Messages in this thread | | | Date | Sun, 5 Aug 2012 10:05:11 -0400 | From | Cyril Chemparathy <> | Subject | Re: [PATCH 03/22] ARM: LPAE: use phys_addr_t on virt <--> phys conversion |
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On 8/4/2012 2:24 AM, Nicolas Pitre wrote: > On Tue, 31 Jul 2012, Cyril Chemparathy wrote: > >> 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> > > Did you verify that this didn't introduce any compilation warning when > compiling for non LPAE? If so and there were no warnings then... >
Yes. This series has been tested on vanilla ARMv7 Cortex-A8 non-LPAE hardware as well.
> Acked-by: Nicolas Pitre <nico@linaro.org> > > >> --- >> 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 >>
-- Thanks - Cyril
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