On Mon, Mar 1, 2021 at 2:44 AM Christoph Hellwig hch@lst.de wrote:

Hi all,

there are a bunch of IOMMU APIs that are entirely unused, or only used as a private communication channel between the FSL PAMU driver and it's only consumer, the qbman portal driver.

So this series drops a huge chunk of entirely unused FSL PAMU functionality, then drops all kinds of unused IOMMU APIs, and then replaces what is left of the iommu_attrs with properly typed, smaller and easier to use specific APIs.

It looks like the unused APIs were added for functionality that were never completed later on. So

Acked-by: Li Yang leoyang.li@nxp.com

Diffstat: arch/powerpc/include/asm/fsl_pamu_stash.h | 12 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 drivers/iommu/amd/iommu.c | 23 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 85 --- drivers/iommu/arm/arm-smmu/arm-smmu.c | 122 +--- drivers/iommu/dma-iommu.c | 8 drivers/iommu/fsl_pamu.c | 264 ---------- drivers/iommu/fsl_pamu.h | 10 drivers/iommu/fsl_pamu_domain.c | 694 ++-------------------------- drivers/iommu/fsl_pamu_domain.h | 46 - drivers/iommu/intel/iommu.c | 55 -- drivers/iommu/iommu.c | 75 --- drivers/soc/fsl/qbman/qman_portal.c | 56 -- drivers/vfio/vfio_iommu_type1.c | 31 - drivers/vhost/vdpa.c | 10 include/linux/iommu.h | 81 --- 16 files changed, 214 insertions(+), 1360 deletions(-)