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yaml
---
r: 361311
b: refs/heads/master
c: 1d9d863
h: refs/heads/master
i:
  361309: c7730f6
  361307: 7c0ad25
  361303: 3ec4041
  361295: f7a3e94
  361279: 69f1184
v: v3
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Stephane Eranian authored and Linus Torvalds committed Mar 15, 2013
1 parent c73810f commit b16db6d
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Showing 4 changed files with 13 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: a2362d24764a4e9a3187fc46b14e1d2cd0657700
refs/heads/master: 1d9d8639c063caf6efc2447f5f26aa637f844ff6
8 changes: 8 additions & 0 deletions trunk/arch/x86/kernel/cpu/perf_event_intel_ds.c
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Expand Up @@ -729,3 +729,11 @@ void intel_ds_init(void)
}
}
}

void perf_restore_debug_store(void)
{
if (!x86_pmu.bts && !x86_pmu.pebs)
return;

init_debug_store_on_cpu(smp_processor_id());
}
2 changes: 2 additions & 0 deletions trunk/arch/x86/power/cpu.c
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Expand Up @@ -11,6 +11,7 @@
#include <linux/suspend.h>
#include <linux/export.h>
#include <linux/smp.h>
#include <linux/perf_event.h>

#include <asm/pgtable.h>
#include <asm/proto.h>
Expand Down Expand Up @@ -228,6 +229,7 @@ static void __restore_processor_state(struct saved_context *ctxt)
do_fpu_end();
x86_platform.restore_sched_clock_state();
mtrr_bp_restore();
perf_restore_debug_store();
}

/* Needed by apm.c */
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2 changes: 2 additions & 0 deletions trunk/include/linux/perf_event.h
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Expand Up @@ -758,6 +758,7 @@ 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);
extern void perf_event_task_tick(void);
extern void perf_restore_debug_store(void);
#else
static inline void
perf_event_task_sched_in(struct task_struct *prev,
Expand Down Expand Up @@ -797,6 +798,7 @@ 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; }
static inline void perf_event_task_tick(void) { }
static inline void perf_restore_debug_store(void) { }
#endif

#define perf_output_put(handle, x) perf_output_copy((handle), &(x), sizeof(x))
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