Module Name: src Committed By: cherry Date: Mon Mar 7 02:24:57 UTC 2011
Modified Files: src/sys/arch/amd64/amd64: fpu.c Log Message: Use macros clts/stts instead of directly manipulating CR0 flags. Expose fpuinit to XEN build. (remove #ifdef XEN) To generate a diff of this commit: cvs rdiff -u -r1.33 -r1.34 src/sys/arch/amd64/amd64/fpu.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/amd64/amd64/fpu.c diff -u src/sys/arch/amd64/amd64/fpu.c:1.33 src/sys/arch/amd64/amd64/fpu.c:1.34 --- src/sys/arch/amd64/amd64/fpu.c:1.33 Mon Dec 20 00:25:24 2010 +++ src/sys/arch/amd64/amd64/fpu.c Mon Mar 7 02:24:57 2011 @@ -1,4 +1,4 @@ -/* $NetBSD: fpu.c,v 1.33 2010/12/20 00:25:24 matt Exp $ */ +/* $NetBSD: fpu.c,v 1.34 2011/03/07 02:24:57 cherry Exp $ */ /*- * Copyright (c) 2008 The NetBSD Foundation, Inc. All @@ -100,7 +100,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.33 2010/12/20 00:25:24 matt Exp $"); +__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.34 2011/03/07 02:24:57 cherry Exp $"); #include "opt_multiprocessor.h" @@ -155,18 +155,16 @@ void fpudna(struct cpu_info *); static int x86fpflags_to_ksiginfo(uint32_t); -#ifndef XEN /* * Init the FPU. */ void fpuinit(struct cpu_info *ci) { - lcr0(rcr0() & ~(CR0_EM|CR0_TS)); + clts(); fninit(); - lcr0(rcr0() | (CR0_TS)); + stts(); } -#endif /* * Record the FPU state and reinitialize it all except for the control word.