This patch set is to fix a bug in amdgpu / radeon drm that results in a crash when dma_map_sg combines segments. There are 2 shortfalls in the current kernel. 1) AMDGPU / RADEON assumes that the requested and created segments from dma_map_sg are equal 2) drm_prime does not allow for setting the segment length via the correct dma macro Shane Francis (3): drm/prime: correct logic for mapping sg to arrays drm/amdgpu: fix scatter-gather mapping with user pages drm/radeon: fix scatter-gather mapping with user pages drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 +-- drivers/gpu/drm/drm_prime.c | 71 +++++++++++++++++++++---- drivers/gpu/drm/radeon/radeon_ttm.c | 7 +-- include/drm/drm_prime.h | 5 ++ 4 files changed, 75 insertions(+), 15 deletions(-) -- 2.26.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
