Date: Tue, 24 Apr 2012 13:37:44 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r234653 - head/sys/powerpc/include Message-ID: <201204241337.q3ODbiFi050778@svn.freebsd.org>
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Author: nwhitehorn Date: Tue Apr 24 13:37:43 2012 New Revision: 234653 URL: http://svn.freebsd.org/changeset/base/234653 Log: 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 Modified: head/sys/powerpc/include/pio.h Modified: head/sys/powerpc/include/pio.h ============================================================================== --- head/sys/powerpc/include/pio.h Tue Apr 24 13:36:41 2012 (r234652) +++ head/sys/powerpc/include/pio.h Tue Apr 24 13:37:43 2012 (r234653) @@ -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)
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