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From: Helge Deller <deller@gmx.de>
To: Christoph Hellwig <hch@lst.de>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Joonyoung Shim <jy0922.shim@samsung.com>,
Seung-Woo Kim <sw0312.kim@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Ben Skeggs <bskeggs@redhat.com>, Pawel Osciak <pawel@osciak.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Matt Porter <mporter@kernel.crashing.org>,
iommu@lists.linux-foundation.org
Cc: Tom Lendacky <thomas.lendacky@amd.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org,
linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org,
netdev@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-scsi@vger.kernel.org, linux-mm@kvack.org,
alsa-devel@alsa-project.org
Subject: Re: a saner API for allocating DMA addressable pages
Date: Sat, 29 Aug 2020 11:46:56 +0200 [thread overview]
Message-ID: <73b81ba2-3f1c-cce9-0bcf-e739c2a2f6d8@gmx.de> (raw)
In-Reply-To: <20200819065555.1802761-1-hch@lst.de>
Hi Christoph,
On 19.08.20 08:55, Christoph Hellwig wrote:
> this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs
> with a separate new dma_alloc_pages API, which is available on all
> platforms. In addition to cleaning up the convoluted code path, this
> ensures that other drivers that have asked for better support for
> non-coherent DMA to pages with incurring bounce buffering over can finally
> be properly supported.
> ....
> A git tree is available here:
>
> git://git.infradead.org/users/hch/misc.git dma_alloc_pages
I've tested this tree on my parisc machine which uses the 53c700
and lasi_82596 drivers.
Everything worked as expected, so you may add:
Tested-by: Helge Deller <deller@gmx.de> # parisc
Thanks!
Helge
>
> Gitweb:
>
> http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma_alloc_pages
>
>
> Diffstat:
> Documentation/core-api/dma-api.rst | 92 ++----
> Documentation/core-api/dma-attributes.rst | 8
> Documentation/userspace-api/media/v4l/buffer.rst | 17 -
> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1
> arch/alpha/kernel/pci_iommu.c | 2
> arch/arm/include/asm/dma-direct.h | 4
> arch/arm/mm/dma-mapping-nommu.c | 2
> arch/arm/mm/dma-mapping.c | 4
> arch/ia64/Kconfig | 3
> arch/ia64/hp/common/sba_iommu.c | 2
> arch/ia64/kernel/dma-mapping.c | 14
> arch/ia64/mm/init.c | 3
> arch/mips/Kconfig | 1
> arch/mips/bmips/dma.c | 4
> arch/mips/cavium-octeon/dma-octeon.c | 4
> arch/mips/include/asm/dma-direct.h | 4
> arch/mips/include/asm/jazzdma.h | 2
> arch/mips/jazz/jazzdma.c | 102 +------
> arch/mips/loongson2ef/fuloong-2e/dma.c | 4
> arch/mips/loongson2ef/lemote-2f/dma.c | 4
> arch/mips/loongson64/dma.c | 4
> arch/mips/mm/dma-noncoherent.c | 48 +--
> arch/mips/pci/pci-ar2315.c | 4
> arch/mips/pci/pci-xtalk-bridge.c | 4
> arch/mips/sgi-ip32/ip32-dma.c | 4
> arch/parisc/Kconfig | 1
> arch/parisc/kernel/pci-dma.c | 6
> arch/powerpc/include/asm/dma-direct.h | 4
> arch/powerpc/kernel/dma-iommu.c | 2
> arch/powerpc/platforms/ps3/system-bus.c | 4
> arch/powerpc/platforms/pseries/vio.c | 2
> arch/s390/pci/pci_dma.c | 2
> arch/x86/kernel/amd_gart_64.c | 8
