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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
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2022-07-15drm/amdgpu: Fix for drm buddy memory corruptionArunpravin Paneer Selvam1-1/+1
User reported gpu page fault when running graphics applications and in some cases garbaged graphics are observed as soon as X starts. This patch fixes all the issues. Fixed the typecast issue for fpfn and lpfn variables, thus preventing the overflow problem which resolves the memory corruption. Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Reported-by: Mike Lothian <mike@fireburn.co.uk> Tested-by: Mike Lothian <mike@fireburn.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20220714101214.7620-1-Arunpravin.PaneerSelvam@amd.com Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com>
2022-05-11drm/amdgpu: move internal vram_mgr function into the C fileChristian König1-27/+0
No need to have those in the header. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220510113649.879821-2-christian.koenig@amd.com
2022-04-08drm/amdgpu: add drm buddy support to amdgpuArunpravin Paneer Selvam1-0/+89
- Switch to drm buddy allocator - Add resource cursor support for drm buddy v2(Matthew Auld): - replace spinlock with mutex as we call kmem_cache_zalloc (..., GFP_KERNEL) in drm_buddy_alloc() function - lock drm_buddy_block_trim() function as it calls mark_free/mark_split are all globally visible v3(Matthew Auld): - remove trim method error handling as we address the failure case at drm_buddy_block_trim() function v4: - fix warnings reported by kernel test robot <lkp@intel.com> v5: - fix merge conflict issue v6: - fix warnings reported by kernel test robot <lkp@intel.com> v7: - remove DRM_BUDDY_RANGE_ALLOCATION flag usage v8: - keep DRM_BUDDY_RANGE_ALLOCATION flag usage - resolve conflicts created by drm/amdgpu: remove VRAM accounting v2 v9(Christian): - merged the below patch - drm/amdgpu: move vram inline functions into a header - rename label name as fallback - move struct amdgpu_vram_mgr to amdgpu_vram_mgr.h - remove unnecessary flags from struct amdgpu_vram_reservation - rewrite block NULL check condition - change else style as per coding standard - rewrite the node max size - add a helper function to fetch the first entry from the list v10(Christian): - rename amdgpu_get_node() function name as amdgpu_vram_mgr_first_block v11: - if size is not aligned with min_page_size, enable is_contiguous flag, therefore, the size round up to the power of two and trimmed to the original size. v12: - rename the function names having prefix as amdgpu_vram_mgr_*() - modify the round_up() logic conforming to contiguous flag enablement or if size is not aligned to min_block_size - modify the trim logic - rename node as block wherever applicable Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220407224843.2416-1-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>