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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2012-04-24 13:37:43 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2012-04-24 13:37:43 +0000 |
| commit | 337d2f2292803bdbaab0250394ad681a3c599e5b (patch) | |
| tree | f95da1fabcfcc2bc1f55fb5a5d196e49ff1a6e4e /sys/powerpc/include | |
| parent | d5494b21d8777f15bcd6c25eb7badcf146b45713 (diff) | |
| download | FreeBSD-src-337d2f2292803bdbaab0250394ad681a3c599e5b.zip FreeBSD-src-337d2f2292803bdbaab0250394ad681a3c599e5b.tar.gz | |
Switch the default I/O memory barrier to eieio, as it should be. This
does not appear to cause any problems due to fixes elsewhere.
MFC after: 2 months
Diffstat (limited to 'sys/powerpc/include')
| -rw-r--r-- | sys/powerpc/include/pio.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/sys/powerpc/include/pio.h b/sys/powerpc/include/pio.h index b44c94c..0994ed1 100644 --- a/sys/powerpc/include/pio.h +++ b/sys/powerpc/include/pio.h @@ -39,11 +39,7 @@ * I/O macros. */ -/* - * Note: this should be eieio, but many drivers expect ordering with - * main storage too. - */ -#define powerpc_iomb() __asm __volatile("sync" : : : "memory") +#define powerpc_iomb() __asm __volatile("eieio" : : : "memory") static __inline void __outb(volatile u_int8_t *a, u_int8_t v) |
