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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-16 15:33:40 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-18 16:56:17 +0300 |
| commit | a0e102914aa3f619a5bc68a0d33e17d1788cdf4c (patch) | |
| tree | 9f45e147d68b15599bf5c448ababc59b6cc35408 /arch/powerpc/include/asm/io.h | |
| parent | 23ad1a2700725d46ee7760920974c68be81ab82d (diff) | |
| download | linux-a0e102914aa3f619a5bc68a0d33e17d1788cdf4c.tar.xz | |
powerpc/io: remove old GCC version implementation
GCC 4.6 is the minimum supported now.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/io.h')
| -rw-r--r-- | arch/powerpc/include/asm/io.h | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 0a034519957d..3ef40b703c4a 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -111,25 +111,6 @@ extern bool isa_io_special; #define IO_SET_SYNC_FLAG() #endif -/* gcc 4.0 and older doesn't have 'Z' constraint */ -#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 0) -#define DEF_MMIO_IN_X(name, size, insn) \ -static inline u##size name(const volatile u##size __iomem *addr) \ -{ \ - u##size ret; \ - __asm__ __volatile__("sync;"#insn" %0,0,%1;twi 0,%0,0;isync" \ - : "=r" (ret) : "r" (addr), "m" (*addr) : "memory"); \ - return ret; \ -} - -#define DEF_MMIO_OUT_X(name, size, insn) \ -static inline void name(volatile u##size __iomem *addr, u##size val) \ -{ \ - __asm__ __volatile__("sync;"#insn" %1,0,%2" \ - : "=m" (*addr) : "r" (val), "r" (addr) : "memory"); \ - IO_SET_SYNC_FLAG(); \ -} -#else /* newer gcc */ #define DEF_MMIO_IN_X(name, size, insn) \ static inline u##size name(const volatile u##size __iomem *addr) \ { \ @@ -146,7 +127,6 @@ static inline void name(volatile u##size __iomem *addr, u##size val) \ : "=Z" (*addr) : "r" (val) : "memory"); \ IO_SET_SYNC_FLAG(); \ } -#endif #define DEF_MMIO_IN_D(name, size, insn) \ static inline u##size name(const volatile u##size __iomem *addr) \ |