From: Li Yang <leoyang.li@nxp.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
freedreno@lists.freedesktop.org, kvm@vger.kernel.org,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
Linux IOMMU <iommu@lists.linux-foundation.org>,
Netdev <netdev@vger.kernel.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>
Subject: Re: cleanup unused or almost unused IOMMU APIs and the FSL PAMU driver
Date: Fri, 5 Mar 2021 18:03:45 -0600 [thread overview]
Message-ID: <CADRPPNTSzuuqW97_vd3h5cpHe7gOLyw3zCaqapb8YVqPF-rOfA@mail.gmail.com> (raw)
In-Reply-To: <20210301084257.945454-1-hch@lst.de>
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(-)
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prev parent reply other threads:[~2021-03-06 0:05 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-01 8:42 cleanup unused or almost unused IOMMU APIs and the FSL PAMU driver Christoph Hellwig
2021-03-01 8:42 ` [PATCH 01/17] iommu: remove the unused domain_window_disable method Christoph Hellwig
2021-03-01 8:42 ` [PATCH 02/17] iommu/fsl_pamu: remove fsl_pamu_get_domain_attr Christoph Hellwig
2021-03-01 8:42 ` [PATCH 03/17] iommu/fsl_pamu: remove support for setting DOMAIN_ATTR_GEOMETRY Christoph Hellwig
2021-03-01 8:42 ` [PATCH 04/17] iommu/fsl_pamu: merge iommu_alloc_dma_domain into fsl_pamu_domain_alloc Christoph Hellwig
2021-03-01 8:42 ` [PATCH 05/17] iommu/fsl_pamu: remove support for multiple windows Christoph Hellwig
2021-03-01 8:42 ` [PATCH 06/17] iommu/fsl_pamu: remove ->domain_window_enable Christoph Hellwig
2021-03-01 8:42 ` [PATCH 07/17] iommu/fsl_pamu: replace DOMAIN_ATTR_FSL_PAMU_STASH with a direct call Christoph Hellwig
2021-03-01 8:42 ` [PATCH 08/17] iommu/fsl_pamu: merge pamu_set_liodn and map_liodn Christoph Hellwig
2021-03-01 8:42 ` [PATCH 09/17] iommu/fsl_pamu: merge handle_attach_device into fsl_pamu_attach_device Christoph Hellwig
2021-03-01 8:42 ` [PATCH 10/17] iommu/fsl_pamu: enable the liodn when attaching a device Christoph Hellwig
2021-03-01 8:42 ` [PATCH 11/17] iommu/fsl_pamu: remove the snoop_id field Christoph Hellwig
2021-03-01 8:42 ` [PATCH 12/17] iommu: remove DOMAIN_ATTR_PAGING Christoph Hellwig
2021-03-01 8:42 ` [PATCH 13/17] iommu: remove DOMAIN_ATTR_GEOMETRY Christoph Hellwig
2021-03-01 8:42 ` [PATCH 14/17] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE Christoph Hellwig
2021-03-04 15:25 ` Robin Murphy
2021-03-10 8:54 ` Christoph Hellwig
2021-03-10 9:15 ` Christoph Hellwig
2021-03-10 9:25 ` Christoph Hellwig
2021-03-10 18:39 ` Robin Murphy
2021-03-11 8:26 ` Christoph Hellwig
2021-03-12 16:18 ` Robin Murphy
2021-03-15 8:33 ` Christoph Hellwig
2021-03-16 13:03 ` Robin Murphy
2021-03-01 8:42 ` [PATCH 15/17] iommu: remove DOMAIN_ATTR_NESTING Christoph Hellwig
2021-03-14 10:44 ` Auger Eric
2021-03-14 15:58 ` Christoph Hellwig
2021-03-15 7:52 ` Auger Eric
2021-03-25 6:12 ` Tian, Kevin
2021-03-25 6:51 ` Christoph Hellwig
2021-03-01 8:42 ` [PATCH 16/17] iommu: remove DOMAIN_ATTR_IO_PGTABLE_CFG Christoph Hellwig
2021-03-04 15:48 ` Robin Murphy
2021-03-04 23:11 ` [Freedreno] " Rob Clark
2021-03-05 10:00 ` Will Deacon
2021-03-10 8:58 ` Christoph Hellwig
2021-03-10 10:55 ` Will Deacon
2021-03-01 8:42 ` [PATCH 17/17] iommu: remove iommu_domain_set_attr Christoph Hellwig
2021-03-04 11:10 ` cleanup unused or almost unused IOMMU APIs and the FSL PAMU driver Joerg Roedel
2021-03-06 0:03 ` Li Yang [this message]
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