iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915/selftests: Add helper function measure_power

Browse Source 
move the power measurement and the triangle filter
to a different function. No functional changes.

Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220923110043.789178-3-riana.tauro@intel.com
This commit is contained in:
Riana Tauro 2022-09-23 16:30:42 +05:30 committed by Anshuman Gupta
parent c09ae4edd1
commit ac4e856024
1 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/i915/gt/selftest_rps.c
View File

@ -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;