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drm/i915/pmu: Add interrupt count metric

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For clients like intel-gpu-overlay it is easier to read the
count via the perf API than having to parse /proc.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171121181852.16128-7-tvrtko.ursulin@linux.intel.com
This commit is contained in:
Tvrtko Ursulin 2017-11-21 18:18:50 +00:00
parent b3add01ee2
commit 0cd4684d6e
2 changed files with 26 additions and 1 deletions
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4
include/uapi/drm/i915_drm.h
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@ -139,7 +139,9 @@ enum drm_i915_pmu_engine_sample {
#define I915_PMU_ACTUAL_FREQUENCY __I915_PMU_OTHER(0)
#define I915_PMU_REQUESTED_FREQUENCY __I915_PMU_OTHER(1)
#define I915_PMU_LAST I915_PMU_REQUESTED_FREQUENCY
#define I915_PMU_INTERRUPTS __I915_PMU_OTHER(2)
#define I915_PMU_LAST I915_PMU_INTERRUPTS
/* Each region is a minimum of 16k, and there are at most 255 of them.
*/