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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-09-09 16:47:35 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-19 12:59:17 +0200 |
| commit | 126c52be4b1d2eb667a1d140f0ceaff9d353f700 (patch) | |
| tree | 8b6bf75d6b6b11be14101cf25a9a94dedf2caa92 /arch/x86/kernel/amd_iommu_init.c | |
| parent | 90008ee4b811c944455752dcb72b291a5ba81b53 (diff) | |
| download | blackbird-op-linux-126c52be4b1d2eb667a1d140f0ceaff9d353f700.tar.gz blackbird-op-linux-126c52be4b1d2eb667a1d140f0ceaff9d353f700.zip | |
AMD IOMMU: enable event logging
The code to log IOMMU events is in place now. So enable event logging
with this patch.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/amd_iommu_init.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu_init.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index eed488892c01..1974b73fece6 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -253,6 +253,13 @@ void __init iommu_enable(struct amd_iommu *iommu) iommu_feature_enable(iommu, CONTROL_IOMMU_EN); } +/* Function to enable IOMMU event logging and event interrupts */ +void __init iommu_enable_event_logging(struct amd_iommu *iommu) +{ + iommu_feature_enable(iommu, CONTROL_EVT_LOG_EN); + iommu_feature_enable(iommu, CONTROL_EVT_INT_EN); +} + /* * mapping and unmapping functions for the IOMMU MMIO space. Each AMD IOMMU in * the system has one. @@ -958,6 +965,7 @@ static void __init enable_iommus(void) list_for_each_entry(iommu, &amd_iommu_list, list) { iommu_set_exclusion_range(iommu); iommu_init_msi(iommu); + iommu_enable_event_logging(iommu); iommu_enable(iommu); } } |
