r4, r4, #0x00000500 + mov \base, r4 + ldr \irqstat, [\base, #0] + cmp \irqstat, #0 + bne 1001f + ldr \irqnr, =NR_IRQS+1 + b 1003f +1001: mov \irqnr, #0 +1002: ands \tmp, \irqstat, #1 + mov \irqstat, \irqstat, LSR #1 + add \irqnr, \irqnr, #1 + beq 1002b + sub \irqnr, \irqnr, #1 +1003: + .endm diff --git a/include/asm-arm/arch-aaec2000/hardware.h b/include/asm-arm/arch-aaec2000/hardware.h new file mode 100644 index 000000000000..4c37219e030e --- /dev/null +++ b/include/asm-arm/arch-aaec2000/hardware.h @@ -0,0 +1,49 @@ +/* + * linux/include/asm-arm/arch-aaec2000/hardware.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#include + +/* The kernel is loaded at physical address 0xf8000000. + * We map the IO space a bit after + */ +#define PIO_APB_BASE 0x80000000 +#define VIO_APB_BASE 0xf8000000 +#define IO_APB_LENGTH 0x2000 +#define PIO_AHB_BASE 0x80002000 +#define VIO_AHB_BASE 0xf8002000 +#define IO_AHB_LENGTH 0x2000 + +#define VIO_BASE VIO_APB_BASE +#define PIO_BASE PIO_APB_BASE + +#define io_p2v(x) ( (x) - PIO_BASE + VIO_BASE ) +#define io_v2p(x) ( (x) + PIO_BASE - VIO_BASE ) + +#ifndef __ASSEMBLY__ + +#include + +/* FIXME: Is it needed to optimize this a la pxa ?? */ +#define __REG(x) (*((volatile u32 *)io_p2v(x))) +#define __PREG(x) (io_v2p((u32)&(x))) + +#else /* __ASSEMBLY__ */ + +#define __REG(x) io_p2v(x) +#define __PREG(x) io_v2p(x) + +#endif + +#include "aaec2000.h" + +#endif /* __ASM_ARCH_HARDWARE_H */ diff --git a/include/asm-arm/arch-aaec2000/io.h b/include/asm-arm/arch-aaec2000/io.h new file mode 100644 index 000000000000..c58a8d10425a --- /dev/null +++ b/include/asm-arm/arch-aaec2000/io.h @@ -0,0 +1,19 @@ +/* + * linux/include/asm-arm/arch-aaec2000/io.h + * + * Copied from asm/arch/sa1100/io.h + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +/* + * We don't actually have real ISA nor PCI buses, but there is so many + * drivers out there that might just work if we fake them... + */ +#define __io(a) ((void __iomem *)(a)) +#define __mem_pci(a) (a) +#define __mem_isa(a) (a) + +#endif diff --git a/include/asm-arm/arch-aaec2000/irqs.h b/include/asm-arm/arch-aaec2000/irqs.h new file mode 100644 index 000000000000..de252220e806 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/irqs.h @@ -0,0 +1,46 @@ +/* + * linux/include/asm-arm/arch-aaec2000/irqs.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_IRQS_H +#define __ASM_ARCH_IRQS_H + + +#define INT_GPIOF0_FIQ 0 /* External GPIO Port F O Fast Interrupt Input */ +#define INT_BL_FIQ 1 /* Battery Low Fast Interrupt */ +#define INT_WE_FIQ 2 /* Watchdog Expired Fast Interrupt */ +#define INT_MV_FIQ 3 /* Media Changed Interrupt */ +#define INT_SC 4 /* Sound Codec Interrupt */ +#define INT_GPIO1 5 /* GPIO Port F Configurable Int 1 */ +#define INT_GPIO2 6 /* GPIO Port F Configurable Int 2 */ +#define INT_GPIO3 7 /* GPIO Port F Configurable Int 3 */ +#define INT_TMR1_OFL 8 /* Timer 1 Overflow Interrupt */ +#define INT_TMR2_OFL 9 /* Timer 2 Overflow Interrupt */ +#define INT_RTC_CM 10 /* RTC Compare Match Interrupt */ +#define INT_TICK 11 /* 64Hz Tick Interrupt */ +#define INT_UART1 12 /* UART1 Interrupt */ +#define INT_UART2 13 /* UART2 & Modem State Changed Interrupt */ +#define INT_LCD 14 /* LCD Interrupt */ +#define INT_SSI 15 /* SSI End of Transfer Interrupt */ +#define INT_UART3 16 /* UART3 Interrupt */ +#define INT_SCI 17 /* SCI Interrupt */ +#define INT_AAC 18 /* Advanced Audio Codec Interrupt */ +#define INT_MMC 19 /* MMC Interrupt */ +#define INT_USB 20 /* USB Interrupt */ +#define INT_DMA 21 /* DMA Interrupt */ +#define INT_TMR3_UOFL 22 /* Timer 3 Underflow Interrupt */ +#define INT_GPIO4 23 /* GPIO Port F Configurable Int 4 */ +#define INT_GPIO5 24 /* GPIO Port F Configurable Int 4 */ +#define INT_GPIO6 25 /* GPIO Port F Configurable Int 4 */ +#define INT_GPIO7 26 /* GPIO Port F Configurable Int 4 */ +#define INT_BMI 27 /* BMI Interrupt */ + +#define NR_IRQS (INT_BMI + 1) + +#endif /* __ASM_ARCH_IRQS_H */ diff --git a/include/asm-arm/arch-aaec2000/memory.h b/include/asm-arm/arch-aaec2000/memory.h new file mode 100644 index 000000000000..681b6a6171a1 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/memory.h @@ -0,0 +1,73 @@ +/* + * linux/include/asm-arm/arch-aaec2000/memory.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#include + +#define PHYS_OFFSET (0xf0000000UL) + +#define __virt_to_bus(x) __virt_to_phys(x) +#define __bus_to_virt(x) __phys_to_virt(x) + +#ifdef CONFIG_DISCONTIGMEM + +/* + * The nodes are the followings: + * + * node 0: 0xf000.0000 - 0xf3ff.ffff + * node 1: 0xf400.0000 - 0xf7ff.ffff + * node 2: 0xf800.0000 - 0xfbff.ffff + * node 3: 0xfc00.0000 - 0xffff.ffff + */ + +/* + * Given a kernel address, find the home node of the underlying memory. + */ +#define KVADDR_TO_NID(addr) \ + (((unsigned long)(addr) - PAGE_OFFSET) >> NODE_MAX_MEM_SHIFT) + +/* + * Given a page frame number, convert it to a node id. + */ +#define PFN_TO_NID(pfn) \ + (((pfn) - PHYS_PFN_OFFSET) >> (NODE_MAX_MEM_SHIFT - PAGE_SHIFT)) + +/* + * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory + * and return the mem_map of that node. + */ +#define ADDR_TO_MAPBASE(kaddr) NODE_MEM_MAP(KVADDR_TO_NID(kaddr)) + +/* + * Given a page frame number, find the owning node of the memory + * and return the mem_map of that node. + */ +#define PFN_TO_MAPBASE(pfn) NODE_MEM_MAP(PFN_TO_NID(pfn)) + +/* + * Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory + * and returns the index corresponding to the appropriate page in the + * node's mem_map. + */ +#define LOCAL_MAP_NR(addr) \ + (((unsigned long)(addr) & (NODE_MAX_MEM_SIZE - 1)) >> PAGE_SHIFT) + +#define NODE_MAX_MEM_SHIFT 26 +#define NODE_MAX_MEM_SIZE (1 << NODE_MAX_MEM_SHIFT) + +#else + +#define PFN_TO_NID(addr) (0) + +#endif /* CONFIG_DISCONTIGMEM */ + +#endif /* __ASM_ARCH_MEMORY_H */ diff --git a/include/asm-arm/arch-aaec2000/param.h b/include/asm-arm/arch-aaec2000/param.h new file mode 100644 index 000000000000..139936c2faf2 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/param.h @@ -0,0 +1,15 @@ +/* + * linux/include/asm-arm/arch-aaec2000/param.