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iommu: Remove IOMMU_CAP_INTR_REMAP

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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>
This commit is contained in:
Jason Gunthorpe 2022-11-28 20:34:32 -04:00
parent bf210f7939
commit b062007c63
2 changed files with 2 additions and 5 deletions
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6
drivers/iommu/iommu.c
View file

@ -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;
}

1
include/linux/iommu.h
View file

@ -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 */