[ARM] move MAX_DMA_ADDRESS to mach/memory.h

Move the definition of MAX_DMA_ADDRESS from mach/dma.h to mach/memory.h,
thereby placing it along side its relative, ISA_DMA_THRESHOLD.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h
index 75154b1931173adc897597c228e21972594583d8..6a4d44a5b45809ba3dfe39ae9feabdb6237bff8d 100644 (file)
--- a/arch/arm/include/asm/dma.h
+++ b/arch/arm/include/asm/dma.h
@@ -4,6 +4,7 @@
 typedef unsigned int dmach_t;
 
 #include <linux/spinlock.h>
+#include <asm/memory.h>
 #include <asm/system.h>
 #include <asm/scatterlist.h>
 #include <mach/dma.h>

diff --git a/arch/arm/mach-davinci/include/mach/dma.h b/arch/arm/mach-davinci/include/mach/dma.h
index 8e2f2d0ba667430f84ba6a9977c4985419177f96..cdf6ec9d46f3713cd6aa0e090555c836de001863 100644 (file)
--- a/arch/arm/mach-davinci/include/mach/dma.h
+++ b/arch/arm/mach-davinci/include/mach/dma.h
@@ -8,9 +8,3 @@
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */
-#ifndef __ASM_ARCH_DMA_H
-#define __ASM_ARCH_DMA_H
-
-#define MAX_DMA_ADDRESS                        0xffffffff
-
-#endif /* __ASM_ARCH_DMA_H */

diff --git a/arch/arm/mach-h720x/include/mach/dma.h b/arch/arm/mach-h720x/include/mach/dma.h
index 0a9d86ee84fe6cebcf5c189cee09b1179ac98a2f..2d7c77a9792a46c5d16a376ad2e1db6adba70cf8 100644 (file)
--- a/arch/arm/mach-h720x/include/mach/dma.h
+++ b/arch/arm/mach-h720x/include/mach/dma.h
@@ -8,13 +8,6 @@
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H
 
-/*
- * This is the maximum DMA address that can be DMAd to.
- * There should not be more than (0xd0000000 - 0xc0000000)
- * bytes of RAM.
- */
-#define MAX_DMA_ADDRESS                0xd0000000
-
 #if defined (CONFIG_CPU_H7201)
 #define MAX_DMA_CHANNELS       3
 #elif defined (CONFIG_CPU_H7202)

diff --git a/arch/arm/mach-h720x/include/mach/memory.h b/arch/arm/mach-h720x/include/mach/memory.h
index 83a2fa090e888b46fb837f6c178e6abeb2154943..8cfb665e04b1c82bf058f5a13e301c67318dfdd6 100644 (file)
--- a/arch/arm/mach-h720x/include/mach/memory.h
+++ b/arch/arm/mach-h720x/include/mach/memory.h
@@ -8,5 +8,14 @@
 #define __ASM_ARCH_MEMORY_H
 
 #define PHYS_OFFSET    UL(0x40000000)
+/*
+ * This is the maximum DMA address that can be DMAd to.
+ * There should not be more than (0xd0000000 - 0xc0000000)
+ * bytes of RAM.
+ *
+ * If you set this, you must also set ISA_DMA_THRESHOLD and setup a DMA
+ * zone if this does not cover all possible RAM.
+ */
+#define MAX_DMA_ADDRESS                0xd0000000
 
 #endif

diff --git a/arch/arm/mach-ixp4xx/include/mach/dma.h b/arch/arm/mach-ixp4xx/include/mach/dma.h
index 65944f252664a008a32884a2d6bff39224affa14..5b7e1a98e9872e3fe2391ffa6849ddc82054910b 100644 (file)
--- a/arch/arm/mach-ixp4xx/include/mach/dma.h
+++ b/arch/arm/mach-ixp4xx/include/mach/dma.h
@@ -8,12 +8,3 @@
  * published by the Free Software Foundation.
  *
  */
-#ifndef __ASM_ARCH_DMA_H
-#define __ASM_ARCH_DMA_H
-
-#include <asm/memory.h>
-#include <asm/sizes.h>
-
-#define MAX_DMA_ADDRESS                (PAGE_OFFSET + SZ_64M)
-
-#endif /* _ASM_ARCH_DMA_H */

diff --git a/arch/arm/mach-ixp4xx/include/mach/memory.h b/arch/arm/mach-ixp4xx/include/mach/memory.h
index 2e481db0ca58359eb4aba0319f2a3fb536ef5209..98f5e5e2098001398d45930d2fb5d33b3452f0ea 100644 (file)
--- a/arch/arm/mach-ixp4xx/include/mach/memory.h
+++ b/arch/arm/mach-ixp4xx/include/mach/memory.h
@@ -22,6 +22,7 @@ void ixp4xx_adjust_zones(int node, unsigned long *size, unsigned long *holes);
        ixp4xx_adjust_zones(node, size, holes)
 
 #define ISA_DMA_THRESHOLD (SZ_64M - 1)
+#define MAX_DMA_ADDRESS                (PAGE_OFFSET + SZ_64M)
 
 #endif
 

diff --git a/arch/arm/mach-l7200/include/mach/dma.h b/arch/arm/mach-l7200/include/mach/dma.h
index c7e48bd4590cbe099033e93ba87259958f5c146c..07731f2cccfb149d1f19e10eb654601f8d905a4d 100644 (file)
--- a/arch/arm/mach-l7200/include/mach/dma.h
+++ b/arch/arm/mach-l7200/include/mach/dma.h
@@ -11,13 +11,6 @@
 
