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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 16:15:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 16:15:23 -0700
commitf0bb4c0ab064a8aeeffbda1cee380151a594eaab (patch)
tree14d55a89c5db455aa10ff9a96ca14c474a9c4d55 /include
parenta4883ef6af5e513a1e8c2ab9aab721604aa3a4f5 (diff)
parent983433b5812c5cf33a9008fa38c6f9b407fedb76 (diff)
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar: "Kernel improvements: - watchdog driver improvements by Li Zefan - Power7 CPI stack events related improvements by Sukadev Bhattiprolu - event multiplexing via hrtimers and other improvements by Stephane Eranian - kernel stack use optimization by Andrew Hunter - AMD IOMMU uncore PMU support by Suravee Suthikulpanit - NMI handling rate-limits by Dave Hansen - various hw_breakpoint fixes by Oleg Nesterov - hw_breakpoint overflow period sampling and related signal handling fixes by Jiri Olsa - Intel Haswell PMU support by Andi Kleen Tooling improvements: - Reset SIGTERM handler in workload child process, fix from David Ahern. - Makefile reorganization, prep work for Kconfig patches, from Jiri Olsa. - Add automated make test suite, from Jiri Olsa. - Add --percent-limit option to 'top' and 'report', from Namhyung Kim. - Sorting improvements, from Namhyung Kim. - Expand definition of sysfs format attribute, from Michael Ellerman. Tooling fixes: - 'perf tests' fixes from Jiri Olsa. - Make Power7 CPI stack events available in sysfs, from Sukadev Bhattiprolu. - Handle death by SIGTERM in 'perf record', fix from David Ahern. - Fix printing of perf_event_paranoid message, from David Ahern. - Handle realloc failures in 'perf kvm', from David Ahern. - Fix divide by 0 in variance, from David Ahern. - Save parent pid in thread struct, from David Ahern. - Handle JITed code in shared memory, from Andi Kleen. - Fixes for 'perf diff', from Jiri Olsa. - Remove some unused struct members, from Jiri Olsa. - Add missing liblk.a dependency for python/perf.so, fix from Jiri Olsa. - Respect CROSS_COMPILE in liblk.a, from Rabin Vincent. - No need to do locking when adding hists in perf report, only 'top' needs that, from Namhyung Kim. - Fix alignment of symbol column in in the hists browser (top, report) when -v is given, from NAmhyung Kim. - Fix 'perf top' -E option behavior, from Namhyung Kim. - Fix bug in isupper() and islower(), from Sukadev Bhattiprolu. - Fix compile errors in bp_signal 'perf test', from Sukadev Bhattiprolu. ... and more things" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (102 commits) perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable() perf/x86: Fix shared register mutual exclusion enforcement perf/x86/intel: Support full width counting x86: Add NMI duration tracepoints perf: Drop sample rate when sampling is too slow x86: Warn when NMI handlers take large amounts of time hw_breakpoint: Introduce "struct bp_cpuinfo" hw_breakpoint: Simplify *register_wide_hw_breakpoint() hw_breakpoint: Introduce cpumask_of_bp() hw_breakpoint: Simplify the "weight" usage in toggle_bp_slot() paths hw_breakpoint: Simplify list/idx mess in toggle_bp_slot() paths perf/x86/intel: Add mem-loads/stores support for Haswell perf/x86/intel: Support Haswell/v4 LBR format perf/x86/intel: Move NMI clearing to end of PMI handler perf/x86/intel: Add Haswell PEBS support perf/x86/intel: Add simple Haswell PMU support perf/x86/intel: Add Haswell PEBS record support perf/x86/intel: Fix sparse warning perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation perf/x86/amd: Add IOMMU Performance Counter resource management ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/perf_event.h28
-rw-r--r--include/trace/events/nmi.h37
-rw-r--r--include/uapi/linux/perf_event.h5
3 files changed, 65 insertions, 5 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c5b6dbf9c2fc..50b3efd14d29 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -73,13 +73,18 @@ struct perf_raw_record {
*
* support for mispred, predicted is optional. In case it
* is not supported mispred = predicted = 0.
