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From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org
Cc: linux-arch@vger.kernel.org, linux-mips@linux-mips.org,
	"Michal Simek" <monstr@monstr.eu>,
	linux-ia64@vger.kernel.org,
	"Christian König" <ckoenig.leichtzumerken@gmail.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	"Konrad Rzeszutek Wilk" <konrad@darnok.org>,
	"Guan Xuetao" <gxt@mprc.pku.edu.cn>,
	linuxppc-dev@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org
Subject: consolidate swiotlb dma_map implementations
Date: Wed, 10 Jan 2018 09:09:10 +0100	[thread overview]
Message-ID: <20180110080932.14157-1-hch@lst.de> (raw)

A lot of architectures have essentially identical dma_map_ops
implementations to use swiotlb.  This series adds new generic
swiotlb_alloc/free helpers that take the attrs argument exposed
in dma_map_ops, and which do an enhanced direct allocation
modelled after x86 and reused from the dma-direct code, and
then switches most architectures over to it.  The only exceptions
are mips, which requires additional cache flushing which will
need a new abstraction, and x86 itself which will be handled in
a later series with other x86 dma mapping changes.

To support the generic code a few architectures that currently
use ZONE_DMA/GFP_DMA for <= 32-bit allocations are switched to
implement ZONE_DMA32 instead.

This series is based on the previously sent series to consolidate
the direct dma mapping implementation.  A git tree with this
series as well as the prerequisites is available here:

   git://git.infradead.org/users/hch/misc.git swiotlb

Gitweb:

   http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/swiotlb

WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org
Cc: "Konrad Rzeszutek Wilk" <konrad@darnok.org>,
	"Michal Simek" <monstr@monstr.eu>,
	"Guan Xuetao" <gxt@mprc.pku.edu.cn>,
	"Christian König" <ckoenig.leichtzumerken@gmail.com>,
	linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org,
	linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org,
	x86@kernel.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: consolidate swiotlb dma_map implementations
Date: Wed, 10 Jan 2018 09:09:10 +0100	[thread overview]
Message-ID: <20180110080932.14157-1-hch@lst.de> (raw)
Message-ID: <20180110080910.7EBV9lcc6kQtoUSmAtkXCfp-kt3_LGvh-GC5qSNMbYI@z> (raw)

A lot of architectures have essentially identical dma_map_ops
implementations to use swiotlb.  This series adds new generic
swiotlb_alloc/free helpers that take the attrs argument exposed
in dma_map_ops, and which do an enhanced direct allocation
modelled after x86 and reused from the dma-direct code, and
then switches most architectures over to it.  The only exceptions
are mips, which requires additional cache flushing which will
need a new abstraction, and x86 itself which will be handled in
a later series with other x86 dma mapping changes.

To support the generic code a few architectures that currently
use ZONE_DMA/GFP_DMA for <= 32-bit allocations are switched to
implement ZONE_DMA32 instead.

This series is based on the previously sent series to consolidate
the direct dma mapping implementation.  A git tree with this
series as well as the prerequisites is available here:

   git://git.infradead.org/users/hch/misc.git swiotlb

Gitweb:

