diff options
Diffstat (limited to 'include/asm-powerpc/io.h')
| -rw-r--r-- | include/asm-powerpc/io.h | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h index 36c4c34bf56..212428db0d8 100644 --- a/include/asm-powerpc/io.h +++ b/include/asm-powerpc/io.h @@ -19,6 +19,7 @@ extern int check_legacy_ioport(unsigned long base_port); #include <linux/compiler.h> #include <asm/page.h> #include <asm/byteorder.h> +#include <asm/paca.h> #ifdef CONFIG_PPC_ISERIES #include <asm/iseries/iseries_io.h> #endif @@ -162,7 +163,11 @@ extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns); extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl); extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, int nl); -#define mmiowb() +static inline void mmiowb(void) +{ + __asm__ __volatile__ ("sync" : : : "memory"); + get_paca()->io_sync = 0; +} /* * output pause versions need a delay at least for the @@ -278,22 +283,23 @@ static inline int in_8(const volatile unsigned char __iomem *addr) { int ret; - __asm__ __volatile__("lbz%U1%X1 %0,%1; twi 0,%0,0; isync" + __asm__ __volatile__("sync; lbz%U1%X1 %0,%1; twi 0,%0,0; isync" : "=r" (ret) : "m" (*addr)); return ret; } static inline void out_8(volatile unsigned char __iomem *addr, int val) { - __asm__ __volatile__("stb%U0%X0 %1,%0; sync" + __asm__ __volatile__("sync; stb%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); + get_paca()->io_sync = 1; } static inline int in_le16(const volatile unsigned short __iomem *addr) { int ret; - __asm__ __volatile__("lhbrx %0,0,%1; twi 0,%0,0; isync" + __asm__ __volatile__("sync; lhbrx %0,0,%1; twi 0,%0,0; isync" : "=r" (ret) : "r" (addr), "m" (*addr)); return ret; } @@ -302,28 +308,30 @@ static inline int in_be16(const volatile unsigned short __iomem *addr) { int ret; - __asm__ __volatile__("lhz%U1%X1 %0,%1; twi 0,%0,0; isync" + __asm__ __volatile__("sync; lhz%U1%X1 %0,%1; twi 0,%0,0; isync" : "=r" (ret) : "m" (*addr)); return ret; } static inline void out_le16(volatile unsigned short __iomem *addr, int val) { - __asm__ __volatile__("sthbrx %1,0,%2; sync" + __asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); + get_paca()->io_sync = 1; } static inline void out_be16(volatile unsigned short __iomem *addr, int val) { - __asm__ __volatile__("sth%U0%X0 %1,%0; sync" + __asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); + get_paca()->io_sync = 1; } static inline unsigned in_le32(const volatile unsigned __iomem *addr) { unsigned ret; - __asm__ __volatile__("lwbrx %0,0,%1; twi 0,%0,0; isync" + __asm__ __volatile__("sync; lwbrx %0,0,%1; twi 0,%0,0; isync" : "=r" (ret) : "r" (addr), "m" (*addr)); return ret; } @@ -332,21 +340,23 @@ static inline unsigned in_be32(const volatile unsigned __iomem *addr) { unsigned ret; - __asm__ __volatile__("lwz%U1%X1 %0,%1; twi 0,%0,0; isync" + __asm__ __volatile__("sync; lwz%U1%X1 %0,%1; twi 0,%0,0; isync" : "=r" (ret) : "m" (*addr)); return ret; } static inline void out_le32(volatile unsigned __iomem *addr, int val) { - __asm__ __volatile__("stwbrx %1,0,%2; sync" : "=m" (*addr) + __asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); + get_paca()->io_sync = 1; } static inline void out_be32(volatile unsigned __iomem *addr, int val) { - __asm__ __volatile__("stw%U0%X0 %1,%0; sync" + __asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); + get_paca()->io_sync = 1; } static inline unsigned long in_le64(const volatile unsigned long __iomem *addr) @@ -354,6 +364,7 @@ static inline unsigned long in_le64(const volatile unsigned long __iomem *addr) unsigned long tmp, ret; __asm__ __volatile__( + "sync\n" "ld %1,0(%2)\n" "twi 0,%1,0\n" "isync\n" @@ -372,7 +383,7 @@ static inline unsigned long in_be64(const volatile unsigned long __iomem *addr) { unsigned long ret; - __asm__ __volatile__("ld%U1%X1 %0,%1; twi 0,%0,0; isync" + __asm__ __volatile__("sync; ld%U1%X1 %0,%1; twi 0,%0,0; isync" : "=r" (ret) : "m" (*addr)); return ret; } @@ -389,14 +400,16 @@ static inline void out_le64(volatile unsigned long __iomem *addr, unsigned long "rldicl %1,%1,32,0\n" "rlwimi %0,%1,8,8,31\n" "rlwimi %0,%1,24,16,23\n" - "std %0,0(%3)\n" - "sync" + "sync\n" + "std %0,0(%3)" : "=&r" (tmp) , "=&r" (val) : "1" (val) , "b" (addr) , "m" (*addr)); + get_paca()->io_sync = 1; } static inline void out_be64(volatile unsigned long __iomem *addr, unsigned long val) { - __asm__ __volatile__("std%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val)); + __asm__ __volatile__("sync; std%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); + get_paca()->io_sync = 1; } #ifndef CONFIG_PPC_ISERIES |