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drm/i915/pmu: Support PMU for all engines

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Given how the metrics are already exported, we also need to run sampling
over engines from all GTs.

Problem of GT frequencies is left for later.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-3-umesh.nerlige.ramappa@intel.com
This commit is contained in:
Tvrtko Ursulin 2023-05-19 08:49:41 -07:00 committed by Umesh Nerlige Ramappa
parent a644fde77f
commit e367d3c451
1 changed files with 10 additions and 3 deletions
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13
drivers/gpu/drm/i915/i915_pmu.c
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@ -10,6 +10,7 @@
#include "gt/intel_engine_pm.h"
#include "gt/intel_engine_regs.h"
#include "gt/intel_engine_user.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_gt_regs.h"
#include "gt/intel_rc6.h"
@ -425,8 +426,9 @@ static enum hrtimer_restart i915_sample(struct hrtimer *hrtimer)
struct drm_i915_private *i915 =
container_of(hrtimer, struct drm_i915_private, pmu.timer);
struct i915_pmu *pmu = &i915->pmu;
struct intel_gt *gt = to_gt(i915);
unsigned int period_ns;
struct intel_gt *gt;
unsigned int i;
ktime_t now;
if (!READ_ONCE(pmu->timer_enabled))
@ -442,8 +444,13 @@ static enum hrtimer_restart i915_sample(struct hrtimer *hrtimer)
* grabbing the forcewake. However the potential error from timer call-
* back delay greatly dominates this so we keep it simple.
*/
engines_sample(gt, period_ns);
frequency_sample(gt, period_ns);
for_each_gt(gt, i915, i) {
engines_sample(gt, period_ns);
if (i == 0) /* FIXME */
frequency_sample(gt, period_ns);
}
hrtimer_forward(hrtimer, now, ns_to_ktime(PERIOD));