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| author | Gary R Hook <gary.hook@amd.com> | 2017-01-27 21:28:45 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-14 23:25:33 (GMT) |
| commit | 1105ccf25118894ffde5b50d43c52b9e39fe3fc9 (patch) | |
| tree | 1248c4d4271408bfae459817a2d4f9d04cd90250 /sound/synth/util_mem.c | |
| parent | d7aa88a14eb059cdc9c82206cd3ee8ccb6f62ee6 (diff) | |
| download | linux-1105ccf25118894ffde5b50d43c52b9e39fe3fc9.tar.xz | |
crypto: ccp - Fix DMA operations when IOMMU is enabled
commit 500c0106e638e08c2c661c305ed57d6b67e10908 upstream.
An I/O page fault occurs when the IOMMU is enabled on a
system that supports the v5 CCP. DMA operations use a
Request ID value that does not match what is expected by
the IOMMU, resulting in the I/O page fault. Setting the
Request ID value to 0 corrects this issue.
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/synth/util_mem.c')
0 files changed, 0 insertions, 0 deletions