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| author | Andrzej Hajda <andrzej.hajda@intel.com> | 2023-10-30 20:40:13 +0300 |
|---|---|---|
| committer | Andrzej Hajda <andrzej.hajda@intel.com> | 2023-11-20 14:36:56 +0300 |
| commit | 5e4e06e4087eb91b0e5405ed42e792415d055e45 (patch) | |
| tree | 26b8153313c3005c4802972cad61f5817cf27a3a /drivers/gpu/drm/i915/Kconfig.debug | |
| parent | b49e894c3fd83f67aae2a4778b98ea3838e41020 (diff) | |
| download | linux-5e4e06e4087eb91b0e5405ed42e792415d055e45.tar.xz | |
drm/i915: Track gt pm wakerefs
Track every intel_gt_pm_get() until its corresponding release in
intel_gt_pm_put() by returning a cookie to the caller for acquire that
must be passed by on released. When there is an imbalance, we can see who
either tried to free a stale wakeref, or who forgot to free theirs.
v2: track recently added calls in gen8_ggtt_bind_get_ce and
destroyed_worker_func
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231030-ref_tracker_i915-v1-2-006fe6b96421@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/Kconfig.debug')
| -rw-r--r-- | drivers/gpu/drm/i915/Kconfig.debug | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig.debug b/drivers/gpu/drm/i915/Kconfig.debug index 8d82d7a1a9c5..5b7162076850 100644 --- a/drivers/gpu/drm/i915/Kconfig.debug +++ b/drivers/gpu/drm/i915/Kconfig.debug @@ -40,6 +40,7 @@ config DRM_I915_DEBUG select DRM_I915_DEBUG_GEM_ONCE select DRM_I915_DEBUG_MMIO select DRM_I915_DEBUG_RUNTIME_PM + select DRM_I915_DEBUG_WAKEREF select DRM_I915_SW_FENCE_DEBUG_OBJECTS select DRM_I915_SELFTEST default n @@ -244,3 +245,16 @@ config DRM_I915_DEBUG_RUNTIME_PM Recommended for driver developers only. If in doubt, say "N" + +config DRM_I915_DEBUG_WAKEREF + bool "Enable extra tracking for wakerefs" + depends on DRM_I915 + select REF_TRACKER + select STACKDEPOT + select STACKTRACE + help + Choose this option to turn on extra state checking and usage + tracking for the wakerefPM functionality. This may introduce + overhead during driver runtime. + + If in doubt, say "N" |