diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/pmc.h | 16 | ||||
| -rw-r--r-- | arch/powerpc/kernel/perf_counter.c | 13 | ||||
| -rw-r--r-- | arch/powerpc/kernel/sysfs.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 4 |
4 files changed, 20 insertions, 16 deletions
diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h index d6a616a1b3e..ccc68b50d05 100644 --- a/arch/powerpc/include/asm/pmc.h +++ b/arch/powerpc/include/asm/pmc.h @@ -27,10 +27,22 @@ extern perf_irq_t perf_irq; int reserve_pmc_hardware(perf_irq_t new_perf_irq); void release_pmc_hardware(void); +void ppc_enable_pmcs(void); #ifdef CONFIG_PPC64 -void power4_enable_pmcs(void); -void pasemi_enable_pmcs(void); +#include <asm/lppaca.h> + +static inline void ppc_set_pmu_inuse(int inuse) +{ + get_lppaca()->pmcregs_in_use = inuse; +} + +extern void power4_enable_pmcs(void); + +#else /* CONFIG_PPC64 */ + +static inline void ppc_set_pmu_inuse(int inuse) { } + #endif #endif /* __KERNEL__ */ diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c index 70e1f57f7dd..ccd6b213564 100644 --- a/arch/powerpc/kernel/perf_counter.c +++ b/arch/powerpc/kernel/perf_counter.c @@ -62,7 +62,6 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs) { return 0; } -static inline void perf_set_pmu_inuse(int inuse) { } static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp) { } static inline u32 perf_get_misc_flags(struct pt_regs *regs) { @@ -93,11 +92,6 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs) return 0; } -static inline void perf_set_pmu_inuse(int inuse) -{ - get_lppaca()->pmcregs_in_use = inuse; -} - /* * The user wants a data address recorded. * If we're not doing instruction sampling, give them the SDAR @@ -531,8 +525,7 @@ void hw_perf_disable(void) * Check if we ever enabled the PMU on this cpu. */ if (!cpuhw->pmcs_enabled) { - if (ppc_md.enable_pmcs) - ppc_md.enable_pmcs(); + ppc_enable_pmcs(); cpuhw->pmcs_enabled = 1; } @@ -594,7 +587,7 @@ void hw_perf_enable(void) mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE); mtspr(SPRN_MMCR1, cpuhw->mmcr[1]); if (cpuhw->n_counters == 0) - perf_set_pmu_inuse(0); + ppc_set_pmu_inuse(0); goto out_enable; } @@ -627,7 +620,7 @@ void hw_perf_enable(void) * bit set and set the hardware counters to their initial values. * Then unfreeze the counters. */ - perf_set_pmu_inuse(1); + ppc_set_pmu_inuse(1); mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE); mtspr(SPRN_MMCR1, cpuhw->mmcr[1]); mtspr(SPRN_MMCR0, (cpuhw->mmcr[0] & ~(MMCR0_PMC1CE | MMCR0_PMCjCE)) diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index f41aec85aa4..956ab33fd73 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -17,6 +17,7 @@ #include <asm/prom.h> #include <asm/machdep.h> #include <asm/smp.h> +#include <asm/pmc.h> #include "cacheinfo.h" @@ -123,6 +124,8 @@ static DEFINE_PER_CPU(char, pmcs_enabled); void ppc_enable_pmcs(void) { + ppc_set_pmu_inuse(1); + /* Only need to enable them once */ if (__get_cpu_var(pmcs_enabled)) return; diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 8d75ea21296..ca5f2e10972 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -223,10 +223,6 @@ static void pseries_lpar_enable_pmcs(void) set = 1UL << 63; reset = 0; plpar_hcall_norets(H_PERFMON, set, reset); - - /* instruct hypervisor to maintain PMCs */ - if (firmware_has_feature(FW_FEATURE_SPLPAR)) - get_lppaca()->pmcregs_in_use = 1; } static void __init pseries_discover_pic(void) |