kernel.git/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h, branch linux-6.14.y

drm/amdgpu: Enable clear page functionality

2024-04-22T17:44:16Z

Add clear page support in vram memory region. v1(Christian): - Dont handle clear page as TTM flag since when moving the BO back in from GTT again we don't need that. - Make a specialized version of amdgpu_fill_buffer() which only clears the VRAM areas which are not already cleared - Drop the TTM_PL_FLAG_WIPE_ON_RELEASE check in amdgpu_object.c v2: - Modify the function name amdgpu_ttm_* (Alex) - Drop the delayed parameter (Christian) - handle amdgpu_res_cleared(&cursor) just above the size calculation (Christian) - Use AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE for clearing the buffers in the free path to properly wait for fences etc.. (Christian) v3(Christian): - Remove buffer clear code in VRAM manager instead change the AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE handling to set the DRM_BUDDY_CLEARED flag. - Remove ! from amdgpu_res_cleared(&cursor) check. v4(Christian): - vres flag setting move to vram manager file - use dma_fence_get_stub in amdgpu_ttm_clear_buffer function - make fence a mandatory parameter and drop the if and the get/put dance Signed-off-by: Arunpravin Paneer Selvam Suggested-by: Christian König Acked-by: Felix Kuehling Link: https://patchwork.freedesktop.org/patch/msgid/20240419063538.11957-2-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König

drm/amdgpu: Fix for drm buddy memory corruption

2022-07-15T13:41:51Z

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 Reported-by: Mike Lothian Tested-by: Mike Lothian Link: https://patchwork.freedesktop.org/patch/msgid/20220714101214.7620-1-Arunpravin.PaneerSelvam@amd.com Reviewed-by: Christian König Signed-off-by: Christian König

drm/amdgpu: move internal vram_mgr function into the C file

2022-05-11T08:02:32Z

No need to have those in the header. Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/20220510113649.879821-2-christian.koenig@amd.com

drm/amdgpu: add drm buddy support to amdgpu

2022-04-08T10:58:15Z

- 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 v5: - fix merge conflict issue v6: - fix warnings reported by kernel test robot 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 Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20220407224843.2416-1-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König