drm/msm: Separate locking of buffer resources from struct_mutex
Buffer object specific resources like pages, domains, sg list need not be protected with struct_mutex. They can be protected with a buffer object level lock. This simplifies locking and makes it easier to avoid potential recursive locking scenarios for SVM involving mmap_sem and struct_mutex. This also removes unnecessary serialization when creating buffer objects, and also between buffer object creation and GPU command submission. Signed-off-by:Sushmita Susheelendra <ssusheel@codeaurora.org> [robclark: squash in handling new locking for shrinker] Signed-off-by:
Rob Clark <robdclark@gmail.com>
Showing
This diff is collapsed.
Please register or sign in to comment