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authorJason Gunthorpe <jgg@nvidia.com>2023-09-27 20:47:31 -0300
committerJoerg Roedel <jroedel@suse.de>2023-10-26 16:53:49 +0200
commite5d8be7406ca7b6b251c09b786f08176337c0999 (patch)
tree73acab72252b870486421294d2d8f00e5ca4be96 /include/linux/iommu.h
parent058b4d9de86b3f77cd23fbd43a0f5ee4ea8e0aeb (diff)
iommu: Move IOMMU_DOMAIN_BLOCKED global statics to ops->blocked_domain
Following the pattern of identity domains, just assign the BLOCKED domain global statics to a value in ops. Update the core code to use the global static directly. Update powerpc to use the new scheme and remove its empty domain_alloc callback. Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Acked-by: Sven Peter <sven@svenpeter.dev> Link: https://lore.kernel.org/r/1-v2-bff223cf6409+282-dart_paging_jgg@nvidia.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index c28178f3690a..73daa4fb168b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -265,6 +265,8 @@ struct iommu_iotlb_gather {
* @owner: Driver module providing these ops
* @identity_domain: An always available, always attachable identity
* translation.
+ * @blocked_domain: An always available, always attachable blocking
+ * translation.
* @default_domain: If not NULL this will always be set as the default domain.
* This should be an IDENTITY/BLOCKED/PLATFORM domain.
* Do not use in new drivers.
@@ -303,6 +305,7 @@ struct iommu_ops {
unsigned long pgsize_bitmap;
struct module *owner;
struct iommu_domain *identity_domain;
+ struct iommu_domain *blocked_domain;
struct iommu_domain *default_domain;
};