From: Christoph Hellwig <hch@lst.de>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Li Yang <leoyang.li@nxp.com>
Cc: freedreno@lists.freedesktop.org, kvm@vger.kernel.org,
Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@lists.ozlabs.org, dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
iommu@lists.linux-foundation.org, netdev@vger.kernel.org,
linux-arm-msm@vger.kernel.org,
David Woodhouse <dwmw2@infradead.org>,
linux-arm-kernel@lists.infradead.org,
Lu Baolu <baolu.lu@linux.intel.com>
Subject: cleanup unused or almost unused IOMMU APIs and the FSL PAMU driver v3
Date: Thu, 1 Apr 2021 17:52:36 +0200 [thread overview]
Message-ID: <20210401155256.298656-1-hch@lst.de> (raw)
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.
Changes since v2:
- remove a comment fragment a little bit earlier
- fix the aperture end passed to pamu_config_ppaace
- fix a few trivial typos
- remove more unused arguments to pamu_config_ppaace
- do not accidentally enable lazy flushing for non-dma domains
Changes since v1:
- use a different way to control strict flushing behavior (from Robin)
- remove the iommu_cmd_line wrappers
- simplify the pagetbl quirks a little more
- slightly improved patch ordering
- better changelogs
Diffstat:
arch/powerpc/include/asm/fsl_pamu_stash.h | 12
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 5
drivers/iommu/amd/iommu.c | 23
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 75 ---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 1
drivers/iommu/arm/arm-smmu/arm-smmu.c | 111 +---
drivers/iommu/arm/arm-smmu/arm-smmu.h | 2
drivers/iommu/dma-iommu.c | 9
drivers/iommu/fsl_pamu.c | 293 -----------
drivers/iommu/fsl_pamu.h | 12
drivers/iommu/fsl_pamu_domain.c | 688 ++--------------------------
drivers/iommu/fsl_pamu_domain.h | 46 -
drivers/iommu/intel/iommu.c | 95 ---
drivers/iommu/iommu.c | 118 +---
drivers/soc/fsl/qbman/qman_portal.c | 55 --
drivers/vfio/vfio_iommu_type1.c | 31 -
drivers/vhost/vdpa.c | 10
include/linux/io-pgtable.h | 4
include/linux/iommu.h | 76 ---
19 files changed, 203 insertions(+), 1463 deletions(-)
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next reply other threads:[~2021-04-01 16:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 15:52 Christoph Hellwig [this message]
2021-04-01 15:52 ` [PATCH 01/20] iommu: remove the unused domain_window_disable method Christoph Hellwig
2021-04-01 15:52 ` [PATCH 02/20] iommu/fsl_pamu: remove fsl_pamu_get_domain_attr Christoph Hellwig
2021-04-01 15:52 ` [PATCH 03/20] iommu/fsl_pamu: remove support for setting DOMAIN_ATTR_GEOMETRY Christoph Hellwig
2021-04-01 15:52 ` [PATCH 04/20] iommu/fsl_pamu: merge iommu_alloc_dma_domain into fsl_pamu_domain_alloc Christoph Hellwig
2021-04-01 15:52 ` [PATCH 05/20] iommu/fsl_pamu: remove support for multiple windows Christoph Hellwig
2021-04-01 15:52 ` [PATCH 06/20] iommu/fsl_pamu: remove ->domain_window_enable Christoph Hellwig
2021-04-01 15:52 ` [PATCH 07/20] iommu/fsl_pamu: replace DOMAIN_ATTR_FSL_PAMU_STASH with a direct call Christoph Hellwig
2021-04-01 15:52 ` [PATCH 08/20] iommu/fsl_pamu: merge pamu_set_liodn and map_liodn Christoph Hellwig
2021-04-01 15:52 ` [PATCH 09/20] iommu/fsl_pamu: merge handle_attach_device into fsl_pamu_attach_device Christoph Hellwig
2021-04-01 15:52 ` [PATCH 10/20] iommu/fsl_pamu: enable the liodn when attaching a device Christoph Hellwig
2021-04-01 15:52 ` [PATCH 11/20] iommu/fsl_pamu: remove the snoop_id field Christoph Hellwig
2021-04-01 15:52 ` [PATCH 12/20] iommu/fsl_pamu: remove the rpn and snoop_id arguments to pamu_config_ppaac Christoph Hellwig
2021-04-01 15:52 ` [PATCH 13/20] iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace Christoph Hellwig
2021-04-01 15:52 ` [PATCH 14/20] iommu: remove DOMAIN_ATTR_PAGING Christoph Hellwig
2021-04-01 15:52 ` [PATCH 15/20] iommu: remove DOMAIN_ATTR_GEOMETRY Christoph Hellwig
2021-04-01 15:52 ` [PATCH 16/20] iommu: remove DOMAIN_ATTR_NESTING Christoph Hellwig
2021-04-01 15:52 ` [PATCH 17/20] iommu: remove iommu_set_cmd_line_dma_api and iommu_cmd_line_dma_api Christoph Hellwig
2021-04-01 15:52 ` [PATCH 18/20] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE Christoph Hellwig
2021-04-01 15:52 ` [PATCH 19/20] iommu: remove DOMAIN_ATTR_IO_PGTABLE_CFG Christoph Hellwig
2021-04-01 15:52 ` [PATCH 20/20] iommu: remove iommu_domain_{get,set}_attr Christoph Hellwig
2021-04-07 8:57 ` cleanup unused or almost unused IOMMU APIs and the FSL PAMU driver v3 Joerg Roedel
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