diff options
Diffstat (limited to 'arch/powerpc')
22 files changed, 364 insertions, 364 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 8250902265c..4fd479059d6 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -129,7 +129,7 @@ config PPC select HAVE_OPROFILE select HAVE_SYSCALL_WRAPPERS if PPC64 select GENERIC_ATOMIC64 if PPC32 - select HAVE_PERF_COUNTERS + select HAVE_PERF_EVENTS config EARLY_PRINTK bool diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index e73d554538d..abbc2aaaced 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -135,43 +135,43 @@ static inline int irqs_disabled_flags(unsigned long flags) */ struct irq_chip; -#ifdef CONFIG_PERF_COUNTERS +#ifdef CONFIG_PERF_EVENTS #ifdef CONFIG_PPC64 -static inline unsigned long test_perf_counter_pending(void) +static inline unsigned long test_perf_event_pending(void) { unsigned long x; asm volatile("lbz %0,%1(13)" : "=r" (x) - : "i" (offsetof(struct paca_struct, perf_counter_pending))); + : "i" (offsetof(struct paca_struct, perf_event_pending))); return x; } -static inline void set_perf_counter_pending(void) +static inline void set_perf_event_pending(void) { asm volatile("stb %0,%1(13)" : : "r" (1), - "i" (offsetof(struct paca_struct, perf_counter_pending))); + "i" (offsetof(struct paca_struct, perf_event_pending))); } -static inline void clear_perf_counter_pending(void) +static inline void clear_perf_event_pending(void) { asm volatile("stb %0,%1(13)" : : "r" (0), - "i" (offsetof(struct paca_struct, perf_counter_pending))); + "i" (offsetof(struct paca_struct, perf_event_pending))); } #endif /* CONFIG_PPC64 */ -#else /* CONFIG_PERF_COUNTERS */ +#else /* CONFIG_PERF_EVENTS */ -static inline unsigned long test_perf_counter_pending(void) +static inline unsigned long test_perf_event_pending(void) { return 0; } -static inline void clear_perf_counter_pending(void) {} -#endif /* CONFIG_PERF_COUNTERS */ +static inline void clear_perf_event_pending(void) {} +#endif /* CONFIG_PERF_EVENTS */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_HW_IRQ_H */ diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index b634456ea89..154f405b642 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -122,7 +122,7 @@ struct paca_struct { u8 soft_enabled; /* irq soft-enable flag */ u8 hard_enabled; /* set if irqs are enabled in MSR */ u8 io_sync; /* writel() needs spin_unlock sync */ - u8 perf_counter_pending; /* PM interrupt while soft-disabled */ + u8 perf_event_pending; /* PM interrupt while soft-disabled */ /* Stuff for accurate time accounting */ u64 user_time; /* accumulated usermode TB ticks */ diff --git a/arch/powerpc/include/asm/perf_counter.h b/arch/powerpc/include/asm/perf_event.h index 0ea0639fcf7..2499aaadaeb 100644 --- a/arch/powerpc/include/asm/perf_counter.h +++ b/arch/powerpc/include/asm/perf_event.h @@ -1,5 +1,5 @@ /* - * Performance counter support - PowerPC-specific definitions. + * Performance event support - PowerPC-specific definitions. * * Copyright 2008-2009 Paul Mackerras, IBM Corporation. * @@ -12,9 +12,9 @@ #include <asm/hw_irq.h> -#define MAX_HWCOUNTERS 8 +#define MAX_HWEVENTS 8 #define MAX_EVENT_ALTERNATIVES 8 -#define MAX_LIMITED_HWCOUNTERS 2 +#define MAX_LIMITED_HWEVENTS 2 /* * This struct provides the constants and functions needed to @@ -22,18 +22,18 @@ */ struct power_pmu { const char *name; - int n_counter; + int n_event; int max_alternatives; unsigned long add_fields; unsigned long test_adder; int (*compute_mmcr)(u64 events[], int n_ev, unsigned int hwc[], unsigned long mmcr[]); - int (*get_constraint)(u64 event, unsigned long *mskp, + int (*get_constraint)(u64 event_id, unsigned long *mskp, unsigned long *valp); - int (*get_alternatives)(u64 event, unsigned int flags, + int (*get_alternatives)(u64 event_id, unsigned int flags, u64 alt[]); void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]); - int (*limited_pmc_event)(u64 event); + int (*limited_pmc_event)(u64 event_id); u32 flags; int n_generic; int *generic_events; @@ -61,10 +61,10 @@ struct pt_regs; extern unsigned long perf_misc_flags(struct pt_regs *regs); extern unsigned long perf_instruction_pointer(struct pt_regs *regs); -#define PERF_COUNTER_INDEX_OFFSET 1 +#define PERF_EVENT_INDEX_OFFSET 1 /* - * Only override the default definitions in include/linux/perf_counter.h + * Only override the default definitions in include/linux/perf_event.h * if we have hardware PMU support. */ #ifdef CONFIG_PPC_PERF_CTRS @@ -73,14 +73,14 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs); /* * The power_pmu.get_constraint function returns a 32/64-bit value and - * a 32/64-bit mask that express the constraints between this event and + * a 32/64-bit mask that express the constraints between this event_id and * other events. * * The value and mask are divided up into (non-overlapping) bitfields * of three different types: * * Select field: this expresses the constraint that some set of bits - * in MMCR* needs to be set to a specific value for this event. For a + * in MMCR* needs to be set to a specific value for this event_id. For a * select field, the mask contains 1s in every bit of the field, and * the value contains a unique value for each possible setting of the * MMCR* bits. The constraint checking code will ensure that two events @@ -102,9 +102,9 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs); * possible.) For N classes, the field is N+1 bits wide, and each class * is assigned one bit from the least-significant N bits. The mask has * only the most-significant bit set, and the value has only the bit - * for the event's class set. The test_adder has the least significant + * for the event_id's class set. The test_adder has the least significant * bit set in the field. * - * If an event is not subject to the constraint expressed by a particular + * If an event_id is not subject to the constraint expressed by a particular * field, then it will have 0 in both the mask and value for that field. */ diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index ed24bd92fe4..c7d671a7d9a 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -322,7 +322,7 @@ SYSCALL_SPU(epoll_create1) SYSCALL_SPU(dup3) SYSCALL_SPU(pipe2) SYSCALL(inotify_init1) -SYSCALL_SPU(perf_counter_open) +SYSCALL_SPU(perf_event_open) COMPAT_SYS_SPU(preadv) COMPAT_SYS_SPU(pwritev) COMPAT_SYS(rt_tgsigqueueinfo) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index cef080bfc60..f6ca7617676 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -341,7 +341,7 @@ #define __NR_dup3 316 #define __NR_pipe2 317 #define __NR_inotify_init1 318 -#define __NR_perf_counter_open 319 +#define __NR_perf_event_open 319 #define __NR_preadv 320 #define __NR_pwritev 321 #define __NR_rt_tgsigqueueinfo 322 diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 569f79ccd31..b23664a0b86 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -97,7 +97,7 @@ obj64-$(CONFIG_AUDIT) += compat_audit.o obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o -obj-$(CONFIG_PPC_PERF_CTRS) += perf_counter.o perf_callchain.o +obj-$(CONFIG_PPC_PERF_CTRS) += perf_event.o perf_callchain.o obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \ power5+-pmu.o power6-pmu.o power7-pmu.o obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index f0df285f0f8..0812b0f414b 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -133,7 +133,7 @@ int main(void) DEFINE(PACAKMSR, offsetof(struct paca_struct, kernel_msr)); DEFINE(PACASOFTIRQEN, offsetof(struct paca_struct, soft_enabled)); DEFINE(PACAHARDIRQEN, offsetof(struct paca_struct, hard_enabled)); - DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_counter_pending)); + DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_event_pending)); DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id)); #ifdef CONFIG_PPC_MM_SLICES DEFINE(PACALOWSLICESPSIZE, offsetof(struct paca_struct, diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 66bcda34a6b..900e0eea009 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -556,14 +556,14 @@ ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES) 2: TRACE_AND_RESTORE_IRQ(r5); -#ifdef CONFIG_PERF_COUNTERS - /* check paca->perf_counter_pending if we're enabling ints */ +#ifdef CONFIG_PERF_EVENTS + /* check paca->perf_event_pending if we're enabling ints */ lbz r3,PACAPERFPEND(r13) and. r3,r3,r5 beq 27f - bl .perf_counter_do_pending + bl .perf_event_do_pending 27: -#endif /* CONFIG_PERF_COUNTERS */ +#endif /* CONFIG_PERF_EVENTS */ /* extract EE bit and use it to restore paca->hard_enabled */ ld r3,_MSR(r1) diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index f7f376ea7b1..e5d12117798 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -53,7 +53,7 @@ #include <linux/bootmem.h> #include <linux/pci.h> #include <linux/debugfs.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -138,9 +138,9 @@ notrace void raw_local_irq_restore(unsigned long en) } #endif /* CONFIG_PPC_STD_MMU_64 */ - if (test_perf_counter_pending()) { - clear_perf_counter_pending(); - perf_counter_do_pending(); + if (test_perf_event_pending()) { + clear_perf_event_pending(); + perf_event_do_pending(); } /* diff --git a/arch/powerpc/kernel/mpc7450-pmu.c b/arch/powerpc/kernel/mpc7450-pmu.c index cc466d039af..09d72028f31 100644 --- a/arch/powerpc/kernel/mpc7450-pmu.c +++ b/arch/powerpc/kernel/mpc7450-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/string.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/perf_callchain.c b/arch/powerpc/kernel/perf_callchain.c index f74b62c6751..0a03cf70d24 100644 --- a/arch/powerpc/kernel/perf_callchain.c +++ b/arch/powerpc/kernel/perf_callchain.c @@ -10,7 +10,7 @@ */ #include <linux/kernel.h> #include <linux/sched.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/percpu.h> #include <linux/uaccess.h> #include <linux/mm.h> diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_event.c index 5ccf9bca96c..c98321fcb45 100644 --- a/arch/powerpc/kernel/perf_counter.c +++ b/arch/powerpc/kernel/perf_event.c @@ -1,5 +1,5 @@ /* - * Performance counter support - powerpc architecture code + * Performance event support - powerpc architecture code * * Copyright 2008-2009 Paul Mackerras, IBM Corporation. * @@ -10,7 +10,7 @@ */ #include <linux/kernel.h> #include <linux/sched.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/percpu.h> #include <linux/hardirq.h> #include <asm/reg.h> @@ -19,35 +19,35 @@ #include <asm/firmware.h> #include <asm/ptrace.h> -struct cpu_hw_counters { - int n_counters; +struct cpu_hw_events { + int n_events; int n_percpu; int disabled; int n_added; int n_limited; u8 pmcs_enabled; - struct perf_counter *counter[MAX_HWCOUNTERS]; - u64 events[MAX_HWCOUNTERS]; - unsigned int flags[MAX_HWCOUNTERS]; + struct perf_event *event[MAX_HWEVENTS]; + u64 events[MAX_HWEVENTS]; + unsigned int flags[MAX_HWEVENTS]; unsigned long mmcr[3]; - struct perf_counter *limited_counter[MAX_LIMITED_HWCOUNTERS]; - u8 limited_hwidx[MAX_LIMITED_HWCOUNTERS]; - u64 alternatives[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES]; - unsigned long amasks[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES]; - unsigned long avalues[MAX_HWCOUNTERS][MAX_EVENT_ALTERNATIVES]; + struct perf_event *limited_event[MAX_LIMITED_HWEVENTS]; + u8 limited_hwidx[MAX_LIMITED_HWEVENTS]; + u64 alternatives[MAX_HWEVENTS][MAX_EVENT_ALTERNATIVES]; + unsigned long amasks[MAX_HWEVENTS][MAX_EVENT_ALTERNATIVES]; + unsigned long avalues[MAX_HWEVENTS][MAX_EVENT_ALTERNATIVES]; }; -DEFINE_PER_CPU(struct cpu_hw_counters, cpu_hw_counters); +DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events); struct power_pmu *ppmu; /* - * Normally, to ignore kernel events we set the FCS (freeze counters + * Normally, to ignore kernel events we set the FCS (freeze events * in supervisor mode) bit in MMCR0, but if the kernel runs with the * hypervisor bit set in the MSR, or if we are running on a processor * where the hypervisor bit is forced to 1 (as on Apple G5 processors), * then we need to use the FCHV bit to ignore kernel events. */ -static unsigned int freeze_counters_kernel = MMCR0_FCS; +static unsigned int freeze_events_kernel = MMCR0_FCS; /* * 32-bit doesn't have MMCRA but does have an MMCR2, @@ -122,14 +122,14 @@ static inline u32 perf_get_misc_flags(struct pt_regs *regs) if (ppmu->flags & PPMU_ALT_SIPR) { if (mmcra & POWER6_MMCRA_SIHV) - return PERF_EVENT_MISC_HYPERVISOR; + return PERF_RECORD_MISC_HYPERVISOR; return (mmcra & POWER6_MMCRA_SIPR) ? - PERF_EVENT_MISC_USER : PERF_EVENT_MISC_KERNEL; + PERF_RECORD_MISC_USER : PERF_RECORD_MISC_KERNEL; } if (mmcra & MMCRA_SIHV) - return PERF_EVENT_MISC_HYPERVISOR; - return (mmcra & MMCRA_SIPR) ? PERF_EVENT_MISC_USER : - PERF_EVENT_MISC_KERNEL; + return PERF_RECORD_MISC_HYPERVISOR; + return (mmcra & MMCRA_SIPR) ? PERF_RECORD_MISC_USER : + PERF_RECORD_MISC_KERNEL; } /* @@ -152,14 +152,14 @@ static inline int perf_intr_is_nmi(struct pt_regs *regs) #endif /* CONFIG_PPC64 */ -static void perf_counter_interrupt(struct pt_regs *regs); +static void perf_event_interrupt(struct pt_regs *regs); -void perf_counter_print_debug(void) +void perf_event_print_debug(void) { } /* - * Read one performance monitor counter (PMC). + * Read one performance monitor event (PMC). */ static unsigned long read_pmc(int idx) { @@ -240,31 +240,31 @@ static void write_pmc(int idx, unsigned long val) * Check if a set of events can all go on the PMU at once. * If they can't, this will look at alternative codes for the events * and see if any combination of alternative codes is feasible. - * The feasible set is returned in event[]. + * The feasible set is returned in event_id[]. */ -static int power_check_constraints(struct cpu_hw_counters *cpuhw, - u64 event[], unsigned int cflags[], +static int power_check_constraints(struct cpu_hw_events *cpuhw, + u64 event_id[], unsigned