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-rw-r--r--include/asm-powerpc/io.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 3baff8b0fd5..c2c5f14b5f5 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -163,8 +163,11 @@ extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count);
static inline void mmiowb(void)
{
- __asm__ __volatile__ ("sync" : : : "memory");
- get_paca()->io_sync = 0;
+ unsigned long tmp;
+
+ __asm__ __volatile__("sync; li %0,0; stb %0,%1(13)"
+ : "=&r" (tmp) : "i" (offsetof(struct paca_struct, io_sync))
+ : "memory");
}
/*