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| author | Joerg Roedel <joro@8bytes.org> | 2013-04-18 17:55:04 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-07 12:49:48 -0700 |
| commit | 52462d2f5a520ce96c3ea028d80594375adca04b (patch) | |
| tree | 721e31a4275ab027dd8e821527f995a4e6a9005d /samples | |
| parent | a5d3e60fa23aa401a2f14ed58af32405c9915351 (diff) | |
| download | linux-3.10-52462d2f5a520ce96c3ea028d80594375adca04b.tar.gz linux-3.10-52462d2f5a520ce96c3ea028d80594375adca04b.tar.bz2 linux-3.10-52462d2f5a520ce96c3ea028d80594375adca04b.zip | |
iommu/amd: Workaround for ERBT1312
commit d3263bc29706e42f74d8800807c2dedf320d77f1 upstream.
Work around an IOMMU hardware bug where clearing the
EVT_INT or PPR_INT bit in the status register may race with
the hardware trying to set it again. When not handled the
bit might not be cleared and we lose all future event or ppr
interrupts.
Reported-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions