From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: tndave <tushar.n.dave-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org,
linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ@public.gmane.org,
linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-hexagon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
openrisc-cunTk1MwBs9a3B2Vnqf2dGD2FQJk+8+b@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b@public.gmane.org,
linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: clean up and modularize arch dma_mapping interface V2
Date: Sat, 24 Jun 2017 09:18:55 +0200 [thread overview]
Message-ID: <20170624071855.GD14580@lst.de> (raw)
In-Reply-To: <162d7932-5766-4c29-5471-07d1b699190a-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
On Wed, Jun 21, 2017 at 12:24:28PM -0700, tndave wrote:
> Thanks for doing this.
> So archs can still have their own definition for dma_set_mask() if
> HAVE_ARCH_DMA_SET_MASK is y?
> (and similarly for dma_set_coherent_mask() when
> CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK is y)
> Any plan to change these?
Yes, those should go away, but I'm not entirely sure how yet. We'll
need some hook for switching between an IOMMU and a direct mapping
(I guess that's what you want to do for sparc as well?), and I need
to find the best way to do that. Reimplementing all of dma_set_mask
and dma_set_coherent_mask is something that I want to move away from.
next prev parent reply other threads:[~2017-06-24 7:18 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-16 18:10 clean up and modularize arch dma_mapping interface V2 Christoph Hellwig
2017-06-16 18:10 ` [PATCH 01/44] firmware/ivc: use dma_mapping_error Christoph Hellwig
2017-06-16 18:10 ` [PATCH 02/44] ibmveth: properly unwind on init errors Christoph Hellwig
2017-06-16 18:10 ` [PATCH 03/44] dmaengine: ioat: don't use DMA_ERROR_CODE Christoph Hellwig
2017-06-16 20:40 ` Alexander Duyck
2017-06-18 7:09 ` Christoph Hellwig
2017-06-16 18:10 ` [PATCH 04/44] drm/exynos: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 05/44] drm/armada: don't abuse DMA_ERROR_CODE Christoph Hellwig
2017-06-16 18:10 ` [PATCH 06/44] iommu/dma: don't rely on DMA_ERROR_CODE Christoph Hellwig
[not found] ` <20170616181059.19206-7-hch-jcswGhMUV9g@public.gmane.org>
2017-06-19 15:12 ` Robin Murphy
2017-06-16 18:10 ` [PATCH 07/44] xen-swiotlb: consolidate xen_swiotlb_dma_ops Christoph Hellwig
2017-06-16 18:10 ` [PATCH 08/44] xen-swiotlb: implement ->mapping_error Christoph Hellwig
2017-06-16 18:10 ` [PATCH 09/44] c6x: remove DMA_ERROR_CODE Christoph Hellwig
2017-06-16 18:10 ` [PATCH 10/44] ia64: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 11/44] m32r: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 12/44] microblaze: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 13/44] openrisc: " Christoph Hellwig
[not found] ` <20170616181059.19206-1-hch-jcswGhMUV9g@public.gmane.org>
2017-06-16 18:10 ` [PATCH 14/44] sh: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 42/44] powerpc/cell: use the dma_supported method for ops switching Christoph Hellwig
2017-06-17 20:50 ` Benjamin Herrenschmidt
2017-06-18 7:13 ` Christoph Hellwig
2017-06-18 9:54 ` Benjamin Herrenschmidt
2017-06-16 18:10 ` [PATCH 15/44] xtensa: remove DMA_ERROR_CODE Christoph Hellwig
2017-06-16 18:10 ` [PATCH 16/44] arm64: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 17/44] hexagon: switch to use ->mapping_error for error reporting Christoph Hellwig
2017-06-16 18:10 ` [PATCH 18/44] iommu/amd: implement ->mapping_error Christoph Hellwig