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_PARAM_H +#define __ASM_ARCH_PARAM_H + +#endif /* __ASM_ARCH_PARAM_H */ + diff --git a/include/asm-arm/arch-aaec2000/system.h b/include/asm-arm/arch-aaec2000/system.h new file mode 100644 index 000000000000..08de97b407a8 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/system.h @@ -0,0 +1,24 @@ +/* + * linux/include/asm-arm/arch-aaed2000/system.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_SYSTEM_H +#define __ASM_ARCH_SYSTEM_H + +static inline void arch_idle(void) +{ + cpu_do_idle(); +} + +static inline void arch_reset(char mode) +{ + cpu_reset(0); +} + +#endif /* __ASM_ARCH_SYSTEM_H */ diff --git a/include/asm-arm/arch-aaec2000/timex.h b/include/asm-arm/arch-aaec2000/timex.h new file mode 100644 index 000000000000..f5708b38fb7f --- /dev/null +++ b/include/asm-arm/arch-aaec2000/timex.h @@ -0,0 +1,18 @@ +/* + * linux/include/asm-arm/arch-aaec2000/timex.h + * + * AAEC-2000 Architecture timex specification + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_TIMEX_H +#define __ASM_ARCH_TIMEX_H + +#define CLOCK_TICK_RATE 508000 + +#endif /* __ASM_ARCH_TIMEX_H */ diff --git a/include/asm-arm/arch-aaec2000/uncompress.h b/include/asm-arm/arch-aaec2000/uncompress.h new file mode 100644 index 000000000000..fff0c94b75c4 --- /dev/null +++ b/include/asm-arm/arch-aaec2000/uncompress.h @@ -0,0 +1,47 @@ +/* + * linux/include/asm-arm/arch-aaec2000/uncompress.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_UNCOMPRESS_H +#define __ASM_ARCH_UNCOMPRESS_H + +#include "hardware.h" + +#define UART(x) (*(volatile unsigned long *)(serial_port + (x))) + +static void putstr( const char *s ) +{ + unsigned long serial_port; + do { + serial_port = _UART3_BASE; + if (UART(UART_CR) & UART_CR_EN) break; + serial_port = _UART1_BASE; + if (UART(UART_CR) & UART_CR_EN) break; + serial_port = _UART2_BASE; + if (UART(UART_CR) & UART_CR_EN) break; + return; + } while (0); + + for (; *s; s++) { + /* wait for space in the UART's transmitter */ + while ((UART(UART_SR) & UART_SR_TxFF)); + /* send the character out. */ + UART(UART_DR) = *s; + /* if a LF, also do CR... */ + if (*s == 10) { + while ((UART(UART_SR) & UART_SR_TxFF)); + UART(UART_DR) = 13; + } + } +} + +#define arch_decomp_setup() +#define arch_decomp_wdog() + +#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/include/asm-arm/arch-aaec2000/vmalloc.h b/include/asm-arm/arch-aaec2000/vmalloc.h new file mode 100644 index 000000000000..ecb991e2e4ff --- /dev/null +++ b/include/asm-arm/arch-aaec2000/vmalloc.h @@ -0,0 +1,16 @@ +/* + * linux/include/asm-arm/arch-aaec2000/vmalloc.h + * + * Copyright (c) 2005 Nicolas Bellido Y Ortega + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_VMALLOC_H +#define __ASM_ARCH_VMALLOC_H + +#define VMALLOC_END (PAGE_OFFSET + 0x10000000) + +#endif /* __ASM_ARCH_VMALLOC_H */ -- cgit v1.2.3 From c0da085ad2e6b1419b8a7439538f7f15eb5c4777 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 20 Jun 2005 18:51:06 +0100 Subject: [PATCH] ARM: 2693/1: Add PCI support for Versatile/PB Patch from Catalin Marinas This patch adds PCI support for the Versatile PB926 platform. Signed-off-by: Colin King Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/Kconfig | 2 +- arch/arm/mach-versatile/Makefile | 1 + arch/arm/mach-versatile/core.c | 14 +- arch/arm/mach-versatile/pci.c | 360 ++++++++++++++++++++++++++++++ include/asm-arm/arch-versatile/hardware.h | 27 ++- include/asm-arm/arch-versatile/io.h | 2 +- include/asm-arm/arch-versatile/platform.h | 17 +- 7 files changed, 404 insertions(+), 19 deletions(-) create mode 100644 arch/arm/mach-versatile/pci.c (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index efdb12d73566..ee8a9ad7bbd9 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -280,7 +280,7 @@ config ISA_DMA_API default y config PCI - bool "PCI support" if ARCH_INTEGRATOR_AP + bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/arm/mach-versatile/Makefile b/arch/arm/mach-versatile/Makefile index 5d608837757a..ba81e70ed813 100644 --- a/arch/arm/mach-versatile/Makefile +++ b/arch/arm/mach-versatile/Makefile @@ -5,3 +5,4 @@ obj-y := core.o clock.o obj-$(CONFIG_ARCH_VERSATILE_PB) += versatile_pb.o obj-$(CONFIG_MACH_VERSATILE_AB) += versatile_ab.o +obj-$(CONFIG_PCI) += pci.o diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 302c2a7b9b63..6a7cbea5e098 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -196,11 +196,15 @@ static struct map_desc versatile_io_desc[] __initdata = { #ifdef CONFIG_DEBUG_LL { IO_ADDRESS(VERSATILE_UART0_BASE), VERSATILE_UART0_BASE, SZ_4K, MT_DEVICE }, #endif -#ifdef FIXME - { PCI_MEMORY_VADDR, PHYS_PCI_MEM_BASE, SZ_16M, MT_DEVICE }, - { PCI_CONFIG_VADDR, PHYS_PCI_CONFIG_BASE, SZ_16M, MT_DEVICE }, - { PCI_V3_VADDR, PHYS_PCI_V3_BASE, SZ_512K, MT_DEVICE }, - { PCI_IO_VADDR, PHYS_PCI_IO_BASE, SZ_64K, MT_DEVICE }, +#ifdef CONFIG_PCI + { IO_ADDRESS(VERSATILE_PCI_CORE_BASE), VERSATILE_PCI_CORE_BASE, SZ_4K, MT_DEVICE }, + { VERSATILE_PCI_VIRT_BASE, VERSATILE_PCI_BASE, VERSATILE_PCI_BASE_SIZE, MT_DEVICE }, + { VERSATILE_PCI_CFG_VIRT_BASE, VERSATILE_PCI_CFG_BASE, VERSATILE_PCI_CFG_BASE_SIZE, MT_DEVICE }, +#if 0 + { VERSATILE_PCI_VIRT_MEM_BASE0, VERSATILE_PCI_MEM_BASE0, SZ_16M, MT_DEVICE }, + { VERSATILE_PCI_VIRT_MEM_BASE1, VERSATILE_PCI_MEM_BASE1, SZ_16M, MT_DEVICE }, + { VERSATILE_PCI_VIRT_MEM_BASE2, VERSATILE_PCI_MEM_BASE2, SZ_16M, MT_DEVICE }, +#endif #endif }; diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c new file mode 100644 index 000000000000..d1565e851f0e --- /dev/null +++ b/arch/arm/mach-versatile/pci.c @@ -0,0 +1,360 @@ +/* + * linux/arch/arm/mach-versatile/pci.c + * + * (C) Copyright Koninklijke Philips Electronics NV 2004. All rights reserved. + * You can redistribute and/or modify this software under the terms of version 2 + * of the GNU General Public License as published by the Free Software Foundation. + * THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * Koninklijke Philips Electronics nor its subsidiaries is obligated to provide any support for this software. + * + * ARM Versatile PCI driver. + * + * 14/04/2005 Initial version, colin.king@philips.com + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +/* + * these spaces are mapped using the following base registers: + * + * Usage Local Bus Memory Base/Map registers used + * + * Mem 50000000 - 5FFFFFFF LB_BASE0/LB_MAP0, non prefetch + * Mem 60000000 - 6FFFFFFF LB_BASE1/LB_MAP1, prefetch + * IO 44000000 - 4FFFFFFF LB_BASE2/LB_MAP2, IO + * Cfg 42000000 - 42FFFFFF PCI config + * + */ +#define SYS_PCICTL IO_ADDRESS(VERSATILE_SYS_PCICTL) +#define PCI_IMAP0 IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0x0) +#define PCI_IMAP1 IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0x4) +#define PCI_IMAP2 IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0x8) +#define PCI_SMAP0 IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0x10) +#define PCI_SMAP1 IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0x14) +#define PCI_SMAP2 IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0x18) +#define PCI_SELFID IO_ADDRESS(VERSATILE_PCI_CORE_BASE+0xc) + +#define DEVICE_ID_OFFSET 0x00 +#define CSR_OFFSET 0x04 +#define CLASS_ID_OFFSET 0x08 + +#define VP_PCI_DEVICE_ID 0x030010ee +#define VP_PCI_CLASS_ID 0x0b400000 + +static unsigned long pci_slot_ignore = 0; + +static int __init versatile_pci_slot_ignore(char *str) +{ + int retval; + int slot; + + while ((retval = get_option(&str,&slot))) { + if ((slot < 0) || (slot > 31)) { + printk("Illegal slot value: %d\n",slot); + } else { + pci_slot_ignore |= (1 << slot); + } + } + return 1; +} + +__setup("pci_slot_ignore=", versatile_pci_slot_ignore); + + +static unsigned long __pci_addr(struct pci_bus *bus, + unsigned int devfn, int offset) +{ + unsigned int busnr = bus->number; + + /* + * Trap out illegal values + */ + if (offset > 255) + BUG(); + if (busnr > 255) + BUG(); + if (devfn > 255) + BUG(); + + return (VERSATILE_PCI_CFG_VIRT_BASE | (busnr << 16) | + (PCI_SLOT(devfn) << 11) | (PCI_FUNC(devfn) << 8) | offset); +} + +static int versatile_read_config(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 *val) +{ + unsigned long addr = __pci_addr(bus, devfn, where); + u32 v; + int slot = PCI_SLOT(devfn); + + if (pci_slot_ignore & (1 << slot)) { + /* Ignore this slot */ + switch (size) { + case 1: + v = 0xff; + break; + case 2: + v = 0xffff; + break; + default: + v = 0xffffffff; + } + } else { + switch (size) { + case 1: + addr &= ~3; + v = __raw_readb(addr); + break; + + case 2: + v = __raw_readl(addr & ~3); + if (addr & 2) v >>= 16; + v &= 0xffff; + break; + + default: + addr &= ~3; + v = __raw_readl(addr); + break; + } + } + + *val = v; + return PCIBIOS_SUCCESSFUL; +} + +static int versatile_write_config(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 val) +{ + unsigned long addr = __pci_addr(bus, devfn, where); + int slot = PCI_SLOT(devfn); + + if (pci_slot_ignore & (1 << slot)) { + return PCIBIOS_SUCCESSFUL; + } + + switch (size) { + case 1: + __raw_writeb((u8)val, addr); + break; + + case 2: + __raw_writew((u16)val, addr); + break; + + case 4: + __raw_writel(val, addr); + break; + } + + return PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops pci_versatile_ops = { + .read = versatile_read_config, + .write = versatile_write_config, +}; + +static struct resource io_mem = { + .name = "PCI I/O space", + .start = VERSATILE_PCI_MEM_BASE0, + .end = VERSATILE_PCI_MEM_BASE0+VERSATILE_PCI_MEM_BASE0_SIZE-1, + .flags = IORESOURCE_IO, +}; + +static struct resource non_mem = { + .name = "PCI non-prefetchable", + .start = VERSATILE_PCI_MEM_BASE1, + .end = VERSATILE_PCI_MEM_BASE1+VERSATILE_PCI_MEM_BASE1_SIZE-1, + .flags = IORESOURCE_MEM, +}; + +static struct resource pre_mem = { + .name = "PCI prefetchable", + .start = VERSATILE_PCI_MEM_BASE2, + .end = VERSATILE_PCI_MEM_BASE2+VERSATILE_PCI_MEM_BASE2_SIZE-1, + .flags = IORESOURCE_MEM | IORESOURCE_PREFETCH, +}; + +static int __init pci_versatile_setup_resources(struct resource **resource) +{ + int ret = 0; + + ret = request_resource(&iomem_resource, &io_mem); + if (ret) { + printk(KERN_ERR "PCI: unable to allocate I/O " + "memory region (%d)\n", ret); + goto out; + } + ret = request_resource(&iomem_resource, &non_mem); + if (ret) { + printk(KERN_ERR "PCI: unable to allocate non-prefetchable " + "memory region (%d)\n", ret); + goto release_io_mem; + } + ret = request_resource(&iomem_resource, &pre_mem); + if (ret) { + printk(KERN_ERR "PCI: unable to allocate prefetchable " + "memory region (%d)\n", ret); + goto release_non_mem; + } + + /* + * bus->resource[0] is the IO resource for this bus + * bus->resource[1] is the mem resource for this bus + * bus->resource[2] is the prefetch mem resource for this bus + */ + resource[0] = &io_mem; + resource[1] = &non_mem; + resource[2] = &pre_mem; + + goto out; + + release_non_mem: + release_resource(&non_mem); + release_io_mem: + release_resource(&io_mem); + out: + return ret; +} + +int __init pci_versatile_setup(int nr, struct pci_sys_data *sys) +{ + int ret = 0; + int i; + int myslot = -1; + unsigned long val; + + if (nr == 0) { + sys->mem_offset = 0; + ret = pci_versatile_setup_resources(sys->resource); + if (ret < 0) { + printk("pci_versatile_setup: resources... oops?\n"); + goto out; + } + } else { + printk("pci_versatile_setup: resources... nr == 0??