From: Arnd Bergmann <arnd@arndb.de>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: 'Krishna Reddy' <vdumpa@nvidia.com>,
linux-arm-kernel@lists.infradead.org,
linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
iommu@lists.linux-foundation.org,
'Kyungmin Park' <kyungmin.park@samsung.com>,
'Joerg Roedel' <joro@8bytes.org>,
'Russell King - ARM Linux' <linux@arm.linux.org.uk>,
'Chunsang Jeong' <chunsang.jeong@linaro.org>,
'KyongHo Cho' <pullip.cho@samsung.com>,
Andrzej Pietrasiewicz <andrzej.p@samsung.com>,
'Benjamin Herrenschmidt' <benh@kernel.crashing.org>
Subject: Re: [PATCHv6 7/7] ARM: dma-mapping: add support for IOMMU mapper
Date: Fri, 24 Feb 2012 14:31:01 +0000 [thread overview]
Message-ID: <201202241431.02170.arnd@arndb.de> (raw)
In-Reply-To: <013301ccf2f6$bc4ad840$34e088c0$%szyprowski@samsung.com>
On Friday 24 February 2012, Marek Szyprowski wrote:
> I want to use some kind of chained arrays, each of at most of PAGE_SIZE. This code
> doesn't really need to keep these page pointers in contiguous virtual memory area, so
> it will not be a problem here.
>
Sounds like sg_alloc_table(), could you reuse that instead of rolling your own?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv6 7/7] ARM: dma-mapping: add support for IOMMU mapper
Date: Fri, 24 Feb 2012 14:31:01 +0000 [thread overview]
Message-ID: <201202241431.02170.arnd@arndb.de> (raw)
In-Reply-To: <013301ccf2f6$bc4ad840$34e088c0$%szyprowski@samsung.com>
On Friday 24 February 2012, Marek Szyprowski wrote:
> I want to use some kind of chained arrays, each of at most of PAGE_SIZE. This code
> doesn't really need to keep these page pointers in contiguous virtual memory area, so
> it will not be a problem here.
>
Sounds like sg_alloc_table(), could you reuse that instead of rolling your own?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: 'Krishna Reddy' <vdumpa@nvidia.com>,
linux-arm-kernel@lists.infradead.org,
linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
iommu@lists.linux-foundation.org,
'Kyungmin Park' <kyungmin.park@samsung.com>,
'Joerg Roedel' <joro@8bytes.org>,
'Russell King - ARM Linux' <linux@arm.linux.org.uk>,
'Chunsang Jeong' <chunsang.jeong@linaro.org>,
'KyongHo Cho' <pullip.cho@samsung.com>,
Andrzej Pietrasiewicz <andrzej.p@samsung.com>,
'Benjamin Herrenschmidt' <benh@kernel.crashing.org>
Subject: Re: [PATCHv6 7/7] ARM: dma-mapping: add support for IOMMU mapper
Date: Fri, 24 Feb 2012 14:31:01 +0000 [thread overview]
Message-ID: <201202241431.02170.arnd@arndb.de> (raw)
In-Reply-To: <013301ccf2f6$bc4ad840$34e088c0$%szyprowski@samsung.com>
On Friday 24 February 2012, Marek Szyprowski wrote:
> I want to use some kind of chained arrays, each of at most of PAGE_SIZE. This code
> doesn't really need to keep these page pointers in contiguous virtual memory area, so
> it will not be a problem here.
>
Sounds like sg_alloc_table(), could you reuse that instead of rolling your own?
Arnd
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next prev parent reply other threads:[~2012-02-24 14:31 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 18:58 [PATCHv6 0/7] ARM: DMA-mapping framework redesign Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` [PATCHv6 3/7] ARM: dma-mapping: implement dma sg methods on top of any generic dma ops Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-14 15:02 ` Konrad Rzeszutek Wilk
2012-02-14 15:02 ` Konrad Rzeszutek Wilk
2012-02-14 15:02 ` Konrad Rzeszutek Wilk
2012-02-24 13:24 ` Marek Szyprowski
2012-02-24 13:24 ` Marek Szyprowski
2012-02-24 13:24 ` Marek Szyprowski
[not found] ` <1328900324-20946-1-git-send-email-m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-02-10 18:58 ` [PATCHv6 1/7] ARM: dma-mapping: remove offset parameter to prepare for generic dma_ops Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` [PATCHv6 2/7] ARM: dma-mapping: use asm-generic/dma-mapping-common.h Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-14 15:01 ` Konrad Rzeszutek Wilk
2012-02-14 15:01 ` Konrad Rzeszutek Wilk
2012-02-14 15:01 ` Konrad Rzeszutek Wilk
2012-02-10 18:58 ` [PATCHv6 4/7] ARM: dma-mapping: move all dma bounce code to separate dma ops structure Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` [PATCHv6 5/7] ARM: dma-mapping: remove redundant code and cleanup Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` [PATCHv6 6/7] ARM: dma-mapping: use alloc, mmap, free from dma_ops Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` [PATCHv6 7/7] ARM: dma-mapping: add support for IOMMU mapper Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-10 18:58 ` Marek Szyprowski
2012-02-13 18:18 ` Krishna Reddy
2012-02-13 18:18 ` Krishna Reddy
2012-02-13 18:18 ` Krishna Reddy
2012-02-13 19:58 ` Krishna Reddy
2012-02-13 19:58 ` Krishna Reddy
2012-02-13 19:58 ` Krishna Reddy
[not found] ` <401E54CE964CD94BAE1EB4A729C7087E378E42AE18-wAPRp6hVlRhDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-02-24 9:35 ` Marek Szyprowski
2012-02-24 9:35 ` Marek Szyprowski
2012-02-24 9:35 ` Marek Szyprowski
2012-02-24 9:35 ` Marek Szyprowski
2012-02-24 12:49 ` Arnd Bergmann
2012-02-24 12:49 ` Arnd Bergmann
2012-02-24 12:49 ` Arnd Bergmann
2012-02-24 13:18 ` Marek Szyprowski
2012-02-24 13:18 ` Marek Szyprowski
2012-02-24 13:18 ` Marek Szyprowski
2012-02-24 14:31 ` Arnd Bergmann [this message]
2012-02-24 14:31 ` Arnd Bergmann
2012-02-24 14:31 ` Arnd Bergmann
[not found] ` <201202241431.02170.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-24 15:30 ` Marek Szyprowski
2012-02-24 15:30 ` Marek Szyprowski
2012-02-24 15:30 ` Marek Szyprowski
2012-02-24 15:30 ` Marek Szyprowski
2012-02-14 14:55 ` Konrad Rzeszutek Wilk
2012-02-14 14:55 ` Konrad Rzeszutek Wilk
2012-02-14 14:55 ` Konrad Rzeszutek Wilk
2012-02-24 13:12 ` Marek Szyprowski
2012-02-24 13:12 ` Marek Szyprowski
2012-02-24 13:12 ` Marek Szyprowski
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