diff options
| author | Ingo Molnar <mingo@kernel.org> | 2014-01-12 14:12:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-01-12 14:12:44 +0100 |
| commit | dba861461f88c12249ac78fb877866c04f99deb3 (patch) | |
| tree | 5812b143581bcc66c7c542f01ba0cb22e489b8e5 /arch/arm/include/asm/memory.h | |
| parent | 0e6601eee039893a3f6420596ae4588d90d13cbe (diff) | |
| parent | 228fdc083b017eaf90e578fa86fb1ecfd5ffae87 (diff) | |
Merge branch 'linus' into timers/core
Pick up the latest fixes and refresh the branch.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm/include/asm/memory.h')
| -rw-r--r-- | arch/arm/include/asm/memory.h | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 9ecccc86504..8756e4bcdba 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -100,23 +100,19 @@ #define TASK_UNMAPPED_BASE UL(0x00000000) #endif -#ifndef PHYS_OFFSET -#define PHYS_OFFSET UL(CONFIG_DRAM_BASE) -#endif - #ifndef END_MEM #define END_MEM (UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE) #endif #ifndef PAGE_OFFSET -#define PAGE_OFFSET (PHYS_OFFSET) +#define PAGE_OFFSET PLAT_PHYS_OFFSET #endif /* * The module can be at any place in ram in nommu mode. */ #define MODULES_END (END_MEM) -#define MODULES_VADDR (PHYS_OFFSET) +#define MODULES_VADDR PAGE_OFFSET #define XIP_VIRT_ADDR(physaddr) (physaddr) @@ -157,6 +153,16 @@ #endif #define ARCH_PGD_MASK ((1 << ARCH_PGD_SHIFT) - 1) +/* + * PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical + * memory. This is used for XIP and NoMMU kernels, or by kernels which + * have their own mach/memory.h. Assembly code must always use + * PLAT_PHYS_OFFSET and not PHYS_OFFSET. + */ +#ifndef PLAT_PHYS_OFFSET +#define PLAT_PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) +#endif + #ifndef __ASSEMBLY__ /* @@ -239,6 +245,8 @@ static inline unsigned long __phys_to_virt(phys_addr_t x) #else +#define PHYS_OFFSET PLAT_PHYS_OFFSET + static inline phys_addr_t __virt_to_phys(unsigned long x) { return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET; @@ -251,17 +259,6 @@ static inline unsigned long __phys_to_virt(phys_addr_t x) #endif #endif -#endif /* __ASSEMBLY__ */ - -#ifndef PHYS_OFFSET -#ifdef PLAT_PHYS_OFFSET -#define PHYS_OFFSET PLAT_PHYS_OFFSET -#else -#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) -#endif -#endif - -#ifndef __ASSEMBLY__ /* * PFNs are used to describe any physical page; this means @@ -350,7 +347,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #define ARCH_PFN_OFFSET PHYS_PFN_OFFSET #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) +#define virt_addr_valid(kaddr) (((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) \ + && pfn_valid(__pa(kaddr) >> PAGE_SHIFT) ) #endif |