diff options
| author | Vasant Hegde <vasant.hegde@amd.com> | 2022-07-06 14:38:18 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-07 10:37:50 +0300 |
| commit | a3cf6ab35751ea77a2bd47636dca761e835b282d (patch) | |
| tree | 4efaebbc5daaea3cb1774905e3a44cb7a040cc1c /drivers/iommu/amd | |
| parent | 401360ec98c61bf91a107f292bfbfc9245795eea (diff) | |
| download | linux-a3cf6ab35751ea77a2bd47636dca761e835b282d.tar.xz | |
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/20220706113825.25582-29-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd')
| -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); |