Re: [PATCH v2] drm/i915/selftests: Add delay to stabilize frequency in live_rps_power

[Nilawar, Badal]

On 03-12-2024 11:41, Sk Anirban wrote:

Add delays to allow frequency stabilization before power measurement
to fix sporadic power conservation issues in live_rps_power test.

v2:
   - Move delay to respective function (Badal)

Signed-off-by: Sk Anirban <sk.anir...@intel.com>
---
  drivers/gpu/drm/i915/gt/selftest_rps.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c 
b/drivers/gpu/drm/i915/gt/selftest_rps.c
index dcef8d498919..c207a4fb03bf 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -1125,6 +1125,7 @@ static u64 measure_power(struct intel_rps *rps, int *freq)
  static u64 measure_power_at(struct intel_rps *rps, int *freq)
  {
        *freq = rps_set_check(rps, *freq);
+       msleep(100);

Reviewed-by: Badal Nilawar <badal.nila...@intel.com>

Regards,
Badal

        return measure_power(rps, freq);
  }