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authorSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>2016-08-23 13:52:35 -0500
committerJoerg Roedel <jroedel@suse.de>2016-09-05 12:41:46 +0200
commit77bdab46f04ffd93140c574f4fbd48ab521fdbe0 (patch)
tree3a863d24c75022cd78480a578d3d00991b8ca4d7 /drivers/iommu/amd_iommu_init.c
parent880ac60e2538337f84d9f76ab7b3c13ee7787804 (diff)
downloadlinux-77bdab46f04ffd93140c574f4fbd48ab521fdbe0.tar.bz2
iommu/amd: Add support for multiple IRTE formats
This patch enables support for the new 128-bit IOMMU IRTE format, which can be used for both legacy and vapic interrupt remapping modes. It replaces the existing operations on IRTE, which can only support the older 32-bit IRTE format, with calls to the new struct amd_irt_ops. It also provides helper functions for setting up, accessing, and updating interrupt remapping table entries in different mode. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu_init.c')
-rw-r--r--drivers/iommu/amd_iommu_init.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index c3afd8669bfb..c17febb823ec 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1893,8 +1893,10 @@ static void iommu_enable_ga(struct amd_iommu *iommu)
/* Fall through */
case AMD_IOMMU_GUEST_IR_LEGACY_GA:
iommu_feature_enable(iommu, CONTROL_GA_EN);
+ iommu->irte_ops = &irte_128_ops;
break;
default:
+ iommu->irte_ops = &irte_32_ops;
break;
}
#endif