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[1/3] ARM: EXYNOS: Increase DMA pool allocator size for framebuffer

Message ID 1322718611-20934-2-git-send-email-tushar.behera@linaro.org
State Rejected
Headers show

Commit Message

Tushar Behera Dec. 1, 2011, 5:50 a.m. UTC 
Some of the boards under mach-exynos initialize frame-buffers
for which the memory requirement is more than 2MB, hence the
default dma pool allocation size of 2MB is not sufficient.

The consistent dma size is hence increased to successfully
allocate memory for those boards.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
---
 arch/arm/mach-exynos/cpu.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/mach-exynos/cpu.c b/arch/arm/mach-exynos/cpu.c
index 8e09f34..d02ed16 100644
--- a/arch/arm/mach-exynos/cpu.c
+++ b/arch/arm/mach-exynos/cpu.c
@@ -12,6 +12,7 @@ 
 #include <linux/sysdev.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
@@ -188,6 +189,12 @@  void __init exynos4_map_io(void)
 	iotable_init(exynos_iodesc, ARRAY_SIZE(exynos_iodesc));
 	iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
 
+	/*
+	 * Default allocation size for ARM = 2MB
+	 * Memory required for FB = (~ 2.4 MB) 4MB
+	 */
+	init_consistent_dma_size(SZ_2M + SZ_4M);
+
 	if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0)
 		iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0));
 	else