This patch is an example how device private CMA area can be activated.
It creates one CMA region and assigns it to the first s5p-fimc device on
Samsung Goni S5PC110 board.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
arch/arm/mach-s5pv210/mach-goni.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-s5pv210/mach-goni.c
b/arch/arm/mach-s5pv210/mach-goni.c
index 14578f5..f766c45 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -26,6 +26,7 @@
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
+#include <linux/dma-contiguous.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -857,6 +858,9 @@ static void __init goni_map_io(void)
static void __init goni_reserve(void)
{
s5p_mfc_reserve_mem(0x43000000, 8 << 20, 0x51000000, 8 << 20);
+
+ /* Create private 16MiB contiguous memory area for s5p-fimc.0 device */
+ dma_declare_contiguous(&s5p_device_fimc0.dev, 16*SZ_1M, 0);
}
static void __init goni_machine_init(void)
--
1.7.1.569.g6f426
--
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