ARM: move DMA alloc functions to dma.h

This better separates the DMA from the MMU functionality.

Also move all drivers that only depends on asm/mmu.h for the alloc
functions over to the common header.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/include/asm/dma.h

@@ -5,4 +5,27 @@
  *
  */
 
-#include <asm/mmu.h>
+#include <common.h>
+
+#define dma_alloc dma_alloc
+static inline void *dma_alloc(size_t size)
+{
+	return xmemalign(64, ALIGN(size, 64));
+}
+
+#ifndef CONFIG_MMU
+static inline void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
+{
+	void *ret = xmemalign(4096, size);
+	if (dma_handle)
+		*dma_handle = (dma_addr_t)ret;
+
+	return ret;
+}
+
+static inline void dma_free_coherent(void *mem, dma_addr_t dma_handle,
+				     size_t size)
+{
+	free(mem);
+}
+#endif

arch/arm/include/asm/mmu.h

@@ -11,8 +11,6 @@
 #define PMD_SECT_DEF_UNCACHED (PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT)
 #define PMD_SECT_DEF_CACHED (PMD_SECT_WB | PMD_SECT_DEF_UNCACHED)
 
-#define DMA_ADDRESS_BROKEN	NULL
-
 struct arm_memory;
 
 static inline void mmu_enable(void)
@@ -28,16 +26,7 @@ static inline void setup_dma_coherent(unsigned long offset)
 {
 }
 
-#define dma_alloc dma_alloc
-static inline void *dma_alloc(size_t size)
-{
-	return xmemalign(64, ALIGN(size, 64));
-}
-
 #ifdef CONFIG_MMU
-void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle);
-void dma_free_coherent(void *mem, dma_addr_t dma_handle, size_t size);
-
 void dma_clean_range(unsigned long, unsigned long);
 void dma_flush_range(unsigned long, unsigned long);
 void dma_inv_range(unsigned long, unsigned long);
@@ -47,21 +36,6 @@ uint32_t mmu_get_pte_cached_flags(void);
 uint32_t mmu_get_pte_uncached_flags(void);
 
 #else
-static inline void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
-{
-	void *ret = xmemalign(4096, size);
-	if (dma_handle)
-		*dma_handle = (dma_addr_t)ret;
-
-	return ret;
-}
-
-static inline void dma_free_coherent(void *mem, dma_addr_t dma_handle,
-				     size_t size)
-{
-	free(mem);
-}
-
 static inline void dma_clean_range(unsigned long s, unsigned long e)
 {
 }

drivers/ata/ahci.c

@@ -21,6 +21,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <errno.h>
 #include <io.h>

drivers/dma/apbh_dma.c

@@ -20,13 +20,13 @@
 #include <linux/list.h>
 #include <linux/err.h>
 #include <common.h>
+#include <dma.h>
 #include <driver.h>
 #include <malloc.h>
 #include <errno.h>
 #include <init.h>
 #include <io.h>
 
-#include <asm/mmu.h>
 
 #define HW_APBHX_CTRL0				0x000
 #define BM_APBH_CTRL0_APB_BURST8_EN		(1 << 29)

drivers/mci/dw_mmc.c

@@ -18,6 +18,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <driver.h>
 #include <malloc.h>
 #include <clock.h>

drivers/mtd/nand/nand_mxs.c

@@ -26,6 +26,7 @@
 #include <linux/err.h>
 #include <of_mtd.h>
 #include <common.h>
+#include <dma.h>
 #include <malloc.h>
 #include <errno.h>
 #include <driver.h>
@@ -33,7 +34,6 @@
 #include <io.h>
 #include <dma/apbh-dma.h>
 #include <stmp-device.h>
-#include <asm/mmu.h>
 #include <mach/generic.h>
 
 #define	MX28_BLOCK_SFTRST				(1 << 31)

drivers/net/altera_tse.c

@@ -21,6 +21,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <net.h>
 #include <init.h>
 #include <clock.h>

drivers/net/arc_emac.c

@@ -19,6 +19,7 @@
 #include <asm/mmu.h>
 #include <clock.h>
 #include <common.h>
+#include <dma.h>
 #include <net.h>
 #include <io.h>
 #include <init.h>

drivers/net/at91_ether.c

@@ -20,6 +20,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <net.h>
 #include <clock.h>
 #include <malloc.h>

drivers/net/designware.c

@@ -22,6 +22,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <io.h>
 #include <net.h>

drivers/net/fec_imx.c

@@ -15,6 +15,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <malloc.h>
 #include <net.h>
 #include <init.h>

drivers/net/macb.c

@@ -38,6 +38,7 @@
 
 #include <net.h>
 #include <clock.h>
+#include <dma.h>
 #include <malloc.h>
 #include <xfuncs.h>
 #include <init.h>

drivers/net/mvneta.c

@@ -24,6 +24,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <io.h>
 #include <net.h>

drivers/net/orion-gbe.c

@@ -27,6 +27,7 @@
  * MA 02110-1301 USA
  */
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <io.h>
 #include <net.h>

