lkml.org 
[lkml]   [2012]   [Jul]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 03/22] ARM: LPAE: use phys_addr_t on virt <--> phys conversion
Date
This patch fixes up the types used when converting back and forth between
physical and virtual addresses.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
---
arch/arm/include/asm/memory.h | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 01c710d..4a0108f 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -157,22 +157,27 @@ extern unsigned long __pv_phys_offset;

extern unsigned long __pv_offset;

-static inline unsigned long __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys(unsigned long x)
{
unsigned long t;
early_patch_imm8(x, t, "add", __pv_offset);
return t;
}

-static inline unsigned long __phys_to_virt(unsigned long x)
+static inline unsigned long __phys_to_virt(phys_addr_t x)
{
unsigned long t;
early_patch_imm8(x, t, "sub", __pv_offset);
return t;
}
#else
-#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET)
-#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
+
+#define __virt_to_phys(x) \
+ ((phys_addr_t)(x) - PAGE_OFFSET + PHYS_OFFSET)
+
+#define __phys_to_virt(x) \
+ ((unsigned long)((phys_addr_t)(x) - PHYS_OFFSET + PAGE_OFFSET))
+
#endif
#endif

@@ -207,14 +212,14 @@ static inline phys_addr_t virt_to_phys(const volatile void *x)

static inline void *phys_to_virt(phys_addr_t x)
{
- return (void *)(__phys_to_virt((unsigned long)(x)));
+ return (void *)__phys_to_virt(x);
}

/*
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
-#define __va(x) ((void *)__phys_to_virt((unsigned long)(x)))
+#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)

/*
--
1.7.9.5


\
 
 \ /
  Last update: 2012-08-01 06:41    [from the cache]
©2003-2011 Jasper Spaans