diff options
| author | John Olender <john.olender@gmail.com> | 2025-04-29 07:24:28 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 11:01:45 +0200 |
| commit | e2c3133ff4d594f68d3bae82b2637e96b509e063 (patch) | |
| tree | a6ce3d105682e5f430aeb93a05799f30226af761 | |
| parent | 4ce9f2dc9ff7cc410e8c5d936ec551e26b9599a9 (diff) | |
drm/amdgpu: amdgpu_vram_mgr_new(): Clamp lpfn to total vram
commit 4d2f6b4e4c7ed32e7fa39fcea37344a9eab99094 upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 ff5e52025266..8f58ec6f1400 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; |