diff options
| author | Shane Francis <bigbeeshane@gmail.com> | 2020-03-25 09:07:41 +0000 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-03-25 12:10:55 -0400 |
| commit | 47f7826c520ecd92ffbffe59ecaa2fe61e42ec70 (patch) | |
| tree | 09e55a129f34615f900087af729b002773042b6b /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | |
| parent | 0199172f933342d8b1011aae2054a695c25726f4 (diff) | |
drm/radeon: fix scatter-gather mapping with user pages
Calls to dma_map_sg may return less segments / entries than requested
if they fall on page bounderies. The old implementation did not
support this use case.
Fixes: be62dbf554c5 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-4-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
0 files changed, 0 insertions, 0 deletions