From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org,
linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org,
Kyungmin Park <kyungmin.park@samsung.com>,
Arnd Bergmann <arnd@arndb.de>, Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH 4/8] ARM: dma-mapping: implement dma sg methods on top of generic dma ops
Date: Mon, 20 Jun 2011 15:40:12 +0100 [thread overview]
Message-ID: <20110620144012.GE26089@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1308556213-24970-5-git-send-email-m.szyprowski@samsung.com>
On Mon, Jun 20, 2011 at 09:50:09AM +0200, Marek Szyprowski wrote:
> This patch converts all dma_sg methods to be generic (independent of the
> current DMA mapping implementation for ARM architecture). All dma sg
> operations are now implemented on top of respective
> dma_map_page/dma_sync_single_for* operations from dma_map_ops structure.
No. We really don't want to do this. If we want to move the dsb() out
of the mapping functions (which I have a patch for) to avoid doing a
dsb() on each and every sg segment, then we must not use the generic
stuff.
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WARNING: multiple messages have this Message-ID (diff)
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org,
linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org,
Kyungmin Park <kyungmin.park@samsung.com>,
Arnd Bergmann <arnd@arndb.de>, Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH 4/8] ARM: dma-mapping: implement dma sg methods on top of generic dma ops
Date: Mon, 20 Jun 2011 15:40:12 +0100 [thread overview]
Message-ID: <20110620144012.GE26089@n2100.arm.linux.org.uk> (raw)
Message-ID: <20110620144012.gcR7stJ0G4WiikAEWV4qQubAp7h1t7nIzKTgbv5PSdw@z> (raw)
In-Reply-To: <1308556213-24970-5-git-send-email-m.szyprowski@samsung.com>
On Mon, Jun 20, 2011 at 09:50:09AM +0200, Marek Szyprowski wrote:
> This patch converts all dma_sg methods to be generic (independent of the
> current DMA mapping implementation for ARM architecture). All dma sg
> operations are now implemented on top of respective
> dma_map_page/dma_sync_single_for* operations from dma_map_ops structure.
No. We really don't want to do this. If we want to move the dsb() out
of the mapping functions (which I have a patch for) to avoid doing a
dsb() on each and every sg segment, then we must not use the generic
stuff.
WARNING: multiple messages have this Message-ID (diff)
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/8] ARM: dma-mapping: implement dma sg methods on top of generic dma ops
Date: Mon, 20 Jun 2011 15:40:12 +0100 [thread overview]
Message-ID: <20110620144012.GE26089@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1308556213-24970-5-git-send-email-m.szyprowski@samsung.com>
On Mon, Jun 20, 2011 at 09:50:09AM +0200, Marek Szyprowski wrote:
> This patch converts all dma_sg methods to be generic (independent of the
> current DMA mapping implementation for ARM architecture). All dma sg
> operations are now implemented on top of respective
> dma_map_page/dma_sync_single_for* operations from dma_map_ops structure.
No. We really don't want to do this. If we want to move the dsb() out
of the mapping functions (which I have a patch for) to avoid doing a
dsb() on each and every sg segment, then we must not use the generic
stuff.
next prev parent reply other threads:[~2011-06-20 14:40 UTC|newest]
Thread overview: 201+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-20 7:50 [PATCH/RFC 0/8] ARM: DMA-mapping framework redesign Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 1/8] ARM: dma-mapping: remove offset parameter to prepare for generic dma_ops Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 8:35 ` Michal Nazarewicz
