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iommu/amd: Implement function to send PPR completions

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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>
This commit is contained in:
Joerg Roedel
2011-11-21 18:19:25 +01:00
parent b16137b11b
commit c99afa25b6
3 changed files with 63 additions and 0 deletions
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6
drivers/iommu/amd_iommu_proto.h
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@@ -47,6 +47,12 @@ extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid,
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