The T820, G31 & G52 GPUs integrated by Amlogic in the respective GXM, G12A/SM1 & G12B SoCs needs a quirk in the PWR registers at the GPU reset time.
The coherency integration of the IOMMU in the Mali-G52 found in the Amlogic G12B SoCs is broken and leads to constant and random faults from the IOMMU.
This serie adds the necessary quirks for the Amlogic integrated GPUs only.
Neil Armstrong (5): iommu/io-pgtable-arm: Add BROKEN_NS quirk to disable shareability on ARM LPAE drm/panfrost: add support specifying pgtbl quirks drm/panfrost: add support for reset quirk drm/panfrost: add amlogic reset quirk callback drm/panfrost: add Amlogic GPU integration quirks
drivers/gpu/drm/panfrost/panfrost_device.h | 6 ++++++ drivers/gpu/drm/panfrost/panfrost_drv.c | 18 ++++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_gpu.c | 17 +++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_gpu.h | 2 ++ drivers/gpu/drm/panfrost/panfrost_mmu.c | 1 + drivers/gpu/drm/panfrost/panfrost_regs.h | 3 +++ drivers/iommu/io-pgtable-arm.c | 7 ++++--- include/linux/io-pgtable.h | 4 ++++ 8 files changed, 55 insertions(+), 3 deletions(-)