diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2002-11-22 23:08:50 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2002-11-22 23:08:50 +0000 |
| commit | 93c78fad24fed6979660dabfd3a34607f8dd8032 (patch) | |
| tree | 5641bd1aa437f642dd761d2f17aefcef706be8fc /sys | |
| parent | 277ac738ec7e1e1a203752243cd518c895799000 (diff) | |
new sysctl: machdep.v8mul says whether the kernel replaced the mul/div/rem
stubs, so that userland can do the same. we cannot just determine based
on sun4m, because cypress (at least) is a sun4m cpu without the instructions
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/sparc/include/cpu.h | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/sparc/cpu.c | 4 | ||||
| -rw-r--r-- | sys/arch/sparc/sparc/machdep.c | 5 |
3 files changed, 11 insertions, 4 deletions
diff --git a/sys/arch/sparc/include/cpu.h b/sys/arch/sparc/include/cpu.h index c33a70c9581..13bd4e05c00 100644 --- a/sys/arch/sparc/include/cpu.h +++ b/sys/arch/sparc/include/cpu.h @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.h,v 1.18 2002/08/12 16:35:38 miod Exp $ */ +/* $OpenBSD: cpu.h,v 1.19 2002/11/22 23:08:46 deraadt Exp $ */ /* $NetBSD: cpu.h,v 1.24 1997/03/15 22:25:15 pk Exp $ */ /* @@ -54,13 +54,15 @@ #define CPU_LED_BLINK 1 /* int: twiddle the power LED */ /* 2 formerly int: vsyncblank */ #define CPU_CPUTYPE 3 /* int: cpu type */ -#define CPU_MAXID 4 /* 3 valid machdep IDs */ +#define CPU_V8MUL 4 +#define CPU_MAXID 5 /* 4 valid machdep IDs */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "led_blink", CTLTYPE_INT }, \ { 0, 0 }, \ { "cputype", CTLTYPE_INT }, \ + { "v8mul", CTLTYPE_INT }, \ } #ifdef _KERNEL diff --git a/sys/arch/sparc/sparc/cpu.c b/sys/arch/sparc/sparc/cpu.c index c32239bfdce..3dee51da295 100644 --- a/sys/arch/sparc/sparc/cpu.c +++ b/sys/arch/sparc/sparc/cpu.c @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.c,v 1.37 2002/03/14 01:26:44 millert Exp $ */ +/* $OpenBSD: cpu.c,v 1.38 2002/11/22 23:08:49 deraadt Exp $ */ /* $NetBSD: cpu.c,v 1.56 1997/09/15 20:52:36 pk Exp $ */ /* @@ -1339,6 +1339,7 @@ extern int _divreplace, _divreplace_end, _div; extern int _udivreplace, _udivreplace_end, _udiv; extern int _remreplace, _remreplace_end, _rem; extern int _uremreplace, _uremreplace_end, _urem; +int v8mul; /* flag whether cpu has hardware mul, div, and rem */ struct replace { void *from, *frome, *to; @@ -1366,4 +1367,5 @@ replacemul() bcopy(ireplace[i].from, ireplace[i].to, ireplace[i].frome - ireplace[i].from); splx(s); + v8mul = 1; } diff --git a/sys/arch/sparc/sparc/machdep.c b/sys/arch/sparc/sparc/machdep.c index 1dfa5bb15cb..ae1d4243e55 100644 --- a/sys/arch/sparc/sparc/machdep.c +++ b/sys/arch/sparc/sparc/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.88 2002/11/10 21:23:09 miod Exp $ */ +/* $OpenBSD: machdep.c,v 1.89 2002/11/22 23:08:49 deraadt Exp $ */ /* $NetBSD: machdep.c,v 1.85 1997/09/12 08:55:02 pk Exp $ */ /* @@ -466,6 +466,7 @@ cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) int oldval; #endif int ret; + extern int v8mul; /* all sysctl names are this level are terminal */ if (namelen != 1) @@ -500,6 +501,8 @@ cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) #endif case CPU_CPUTYPE: return (sysctl_rdint(oldp, oldlenp, newp, cputyp)); + case CPU_V8MUL: + return (sysctl_rdint(oldp, oldlenp, newp, v8mul)); default: return (EOPNOTSUPP); } |