2017-06-16 18:10 ` [PATCH 19/44] s390: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 20/44] sparc: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 21/44] powerpc: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 22/44] x86/pci-nommu: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 23/44] x86/calgary: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 24/44] x86: remove DMA_ERROR_CODE Christoph Hellwig
2017-06-16 18:10 ` [PATCH 25/44] arm: implement ->mapping_error Christoph Hellwig
2017-06-16 18:10 ` [PATCH 26/44] dma-mapping: remove DMA_ERROR_CODE Christoph Hellwig
2017-06-16 18:10 ` [PATCH 27/44] sparc: remove leon_dma_ops Christoph Hellwig
2017-06-16 18:10 ` [PATCH 28/44] sparc: remove arch specific dma_supported implementations Christoph Hellwig
2017-06-16 18:10 ` [PATCH 29/44] dma-noop: remove dma_supported and mapping_error methods Christoph Hellwig
2017-06-16 18:10 ` [PATCH 30/44] dma-virt: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 31/44] hexagon: remove arch-specific dma_supported implementation Christoph Hellwig
2017-06-16 18:10 ` [PATCH 32/44] hexagon: remove the unused dma_is_consistent prototype Christoph Hellwig
2017-06-16 18:10 ` [PATCH 33/44] openrisc: remove arch-specific dma_supported implementation Christoph Hellwig
2017-06-16 18:10 ` [PATCH 34/44] arm: remove arch specific " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 35/44] x86: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 36/44] dma-mapping: remove HAVE_ARCH_DMA_SUPPORTED Christoph Hellwig
2017-06-16 18:10 ` [PATCH 37/44] mips/loongson64: implement ->dma_supported instead of ->set_dma_mask Christoph Hellwig
2017-06-16 18:10 ` [PATCH 38/44] arm: " Christoph Hellwig
2017-06-16 18:10 ` [PATCH 39/44] xen-swiotlb: remove xen_swiotlb_set_dma_mask Christoph Hellwig
2017-06-16 18:10 ` [PATCH 40/44] tile: remove dma_supported and mapping_error methods Christoph Hellwig
2017-06-16 18:10 ` [PATCH 41/44] powerpc/cell: clean up fixed mapping dma_ops initialization Christoph Hellwig
2017-06-16 18:10 ` [PATCH 43/44] dma-mapping: remove the set_dma_mask method Christoph Hellwig
2017-06-16 18:10 ` [PATCH 44/44] powerpc: merge __dma_set_mask into dma_set_mask Christoph Hellwig
2017-06-20 12:41 ` new dma-mapping tree, was Re: clean up and modularize arch dma_mapping interface V2 Christoph Hellwig
2017-06-20 13:04 ` Stephen Rothwell
2017-06-20 13:16 ` Christoph Hellwig
2017-06-21 13:32 ` Marek Szyprowski
[not found] ` <5425587c-73e8-e24a-86a3-8a65a7791dcb-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2017-06-22 21:53 ` Stephen Rothwell
2017-06-26 7:03 ` Christoph Hellwig
2017-06-20 13:14 ` Robin Murphy
2017-06-20 13:15 ` Christoph Hellwig
2017-06-21 19:24 ` tndave
[not found] ` <162d7932-5766-4c29-5471-07d1b699190a-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2017-06-24 7:18 ` Christoph Hellwig [this message]
2017-06-24 15:36 ` Benjamin Herrenschmidt
[not found] ` <1498318616.31581.87.camel-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2017-06-26 9:47 ` Christoph Hellwig
[not found] ` <20170626094739.GB13981-jcswGhMUV9g@public.gmane.org>
2017-06-26 22:06 ` tndave
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170624071855.GD14580@lst.de \
--to=hch-jcswghmuv9g@public.gmane.org \
--cc=dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org \
--cc=iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ@public.gmane.org \
--cc=linux-hexagon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org \
--cc=linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org \
--cc=linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org \
--cc=netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=openrisc-cunTk1MwBs9a3B2Vnqf2dGD2FQJk+8+b@public.gmane.org \
--cc=sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=tushar.n.dave-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org \
--cc=x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).