iommu/amd: Update logging information for new event type

A new events have been defined in the AMD IOMMU spec:

0x09 - "invalid PPR request"

Add support for logging this type of event.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
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Signed-off-by: Joerg Roedel <jroedel@suse.de>

2 files changed, 10 insertions, 1 deletions

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index aecc49aa6fdb..5fef2466da15 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -545,7 +545,7 @@ static void amd_iommu_report_page_fault(u16 devid, u16 domain_id,
 static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
 {
         struct device *dev = iommu->iommu.dev;
-        int type, devid, pasid, flags;
+        int type, devid, pasid, flags, tag;
         volatile u32 *event = __evt;
         int count = 0;
         u64 address;
@@ -610,6 +610,14 @@ retry:
                         PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
                         pasid, address, flags);
                 break;
+        case EVENT_TYPE_INV_PPR_REQ:
+                pasid = ((event[0] >> 16) & 0xFFFF)
+                        | ((event[1] << 6) & 0xF0000);
+                tag = event[1] & 0x03FF;
+                dev_err(dev, "INVALID_PPR_REQUEST device=%02x:%02x.%x pasid=0x%05x address=0x%016llx flags=0x%04x]\n",
+                        PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+                        pasid, address, flags);
+                break;
         default:
                 dev_err(dev, "UNKNOWN event[0]=0x%08x event[1]=0x%08x event[2]=0x%08x event[3]=0x%08x\n",
                         event[0], event[1], event[2], event[3]);
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 1c9b080276c9..986cbe0cc189 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -133,6 +133,7 @@
 #define EVENT_TYPE_CMD_HARD_ERR 0x6
 #define EVENT_TYPE_IOTLB_INV_TO 0x7
 #define EVENT_TYPE_INV_DEV_REQ  0x8
+#define EVENT_TYPE_INV_PPR_REQ  0x9
 #define EVENT_DEVID_MASK        0xffff
 #define EVENT_DEVID_SHIFT       0
 #define EVENT_DOMID_MASK        0xffff