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authorChris Wilson <chris@chris-wilson.co.uk>2019-11-09 10:53:56 +0000
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2019-11-12 10:22:46 +0200
commita7d87b70d6da96c6772e50728c8b4e78e4cbfd55 (patch)
tree8c32ec5ba432e8da8ce33ca69bae797155fa42d1 /drivers/gpu/drm/i915
parentd231c15aff1eb4bde51036fb1e0aaec1706cf940 (diff)
drm/i915/pmu: "Frequency" is reported as accumulated cycles
We report "frequencies" (actual-frequency, requested-frequency) as the number of accumulated cycles so that the average frequency over that period may be determined by the user. This means the units we report to the user are Mcycles (or just M), not MHz. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: stable@vger.kernel.org Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191109105356.5273-1-chris@chris-wilson.co.uk (cherry picked from commit e88866ef02851c88fe95a4bb97820b94b4d46f36) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/i915_pmu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
index 05395015d1f2..0d40dccd1409 100644
--- a/drivers/gpu/drm/i915/i915_pmu.c
+++ b/drivers/gpu/drm/i915/i915_pmu.c
@@ -878,8 +878,8 @@ create_event_attributes(struct i915_pmu *pmu)
const char *name;
const char *unit;
} events[] = {
- __event(I915_PMU_ACTUAL_FREQUENCY, "actual-frequency", "MHz"),
- __event(I915_PMU_REQUESTED_FREQUENCY, "requested-frequency", "MHz"),
+ __event(I915_PMU_ACTUAL_FREQUENCY, "actual-frequency", "M"),
+ __event(I915_PMU_REQUESTED_FREQUENCY, "requested-frequency", "M"),
__event(I915_PMU_INTERRUPTS, "interrupts", NULL),
__event(I915_PMU_RC6_RESIDENCY, "rc6-residency", "ns"),
};