   http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/swiotlb

             reply	other threads:[~2018-01-10  8:09 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-10  8:09 Christoph Hellwig [this message]
2018-01-10  8:09 ` consolidate swiotlb dma_map implementations Christoph Hellwig
2018-01-10  8:09 ` [PATCH 01/22] swiotlb: suppress warning when __GFP_NOWARN is set Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 02/22] arm64: rename swiotlb_dma_ops Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
     [not found]   ` <20180110080932.14157-3-hch-jcswGhMUV9g@public.gmane.org>
2018-01-10 12:13     ` Robin Murphy
2018-01-10 12:13       ` Robin Murphy
2018-01-10  8:09 ` [PATCH 03/22] ia64: " Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-12 13:24   ` Konrad Rzeszutek Wilk
2018-01-12 13:24     ` Konrad Rzeszutek Wilk
2018-01-10  8:09 ` [PATCH 04/22] powerpc: " Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-12 13:25   ` Konrad Rzeszutek Wilk
2018-01-12 13:25     ` Konrad Rzeszutek Wilk
2018-01-10  8:09 ` [PATCH 05/22] x86: " Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
     [not found]   ` <20180110080932.14157-6-hch-jcswGhMUV9g@public.gmane.org>
2018-01-12 13:25     ` Konrad Rzeszutek Wilk
2018-01-12 13:25       ` Konrad Rzeszutek Wilk
2018-01-10  8:09 ` [PATCH 06/22] swiotlb: rename swiotlb_free to swiotlb_exit Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-12 13:39   ` Konrad Rzeszutek Wilk
2018-01-12 13:39     ` Konrad Rzeszutek Wilk
2018-01-10  8:09 ` [PATCH 07/22] swiotlb: add common swiotlb_map_ops Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 08/22] swiotlb: wire up ->dma_supported in swiotlb_dma_ops Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10 12:16   ` Robin Murphy
2018-01-10 12:16     ` Robin Murphy
2018-01-10 15:35     ` Christoph Hellwig
2018-01-10 15:35       ` Christoph Hellwig
     [not found]       ` <20180110153517.GF17790-jcswGhMUV9g@public.gmane.org>
2018-01-10 17:23         ` Robin Murphy
2018-01-10 17:23           ` Robin Murphy
2018-01-10  8:09 ` [PATCH 09/22] swiotlb: refactor coherent buffer freeing Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 10/22] swiotlb: refactor coherent buffer allocation Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10 12:22   ` Robin Murphy
2018-01-10 15:46     ` Christoph Hellwig
2018-01-10 15:46       ` Christoph Hellwig
2018-01-10 17:02       ` Robin Murphy
     [not found]         ` <03c25dda-30da-9169-a8a1-1720ec741b9d-5wv7dgnIgG8@public.gmane.org>
2018-01-15  9:10           ` Christoph Hellwig
2018-01-15  9:10             ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 11/22] swiotlb: remove various exports Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 12/22] ia64: replace ZONE_DMA with ZONE_DMA32 Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 13/22] ia64: use generic swiotlb_ops Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 14/22] ia64: clean up swiotlb support Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 15/22] ia64: remove an ifdef around the content of pci-dma.c Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 16/22] unicore32: use generic swiotlb_ops Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 17/22] tile: replace ZONE_DMA with ZONE_DMA32 Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 18/22] tile: use generic swiotlb_ops Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 19/22] mips/netlogic: remove swiotlb support Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 20/22] mips: use swiotlb_{alloc,free} Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10  8:09 ` [PATCH 21/22] arm64: replace ZONE_DMA with ZONE_DMA32 Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
     [not found]   ` <20180110080932.14157-22-hch-jcswGhMUV9g@public.gmane.org>
2018-01-10 12:58     ` Robin Murphy
2018-01-10 12:58       ` Robin Murphy
2018-01-10 15:55       ` Christoph Hellwig
2018-01-10 15:55         ` Christoph Hellwig
     [not found]         ` <20180110155517.GA18774-jcswGhMUV9g@public.gmane.org>
2018-01-10 15:55           ` Christoph Hellwig
2018-01-10 15:55             ` Christoph Hellwig
     [not found]             ` <20180110155546.GB18903-jcswGhMUV9g@public.gmane.org>
2018-01-10 17:10               ` Robin Murphy
2018-01-10 17:10                 ` Robin Murphy
2018-01-10  8:09 ` [PATCH 22/22] arm64: use swiotlb_alloc and swiotlb_free Christoph Hellwig
2018-01-10  8:09   ` Christoph Hellwig
2018-01-10 13:16   ` Robin Murphy
2018-01-10 13:16     ` Robin Murphy
2018-01-10  8:23 ` consolidate swiotlb dma_map implementations Christian König
     [not found] ` <20180110080932.14157-1-hch-jcswGhMUV9g@public.gmane.org>
2018-01-16  7:53   ` Christoph Hellwig
2018-01-16  7:53     ` Christoph Hellwig
     [not found]     ` <20180116075338.GB12693-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2018-01-16  8:22       ` Christian König
2018-01-16  8:22         ` Christian König
2018-01-16  8:28         ` Christoph Hellwig
2018-01-16  8:28           ` Christoph Hellwig
     [not found]           ` <20180116082827.GA9211-jcswGhMUV9g@public.gmane.org>
2018-01-16  8:52             ` Christian König
2018-01-16  8:52               ` Christian König

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