Messages in this thread | | | From | Jernej Skrabec <> | Subject | [PATCH v2 0/5] iommu/sun50i: Fix various fixes | Date | Tue, 25 Oct 2022 18:54:10 +0200 |
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Testing IOMMU together with video decoder (Cedrus) exposed many bugs in sun50i-iommu driver. This series addresses all issues so video decoder works well with IOMMU.
First two patches address recovery issues in interrupt when either page faults or permission errors were reported. Third patch fixes permission domain assignment. Fourth patch fixes dma sync size. Sometimes sync also touched some other buffers and kernel generated warning in dmesg. Fifth patch fixes issue with syncing PDE and PTE tables. Without it, page faults were randomly generated even with valid iova addresses.
Please take a look.
Best regards, Jernej
Changes from v1: - rebase on top of v6.1-rc1 - replace last patch with new one - Implement iotlb_sync_map instead of invalidating each page at each allocation
Jernej Skrabec (5): iommu/sun50i: Fix reset release iommu/sun50i: Consider all fault sources for reset iommu/sun50i: Fix R/W permission check iommu/sun50i: Fix flush size iommu/sun50i: Implement .iotlb_sync_map
drivers/iommu/sun50i-iommu.c | 88 ++++++++++++++++++++++++++++++++++-- 1 file changed, 83 insertions(+), 5 deletions(-)
-- 2.38.1
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