diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 18:59:56 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 18:59:56 -0700 |
commit | da849abeb86ddaa093b0935fde595e8e4dd21ffc (patch) | |
tree | f985f6b1858f3abce274f267bfde051810215ed0 /arch/x86 | |
parent | 21a32816b2e13eafb6d8a4589a84c6e629adc392 (diff) | |
parent | 371c394af27ab7d1e58a66bc19d9f1f3ac1f67b4 (diff) | |
download | linux-da849abeb86ddaa093b0935fde595e8e4dd21ffc.tar.bz2 |
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, binutils, xen: Fix another wrong size directive
x86: Remove dead config option X86_CPU
x86: Really print supported CPUs if PROCESSOR_SELECT=y
x86: Fix a bogus unwind annotation in lib/semaphore_32.S
um, x86-64: Fix UML build after adding CFI annotations to lib/rwsem_64.S
x86: Remove unused bits from lib/thunk_*.S
x86: Use {push,pop}_cfi in more places
x86-64: Add CFI annotations to lib/rwsem_64.S
x86, asm: Cleanup unnecssary macros in asm-offsets.c
x86, system.h: Drop unused __SAVE/__RESTORE macros
x86: Use bitmap library functions
x86: Partly unify asm-offsets_{32,64}.c
x86: Reduce back the alignment of the per-CPU data section
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/Kconfig | 2 | ||||
-rw-r--r-- | arch/x86/Kconfig.cpu | 5 | ||||
-rw-r--r-- | arch/x86/ia32/ia32entry.S | 27 | ||||
-rw-r--r-- | arch/x86/include/asm/frame.h | 6 | ||||
-rw-r--r-- | arch/x86/include/asm/system.h | 2 | ||||
-rw-r--r-- | arch/x86/kernel/asm-offsets.c | 65 | ||||
-rw-r--r-- | arch/x86/kernel/asm-offsets_32.c | 69 | ||||
-rw-r--r-- | arch/x86/kernel/asm-offsets_64.c | 90 | ||||
-rw-r--r-- | arch/x86/kernel/cpu/common.c | 4 | ||||
-rw-r--r-- | arch/x86/kernel/entry_32.S | 5 | ||||
-rw-r--r-- | arch/x86/kernel/entry_64.S | 2 | ||||
-rw-r--r-- | arch/x86/kernel/head_32.S | 8 | ||||
-rw-r--r-- | arch/x86/kernel/ioport.c | 20 | ||||
-rw-r--r-- | arch/x86/kernel/vmlinux.lds.S | 2 | ||||
-rw-r--r-- | arch/x86/lib/atomic64_386_32.S | 6 | ||||
-rw-r--r-- | arch/x86/lib/atomic64_cx8_32.S | 6 | ||||
-rw-r--r-- | arch/x86/lib/checksum_32.S | 63 | ||||
-rw-r--r-- | arch/x86/lib/rwsem_64.S | 56 | ||||
-rw-r--r-- | arch/x86/lib/semaphore_32.S | 38 | ||||
-rw-r--r-- | arch/x86/lib/thunk_32.S | 18 | ||||
-rw-r--r-- | arch/x86/lib/thunk_64.S | 27 | ||||
-rw-r--r-- | arch/x86/xen/xen-head.S | 4 |
22 files changed, 181 insertions, 344 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d5ed94d30aad..43214e303294 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -64,6 +64,8 @@ config X86 select HAVE_TEXT_POKE_SMP select HAVE_GENERIC_HARDIRQS select HAVE_SPARSE_IRQ + select GENERIC_FIND_FIRST_BIT + select GENERIC_FIND_NEXT_BIT select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP select USE_GENERIC_SMP_HELPERS if SMP diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 283c5a6a03a6..ed47e6e1747f 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -294,11 +294,6 @@ config X86_GENERIC endif -config X86_CPU - def_bool y - select GENERIC_FIND_FIRST_BIT - select GENERIC_FIND_NEXT_BIT - # # Define implied options from the CPU selection here config X86_INTERNODE_CACHE_SHIFT diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 2f0d7b450150..430312ba6e3f 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -128,26 +128,20 @@ ENTRY(ia32_sysenter_target) */ ENABLE_INTERRUPTS(CLBR_NONE) movl %ebp,%ebp /* zero extension */ - pushq $__USER32_DS - CFI_ADJUST_CFA_OFFSET 8 + pushq_cfi $__USER32_DS /*CFI_REL_OFFSET ss,0*/ - pushq %rbp - CFI_ADJUST_CFA_OFFSET 8 + pushq_cfi %rbp CFI_REL_OFFSET rsp,0 - pushfq - CFI_ADJUST_CFA_OFFSET 8 + pushfq_cfi /*CFI_REL_OFFSET rflags,0*/ movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d