int cflags[], int n_ev) { unsigned long mask, value, nv; - unsigned long smasks[MAX_HWCOUNTERS], svalues[MAX_HWCOUNTERS]; - int n_alt[MAX_HWCOUNTERS], choice[MAX_HWCOUNTERS]; + unsigned long smasks[MAX_HWEVENTS], svalues[MAX_HWEVENTS]; + int n_alt[MAX_HWEVENTS], choice[MAX_HWEVENTS]; int i, j; unsigned long addf = ppmu->add_fields; unsigned long tadd = ppmu->test_adder; - if (n_ev > ppmu->n_counter) + if (n_ev > ppmu->n_event) return -1; /* First see if the events will go on as-is */ for (i = 0; i < n_ev; ++i) { if ((cflags[i] & PPMU_LIMITED_PMC_REQD) - && !ppmu->limited_pmc_event(event[i])) { - ppmu->get_alternatives(event[i], cflags[i], + && !ppmu->limited_pmc_event(event_id[i])) { + ppmu->get_alternatives(event_id[i], cflags[i], cpuhw->alternatives[i]); - event[i] = cpuhw->alternatives[i][0]; + event_id[i] = cpuhw->alternatives[i][0]; } - if (ppmu->get_constraint(event[i], &cpuhw->amasks[i][0], + if (ppmu->get_constraint(event_id[i], &cpuhw->amasks[i][0], &cpuhw->avalues[i][0])) return -1; } @@ -287,7 +287,7 @@ static int power_check_constraints(struct cpu_hw_counters *cpuhw, return -1; for (i = 0; i < n_ev; ++i) { choice[i] = 0; - n_alt[i] = ppmu->get_alternatives(event[i], cflags[i], + n_alt[i] = ppmu->get_alternatives(event_id[i], cflags[i], cpuhw->alternatives[i]); for (j = 1; j < n_alt[i]; ++j) ppmu->get_constraint(cpuhw->alternatives[i][j], @@ -307,7 +307,7 @@ static int power_check_constraints(struct cpu_hw_counters *cpuhw, j = choice[i]; } /* - * See if any alternative k for event i, + * See if any alternative k for event_id i, * where k > j, will satisfy the constraints. */ while (++j < n_alt[i]) { @@ -321,16 +321,16 @@ static int power_check_constraints(struct cpu_hw_counters *cpuhw, if (j >= n_alt[i]) { /* * No feasible alternative, backtrack - * to event i-1 and continue enumerating its + * to event_id i-1 and continue enumerating its * alternatives from where we got up to. */ if (--i < 0) return -1; } else { /* - * Found a feasible alternative for event i, - * remember where we got up to with this event, - * go on to the next event, and start with + * Found a feasible alternative for event_id i, + * remember where we got up to with this event_id, + * go on to the next event_id, and start with * the first alternative for it. */ choice[i] = j; @@ -345,21 +345,21 @@ static int power_check_constraints(struct cpu_hw_counters *cpuhw, /* OK, we have a feasible combination, tell the caller the solution */ for (i = 0; i < n_ev; ++i) - event[i] = cpuhw->alternatives[i][choice[i]]; + event_id[i] = cpuhw->alternatives[i][choice[i]]; return 0; } /* - * Check if newly-added counters have consistent settings for + * Check if newly-added events have consistent settings for * exclude_{user,kernel,hv} with each other and any previously - * added counters. + * added events. */ -static int check_excludes(struct perf_counter **ctrs, unsigned int cflags[], +static int check_excludes(struct perf_event **ctrs, unsigned int cflags[], int n_prev, int n_new) { int eu = 0, ek = 0, eh = 0; int i, n, first; - struct perf_counter *counter; + struct perf_event *event; n = n_prev + n_new; if (n <= 1) @@ -371,15 +371,15 @@ static int check_excludes(struct perf_counter **ctrs, unsigned int cflags[], cflags[i] &= ~PPMU_LIMITED_PMC_REQD; continue; } - counter = ctrs[i]; + event = ctrs[i]; if (first) { - eu = counter->attr.exclude_user; - ek = counter->attr.exclude_kernel; - eh = counter->attr.exclude_hv; + eu = event->attr.exclude_user; + ek = event->attr.exclude_kernel; + eh = event->attr.exclude_hv; first = 0; - } else if (counter->attr.exclude_user != eu || - counter->attr.exclude_kernel != ek || - counter->attr.exclude_hv != eh) { + } else if (event->attr.exclude_user != eu || + event->attr.exclude_kernel != ek || + event->attr.exclude_hv != eh) { return -EAGAIN; } } @@ -392,11 +392,11 @@ static int check_excludes(struct perf_counter **ctrs, unsigned int cflags[], return 0; } -static void power_pmu_read(struct perf_counter *counter) +static void power_pmu_read(struct perf_event *event) { s64 val, delta, prev; - if (!counter->hw.idx) + if (!event->hw.idx) return; /* * Performance monitor interrupts come even when interrupts @@ -404,21 +404,21 @@ static void power_pmu_read(struct perf_counter *counter) * Therefore we treat them like NMIs. */ do { - prev = atomic64_read(&counter->hw.prev_count); + prev = atomic64_read(&event->hw.prev_count); barrier(); - val = read_pmc(counter->hw.idx); - } while (atomic64_cmpxchg(&counter->hw.prev_count, prev, val) != prev); + val = read_pmc(event->hw.idx); + } while (atomic64_cmpxchg(&event->hw.prev_count, prev, val) != prev); - /* The counters are only 32 bits wide */ + /* The events are only 32 bits wide */ delta = (val - prev) & 0xfffffffful; - atomic64_add(delta, &counter->count); - atomic64_sub(delta, &counter->hw.period_left); + atomic64_add(delta, &event->count); + atomic64_sub(delta, &event->hw.period_left); } /* * On some machines, PMC5 and PMC6 can't be written, don't respect * the freeze conditions, and don't generate interrupts. This tells - * us if `counter' is using such a PMC. + * us if `event' is using such a PMC. */ static int is_limited_pmc(int pmcnum) { @@ -426,53 +426,53 @@ static int is_limited_pmc(int pmcnum) && (pmcnum == 5 || pmcnum == 6); } -static void freeze_limited_counters(struct cpu_hw_counters *cpuhw, +static void freeze_limited_events(struct cpu_hw_events *cpuhw, unsigned long pmc5, unsigned long pmc6) { - struct perf_counter *counter; + struct perf_event *event; u64 val, prev, delta; int i; for (i = 0; i < cpuhw->n_limited; ++i) { - counter = cpuhw->limited_counter[i]; - if (!counter->hw.idx) + event = cpuhw->limited_event[i]; + if (!event->hw.idx) continue; - val = (counter->hw.idx == 5) ? pmc5 : pmc6; - prev = atomic64_read(&counter->hw.prev_count); - counter->hw.idx = 0; + val = (event->hw.idx == 5) ? pmc5 : pmc6; + prev = atomic64_read(&event->hw.prev_count); + event->hw.idx = 0; delta = (val - prev) & 0xfffffffful; - atomic64_add(delta, &counter->count); + atomic64_add(delta, &event->count); } } -static void thaw_limited_counters(struct cpu_hw_counters *cpuhw, +static void thaw_limited_events(struct cpu_hw_events *cpuhw, unsigned long pmc5, unsigned long pmc6) { - struct perf_counter *counter; + struct perf_event *event; u64 val; int i; for (i = 0; i < cpuhw->n_limited; ++i) { - counter = cpuhw->limited_counter[i]; - counter->hw.idx = cpuhw->limited_hwidx[i]; - val = (counter->hw.idx == 5) ? pmc5 : pmc6; - atomic64_set(&counter->hw.prev_count, val); - perf_counter_update_userpage(counter); + event = cpuhw->limited_event[i]; + event->hw.idx = cpuhw->limited_hwidx[i]; + val = (event->hw.idx == 5) ? pmc5 : pmc6; + atomic64_set(&event->hw.prev_count, val); + perf_event_update_userpage(event); } } /* - * Since limited counters don't respect the freeze conditions, we + * Since limited events don't respect the