diff options
| -rw-r--r-- | arch/powerpc/include/asm/hw_irq.h | 14 | ||||
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 11 | ||||
| -rw-r--r-- | arch/powerpc/kernel/perf_counter.c | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/perf_counter.h | 3 | ||||
| -rw-r--r-- | kernel/perf_counter.c | 2 |
5 files changed, 19 insertions, 14 deletions
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index b43076f..cb32d57 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -142,10 +142,17 @@ static inline unsigned long get_perf_counter_pending(void) return x; } -static inline void set_perf_counter_pending(int x) +static inline void set_perf_counter_pending(void) { asm volatile("stb %0,%1(13)" : : - "r" (x), + "r" (1), + "i" (offsetof(struct paca_struct, perf_counter_pending))); +} + +static inline void clear_perf_counter_pending(void) +{ + asm volatile("stb %0,%1(13)" : : + "r" (0), "i" (offsetof(struct paca_struct, perf_counter_pending))); } @@ -158,7 +165,8 @@ static inline unsigned long get_perf_counter_pending(void) return 0; } -static inline void set_perf_counter_pending(int x) {} +static inline void set_perf_counter_pending(void) {} +static inline void clear_perf_counter_pending(void) {} static inline void perf_counter_do_pending(void) {} #endif /* CONFIG_PERF_COUNTERS */ diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 0d2e37c..469e963 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -104,13 +104,6 @@ static inline notrace void set_soft_enabled(unsigned long enable) : : "r" (enable), "i" (offsetof(struct paca_struct, soft_enabled))); } -#ifdef CONFIG_PERF_COUNTERS -notrace void __weak perf_counter_do_pending(void) -{ - set_perf_counter_pending(0); -} -#endif - notrace void raw_local_irq_restore(unsigned long en) { /* @@ -142,8 +135,10 @@ notrace void raw_local_irq_restore(unsigned long en) iseries_handle_interrupts(); } - if (get_perf_counter_pending()) + if (get_perf_counter_pending()) { + clear_perf_counter_pending(); perf_counter_do_pending(); + } /* * if (get_paca()->hard_enabled) return; diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c index 0e33d27..5008762 100644 --- a/arch/powerpc/kernel/perf_counter.c +++ b/arch/powerpc/kernel/perf_counter.c @@ -653,7 +653,6 @@ void perf_counter_do_pending(void) struct cpu_hw_counters *cpuhw = &__get_cpu_var(cpu_hw_counters); struct perf_counter *counter; - set_perf_counter_pending(0); for (i = 0; i < cpuhw->n_counters; ++i) { counter = cpuhw->counter[i]; if (counter && counter->wakeup_pending) { @@ -811,7 +810,7 @@ static void perf_counter_interrupt(struct pt_regs *regs) perf_counter_do_pending(); irq_exit(); } else { - set_perf_counter_pending(1); + set_perf_counter_pending(); } } } diff --git a/arch/x86/include/asm/perf_counter.h b/arch/x86/include/asm/perf_counter.h index 2e08ed7..1662043 100644 --- a/arch/x86/include/asm/perf_counter.h +++ b/arch/x86/include/asm/perf_counter.h @@ -84,6 +84,9 @@ union cpuid10_edx { #define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b #define X86_PMC_IDX_FIXED_BUS_CYCLES (X86_PMC_IDX_FIXED + 2) +#define set_perf_counter_pending() \ + set_tsk_thread_flag(current, TIF_PERF_COUNTERS); + #ifdef CONFIG_PERF_COUNTERS extern void init_hw_perf_counters(void); extern void perf_counters_lapic_init(int nmi); diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 0018c5e..b39456a 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1433,7 +1433,7 @@ static void perf_swcounter_interrupt(struct perf_counter *counter, if (nmi) { counter->wakeup_pending = 1; - set_tsk_thread_flag(current, TIF_PERF_COUNTERS); + set_perf_counter_pending(); } else wake_up(&counter->waitq); } |
