diff options
Diffstat (limited to 'arch')
33 files changed, 229 insertions, 153 deletions
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h index a611ad3153c7..b6132aa95dc0 100644 --- a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h @@ -463,6 +463,9 @@ GPIO76_LCD_PCLK, \ GPIO77_LCD_BIAS +/* these enable a work-around for a hw bug in pxa27x during ac97 warm reset */ +#define GPIO113_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO113, AF0, DEFAULT) +#define GPIO95_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO95, AF0, DEFAULT) extern int keypad_set_wake(unsigned int on); #endif /* __ASM_ARCH_MFP_PXA27X_H */ diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 8047ee0effc5..616cb87b6179 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -47,9 +47,9 @@ void pxa27x_clear_otgph(void) EXPORT_SYMBOL(pxa27x_clear_otgph); static unsigned long ac97_reset_config[] = { - GPIO113_GPIO, + GPIO113_AC97_nRESET_GPIO_HIGH, GPIO113_AC97_nRESET, - GPIO95_GPIO, + GPIO95_AC97_nRESET_GPIO_HIGH, GPIO95_AC97_nRESET, }; diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index aa03f2e13385..e70001cfa05b 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -6,6 +6,7 @@ config MN10300 select ARCH_WANT_IPC_PARSE_VERSION select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_KGDB + select GENERIC_ATOMIC64 select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA diff --git a/arch/powerpc/include/uapi/asm/kvm_para.h b/arch/powerpc/include/uapi/asm/kvm_para.h index ed0e0254b47f..e3af3286a068 100644 --- a/arch/powerpc/include/uapi/asm/kvm_para.h +++ b/arch/powerpc/include/uapi/asm/kvm_para.h @@ -78,7 +78,7 @@ struct kvm_vcpu_arch_shared { #define KVM_HCALL_TOKEN(num) _EV_HCALL_TOKEN(EV_KVM_VENDOR_ID, num) -#include <uapi/asm/epapr_hcalls.h> +#include <asm/epapr_hcalls.h> #define KVM_FEATURE_MAGIC_PAGE 1 diff --git a/arch/powerpc/kvm/book3s_hv_ras.c b/arch/powerpc/kvm/book3s_hv_ras.c index 35f3cf0269b3..a353c485808c 100644 --- a/arch/powerpc/kvm/book3s_hv_ras.c +++ b/arch/powerpc/kvm/book3s_hv_ras.c @@ -79,7 +79,9 @@ static void flush_tlb_power7(struct kvm_vcpu *vcpu) static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu) { unsigned long srr1 = vcpu->arch.shregs.msr; +#ifdef CONFIG_PPC_POWERNV struct opal_machine_check_event *opal_evt; +#endif long handled = 1; if (srr1 & SRR1_MC_LDSTERR) { @@ -117,6 +119,7 @@ static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu) handled = 0; } +#ifdef CONFIG_PPC_POWERNV /* * See if OPAL has already handled the condition. * We assume that if the condition is recovered then OPAL @@ -131,6 +134,7 @@ static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu) if (handled) opal_evt->in_use = 0; +#endif return handled; } diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h index de015d85e3e5..bb9bdcd20864 100644 --- a/arch/s390/include/asm/dma.h +++ b/arch/s390/include/asm/dma.h @@ -10,4 +10,10 @@ */ #define MAX_DMA_ADDRESS 0x80000000 +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif + #endif /* _ASM_S390_DMA_H */ diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 16c3eb164f4f..27cb32185ce1 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -85,6 +85,11 @@ static inline void iounmap(volatile void __iomem *addr) #define __raw_writel zpci_write_u32 #define __raw_writeq zpci_write_u64 +#define readb_relaxed readb +#define readw_relaxed readw +#define readl_relaxed readl +#define readq_relaxed readq + #endif /* CONFIG_PCI */ #include <asm-generic/io.h> diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index e6972f85d2b0..7def77302d63 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -2,43 +2,61 @@ #define _ASM_IRQ_H #include <linux/hardirq.h> +#include <linux/percpu.h> +#include <linux/cache.h> #include <linux/types.h> -enum interruption_class { +enum interruption_main_class { EXTERNAL_INTERRUPT, IO_INTERRUPT, - EXTINT_CLK, - EXTINT_EXC, - EXTINT_EMS, - EXTINT_TMR, - EXTINT_TLA, - EXTINT_PFL, - EXTINT_DSD, - EXTINT_VRT, - EXTINT_SCP, - EXTINT_IUC, - EXTINT_CMS, - EXTINT_CMC, - EXTINT_CMR, - IOINT_CIO, - IOINT_QAI, - IOINT_DAS, - IOINT_C15, - IOINT_C70, - IOINT_TAP, - IOINT_VMR, - IOINT_LCS, - IOINT_CLW, - IOINT_CTC, - IOINT_APB, - IOINT_ADM, - IOINT_CSC, - IOINT_PCI, - IOINT_MSI, + NR_IRQS +}; + +enum interruption_class { + IRQEXT_CLK, + IRQEXT_EXC, + IRQEXT_EMS, + IRQEXT_TMR, + IRQEXT_TLA, + IRQEXT_PFL, + IRQEXT_DSD, + IRQEXT_VRT, + IRQEXT_SCP, + IRQEXT_IUC, + IRQEXT_CMS, + IRQEXT_CMC, + IRQEXT_CMR, + IRQIO_CIO, + IRQIO_QAI, + IRQIO_DAS, + IRQIO_C15, + IRQIO_C70, + IRQIO_TAP, + IRQIO_VMR, + IRQIO_LCS, + IRQIO_CLW, + IRQIO_CTC, + IRQIO_APB, + IRQIO_ADM, + IRQIO_CSC, + IRQIO_PCI, + IRQIO_MSI, NMI_NMI, - NR_IRQS, + CPU_RST, + NR_ARCH_IRQS }; +struct irq_stat { + unsigned int irqs[NR_ARCH_IRQS]; +}; + +DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); + +static __always_inline void inc_irq_stat(enum interruption_class irq) +{ + __get_cpu_var(irq_stat).irqs[irq]++; +} + struct ext_code { unsigned short subcode; unsigned short code; diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h index 63e6078699f1..864f693c237f 100644 --- a/arch/s390/include/uapi/asm/unistd.h +++ b/arch/s390/include/uapi/asm/unistd.h @@ -279,7 +279,8 @@ #define __NR_process_vm_writev 341 #define __NR_s390_runtime_instr 342 #define __NR_kcmp 343 -#define NR_syscalls 344 +#define __NR_finit_module 344 +#define NR_syscalls 345 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 827e094a2f49..9b9a805656b5 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1659,3 +1659,9 @@ ENTRY(sys_kcmp_wrapper) llgfr %r5,%r5 # unsigned long llgfr %r6,%r6 # unsigned long jg sys_kcmp + +ENTRY(sys_finit_module_wrapper) + lgfr %r2,%r2 # int + llgtr %r3,%r3 # const char __user * + lgfr %r4,%r4 # int + jg sys_finit_module diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index ba500d8dc392..4e8215e0d4b6 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c @@ -1127,13 +1127,14 @@ debug_register_view(debug_info_t * id, struct debug_view *view) if (i == DEBUG_MAX_VIEWS) { pr_err("Registering view %s/%s would exceed the maximum " "number of views %i\n", id->name, view->name, i); - debugfs_remove(pde); rc = -1; } else { id->views[i] = view; id->debugfs_entries[i] = pde; } spin_unlock_irqrestore(&id->lock, flags); + if (rc) + debugfs_remove(pde); out: return rc; } @@ -1146,9 +1147,9 @@ EXPORT_SYMBOL(debug_register_view); int debug_unregister_view(debug_info_t * id, struct debug_view *view) { - int rc = 0; - int i; + struct dentry *dentry = NULL; unsigned long flags; + int i, rc = 0; if (!id) goto out; @@ -1160,10 +1161,12 @@ debug_unregister_view(debug_info_t * id, struct debug_view *view) if (i == DEBUG_MAX_VIEWS) rc = -1; else { - debugfs_remove(id->debugfs_entries[i]); + dentry = id->debugfs_entries[i]; id->views[i] = NULL; + id->debugfs_entries[i] = NULL; } spin_unlock_irqrestore(&id->lock, flags); + debugfs_remove(dentry); out: return rc; } diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index bf24293970ce..9df824ea1667 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -24,43 +24,65 @@ #include <asm/irq.h> #include "entry.h" +DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); +EXPORT_PER_CPU_SYMBOL_GPL(irq_stat); + struct irq_class { char *name; char *desc; }; -static const struct irq_class intrclass_names[] = { +/* + * The list of "main" irq classes on s390. This is the list of interrrupts + * that appear both in /proc/stat ("intr" line) and /proc/interrupts. + * Historically only external and I/O interrupts have been part of /proc/stat. + * We can't add the split external and I/O sub classes since the first field + * in the "intr" line in /proc/stat is supposed to be the sum of all other + * fields. + * Since the external and I/O interrupt fields are already sums we would end + * up with having a sum which accounts each interrupt twice. + */ +static const struct irq_class irqclass_main_desc[NR_IRQS] = { [EXTERNAL_INTERRUPT] = {.name = "EXT"}, - [IO_INTERRUPT] = {.name = "I/O"}, - [EXTINT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"}, - [EXTINT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"}, - [EXTINT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"}, - [EXTINT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"}, - [EXTINT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"}, - [EXTINT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, - [EXTINT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"}, - [EXTINT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"}, - [EXTINT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"}, - [EXTINT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"}, - [EXTINT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, - [EXTINT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, - [EXTINT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, - [IOINT_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, - [IOINT_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, - [IOINT_DAS] = {.name = "DAS", .desc = "[I/O] DASD"}, - [IOINT_C15] = {.name = "C15", .desc = "[I/O] 3215"}, - [IOINT_C70] = {.name = "C70", .desc = "[I/O] 3270"}, - [IOINT_TAP] = {.name = "TAP", .desc = "[I/O] Tape"}, - [IOINT_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"}, - [IOINT_LCS] = {.name = "LCS", .desc = "[I/O] LCS"}, - [IOINT_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"}, - [IOINT_CTC] = {.name = "CTC", .desc = "[I/O] CTC"}, - [IOINT_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, - [IOINT_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, - [IOINT_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, - [IOINT_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, - [IOINT_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, + [IO_INTERRUPT] = {.name = "I/O"} +}; + +/* + * The list of split external and I/O interrupts that appear only in + * /proc/interrupts. + * In addition this list contains non external / I/O events like NMIs. + */ +static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { + [IRQEXT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"}, + [IRQEXT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"}, + [IRQEXT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"}, + [IRQEXT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"}, + [IRQEXT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"}, + [IRQEXT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, + [IRQEXT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"}, + [IRQEXT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"}, + [IRQEXT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"}, + [IRQEXT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"}, + [IRQEXT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, + [IRQEXT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, + [IRQEXT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, + [IRQIO_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, + [IRQIO_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, + [IRQIO_DAS] = {.name = "DAS", .desc = "[I/O] DASD"}, + [IRQIO_C15] = {.name = "C15", .desc = "[I/O] 3215"}, + [IRQIO_C70] = {.name = "C70", .desc = "[I/O] 3270"}, + [IRQIO_TAP] = {.name = "TAP", .desc = "[I/O] Tape"}, + [IRQIO_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"}, + [IRQIO_LCS] = {.name = "LCS", .desc = "[I/O] LCS"}, + [IRQIO_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"}, + [IRQIO_CTC] = {.name = "CTC", .desc = "[I/O] CTC"}, + [IRQIO_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, + [IRQIO_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, + [IRQIO_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, + [IRQIO_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, + [IRQIO_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"}, + [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"}, }; /* @@ -68,30 +90,34 @@ static const struct irq_class intrclass_names[] = { */ int show_interrupts(struct seq_file *p, void *v) { - int i = *(loff_t *) v, j; + int irq = *(loff_t *) v; + int cpu; get_online_cpus(); - if (i == 0) { + if (irq == 0) { seq_puts(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); + for_each_online_cpu(cpu) + seq_printf(p, "CPU%d ", cpu); seq_putc(p, '\n'); } - - if (i < NR_IRQS) { - seq_printf(p, "%s: ", intrclass_names[i].name); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); -#endif - if (intrclass_names[i].desc) - seq_printf(p, " %s", intrclass_names[i].desc); - seq_putc(p, '\n'); - } + if (irq < NR_IRQS) { + seq_printf(p, "%s: ", irqclass_main_desc[irq].name); + for_each_online_cpu(cpu) + seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[irq]); + seq_putc(p, '\n'); + goto skip_arch_irqs; + } + for (irq = 0; irq < NR_ARCH_IRQS; irq++) { + seq_printf(p, "%s: ", irqclass_sub_desc[irq].name); + for_each_online_cpu(cpu) + seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]); + if (irqclass_sub_desc[irq].desc) + seq_printf(p, " %s", irqclass_sub_desc[irq].desc); + seq_putc(p, '\n'); + } +skip_arch_irqs: put_online_cpus(); - return 0; + return 0; } /* @@ -222,7 +248,7 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, /* Serve timer interrupts first. */ clock_comparator_work(); } - kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; + kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL); if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index a6daa5c5cdb0..7918fbea36bb 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -254,7 +254,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs) int umode; nmi_enter(); - kstat_cpu(smp_processor_id()).irqs[NMI_NMI]++; + inc_irq_stat(NMI_NMI); mci = (struct mci *) &S390_lowcore.mcck_interruption_code; mcck = &__get_cpu_var(cpu_mcck); umode = user_mode(regs); diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index c4e7269d4a09..86ec7447e1f5 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -229,7 +229,7 @@ static void cpumf_measurement_alert(struct ext_code ext_code, if (!(alert & CPU_MF_INT_CF_MASK)) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_CMC]++; + inc_irq_stat(IRQEXT_CMC); cpuhw = &__get_cpu_var(cpu_hw_events); /* Measurement alerts are shared and might happen when the PMU diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c index 61066f6f71a5..077a99389b07 100644 --- a/arch/s390/kernel/runtime_instr.c +++ b/arch/s390/kernel/runtime_instr.c @@ -71,7 +71,7 @@ static void runtime_instr_int_handler(struct ext_code ext_code, if (!(param32 & CPU_MF_INT_RI_MASK)) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_CMR]++; + inc_irq_stat(IRQEXT_CMR); if (!current->thread.ri_cb) return; diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 2568590973ad..a5360de85ec7 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -16,7 +16,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/errno.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/memblock.h> @@ -289,6 +289,7 @@ void machine_power_off(void) * Dummy power off function. */ void (*pm_power_off)(void) = machine_power_off; +EXPORT_SYMBOL_GPL(pm_power_off); static int __init early_parse_mem(char *p) { diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 0b45baa55438..7433a2f9e5cc 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -433,9 +433,9 @@ static void do_ext_call_interrupt(struct ext_code ext_code, cpu = smp_processor_id(); if (ext_code.code == 0x1202) - kstat_cpu(cpu).irqs[EXTINT_EXC]++; + inc_irq_stat(IRQEXT_EXC); else - kstat_cpu(cpu).irqs[EXTINT_EMS]++; + inc_irq_stat(IRQEXT_EMS); /* * handle bit signal external calls */ @@ -623,9 +623,10 @@ static struct sclp_cpu_info *smp_get_cpu_info(void) return info; } -static int smp_add_present_cpu(int cpu); +static int __cpuinit smp_add_present_cpu(int cpu); -static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add) +static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info, + int sysfs_add) { struct pcpu *pcpu; cpumask_t avail; @@ -708,6 +709,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid) pfault_init(); notify_cpu_starting(smp_processor_id()); set_cpu_online(smp_processor_id(), true); + inc_irq_stat(CPU_RST); local_irq_enable(); /* cpu_idle will call schedule for us */ cpu_idle(); @@ -985,7 +987,7 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self, return notifier_from_errno(err); } -static int smp_add_present_cpu(int cpu) +static int __cpuinit smp_add_present_cpu(int cpu) { struct cpu *c = &pcpu_devices[cpu].cpu; struct device *s = &c->dev; diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 48174850f3b0..6a6c61f94dd3 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -352,3 +352,4 @@ SYSCALL(sys_process_vm_readv,sys_process_vm_readv,compat_sys_process_vm_readv_wr SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper) SYSCALL(sys_ni_syscall,sys_s390_runtime_instr,sys_s390_runtime_instr_wrapper) SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper) +SYSCALL(sys_finit_module,sys_finit_module,sys_finit_module_wrapper) diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 7fcd690d42c7..aff0e350d776 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -168,7 +168,7 @@ static void clock_comparator_interrupt(struct ext_code ext_code, unsigned int param32, unsigned long param64) { - kstat_cpu(smp_processor_id()).irqs[EXTINT_CLK]++; + inc_irq_stat(IRQEXT_CLK); if (S390_lowcore.clock_comparator == -1ULL) set_clock_comparator(S390_lowcore.clock_comparator); } @@ -179,7 +179,7 @@ static void stp_timing_alert(struct stp_irq_parm *); static void timing_alert_interrupt(struct ext_code ext_code, unsigned int param32, unsigned long param64) { - kstat_cpu(smp_processor_id()).irqs[EXTINT_TLA]++; + inc_irq_stat(IRQEXT_TLA); if (param32 & 0x00c40000) etr_timing_alert((struct etr_irq_parm *) ¶m32); if (param32 & 0x00038000) diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index f1aba87cceb8..4b2e3e317004 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -10,6 +10,7 @@ #include <linux/bootmem.h> #include <linux/cpuset.h> #include <linux/device.h> +#include <linux/export.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/init.h> @@ -42,6 +43,7 @@ static struct mask_info socket_info; static struct mask_info book_info; struct cpu_topology_s390 cpu_topology[NR_CPUS]; +EXPORT_SYMBOL_GPL(cpu_topology); static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) { diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 42601d6e166f..2fb9e63b8fc4 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -569,7 +569,7 @@ static void pfault_interrupt(struct ext_code ext_code, subcode = ext_code.subcode; if ((subcode & 0xff00) != __SUBCODE_MASK) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++; + inc_irq_stat(IRQEXT_PFL); /* Get the token (= pid of the affected task). */ pid = sizeof(void *) == 4 ? param32 : param64; rcu_read_lock(); diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c index 0cb385da202c..b5b2916895e0 100644 --- a/arch/s390/oprofile/hwsampler.c +++ b/arch/s390/oprofile/hwsampler.c @@ -233,7 +233,7 @@ static void hws_ext_handler(struct ext_code ext_code, if (!(param32 & CPU_MF_INT_SF_MASK)) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_CMS]++; + inc_irq_stat(IRQEXT_CMS); atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32); if (hws_wq) diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index ff49427e9941..60e0372545d2 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -160,35 +160,6 @@ int pci_proc_domain(struct pci_bus *bus) } EXPORT_SYMBOL_GPL(pci_proc_domain); -/* Store PCI function information block */ -static int zpci_store_fib(struct zpci_dev *zdev, u8 *fc) -{ - struct zpci_fib *fib; - u8 status, cc; - - fib = (void *) get_zeroed_page(GFP_KERNEL); - if (!fib) - return -ENOMEM; - - do { - cc = __stpcifc(zdev->fh, 0, fib, &status); - if (cc == 2) { - msleep(ZPCI_INSN_BUSY_DELAY); - memset(fib, 0, PAGE_SIZE); - } - } while (cc == 2); - - if (cc) - pr_err_once("%s: cc: %u status: %u\n", - __func__, cc, status); - - /* Return PCI function controls */ - *fc = fib->fc; - - free_page((unsigned long) fib); - return (cc) ? -EIO : 0; -} - /* Modify PCI: Register adapter interruptions */ static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, u64 aibv) @@ -469,7 +440,7 @@ static void zpci_irq_handler(void *dont, void *need) int rescan = 0, max = aisb_max; struct zdev_irq_map *imap; - kstat_cpu(smp_processor_id()).irqs[IOINT_PCI]++; + inc_irq_stat(IRQIO_PCI); sbit = start; scan: @@ -481,7 +452,7 @@ scan: /* find vector bit */ imap = bucket->imap[sbit]; for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) { - kstat_cpu(smp_processor_id()).irqs[IOINT_MSI]++; + inc_irq_stat(IRQIO_MSI); clear_bit(63 - mbit, &imap->aibv); spin_lock(&imap->lock); diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index 6138468b420f..a547419907c3 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -13,8 +13,6 @@ #include <linux/pci.h> #include <asm/pci_dma.h> -static enum zpci_ioat_dtype zpci_ioat_dt = ZPCI_IOTA_RTTO; - static struct kmem_cache *dma_region_table_cache; static struct kmem_cache *dma_page_table_cache; diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h index cac719d1bc5c..62ced589bcf7 100644 --- a/arch/sparc/include/uapi/asm/unistd.h +++ b/arch/sparc/include/uapi/asm/unistd.h @@ -407,8 +407,9 @@ #define __NR_process_vm_writev 339 #define __NR_kern_features 340 #define __NR_kcmp 341 +#define __NR_finit_module 342 -#define NR_syscalls 342 +#define NR_syscalls 343 /* Bitmask values returned from kern_features system call. */ #define KERN_FEATURE_MIXED_MODE_STACK 0x00000001 diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 04bacce76fe6..baf4366e2d6a 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -378,7 +378,8 @@ static void apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) /* Cook up fake bus resources for SUNW,simba PCI bridges which lack * a proper 'ranges' property. */ -static void apb_fake_ranges(struct pci_dev *dev, struct pci_bus *bus, +static void apb_fake_ranges(struct pci_dev *dev, + struct pci_bus *bus, struct pci_pbm_info *pbm) { struct pci_bus_region region; @@ -403,13 +404,15 @@ static void apb_fake_ranges(struct pci_dev *dev, struct pci_bus *bus, pcibios_bus_to_resource(dev, res, ®ion); } -static void pci_of_scan_bus(struct pci_pbm_info *pbm, struct device_node *node, +static void pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, struct pci_bus *bus); #define GET_64BIT(prop, i) ((((u64) (prop)[(i)]) << 32) | (prop)[(i)+1]) static void of_scan_pci_bridge(struct pci_pbm_info *pbm, - struct device_node *node, struct pci_dev *dev) + struct device_node *node, + struct pci_dev *dev) { struct pci_bus *bus; const u32 *busrange, *ranges; @@ -500,7 +503,8 @@ after_ranges: pci_of_scan_bus(pbm, node, bus); } -static void pci_of_scan_bus(struct pci_pbm_info *pbm, struct device_node *node, +static void pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, struct pci_bus *bus) { struct device_node *child; diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c index b85238289717..c647634ead2b 100644 --- a/arch/sparc/kernel/pci_psycho.c +++ b/arch/sparc/kernel/pci_psycho.c @@ -366,7 +366,8 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void psycho_scan_bus(struct pci_pbm_info *pbm, struct device *parent) +static void psycho_scan_bus(struct pci_pbm_info *pbm, + struct device *parent) { pbm_config_busmastering(pbm); pbm->is_66mhz_capable = 0; diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index 531186d7c9ab..6f00d27e8dac 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -442,7 +442,8 @@ static void sabre_scan_bus(struct pci_pbm_info *pbm, struct device *parent) sabre_register_error_handlers(pbm); } -static void sabre_pbm_init(struct pci_pbm_info *pbm, struct platform_device *op) +static void sabre_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op) { psycho_pbm_init_common(pbm, op, "SABRE", PBM_CHIP_TYPE_SABRE); pbm->pci_afsr = pbm->controller_regs + SABRE_PIOAFSR; diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index 29e888158ae6..8f76f23dac38 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -1306,8 +1306,9 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm) } } -static int schizo_pbm_init(struct pci_pbm_info *pbm, struct platform_device *op, - u32 portid, int chip_type) +static int schizo_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 portid, + int chip_type) { const struct linux_prom64_registers *regs; struct device_node *dp = op->dev.of_node; diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 5147f574f125..6ac43c36bbbf 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -85,4 +85,4 @@ sys_call_table: /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev -/*340*/ .long sys_ni_syscall, sys_kcmp +/*340*/ .long sys_ni_syscall, sys_kcmp, sys_finit_module diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index cdbd9b817751..1009ecb92678 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -86,7 +86,7 @@ sys_call_table32: .