CFI_REGISTER rip,r10 - pushq $__USER32_CS - CFI_ADJUST_CFA_OFFSET 8 + pushq_cfi $__USER32_CS /*CFI_REL_OFFSET cs,0*/ movl %eax, %eax - pushq %r10 - CFI_ADJUST_CFA_OFFSET 8 + pushq_cfi %r10 CFI_REL_OFFSET rip,0 - pushq %rax - CFI_ADJUST_CFA_OFFSET 8 + pushq_cfi %rax cld SAVE_ARGS 0,0,1 /* no need to do an access_ok check here because rbp has been @@ -184,11 +178,9 @@ sysexit_from_sys_call: xorq %r9,%r9 xorq %r10,%r10 xorq %r11,%r11 - popfq - CFI_ADJUST_CFA_OFFSET -8 + popfq_cfi /*CFI_RESTORE rflags*/ - popq %rcx /* User %esp */ - CFI_ADJUST_CFA_OFFSET -8 + popq_cfi %rcx /* User %esp */ CFI_REGISTER rsp,rcx TRACE_IRQS_ON ENABLE_INTERRUPTS_SYSEXIT32 @@ -423,8 +415,7 @@ ENTRY(ia32_syscall) */ ENABLE_INTERRUPTS(CLBR_NONE) movl %eax,%eax - pushq %rax - CFI_ADJUST_CFA_OFFSET 8 + pushq_cfi %rax cld /* note the registers are not zero extended to the sf. this could be a problem. */ diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h index 06850a7194e1..2c6fc9e62812 100644 --- a/arch/x86/include/asm/frame.h +++ b/arch/x86/include/asm/frame.h @@ -7,14 +7,12 @@ frame pointer later */ #ifdef CONFIG_FRAME_POINTER .macro FRAME - pushl %ebp - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ebp CFI_REL_OFFSET ebp,0 movl %esp,%ebp .endm .macro ENDFRAME - popl %ebp - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ebp CFI_RESTORE ebp .endm #else diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h index 33ecc3ea8782..12569e691ce3 100644 --- a/arch/x86/include/asm/system.h +++ b/arch/x86/include/asm/system.h @@ -98,8 +98,6 @@ do { \ */ #define HAVE_DISABLE_HLT #else -#define __SAVE(reg, offset) "movq %%" #reg ",(14-" #offset ")*8(%%rsp)\n\t" -#define __RESTORE(reg, offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t" /* frame pointer must be last for get_wchan */ #define SAVE_CONTEXT "pushf ; pushq %%rbp ; movq %%rsi,%%rbp\n\t" diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c index cfa82c899f47..4f13fafc5264 100644 --- a/arch/x86/kernel/asm-offsets.c +++ b/arch/x86/kernel/asm-offsets.c @@ -1,5 +1,70 @@ +/* + * Generate definitions needed by assembly language modules. + * This code generates raw asm output which is post-processed to extract + * and format the required data. + */ +#define COMPILE_OFFSETS + +#include <linux/crypto.h> +#include <linux/sched.h> +#include <linux/stddef.h> +#include <linux/hardirq.h> +#include <linux/suspend.h> +#include <linux/kbuild.h> +#include <asm/processor.h> +#include <asm/thread_info.h> +#include <asm/sigframe.h> +#include <asm/bootparam.h> +#include <asm/suspend.h> + +#ifdef CONFIG_XEN +#include <xen/interface/xen.h> +#endif + #ifdef CONFIG_X86_32 # include "asm-offsets_32.c" #else # include "asm-offsets_64.c" #endif + +void common(void) { + BLANK(); + OFFSET(TI_flags, thread_info, flags); + OFFSET(TI_status, thread_info, status); + OFFSET(TI_addr_limit, thread_info, addr_limit); + OFFSET(TI_preempt_count, thread_info, preempt_count); + + BLANK(); + OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); + + BLANK(); + OFFSET(pbe_address, pbe, address); + OFFSET(pbe_orig_address, pbe, orig_address); + OFFSET(pbe_next, pbe, next); + +#ifdef CONFIG_PARAVIRT + BLANK(); + OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled); + OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops); + OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops); + OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); + OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); + OFFSET(PV_CPU_iret, pv_cpu_ops, iret); + OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); + OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); + OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2); +#endif + +#ifdef CONFIG_XEN + BLANK(); + OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); + OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); +#endif + + BLANK(); + OFFSET(BP_scratch, boot_params, scratch); + OFFSET(BP_loadflags, boot_params, hdr.loadflags); + OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch); + OFFSET(BP_version, boot_params, hdr.version); + OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment); +} diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c index 1a4088dda37a..c29d631af6fc 100644 --- a/arch/x86/kernel/asm-offsets_32.c +++ b/arch/x86/kernel/asm-offsets_32.c @@ -1,26 +1,4 @@ -/* - * Generate definitions needed by assembly language modules. - * This code generates raw asm output which is post-processed - * to extract and format the required data. - */ - -#include <linux/crypto.h> -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/personality.h> -#include <linux/suspend.h> -#include <linux/kbuild.h> #include <asm/ucontext.h> -#include <asm/sigframe.h> -#include <asm/pgtable.h> -#include <asm/fixmap.h> -#include <asm/processor.h> -#include <asm/thread_info.h> -#include <asm/bootparam.h> -#include <asm/elf.h> -#include <asm/suspend.h> - -#include <xen/interface/xen.h> #include <linux/lguest.h> #include "../../../drivers/lguest/lg.h" @@ -51,21 +29,10 @@ void foo(void) OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id); BLANK(); - OFFSET(TI_task, thread_info, task); - OFFSET(TI_exec_domain, thread_info, exec_domain); - OFFSET(TI_flags, thread_info, flags); - OFFSET(TI_status, thread_info, status); - OFFSET(TI_preempt_count, thread_info, preempt_count); - OFFSET(TI_addr_limit, thread_info, addr_limit); - OFFSET(TI_restart_block, thread_info, restart_block); OFFSET(TI_sysenter_return, thread_info, sysenter_return); OFFSET(TI_cpu, thread_info, cpu); BLANK(); - OFFSET(GDS_size, desc_ptr, size); - OFFSET(GDS_address, desc_ptr, address); - BLANK(); - OFFSET(PT_EBX, pt_regs, bx); OFFSET(PT_ECX, pt_regs, cx); OFFSET(PT_EDX, pt_regs, dx); @@ -85,42 +52,13 @@ void foo(void) OFFSET(PT_OLDSS, pt_regs, ss); BLANK(); - OFFSET(EXEC_DOMAIN_handler, exec_domain, handler); OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext); BLANK(); - OFFSET(pbe_address, pbe, address); - OFFSET(pbe_orig_address, pbe, orig_address); - OFFSET(pbe_next, pbe, next); - /* Offset from the sysenter stack to tss.sp0 */ DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) - sizeof(struct tss_struct)); - DEFINE(PAGE_SIZE_asm, PAGE_SIZE); - DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); - DEFINE(THREAD_SIZE_asm, THREAD_SIZE); - - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); - -#ifdef CONFIG_PARAVIRT - BLANK(); - OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled); - OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops); - OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops); - OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); - OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); - OFFSET(PV_CPU_iret, pv_cpu_ops, iret); - OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); - OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); -#endif - -#ifdef CONFIG_XEN - BLANK(); - OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); - OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); -#endif - #if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE) BLANK(); OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled); @@ -139,11 +77,4 @@ void foo(void) OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode); OFFSET(LGUEST_PAGES_regs, lguest_pages, regs); #endif - - BLANK(); - OFFSET(BP_scratch, boot_params, scratch); - OFFSET(BP_loadflags, boot_params, hdr.loadflags); - OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch); - OFFSET(BP_version, boot_params, hdr.version); - OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment); } diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 4a6aeedcd965..e72a1194af22 100644 --- a/arch/x86/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c @@ -1,27 +1,4 @@ -/* - * Generate definitions needed by assembly language modules. - * This code generates raw asm output which is post-processed to extract - * and format the required data. - */ -#define COMPILE_OFFSETS - -#include <linux/crypto.h> -#include <linux/sched.h> -#include <linux/stddef.h> -#include <linux/errno.h> -#include <linux/hardirq.h> -#include <linux/suspend.h> -#include <linux/kbuild.h> -#include <asm/processor.h> -#include <asm/segment.h> -#include <asm/thread_info.h> #include <asm/ia32.h> -#include <asm/bootparam.h> -#include <asm/suspend.h> - -#include <xen/interface/xen.h> - -#include <asm/sigframe.h> #define __NO_STUBS 1 #undef __SYSCALL @@ -33,41 +10,19 @@ static char syscalls[] = { int main(void) { -#define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry)) - ENTRY(state); - ENTRY(flags); - ENTRY(pid); - BLANK(); -#undef ENTRY -#define ENTRY(entry) DEFINE(TI_ ## entry, offsetof(struct thread_info, entry)) - ENTRY(flags); - ENTRY(addr_limit); - ENTRY(preempt_count); - ENTRY(status); -#ifdef CONFIG_IA32_EMULATION - ENTRY(sysenter_return); -#endif - BLANK(); -#undef ENTRY #ifdef CONFIG_PARAVIRT - BLANK(); - OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled); - OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops); - OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops); - OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); - OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame); - OFFSET(PV_CPU_iret, pv_cpu_ops, iret); OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32); OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64); - OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs); - OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2); + BLANK(); #endif - #ifdef CONFIG_IA32_EMULATION -#define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry)) + OFFSET(TI_sysenter_return, thread_info, sysenter_return); + BLANK(); + +#define ENTRY(entry) OFFSET(IA32_SIGCONTEXT_ ## entry, sigcontext_ia32, entry) ENTRY(ax); ENTRY(bx); ENTRY(cx); @@ -79,15 +34,12 @@ int main(void) ENTRY(ip); BLANK(); #undef ENTRY - DEFINE(IA32_RT_SIGFRAME_sigcontext, - offsetof (struct rt_sigframe_ia32, uc.uc_mcontext)); + + OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext); BLANK(); #endif - DEFINE(pbe_address, offsetof(struct pbe, address)); - DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address)); - DEFINE(pbe_next, offsetof(struct pbe, next)); - BLANK(); -#define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry)) + +#define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry) ENTRY(bx); ENTRY(bx); ENTRY(cx); @@ -107,7 +59,8 @@ int main(void) ENTRY(flags); BLANK(); #undef ENTRY -#define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry)) + +#define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry) ENTRY(cr0); ENTRY(cr2); ENTRY(cr3); @@ -115,26 +68,11 @@ int main(void) ENTRY(cr8); BLANK(); #undef ENTRY - DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist)); - BLANK(); - DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); - BLANK(); - DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); + OFFSET(TSS_ist, tss_struct, x86_tss.ist); BLANK(); - OFFSET(BP_scratch, boot_params, scratch); - OFFSET(BP_loadflags, boot_params, hdr.loadflags); - OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch); - OFFSET(BP_version, boot_params, hdr.version); - OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment); - BLANK(); - DEFINE(PAGE_SIZE_asm, PAGE_SIZE); -#ifdef