commit | 0199172f933342d8b1011aae2054a695c25726f4 | [log] [tgz] |
---|---|---|
author | Shane Francis <bigbeeshane@gmail.com> | Wed Mar 25 09:07:40 2020 +0000 |
committer | Alex Deucher <alexander.deucher@amd.com> | Wed Mar 25 12:10:40 2020 -0400 |
tree | 1574f9a173adbd5530aa4d29dd16e41099fa21bb | |
parent | 42e67b479eab6d26459b80b4867298232b0435e7 [diff] |
drm/amdgpu: 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/20200325090741.21957-3-bigbeeshane@gmail.com Cc: stable@vger.kernel.org