Messages in this thread Patch in this message | | | From | Cyril Chemparathy <> | Subject | [PATCH v3 RESEND 04/17] ARM: LPAE: use phys_addr_t on virt <--> phys conversion | Date | Fri, 21 Sep 2012 11:56:02 -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> Reviewed-by: Nicolas Pitre <nico@linaro.org> --- arch/arm/include/asm/memory.h | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index c88d98c..88ca206 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -157,22 +157,32 @@ extern unsigned long __pv_offset; extern unsigned long __pv_phys_offset; #define PHYS_OFFSET __virt_to_phys(PAGE_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("add", t, x, __pv_offset, 0); 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("sub", t, x, __pv_offset, 0); + unsigned long t, xlo = x; + early_patch_imm8("sub", t, xlo, __pv_offset, 0); return t; } + #else -#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET) -#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET) + +static inline phys_addr_t __virt_to_phys(unsigned long x) +{ + return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET; +} + +static inline unsigned long __phys_to_virt(phys_addr_t x) +{ + return x - PHYS_OFFSET + PAGE_OFFSET; +} + #endif #endif #endif /* __ASSEMBLY__ */ @@ -210,14 +220,14 @@ 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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