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authorJason Gunthorpe <jgg@nvidia.com>2022-11-28 20:34:32 -0400
committerJason Gunthorpe <jgg@nvidia.com>2023-01-11 16:27:39 -0400
commitb062007c63eb4452f1122384e86d402531fb1d52 (patch)
treedb46969d11afe94250112f72f178d6dae3bfccaa
parentbf210f793937a634bae6eda6a6d699c00b2b53d9 (diff)
downloadlinux-b062007c63eb4452f1122384e86d402531fb1d52.tar.gz
iommu: Remove IOMMU_CAP_INTR_REMAP
No iommu driver implements this any more, get rid of it. Link: https://lore.kernel.org/r/9-v3-3313bb5dd3a3+10f11-secure_msi_jgg@nvidia.com Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
-rw-r--r--drivers/iommu/iommu.c6
-rw-r--r--include/linux/iommu.h1
2 files changed, 2 insertions, 5 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 4c2199a493d8..834e6ecf3e51 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1914,10 +1914,8 @@ bool iommu_group_has_isolated_msi(struct iommu_group *group)
bool ret = true;
mutex_lock(&group->mutex);
- list_for_each_entry(group_dev, &group->devices, list) {
- ret &= msi_device_has_isolated_msi(group_dev->dev) ||
- device_iommu_capable(group_dev->dev, IOMMU_CAP_INTR_REMAP);
- }
+ list_for_each_entry(group_dev, &group->devices, list)
+ ret &= msi_device_has_isolated_msi(group_dev->dev);
mutex_unlock(&group->mutex);
return ret;
}
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 9b7a9fa5ad28..933cc57bfc48 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -120,7 +120,6 @@ static inline bool iommu_is_dma_domain(struct iommu_domain *domain)
enum iommu_cap {
IOMMU_CAP_CACHE_COHERENCY, /* IOMMU_CACHE is supported */
- IOMMU_CAP_INTR_REMAP, /* IOMMU supports interrupt isolation */
IOMMU_CAP_NOEXEC, /* IOMMU_NOEXEC flag */
IOMMU_CAP_PRE_BOOT_PROTECTION, /* Firmware says it used the IOMMU for
DMA protection and we should too */