CONFIG_XEN - BLANK(); - OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); - OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); -#undef ENTRY -#endif + DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); + return 0; } diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 1d59834396bd..5d98c46f876d 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -675,7 +675,7 @@ void __init early_cpu_init(void) const struct cpu_dev *const *cdev; int count = 0; -#ifdef PROCESSOR_SELECT +#ifdef CONFIG_PROCESSOR_SELECT printk(KERN_INFO "KERNEL supported cpus:\n"); #endif @@ -687,7 +687,7 @@ void __init early_cpu_init(void) cpu_devs[count] = cpudev; count++; -#ifdef PROCESSOR_SELECT +#ifdef CONFIG_PROCESSOR_SELECT { unsigned int j; diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index f5accf8eaa78..fa41f7298c84 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -397,7 +397,7 @@ sysenter_past_esp: * A tiny bit of offset fixup is necessary - 4*4 means the 4 words * pushed above; +8 corresponds to copy_thread's esp0 setting. */ - pushl_cfi ((TI_sysenter_return)-THREAD_SIZE_asm+8+4*4)(%esp) + pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp) CFI_REL_OFFSET eip, 0 pushl_cfi %eax @@ -1411,8 +1411,7 @@ END(general_protection) #ifdef CONFIG_KVM_GUEST ENTRY(async_page_fault) RING0_EC_FRAME - pushl $do_async_page_fault - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi $do_async_page_fault jmp error_code CFI_ENDPROC END(apf_page_fault) diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 0a0ed794edb2..c32cbbcff7b9 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -1250,7 +1250,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs) decl PER_CPU_VAR(irq_count) jmp error_exit CFI_ENDPROC -END(do_hypervisor_callback) +END(xen_do_hypervisor_callback) /* * Hypervisor uses this for application faults while it executes. diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 767d6c43de37..187aa63b321f 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -73,7 +73,7 @@ MAPPING_BEYOND_END = PAGE_TABLE_SIZE(LOWMEM_PAGES) << PAGE_SHIFT */ KERNEL_PAGES = LOWMEM_PAGES -INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE_asm +INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE RESERVE_BRK(pagetables, INIT_MAP_SIZE) /* @@ -623,7 +623,7 @@ ENTRY(initial_code) * BSS section */ __PAGE_ALIGNED_BSS - .align PAGE_SIZE_asm + .align PAGE_SIZE #ifdef CONFIG_X86_PAE initial_pg_pmd: .fill 1024*KPMDS,4,0 @@ -644,7 +644,7 @@ ENTRY(swapper_pg_dir) #ifdef CONFIG_X86_PAE __PAGE_ALIGNED_DATA /* Page-aligned for the benefit of paravirt? */ - .align PAGE_SIZE_asm + .align PAGE_SIZE ENTRY(initial_page_table) .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */ # if KPMDS == 3 @@ -662,7 +662,7 @@ ENTRY(initial_page_table) # else # error "Kernel PMDs should be 1, 2 or 3" # endif - .align PAGE_SIZE_asm /* needs to be page-sized too */ + .align PAGE_SIZE /* needs to be page-sized too */ #endif .data diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c index 8eec0ec59af2..8c968974253d 100644 --- a/arch/x86/kernel/ioport.c +++ b/arch/x86/kernel/ioport.c @@ -14,22 +14,9 @@ #include <linux/slab.h> #include <linux/thread_info.h> #include <linux/syscalls.h> +#include <linux/bitmap.h> #include <asm/syscalls.h> -/* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */ -static void set_bitmap(unsigned long *bitmap, unsigned