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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-08-14 19:55:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-15 13:56:46 +0200 |
| commit | 519c31bacf78a969efa8d2e55ed8862848f28590 (patch) | |
| tree | bbeb4cd9f810536beb3bb1c5e6a827fa35a37633 /include/asm-x86 | |
| parent | b635acec48bcaa9183fcbf4e3955616b0d4119b5 (diff) | |
| download | linux-519c31bacf78a969efa8d2e55ed8862848f28590.tar.gz | |
x86, AMD IOMMU: use status bit instead of memory write-back for completion wait
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/amd_iommu_types.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h index 22aa58ca1991..32543229db76 100644 --- a/include/asm-x86/amd_iommu_types.h +++ b/include/asm-x86/amd_iommu_types.h @@ -69,6 +69,9 @@ #define MMIO_EVT_TAIL_OFFSET 0x2018 #define MMIO_STATUS_OFFSET 0x2020 +/* MMIO status bits */ +#define MMIO_STATUS_COM_WAIT_INT_MASK 0x04 + /* feature control bits */ #define CONTROL_IOMMU_EN 0x00ULL #define CONTROL_HT_TUN_EN 0x01ULL @@ -89,6 +92,7 @@ #define CMD_INV_IOMMU_PAGES 0x03 #define CMD_COMPL_WAIT_STORE_MASK 0x01 +#define CMD_COMPL_WAIT_INT_MASK 0x02 #define CMD_INV_IOMMU_PAGES_SIZE_MASK 0x01 #define CMD_INV_IOMMU_PAGES_PDE_MASK 0x02 |