xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge remote branch 'tip/perf/core' into oprofile/core

Browse Source 
Conflicts:
	arch/arm/oprofile/common.c
	kernel/perf_event.c
This commit is contained in:
Robert Richter
2010-10-15 12:45:00 +02:00
parent 7df01d96b2 0fdf13606b
commit 6268464b37
463 changed files with 8396 additions and 3865 deletions
Download Patch File Download Diff File Expand all files Collapse all files

141
arch/sh/kernel/perf_event.c
View File

@@ -224,50 +224,80 @@ again:
local64_add(delta, &event->count);
}
static void sh_pmu_disable(struct perf_event *event)
static void sh_pmu_stop(struct perf_event *event, int flags)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx = hwc->idx;
clear_bit(idx, cpuc->active_mask);
sh_pmu->disable(hwc, idx);
if (!(event->hw.state & PERF_HES_STOPPED)) {
sh_pmu->disable(hwc, idx);
cpuc->events[idx] = NULL;
event->hw.state |= PERF_HES_STOPPED;
}
barrier();
if ((flags & PERF_EF_UPDATE) && !(event->hw.state & PERF_HES_UPTODATE)) {
sh_perf_event_update(event, &event->hw, idx);
event->hw.state |= PERF_HES_UPTODATE;
}
}
sh_perf_event_update(event, &event->hw, idx);
static void sh_pmu_start(struct perf_event *event, int flags)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx = hwc->idx;
cpuc->events[idx] = NULL;
clear_bit(idx, cpuc->used_mask);
if (WARN_ON_ONCE(idx == -1))
return;
if (flags & PERF_EF_RELOAD)
WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
cpuc->events[idx] = event;
event->hw.state = 0;
sh_pmu->enable(hwc, idx);
}
static void sh_pmu_del(struct perf_event *event, int flags)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
sh_pmu_stop(event, PERF_EF_UPDATE);
__clear_bit(event->hw.idx, cpuc->used_mask);
perf_event_update_userpage(event);
}
static int sh_pmu_enable(struct perf_event *event)
static int sh_pmu_add(struct perf_event *event, int flags)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx = hwc->idx;
int ret = -EAGAIN;
if (test_and_set_bit(idx, cpuc->used_mask)) {
perf_pmu_disable(event->pmu);
if (__test_and_set_bit(idx, cpuc->used_mask)) {
idx = find_first_zero_bit(cpuc->used_mask, sh_pmu->num_events);
if (idx == sh_pmu->num_events)
return -EAGAIN;
goto out;
set_bit(idx, cpuc->used_mask);
__set_bit(idx, cpuc->used_mask);
hwc->idx = idx;
}
sh_pmu->disable(hwc, idx);
cpuc->events[idx] = event;
set_bit(idx, cpuc->active_mask);
sh_pmu->enable(hwc, idx);
event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
if (flags & PERF_EF_START)
sh_pmu_start(event, PERF_EF_RELOAD);
perf_event_update_userpage(event);
return 0;
ret = 0;
out:
perf_pmu_enable(event->pmu);
return ret;
}
static void sh_pmu_read(struct perf_event *event)
@@ -275,24 +305,56 @@ static void sh_pmu_read(struct perf_event *event)
sh_perf_event_update(event, &event->hw, event->hw.idx);
}
static const struct pmu pmu = {
.enable = sh_pmu_enable,
.disable = sh_pmu_disable,
.read = sh_pmu_read,
};
const struct pmu *hw_perf_event_init(struct perf_event *event)
static int sh_pmu_event_init(struct perf_event *event)
{
int err = __hw_perf_event_init(event);
int err;
switch (event->attr.type) {
case PERF_TYPE_RAW:
case PERF_TYPE_HW_CACHE:
case PERF_TYPE_HARDWARE:
err = __hw_perf_event_init(event);
break;
default:
return -ENOENT;
}
if (unlikely(err)) {
if (event->destroy)
event->destroy(event);
return ERR_PTR(err);
}
return &pmu;
return err;
}
static void sh_pmu_enable(struct pmu *pmu)
{
if (!sh_pmu_initialized())
return;
sh_pmu->enable_all();
}
static void sh_pmu_disable(struct pmu *pmu)
{
if (!sh_pmu_initialized())
return;
sh_pmu->disable_all();
}
static struct pmu pmu = {
.pmu_enable = sh_pmu_enable,
.pmu_disable = sh_pmu_disable,
.event_init = sh_pmu_event_init,
.add = sh_pmu_add,
.del = sh_pmu_del,
.start = sh_pmu_start,
.stop = sh_pmu_stop,
.read = sh_pmu_read,
};
static void sh_pmu_setup(int cpu)
{
struct cpu_hw_events *cpuhw = &per_cpu(cpu_hw_events, cpu);
@@ -317,32 +379,17 @@ sh_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
return NOTIFY_OK;
}
void hw_perf_enable(void)
{
if (!sh_pmu_initialized())
return;
sh_pmu->enable_all();
}
void hw_perf_disable(void)
{
if (!sh_pmu_initialized())
return;
sh_pmu->disable_all();
}
int __cpuinit register_sh_pmu(struct sh_pmu *pmu)
int __cpuinit register_sh_pmu(struct sh_pmu *_pmu)
{
if (sh_pmu)
return -EBUSY;
sh_pmu = pmu;
sh_pmu = _pmu;
pr_info("Performance Events: %s support registered\n", pmu->name);
pr_info("Performance Events: %s support registered\n", _pmu->name);
WARN_ON(pmu->num_events > MAX_HWEVENTS);
WARN_ON(_pmu->num_events > MAX_HWEVENTS);
perf_pmu_register(&pmu);
perf_cpu_notifier(sh_pmu_notifier);
return 0;
}