freeze conditions, we * have to read them immediately after freezing or unfreezing the - * other counters. We try to keep the values from the limited - * counters as consistent as possible by keeping the delay (in + * other events. We try to keep the values from the limited + * events as consistent as possible by keeping the delay (in * cycles and instructions) between freezing/unfreezing and reading - * the limited counters as small and consistent as possible. - * Therefore, if any limited counters are in use, we read them + * the limited events as small and consistent as possible. + * Therefore, if any limited events are in use, we read them * both, and always in the same order, to minimize variability, * and do it inside the same asm that writes MMCR0. */ -static void write_mmcr0(struct cpu_hw_counters *cpuhw, unsigned long mmcr0) +static void write_mmcr0(struct cpu_hw_events *cpuhw, unsigned long mmcr0) { unsigned long pmc5, pmc6; @@ -485,7 +485,7 @@ static void write_mmcr0(struct cpu_hw_counters *cpuhw, unsigned long mmcr0) * Write MMCR0, then read PMC5 and PMC6 immediately. * To ensure we don't get a performance monitor interrupt * between writing MMCR0 and freezing/thawing the limited - * counters, we first write MMCR0 with the counter overflow + * events, we first write MMCR0 with the event overflow * interrupt enable bits turned off. */ asm volatile("mtspr %3,%2; mfspr %0,%4; mfspr %1,%5" @@ -495,12 +495,12 @@ static void write_mmcr0(struct cpu_hw_counters *cpuhw, unsigned long mmcr0) "i" (SPRN_PMC5), "i" (SPRN_PMC6)); if (mmcr0 & MMCR0_FC) - freeze_limited_counters(cpuhw, pmc5, pmc6); + freeze_limited_events(cpuhw, pmc5, pmc6); else - thaw_limited_counters(cpuhw, pmc5, pmc6); + thaw_limited_events(cpuhw, pmc5, pmc6); /* - * Write the full MMCR0 including the counter overflow interrupt + * Write the full MMCR0 including the event overflow interrupt * enable bits, if necessary. */ if (mmcr0 & (MMCR0_PMC1CE | MMCR0_PMCjCE)) @@ -508,18 +508,18 @@ static void write_mmcr0(struct cpu_hw_counters *cpuhw, unsigned long mmcr0) } /* - * Disable all counters to prevent PMU interrupts and to allow - * counters to be added or removed. + * Disable all events to prevent PMU interrupts and to allow + * events to be added or removed. */ void hw_perf_disable(void) { - struct cpu_hw_counters *cpuhw; + struct cpu_hw_events *cpuhw; unsigned long flags; if (!ppmu) return; local_irq_save(flags); - cpuhw = &__get_cpu_var(cpu_hw_counters); + cpuhw = &__get_cpu_var(cpu_hw_events); if (!cpuhw->disabled) { cpuhw->disabled = 1; @@ -543,9 +543,9 @@ void hw_perf_disable(void) } /* - * Set the 'freeze counters' bit. + * Set the 'freeze events' bit. * The barrier is to make sure the mtspr has been - * executed and the PMU has frozen the counters + * executed and the PMU has frozen the events * before we return. */ write_mmcr0(cpuhw, mfspr(SPRN_MMCR0) | MMCR0_FC); @@ -555,26 +555,26 @@ void hw_perf_disable(void) } /* - * Re-enable all counters if disable == 0. - * If we were previously disabled and counters were added, then + * Re-enable all events if disable == 0. + * If we were previously disabled and events were added, then * put the new config on the PMU. */ void hw_perf_enable(void) { - struct perf_counter *counter; - struct cpu_hw_counters *cpuhw; + struct perf_event *event; + struct cpu_hw_events *cpuhw; unsigned long flags; long i; unsigned long val; s64 left; - unsigned int hwc_index[MAX_HWCOUNTERS]; + unsigned int hwc_index[MAX_HWEVENTS]; int n_lim; int idx; if (!ppmu) return; local_irq_save(flags); - cpuhw = &__get_cpu_var(cpu_hw_counters); + cpuhw = &__get_cpu_var(cpu_hw_events); if (!cpuhw->disabled) { local_irq_restore(flags); return; @@ -582,23 +582,23 @@ void hw_perf_enable(void) cpuhw->disabled = 0; /* - * If we didn't change anything, or only removed counters, + * If we didn't change anything, or only removed events, * no need to recalculate MMCR* settings and reset the PMCs. * Just reenable the PMU with the current MMCR* settings - * (possibly updated for removal of counters). + * (possibly updated for removal of events). */ if (!cpuhw->n_added) { mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE); mtspr(SPRN_MMCR1, cpuhw->mmcr[1]); - if (cpuhw->n_counters == 0) + if (cpuhw->n_events == 0) ppc_set_pmu_inuse(0); goto out_enable; } /* - * Compute MMCR* values for the new set of counters + * Compute MMCR* values for the new set of events */ - if (ppmu->compute_mmcr(cpuhw->events, cpuhw->n_counters, hwc_index, + if (ppmu->compute_mmcr(cpuhw->events, cpuhw->n_events, hwc_index, cpuhw->mmcr)) { /* shouldn't ever get here */ printk(KERN_ERR "oops compute_mmcr failed\n"); @@ -607,22 +607,22 @@ void hw_perf_enable(void) /* * Add in MMCR0 freeze bits corresponding to the - * attr.exclude_* bits for the first counter. - * We have already checked that all counters have the - * same values for these bits as the first counter. + * attr.exclude_* bits for the first event. + * We have already checked that all events have the + * same values for these bits as the first event. */ - counter = cpuhw->counter[0]; - if (counter->attr.exclude_user) + event = cpuhw->event[0]; + if (event->attr.exclude_user) cpuhw->mmcr[0] |= MMCR0_FCP; - if (counter->attr.exclude_kernel) - cpuhw->mmcr[0] |= freeze_counters_kernel; - if (counter->attr.exclude_hv) + if (event->attr.exclude_kernel) + cpuhw->mmcr[0] |= freeze_events_kernel; + if (event->attr.exclude_hv) cpuhw->mmcr[0] |= MMCR0_FCHV; /* * Write the new configuration to MMCR* with the freeze - * bit set and set the hardware counters to their initial values. - * Then unfreeze the counters. + * bit set and set the hardware events to their initial values. + * Then unfreeze the events. */ ppc_set_pmu_inuse(1); mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE); @@ -631,43 +631,43 @@ void hw_perf_enable(void) | MMCR0_FC); /* - * Read off any pre-existing counters that need to move + * Read off any pre-existing events that need to move * to another PMC. */ - for (i = 0; i < cpuhw->n_counters; ++i) { - counter = cpuhw->counter[i]; - if (counter->hw.idx && counter->hw.idx != hwc_index[i] + 1) { - power_pmu_read(counter); - write_pmc(counter->hw.idx, 0); - counter->hw.idx = 0; + for (i = 0; i < cpuhw->n_events; ++i) { + event = cpuhw->event[i]; + if (event->hw.idx && event->hw.idx != hwc_index[i] + 1) { + power_pmu_read(event); + write_pmc(event->hw.idx, 0); + event->hw.idx = 0; } } /* - * Initialize the PMCs for all the new and moved counters. + * Initialize the PMCs for all the new and moved events. */ cpuhw->n_limited = n_lim = 0; - for (i = 0; i < cpuhw->n_counters; ++i) { - counter = cpuhw->counter[i]; - if (counter->hw.idx) + for (i = 0; i < cpuhw->n_events; ++i) { + event = cpuhw->event[i]; + if (event->hw.idx) continue; idx = hwc_index[i] + 1; if (is_limited_pmc(idx)) { - cpuhw->limited_counter[n_lim] = counter; + cpuhw->limited_event[n_lim] = event; cpuhw->limited_hwidx[n_lim] = idx; ++n_lim; continue; } val = 0; - if (counter->hw.sample_period) { - left = atomic64_read(&counter->hw.period_left); + if (event->hw.sample_period) { + left = atomic64_read(&event->hw.period_left); if (left < 0x80000000L) val = 0x80000000L - left; } - atomic64_set(&counter->hw.prev_count, val); - counter->hw.idx = idx; + atomic64_set(&event->hw.prev_count, val); + event->hw.idx = idx; write_pmc(idx, val); - perf_counter_update_userpage(counter); + perf_event_update_userpage(event); } cpuhw->n_limited = n_lim; cpuhw->mmcr[0] |= MMCR0_PMXE | MMCR0_FCECE; @@ -688,85 +688,85 @@ void hw_perf_enable(void) local_irq_restore(flags); } -static int collect_events(struct perf_counter *group, int max_count, - struct perf_counter *ctrs[], u64 *events, +static int collect_events(struct perf_event *group, int max_count, + struct perf_event *ctrs[], u64 *events, unsigned int *flags) { int n = 0; - struct perf_counter *counter; + struct perf_event *event; - if (!is_software_counter(group)) { + if (!is_software_event(group)) { if (n >= max_count) return -1; ctrs[n] = group; - flags[n] = group->hw.counter_base; + flags[n] = group->hw.event_base; events[n++] = group->hw.config; } - list_for_each_entry(counter, &group->sibling_list, list_entry) { - if (!is_software_counter(counter) && - counter->state != PERF_COUNTER_STATE_OFF) { + list_for_each_entry(event, &group->sibling_list, list_entry) { + if (!is_software_event(event) && + event->state != PERF_EVENT_STATE_OFF) { if (n >= max_count) return -1; - ctrs[n] = counter; - flags[n] = counter->hw.counter_base; - events[n++] = counter->hw.config; + ctrs[n] = event; + flags[n] = event->hw.event_base; + events[n++] = event->hw.config; } } return n; } -static void counter_sched_in(struct perf_counter *counter, int cpu) +static void event_sched_in(struct perf_event *event, int cpu) { - counter->state = PERF_COUNTER_STATE_ACTIVE; - counter->oncpu = cpu; - counter->tstamp_running += counter->ctx->time - counter->tstamp_stopped; - if (is_software_counter(counter)) - counter->pmu->enable(counter); + event->state = PERF_EVENT_STATE_ACTIVE; + event->oncpu = cpu; + event->tstamp_running += event->ctx->time - event->tstamp_stopped; + if (is_software_event(event)) + event->pmu->enable(event); } /* - * Called to enable a whole group of counters. + * Called to enable a whole group of events. * Returns 1 if the group was enabled, or -EAGAIN if it could not be. * Assumes the caller has disabled interrupts and has * frozen the PMU with hw_perf_save_disable. */ -int hw_perf_group_sched_in(struct perf_counter *group_leader, +int hw_perf_group_sched_in(struct perf_event *group_leader, struct perf_cpu_context *cpuctx, - struct perf_counter_context *ctx, int cpu) + struct perf_event_context *ctx, int cpu) { - struct cpu_hw_counters *cpuhw; + struct cpu_hw_events *cpuhw; long i, n, n0; - struct perf_counter *sub; + struct perf_event *sub; if (!ppmu) return 0; - cpuhw = &__get_cpu_var(cpu_hw_counters); - n0 = cpuhw->n_counters; - n = collect_events(group_leader, ppmu->n_counter - n0, - &cpuhw->counter[n0], &cpuhw->events[n0], + cpuhw = &__get_cpu_var(cpu_hw_events); + n0 = cpuhw->n_events; + n = collect_events(group_leader, ppmu->n_event - n0, + &cpuhw->event[n0], &cpuhw->events[n0], &cpuhw->flags[n0]); if (n < 0) return -EAGAIN; - if (check_excludes(cpuhw->counter, cpuhw->flags, n0, n)) + if (check_excludes(cpuhw->event, cpuhw->flags, n0, n)) return -EAGAIN; i = power_check_constraints(cpuhw, cpuhw->events, cpuhw->flags, n + n0); if (i < 0) return -EAGAIN; - cpuhw->n_counters = n0 + n; + cpuhw->n_events = n0 + n; cpuhw->n_added += n; /* - * OK, this group can go on; update counter states etc., - * and enable any software counters + * OK, this group can go on; update event states etc., + * and enable any software events */ for (i = n0; i < n0 + n; ++i) - cpuhw->counter[i]->hw.config = cpuhw->events[i]; + cpuhw->event[i]->hw.config = cpuhw->events[i]; cpuctx->active_oncpu += n; n = 1; - counter_sched_in(group_leader, cpu); + event_sched_in(group_leader, cpu); list_for_each_entry(sub, &group_leader->sibling_list, list_entry) { - if (sub->state != PERF_COUNTER_STATE_OFF) { - counter_sched_in(sub, cpu); + if (sub->state != PERF_EVENT_STATE_OFF) { + event_sched_in(sub, cpu); ++n; } } @@ -776,14 +776,14 @@ int hw_perf_group_sched_in(struct perf_counter *group_leader, } /* - * Add a counter to the PMU. - * If all counters are not already frozen, then we disable and + * Add a event to the PMU. + * If all events are not already frozen, then we disable and * re-enable the PMU in order to get hw_perf_enable to do the * actual work of reconfiguring the PMU. */ -static int power_pmu_enable(struct perf_counter *counter) +static int power_pmu_enable(struct perf_event *event) { - struct cpu_hw_counters *cpuhw; + struct cpu_hw_events *cpuhw; unsigned long flags; int n0; int ret = -EAGAIN; @@ -792,23 +792,23 @@ static int power_pmu_enable(struct perf_counter *counter) perf_disable(); /* - * Add the counter to the list (if there is room) + * Add the event to the list (if there is room) * and check whether the total set is still feasible. */ - cpuhw = &__get_cpu_var(cpu_hw_counters); - n0 = cpuhw->n_counters; - if (n0 >= ppmu->n_counter) + cpuhw = &__get_cpu_var(cpu_hw_events); + n0 = cpuhw->n_events; + if (n0 >= ppmu->n_event) goto out; - cpuhw->counter[n0] = counter; - cpuhw->events[n0] = counter->hw.config; - cpuhw->flags[n0] = counter->hw.counter_base; - if (check_excludes(cpuhw->counter, cpuhw->flags, n0, 1)) + cpuhw->event[n0] = event; + cpuhw->events[n0] = event->hw.config; + cpuhw->flags[n0] = event->hw.event_base; + if (check_excludes(cpuhw->event, cpuhw->flags, n0, 1)) goto out; if (power_check_constraints(cpuhw, cpuhw->events, cpuhw->flags, n0 + 1)) goto out; - counter->hw.config = cpuhw->events[n0]; - ++cpuhw->n_counters; + event->hw.config = cpuhw->events[n0]; + ++cpuhw->n_events; ++cpuhw->n_added; ret = 0; @@ -819,46 +819,46 @@ static int power_pmu_enable(struct perf_counter *counter) } /* - * Remove a counter from the PMU. + * Remove a event from the PMU. */ -static void power_pmu_disable(struct perf_counter *counter) +static void power_pmu_disable(struct perf_event *event) { - struct cpu_hw_counters *cpuhw; + struct cpu_hw_events *cpuhw; long i; unsigned long flags; local_irq_save(flags); perf_disable(); - power_pmu_read(counter); - - cpuhw = &__get_cpu_var(cpu_hw_counters); - for (i = 0; i < cpuhw->n_counters; ++i) { - if (counter == cpuhw->counter[i]) { - while (++i < cpuhw->n_counters) - cpuhw->counter[i-1] = cpuhw->counter[i]; - --cpuhw->n_counters; - ppmu->disable_pmc(counter->hw.idx - 1, cpuhw->mmcr); - if (counter->hw.idx) { - write_pmc(counter->hw.idx, 0); - counter->hw.idx = 0; + power_pmu_read(event); + + cpuhw = &__get_cpu_var(cpu_hw_events); + for (i = 0; i < cpuhw->n_events; ++i) { + if (event == cpuhw->event[i]) { + while (++i < cpuhw->n_events) + cpuhw->event[i-1] = cpuhw->event[i]; + --cpuhw->n_events; + ppmu->disable_pmc(event->hw.idx - 1, cpuhw->mmcr); + if (event->hw.idx) { + write_pmc(event->hw.idx, 0); + event->hw.idx = 0; } - perf_counter_update_userpage(counter); + perf_event_update_userpage(event); break; } } for (i = 0; i < cpuhw->n_limited; ++i) - if (counter == cpuhw->limited_counter[i]) + if (event == cpuhw->limited_event[i]) break; if (i < cpuhw->n_limited) { while (++i < cpuhw->n_limited) { - cpuhw->limited_counter[i-1] = cpuhw->limited_counter[i]; + cpuhw->limited_event[i-1] = cpuhw->limited_event[i]; cpuhw->limited_hwidx[i-1] = cpuhw->limited_hwidx[i]; } --cpuhw->n_limited; } - if (cpuhw->n_counters == 0) { - /* disable exceptions if no counters are running */ + if (cpuhw->n_events == 0) { + /* disable exceptions if no events are running */ cpuhw->mmcr[0] &= ~(MMCR0_PMXE | MMCR0_FCECE); } @@ -867,28 +867,28 @@ static void power_pmu_disable(struct perf_counter *counter) } /* - * Re-enable interrupts on a counter after they were throttled + * Re-enable interrupts on a event after they were throttled * because they were coming too fast. */ -static void power_pmu_unthrottle(struct perf_counter *counter) +static void power_pmu_unthrottle(struct perf_event *event) { s64 val, left; unsigned long flags; - if (!counter->hw.idx || !counter->hw.sample_period) + if (!event->hw.idx || !event->hw.sample_period) return; local_irq_save(flags); perf_disable(); - power_pmu_read(counter); - left = counter->hw.sample_period; - counter->hw.last_period = left; + power_pmu_read(event); + left = event->hw.sample_period; + event->hw.last_period = left; val = 0; if (left < 0x80000000L) val = 0x80000000L - left; - write_pmc(counter->hw.idx, val); - atomic64_set(&counter->hw.prev_count, val); - atomic64_set(&counter->hw.period_left, left); - perf_counter_update_userpage(counter); + write_pmc(event->hw.idx, val); + atomic64_set(&event->hw.prev_count, val); + atomic64_set(&event->hw.period_left, left); + perf_event_update_userpage(event); perf_enable(); local_irq_restore(flags); } @@ -901,29 +901,29 @@ struct pmu power_pmu = { }; /* - * Return 1 if we might be able to put counter on a limited PMC, + * Return 1 if we might be able to put event on a limited PMC, * or 0 if not. - * A counter can only go on a limited PMC if it counts something + * A event can only go on a limited PMC if it counts something * that a limited PMC can count, doesn't require interrupts, and * doesn't exclude any processor mode. */ -static int can_go_on_limited_pmc(struct perf_counter *counter, u64 ev, +static int can_go_on_limited_pmc(struct perf_event *event, u64 ev, unsigned int flags) { int n; u64 alt[MAX_EVENT_ALTERNATIVES]; - if (counter->attr.exclude_user - || counter->attr.exclude_kernel - || counter->attr.exclude_hv - || counter->attr.sample_period) + if (event->attr.exclude_user + || event->attr.exclude_kernel + || event->attr.exclude_hv + || event->attr.sample_period) return 0; if (ppmu->limited_pmc_event(ev)) return 1; /* - * The requested event isn't on a limited PMC already; + * The requested event_id isn't on a limited PMC already; * see if any alternative code goes on a limited PMC. */ if (!ppmu->get_alternatives) @@ -936,9 +936,9 @@ static int can_go_on_limited_pmc(struct perf_counter *counter, u64 ev, } /* - * Find an alternative event that goes on a normal PMC, if possible, - * and return the event code, or 0 if there is no such alternative. - * (Note: event code 0 is "don't count" on all machines.) + * Find an alternative event_id that goes on a normal PMC, if possible, + * and return the event_id code, or 0 if there is no such alternative. + * (Note: event_id code 0 is "don't count" on all machines.) */ static u64 normal_pmc_alternative(u64 ev, unsigned long flags) { @@ -952,26 +952,26 @@ static u64 normal_pmc_alternative(u64 ev, unsigned long flags) return alt[0]; } -/* Number of perf_counters counting hardware events */ -static atomic_t num_counters; +/* Number of perf_events counting hardware events */ +static atomic_t num_events; /* Used to avoid races in calling reserve/release_pmc_hardware */ static DEFINE_MUTEX(pmc_reserve_mutex); /* - * Release the PMU if this is the last perf_counter. + * Release the PMU if this is the last perf_event. */ -static void hw_perf_counter_destroy(struct perf_counter *counter) +static void hw_perf_event_destroy(struct perf_event *event) { - if (!atomic_add_unless(&num_counters, -1, 1)) { + if (!atomic_add_unless(&num_events, -1, 1)) { mutex_lock(&pmc_reserve_mutex); - if (atomic_dec_return(&num_counters) == 0) + if (atomic_dec_return(&num_events) == 0) release_pmc_hardware(); mutex_unlock(&pmc_reserve_mutex); } } /* - * Translate a generic cache event config to a raw event code. + * Translate a generic cache event_id config to a raw event_id code. */ static int hw_perf_cache_event(u64 config, u64 *eventp) { @@ -1000,39 +1000,39 @@ static int hw_perf_cache_event(u64 config, u64 *eventp) return 0; } -const struct pmu *hw_perf_counter_init(struct perf_counter *counter) +const struct pmu *hw_perf_event_init(struct perf_event *event) { u64 ev; unsigned long flags; - struct perf_counter *ctrs[MAX_HWCOUNTERS]; - u64 events[MAX_HWCOUNTERS]; - unsigned int cflags[MAX_HWCOUNTERS]; + struct perf_event *ctrs[MAX_HWEVENTS]; + u64 events[MAX_HWEVENTS]; + unsigned int cflags[MAX_HWEVENTS]; int n; int err; - struct cpu_hw_counters *cpuhw; + struct cpu_hw_events *cpuhw; if (!ppmu) return ERR_PTR(-ENXIO); - switch (counter->attr.type) { + switch (event->attr.type) { case PERF_TYPE_HARDWARE: - ev = counter->attr.config; + ev = event->attr.config; if (ev >= ppmu->n_generic || ppmu->generic_events[ev] == 0) return ERR_PTR(-EOPNOTSUPP); ev = ppmu->generic_events[ev]; break; case PERF_TYPE_HW_CACHE: - err = hw_perf_cache_event(counter->attr.config, &ev); + err = hw_perf_cache_event(event->attr.config, &ev); if (err) return ERR_PTR(err); break; case PERF_TYPE_RAW: - ev = counter->attr.config; + ev = event->attr.config; break; default: return ERR_PTR(-EINVAL); } - counter->hw.config_base = ev; - counter->hw.idx = 0; + event->hw.config_base = ev; + event->hw.idx = 0; /* * If we are not running on a hypervisor, force the @@ -1040,28 +1040,28 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter) * the user set it to. */ if (!firmware_has_feature(FW_FEATURE_LPAR)) - counter->attr.exclude_hv = 0; + event->attr.exclude_hv = 0; /* - * If this is a per-task counter, then we can use + * If this is a per-task event, then we can use * PM_RUN_* events interchangeably with their non RUN_* * equivalents, e.g. PM_RUN_CYC instead of PM_CYC. * XXX we should check if the task is an idle task. */ flags = 0; - if (counter->ctx->task) + if (event->ctx->task) flags |= PPMU_ONLY_COUNT_RUN; /* - * If this machine has limited counters, check whether this - * event could go on a