diff options
| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2022-07-06 14:38:11 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-07 10:37:46 +0300 |
| commit | 54625ef1db1ce7e57f356d8f355095a4fbb71efb (patch) | |
| tree | 910284c43e98d4693fbdcfd5ad3df8a16ff1a2da /drivers/iommu | |
| parent | ccacd94fdacabe77f5a887c3b75334982b1ce9ca (diff) | |
| download | linux-54625ef1db1ce7e57f356d8f355095a4fbb71efb.tar.xz | |
iommu/amd: Update set_dte_entry and clear_dte_entry
Start using per PCI segment data structures instead of global data
structures.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-22-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 6e0cd9c4f57c..493cda5e0246 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1537,6 +1537,7 @@ static void set_dte_entry(struct amd_iommu *iommu, u16 devid, u64 pte_root = 0; u64 flags = 0; u32 old_domid; + struct dev_table_entry *dev_table = get_dev_table(iommu); if (domain->iop.mode != PAGE_MODE_NONE) pte_root = iommu_virt_to_phys(domain->iop.root); @@ -1545,7 +1546,7 @@ static void set_dte_entry(struct amd_iommu *iommu, u16 devid, << DEV_ENTRY_MODE_SHIFT; pte_root |= DTE_FLAG_IR | DTE_FLAG_IW | DTE_FLAG_V | DTE_FLAG_TV; - flags = amd_iommu_dev_table[devid].data[1]; + flags = dev_table[devid].data[1]; if (ats) flags |= DTE_FLAG_IOTLB; @@ -1584,9 +1585,9 @@ static void set_dte_entry(struct amd_iommu *iommu, u16 devid, flags &= ~DEV_DOMID_MASK; flags |= domain->id; - old_domid = amd_iommu_dev_table[devid].data[1] & DEV_DOMID_MASK; - amd_iommu_dev_table[devid].data[1] = flags; - amd_iommu_dev_table[devid].data[0] = pte_root; + old_domid = dev_table[devid].data[1] & DEV_DOMID_MASK; + dev_table[devid].data[1] = flags; + dev_table[devid].data[0] = pte_root; /* * A kdump kernel might be replacing a domain ID that was copied from @@ -1598,11 +1599,13 @@ static void set_dte_entry(struct amd_iommu *iommu, u16 devid, } } -static void clear_dte_entry(u16 devid) +static void clear_dte_entry(struct amd_iommu *iommu, u16 devid) { + struct dev_table_entry *dev_table = get_dev_table(iommu); + /* remove entry from the device table seen by the hardware */ - amd_iommu_dev_table[devid].data[0] = DTE_FLAG_V | DTE_FLAG_TV; - amd_iommu_dev_table[devid].data[1] &= DTE_FLAG_MASK; + dev_table[devid].data[0] = DTE_FLAG_V | DTE_FLAG_TV; + dev_table[devid].data[1] &= DTE_FLAG_MASK; amd_iommu_apply_erratum_63(devid); } @@ -1646,7 +1649,7 @@ static void do_detach(struct iommu_dev_data *dev_data) /* Update data structures */ dev_data->domain = NULL; list_del(&dev_data->list); - clear_dte_entry(dev_data->devid); + clear_dte_entry(iommu, dev_data->devid); clone_aliases(iommu, dev_data->dev); /* Flush the DTE entry */ |