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev -/*340*/ .word sys_kern_features, sys_kcmp +/*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module #endif /* CONFIG_COMPAT */ @@ -164,4 +164,4 @@ sys_call_table: .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev -/*340*/ .word sys_kern_features, sys_kcmp +/*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 08b973f64032..9c2bd8bd4b4c 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -43,6 +43,7 @@ #include <asm/apicdef.h> #include <asm/hypervisor.h> #include <asm/kvm_guest.h> +#include <asm/context_tracking.h> static int kvmapf = 1; @@ -121,6 +122,8 @@ void kvm_async_pf_task_wait(u32 token) struct kvm_task_sleep_node n, *e; DEFINE_WAIT(wait); + rcu_irq_enter(); + spin_lock(&b->lock); e = _find_apf_task(b, token); if (e) { @@ -128,6 +131,8 @@ void kvm_async_pf_task_wait(u32 token) hlist_del(&e->link); kfree(e); spin_unlock(&b->lock); + + rcu_irq_exit(); return; } @@ -152,13 +157,16 @@ void kvm_async_pf_task_wait(u32 token) /* * We cannot reschedule. So halt. */ + rcu_irq_exit(); native_safe_halt(); + rcu_irq_enter(); local_irq_disable(); } } if (!n.halted) finish_wait(&n.wq, &wait); + rcu_irq_exit(); return; } EXPORT_SYMBOL_GPL(kvm_async_pf_task_wait); @@ -252,10 +260,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code) break; case KVM_PV_REASON_PAGE_NOT_PRESENT: /* page is swapped out by the host. */ - rcu_irq_enter(); + exception_enter(regs); exit_idle(); kvm_async_pf_task_wait((u32)read_cr2()); - rcu_irq_exit(); + exception_exit(regs); break; case KVM_PV_REASON_PAGE_READY: rcu_irq_enter(); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 76f54461f7cb..c243b81e3c74 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -120,7 +120,7 @@ struct kvm_shared_msrs { }; static struct kvm_shared_msrs_global __read_mostly shared_msrs_global; -static DEFINE_PER_CPU(struct kvm_shared_msrs, shared_msrs); +static struct kvm_shared_msrs __percpu *shared_msrs; struct kvm_stats_debugfs_item debugfs_entries[] = { { "pf_fixed", VCPU_STAT(pf_fixed) }, @@ -191,10 +191,10 @@ static void kvm_on_user_return(struct user_return_notifier *urn) static void shared_msr_update(unsigned slot, u32 msr) { - struct kvm_shared_msrs *smsr; u64 value; + unsigned int cpu = smp_processor_id(); + struct kvm_shared_msrs *smsr = per_cpu_ptr(shared_msrs, cpu); - smsr = &__get_cpu_var(shared_msrs); /* only read, and nobody should modify it at this time, * so don't need lock */ if (slot >= shared_msrs_global.nr) { @@ -226,7 +226,8 @@ static void kvm_shared_msr_cpu_online(void) void kvm_set_shared_msr(unsigned slot, u64 value, u64 mask) { - struct kvm_shared_msrs *smsr = &__get_cpu_var(shared_msrs); + unsigned int cpu = smp_processor_id(); + struct kvm_shared_msrs *smsr = per_cpu_ptr(shared_msrs, cpu); if (((value ^ smsr->values[slot].curr) & mask) == 0) return; @@ -242,7 +243,8 @@ EXPORT_SYMBOL_GPL(kvm_set_shared_msr); static void drop_user_return_notifiers(void *ignore) { - struct kvm_shared_msrs *smsr = &__get_cpu_var(shared_msrs); + unsigned int cpu = smp_processor_id(); + struct kvm_shared_msrs *smsr = per_cpu_ptr(shared_msrs, cpu); if (smsr->registered) kvm_on_user_return(&smsr->urn); @@ -5233,9 +5235,16 @@ int kvm_arch_init(void *opaque) goto out; } + r = -ENOMEM; + shared_msrs = alloc_percpu(struct kvm_shared_msrs); + if (!shared_msrs) { + printk(KERN_ERR "kvm: failed to allocate percpu kvm_shared_msrs\n"); + goto out; + } + r = kvm_mmu_module_init(); if (r) - goto out; + goto out_free_percpu; kvm_set_mmio_spte_mask(); kvm_init_msr_list(); @@ -5258,6 +5267,8 @@ int kvm_arch_init(void *opaque) return 0; +out_free_percpu: + free_percpu(shared_msrs); out: return r; } @@ -5275,6 +5286,7 @@ void kvm_arch_exit(void) #endif kvm_x86_ops = NULL; kvm_mmu_module_exit(); + free_percpu(shared_msrs); } int kvm_emulate_halt(struct kvm_vcpu *vcpu) |