Messages in this thread Patch in this message | | | From | Cyril Chemparathy <> | Subject | [RFC 03/23] ARM: LPAE: use phys_addr_t on virt <--> phys conversion | Date | Mon, 23 Jul 2012 21:09:05 -0400 |
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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 fcb5757..7629dfe 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -169,22 +169,27 @@ extern unsigned long __pv_phys_offset; : "=r" (to) \ : "r" (from), "I" (type)) -static inline unsigned long __virt_to_phys(unsigned long x) +static inline phys_addr_t __virt_to_phys(unsigned long x) { unsigned long t; __pv_stub(x, t, "add", __PV_BITS_31_24); 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; __pv_stub(x, t, "sub", __PV_BITS_31_24); 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 @@ -219,14 +224,14 @@ 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
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