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From: Marek Szyprowski <m.szyprowski@samsung.com>
To: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
	linaro-mm-sig@lists.linaro.org
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Michal Nazarewicz <mina86@mina86.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 2/2] ARM: mm: don't limit default CMA region only to low memory
Date: Thu, 21 Aug 2014 10:45:14 +0200	[thread overview]
Message-ID: <1408610714-16204-3-git-send-email-m.szyprowski@samsung.com> (raw)
In-Reply-To: <1408610714-16204-1-git-send-email-m.szyprowski@samsung.com>

DMA-mapping supports CMA regions places either in low or high memory, so
there is no longer needed to limit default CMA regions only to low memory.
The real limit is still defined by architecture specific DMA limit.

Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 arch/arm/mm/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 659c75d808dc..c1b513555786 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -322,7 +322,7 @@ void __init arm_memblock_init(const struct machine_desc *mdesc)
 	 * reserve memory for DMA contigouos allocations,
 	 * must come from DMA area inside low memory
 	 */
-	dma_contiguous_reserve(min(arm_dma_limit, arm_lowmem_limit));
+	dma_contiguous_reserve(arm_dma_limit);
 
 	arm_memblock_steal_permitted = false;
 	memblock_dump_all();
-- 
1.9.2

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WARNING: multiple messages have this Message-ID (diff)
From: m.szyprowski@samsung.com (Marek Szyprowski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: mm: don't limit default CMA region only to low memory
Date: Thu, 21 Aug 2014 10:45:14 +0200	[thread overview]
Message-ID: <1408610714-16204-3-git-send-email-m.szyprowski@samsung.com> (raw)
In-Reply-To: <1408610714-16204-1-git-send-email-m.szyprowski@samsung.com>

DMA-mapping supports CMA regions places either in low or high memory, so
there is no longer needed to limit default CMA regions only to low memory.
The real limit is still defined by architecture specific DMA limit.

Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 arch/arm/mm/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 659c75d808dc..c1b513555786 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -322,7 +322,7 @@ void __init arm_memblock_init(const struct machine_desc *mdesc)
 	 * reserve memory for DMA contigouos allocations,
 	 * must come from DMA area inside low memory
 	 */
-	dma_contiguous_reserve(min(arm_dma_limit, arm_lowmem_limit));
+	dma_contiguous_reserve(arm_dma_limit);
 
 	arm_memblock_steal_permitted = false;
 	memblock_dump_all();
-- 
1.9.2

  parent reply	other threads:[~2014-08-21  8:45 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-21  8:45 [PATCH 0/2] ARM: Remove lowmem limit for default CMA region Marek Szyprowski
2014-08-21  8:45 ` Marek Szyprowski
2014-08-21  8:45 ` [PATCH 1/2] mm: cma: adjust address limit to avoid hitting low/high memory boundary Marek Szyprowski
2014-08-21  8:45   ` Marek Szyprowski
2014-08-24 13:34   ` Michal Nazarewicz
2014-08-24 13:34     ` Michal Nazarewicz
2014-08-21  8:45 ` Marek Szyprowski [this message]
2014-08-21  8:45   ` [PATCH 2/2] ARM: mm: don't limit default CMA region only to low memory Marek Szyprowski
2014-08-21  9:26   ` Daniel Drake
2014-08-21  9:26     ` Daniel Drake
2014-08-24 13:34   ` Michal Nazarewicz
2014-08-24 13:34     ` Michal Nazarewicz
2014-08-25  1:26 ` [PATCH 0/2] ARM: Remove lowmem limit for default CMA region Minchan Kim
2014-08-25  1:26   ` Minchan Kim
2014-08-25  8:00   ` Marek Szyprowski
2014-08-25  8:00     ` Marek Szyprowski
2014-08-25  8:18     ` Minchan Kim
2014-08-25  8:18       ` Minchan Kim
2014-08-25  8:33       ` Marek Szyprowski
2014-08-25  8:33         ` Marek Szyprowski
2014-08-26  2:43         ` Minchan Kim
2014-08-26  2:43           ` Minchan Kim
2014-08-26 12:34           ` Marek Szyprowski
2014-08-26 12:34             ` Marek Szyprowski
2014-08-27  0:36             ` Minchan Kim
2014-08-27  0:36               ` Minchan Kim
2014-08-27  1:42               ` Joonsoo Kim
2014-08-27  1:42                 ` Joonsoo Kim
2014-08-27  2:57                 ` Minchan Kim
2014-08-27  2:57                   ` Minchan Kim
2014-08-26 23:10 ` Andrew Morton
2014-08-26 23:10   ` Andrew Morton

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