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authorEric Auger <eric.auger@redhat.com>2017-01-19 23:57:49 +0300
committerWill Deacon <will.deacon@arm.com>2017-01-23 14:48:16 +0300
commit2b20cbba3390a55c511acba2f0f517dd27a528b2 (patch)
treef88d74a181db5f6d0b7c801c51ab18db26ab16ed /include/linux/iommu.h
parentd30ddcaa7b028049cdfee3a40248002d07b2bbf3 (diff)
downloadlinux-2b20cbba3390a55c511acba2f0f517dd27a528b2.tar.xz
iommu: iommu_alloc_resv_region
Introduce a new helper serving the purpose to allocate a reserved region. This will be used in iommu driver implementing reserved region callbacks. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com> Tested-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com> Tested-by: Bharat Bhushan <bharat.bhushan@nxp.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 233a6bf093bf..f6bb55d3e606 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -244,6 +244,8 @@ extern void iommu_set_fault_handler(struct iommu_domain *domain,
extern void iommu_get_resv_regions(struct device *dev, struct list_head *list);
extern void iommu_put_resv_regions(struct device *dev, struct list_head *list);
extern int iommu_request_dm_for_dev(struct device *dev);
+extern struct iommu_resv_region *
+iommu_alloc_resv_region(phys_addr_t start, size_t length, int prot, int type);
extern int iommu_attach_group(struct iommu_domain *domain,
struct iommu_group *group);