diff options
| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2022-07-14 01:56:44 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-15 11:41:02 +0300 |
| commit | 1e98a35da49ee7d5b0d101518da51a109a02f238 (patch) | |
| tree | f8060c57a1c8a41bf5808382a515bce049bb5657 /drivers/iommu/amd/amd_iommu_types.h | |
| parent | 60b51e3e333b9986721d77a465c41577c226eb3b (diff) | |
| download | linux-1e98a35da49ee7d5b0d101518da51a109a02f238.tar.xz | |
iommu/amd: Introduce Support for Extended Feature 2 Register
AMD IOMMU spec introduces additional extended feature register
in the IVRS IVHD offset 80h (for IVHD type 11h and 40h) and MMIO
offset 1A0h.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20220713225651.20758-3-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/amd_iommu_types.h')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu_types.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h index 7c830e3c7a91..3c1205ba636a 100644 --- a/drivers/iommu/amd/amd_iommu_types.h +++ b/drivers/iommu/amd/amd_iommu_types.h @@ -67,6 +67,7 @@ #define MMIO_INTCAPXT_EVT_OFFSET 0x0170 #define MMIO_INTCAPXT_PPR_OFFSET 0x0178 #define MMIO_INTCAPXT_GALOG_OFFSET 0x0180 +#define MMIO_EXT_FEATURES2 0x01A0 #define MMIO_CMD_HEAD_OFFSET 0x2000 #define MMIO_CMD_TAIL_OFFSET 0x2008 #define MMIO_EVT_HEAD_OFFSET 0x2010 @@ -645,6 +646,9 @@ struct amd_iommu { /* Extended features */ u64 features; + /* Extended features 2 */ + u64 features2; + /* IOMMUv2 */ bool is_iommu_v2; |