diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2022-07-11 09:58:59 +0100 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-07-11 16:35:37 +0100 |
| commit | bc99f1209f19fefa3ee11e77464ccfae541f4291 (patch) | |
| tree | 8b51fff7ee7377908cb8efda769d4d0381a0111f /drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | |
| parent | d50f5a109cf4ed50c5b575c1bb5fc3bd17b23308 (diff) | |
drm/i915/ttm: fix sg_table construction
If we encounter some monster sized local-memory page that exceeds the
maximum sg length (UINT32_MAX), ensure that don't end up with some
misaligned address in the entry that follows, leading to fireworks
later. Also ensure we have some coverage of this in the selftests.
v2(Chris):
- Use round_down consistently to avoid udiv errors
v3(Nirmoy):
- Also update the max_segment in the selftest
Fixes: f701b16d4cc5 ("drm/i915/ttm: add i915_sg_from_buddy_resource")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6379
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220711085859.24198-1-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c')
0 files changed, 0 insertions, 0 deletions