[PATCH v5 7/9] dmaengine: rcar-dmac: add iommu support for slave transfers

Enable slave transfers to a device behind a IPMMU by mapping the slave addresses using the dma-mapping API. Signed-off-by: Niklas Söderlund --- drivers/dma/sh/rcar-dmac.c | 82 +- 1 file changed, 74

[PATCH v5 9/9] ARM: dts: r8a7791: add iommus to dmac0 and dmac1

A unconfirmed hardware bug prevents channel 0 and 15 to be used by the DMAC together with the IPMMU. The DMAC driver will disable the channels reducing the effective number of channels to 14 per DMAC. Signed-off-by: Niklas Söderlund Acked-by: Laurent

[PATCH v5 6/9] dmaengine: rcar-dmac: group slave configuration

Group slave address and transfer size in own structs for source and destination. This is in preparation for hooking up the dma-mapping API to the slave addresses. Signed-off-by: Niklas Söderlund --- drivers/dma/sh/rcar-dmac.c | 38

[PATCH v5 0/9] dmaengine: rcar-dmac: add iommu support for slave transfers

Hi, This series add iommu support to rcar-dmac. It's tested on Koelsch with CONFIG_IPMMU_VMSA and by enabling the ipmmu_ds node in r8a7791.dtsi. I verified operation by interacting with /dev/mmcblk1 and the serial console which both are devices behind the iommu. The series depends patch '[PATCH]

[PATCH v5 5/9] dmaengine: rcar-dmac: slave address are physical

Slave addresses coming from a client is physical not dma. Store the address using the correct data type. This is in preparation for hooking up the dma-mapping API to the slave addresses. Signed-off-by: Niklas Söderlund --- drivers/dma/sh/rcar-dmac.c | 4

[PATCH v5 4/9] arm: dma-mapping: add {map, unmap}_resource for iommu ops

Add methods to map/unmap device resources addresses for dma_map_ops that are IOMMU aware. This is needed to map a device MMIO register from a physical address. Signed-off-by: Niklas Söderlund Reviewed-by: Laurent Pinchart

[PATCH v5 1/9] iommu: Add MMIO mapping type

From: Robin Murphy On some platforms, MMIO regions might need slightly different treatment compared to mapping regular memory; add the notion of MMIO mappings to the IOMMU API's memory type flags, so that callers can let the IOMMU drivers know to do the right thing.

[PATCH v5 8/9] ARM: dts: r8a7790: add iommus to dmac0 and dmac1

A unconfirmed hardware bug prevents channel 0 and 15 to be used by the DMAC together with the IPMMU. The DMAC driver will disable the channels reducing the effective number of channels to 14 per DMAC. Signed-off-by: Niklas Söderlund Acked-by: Laurent

[PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

Map/Unmap a device resource from a physical address. If no dma_map_ops method is available the operation is a no-op. Signed-off-by: Niklas Söderlund --- include/linux/dma-mapping.h | 32 1 file changed, 32 insertions(+)

Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

Please add some documentation on where/how this should be used. It's not a very obvious interface. ___ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu

[PATCH 0/7] PAMU driver update

This patchset addresses a few issues found on PAMU IOMMU and small changes to enable power management and to support the L3 cache controller on some newer boards. The series starts with a clean-up patch, followed by two errata fixes: A-007907 and A-005982. It continues with two fixes for PCIe

[PATCH 1/7] iommu/fsl: Fix most checkpatch warnings and typos

Signed-off-by: Codrin Ciubotariu --- drivers/iommu/fsl_pamu.c| 92 + drivers/iommu/fsl_pamu.h| 29 +++-- drivers/iommu/fsl_pamu_domain.c | 41 +++--- drivers/iommu/fsl_pamu_domain.h | 2 +- 4