\n"); + goto out; + } + + __raw_writel(VERSATILE_PCI_MEM_BASE0 >> 28,PCI_IMAP0); + __raw_writel(VERSATILE_PCI_MEM_BASE1 >> 28,PCI_IMAP1); + __raw_writel(VERSATILE_PCI_MEM_BASE2 >> 28,PCI_IMAP2); + + __raw_writel(1, SYS_PCICTL); + + val = __raw_readl(SYS_PCICTL); + if (!(val & 1)) { + printk("Not plugged into PCI backplane!\n"); + ret = -EIO; + goto out; + } + + /* + * We need to discover the PCI core first to configure itself + * before the main PCI probing is performed + */ + for (i=0; i<32; i++) { + if ((__raw_readl(VERSATILE_PCI_VIRT_BASE+(i<<11)+DEVICE_ID_OFFSET) == VP_PCI_DEVICE_ID) && + (__raw_readl(VERSATILE_PCI_VIRT_BASE+(i<<11)+CLASS_ID_OFFSET) == VP_PCI_CLASS_ID)) { + myslot = i; + + __raw_writel(myslot, PCI_SELFID); + val = __raw_readl(VERSATILE_PCI_CFG_VIRT_BASE+(myslot<<11)+CSR_OFFSET); + val |= (1<<2); + __raw_writel(val, VERSATILE_PCI_CFG_VIRT_BASE+(myslot<<11)+CSR_OFFSET); + break; + } + } + + if (myslot == -1) { + printk("Cannot find PCI core!\n"); + ret = -EIO; + } else { + printk("PCI core found (slot %d)\n",myslot); + /* Do not to map Versatile FPGA PCI device + into memory space as we are short of + mappable memory */ + pci_slot_ignore |= (1 << myslot); + ret = 1; + } + + out: + return ret; +} + + +struct pci_bus *pci_versatile_scan_bus(int nr, struct pci_sys_data *sys) +{ + return pci_scan_bus(sys->busnr, &pci_versatile_ops, sys); +} + +/* + * V3_LB_BASE? - local bus address + * V3_LB_MAP? - pci bus address + */ +void __init pci_versatile_preinit(void) +{ +} + +void __init pci_versatile_postinit(void) +{ +} + + +/* + * map the specified device/slot/pin to an IRQ. Different backplanes may need to modify this. + */ +static int __init versatile_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq; + int devslot = PCI_SLOT(dev->devfn); + + /* slot, pin, irq + 24 1 27 + 25 1 28 untested + 26 1 29 + 27 1 30 untested + */ + + irq = 27 + ((slot + pin + 2) % 3); /* Fudged */ + + printk("map irq: slot %d, pin %d, devslot %d, irq: %d\n",slot,pin,devslot,irq); + + return irq; +} + +static struct hw_pci versatile_pci __initdata = { + .swizzle = NULL, + .map_irq = versatile_map_irq, + .nr_controllers = 1, + .setup = pci_versatile_setup, + .scan = pci_versatile_scan_bus, + .preinit = pci_versatile_preinit, + .postinit = pci_versatile_postinit, +}; + +static int __init versatile_pci_init(void) +{ + pci_common_init(&versatile_pci); + return 0; +} + +subsys_initcall(versatile_pci_init); diff --git a/include/asm-arm/arch-versatile/hardware.h b/include/asm-arm/arch-versatile/hardware.h index d5fb4a251e7f..41c1bee342ad 100644 --- a/include/asm-arm/arch-versatile/hardware.h +++ b/include/asm-arm/arch-versatile/hardware.h @@ -25,19 +25,26 @@ #include #include -// FIXME = PCI settings need to be fixed!!!!! - /* - * Similar to above, but for PCI addresses (memory, IO, Config and the - * V3 chip itself). WARNING: this has to mirror definitions in platform.h + * PCI space virtual addresses */ -#define PCI_MEMORY_VADDR 0xe8000000 -#define PCI_CONFIG_VADDR 0xec000000 -#define PCI_V3_VADDR 0xed000000 -#define PCI_IO_VADDR 0xee000000 +#define VERSATILE_PCI_VIRT_BASE 0xe8000000 +#define VERSATILE_PCI_CFG_VIRT_BASE 0xe9000000 + +#if 0 +#define VERSATILE_PCI_VIRT_MEM_BASE0 0xf4000000 +#define VERSATILE_PCI_VIRT_MEM_BASE1 0xf5000000 +#define VERSATILE_PCI_VIRT_MEM_BASE2 0xf6000000 + +#define PCIO_BASE VERSATILE_PCI_VIRT_MEM_BASE0 +#define PCIMEM_BASE VERSATILE_PCI_VIRT_MEM_BASE1 +#endif + +/* CIK guesswork */ +#define PCIBIOS_MIN_IO 0x44000000 +#define PCIBIOS_MIN_MEM 0x50000000 -#define PCIO_BASE PCI_IO_VADDR -#define PCIMEM_BASE PCI_MEMORY_VADDR +#define pcibios_assign_all_busses() 1 /* macro to get at IO space when running virtually */ #define IO_ADDRESS(x) (((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + 0xf0000000) diff --git a/include/asm-arm/arch-versatile/io.h b/include/asm-arm/arch-versatile/io.h index dbb7158788fc..9f895bf61494 100644 --- a/include/asm-arm/arch-versatile/io.h +++ b/include/asm-arm/arch-versatile/io.h @@ -20,7 +20,7 @@ #ifndef __ASM_ARM_ARCH_IO_H #define __ASM_ARM_ARCH_IO_H -#define IO_SPACE_LIMIT 0xffff +#define IO_SPACE_LIMIT 0xffffffff #define __io(a) ((void __iomem *)(a)) #define __mem_pci(a) (a) diff --git a/include/asm-arm/arch-versatile/platform.h b/include/asm-arm/arch-versatile/platform.h index a71093e44c58..cbdd9fb96332 100644 --- a/include/asm-arm/arch-versatile/platform.h +++ b/include/asm-arm/arch-versatile/platform.h @@ -76,7 +76,7 @@ #define VERSATILE_SYS_NVFLAGSSET_OFFSET 0x38 #define VERSATILE_SYS_NVFLAGSCLR_OFFSET 0x3C #define VERSATILE_SYS_RESETCTL_OFFSET 0x40 -#define VERSATILE_SYS_PICCTL_OFFSET 0x44 +#define VERSATILE_SYS_PCICTL_OFFSET 0x44 #define VERSATILE_SYS_MCI_OFFSET 0x48 #define VERSATILE_SYS_FLASH_OFFSET 0x4C #define VERSATILE_SYS_CLCD_OFFSET 0x50 @@ -114,7 +114,7 @@ #define VERSATILE_SYS_NVFLAGSSET (VERSATILE_SYS_BASE + VERSATILE_SYS_NVFLAGSSET_OFFSET) #define VERSATILE_SYS_NVFLAGSCLR (VERSATILE_SYS_BASE + VERSATILE_SYS_NVFLAGSCLR_OFFSET) #define VERSATILE_SYS_RESETCTL (VERSATILE_SYS_BASE + VERSATILE_SYS_RESETCTL_OFFSET) -#define VERSATILE_SYS_PICCTL (VERSATILE_SYS_BASE + VERSATILE_SYS_PICCTL_OFFSET) +#define VERSATILE_SYS_PCICTL (VERSATILE_SYS_BASE + VERSATILE_SYS_PCICTL_OFFSET) #define VERSATILE_SYS_MCI (VERSATILE_SYS_BASE + VERSATILE_SYS_MCI_OFFSET) #define VERSATILE_SYS_FLASH (VERSATILE_SYS_BASE + VERSATILE_SYS_FLASH_OFFSET) #define VERSATILE_SYS_CLCD (VERSATILE_SYS_BASE + VERSATILE_SYS_CLCD_OFFSET) @@ -225,7 +225,20 @@ #define VERSATILE_SSMC_BASE 0x20000000 /* SSMC */ #define VERSATILE_IB2_BASE 0x24000000 /* IB2 module */ #define VERSATILE_MBX_BASE 0x40000000 /* MBX */ + +/* PCI space */ #define VERSATILE_PCI_BASE 0x41000000 /* PCI Interface */ +#define VERSATILE_PCI_CFG_BASE 0x42000000 +#define VERSATILE_PCI_MEM_BASE0 0x44000000 +#define VERSATILE_PCI_MEM_BASE1 0x50000000 +#define VERSATILE_PCI_MEM_BASE2 0x60000000 +/* Sizes