limited counter. + * If this machine has limited events, check whether this + * event_id could go on a limited event. */ if (ppmu->flags & PPMU_LIMITED_PMC5_6) { - if (can_go_on_limited_pmc(counter, ev, flags)) { + if (can_go_on_limited_pmc(event, ev, flags)) { flags |= PPMU_LIMITED_PMC_OK; } else if (ppmu->limited_pmc_event(ev)) { /* - * The requested event is on a limited PMC, + * The requested event_id is on a limited PMC, * but we can't use a limited PMC; see if any * alternative goes on a normal PMC. */ @@ -1073,50 +1073,50 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter) /* * If this is in a group, check if it can go on with all the - * other hardware counters in the group. We assume the counter + * other hardware events in the group. We assume the event * hasn't been linked into its leader's sibling list at this point. */ n = 0; - if (counter->group_leader != counter) { - n = collect_events(counter->group_leader, ppmu->n_counter - 1, + if (event->group_leader != event) { + n = collect_events(event->group_leader, ppmu->n_event - 1, ctrs, events, cflags); if (n < 0) return ERR_PTR(-EINVAL); } events[n] = ev; - ctrs[n] = counter; + ctrs[n] = event; cflags[n] = flags; if (check_excludes(ctrs, cflags, n, 1)) return ERR_PTR(-EINVAL); - cpuhw = &get_cpu_var(cpu_hw_counters); + cpuhw = &get_cpu_var(cpu_hw_events); err = power_check_constraints(cpuhw, events, cflags, n + 1); - put_cpu_var(cpu_hw_counters); + put_cpu_var(cpu_hw_events); if (err) return ERR_PTR(-EINVAL); - counter->hw.config = events[n]; - counter->hw.counter_base = cflags[n]; - counter->hw.last_period = counter->hw.sample_period; - atomic64_set(&counter->hw.period_left, counter->hw.last_period); + event->hw.config = events[n]; + event->hw.event_base = cflags[n]; + event->hw.last_period = event->hw.sample_period; + atomic64_set(&event->hw.period_left, event->hw.last_period); /* * See if we need to reserve the PMU. - * If no counters are currently in use, then we have to take a + * If no events are currently in use, then we have to take a * mutex to ensure that we don't race with another task doing * reserve_pmc_hardware or release_pmc_hardware. */ err = 0; - if (!atomic_inc_not_zero(&num_counters)) { + if (!atomic_inc_not_zero(&num_events)) { mutex_lock(&pmc_reserve_mutex); - if (atomic_read(&num_counters) == 0 && - reserve_pmc_hardware(perf_counter_interrupt)) + if (atomic_read(&num_events) == 0 && + reserve_pmc_hardware(perf_event_interrupt)) err = -EBUSY; else - atomic_inc(&num_counters); + atomic_inc(&num_events); mutex_unlock(&pmc_reserve_mutex); } - counter->destroy = hw_perf_counter_destroy; + event->destroy = hw_perf_event_destroy; if (err) return ERR_PTR(err); @@ -1124,28 +1124,28 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter) } /* - * A counter has overflowed; update its count and record + * A event has overflowed; update its count and record * things if requested. Note that interrupts are hard-disabled * here so there is no possibility of being interrupted. */ -static void record_and_restart(struct perf_counter *counter, unsigned long val, +static void record_and_restart(struct perf_event *event, unsigned long val, struct pt_regs *regs, int nmi) { - u64 period = counter->hw.sample_period; + u64 period = event->hw.sample_period; s64 prev, delta, left; int record = 0; /* we don't have to worry about interrupts here */ - prev = atomic64_read(&counter->hw.prev_count); + prev = atomic64_read(&event->hw.prev_count); delta = (val - prev) & 0xfffffffful; - atomic64_add(delta, &counter->count); + atomic64_add(delta, &event->count); /* - * See if the total period for this counter has expired, + * See if the total period for this event has expired, * and update for the next period. */ val = 0; - left = atomic64_read(&counter->hw.period_left) - delta; + left = atomic64_read(&event->hw.period_left) - delta; if (period) { if (left <= 0) { left += period; @@ -1163,18 +1163,18 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val, if (record) { struct perf_sample_data data = { .addr = 0, - .period = counter->hw.last_period, + .period = event->hw.last_period, }; - if (counter->attr.sample_type & PERF_SAMPLE_ADDR) + if (event->attr.sample_type & PERF_SAMPLE_ADDR) perf_get_data_addr(regs, &data.addr); - if (perf_counter_overflow(counter, nmi, &data, regs)) { + if (perf_event_overflow(event, nmi, &data, regs)) { /* * Interrupts are coming too fast - throttle them - * by setting the counter to 0, so it will be + * by setting the event to 0, so it will be * at least 2^30 cycles until the next interrupt - * (assuming each counter counts at most 2 counts + * (assuming each event counts at most 2 counts * per cycle). */ val = 0; @@ -1182,15 +1182,15 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val, } } - write_pmc(counter->hw.idx, val); - atomic64_set(&counter->hw.prev_count, val); - atomic64_set(&counter->hw.period_left, left); - perf_counter_update_userpage(counter); + write_pmc(event->hw.idx, val); + atomic64_set(&event->hw.prev_count, val); + atomic64_set(&event->hw.period_left, left); + perf_event_update_userpage(event); } /* * Called from generic code to get the misc flags (i.e. processor mode) - * for an event. + * for an event_id. */ unsigned long perf_misc_flags(struct pt_regs *regs) { @@ -1198,13 +1198,13 @@ unsigned long perf_misc_flags(struct pt_regs *regs) if (flags) return flags; - return user_mode(regs) ? PERF_EVENT_MISC_USER : - PERF_EVENT_MISC_KERNEL; + return user_mode(regs) ? PERF_RECORD_MISC_USER : + PERF_RECORD_MISC_KERNEL; } /* * Called from generic code to get the instruction pointer - * for an event. + * for an event_id. */ unsigned long perf_instruction_pointer(struct pt_regs *regs) { @@ -1220,17 +1220,17 @@ unsigned long perf_instruction_pointer(struct pt_regs *regs) /* * Performance monitor interrupt stuff */ -static void perf_counter_interrupt(struct pt_regs *regs) +static void perf_event_interrupt(struct pt_regs *regs) { int i; - struct cpu_hw_counters *cpuhw = &__get_cpu_var(cpu_hw_counters); - struct perf_counter *counter; + struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct perf_event *event; unsigned long val; int found = 0; int nmi; if (cpuhw->n_limited) - freeze_limited_counters(cpuhw, mfspr(SPRN_PMC5), + freeze_limited_events(cpuhw, mfspr(SPRN_PMC5), mfspr(SPRN_PMC6)); perf_read_regs(regs); @@ -1241,26 +1241,26 @@ static void perf_counter_interrupt(struct pt_regs *regs) else irq_enter(); - for (i = 0; i < cpuhw->n_counters; ++i) { - counter = cpuhw->counter[i]; - if (!counter->hw.idx || is_limited_pmc(counter->hw.idx)) + for (i = 0; i < cpuhw->n_events; ++i) { + event = cpuhw->event[i]; + if (!event->hw.idx || is_limited_pmc(event->hw.idx)) continue; - val = read_pmc(counter->hw.idx); + val = read_pmc(event->hw.idx); if ((int)val < 0) { - /* counter has overflowed */ + /* event has overflowed */ found = 