Searched hist:"743 c97ca9dc989b0b08ca1fbfd134a83b37fe9ec" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/gpu/drm/msm/ |
| H A D | msm_kms.h | diff 743c97ca9dc989b0b08ca1fbfd134a83b37fe9ec Thu Feb 11 16:40:58 CST 2021 Stephen Boyd <swboyd@chromium.org> drm/msm/kms: Use nested locking for crtc lock instead of custom classes
We don't need to make up custom lock classes here, we can simply use
mutex_lock_nested() and pass in the index of the crtc to the locking
APIs instead. This helps lockdep understand that these are really
different locks while avoiding having to allocate custom lockdep
classes.
Cc: Krishna Manikandan <mkrishn@codeaurora.org>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Fixes: b3d91800d9ac ("drm/msm: Fix race condition in msm driver with async layer updates")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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| H A D | msm_atomic.c | diff 743c97ca9dc989b0b08ca1fbfd134a83b37fe9ec Thu Feb 11 16:40:58 CST 2021 Stephen Boyd <swboyd@chromium.org> drm/msm/kms: Use nested locking for crtc lock instead of custom classes
We don't need to make up custom lock classes here, we can simply use
mutex_lock_nested() and pass in the index of the crtc to the locking
APIs instead. This helps lockdep understand that these are really
different locks while avoiding having to allocate custom lockdep
classes.
Cc: Krishna Manikandan <mkrishn@codeaurora.org>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Fixes: b3d91800d9ac ("drm/msm: Fix race condition in msm driver with async layer updates")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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