of above maps */ +#define VERSATILE_PCI_BASE_SIZE 0x01000000 +#define VERSATILE_PCI_CFG_BASE_SIZE 0x02000000 +#define VERSATILE_PCI_MEM_BASE0_SIZE 0x0c000000 /* 32Mb */ +#define VERSATILE_PCI_MEM_BASE1_SIZE 0x10000000 /* 256Mb */ +#define VERSATILE_PCI_MEM_BASE2_SIZE 0x10000000 /* 256Mb */ + #define VERSATILE_SDRAM67_BASE 0x70000000 /* SDRAM banks 6 and 7 */ #define VERSATILE_LT_BASE 0x80000000 /* Logic Tile expansion */ -- cgit v1.2.3 From e4fe19819ef32950541503042f32e71b67edffc7 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 20 Jun 2005 18:51:07 +0100 Subject: [PATCH] ARM: 2701/1: free up ixp2000 timer 4 for the watchdog Patch from Lennert Buytenhek The IXP2000 has four timers, but if we're on an A-step IXP2800, timer 2 and 3 don't work. We need two timers for timekeeping (one for the timer interrupt and one for tracking missed jiffies), so on early IXP2800s we have no other choice but to use timer 1 and 4 for that, but on all other IXP2000s we'd rather leave timer 4 free since that's the only timer we can use for the watchdog. So, on buggy IXP2000s (i.e. the A-step IXP2800) we use timer 4 for tracking missed jiffies, and on all all non-buggy IXP2000s (i.e. everything but the A-step IXP2800) we use timer 2. On a pre-production IXP2800, this patch should print these messages on boot: Enabling IXP2800 erratum #25 workaround Unable to use IXP2000 watchdog due to IXP2800 erratum #25 On any non-buggy IXP2800 (as well as on IXP2400s) you shouldn't see anything at all, and the watchdog should be usable again. Signed-off-by: Lennert Buytenhek Signed-off-by: Deepak Saxena Signed-off-by: Russell King --- arch/arm/mach-ixp2000/core.c | 34 ++++++++++++++++++++++------- drivers/char/watchdog/ixp2000_wdt.c | 7 +++++- include/asm-arm/arch-ixp2000/ixp2000-regs.h | 1 + 3 files changed, 33 insertions(+), 9 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c index 4f3c3d5c781c..fc0555596d6d 100644 --- a/arch/arm/mach-ixp2000/core.c +++ b/arch/arm/mach-ixp2000/core.c @@ -162,12 +162,13 @@ void __init ixp2000_map_io(void) static unsigned ticks_per_jiffy; static unsigned ticks_per_usec; static unsigned next_jiffy_time; +static volatile unsigned long *missing_jiffy_timer_csr; unsigned long ixp2000_gettimeoffset (void) { unsigned long offset; - offset = next_jiffy_time - *IXP2000_T4_CSR; + offset = next_jiffy_time - *missing_jiffy_timer_csr; return offset / ticks_per_usec; } @@ -179,7 +180,7 @@ static int ixp2000_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) /* clear timer 1 */ ixp2000_reg_write(IXP2000_T1_CLR, 1); - while ((next_jiffy_time - *IXP2000_T4_CSR) > ticks_per_jiffy) { + while ((next_jiffy_time - *missing_jiffy_timer_csr) > ticks_per_jiffy) { timer_tick(regs); next_jiffy_time -= ticks_per_jiffy; } @@ -197,20 +198,37 @@ static struct irqaction ixp2000_timer_irq = { void __init ixp2000_init_time(unsigned long tick_rate) { - ixp2000_reg_write(IXP2000_T1_CLR, 0); - ixp2000_reg_write(IXP2000_T4_CLR, 0); - ticks_per_jiffy = (tick_rate + HZ/2) / HZ; ticks_per_usec = tick_rate / 1000000; + /* + * We use timer 1 as our timer interrupt. + */ + ixp2000_reg_write(IXP2000_T1_CLR, 0); ixp2000_reg_write(IXP2000_T1_CLD, ticks_per_jiffy - 1); ixp2000_reg_write(IXP2000_T1_CTL, (1 << 7)); /* - * We use T4 as a monotonic counter to track missed jiffies + * We use a second timer as a monotonic counter for tracking + * missed jiffies. The IXP2000 has four timers, but if we're + * on an A-step IXP2800, timer 2 and 3 don't work, so on those + * chips we use timer 4. Timer 4 is the only timer that can + * be used for the watchdog, so we use timer 2 if we're on a + * non-buggy chip. */ - ixp2000_reg_write(IXP2000_T4_CLD, -1); - ixp2000_reg_write(IXP2000_T4_CTL, (1 << 7)); + if ((*IXP2000_PRODUCT_ID & 0x001ffef0) == 0x00000000) { + printk(KERN_INFO "Enabling IXP2800 erratum #25 workaround\n"); + + ixp2000_reg_write(IXP2000_T4_CLR, 0); + ixp2000_reg_write(IXP2000_T4_CLD, -1); + ixp2000_reg_write(IXP2000_T4_CTL, (1 << 7)); + missing_jiffy_timer_csr = IXP2000_T4_CSR; + } else { + ixp2000_reg_write(IXP2000_T2_CLR, 0); + ixp2000_reg_write(IXP2000_T2_CLD, -1); + ixp2000_reg_write(IXP2000_T2_CTL, (1 << 7)); + missing_jiffy_timer_csr = IXP2000_T2_CSR; + } next_jiffy_time = 0xffffffff; /* register for interrupt */ diff --git a/drivers/char/watchdog/ixp2000_wdt.c b/drivers/char/watchdog/ixp2000_wdt.c index ab659d37b4d2..4e98c215e5b1 100644 --- a/drivers/char/watchdog/ixp2000_wdt.c +++ b/drivers/char/watchdog/ixp2000_wdt.c @@ -192,7 +192,12 @@ static struct miscdevice ixp2000_wdt_miscdev = static int __init ixp2000_wdt_init(void) { - wdt_tick_rate = (*IXP2000_T1_CLD * HZ)/ 256;; + if ((*IXP2000_PRODUCT_ID & 0x001ffef0) == 0x00000000) { + printk(KERN_INFO "Unable to use IXP2000 watchdog due to IXP2800 erratum #25.\n"); + return -EIO; + } + + wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256; return misc_register(&ixp2000_wdt_miscdev); } diff --git a/include/asm-arm/arch-ixp2000/ixp2000-regs.h b/include/asm-arm/arch-ixp2000/ixp2000-regs.h index 6c56708d0ff0..a1d9e181b10f 100644 --- a/include/asm-arm/arch-ixp2000/ixp2000-regs.h +++ b/include/asm-arm/arch-ixp2000/ixp2000-regs.h @@ -363,6 +363,7 @@ #define IXP2000_MIN_REV_MASK 0x0000000F #define IXP2000_PROD_ID_MASK 0xFFFFFFFF +#define IXP2000_PRODUCT_ID GLOBAL_REG(0x00) #define IXP2000_MISC_CONTROL GLOBAL_REG(0x04) #define IXP2000_MSF_CLK_CNTRL GLOBAL_REG(0x08) #define IXP2000_RESET0 GLOBAL_REG(0x0c) -- cgit v1.2.3 From d67947a1bd6530791ad3663b93d91b44de89c2ca Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 20 Jun 2005 18:51:07 +0100 Subject: [PATCH] ARM: 2716/1: SharpSL Param: Fix typo Patch from Richard Purdie Fix typo in sharpsl_param.c so it works correctly on collie. Signed-off-by: Richard Purdie Signed-off-by: Russell King --- arch/arm/common/sharpsl_param.