[tip:perfcounters/rename] perf_counter: Rename 'event' to event_id/hw_event

tip-bot for Ingo Molnar
2009-09-21T12:53:08Z

Commit-ID: dfc65094d0313cc48969fa60bcf33d693aeb05a7
Gitweb: http://git.kernel.org/tip/dfc65094d0313cc48969fa60bcf33d693aeb05a7
Author: Ingo Molnar <mingo@elte.hu>
AuthorDate: Mon, 21 Sep 2009 11:31:35 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Mon, 21 Sep 2009 12:54:59 +0200

perf_counter: Rename 'event' to event_id/hw_event

In preparation to the renames, to avoid a namespace clash.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

---
arch/x86/kernel/cpu/perf_counter.c | 48 ++++++++++++++++++------------------
kernel/perf_counter.c | 26 +++++++++---------
2 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index a6c8b27..b1f1156 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -124,9 +124,9 @@ static const u64 p6_perfmon_event_map[] =
[PERF_COUNT_HW_BUS_CYCLES] = 0x0062,
};

-static u64 p6_pmu_event_map(int event)
+static u64 p6_pmu_event_map(int hw_event)
{
- return p6_perfmon_event_map[event];
+ return p6_perfmon_event_map[hw_event];
}

/*
@@ -137,7 +137,7 @@ static u64 p6_pmu_event_map(int event)
*/
#define P6_NOP_COUNTER 0x0000002EULL

-static u64 p6_pmu_raw_event(u64 event)
+static u64 p6_pmu_raw_event(u64 hw_event)
{
#define P6_EVNTSEL_EVENT_MASK 0x000000FFULL
#define P6_EVNTSEL_UNIT_MASK 0x0000FF00ULL
@@ -152,7 +152,7 @@ static u64 p6_pmu_raw_event(u64 event)
P6_EVNTSEL_INV_MASK | \
P6_EVNTSEL_COUNTER_MASK)

- return event & P6_EVNTSEL_MASK;
+ return hw_event & P6_EVNTSEL_MASK;
}

@@ -170,16 +170,16 @@ static const u64 intel_perfmon_event_map[] =
[PERF_COUNT_HW_BUS_CYCLES] = 0x013c,
};

-static u64 intel_pmu_event_map(int event)
+static u64 intel_pmu_event_map(int hw_event)
{
- return intel_perfmon_event_map[event];
+ return intel_perfmon_event_map[hw_event];
}

/*
- * Generalized hw caching related event table, filled
+ * Generalized hw caching related hw_event table, filled
* in on a per model basis. A value of 0 means
- * 'not supported', -1 means 'event makes no sense on
- * this CPU', any other value means the raw event
+ * 'not supported', -1 means 'hw_event makes no sense on
+ * this CPU', any other value means the raw hw_event
* ID.
*/

@@ -463,7 +463,7 @@ static const u64 atom_hw_cache_event_ids
},
};

-static u64 intel_pmu_raw_event(u64 event)
+static u64 intel_pmu_raw_event(u64 hw_event)
{
#define CORE_EVNTSEL_EVENT_MASK 0x000000FFULL
#define CORE_EVNTSEL_UNIT_MASK 0x0000FF00ULL
@@ -478,7 +478,7 @@ static u64 intel_pmu_raw_event(u64 event)
CORE_EVNTSEL_INV_MASK | \
CORE_EVNTSEL_COUNTER_MASK)

- return event & CORE_EVNTSEL_MASK;
+ return hw_event & CORE_EVNTSEL_MASK;
}

static const u64 amd_hw_cache_event_ids
@@ -585,12 +585,12 @@ static const u64 amd_perfmon_event_map[] =
[PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
};

-static u64 amd_pmu_event_map(int event)
+static u64 amd_pmu_event_map(int hw_event)
{
- return amd_perfmon_event_map[event];
+ return amd_perfmon_event_map[hw_event];
}

-static u64 amd_pmu_raw_event(u64 event)
+static u64 amd_pmu_raw_event(u64 hw_event)
{
#define K7_EVNTSEL_EVENT_MASK 0x7000000FFULL
#define K7_EVNTSEL_UNIT_MASK 0x00000FF00ULL
@@ -605,7 +605,7 @@ static u64 amd_pmu_raw_event(u64 event)
K7_EVNTSEL_INV_MASK | \
K7_EVNTSEL_COUNTER_MASK)

- return event & K7_EVNTSEL_MASK;
+ return hw_event & K7_EVNTSEL_MASK;
}

/*
@@ -956,7 +956,7 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
}

/*
- * Raw event type provide the config in the event structure
+ * Raw hw_event type provide the config in the hw_event structure
*/
if (attr->type == PERF_TYPE_RAW) {
hwc->config |= x86_pmu.raw_event(attr->config);
@@ -1245,7 +1245,7 @@ x86_perf_counter_set_period(struct perf_counter *counter,
ret = 1;
}
/*
- * Quirk: certain CPUs dont like it if just 1 event is left:
+ * Quirk: certain CPUs dont like it if just 1 hw_event is left:
*/
if (unlikely(left < 2))
left = 2;
@@ -1337,11 +1337,11 @@ static void amd_pmu_enable_counter(struct hw_perf_counter *hwc, int idx)
static int
fixed_mode_idx(struct perf_counter *counter, struct hw_perf_counter *hwc)
{
- unsigned int event;
+ unsigned int hw_event;

- event = hwc->config & ARCH_PERFMON_EVENT_MASK;
+ hw_event = hwc->config & ARCH_PERFMON_EVENT_MASK;

