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Initialize msr_read explicitly to avoid a hang, from FUKUMUTO Atsushi.

This commit is contained in:
xtraeme 2007-04-03 07:56:08 +00:00
parent b234edd83d
commit 02e5ad5584
1 changed files with 3 additions and 2 deletions
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5
sys/arch/x86/x86/powernow_k8.c
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@ -1,4 +1,4 @@
/* $NetBSD: powernow_k8.c,v 1.17 2007/03/24 15:35:15 xtraeme Exp $ */
/* $NetBSD: powernow_k8.c,v 1.18 2007/04/03 07:56:08 xtraeme Exp $ */
/* $OpenBSD: powernow-k8.c,v 1.8 2006/06/16 05:58:50 gwk Exp $ */
/*-
@ -66,7 +66,7 @@
/* AMD POWERNOW K8 driver */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: powernow_k8.c,v 1.17 2007/03/24 15:35:15 xtraeme Exp $");
__KERNEL_RCSID(0, "$NetBSD: powernow_k8.c,v 1.18 2007/04/03 07:56:08 xtraeme Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -86,6 +86,7 @@ __KERNEL_RCSID(0, "$NetBSD: powernow_k8.c,v 1.17 2007/03/24 15:35:15 xtraeme Exp
#include <machine/bus.h>
#define WRITE_FIDVID(fid, vid, ctrl) \
mcb.msr_read = false; \
mcb.msr_value = (((ctrl) << 32) | (1ULL << 16) | ((vid) << 8) | (fid)); \
mcb.msr_type = MSR_AMDK7_FIDVID_CTL; \
msr_cpu_broadcast(&mcb);