[PATCH 1/7] ARM: provide phys_to_page() to complement page_to_phys()
Russell King - ARM Linux
linux at arm.linux.org.uk
Fri Nov 20 13:01:00 EST 2009
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
arch/arm/include/asm/memory.h | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index cefedf0..e0f8f4a 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -134,6 +134,12 @@
#define __phys_to_pfn(paddr) ((paddr) >> PAGE_SHIFT)
#define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
+/*
+ * Convert a page to/from a physical address
+ */
+#define page_to_phys(page) (__pfn_to_phys(page_to_pfn(page)))
+#define phys_to_page(phys) (pfn_to_page(__phys_to_pfn(phys)))
+
#ifndef __ASSEMBLY__
/*
@@ -293,11 +299,6 @@ static inline __deprecated void *bus_to_virt(unsigned long x)
#endif /* !CONFIG_DISCONTIGMEM */
/*
- * For BIO. "will die". Kill me when bio_to_phys() and bvec_to_phys() die.
- */
-#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-
-/*
* Optional coherency support. Currently used only by selected
* Intel XSC3-based systems.
*/
--
1.6.2.5
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