diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2011-12-22 14:51:53 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2011-12-22 14:56:56 +0100 |
| commit | 1456e9d2c4667a6e9221eda27b9648fb3bcc1e8e (patch) | |
| tree | 6ef0a4f1ba7d25c97babd5a0f2a41db068150281 /drivers/iommu/amd_iommu_types.h | |
| parent | 2655d7a29703f29d4b6b8e4ee1f4d682b3b28f9c (diff) | |
iommu/amd: Set IOTLB invalidation timeout
To protect the command buffer from hanging when a device
does not respond to an IOTLB invalidation, set a timeout of
1s for outstanding IOTLB invalidations.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu/amd_iommu_types.h')
| -rw-r--r-- | drivers/iommu/amd_iommu_types.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h index 6ad8b10b3130..2452f3b71736 100644 --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -127,6 +127,7 @@ #define CONTROL_EVT_LOG_EN 0x02ULL #define CONTROL_EVT_INT_EN 0x03ULL #define CONTROL_COMWAIT_EN 0x04ULL +#define CONTROL_INV_TIMEOUT 0x05ULL #define CONTROL_PASSPW_EN 0x08ULL #define CONTROL_RESPASSPW_EN 0x09ULL #define CONTROL_COHERENT_EN 0x0aULL @@ -137,6 +138,15 @@ #define CONTROL_PPR_EN 0x0fULL #define CONTROL_GT_EN 0x10ULL +#define CTRL_INV_TO_MASK (7 << CONTROL_INV_TIMEOUT) +#define CTRL_INV_TO_NONE 0 +#define CTRL_INV_TO_1MS 1 +#define CTRL_INV_TO_10MS 2 +#define CTRL_INV_TO_100MS 3 +#define CTRL_INV_TO_1S 4 +#define CTRL_INV_TO_10S 5 +#define CTRL_INV_TO_100S 6 + /* command specific defines */ #define CMD_COMPL_WAIT 0x01 #define CMD_INV_DEV_ENTRY 0x02 |