diff options
| author |   miod <miod@openbsd.org> | 2008-01-03 22:33:49 +0000 |
|---|---|---|
| committer | miod <miod@openbsd.org> | 2008-01-03 22:33:49 +0000 |
| commit | 0f6ab413fd3f542d16e63390de44288569f48136 (patch) | |
| tree | 2a4d76ac9731920ddb0646f5aa04b6f1b56ff767 | |
| parent | Enable wide transfers in the IOPB on wide busses, and get the IOPB passthrough (diff) | |
| download | wireguard-openbsd-0f6ab413fd3f542d16e63390de44288569f48136.tar.xz wireguard-openbsd-0f6ab413fd3f542d16e63390de44288569f48136.zip | |
Add an explicit clobber to prevent gcc from reordering instructions around
sparc_wrpr(), similar to the psl.h changes years ago; ok kettenis@
| -rw-r--r-- | sys/arch/sparc64/include/ctlreg.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/arch/sparc64/include/ctlreg.h b/sys/arch/sparc64/include/ctlreg.h index c8ea062cd3e..41e75f5d2a9 100644 --- a/sys/arch/sparc64/include/ctlreg.h +++ b/sys/arch/sparc64/include/ctlreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: ctlreg.h,v 1.13 2007/11/28 20:05:30 kettenis Exp $ */ +/* $OpenBSD: ctlreg.h,v 1.14 2008/01/03 22:33:49 miod Exp $ */ /* $NetBSD: ctlreg.h,v 1.28 2001/08/06 23:55:34 eeh Exp $ */ /* @@ -542,6 +542,7 @@ do { \ else \ __asm __volatile("wrpr %0, %1, %%" #name \ : : "r" (val), "rI" (xor) : "%g0"); \ + __asm __volatile("" : : : "memory"); \ } while(0) |