diff options
| author | Donet Tom <donettom@linux.ibm.com> | 2026-05-27 18:49:31 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-06-03 14:57:36 -0400 |
| commit | ec4c462e2d8161b32038e21e7187f4a15fe1661d (patch) | |
| tree | 398d55d6e07d93c3143812d94c9b8501df7ae3d7 /include/linux/atmdev.h | |
| parent | 14ad7e1e6e2cd44f866e2dbb3f6a2b2f4a39b96d (diff) | |
drm/amdgpu: Fix incorrect VRAM GART mappings on non-4K page size systems
When mapping VRAM pages into the GART page table,
amdgpu_gart_map_vram_range() assumes that the system page size is the
same as the GPU page size.
On systems with non-4K page sizes, multiple GPU pages can exist within
a single CPU page. As a result, the mappings are created incorrectly
because fewer page table entries are programmed than required.
Fix this by programming the mappings correctly for non-4K page size
systems.
Fixes: 237d623ae659 ("drm/amdgpu/gart: Add helper to bind VRAM pages (v2)")
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Donet Tom <donettom@linux.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit a8f0bc22388f74e0cf4ed8b7d1846c580eaf44cc)
Cc: stable@vger.kernel.org
Diffstat (limited to 'include/linux/atmdev.h')
0 files changed, 0 insertions, 0 deletions