diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-10-15 12:58:56 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-10-15 15:10:06 +0100 |
| commit | 9d3eb2c33f03432a25a6a3ab3177f839f25cbaf5 (patch) | |
| tree | 93d1effccf9058d5aa091fbe8c890b0938dedd85 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 668b6c176c33f443a50afd981cc9c0939e411b3b (diff) | |
drm/i915: Hold rpm wakeref for debugfs/i915_drop_caches_set
Since we peek into HW state and poke around, it behoves us to acquire a
runtime pm wakeref beforehand.
References: https://bugs.freedesktop.org/show_bug.cgi?id=108343
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108364
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181015115856.18590-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 7b7f844d325b..5f3c639522fa 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -4187,6 +4187,7 @@ i915_drop_caches_set(void *data, u64 val) DRM_DEBUG("Dropping caches: 0x%08llx [0x%08llx]\n", val, val & DROP_ALL); + intel_runtime_pm_get(i915); if (val & DROP_RESET_ACTIVE && !intel_engines_are_idle(i915)) i915_gem_set_wedged(i915); @@ -4204,11 +4205,8 @@ i915_drop_caches_set(void *data, u64 val) I915_WAIT_LOCKED, MAX_SCHEDULE_TIMEOUT); - if (ret == 0 && val & DROP_RESET_SEQNO) { - intel_runtime_pm_get(i915); + if (ret == 0 && val & DROP_RESET_SEQNO) ret = i915_gem_set_global_seqno(&i915->drm, 1); - intel_runtime_pm_put(i915); - } if (val & DROP_RETIRE) i915_retire_requests(i915); @@ -4246,6 +4244,8 @@ i915_drop_caches_set(void *data, u64 val) if (val & DROP_FREED) i915_gem_drain_freed_objects(i915); + intel_runtime_pm_put(i915); + return ret; } |