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/common/sharpsl_param.c b/arch/arm/common/sharpsl_param.c index c2c557a224c2..c94864c5b1af 100644 --- a/arch/arm/common/sharpsl_param.c +++ b/arch/arm/common/sharpsl_param.c @@ -22,7 +22,7 @@ * them early in the boot process, then pass them to the appropriate drivers. * Not all devices use all paramaters but the format is common to all. */ -#ifdef ARCH_SA1100 +#ifdef CONFIG_ARCH_SA1100 #define PARAM_BASE 0xe8ffc000 #else #define PARAM_BASE 0xa0000a00 -- cgit v1.2.3 From f0ffeddc897a5cc5d5c6cc1b99a8799a8b34b28f Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 20 Jun 2005 18:51:08 +0100 Subject: [PATCH] ARM: 2719/1: enable module support in ixp2000 defconfigs by default Patch from Lennert Buytenhek The ixp2000 defconfigs are among the few that do not enable module support by default. I keep enabling module support by hand for every new kernel version, so let's just make this change upstream. Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King --- arch/arm/configs/enp2611_defconfig | 8 +++++++- arch/arm/configs/ixdp2400_defconfig | 8 +++++++- arch/arm/configs/ixdp2401_defconfig | 8 +++++++- arch/arm/configs/ixdp2800_defconfig | 8 +++++++- arch/arm/configs/ixdp2801_defconfig | 8 +++++++- 5 files changed, 35 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/configs/enp2611_defconfig b/arch/arm/configs/enp2611_defconfig index e8f9fccffe84..06fae4b62774 100644 --- a/arch/arm/configs/enp2611_defconfig +++ b/arch/arm/configs/enp2611_defconfig @@ -50,7 +50,13 @@ CONFIG_BASE_SMALL=0 # # Loadable module support # -# CONFIG_MODULES is not set +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y # # System Type diff --git a/arch/arm/configs/ixdp2400_defconfig b/arch/arm/configs/ixdp2400_defconfig index 4fd663ecbe39..810a450a55d2 100644 --- a/arch/arm/configs/ixdp2400_defconfig +++ b/arch/arm/configs/ixdp2400_defconfig @@ -50,7 +50,13 @@ CONFIG_BASE_SMALL=0 # # Loadable module support # -# CONFIG_MODULES is not set +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y # # System Type diff --git a/arch/arm/configs/ixdp2401_defconfig b/arch/arm/configs/ixdp2401_defconfig index 6f51c98084a3..72e1b940e975 100644 --- a/arch/arm/configs/ixdp2401_defconfig +++ b/arch/arm/configs/ixdp2401_defconfig @@ -50,7 +50,13 @@ CONFIG_BASE_SMALL=0 # # Loadable module support # -# CONFIG_MODULES is not set +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y # # System Type diff --git a/arch/arm/configs/ixdp2800_defconfig b/arch/arm/configs/ixdp2800_defconfig index 7be3521f91fc..1592e45f0278 100644 --- a/arch/arm/configs/ixdp2800_defconfig +++ b/arch/arm/configs/ixdp2800_defconfig @@ -50,7 +50,13 @@ CONFIG_BASE_SMALL=0 # # Loadable module support # -# CONFIG_MODULES is not set +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y # # System Type diff --git a/arch/arm/configs/ixdp2801_defconfig b/arch/arm/configs/ixdp2801_defconfig index cd84a20f30f1..f1afe3d09ec6 100644 --- a/arch/arm/configs/ixdp2801_defconfig +++ b/arch/arm/configs/ixdp2801_defconfig @@ -50,7 +50,13 @@ CONFIG_BASE_SMALL=0 # # Loadable module support # -# CONFIG_MODULES is not set +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y # # System Type -- cgit v1.2.3 From 8874b414ffe037c39e73bb262ddf69653a13c0a4 Mon Sep 17 00:00:00 2001 From: "gregkh@suse.de" Date: Wed, 23 Mar 2005 09:56:34 -0800 Subject: [PATCH] class: convert arch/* to use the new class api instead of class_simple Signed-off-by: Greg Kroah-Hartman --- arch/i386/kernel/cpuid.c | 22 +++++++++++----------- arch/i386/kernel/msr.c | 22 +++++++++++----------- 2 files changed, 22 insertions(+), 22 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/cpuid.c b/arch/i386/kernel/cpuid.c index 2e2756345bb2..4647db4ad6de 100644 --- a/arch/i386/kernel/cpuid.c +++ b/arch/i386/kernel/cpuid.c @@ -45,7 +45,7 @@ #include #include -static struct class_simple *cpuid_class; +static struct class *cpuid_class; #ifdef CONFIG_SMP @@ -158,12 +158,12 @@ static struct file_operations cpuid_fops = { .open = cpuid_open, }; -static int cpuid_class_simple_device_add(int i) +static int cpuid_class_device_create(int i) { int err = 0; struct class_device *class_err; - class_err = class_simple_device_add(cpuid_class, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i); + class_err = class_device_create(cpuid_class, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i); if (IS_ERR(class_err)) err = PTR_ERR(class_err); return err; @@ -175,10 +175,10 @@ static int __devinit cpuid_class_cpu_callback(struct notifier_block *nfb, unsign switch (action) { case CPU_ONLINE: - cpuid_class_simple_device_add(cpu); + cpuid_class_device_create(cpu); break; case CPU_DEAD: - class_simple_device_remove(MKDEV(CPUID_MAJOR, cpu)); + class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu)); break; } return NOTIFY_OK; @@ -200,13 +200,13 @@ static int __init cpuid_init(void) err = -EBUSY; goto out; } - cpuid_class = class_simple_create(THIS_MODULE, "cpuid"); + cpuid_class = class_create(THIS_MODULE, "cpuid"); if (IS_ERR(cpuid_class)) { err = PTR_ERR(cpuid_class); goto out_chrdev; } for_each_online_cpu(i) { - err = cpuid_class_simple_device_add(i); + err = cpuid_class_device_create(i); if (err != 0) goto out_class; } @@ -218,9 +218,9 @@ static int __init cpuid_init(void) out_class: i = 0; for_each_online_cpu(i) { - class_simple_device_remove(MKDEV(CPUID_MAJOR, i)); + class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, i)); } - class_simple_destroy(cpuid_class); + class_destroy(cpuid_class); out_chrdev: unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); out: @@ -232,8 +232,8 @@ static void __exit cpuid_exit(void) int cpu = 