 /* DMA is not yet implemented! It should be the same as acorn, copy over.. */
 
-/*
- * This is the maximum DMA address that can be DMAd to.
- * There should not be more than (0xd0000000 - 0xc0000000)
- * bytes of RAM.
- */
-#define MAX_DMA_ADDRESS         0xd0000000
-
 #define DMA_S0                  0
 
 #endif /* _ASM_ARCH_DMA_H */

diff --git a/arch/arm/mach-netx/include/mach/dma.h b/arch/arm/mach-netx/include/mach/dma.h
index 690b3ebc43acdcf460127c3c56437a8cef019f74..c0ac3d98a7bdca0e297a1bf33442743fd3d6e51e 100644 (file)
--- a/arch/arm/mach-netx/include/mach/dma.h
+++ b/arch/arm/mach-netx/include/mach/dma.h
@@ -18,4 +18,3 @@
  */
 
 #define MAX_DMA_CHANNELS 0
-#define MAX_DMA_ADDRESS ~0

diff --git a/arch/arm/mach-pnx4008/include/mach/dma.h b/arch/arm/mach-pnx4008/include/mach/dma.h
index 5442d04fc57536188103dbb1a98a707bbc9d8ca2..f094bf8bfb1819c96ecd43349091bc3fda182433 100644 (file)
--- a/arch/arm/mach-pnx4008/include/mach/dma.h
+++ b/arch/arm/mach-pnx4008/include/mach/dma.h
@@ -16,8 +16,6 @@
 
 #include "platform.h"
 
-#define MAX_DMA_ADDRESS                0xffffffff
-
 #define MAX_DMA_CHANNELS       8
 
 #define DMAC_BASE              IO_ADDRESS(PNX4008_DMA_CONFIG_BASE)

diff --git a/arch/arm/mach-rpc/include/mach/dma.h b/arch/arm/mach-rpc/include/mach/dma.h
index 360b56f8f29f10b87cd7183ba7ce7199acca0ca1..f0f8c9fb26bf9ee7660ccb1da0d9a817962cdc7f 100644 (file)
--- a/arch/arm/mach-rpc/include/mach/dma.h
+++ b/arch/arm/mach-rpc/include/mach/dma.h
@@ -10,12 +10,6 @@
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H
 
-/*
- * This is the maximum DMA address that can be DMAd to.
- * There should not be more than (0xd0000000 - 0xc0000000)
- * bytes of RAM.
- */
-#define MAX_DMA_ADDRESS                0xd0000000
 #define MAX_DMA_CHANNELS       8
 
 #define DMA_0                  0

diff --git a/arch/arm/mach-s3c2410/include/mach/dma.h b/arch/arm/mach-s3c2410/include/mach/dma.h
index 891b53cd69b86a6a3e543fd3f3a7a34a53471bc6..7cbea7b82b57c15cfdde271427690e7f6b91aab9 100644 (file)
--- a/arch/arm/mach-s3c2410/include/mach/dma.h
+++ b/arch/arm/mach-s3c2410/include/mach/dma.h
@@ -16,11 +16,6 @@
 #include <linux/sysdev.h>
 #include <mach/hardware.h>
 
-/*
- * This is the maximum DMA address(physical address) that can be DMAd to.
- *
- */
-#define MAX_DMA_ADDRESS                0x40000000
 #define MAX_DMA_TRANSFER_SIZE   0x100000 /* Data Unit is half word  */
 
 /* We use `virtual` dma channels to hide the fact we have only a limited

diff --git a/arch/arm/mach-s3c2410/include/mach/memory.h b/arch/arm/mach-s3c2410/include/mach/memory.h
index 6f1e5871ae4be02a8cfe130e3dd42cc4b7a26f91..2246966bbbe4e201a649ce4cb7e54c66b0e5e6ff 100644 (file)
--- a/arch/arm/mach-s3c2410/include/mach/memory.h
+++ b/arch/arm/mach-s3c2410/include/mach/memory.h
@@ -13,4 +13,12 @@
 
 #define PHYS_OFFSET    UL(0x30000000)
 
+/*
+ * This is the maximum DMA address(physical address) that can be DMAd to.
+ *  Err, no, this is a virtual address.  And you must set ISA_DMA_THRESHOLD
+ *  and setup a DMA zone if this restricts the amount of RAM which is
+ *  capable of DMA.
+ */
+#define MAX_DMA_ADDRESS                0x40000000
+
 #endif

diff --git a/arch/arm/mach-shark/include/mach/dma.h b/arch/arm/mach-shark/include/mach/dma.h
index c0a29bd2a74fba1fcb26cf182bb68978fd33855c..dfe1da0e5acaf13b2e8e82d3e77eb0e112821a23 100644 (file)
--- a/arch/arm/mach-shark/include/mach/dma.h
+++ b/arch/arm/mach-shark/include/mach/dma.h
@@ -10,7 +10,6 @@
  * The rest is not DMAable. See dev /  .properties
  * in OpenFirmware.
  */
-#define MAX_DMA_ADDRESS                0xC0400000
 #define MAX_DMA_CHANNELS       8
 #define DMA_ISA_CASCADE         4
 

diff --git a/arch/arm/mach-shark/include/mach/memory.h b/arch/arm/mach-shark/include/mach/memory.h
index d00c05eabd52fc476e3e493d945db27585710207..b497a5868b0654f7fdd4bb44267ddab2485ba381 100644 (file)
--- a/arch/arm/mach-shark/include/mach/memory.h
+++ b/arch/arm/mach-shark/include/mach/memory.h
@@ -33,6 +33,7 @@ static inline void __arch_adjust_zones(int node, unsigned long *zone_size, unsig
        __arch_adjust_zones(node, size, holes)
 
 #define ISA_DMA_THRESHOLD      (PHYS_OFFSET + SZ_4M - 1)
+#define MAX_DMA_ADDRESS                0xC0400000
 
 #endif