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Message-ID: <20100121153833.GA30774@elte.hu>
Date: Thu, 21 Jan 2010 16:38:33 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Paul Mackerras <paulus@...ba.org>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [GIT PULL] perf fixes
Linus,
Please pull the latest perf-fixes-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf-fixes-for-linus
Thanks,
Ingo
------------------>
Arjan van de Ven (1):
perf timechart: Use tid not pid for COMM change
Luca Barbieri (1):
hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference change
Pekka Enberg (2):
perf kmem: Increase "Hit" column length
perf kmem: Print usage help for unknown commands
Peter Zijlstra (3):
perf: Fix perf_event_do_pending() fallback callsite
perf: Honour event state for aux stream data
perf: Change the is_software_event() definition
Stephane Eranian (1):
perf: x86: Add support for the ANY bit
arch/x86/include/asm/perf_event.h | 1 +
arch/x86/kernel/cpu/perf_event.c | 7 +++++++
arch/x86/mm/kmmio.c | 7 ++++---
include/linux/perf_event.h | 11 ++++++++---
kernel/perf_event.c | 9 +++++++++
kernel/timer.c | 3 +--
tools/perf/builtin-kmem.c | 7 ++++---
tools/perf/builtin-timechart.c | 2 +-
8 files changed, 35 insertions(+), 12 deletions(-)
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 8d9f854..1380367 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -19,6 +19,7 @@
#define MSR_ARCH_PERFMON_EVENTSEL1 0x187
#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22)
+#define ARCH_PERFMON_EVENTSEL_ANY (1 << 21)
#define ARCH_PERFMON_EVENTSEL_INT (1 << 20)
#define ARCH_PERFMON_EVENTSEL_OS (1 << 17)
#define ARCH_PERFMON_EVENTSEL_USR (1 << 16)
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index d616c06..8c1c070 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1343,6 +1343,13 @@ intel_pmu_enable_fixed(struct hw_perf_event *hwc, int __idx)
bits |= 0x2;
if (hwc->config & ARCH_PERFMON_EVENTSEL_OS)
bits |= 0x1;
+
+ /*
+ * ANY bit is supported in v3 and up
+ */
+ if (x86_pmu.version > 2 && hwc->config & ARCH_PERFMON_EVENTSEL_ANY)
+ bits |= 0x4;
+
bits <<= (idx * 4);
mask = 0xfULL << (idx * 4);
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index c0f6198..536fb68 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -538,14 +538,15 @@ static int
kmmio_die_notifier(struct notifier_block *nb, unsigned long val, void *args)
{
struct die_args *arg = args;
+ unsigned long* dr6_p = (unsigned long *)ERR_PTR(arg->err);
- if (val == DIE_DEBUG && (arg->err & DR_STEP))
- if (post_kmmio_handler(arg->err, arg->regs) == 1) {
+ if (val == DIE_DEBUG && (*dr6_p & DR_STEP))
+ if (post_kmmio_handler(*dr6_p, arg->regs) == 1) {
/*
* Reset the BS bit in dr6 (pointed by args->err) to
* denote completion of processing
*/
- (*(unsigned long *)ERR_PTR(arg->err)) &= ~DR_STEP;
+ *dr6_p &= ~DR_STEP;
return NOTIFY_STOP;
}
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c66b34f..8fa7187 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -814,9 +814,14 @@ extern int perf_event_overflow(struct perf_event *event, int nmi,
*/
static inline int is_software_event(struct perf_event *event)
{
- return (event->attr.type != PERF_TYPE_RAW) &&
- (event->attr.type != PERF_TYPE_HARDWARE) &&
- (event->attr.type != PERF_TYPE_HW_CACHE);
+ switch (event->attr.type) {
+ case PERF_TYPE_SOFTWARE:
+ case PERF_TYPE_TRACEPOINT:
+ /* for now the breakpoint stuff also works as software event */
+ case PERF_TYPE_BREAKPOINT:
+ return 1;
+ }
+ return 0;
}
extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 603c0d8..d27746b 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3268,6 +3268,9 @@ static void perf_event_task_output(struct perf_event *event,
static int perf_event_task_match(struct perf_event *event)
{
+ if (event->state != PERF_EVENT_STATE_ACTIVE)
+ return 0;
+
if (event->cpu != -1 && event->cpu != smp_processor_id())
return 0;
@@ -3377,6 +3380,9 @@ static void perf_event_comm_output(struct perf_event *event,
static int perf_event_comm_match(struct perf_event *event)
{
+ if (event->state != PERF_EVENT_STATE_ACTIVE)
+ return 0;
+
if (event->cpu != -1 && event->cpu != smp_processor_id())
return 0;
@@ -3494,6 +3500,9 @@ static void perf_event_mmap_output(struct perf_event *event,
static int perf_event_mmap_match(struct perf_event *event,
struct perf_mmap_event *mmap_event)
{
+ if (event->state != PERF_EVENT_STATE_ACTIVE)
+ return 0;
+
if (event->cpu != -1 && event->cpu != smp_processor_id())
return 0;
diff --git a/kernel/timer.c b/kernel/timer.c
index 15533b7..c61a794 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1198,6 +1198,7 @@ void update_process_times(int user_tick)
run_local_timers();
rcu_check_callbacks(cpu, user_tick);
printk_tick();
+ perf_event_do_pending();
scheduler_tick();
run_posix_cpu_timers(p);
}
@@ -1209,8 +1210,6 @@ static void run_timer_softirq(struct softirq_action *h)
{
struct tvec_base *base = __get_cpu_var(tvec_bases);
- perf_event_do_pending();
-
hrtimer_run_pending();
if (time_after_eq(jiffies, base->timer_jiffies))
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 7ceb741..93c67bf 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -375,7 +375,7 @@ static void __print_result(struct rb_root *root, struct perf_session *session,
printf("%.102s\n", graph_dotted_line);
printf(" %-34s |", is_caller ? "Callsite": "Alloc Ptr");
- printf(" Total_alloc/Per | Total_req/Per | Hit | Ping-pong | Frag\n");
+ printf(" Total_alloc/Per | Total_req/Per | Hit | Ping-pong | Frag\n");
printf("%.102s\n", graph_dotted_line);
next = rb_first(root);
@@ -401,7 +401,7 @@ static void __print_result(struct rb_root *root, struct perf_session *session,
snprintf(buf, sizeof(buf), "%#Lx", addr);
printf(" %-34s |", buf);
- printf(" %9llu/%-5lu | %9llu/%-5lu | %6lu | %8lu | %6.3f%%\n",
+ printf(" %9llu/%-5lu | %9llu/%-5lu | %8lu | %8lu | %6.3f%%\n",
(unsigned long long)data->bytes_alloc,
(unsigned long)data->bytes_alloc / data->hit,
(unsigned long long)data->bytes_req,
@@ -784,7 +784,8 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
setup_sorting(&alloc_sort, default_sort_order);
return __cmd_kmem();
- }
+ } else
+ usage_with_options(kmem_usage, kmem_options);
return 0;
}
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a589a43..3f8bbcf 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -280,7 +280,7 @@ static u64 cpus_pstate_state[MAX_CPUS];
static int process_comm_event(event_t *event, struct perf_session *session __used)
{
- pid_set_comm(event->comm.pid, event->comm.comm);
+ pid_set_comm(event->comm.tid, event->comm.comm);
return 0;
}
--
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