iommu/amd: Implement function to send PPR completions
To send completions for PPR requests this patch adds a
function which can be used by the IOMMUv2 driver.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/drivers/iommu/amd_iommu_proto.h b/drivers/iommu/amd_iommu_proto.h
index a951a70..bb5ecfe 100644
--- a/drivers/iommu/amd_iommu_proto.h
+++ b/drivers/iommu/amd_iommu_proto.h
@@ -47,6 +47,12 @@
unsigned long cr3);
extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid);
+#define PPR_SUCCESS 0x0
+#define PPR_INVALID 0x1
+#define PPR_FAILURE 0xf
+
+extern int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid,
+ int status, int tag);
#ifndef CONFIG_AMD_IOMMU_STATS