Commit 4d2f6b4e authored by John Olender's avatar John Olender Committed by Alex Deucher
Browse files

drm/amdgpu: amdgpu_vram_mgr_new(): Clamp lpfn to total vram 

The drm_mm allocator tolerated being passed end > mm->size, but the
drm_buddy allocator does not.

Restore the pre-buddy-allocator behavior of allowing such placements.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3448


Signed-off-by: default avatarJohn Olender <john.olender@gmail.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarArunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent bf394d28

drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c

+1 −1
Original line number Diff line number Diff line
@@ -463,7 +463,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, 
	int r;



	lpfn = (u64)place->lpfn << PAGE_SHIFT;

	if (!lpfn)

	if (!lpfn || lpfn > man->size)

		lpfn = man->size;



	fpfn = (u64)place->fpfn << PAGE_SHIFT;