diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1999-11-27 04:22:09 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1999-11-27 04:22:09 +0000 |
| commit | 9e8fa8aa66615d8fc37a631718f7b0ef7aa257cc (patch) | |
| tree | 9dc7e63972d5bb45525c910fcc7a576416a15c4d /sys/arch/i386 | |
| parent | eaac84c72732319f83ed5960047de8e79ce96452 (diff) | |
Winchip c6 TSC is broken; wd@ics.nara-wu.ac.jp
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/i386/machdep.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c index f6227e677da..15ccc2d711a 100644 --- a/sys/arch/i386/i386/machdep.c +++ b/sys/arch/i386/i386/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.119 1999/11/01 20:51:11 deraadt Exp $ */ +/* $OpenBSD: machdep.c,v 1.120 1999/11/27 04:22:08 deraadt Exp $ */ /* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */ /*- @@ -267,6 +267,7 @@ int allowaperture = 0; #endif #endif +void winchip_cpu_setup __P((const char *, int, int)); void cyrix6x86_cpu_setup __P((const char *, int, int)); void intel586_cpu_setup __P((const char *, int, int)); void intel686_cpu_setup __P((const char *, int, int)); @@ -816,7 +817,7 @@ struct cpu_cpuid_nameclass i386_cpuid_cpus[] = { "WinChip 2", "WinChip 3", 0, 0, 0, 0, 0, 0, "WinChip" /* Default */ }, - NULL + winchip_cpu_setup }, /* Family 6, not yet available from IDT */ { @@ -893,6 +894,23 @@ struct cpu_cpuid_feature i386_cpuid_features[] = { }; void +winchip_cpu_setup(cpu_device, model, step) + const char *cpu_device; + int model, step; +{ +#if defined(I586_CPU) + extern int cpu_feature; + + switch (model) { + case 4: /* WinChip C6 */ + cpu_feature &= ~CPUID_TSC; + printf("%s: broken TSC disabled\n", cpu_device); + break; + } +#endif +} + +void cyrix6x86_cpu_setup(cpu_device, model, step) const char *cpu_device; int model, step; |