> drivers/gpu/drm/exynos/exynos_drm_gem.c | 2
> drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c | 3
> drivers/iommu/dma-iommu.c | 2
> drivers/iommu/intel/iommu.c | 6
> drivers/media/common/videobuf2/videobuf2-core.c | 36 --
> drivers/media/common/videobuf2/videobuf2-dma-contig.c | 19 -
> drivers/media/common/videobuf2/videobuf2-dma-sg.c | 3
> drivers/media/common/videobuf2/videobuf2-v4l2.c | 12
> drivers/net/ethernet/amd/au1000_eth.c | 15 -
> drivers/net/ethernet/i825xx/lasi_82596.c | 36 +-
> drivers/net/ethernet/i825xx/lib82596.c | 148 +++++-----
> drivers/net/ethernet/i825xx/sni_82596.c | 23 -
> drivers/net/ethernet/seeq/sgiseeq.c | 24 -
> drivers/nvme/host/pci.c | 79 ++---
> drivers/parisc/ccio-dma.c | 2
> drivers/parisc/sba_iommu.c | 2
> drivers/scsi/53c700.c | 120 ++++----
> drivers/scsi/53c700.h | 9
> drivers/scsi/sgiwd93.c | 14
> drivers/xen/swiotlb-xen.c | 2
> include/linux/dma-direct.h | 55 ++-
> include/linux/dma-mapping.h | 32 +-
> include/linux/dma-noncoherent.h | 21 -
> include/linux/dmapool.h | 23 +
> include/linux/gfp.h | 6
> include/media/videobuf2-core.h | 3
> include/uapi/linux/videodev2.h | 2
> kernel/dma/Kconfig | 9
> kernel/dma/Makefile | 1
> kernel/dma/coherent.c | 17 +
> kernel/dma/direct.c | 112 +++++--
> kernel/dma/mapping.c | 104 ++-----
> kernel/dma/ops_helpers.c | 86 ++++++
> kernel/dma/pool.c | 2
> kernel/dma/swiotlb.c | 4
> kernel/dma/virt.c | 2
> mm/dmapool.c | 211 +++++++++------
> sound/mips/hal2.c | 58 +---
> 71 files changed, 872 insertions(+), 803 deletions(-)
>
prev parent reply other threads:[~2020-08-29 9:48 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200819065610eucas1p2fde88e81917071b1888e7cc01ba0f298@eucas1p2.samsung.com>
2020-08-19 6:55 ` Christoph Hellwig
2020-08-19 6:55 ` [PATCH 01/28] mm: turn alloc_pages into an inline function Christoph Hellwig
2020-08-19 6:55 ` [PATCH 02/28] drm/exynos: stop setting DMA_ATTR_NON_CONSISTENT Christoph Hellwig
2020-08-19 6:55 ` [PATCH 03/28] drm/nouveau/gk20a: " Christoph Hellwig
2020-08-19 6:55 ` [PATCH 04/28] net/au1000-eth: stop using DMA_ATTR_NON_CONSISTENT Christoph Hellwig
2020-08-19 6:55 ` [PATCH 05/28] media/v4l2: remove V4L2-FLAG-MEMORY-NON-CONSISTENT Christoph Hellwig
2020-08-19 11:16 ` Tomasz Figa
2020-08-19 11:51 ` Robin Murphy
2020-08-19 12:49 ` Tomasz Figa
2020-08-19 13:57 ` Christoph Hellwig
2020-08-19 14:11 ` Tomasz Figa
2020-08-20 4:45 ` Christoph Hellwig
2020-08-20 10:09 ` Tomasz Figa
2020-08-20 16:51 ` Christoph Hellwig
2020-08-19 14:07 ` Robin Murphy
2020-08-19 14:22 ` Tomasz Figa
2020-08-20 4:52 ` Christoph Hellwig
2020-08-20 5:02 ` Christoph Hellwig
2020-08-20 10:24 ` Tomasz Figa
2020-08-20 16:52 ` Christoph Hellwig
2020-08-20 17:41 ` Tomasz Figa
2020-08-19 13:54 ` Christoph Hellwig
2020-08-19 13:57 ` Tomasz Figa
2020-08-20 4:43 ` Christoph Hellwig
2020-08-20 5:20 ` Christoph Hellwig
2020-08-20 10:05 ` Tomasz Figa
2020-08-20 16:54 ` Christoph Hellwig
2020-08-20 17:33 ` Tomasz Figa
2020-09-01 11:06 ` Christoph Hellwig
2020-09-01 15:02 ` Tomasz Figa
2020-08-19 6:55 ` [PATCH 06/28] lib82596: move DMA allocation into the callers of i82596_probe Christoph Hellwig
