[PATCH v3 0/2] drm: Fix dma_resv deadlock at drm object pin time

Adrián Larumbe
2024-05-01T06:56:59Z

This is v3 of https://lore.kernel.org/dri-devel/20240424090429.57de7d1c@collabora.com/

The goal of this patch series is fixing a deadlock upon locking the dma reservation
of a DRM gem object when pinning it, at a prime import operation.

Changes from v2:
- Removed comment explaining reason why an already-locked
pin function replaced the locked variant inside Panfrost's
object pin callback.
- Moved already-assigned attachment warning into generic
already-locked gem object pin function

Adrián Larumbe (2):
drm/panfrost: Fix dma_resv deadlock at drm object pin time
drm/gem-shmem: Add import attachment warning to locked pin function

drivers/gpu/drm/drm_gem_shmem_helper.c | 2 ++
drivers/gpu/drm/lima/lima_gem.c | 2 +-
drivers/gpu/drm/panfrost/panfrost_gem.c | 2 +-
3 files changed, 4 insertions(+), 2 deletions(-)

base-commit: 75b68f22e39aafb22f3d8e3071e1aba73560788c
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2.44.0