diff options
| author | Rob Clark <robdclark@chromium.org> | 2021-09-27 21:00:04 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-10-01 23:10:20 +0300 |
| commit | f6f59072e821901d96c791864a07d57d8ec8d312 (patch) | |
| tree | d3f16548dddb7c5c90be3da9336dda3bb578c20e /drivers/gpu/drm/msm/adreno/a6xx_gmu.h | |
| parent | 654e9c18dfab02c8e5f9c5877c7a2f3264fa520a (diff) | |
| download | linux-f6f59072e821901d96c791864a07d57d8ec8d312.tar.xz | |
drm/msm/a6xx: Serialize GMU communication
I've seen some crashes in our crash reporting that *look* like multiple
threads stomping on each other while communicating with GMU. So wrap
all those paths in a lock.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gmu.h')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h index 3c74f64e3126..84bd516f01e8 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h @@ -44,6 +44,9 @@ struct a6xx_gmu_bo { struct a6xx_gmu { struct device *dev; + /* For serializing communication with the GMU: */ + struct mutex lock; + struct msm_gem_address_space *aspace; void * __iomem mmio; |