From: KyongHo Cho <pullip.cho@samsung.com>
To: Subash Patel <subashrp@gmail.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.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,
Shariq Hasnain <shariq.hasnain@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Krishna Reddy <vdumpa@nvidia.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Andrzej Pietrasiewicz <andrzej.p@samsung.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Chunsang Jeong <chunsang.jeong@linaro.org>
Subject: Re: [PATCHv7 9/9] ARM: dma-mapping: add support for IOMMU mapper
Date: Wed, 21 Mar 2012 08:56:51 +0900 [thread overview]
Message-ID: <CAHQjnOMjSPDOymJe356AWnJszQv+X-QWrVrB7ahYDkXBr5HrQw@mail.gmail.com> (raw)
In-Reply-To: <4F688B2D.20808@gmail.com>
On Tue, Mar 20, 2012 at 10:50 PM, Subash Patel <subashrp@gmail.com> wrote:
> Sorry for digging this very late. But as part of integrating dma_map v7 &
> sysmmu v12 on 3.3-rc5, I am facing below issue:
>
> a) By un-selecting IOMMU in menu config, I am able to allocate memory in
> vb2-dma-contig
>
> b) When I enable SYSMMU support for the IP's, I am receiving below fault:
>
> Unhandled fault: external abort on non-linefetch (0x818) at 0xb6f55000
>
> I think this has something to do with the access to the SYSMMU registers for
> writing the page table. Has anyone of you faced this issue while testing
> these(dma_map+iommu) patches on kernel mentioned above? This must be
> something related to recent changes, as I didn't have issues with these
> patches on 3.2 kernel.
>
0xb6f55000 is not an address of SYSMMU register if your kernel starts
at 0xc0000000.
Can you tell me any detailed information or situation?
Regards,
KyongHo.
next prev parent reply other threads:[~2012-03-20 23:56 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-29 15:04 [PATCHv7 0/9] ARM: DMA-mapping framework redesign Marek Szyprowski
2012-02-29 15:04 ` [PATCHv7 1/9] ARM: dma-mapping: introduce ARM_DMA_ERROR constant Marek Szyprowski
2012-02-29 15:04 ` [PATCHv7 2/9] ARM: dma-mapping: use pr_* instread of printk Marek Szyprowski
2012-02-29 15:04 ` Marek Szyprowski
2012-02-29 15:04 ` [PATCHv7 3/9] ARM: dma-mapping: remove offset parameter to prepare for generic dma_ops Marek Szyprowski
2012-02-29 15:04 ` Marek Szyprowski
2012-02-29 15:04 ` [PATCHv7 5/9] ARM: dma-mapping: implement dma sg methods on top of any generic dma ops Marek Szyprowski
2012-02-29 15:04 ` Marek Szyprowski
2012-03-26 11:38 ` Subash Patel
2012-03-26 11:38 ` Subash Patel
2012-02-29 15:04 ` [PATCHv7 6/9] ARM: dma-mapping: move all dma bounce code to separate dma ops structure Marek Szyprowski
2012-02-29 15:04 ` [PATCHv7 7/9] ARM: dma-mapping: remove redundant code and cleanup Marek Szyprowski
[not found] ` <1330527862-16234-1-git-send-email-m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-02-29 15:04 ` [PATCHv7 4/9] ARM: dma-mapping: use asm-generic/dma-mapping-common.h Marek Szyprowski
2012-02-29 15:04 ` Marek Szyprowski
2012-02-29 15:04 ` [PATCHv7 8/9] ARM: dma-mapping: use alloc, mmap, free from dma_ops Marek Szyprowski
2012-02-29 15:04 ` Marek Szyprowski
2012-03-22 13:45 ` Subash Patel
2012-03-23 12:12 ` Marek Szyprowski
2012-03-23 12:26 ` [PATCH 0/2] ARM: dma-mapping: Fix mmap support for coherent buffers Marek Szyprowski
2012-03-23 12:26 ` Marek Szyprowski
2012-03-23 12:26 ` [PATCH 1/2] common: add dma_mmap_from_coherent() function Marek Szyprowski
2012-03-23 12:26 ` Marek Szyprowski
2012-03-23 12:26 ` [PATCH 2/2] arm: dma-mapping: use dma_mmap_from_coherent() Marek Szyprowski
2012-03-23 12:26 ` Marek Szyprowski
[not found] ` <1332505563-17646-1-git-send-email-m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-03-26 11:04 ` [PATCH 0/2] ARM: dma-mapping: Fix mmap support for coherent buffers Subash Patel
2012-03-26 11:04 ` Subash Patel
2012-02-29 15:04 ` [PATCHv7 9/9] ARM: dma-mapping: add support for IOMMU mapper Marek Szyprowski
2012-03-02 8:05 ` KyongHo Cho
2012-03-02 8:05 ` KyongHo Cho
2012-03-02 11:07 ` Marek Szyprowski
2012-03-02 11:07 ` Marek Szyprowski
2012-03-20 13:50 ` Subash Patel
2012-03-20 13:50 ` Subash Patel
2012-03-20 23:56 ` KyongHo Cho [this message]
2012-03-20 23:56 ` KyongHo Cho
2012-03-22 13:59 ` Subash Patel
2012-03-22 13:59 ` Subash Patel
2012-03-30 7:14 ` Subash Patel
2012-03-30 7:14 ` Subash Patel
2012-03-05 11:47 ` Hiroshi Doyu
2012-03-05 11:47 ` Hiroshi Doyu
[not found] ` <20120305134721.0ab0d0e6de56fa30250059b1-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-03-05 16:07 ` Marek Szyprowski
2012-03-05 16:07 ` Marek Szyprowski
2012-03-06 22:48 ` Krishna Reddy
2012-03-06 22:48 ` Krishna Reddy
2012-03-07 6:09 ` Hiroshi Doyu
2012-03-07 6:09 ` Hiroshi Doyu
[not found] ` <20120307.080952.2152478004740487196.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-03-07 6:37 ` Hiroshi Doyu
2012-03-07 6:37 ` Hiroshi Doyu
2012-03-07 7:06 ` Krishna Reddy
2012-03-07 7:06 ` Krishna Reddy
2012-03-07 7:16 ` Hiroshi Doyu
2012-03-07 7:16 ` Hiroshi Doyu
2012-03-07 16:58 ` Marek Szyprowski
2012-03-07 16:58 ` Marek Szyprowski
[not found] ` <011701ccfc83$78030180$68090480$%szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-03-09 14:53 ` [PATCH] ARM: dma-mapping: fix calculation of iova bitmap size Marek Szyprowski
2012-03-09 14:53 ` Marek Szyprowski
2012-03-06 23:21 ` [PATCHv7 9/9] ARM: dma-mapping: add support for IOMMU mapper Russell King - ARM Linux
2012-03-06 23:21 ` Russell King - ARM Linux
2012-03-06 23:36 ` Krishna Reddy
2012-03-06 23:36 ` Krishna Reddy
2012-03-07 16:17 ` Marek Szyprowski
2012-03-29 7:19 ` Hiroshi Doyu
2012-03-29 7:19 ` Hiroshi Doyu
2012-03-29 8:00 ` Marek Szyprowski
2012-03-29 8:00 ` Marek Szyprowski
2012-03-30 2:24 ` Krishna Reddy
2012-03-30 2:24 ` Krishna Reddy
2012-03-30 6:30 ` Marek Szyprowski
2012-03-30 6:30 ` Marek Szyprowski
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