diff options
| author | Vasant Hegde via iommu <iommu@lists.linux-foundation.org> | 2022-05-11 12:51:34 +0530 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-06-23 09:49:24 +0200 |
| commit | 58e5ca96cb16b3b6ed6ea5d29bfa2fc42de0b5de (patch) | |
| tree | 50c8e3c4d000c098359763b197a4a2fca2569dd5 /drivers/iommu | |
| parent | 4a5b5b10c67b55e2cafa8caf84c1c98d3cf9ef06 (diff) | |
| download | linux-next-58e5ca96cb16b3b6ed6ea5d29bfa2fc42de0b5de.tar.gz | |
iommu/amd: Flush upto last_bdf only
Fix amd_iommu_flush_dte_all() and amd_iommu_flush_tlb_all() to flush
upto last_bdf only.
Co-developed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220511072141.15485-29-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 | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 94ebffe15960..6914911d4fb6 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1191,8 +1191,9 @@ static int iommu_flush_dte(struct amd_iommu *iommu, u16 devid) static void amd_iommu_flush_dte_all(struct amd_iommu *iommu) { u32 devid; + u16 last_bdf = iommu->pci_seg->last_bdf; - for (devid = 0; devid <= 0xffff; ++devid) + for (devid = 0; devid <= last_bdf; ++devid) iommu_flush_dte(iommu, devid); iommu_completion_wait(iommu); @@ -1205,8 +1206,9 @@ static void amd_iommu_flush_dte_all(struct amd_iommu *iommu) static void amd_iommu_flush_tlb_all(struct amd_iommu *iommu) { u32 dom_id; + u16 last_bdf = iommu->pci_seg->last_bdf; - for (dom_id = 0; dom_id <= 0xffff; ++dom_id) { + for (dom_id = 0; dom_id <= last_bdf; ++dom_id) { struct iommu_cmd cmd; build_inv_iommu_pages(&cmd, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, dom_id, 1); @@ -1249,8 +1251,9 @@ static void iommu_flush_irt(struct amd_iommu *iommu, u16 devid) static void amd_iommu_flush_irt_all(struct amd_iommu *iommu) { u32 devid; + u16 last_bdf = iommu->pci_seg->last_bdf; - for (devid = 0; devid <= MAX_DEV_TABLE_ENTRIES; devid++) + for (devid = 0; devid <= last_bdf; devid++) iommu_flush_irt(iommu, devid); iommu_completion_wait(iommu); |