- if (unlikely((event ==
+ if (unlikely((hw_event ==
x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS)) &&
(hwc->sample_period == 1)))
return X86_PMC_IDX_FIXED_BTS;
@@ -1349,11 +1349,11 @@ fixed_mode_idx(struct perf_counter *counter, struct hw_perf_counter *hwc)
if (!x86_pmu.num_counters_fixed)
return -1;

- if (unlikely(event == x86_pmu.event_map(PERF_COUNT_HW_INSTRUCTIONS)))
+ if (unlikely(hw_event == x86_pmu.event_map(PERF_COUNT_HW_INSTRUCTIONS)))
return X86_PMC_IDX_FIXED_INSTRUCTIONS;
- if (unlikely(event == x86_pmu.event_map(PERF_COUNT_HW_CPU_CYCLES)))
+ if (unlikely(hw_event == x86_pmu.event_map(PERF_COUNT_HW_CPU_CYCLES)))
return X86_PMC_IDX_FIXED_CPU_CYCLES;
- if (unlikely(event == x86_pmu.event_map(PERF_COUNT_HW_BUS_CYCLES)))
+ if (unlikely(hw_event == x86_pmu.event_map(PERF_COUNT_HW_BUS_CYCLES)))
return X86_PMC_IDX_FIXED_BUS_CYCLES;

return -1;
@@ -1970,7 +1970,7 @@ static int intel_pmu_init(void)

/*
* Check whether the Architectural PerfMon supports
- * Branch Misses Retired Event or not.
+ * Branch Misses Retired hw_event or not.
*/
cpuid(10, &eax.full, &ebx, &unused, &edx.full);
if (eax.split.mask_length <= ARCH_PERFMON_BRANCH_MISSES_RETIRED)
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 13ad73a..62de0db 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -3044,22 +3044,22 @@ perf_counter_read_event(struct perf_counter *counter,
struct task_struct *task)
{
struct perf_output_handle handle;
- struct perf_read_event event = {
+ struct perf_read_event read_event = {
.header = {
.type = PERF_EVENT_READ,
.misc = 0,
- .size = sizeof(event) + perf_counter_read_size(counter),
+ .size = sizeof(read_event) + perf_counter_read_size(counter),
},
.pid = perf_counter_pid(counter, task),
.tid = perf_counter_tid(counter, task),
};
int ret;

- ret = perf_output_begin(&handle, counter, event.header.size, 0, 0);
+ ret = perf_output_begin(&handle, counter, read_event.header.size, 0, 0);
if (ret)
return;

- perf_output_put(&handle, event);
+ perf_output_put(&handle, read_event);
perf_output_read(&handle, counter);

perf_output_end(&handle);
@@ -3698,14 +3698,14 @@ static int perf_swcounter_is_counting(struct perf_counter *counter)

static int perf_swcounter_match(struct perf_counter *counter,
enum perf_type_id type,
- u32 event, struct pt_regs *regs)
+ u32 event_id, struct pt_regs *regs)
{
if (!perf_swcounter_is_counting(counter))
return 0;

if (counter->attr.type != type)
return 0;
- if (counter->attr.config != event)
+ if (counter->attr.config != event_id)
return 0;

if (regs) {
@@ -3721,7 +3721,7 @@ static int perf_swcounter_match(struct perf_counter *counter,

static void perf_swcounter_ctx_event(struct perf_counter_context *ctx,
enum perf_type_id type,
- u32 event, u64 nr, int nmi,
+ u32 event_id, u64 nr, int nmi,
struct perf_sample_data *data,
struct pt_regs *regs)
{
@@ -3732,7 +3732,7 @@ static void perf_swcounter_ctx_event(struct perf_counter_context *ctx,

rcu_read_lock();
list_for_each_entry_rcu(counter, &ctx->event_list, event_entry) {
- if (perf_swcounter_match(counter, type, event, regs))
+ if (perf_swcounter_match(counter, type, event_id, regs))
perf_swcounter_add(counter, nr, nmi, data, regs);
}
rcu_read_unlock();
@@ -4036,17 +4036,17 @@ atomic_t perf_swcounter_enabled[PERF_COUNT_SW_MAX];

static void sw_perf_counter_destroy(struct perf_counter *counter)
{
- u64 event = counter->attr.config;
+ u64 event_id = counter->attr.config;

WARN_ON(counter->parent);

- atomic_dec(&perf_swcounter_enabled[event]);
+ atomic_dec(&perf_swcounter_enabled[event_id]);
}

static const struct pmu *sw_perf_counter_init(struct perf_counter *counter)
{
const struct pmu *pmu = NULL;
- u64 event = counter->attr.config;
+ u64 event_id = counter->attr.config;

/*
* Software counters (currently) can't in general distinguish
@@ -4055,7 +4055,7 @@ static const struct pmu *sw_perf_counter_init(struct perf_counter *counter)
* to be kernel events, and page faults are never hypervisor
* events.
*/
- switch (event) {
+ switch (event_id) {
case PERF_COUNT_SW_CPU_CLOCK:
pmu = &perf_ops_cpu_clock;

@@ -4077,7 +4077,7 @@ static const struct pmu *sw_perf_counter_init(struct perf_counter *counter)
case PERF_COUNT_SW_CONTEXT_SWITCHES:
case PERF_COUNT_SW_CPU_MIGRATIONS:
if (!counter->parent) {
- atomic_inc(&perf_swcounter_enabled[event]);
+ atomic_inc(&perf_swcounter_enabled[event_id]);
counter->destroy = sw_perf_counter_destroy;
}
pmu = &perf_ops_generic;