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| author | Vinay Belgaumkar <vinay.belgaumkar@intel.com> | 2025-04-28 21:35:55 +0300 |
|---|---|---|
| committer | Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2025-05-01 23:02:28 +0300 |
| commit | d26e55085f4b7a63677670db827541209257b313 (patch) | |
| tree | e4e601478a7f7dbaaed7bf9eeabb6b7e79dafc9e /tools/perf/scripts/python/gecko.py | |
| parent | ce7743bc1b93cd81b5234b8bb9587607af3f6c2a (diff) | |
| download | linux-d26e55085f4b7a63677670db827541209257b313.tar.xz | |
drm/i915/slpc: Balance the inc/dec for num_waiters
As seen in some recent failures, SLPC num_waiters value is < 0.
This happens because the inc/dec are not balanced. We should skip
decrement for the same conditions as the increment. Currently, we
do that for power saving profile mode. This patch also ensures that
num_waiters is incremented in the case min_softlimit is at boost
freq. It ensures that we don't reduce the frequency while this request
is in flight.
v2: Add Fixes tags
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13598
Fixes: f864a29afc32 ("drm/i915/slpc: Optmize waitboost for SLPC")
Fixes: 4a82ceb04ad4 ("drm/i915/slpc: Add sysfs for SLPC power profiles")
Cc: Sk Anirban <sk.anirban@intel.com>
Reviewed-by: Sk Anirban <sk.anirban@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://lore.kernel.org/r/20250428183555.3250021-1-vinay.belgaumkar@intel.com
Diffstat (limited to 'tools/perf/scripts/python/gecko.py')
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