diff options
| author | John Olender <john.olender@gmail.com> | 2025-04-29 07:24:28 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-05-29 10:56:23 -0400 |
| commit | 4d2f6b4e4c7ed32e7fa39fcea37344a9eab99094 (patch) | |
| tree | 7015656769f2d968e503b6d01a4d3698f9bde674 | |
| parent | bf394d28548c3c0a01e113fdef20ddb6cd2df106 (diff) | |
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: John Olender <john.olender@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 2d7f82e98df9..abdc52b0895a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -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; |