0; for_each_online_cpu(cpu) - class_simple_device_remove(MKDEV(CPUID_MAJOR, cpu)); - class_simple_destroy(cpuid_class); + class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu)); + class_destroy(cpuid_class); unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); unregister_cpu_notifier(&cpuid_class_cpu_notifier); } diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c index 05d9f8f363a6..b2f03c39a6fe 100644 --- a/arch/i386/kernel/msr.c +++ b/arch/i386/kernel/msr.c @@ -44,7 +44,7 @@ #include #include -static struct class_simple *msr_class; +static struct class *msr_class; /* Note: "err" is handled in a funny way below. Otherwise one version of gcc or another breaks. */ @@ -260,12 +260,12 @@ static struct file_operations msr_fops = { .open = msr_open, }; -static int msr_class_simple_device_add(int i) +static int msr_class_device_create(int i) { int err = 0; struct class_device *class_err; - class_err = class_simple_device_add(msr_class, MKDEV(MSR_MAJOR, i), NULL, "msr%d",i); + class_err = class_device_create(msr_class, MKDEV(MSR_MAJOR, i), NULL, "msr%d",i); if (IS_ERR(class_err)) err = PTR_ERR(class_err); return err; @@ -277,10 +277,10 @@ static int __devinit msr_class_cpu_callback(struct notifier_block *nfb, unsigned switch (action) { case CPU_ONLINE: - msr_class_simple_device_add(cpu); + msr_class_device_create(cpu); break; case CPU_DEAD: - class_simple_device_remove(MKDEV(MSR_MAJOR, cpu)); + class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu)); break; } return NOTIFY_OK; @@ -302,13 +302,13 @@ static int __init msr_init(void) err = -EBUSY; goto out; } - msr_class = class_simple_create(THIS_MODULE, "msr"); + msr_class = class_create(THIS_MODULE, "msr"); if (IS_ERR(msr_class)) { err = PTR_ERR(msr_class); goto out_chrdev; } for_each_online_cpu(i) { - err = msr_class_simple_device_add(i); + err = msr_class_device_create(i); if (err != 0) goto out_class; } @@ -320,8 +320,8 @@ static int __init msr_init(void) out_class: i = 0; for_each_online_cpu(i) - class_simple_device_remove(MKDEV(MSR_MAJOR, i)); - class_simple_destroy(msr_class); + class_device_destroy(msr_class, MKDEV(MSR_MAJOR, i)); + class_destroy(msr_class); out_chrdev: unregister_chrdev(MSR_MAJOR, "cpu/msr"); out: @@ -332,8 +332,8 @@ static void __exit msr_exit(void) { int cpu = 0; for_each_online_cpu(cpu) - class_simple_device_remove(MKDEV(MSR_MAJOR, cpu)); - class_simple_destroy(msr_class); + class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu)); + class_destroy(msr_class); unregister_chrdev(MSR_MAJOR, "cpu/msr"); unregister_cpu_notifier(&msr_class_cpu_notifier); } -- cgit v1.2.3 From 6623415687eaffef49429292ab062bb046ee3311 Mon Sep 17 00:00:00 2001 From: Patrick Mochel Date: Thu, 28 Apr 2005 17:11:52 -0700 Subject: [PATCH] sn: fixes due to driver core changes Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- arch/ia64/sn/kernel/tiocx.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) (limited to 'arch') diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c index ab9b5f35c2a7..b6bcfe0b0f09 100644 --- a/arch/ia64/sn/kernel/tiocx.c +++ b/arch/ia64/sn/kernel/tiocx.c @@ -518,25 +518,22 @@ static int __init tiocx_init(void) return 0; } -static void __exit tiocx_exit(void) +static int cx_remove_device(struct device * dev, void * data) { - struct device *dev; - struct device *tdev; + struct cx_dev *cx_dev = to_cx_dev(dev); + device_remove_file(dev, &dev_attr_cxdev_control); + cx_device_unregister(cx_dev); + return 0; +} +static void __exit tiocx_exit(void) +{ DBG("tiocx_exit\n"); /* * Unregister devices. */ - list_for_each_entry_safe(dev, tdev, &tiocx_bus_type.devices.list, - bus_list) { - if (dev) { - struct cx_dev *cx_dev = to_cx_dev(dev); - device_remove_file(dev, &dev_attr_cxdev_control); - cx_device_unregister(cx_dev); - } - } - + bus_for_each_dev(&tiocx_bus_type, NULL, NULL, cx_remove_device); bus_unregister(&tiocx_bus_type); } -- cgit v1.2.3 From ff381d2223a30ee70752791fd9c3588d8f1cab77 Mon Sep 17 00:00:00 2001 From: Yani Ioannou Date: Tue, 17 May 2005 06:40:51 -0400 Subject: [PATCH] Driver Core: arch: update device attribute callbacks Signed-off-by: Yani Ioannou Signed-off-by: Greg Kroah-Hartman --- arch/arm/common/amba.c | 2 +- arch/arm/kernel/ecard.c | 12 ++++++------ arch/arm26/kernel/ecard.c | 10 +++++----- arch/ia64/sn/kernel/tiocx.c | 4 ++-- arch/parisc/kernel/drivers.c | 2 +- arch/ppc/kernel/pci.c | 2 +- arch/ppc/syslib/ocp.c | 2 +- arch/ppc/syslib/of_device.c | 2 +- arch/ppc64/kernel/of_device.c | 2 +- arch/ppc64/kernel/pci.c | 2 +- arch/ppc64/kernel/vio.c | 4 ++-- 11 files changed, 22 insertions(+), 22 deletions(-) (limited to 'arch') diff --git a/arch/arm/common/amba.c b/arch/arm/common/amba.c index a0507f8c33fe..c6beb751f2a9 100644 --- a/arch/arm/common/amba.c +++ b/arch/arm/common/amba.c @@ -169,7 +169,7 @@ static void amba_device_release(struct device *dev) } #define amba_attr(name,fmt,arg...) \ -static ssize_t show_##name(struct device *_dev, char *buf) \ +static ssize_t show_##name(struct device *_dev, struct device_attribute *attr, char *buf) \ { \ struct amba_device *dev = to_amba_device(_dev); \ return sprintf(buf, fmt, arg); \ diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c index 3dc15b131f53..6540db691338 100644 --- a/arch/arm/kernel/ecard.c +++ b/arch/arm/kernel/ecard.c @@ -866,19 +866,19 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot) return ec; } -static ssize_t ecard_show_irq(struct device *dev, char *buf) +static ssize_t ecard_show_irq(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->irq); } -static ssize_t ecard_show_dma(struct device *dev, char *buf) +static ssize_t ecard_show_dma(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->dma); } -static ssize_t ecard_show_resources(struct device *dev, char *buf) +static ssize_t ecard_show_resources(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); char *str = buf; @@ -893,19 +893,19 @@ static ssize_t ecard_show_resources(struct device *dev, char *buf) return str - buf; } -static ssize_t