From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Mon, 27 Jul 2015 01:17:35 +0000 (+0900)
Subject: fimc-is: Add memory barriers in place of vb2_ion_sync_for_device() calls
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7f0edd038b36f5c9a474f4a95b814e5f80c5cdf6;p=platform%2Fkernel%2Flinux-exynos.git

fimc-is: Add memory barriers in place of vb2_ion_sync_for_device() calls

Change-Id: If208bd4f9f7ef2b2c488b004d552891e57577e25
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---

diff --git a/drivers/media/platform/exynos/fimc-is/fimc-is-device-ischain.c b/drivers/media/platform/exynos/fimc-is/fimc-is-device-ischain.c
index 30c0caafc78b..be0de25d28ea 100644
--- a/drivers/media/platform/exynos/fimc-is/fimc-is-device-ischain.c
+++ b/drivers/media/platform/exynos/fimc-is/fimc-is-device-ischain.c
@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
+#include <asm/barrier.h>
 #include <asm/pgtable.h>
 #include <linux/firmware.h>
 #include <linux/dma-mapping.h>
@@ -688,6 +689,7 @@ static void fimc_is_ischain_cache_flush(struct fimc_is_device_ischain *this,
 		size,
 		DMA_TO_DEVICE);
 #endif
+	smp_mb();
 }
 
 static void fimc_is_ischain_region_invalid(struct fimc_is_device_ischain *device)
@@ -699,6 +701,7 @@ static void fimc_is_ischain_region_invalid(struct fimc_is_device_ischain *device
 		sizeof(struct is_region),
 		DMA_FROM_DEVICE);
 #endif
+	smp_mb();
 }
 
 static void fimc_is_ischain_region_flush(struct fimc_is_device_ischain *device)
@@ -710,6 +713,7 @@ static void fimc_is_ischain_region_flush(struct fimc_is_device_ischain *device)
 		sizeof(struct is_region),
 		DMA_TO_DEVICE);
 #endif
+	smp_mb();
 }
 
 void fimc_is_ischain_meta_flush(struct fimc_is_frame *frame)
@@ -723,6 +727,7 @@ void fimc_is_ischain_meta_flush(struct fimc_is_frame *frame)
 		DMA_TO_DEVICE);
 #endif
 #endif
+	smp_mb();
 }
 
 void fimc_is_ischain_meta_invalid(struct fimc_is_frame *frame)
@@ -736,6 +741,7 @@ void fimc_is_ischain_meta_invalid(struct fimc_is_frame *frame)
 		DMA_FROM_DEVICE);
 #endif
 #endif
+	smp_mb();
 }
 
 static void fimc_is_ischain_version(struct fimc_is_device_ischain *this, char *name, const char *load_bin, u32 size)