Hi Dave, Daniel,
please pull those etnaviv changes as fixes for the 5.15 release series.
Fixes a very annoying issue where the driver view of the MMU state gets out of sync with the actual hardware state across a runtime PM cycle, so we end up restarting the GPU with the wrong (potentially already freed) MMU context. Hilarity ensues.
Regards, Lucas
The following changes since commit 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f:
Linux 5.15-rc1 (2021-09-12 16:28:37 -0700)
are available in the Git repository at:
https://git.pengutronix.de/git/lst/linux etnaviv/fixes
for you to fetch changes up to f2faea8b64125852fa9acc6771c07fc0311a039b:
drm/etnaviv: add missing MMU context put when reaping MMU mapping (2021-09-16 10:35:37 +0200)
---------------------------------------------------------------- Lucas Stach (8): drm/etnaviv: return context from etnaviv_iommu_context_get drm/etnaviv: put submit prev MMU context when it exists drm/etnaviv: stop abusing mmu_context as FE running marker drm/etnaviv: keep MMU context across runtime suspend/resume drm/etnaviv: exec and MMU state is lost when resetting the GPU drm/etnaviv: fix MMU context leak on GPU reset drm/etnaviv: reference MMU context when setting up hardware state drm/etnaviv: add missing MMU context put when reaping MMU mapping
drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 3 +-- drivers/gpu/drm/etnaviv/etnaviv_gem.c | 3 +-- drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 3 +-- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 43 +++++++++++++++++++++++++------------------ drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 1 + drivers/gpu/drm/etnaviv/etnaviv_iommu.c | 4 ++++ drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c | 8 ++++++++ drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 1 + drivers/gpu/drm/etnaviv/etnaviv_mmu.h | 4 +++- 9 files changed, 45 insertions(+), 25 deletions(-)