ecard_show_vendor(struct device *dev, char *buf) +static ssize_t ecard_show_vendor(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->cid.manufacturer); } -static ssize_t ecard_show_device(struct device *dev, char *buf) +static ssize_t ecard_show_device(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->cid.product); } -static ssize_t ecard_show_type(struct device *dev, char *buf) +static ssize_t ecard_show_type(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%s\n", ec->type == ECARD_EASI ? "EASI" : "IOC"); diff --git a/arch/arm26/kernel/ecard.c b/arch/arm26/kernel/ecard.c index 824c6b571ad9..f2278aadac8a 100644 --- a/arch/arm26/kernel/ecard.c +++ b/arch/arm26/kernel/ecard.c @@ -562,31 +562,31 @@ static void __init ecard_init_resources(struct expansion_card *ec) } } -static ssize_t ecard_show_irq(struct device *dev, char *buf) +static ssize_t ecard_show_irq(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->irq); } -static ssize_t ecard_show_vendor(struct device *dev, char *buf) +static ssize_t ecard_show_vendor(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->cid.manufacturer); } -static ssize_t ecard_show_device(struct device *dev, char *buf) +static ssize_t ecard_show_device(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->cid.product); } -static ssize_t ecard_show_dma(struct device *dev, char *buf) +static ssize_t ecard_show_dma(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); return sprintf(buf, "%u\n", ec->dma); } -static ssize_t ecard_show_resources(struct device *dev, char *buf) +static ssize_t ecard_show_resources(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); char *str = buf; diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c index b6bcfe0b0f09..a087b274847e 100644 --- a/arch/ia64/sn/kernel/tiocx.c +++ b/arch/ia64/sn/kernel/tiocx.c @@ -432,7 +432,7 @@ static int tiocx_reload(struct cx_dev *cx_dev) return cx_device_reload(cx_dev); } -static ssize_t show_cxdev_control(struct device *dev, char *buf) +static ssize_t show_cxdev_control(struct device *dev, struct device_attribute *attr, char *buf) { struct cx_dev *cx_dev = to_cx_dev(dev); @@ -442,7 +442,7 @@ static ssize_t show_cxdev_control(struct device *dev, char *buf) tiocx_btchar_get(cx_dev->cx_id.nasid)); } -static ssize_t store_cxdev_control(struct device *dev, const char *buf, +static ssize_t store_cxdev_control(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int n; diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c index ebf186656afb..d34bbe7ae0e3 100644 --- a/arch/parisc/kernel/drivers.c +++ b/arch/parisc/kernel/drivers.c @@ -466,7 +466,7 @@ static int parisc_generic_match(struct device *dev, struct device_driver *drv) } #define pa_dev_attr(name, field, format_string) \ -static ssize_t name##_show(struct device *dev, char *buf) \ +static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct parisc_device *padev = to_parisc_device(dev); \ return sprintf(buf, format_string, padev->field); \ diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 47a15306823a..6d7b92d72458 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -1003,7 +1003,7 @@ pci_create_OF_bus_map(void) } } -static ssize_t pci_show_devspec(struct device *dev, char *buf) +static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pdev; struct device_node *np; diff --git a/arch/ppc/syslib/ocp.c b/arch/ppc/syslib/ocp.c index a5156c5179a6..e5fd2ae503ea 100644 --- a/arch/ppc/syslib/ocp.c +++ b/arch/ppc/syslib/ocp.c @@ -68,7 +68,7 @@ static int ocp_inited; /* Sysfs support */ #define OCP_DEF_ATTR(field, format_string) \ static ssize_t \ -show_##field(struct device *dev, char *buf) \ +show_##field(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct ocp_device *odev = to_ocp_dev(dev); \ \ diff --git a/arch/ppc/syslib/of_device.c b/arch/ppc/syslib/of_device.c index 46269ed21aee..49c0e34e2d6b 100644 --- a/arch/ppc/syslib/of_device.c +++ b/arch/ppc/syslib/of_device.c @@ -161,7 +161,7 @@ void of_unregister_driver(struct of_platform_driver *drv) } -static ssize_t dev_show_devspec(struct device *dev, char *buf) +static ssize_t dev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf) { struct of_device *ofdev; diff --git a/arch/ppc64/kernel/of_device.c b/arch/ppc64/kernel/of_device.c index f4c825a69fa0..66bd5ab7c25a 100644 --- a/arch/ppc64/kernel/of_device.c +++ b/arch/ppc64/kernel/of_device.c @@ -161,7 +161,7 @@ void of_unregister_driver(struct of_platform_driver *drv) } -static ssize_t dev_show_devspec(struct device *dev, char *buf) +static ssize_t dev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf) { struct of_device *ofdev; diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c index d786d4b6af0b..2bf0513f3eca 100644 --- a/arch/ppc64/kernel/pci.c +++ b/arch/ppc64/kernel/pci.c @@ -507,7 +507,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, } #ifdef CONFIG_PPC_MULTIPLATFORM -static ssize_t pci_show_devspec(struct device *dev, char *buf) +static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pdev; struct device_node *np; diff --git a/arch/ppc64/kernel/vio.c b/arch/ppc64/kernel/vio.c index cdd830cb2768..79f2dc7a9833 100644 --- a/arch/ppc64/kernel/vio.c +++ b/arch/ppc64/kernel/vio.c @@ -300,7 +300,7 @@ static void __devinit vio_dev_release(struct device *dev) } #ifdef CONFIG_PPC_PSERIES -static ssize_t viodev_show_devspec(struct device *dev, char *buf) +static ssize_t viodev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf) { struct device_node *of_node = dev->platform_data; @@ -309,7 +309,7 @@ static ssize_t viodev_show_devspec(struct device *dev, char *buf) DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL); #endif -static ssize_t viodev_show_name(struct device *dev, char *buf) +static ssize_t viodev_show_name(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%s\n", to_vio_dev(dev)->name); } -- cgit v1.2.3