Re: [PATCH 2/3] drm/i915/selftests: Add helper function measure_power

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On 9/23/2022 4:00 AM, Riana Tauro wrote:
move the power measurement and the triangle filter
to a different function. No functional changes.

Signed-off-by: Riana Tauro <riana.tauro@xxxxxxxxx>

LGTM,

Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx>

---
  drivers/gpu/drm/i915/gt/selftest_rps.c | 12 +++++++++---
  1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c
index cfb4708dd62e..99a372486fb7 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -1107,21 +1107,27 @@ static u64 __measure_power(int duration_ms)
  	return div64_u64(1000 * 1000 * dE, dt);
  }
-static u64 measure_power_at(struct intel_rps *rps, int *freq)
+static u64 measure_power(struct intel_rps *rps, int *freq)
  {
  	u64 x[5];
  	int i;
- *freq = rps_set_check(rps, *freq);
  	for (i = 0; i < 5; i++)
  		x[i] = __measure_power(5);
-	*freq = (*freq + read_cagf(rps)) / 2;
+
+	*freq = (*freq + intel_rps_read_actual_frequency(rps)) / 2;
/* A simple triangle filter for better result stability */
  	sort(x, 5, sizeof(*x), cmp_u64, NULL);
  	return div_u64(x[1] + 2 * x[2] + x[3], 4);
  }
+static u64 measure_power_at(struct intel_rps *rps, int *freq)
+{
+	*freq = rps_set_check(rps, *freq);
+	return measure_power(rps, freq);
+}
+
  int live_rps_power(void *arg)
  {
  	struct intel_gt *gt = arg;



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