Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm: (27 commits)
  [ARM] 3433/1: ARM: OMAP: 8/8 Update board files
  [ARM] 3455/1: ARM: OMAP: 7/8 Misc updates, take 2
  [ARM] 3454/1: ARM: OMAP: 6/8 Update framebuffer low-level init code, take 2
  [ARM] 3430/1: ARM: OMAP: 5/8 Update PM
  [ARM] 3429/1: ARM: OMAP: 4/8 Update GPIO
  [ARM] 3428/1: ARM: OMAP: 3/8 Update pin multiplexing
  [ARM] 3427/1: ARM: OMAP: 2/8 Update timers
  [ARM] 3426/1: ARM: OMAP: 1/8 Update clock framework
  [ARM] 3396/2: AT91RM9200 Platform devices update
  [ARM] 3395/2: AT91RM9200 Dataflash Card vs MMC selection
  [ARM] 3393/2: AT91RM9200 LED support
  [ARM] 3453/1: Poodle: Correctly set the memory size
  [ARM] 3446/1: i.MX: MMC/SD SDHC controller registration for i.MX/MX1 MX1ADS board
  [ARM] 3444/1: i.MX: Scatter-gather DMA emulation for i.MX/MX1
  [ARM] 3451/1: ep93xx: use the m48t86 rtc driver on the ts72xx platform
  [ARM] 3450/1: ep93xx: use the ep93xx rtc driver
  [ARM] 3452/1: [S3C2410] RX3715 - add nand information
  [ARM] 3449/1: [S3C2410] Anubis - fix NAND timings
  [ARM] 3448/1: [S3C2410] Settle delay when _enabling_ USB PLL
  [ARM] 3442/1: [S3C2410] SMDK: NAND device setup
  ...

1 files changed, 15 insertions, 7 deletions

diff --git a/include/asm-arm/dma-mapping.h b/include/asm-arm/dma-mapping.h
index e3e8541ee63..63ca7412a46 100644
--- a/include/asm-arm/dma-mapping.h
+++ b/include/asm-arm/dma-mapping.h
@@ -47,7 +47,7 @@ static inline int dma_get_cache_alignment(void)
 
 static inline int dma_is_consistent(dma_addr_t handle)
 {
-	return 0;
+	return !!arch_is_coherent();
 }
 
 /*
@@ -145,7 +145,9 @@ static inline dma_addr_t
 dma_map_single(struct device *dev, void *cpu_addr, size_t size,
 	       enum dma_data_direction dir)
 {
-	consistent_sync(cpu_addr, size, dir);
+	if (!arch_is_coherent())
+		consistent_sync(cpu_addr, size, dir);
+
 	return virt_to_dma(dev, (unsigned long)cpu_addr);
 }
 #else
@@ -255,7 +257,9 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 
 		sg->dma_address = page_to_dma(dev, sg->page) + sg->offset;
 		virt = page_address(sg->page) + sg->offset;
-		consistent_sync(virt, sg->length, dir);
+
+		if (!arch_is_coherent())
+			consistent_sync(virt, sg->length, dir);
 	}
 
 	return nents;
@@ -310,14 +314,16 @@ static inline void
 dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, size_t size,
 			enum dma_data_direction dir)
 {
-	consistent_sync((void *)dma_to_virt(dev, handle), size, dir);
+	if (!arch_is_coherent())
+		consistent_sync((void *)dma_to_virt(dev, handle), size, dir);
 }
 
 static inline void
 dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size,
 			   enum dma_data_direction dir)
 {
-	consistent_sync((void *)dma_to_virt(dev, handle), size, dir);
+	if (!arch_is_coherent())
+		consistent_sync((void *)dma_to_virt(dev, handle), size, dir);
 }
 #else
 extern void dma_sync_single_for_cpu(struct device*, dma_addr_t, size_t, enum dma_data_direction);
@@ -347,7 +353,8 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
 
 	for (i = 0; i < nents; i++, sg++) {
 		char *virt = page_address(sg->page) + sg->offset;
-		consistent_sync(virt, sg->length, dir);
+		if (!arch_is_coherent())
+			consistent_sync(virt, sg->length, dir);
 	}
 }
 
@@ -359,7 +366,8 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
 
 	for (i = 0; i < nents; i++, sg++) {
 		char *virt = page_address(sg->page) + sg->offset;
-		consistent_sync(virt, sg->length, dir);
+		if (!arch_is_coherent())
+			consistent_sync(virt, sg->length, dir);
 	}
 }
 #else