2011-06-20 8:35 ` Michal Nazarewicz
2011-06-20 8:35 ` Michal Nazarewicz
2011-06-20 10:46 ` Marek Szyprowski
2011-06-20 10:46 ` Marek Szyprowski
2011-06-20 10:46 ` Marek Szyprowski
2011-07-03 15:28 ` Russell King - ARM Linux
2011-07-03 15:28 ` Russell King - ARM Linux
2011-07-03 15:28 ` Russell King - ARM Linux
2011-07-26 12:56 ` Marek Szyprowski
2011-07-26 12:56 ` Marek Szyprowski
2011-07-26 12:56 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 2/8] ARM: dma-mapping: implement dma_map_single on top of dma_map_page Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 14:39 ` Russell King - ARM Linux
2011-06-20 14:39 ` Russell King - ARM Linux
2011-06-20 14:39 ` Russell King - ARM Linux
2011-06-20 15:15 ` Marek Szyprowski
2011-06-20 15:15 ` Marek Szyprowski
2011-06-20 15:15 ` Marek Szyprowski
2011-06-24 15:24 ` Arnd Bergmann
2011-06-24 15:24 ` Arnd Bergmann
2011-06-24 15:24 ` Arnd Bergmann
2011-06-27 14:29 ` Marek Szyprowski
2011-06-27 14:29 ` Marek Szyprowski
2011-06-27 14:29 ` Marek Szyprowski
2011-06-27 14:53 ` Arnd Bergmann
2011-06-27 14:53 ` Arnd Bergmann
2011-06-27 14:53 ` Arnd Bergmann
2011-06-27 15:06 ` Marek Szyprowski
2011-06-27 15:06 ` Marek Szyprowski
2011-06-27 15:06 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 3/8] ARM: dma-mapping: use asm-generic/dma-mapping-common.h Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 14:33 ` [Linaro-mm-sig] " KyongHo Cho
2011-06-20 14:33 ` KyongHo Cho
2011-06-20 14:33 ` KyongHo Cho
2011-06-21 11:47 ` Marek Szyprowski
2011-06-21 11:47 ` Marek Szyprowski
2011-06-21 11:47 ` Marek Szyprowski
2011-06-24 8:39 ` 'Joerg Roedel'
2011-06-24 8:39 ` 'Joerg Roedel'
2011-06-24 8:39 ` 'Joerg Roedel'
2011-06-24 15:36 ` Arnd Bergmann
2011-06-24 15:36 ` Arnd Bergmann
2011-06-24 15:36 ` Arnd Bergmann
2011-06-24 15:36 ` Arnd Bergmann
2011-06-27 12:18 ` Marek Szyprowski
2011-06-27 12:18 ` Marek Szyprowski
2011-06-27 12:18 ` Marek Szyprowski
2011-06-27 13:19 ` Arnd Bergmann
2011-06-27 13:19 ` Arnd Bergmann
2011-06-27 13:19 ` Arnd Bergmann
2011-07-07 12:09 ` Lennert Buytenhek
2011-07-07 12:09 ` Lennert Buytenhek
2011-07-07 12:09 ` Lennert Buytenhek
2011-07-07 12:38 ` Russell King - ARM Linux
2011-07-07 12:38 ` Russell King - ARM Linux
2011-07-07 12:38 ` Russell King - ARM Linux
2011-07-15 0:10 ` Lennert Buytenhek
2011-07-15 0:10 ` Lennert Buytenhek
2011-07-15 0:10 ` Lennert Buytenhek
2011-07-15 9:27 ` Russell King - ARM Linux
2011-07-15 9:27 ` Russell King - ARM Linux
2011-07-15 9:27 ` Russell King - ARM Linux
2011-07-15 21:53 ` Lennert Buytenhek
2011-07-15 21:53 ` Lennert Buytenhek
2011-07-15 21:53 ` Lennert Buytenhek
2011-06-20 7:50 ` [PATCH 4/8] ARM: dma-mapping: implement dma sg methods on top of generic dma ops Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 14:37 ` KyongHo Cho
2011-06-20 14:37 ` KyongHo Cho
2011-06-20 14:37 ` KyongHo Cho
2011-06-20 14:40 ` Russell King - ARM Linux [this message]
2011-06-20 14:40 ` Russell King - ARM Linux
2011-06-20 14:40 ` Russell King - ARM Linux
2011-06-20 15:23 ` Marek Szyprowski
2011-06-20 15:23 ` Marek Szyprowski
2011-06-20 15:23 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 5/8] ARM: dma-mapping: move all dma bounce code to separate dma ops structure Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 14:42 ` Russell King - ARM Linux
2011-06-20 14:42 ` Russell King - ARM Linux
2011-06-20 14:42 ` Russell King - ARM Linux
2011-06-20 15:31 ` Marek Szyprowski
2011-06-20 15:31 ` Marek Szyprowski
2011-06-20 15:31 ` Marek Szyprowski
2011-06-24 15:47 ` Arnd Bergmann
2011-06-24 15:47 ` Arnd Bergmann
2011-06-24 15:47 ` Arnd Bergmann
2011-06-27 14:20 ` Marek Szyprowski
2011-06-27 14:20 ` Marek Szyprowski
2011-06-27 14:20 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 6/8] ARM: dma-mapping: remove redundant code and cleanup Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 7/8] common: dma-mapping: change alloc/free_coherent method to more generic alloc/free_attrs Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 14:45 ` KyongHo Cho
2011-06-20 14:45 ` KyongHo Cho
2011-06-20 14:45 ` KyongHo Cho
2011-06-20 15:06 ` Russell King - ARM Linux
2011-06-20 15:06 ` Russell King - ARM Linux
2011-06-20 15:06 ` Russell King - ARM Linux
2011-06-20 15:06 ` Russell King - ARM Linux
2011-06-20 15:14 ` [Linaro-mm-sig] " KyongHo Cho
2011-06-20 15:14 ` KyongHo Cho
2011-06-20 15:14 ` KyongHo Cho
2011-06-21 11:23 ` Marek Szyprowski
2011-06-21 11:23 ` Marek Szyprowski
2011-06-21 11:23 ` Marek Szyprowski
2011-06-22 0:00 ` [Linaro-mm-sig] " KyongHo Cho
2011-06-22 0:00 ` KyongHo Cho
2011-06-22 0:00 ` KyongHo Cho
2011-06-24 7:20 ` Marek Szyprowski
2011-06-24 7:20 ` Marek Szyprowski
2011-06-24 7:20 ` Marek Szyprowski
2011-06-24 15:51 ` Arnd Bergmann
2011-06-24 15:51 ` Arnd Bergmann
2011-06-24 15:51 ` Arnd Bergmann
2011-06-24 16:15 ` James Bottomley
2011-06-24 16:15 ` James Bottomley
2011-06-24 16:15 ` James Bottomley
2011-06-24 16:23 ` Arnd Bergmann
2011-06-24 16:23 ` Arnd Bergmann
2011-06-24 16:23 ` Arnd Bergmann
2011-06-27 12:23 ` Marek Szyprowski
2011-06-27 12:23 ` Marek Szyprowski
2011-06-27 12:23 ` Marek Szyprowski
2011-06-27 12:23 ` Marek Szyprowski
2011-06-27 13:22 ` Arnd Bergmann
2011-06-27 13:22 ` Arnd Bergmann
2011-06-27 13:22 ` Arnd Bergmann
2011-06-27 13:30 ` Marek Szyprowski
2011-06-27 13:30 ` Marek Szyprowski
2011-06-27 13:30 ` Marek Szyprowski
2011-06-24 15:53 ` Arnd Bergmann
2011-06-24 15:53 ` Arnd Bergmann
2011-06-24 15:53 ` Arnd Bergmann
2011-06-27 14:41 ` Marek Szyprowski
2011-06-27 14:41 ` Marek Szyprowski
2011-06-27 14:41 ` Marek Szyprowski
2011-06-20 7:50 ` [PATCH 8/8] ARM: dma-mapping: use alloc, mmap, free from dma_ops Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-20 7:50 ` Marek Szyprowski
2011-06-22 6:53 ` [Linaro-mm-sig] " KyongHo Cho
2011-06-22 6:53 ` KyongHo Cho
2011-06-22 6:53 ` KyongHo Cho
2011-06-22 4:53 ` [Linaro-mm-sig] [PATCH/RFC 0/8] ARM: DMA-mapping framework redesign Subash Patel
2011-06-22 4:53 ` Subash Patel
2011-06-22 4:53 ` Subash Patel
2011-06-22 6:59 ` Marek Szyprowski
2011-06-22 6:59 ` Marek Szyprowski
2011-06-22 6:59 ` Marek Szyprowski
2011-06-22 8:53 ` Subash Patel
2011-06-22 8:53 ` Subash Patel
2011-06-22 8:53 ` Subash Patel
2011-06-22 9:27 ` Marek Szyprowski
2011-06-22 9:27 ` Marek Szyprowski
2011-06-22 9:27 ` Marek Szyprowski
2011-06-22 16:00 ` Jordan Crouse
2011-06-22 16:00 ` Jordan Crouse
2011-06-22 16:00 ` Jordan Crouse
2011-06-23 13:09 ` Subash Patel
2011-06-23 13:09 ` Subash Patel
2011-06-23 13:09 ` Subash Patel
2011-06-23 16:24 ` Michael K. Edwards
2011-06-23 16:24 ` Michael K. Edwards
2011-06-23 16:24 ` Michael K. Edwards
2011-06-23 22:09 ` Michael K. Edwards
2011-06-23 22:09 ` Michael K. Edwards
2011-06-23 22:09 ` Michael K. Edwards
2011-06-25 5:23 ` Jonathan Morton
2011-06-25 5:23 ` Jonathan Morton
2011-06-25 5:23 ` Jonathan Morton
2011-06-25 9:55 ` Michael K. Edwards
2011-06-25 9:55 ` Michael K. Edwards
2011-06-25 9:55 ` Michael K. Edwards
2011-06-26 0:06 ` Jonathan Morton
2011-06-26 0:06 ` Jonathan Morton
2011-06-26 0:06 ` Jonathan Morton
2011-06-24 15:20 ` Arnd Bergmann
2011-06-24 15:20 ` Arnd Bergmann
2011-06-24 15:20 ` Arnd Bergmann
2011-06-24 9:18 ` Joerg Roedel
2011-06-24 9:18 ` Joerg Roedel
2011-06-24 9:18 ` Joerg Roedel
2011-06-24 14:26 ` Marek Szyprowski
2011-06-24 14:26 ` Marek Szyprowski
2011-06-24 14:26 ` Marek Szyprowski
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