diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2017-09-14 15:05:10 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-10-02 21:52:23 -0400 |
| commit | d1cbeafd5e5e43ec8869a6e5e0b6dd720e51252a (patch) | |
| tree | 5025fa133571fd89d4fac240e57c7ff5c18395df | |
| parent | e8645527b1c2f6d56fef04bc43d1e81ae1904fae (diff) | |
mips: Use asm-generic/io.h
Convert the mips architecture to make use of the new asm-generic/io.h to
provide address mapping functions. As mips actually performs
non-identity mapping between physical & virtual addresses we can't
simply make use of the generic functions, with the exception of being
able to drop our no-op unmap_physmem() and definitions of unused map
flags.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
| -rw-r--r-- | arch/mips/include/asm/io.h | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index ee7a59290d..45d7ca0cc6 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -95,6 +95,7 @@ static inline unsigned long virt_to_phys(volatile const void *address) #endif return CPHYSADDR(addr); } +#define virt_to_phys virt_to_phys /* * phys_to_virt - map physical address to virtual @@ -112,6 +113,7 @@ static inline void *phys_to_virt(unsigned long address) { return (void *)(address + PAGE_OFFSET - PHYS_OFFSET); } +#define phys_to_virt phys_to_virt /* * ISA I/O bus memory addresses are 1:1 with the physical address. @@ -490,10 +492,7 @@ static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int */ #define sync() mmiowb() -#define MAP_NOCACHE (1) -#define MAP_WRCOMBINE (0) -#define MAP_WRBACK (0) -#define MAP_WRTHROUGH (0) +#define MAP_NOCACHE 1 static inline void * map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) @@ -503,13 +502,7 @@ map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) return (void *)CKSEG0ADDR(paddr); } - -/* - * Take down a mapping set up by map_physmem(). - */ -static inline void unmap_physmem(void *vaddr, unsigned long flags) -{ -} +#define map_physmem map_physmem #define __BUILD_CLRBITS(bwlq, sfx, end, type) \ \ @@ -566,4 +559,6 @@ BUILD_CLRSETBITS(q, le64, le64, u64) BUILD_CLRSETBITS(q, be64, be64, u64) BUILD_CLRSETBITS(q, 64, _, u64) +#include <asm-generic/io.h> + #endif /* _ASM_IO_H */ |