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| author | Vasant Hegde <vasant.hegde@amd.com> | 2022-07-06 17:08:25 +0530 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-07 09:37:54 +0200 |
| commit | 214a05c1c2314b92c9a2e5c594b8646930d788e4 (patch) | |
| tree | 1a9f4d0f29ab8114b06edb030b2723f225d84450 /drivers/iommu | |
| parent | 196dff712ea2c86f4957ad1a99bc7d65d4b01c5d (diff) | |
| download | linux-214a05c1c2314b92c9a2e5c594b8646930d788e4.tar.bz2 | |
iommu/amd: Update amd_iommu_fault structure to include PCI seg ID
Rename 'device_id' as 'sbdf' and extend it to 32bit so that we can
pass PCI segment ID to ppr_notifier(). Also pass PCI segment ID to
pci_get_domain_bus_and_slot() instead of default value.
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-36-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu_types.h | 2 | ||||
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 2 | ||||
| -rw-r--r-- | drivers/iommu/amd/iommu_v2.c | 9 |
3 files changed, 7 insertions, 6 deletions
diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h index 1ca54803702a..40f52d02c5b9 100644 --- a/drivers/iommu/amd/amd_iommu_types.h +++ b/drivers/iommu/amd/amd_iommu_types.h @@ -486,7 +486,7 @@ extern struct kmem_cache *amd_iommu_irq_cache; struct amd_iommu_fault { u64 address; /* IO virtual address of the fault*/ u32 pasid; /* Address space identifier */ - u16 device_id; /* Originating PCI device id */ + u32 sbdf; /* Originating PCI device id */ u16 tag; /* PPR tag */ u16 flags; /* Fault flags */ diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 6a1db8f9f453..a56a9ad3273e 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -701,7 +701,7 @@ static void iommu_handle_ppr_entry(struct amd_iommu *iommu, u64 *raw) fault.address = raw[1]; fault.pasid = PPR_PASID(raw[0]); - fault.device_id = PPR_DEVID(raw[0]); + fault.sbdf = PCI_SEG_DEVID_TO_SBDF(iommu->pci_seg->id, PPR_DEVID(raw[0])); fault.tag = PPR_TAG(raw[0]); fault.flags = PPR_FLAGS(raw[0]); diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c index 40484af2ffc2..696d5555be57 100644 --- a/drivers/iommu/amd/iommu_v2.c +++ b/drivers/iommu/amd/iommu_v2.c @@ -518,15 +518,16 @@ static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data) unsigned long flags; struct fault *fault; bool finish; - u16 tag, devid; + u16 tag, devid, seg_id; int ret; iommu_fault = data; tag = iommu_fault->tag & 0x1ff; finish = (iommu_fault->tag >> 9) & 1; - devid = iommu_fault->device_id; - pdev = pci_get_domain_bus_and_slot(0, PCI_BUS_NUM(devid), + seg_id = PCI_SBDF_TO_SEGID(iommu_fault->sbdf); + devid = PCI_SBDF_TO_DEVID(iommu_fault->sbdf); + pdev = pci_get_domain_bus_and_slot(seg_id, PCI_BUS_NUM(devid), devid & 0xff); if (!pdev) return -ENODEV; @@ -540,7 +541,7 @@ static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data) goto out; } - dev_state = get_device_state(iommu_fault->device_id); + dev_state = get_device_state(iommu_fault->sbdf); if (dev_state == NULL) goto out; |