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| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2013-03-27 18:51:52 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-07 12:49:35 -0700 |
| commit | a5d3e60fa23aa401a2f14ed58af32405c9915351 (patch) | |
| tree | df6244c5f03257f21ea5f8e6eb28139cc5aca123 /arch/frv | |
| parent | baff3c88fd65974bc8d11bd7bab0d60bbe0325a6 (diff) | |
| download | linux-3.10-a5d3e60fa23aa401a2f14ed58af32405c9915351.tar.gz linux-3.10-a5d3e60fa23aa401a2f14ed58af32405c9915351.tar.bz2 linux-3.10-a5d3e60fa23aa401a2f14ed58af32405c9915351.zip | |
iommu/amd: Re-enable IOMMU event log interrupt after handling.
commit 925fe08bce38d1ff052fe2209b9e2b8d5fbb7f98 upstream.
Current driver does not clear the IOMMU event log interrupt bit
in the IOMMU status register after processing an interrupt.
This causes the IOMMU hardware to generate event log interrupt only once.
This has been observed in both IOMMU v1 and V2 hardware.
This patch clears the bit by writing 1 to bit 1 of the IOMMU
status register (MMIO Offset 2020h)
Signed-off-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 'arch/frv')
0 files changed, 0 insertions, 0 deletions