drivers/net/rtl8139.c

@@ -1,4 +1,5 @@
 #include <common.h>
+#include <dma.h>
 #include <net.h>
 #include <malloc.h>
 #include <init.h>

drivers/net/rtl8169.c

@@ -16,6 +16,7 @@
 
 #include <asm/mmu.h>
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <net.h>
 #include <malloc.h>

drivers/net/xgmac.c

@@ -16,6 +16,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <net.h>
 #include <clock.h>
 #include <malloc.h>

drivers/spi/mxs_spi.c

@@ -23,7 +23,6 @@
 #include <stmp-device.h>
 #include <linux/clk.h>
 #include <linux/err.h>
-#include <asm/mmu.h>
 #include <mach/generic.h>
 #include <mach/clock.h>
 #include <mach/ssp.h>

drivers/usb/gadget/fsl_udc.c

@@ -1,4 +1,5 @@
 #include <common.h>
+#include <dma.h>
 #include <errno.h>
 #include <dma.h>
 #include <init.h>
@@ -10,6 +11,8 @@
 #include <asm/byteorder.h>
 #include <linux/err.h>
 
+#include <asm/mmu.h>
+
 /* ### define USB registers here
  */
 #define USB_MAX_CTRL_PAYLOAD		64

drivers/usb/host/ehci-hcd.c

@@ -18,6 +18,7 @@
  */
 /*#define DEBUG */
 #include <common.h>
+#include <dma.h>
 #include <asm/byteorder.h>
 #include <usb/usb.h>
 #include <io.h>

drivers/usb/host/ohci-hcd.c

@@ -41,6 +41,7 @@
  *     to activate workaround for bug #41 or this driver will NOT work!
  */
 #include <common.h>
+#include <dma.h>
 #include <clock.h>
 #include <malloc.h>
 #include <usb/usb.h>

drivers/usb/host/xhci-hcd.c

@@ -12,9 +12,9 @@
  * warranty of any kind, whether express or implied.
  */
 //#define DEBUG
-#include <asm/mmu.h>
 #include <clock.h>
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <io.h>
 #include <linux/err.h>

drivers/usb/host/xhci-hub.c

@@ -14,7 +14,6 @@
  * warranty of any kind, whether express or implied.
  */
 //#define DEBUG
-#include <asm/mmu.h>
 #include <clock.h>
 #include <common.h>
 #include <io.h>

drivers/video/atmel_hlcdfb.c

@@ -27,7 +27,6 @@
 #include <mach/io.h>
 #include <mach/cpu.h>
 #include <errno.h>
-#include <asm/mmu.h>
 
 #include "atmel_lcdfb.h"
 

drivers/video/atmel_lcdfb.c

@@ -25,7 +25,6 @@
 #include <mach/io.h>
 #include <mach/cpu.h>
 #include <errno.h>
-#include <asm/mmu.h>
 #include <linux/clk.h>
 
 #include "atmel_lcdfb.h"

drivers/video/atmel_lcdfb_core.c

@@ -19,11 +19,11 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <io.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <malloc.h>
-#include <asm/mmu.h>
 
 #include "atmel_lcdfb.h"
 

drivers/video/imx-ipu-fb.c

@@ -18,6 +18,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <init.h>
 #include <io.h>
 #include <mach/imx35-regs.h>

drivers/video/imx-ipu-v3/ipu-common.c

@@ -19,7 +19,6 @@
 #include <clock.h>
 #include <driver.h>
 #include <init.h>
-#include <asm/mmu.h>
 #include <mach/generic.h>
 #include <mach/imx6-regs.h>
 #include <mach/imx53-regs.h>

drivers/video/imx-ipu-v3/ipufb.c

@@ -12,6 +12,7 @@
 #define pr_fmt(fmt) "IPU: " fmt
 
 #include <common.h>
+#include <dma.h>
 #include <fb.h>
 #include <io.h>
 #include <driver.h>
@@ -21,7 +22,6 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <asm-generic/div64.h>
-#include <asm/mmu.h>
 
 #include "imx-ipu-v3.h"
 #include "ipuv3-plane.h"

drivers/video/omap.c

@@ -19,6 +19,7 @@
  */
 
 #include <driver.h>
+#include <dma.h>
 #include <fb.h>
 #include <errno.h>
 #include <xfuncs.h>

drivers/video/pxa.c

@@ -24,6 +24,7 @@
  */
 
 #include <common.h>
+#include <dma.h>
 #include <driver.h>
 #include <errno.h>
 #include <fb.h>
@@ -37,7 +38,6 @@
 #include <mach/pxafb.h>
 
 #include <asm/io.h>
-#include <asm/mmu.h>
 #include <asm-generic/div64.h>
 
 /* PXA LCD DMA descriptor */

include/dma.h

@@ -14,6 +14,8 @@
 #include <dma-dir.h>
 #include <asm/dma.h>
 
+#define DMA_ADDRESS_BROKEN	NULL
+
 #ifndef dma_alloc
 static inline void *dma_alloc(size_t size)
 {