+ *
+ * in_tx: running in a hardware transaction
+ * abort: aborting a hardware transaction
*/
struct perf_branch_entry {
__u64 from;
__u64 to;
__u64 mispred:1, /* target mispredicted */
predicted:1,/* target predicted */
- reserved:62;
+ in_tx:1, /* in transaction */
+ abort:1, /* transaction abort */
+ reserved:60;
};
/*
@@ -113,6 +118,8 @@ struct hw_perf_event_extra {
int idx; /* index in shared_regs->regs[] */
};
+struct event_constraint;
+
/**
* struct hw_perf_event - performance event hardware details:
*/
@@ -131,6 +138,8 @@ struct hw_perf_event {
struct hw_perf_event_extra extra_reg;
struct hw_perf_event_extra branch_reg;
+
+ struct event_constraint *constraint;
};
struct { /* software */
struct hrtimer hrtimer;
@@ -188,12 +197,13 @@ struct pmu {
struct device *dev;
const struct attribute_group **attr_groups;
- char *name;
+ const char *name;
int type;
int * __percpu pmu_disable_count;
struct perf_cpu_context * __percpu pmu_cpu_context;
int task_ctx_nr;
+ int hrtimer_interval_ms;
/*
* Fully disable/enable this PMU, can be used to protect from the PMI
@@ -500,8 +510,9 @@ struct perf_cpu_context {
struct perf_event_context *task_ctx;
int active_oncpu;
int exclusive;
+ struct hrtimer hrtimer;
+ ktime_t hrtimer_interval;
struct list_head rotation_list;
- int jiffies_interval;
struct pmu *unique_pmu;
struct perf_cgroup *cgrp;
};
@@ -517,7 +528,7 @@ struct perf_output_handle {
#ifdef CONFIG_PERF_EVENTS
-extern int perf_pmu_register(struct pmu *pmu, char *name, int type);
+extern int perf_pmu_register(struct pmu *pmu, const char *name, int type);
extern void perf_pmu_unregister(struct pmu *pmu);
extern int perf_num_counters(void);
@@ -695,10 +706,17 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
extern int sysctl_perf_event_paranoid;
extern int sysctl_perf_event_mlock;
extern int sysctl_perf_event_sample_rate;
+extern int sysctl_perf_cpu_time_max_percent;
+
+extern void perf_sample_event_took(u64 sample_len_ns);
extern int perf_proc_update_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
+extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos);
+
static inline bool perf_paranoid_tracepoint_raw(void)
{
@@ -742,6 +760,7 @@ extern unsigned int perf_output_skip(struct perf_output_handle *handle,
unsigned int len);
extern int perf_swevent_get_recursion_context(void);
extern void perf_swevent_put_recursion_context(int rctx);
+extern u64 perf_swevent_set_period(struct perf_event *event);
extern void perf_event_enable(struct perf_event *event);
extern void perf_event_disable(struct perf_event *event);
extern int __perf_event_disable(void *info);
@@ -781,6 +800,7 @@ static inline void perf_event_fork(struct task_struct *tsk) { }
static inline void perf_event_init(void) { }
static inline int perf_swevent_get_recursion_context(void) { return -1; }
static inline void perf_swevent_put_recursion_context(int rctx) { }
+static inline u64 perf_swevent_set_period(struct perf_event *event) { return 0; }
static inline void perf_event_enable(struct perf_event *event) { }
static inline void perf_event_disable(struct perf_event *event) { }
static inline int __perf_event_disable(void *info) { return -1; }
diff --git a/include/trace/events/nmi.h b/include/trace/events/nmi.h
new file mode 100644
index 000000000000..da3ee96b8d03
--- /dev/null
+++ b/include/trace/events/nmi.h
@@ -0,0 +1,37 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM nmi
+
+#if !defined(_TRACE_NMI_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_NMI_H
+
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(nmi_handler,
+
+ TP_PROTO(void *handler, s64 delta_ns, int handled),
+
+ TP_ARGS(handler, delta_ns, handled),
+
+ TP_STRUCT__entry(
+ __field( void *, handler )
+ __field( s64, delta_ns)
+ __field( int, handled )
+ ),
+
+ TP_fast_assign(
+ __entry->handler = handler;
+ __entry->delta_ns = delta_ns;
+ __entry->handled = handled;
+ ),
+
+ TP_printk("%ps() delta_ns: %lld handled: %d",
+ __entry->handler,
+ __entry->delta_ns,
+ __entry->handled)
+);
+
+#endif /* _TRACE_NMI_H */
+
+/* This part ust be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index fb104e51496e..0b1df41691e8 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -157,8 +157,11 @@ enum perf_branch_sample_type {
PERF_SAMPLE_BRANCH_ANY_CALL = 1U << 4, /* any call branch */
PERF_SAMPLE_BRANCH_ANY_RETURN = 1U << 5, /* any return branch */
PERF_SAMPLE_BRANCH_IND_CALL = 1U << 6, /* indirect calls */
+ PERF_SAMPLE_BRANCH_ABORT_TX = 1U << 7, /* transaction aborts */
+ PERF_SAMPLE_BRANCH_IN_TX = 1U << 8, /* in transaction */
+ PERF_SAMPLE_BRANCH_NO_TX = 1U << 9, /* not in transaction */
- PERF_SAMPLE_BRANCH_MAX = 1U << 7, /* non-ABI */
+ PERF_SAMPLE_BRANCH_MAX = 1U << 10, /* non-ABI */
};
#define PERF_SAMPLE_BRANCH_PLM_ALL \