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| author | Stephane Eranian <eranian@google.com> | 2014-02-11 15:20:10 (GMT) |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-02-21 20:49:07 (GMT) |
| commit | 79859cce5a551c3bcd8d36a6287f9d83568ccedb (patch) | |
| tree | ae108949a67ec9478debf8f63dca1c0faeb98efc /arch/x86/kernel/cpu/perf_event_intel_uncore.h | |
| parent | ae58faf90050ea72c289f62c4bc9a5bb8ae7f0bd (diff) | |
| download | linux-79859cce5a551c3bcd8d36a6287f9d83568ccedb.tar.xz | |
perf/x86/uncore: make hrtimer timeout configurable per box
This patch makes the hrtimer timeout configurable per PMU
box. Not all counters have necessarily the same width and
rate, thus the default timeout of 60s may need to be adjusted.
This patch adds box->hrtimer_duration. It is set to default
when the box is allocated. It can be overriden when the box
is initialized.
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: ak@linux.intel.com
Cc: zheng.z.yan@intel.com
Cc: peterz@infradead.org
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1392132015-14521-5-git-send-email-eranian@google.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event_intel_uncore.h')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_intel_uncore.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h index 77dc9a5..7efd298 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h @@ -489,6 +489,7 @@ struct intel_uncore_box { u64 tags[UNCORE_PMC_IDX_MAX]; struct pci_dev *pci_dev; struct intel_uncore_pmu *pmu; + u64 hrtimer_duration; /* hrtimer timeout for this box */ struct hrtimer hrtimer; struct list_head list; struct intel_uncore_extra_reg shared_regs[0]; |