1; - record_and_restart(counter, val, regs, nmi); + record_and_restart(event, val, regs, nmi); } } /* - * In case we didn't find and reset the counter that caused - * the interrupt, scan all counters and reset any that are + * In case we didn't find and reset the event that caused + * the interrupt, scan all events and reset any that are * negative, to avoid getting continual interrupts. * Any that we processed in the previous loop will not be negative. */ if (!found) { - for (i = 0; i < ppmu->n_counter; ++i) { + for (i = 0; i < ppmu->n_event; ++i) { if (is_limited_pmc(i + 1)) continue; val = read_pmc(i + 1); @@ -1271,9 +1271,9 @@ static void perf_counter_interrupt(struct pt_regs *regs) /* * Reset MMCR0 to its normal value. This will set PMXE and - * clear FC (freeze counters) and PMAO (perf mon alert occurred) + * clear FC (freeze events) and PMAO (perf mon alert occurred) * and thus allow interrupts to occur again. - * XXX might want to use MSR.PM to keep the counters frozen until + * XXX might want to use MSR.PM to keep the events frozen until * we get back out of this interrupt. */ write_mmcr0(cpuhw, cpuhw->mmcr[0]); @@ -1284,9 +1284,9 @@ static void perf_counter_interrupt(struct pt_regs *regs) irq_exit(); } -void hw_perf_counter_setup(int cpu) +void hw_perf_event_setup(int cpu) { - struct cpu_hw_counters *cpuhw = &per_cpu(cpu_hw_counters, cpu); + struct cpu_hw_events *cpuhw = &per_cpu(cpu_hw_events, cpu); if (!ppmu) return; @@ -1308,7 +1308,7 @@ int register_power_pmu(struct power_pmu *pmu) * Use FCHV to ignore kernel events if MSR.HV is set. */ if (mfmsr() & MSR_HV) - freeze_counters_kernel = MMCR0_FCHV; + freeze_events_kernel = MMCR0_FCHV; #endif /* CONFIG_PPC64 */ return 0; diff --git a/arch/powerpc/kernel/power4-pmu.c b/arch/powerpc/kernel/power4-pmu.c index 3c90a3d9173..2a361cdda63 100644 --- a/arch/powerpc/kernel/power4-pmu.c +++ b/arch/powerpc/kernel/power4-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/string.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/power5+-pmu.c b/arch/powerpc/kernel/power5+-pmu.c index 31918af3e35..0f4c1c73a6a 100644 --- a/arch/powerpc/kernel/power5+-pmu.c +++ b/arch/powerpc/kernel/power5+-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/string.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/power5-pmu.c b/arch/powerpc/kernel/power5-pmu.c index 867f6f66396..c351b3a57fb 100644 --- a/arch/powerpc/kernel/power5-pmu.c +++ b/arch/powerpc/kernel/power5-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/string.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/kernel/power6-pmu.c index fa21890531d..ca399ba5034 100644 --- a/arch/powerpc/kernel/power6-pmu.c +++ b/arch/powerpc/kernel/power6-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/string.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 018d094d92f..28a4daacdc0 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <linux/string.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/ppc970-pmu.c b/arch/powerpc/kernel/ppc970-pmu.c index 75dccb71a04..479574413a9 100644 --- a/arch/powerpc/kernel/ppc970-pmu.c +++ b/arch/powerpc/kernel/ppc970-pmu.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/string.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <asm/reg.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 465e498bcb3..df45a7449a6 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -53,7 +53,7 @@ #include <linux/posix-timers.h> #include <linux/irq.h> #include <linux/delay.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <asm/io.h> #include <asm/processor.h> @@ -527,25 +527,25 @@ void __init iSeries_time_init_early(void) } #endif /* CONFIG_PPC_ISERIES */ -#if defined(CONFIG_PERF_COUNTERS) && defined(CONFIG_PPC32) -DEFINE_PER_CPU(u8, perf_counter_pending); +#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_PPC32) +DEFINE_PER_CPU(u8, perf_event_pending); -void set_perf_counter_pending(void) +void set_perf_event_pending(void) { - get_cpu_var(perf_counter_pending) = 1; + get_cpu_var(perf_event_pending) = 1; set_dec(1); - put_cpu_var(perf_counter_pending); + put_cpu_var(perf_event_pending); } -#define test_perf_counter_pending() __get_cpu_var(perf_counter_pending) -#define clear_perf_counter_pending() __get_cpu_var(perf_counter_pending) = 0 +#define test_perf_event_pending() __get_cpu_var(perf_event_pending) +#define clear_perf_event_pending() __get_cpu_var(perf_event_pending) = 0 -#else /* CONFIG_PERF_COUNTERS && CONFIG_PPC32 */ +#else /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */ -#define test_perf_counter_pending() 0 -#define clear_perf_counter_pending() +#define test_perf_event_pending() 0 +#define clear_perf_event_pending() -#endif /* CONFIG_PERF_COUNTERS && CONFIG_PPC32 */ +#endif /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */ /* * For iSeries shared processors, we have to let the hypervisor @@ -573,9 +573,9 @@ void timer_interrupt(struct pt_regs * regs) set_dec(DECREMENTER_MAX); #ifdef CONFIG_PPC32 - if (test_perf_counter_pending()) { - clear_perf_counter_pending(); - perf_counter_do_pending(); + if (test_perf_event_pending()) { + clear_perf_event_pending(); + perf_event_do_pending(); } if (atomic_read(&ppc_n_lost_interrupts) != 0) do_IRQ(regs); diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 830bef0a113..e7dae82c128 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -29,7 +29,7 @@ #include <linux/module.h> #include <linux/kprobes.h> #include <linux/kdebug.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <asm/firmware.h> #include <asm/page.h> @@ -171,7 +171,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, die("Weird page fault", regs, SIGSEGV); } - perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address); + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address); /* When running in the kernel we expect faults to occur only to * addresses in user space. All other faults represent errors in the @@ -312,7 +312,7 @@ good_area: } if (ret & VM_FAULT_MAJOR) { current->maj_flt++; - perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0, + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0, regs, address); #ifdef CONFIG_PPC_SMLPAR if (firmware_has_feature(FW_FEATURE_CMO)) { @@ -323,7 +323,7 @@ good_area: #endif } else { current->min_flt++; - perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0, + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0, regs, address); } up_read(&mm->mmap_sem); diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 9efc8bda01b..e382cae678b 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -280,9 +280,9 @@ config PPC_HAVE_PMU_SUPPORT config PPC_PERF_CTRS def_bool y - depends on PERF_COUNTERS && PPC_HAVE_PMU_SUPPORT + depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT help - This enables the powerpc-specific perf_counter back-end. + This enables the powerpc-specific perf_event back-end. config SMP depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE |