X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=include%2Fasm-arm%2Fmemory.h;h=b4e1146ab682cf97fce022c83c8be81b1f02fc7e;hb=5466eb5d0ad5e9d4238da71a2a9bd216985a4849;hp=3e572364ee73c665dbc2fd21a34e33d076e6363b;hpb=97f2aab6698f3ab2552c41c1024a65ffd0763a6d;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index 3e572364ee7..b4e1146ab68 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -25,6 +25,7 @@
 #include <linux/config.h>
 #include <linux/compiler.h>
 #include <asm/arch/memory.h>
+#include <asm/sizes.h>
 
 #ifndef TASK_SIZE
 /*
@@ -47,6 +48,14 @@
 #define PAGE_OFFSET		UL(0xc0000000)
 #endif
 
+/*
+ * Size of DMA-consistent memory region.  Must be multiple of 2M,
+ * between 2MB and 14MB inclusive.
+ */
+#ifndef CONSISTENT_DMA_SIZE
+#define CONSISTENT_DMA_SIZE SZ_2M
+#endif
+
 /*
  * Physical vs virtual RAM address space conversion.  These are
  * private definitions which should NOT be used outside memory.h
@@ -57,6 +66,12 @@
 #define __phys_to_virt(x)	((x) - PHYS_OFFSET + PAGE_OFFSET)
 #endif
 
+/*
+ * Convert a physical address to a Page Frame Number and back
+ */
+#define	__phys_to_pfn(paddr)	((paddr) >> PAGE_SHIFT)
+#define	__pfn_to_phys(pfn)	((pfn) << PAGE_SHIFT)
+
 /*
  * The module space lives between the addresses given by TASK_SIZE
  * and PAGE_OFFSET - it must be within 32MB of the kernel text.