From: Subash Patel <subashrp@gmail.com>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org, linux-mm@kvack.org,
linaro-mm-sig@lists.linaro.org,
Daniel Walker <dwalker@codeaurora.org>,
Russell King <linux@arm.linux.org.uk>,
Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>,
Mel Gorman <mel@csn.ul.ie>,
Chunsang Jeong <chunsang.jeong@linaro.org>,
Michal Nazarewicz <mina86@mina86.com>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Jesse Barker <jesse.barker@linaro.org>,
Kyungmin Park <kyungmin.park@samsung.com>,
Ankita Garg <ankita@in.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [Linaro-mm-sig] [PATCH 8/9] ARM: integrate CMA with DMA-mapping subsystem
Date: Fri, 14 Oct 2011 10:03:18 +0530 [thread overview]
Message-ID: <4E97BB8E.3060204@gmail.com> (raw)
In-Reply-To: <1317909290-29832-10-git-send-email-m.szyprowski@samsung.com>
Hi Marek,
As informed to you in private over IRC, below piece of code broke during
booting EXYNOS4:SMDKV310 with ZONE_DMA enabled.
On 10/06/2011 07:24 PM, Marek Szyprowski wrote:
...
> diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
> index fbdd12e..9c27fbd 100644
> --- a/arch/arm/mm/init.c
> +++ b/arch/arm/mm/init.c
> @@ -21,6 +21,7 @@
> #include<linux/gfp.h>
> #include<linux/memblock.h>
> #include<linux/sort.h>
> +#include<linux/dma-contiguous.h>
>
> #include<asm/mach-types.h>
> #include<asm/prom.h>
> @@ -371,6 +372,13 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
> if (mdesc->reserve)
> mdesc->reserve();
>
> + /* reserve memory for DMA contigouos allocations */
> +#ifdef CONFIG_ZONE_DMA
> + dma_contiguous_reserve(PHYS_OFFSET + mdesc->dma_zone_size - 1);
> +#else
> + dma_contiguous_reserve(0);
> +#endif
> +
> memblock_analyze();
> memblock_dump_all();
> }
Regards,
Subash
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next prev parent reply other threads:[~2011-10-14 4:33 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-06 13:54 [PATCHv16 0/9] Contiguous Memory Allocator Marek Szyprowski
2011-10-06 13:54 ` [PATCH 1/9] mm: move some functions from memory_hotplug.c to page_isolation.c Marek Szyprowski
2011-10-14 23:23 ` Andrew Morton
2011-10-18 12:05 ` Mel Gorman
2011-10-06 13:54 ` [PATCH 2/9] mm: alloc_contig_freed_pages() added Marek Szyprowski
2011-10-14 23:29 ` Andrew Morton
2011-10-16 8:01 ` Michal Nazarewicz
2011-10-16 8:31 ` Andrew Morton
2011-10-16 9:39 ` Michal Nazarewicz
2011-10-17 12:21 ` Marek Szyprowski
2011-10-17 18:39 ` Andrew Morton
2011-10-18 12:21 ` Mel Gorman
2011-10-18 17:26 ` Michal Nazarewicz
2011-10-18 17:48 ` Dave Hansen
2011-10-18 18:00 ` Michal Nazarewicz
2011-10-21 10:06 ` Mel Gorman
2011-10-24 1:00 ` Michal Nazarewicz
2011-10-24 4:05 ` Michal Nazarewicz
2011-10-24 4:05 ` Michal Nazarewicz
2011-11-01 15:04 ` Mel Gorman
2011-11-01 18:06 ` Michal Nazarewicz
2011-11-01 18:47 ` Mel Gorman
2011-10-24 4:05 ` Michal Nazarewicz
2011-10-24 4:05 ` Michal Nazarewicz
2011-10-06 13:54 ` [PATCH 3/9] mm: alloc_contig_range() added Marek Szyprowski
2011-10-14 23:35 ` Andrew Morton
2011-10-18 12:38 ` Mel Gorman
2011-10-06 13:54 ` [PATCH 4/9] mm: MIGRATE_CMA migration type added Marek Szyprowski
2011-10-14 23:38 ` Andrew Morton
2011-10-18 13:08 ` Mel Gorman
2011-10-24 19:32 ` Michal Nazarewicz
2011-10-27 9:10 ` Michal Nazarewicz
2011-10-06 13:54 ` [PATCH 5/9] mm: MIGRATE_CMA isolation functions added Marek Szyprowski
2011-10-06 13:54 ` [PATCH 6/9] drivers: add Contiguous Memory Allocator Marek Szyprowski
2011-10-14 23:57 ` Andrew Morton
2011-10-16 10:08 ` Russell King - ARM Linux
2011-10-18 13:43 ` Mel Gorman
2011-10-24 19:39 ` Michal Nazarewicz
2011-11-04 10:41 ` Marek Szyprowski
2011-10-06 13:54 ` [PATCH 7/7] ARM: integrate CMA with DMA-mapping subsystem Marek Szyprowski
2011-10-06 14:18 ` Marek Szyprowski
2011-10-15 0:03 ` Andrew Morton
2011-10-06 13:54 ` [PATCH 7/9] X86: " Marek Szyprowski
2011-10-06 13:54 ` [PATCH 8/9] ARM: " Marek Szyprowski
2011-10-14 4:33 ` Subash Patel [this message]
2011-10-14 9:14 ` [Linaro-mm-sig] " Marek Szyprowski
2011-10-06 13:54 ` [PATCH 9/9] ARM: Samsung: use CMA for 2 memory banks for s5p-mfc device Marek Szyprowski
2011-10-07 16:27 ` [PATCHv16 0/9] Contiguous Memory Allocator Arnd Bergmann
2011-10-10 6:58 ` [Linaro-mm-sig] " Ohad Ben-Cohen
2011-10-10 12:02 ` Clark, Rob
2011-10-10 22:56 ` Andrew Morton
2011-10-11 6:57 ` Marek Szyprowski
2011-10-11 13:52 ` Arnd Bergmann
2011-10-14 23:19 ` Andrew Morton
2011-10-15 14:24 ` Arnd Bergmann
2011-10-10 12:07 ` [Linaro-mm-sig] " Maxime Coquelin
2011-10-11 7:17 ` Marek Szyprowski
2011-10-11 7:30 ` Maxime Coquelin
2011-10-11 10:50 ` Marek Szyprowski
2011-10-11 11:25 ` Maxime Coquelin
2011-10-11 13:05 ` Marek Szyprowski
2011-10-12 11:08 ` [PATCH] fixup: mm: alloc_contig_range: increase min_free_kbytes during allocation Marek Szyprowski
2011-10-12 13:01 ` Maxime Coquelin
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