int base, - unsigned int extent, int new_value) -{ - unsigned int i; - - for (i = base; i < base + extent; i++) { - if (new_value) - __set_bit(i, bitmap); - else - __clear_bit(i, bitmap); - } -} - /* * this changes the io permissions bitmap in the current task. */ @@ -69,7 +56,10 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) */ tss = &per_cpu(init_tss, get_cpu()); - set_bitmap(t->io_bitmap_ptr, from, num, !turn_on); + if (turn_on) + bitmap_clear(t->io_bitmap_ptr, from, num); + else + bitmap_set(t->io_bitmap_ptr, from, num); /* * Search for a (possibly new) maximum. This is simple and stupid, diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 6d4341d5c52a..0381e1f3baed 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -306,7 +306,7 @@ SECTIONS } #if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) - PERCPU(THREAD_SIZE) + PERCPU(PAGE_SIZE) #endif . = ALIGN(PAGE_SIZE); diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S index 2cda60a06e65..e8e7e0d06f42 100644 --- a/arch/x86/lib/atomic64_386_32.S +++ b/arch/x86/lib/atomic64_386_32.S @@ -15,14 +15,12 @@ /* if you want SMP support, implement these with real spinlocks */ .macro LOCK reg - pushfl - CFI_ADJUST_CFA_OFFSET 4 + pushfl_cfi cli .endm .macro UNLOCK reg - popfl - CFI_ADJUST_CFA_OFFSET -4 + popfl_cfi .endm #define BEGIN(op) \ diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S index 71e080de3352..391a083674b4 100644 --- a/arch/x86/lib/atomic64_cx8_32.S +++ b/arch/x86/lib/atomic64_cx8_32.S @@ -14,14 +14,12 @@ #include <asm/dwarf2.h> .macro SAVE reg - pushl %\reg - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %\reg CFI_REL_OFFSET \reg, 0 .endm .macro RESTORE reg - popl %\reg - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %\reg CFI_RESTORE \reg .endm diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S index adbccd0bbb78..78d16a554db0 100644 --- a/arch/x86/lib/checksum_32.S +++ b/arch/x86/lib/checksum_32.S @@ -50,11 +50,9 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum) */ ENTRY(csum_partial) CFI_STARTPROC - pushl %esi - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %esi CFI_REL_OFFSET esi, 0 - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ebx CFI_REL_OFFSET ebx, 0 movl 20(%esp),%eax # Function arg: unsigned int sum movl 16(%esp),%ecx # Function arg: int len @@ -132,11 +130,9 @@ ENTRY(csum_partial) jz 8f roll $8, %eax 8: - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ebx CFI_RESTORE ebx - popl %esi - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %esi CFI_RESTORE esi ret CFI_ENDPROC @@ -148,11 +144,9 @@ ENDPROC(csum_partial) ENTRY(csum_partial) CFI_STARTPROC - pushl %esi - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %esi CFI_REL_OFFSET esi, 0 - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ebx CFI_REL_OFFSET ebx, 0 movl 20(%esp),%eax # Function arg: unsigned int sum movl 16(%esp),%ecx # Function arg: int len @@ -260,11 +254,9 @@ ENTRY(csum_partial) jz 90f roll $8, %eax 90: - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ebx CFI_RESTORE ebx - popl %esi - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %esi CFI_RESTORE esi ret CFI_ENDPROC @@ -309,14 +301,11 @@ ENTRY(csum_partial_copy_generic) CFI_STARTPROC subl $4,%esp CFI_ADJUST_CFA_OFFSET 4 - pushl %edi - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %edi CFI_REL_OFFSET edi, 0 - pushl %esi - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %esi CFI_REL_OFFSET esi, 0 - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ebx CFI_REL_OFFSET ebx, 0 movl ARGBASE+16(%esp),%eax # sum movl ARGBASE+12(%esp),%ecx # len @@ -426,17 +415,13 @@ DST( movb %cl, (%edi) ) .previous - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ebx CFI_RESTORE ebx - popl %esi - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %esi CFI_RESTORE esi - popl %edi - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %edi CFI_RESTORE edi - popl %ecx # equivalent to addl $4,%esp - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ecx # equivalent to addl $4,%esp ret CFI_ENDPROC ENDPROC(csum_partial_copy_generic) @@ -459,14 +444,11 @@ ENDPROC(csum_partial_copy_generic) ENTRY(csum_partial_copy_generic) CFI_STARTPROC - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ebx CFI_REL_OFFSET ebx, 0 - pushl %edi - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %edi CFI_REL_OFFSET edi, 0 - pushl %esi - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %esi CFI_REL_OFFSET esi, 0 movl ARGBASE+4(%esp),%esi #src movl ARGBASE+8(%esp),%edi #dst @@ -527,14 +509,11 @@ DST( movb %dl, (%edi) ) jmp 7b .previous - popl %esi - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %esi CFI_RESTORE esi - popl %edi - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %edi CFI_RESTORE edi - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ebx CFI_RESTORE ebx ret CFI_ENDPROC diff --git a/arch/x86/lib/rwsem_64.S b/arch/x86/lib/rwsem_64.S index 41fcf00e49df..67743977398b 100644 --- a/arch/x86/lib/rwsem_64.S +++ b/arch/x86/lib/rwsem_64.S @@ -23,43 +23,50 @@ #include <asm/dwarf2.h> #define save_common_regs \ - pushq %rdi; \ - pushq %rsi; \ - pushq %rcx; \ - pushq %r8; \ - pushq %r9; \ - pushq %r10; \ - pushq %r11 + pushq_cfi %rdi; CFI_REL_OFFSET rdi, 0; \ + pushq_cfi %rsi; CFI_REL_OFFSET rsi, 0; \ + pushq_cfi %rcx; CFI_REL_OFFSET rcx, 0; \ + pushq_cfi %r8; CFI_REL_OFFSET r8, 0; \ + pushq_cfi %r9; CFI_REL_OFFSET r9, 0; \ + pushq_cfi %r10; CFI_REL_OFFSET r10, 0; \ + pushq_cfi %r11; CFI_REL_OFFSET r11, 0 #define restore_common_regs \ - popq %r11; \ - popq %r10; \ - popq %r9; \ - popq %r8; \ - popq %rcx; \ - popq %rsi; \ - popq %rdi + popq_cfi %r11; CFI_RESTORE r11; \ + popq_cfi %r10; CFI_RESTORE r10; \ + popq_cfi %r9; CFI_RESTORE r9; \ + popq_cfi %r8; CFI_RESTORE r8; \ + popq_cfi %rcx; CFI_RESTORE rcx; \ + popq_cfi %rsi; CFI_RESTORE rsi; \ + popq_cfi %rdi; CFI_RESTORE rdi /* Fix up special calling conventions */ ENTRY(call_rwsem_down_read_failed) + CFI_STARTPROC save_common_regs - pushq %rdx + pushq_cfi %rdx + CFI_REL_OFFSET rdx, 0 movq %rax,%rdi call rwsem_down_read_failed - popq %rdx + popq_cfi %rdx + CFI_RESTORE rdx restore_common_regs ret - ENDPROC(call_rwsem_down_read_failed) + CFI_ENDPROC +ENDPROC(call_rwsem_down_read_failed) ENTRY(call_rwsem_down_write_failed) + CFI_STARTPROC save_common_regs movq %rax,%rdi call rwsem_down_write_failed restore_common_regs ret - ENDPROC(call_rwsem_down_write_failed) + CFI_ENDPROC +ENDPROC(call_rwsem_down_write_failed) ENTRY(call_rwsem_wake) + CFI_STARTPROC decl %edx /* do nothing if still outstanding active readers */ jnz 1f save_common_regs @@ -67,15 +74,20 @@ ENTRY(call_rwsem_wake) call rwsem_wake restore_common_regs 1: ret - ENDPROC(call_rwsem_wake) + CFI_ENDPROC +ENDPROC(call_rwsem_wake) /* Fix up special calling conventions */ ENTRY(call_rwsem_downgrade_wake) + CFI_STARTPROC save_common_regs - pushq %rdx + pushq_cfi %rdx + CFI_REL_OFFSET rdx, 0 movq %rax,%rdi call rwsem_downgrade_wake - popq %rdx + popq_cfi %rdx + CFI_RESTORE rdx restore_common_regs ret - ENDPROC(call_rwsem_downgrade_wake) + CFI_ENDPROC +ENDPROC(call_rwsem_downgrade_wake) diff --git a/arch/x86/lib/semaphore_32.S b/arch/x86/lib/semaphore_32.S index 648fe4741782..06691daa4108 100644 --- a/arch/x86/lib/semaphore_32.S +++ b/arch/x86/lib/semaphore_32.S @@ -36,7 +36,7 @@ */ #ifdef CONFIG_SMP ENTRY(__write_lock_failed) - CFI_STARTPROC simple + CFI_STARTPROC FRAME 2: LOCK_PREFIX addl $ RW_LOCK_BIAS,(%eax) @@ -74,29 +74,23 @@ ENTRY(__read_lock_failed) /* Fix up special calling conventions */ ENTRY(call_rwsem_down_read_failed) CFI_STARTPROC - push %ecx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ecx CFI_REL_OFFSET ecx,0 - push %edx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %edx CFI_REL_OFFSET edx,0 call rwsem_down_read_failed - pop %edx - CFI_ADJUST_CFA_OFFSET -4 - pop %ecx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %edx + popl_cfi %ecx ret CFI_ENDPROC ENDPROC(call_rwsem_down_read_failed) ENTRY(call_rwsem_down_write_failed) CFI_STARTPROC - push %ecx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ecx CFI_REL_OFFSET ecx,0 calll rwsem_down_write_failed - pop %ecx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ecx ret CFI_ENDPROC ENDPROC(call_rwsem_down_write_failed) @@ -105,12 +99,10 @@ ENTRY(call_rwsem_wake) CFI_STARTPROC decw %dx /* do nothing if still outstanding active readers */ jnz 1f - push %ecx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ecx CFI_REL_OFFSET ecx,0 call rwsem_wake - pop %ecx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %ecx 1: ret CFI_ENDPROC ENDPROC(call_rwsem_wake) @@ -118,17 +110,13 @@ ENTRY(call_rwsem_wake) /* Fix up special calling conventions */ ENTRY(call_rwsem_downgrade_wake) CFI_STARTPROC - push %ecx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %ecx CFI_REL_OFFSET ecx,0 - push %edx - CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %edx CFI_REL_OFFSET edx,0 call rwsem_downgrade_wake - pop %edx - CFI_ADJUST_CFA_OFFSET -4 - pop %ecx - CFI_ADJUST_CFA_OFFSET -4 + popl_cfi %edx + popl_cfi %ecx ret CFI_ENDPROC ENDPROC(call_rwsem_downgrade_wake) diff --git a/arch/x86/lib/thunk_32.S b/arch/x86/lib/thunk_32.S index 650b11e00ecc..2930ae05d773 100644 --- a/arch/x86/lib/thunk_32.S +++ b/arch/x86/lib/thunk_32.S @@ -7,24 +7,6 @@ #include <linux/linkage.h> -#define ARCH_TRACE_IRQS_ON \ - pushl %eax; \ - pushl %ecx; \ - pushl %edx; \ - call trace_hardirqs_on; \ - popl %edx; \ - popl %ecx; \ - popl %eax; - -#define ARCH_TRACE_IRQS_OFF \ - pushl %eax; \ - pushl %ecx; \ - pushl %edx; \ - call trace_hardirqs_off; \ - popl %edx; \ - popl %ecx; \ - popl %eax; - #ifdef CONFIG_TRACE_IRQFLAGS /* put return address in eax (arg1) */ .macro thunk_ra name,func diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S index bf9a7d5a5428..782b082c9ff7 100644 --- a/arch/x86/lib/thunk_64.S +++ b/arch/x86/lib/thunk_64.S @@ -22,26 +22,6 @@ CFI_ENDPROC .endm - /* rdi: arg1 ... normal C conventions. rax is passed from C. */ - .macro thunk_retrax name,func - .globl \name -\name: - CFI_STARTPROC - SAVE_ARGS - call \func - jmp restore_norax - CFI_ENDPROC - .endm - - - .section .sched.text, "ax" -#ifdef CONFIG_RWSEM_XCHGADD_ALGORITHM - thunk rwsem_down_read_failed_thunk,rwsem_down_read_failed - thunk rwsem_down_write_failed_thunk,rwsem_down_write_failed - thunk rwsem_wake_thunk,rwsem_wake - thunk rwsem_downgrade_thunk,rwsem_downgrade_wake -#endif - #ifdef CONFIG_TRACE_IRQFLAGS /* put return address in rdi (arg1) */ .macro thunk_ra name,func @@ -72,10 +52,3 @@ restore: RESTORE_ARGS ret CFI_ENDPROC - - CFI_STARTPROC - SAVE_ARGS -restore_norax: - RESTORE_ARGS 1 - ret - CFI_ENDPROC diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S index 1a5ff24e29c0..aaa7291c9259 100644 --- a/arch/x86/xen/xen-head.S +++ b/arch/x86/xen/xen-head.S @@ -28,9 +28,9 @@ ENTRY(startup_xen) __FINIT .pushsection .text - .align PAGE_SIZE_asm + .align PAGE_SIZE ENTRY(hypercall_page) - .skip PAGE_SIZE_asm + .skip PAGE_SIZE .popsection ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux") |