2020-09-01 13:29 ` Thomas Bogendoerfer
2020-08-19 6:55 ` [PATCH 07/28] 53c700: improve non-coherent DMA handling Christoph Hellwig
2020-09-01 14:52 ` James Bottomley
2020-09-01 15:05 ` Matthew Wilcox
2020-09-01 15:22 ` James Bottomley
2020-09-01 16:21 ` Helge Deller
2020-09-01 16:41 ` Helge Deller
2020-09-01 16:53 ` Matthew Wilcox
2020-09-02 15:00 ` Helge Deller
2020-08-19 6:55 ` [PATCH 08/28] MIPS: make dma_sync_*_for_cpu a little less overzealous Christoph Hellwig
2020-09-01 13:53 ` Thomas Bogendoerfer
2020-08-19 6:55 ` [PATCH 09/28] MIPS/jazzdma: remove the unused vdma_remap function Christoph Hellwig
2020-09-01 13:49 ` Thomas Bogendoerfer
2020-08-19 6:55 ` [PATCH 10/28] MIPS/jazzdma: decouple from dma-direct Christoph Hellwig
2020-09-01 13:49 ` Thomas Bogendoerfer
2020-08-19 6:55 ` [PATCH 11/28] dma-mapping: add (back) arch_dma_mark_clean for ia64 Christoph Hellwig
2020-08-19 6:55 ` [PATCH 12/28] dma-direct: remove dma_direct_{alloc,free}_pages Christoph Hellwig
2020-08-19 6:55 ` [PATCH 13/28] dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages Christoph Hellwig
2020-08-19 6:55 ` [PATCH 14/28] dma-direct: use phys_to_dma_direct in dma_direct_alloc Christoph Hellwig
2020-08-19 6:55 ` [PATCH 15/28] dma-direct: remove __dma_to_phys Christoph Hellwig
2020-08-19 6:55 ` [PATCH 16/28] dma-direct: rename and cleanup __phys_to_dma Christoph Hellwig
2020-08-19 6:55 ` [PATCH 17/28] dma-mapping: move dma_common_{mmap,get_sgtable} out of mapping.c Christoph Hellwig
2020-08-19 6:55 ` [PATCH 18/28] dma-mapping: move the dma_declare_coherent_memory documentation Christoph Hellwig
2020-08-19 6:55 ` [PATCH 19/28] dma-mapping: replace DMA_ATTR_NON_CONSISTENT with dma_{alloc,free}_pages Christoph Hellwig
2020-08-19 15:03 ` [PATCH 19/28] dma-mapping: replace DMA_ATTR_NON_CONSISTENT with dma_{alloc, free}_pages Tomasz Figa
2020-08-20 5:15 ` Christoph Hellwig
2020-08-19 6:55 ` [PATCH 20/28] sgiwd93: convert from dma_cache_sync to dma_sync_single_for_device Christoph Hellwig
2020-08-19 6:55 ` [PATCH 21/28] hal2: " Christoph Hellwig
2020-08-19 6:55 ` [PATCH 22/28] sgiseeq: " Christoph Hellwig
2020-09-01 15:22 ` Thomas Bogendoerfer
2020-09-01 17:12 ` Thomas Bogendoerfer
2020-09-01 17:16 ` Christoph Hellwig
2020-09-01 17:38 ` Thomas Bogendoerfer
2020-09-02 21:38 ` Thomas Bogendoerfer
2020-09-03 8:42 ` Christoph Hellwig
2020-09-03 8:43 ` Christoph Hellwig
2020-09-03 8:46 ` Christoph Hellwig
2020-08-19 6:55 ` [PATCH 23/28] lib82596: " Christoph Hellwig
2020-08-19 6:55 ` [PATCH 24/28] 53c700: " Christoph Hellwig
2020-08-19 6:55 ` [PATCH 25/28] dma-mapping: remove dma_cache_sync Christoph Hellwig
2020-08-19 6:55 ` [PATCH 26/28] dmapool: add dma_alloc_pages support Christoph Hellwig
2020-08-19 6:55 ` [PATCH 27/28] nvme-pci: fix PRP pool size Christoph Hellwig
2020-08-19 6:55 ` [PATCH 28/28] nvme-pci: use dma_alloc_pages backed dmapools Christoph Hellwig
2020-08-25 11:30 ` a saner API for allocating DMA addressable pages Marek Szyprowski
2020-08-25 13:26 ` Christoph Hellwig
2020-08-29 9:46 ` Helge Deller [this message]
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