Define new MIB variable, hw.floatingpoint, which is true if FP hardware
is present, and false if an emulator is being used.
This commit is contained in:
wollman
parent
7ae6d81d71
commit
7ae0ceacbd
@ -32,7 +32,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)npx.c 7.2 (Berkeley) 5/12/91
|
||||
* $Id: npx.c,v 1.9 1994/06/11 05:17:15 davidg Exp $
|
||||
* $Id: npx.c,v 1.10 1994/08/13 03:50:11 wollman Exp $
|
||||
*/
|
||||
|
||||
#include "npx.h"
|
||||
@ -119,6 +119,7 @@ struct proc *npxproc;
|
||||
|
||||
static bool_t npx_ex16;
|
||||
static bool_t npx_exists;
|
||||
int hw_float;
|
||||
static struct gate_descriptor npx_idt_probeintr;
|
||||
static int npx_intrno;
|
||||
static volatile u_int npx_intrs_while_probing;
|
||||
@ -266,7 +267,7 @@ npxprobe1(dvp)
|
||||
control = 0x5a5a;
|
||||
fnstcw(&control);
|
||||
if ((control & 0x1f3f) == 0x033f) {
|
||||
npx_exists = 1;
|
||||
hw_float = npx_exists = 1;
|
||||
/*
|
||||
* We have an npx, now divide by 0 to see if exception
|
||||
* 16 works.
|
||||
@ -323,7 +324,7 @@ npxattach(dvp)
|
||||
if (!npx_ex16 && !npx_irq13) {
|
||||
if (npx_exists) {
|
||||
printf("npx%d: Error reporting broken, using 387 emulator\n",dvp->id_unit);
|
||||
npx_exists = 0;
|
||||
hw_float = npx_exists = 0;
|
||||
} else {
|
||||
printf("npx%d: 387 Emulator\n",dvp->id_unit);
|
||||
}
|
||||
|
||||
@ -32,7 +32,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)npx.c 7.2 (Berkeley) 5/12/91
|
||||
* $Id: npx.c,v 1.9 1994/06/11 05:17:15 davidg Exp $
|
||||
* $Id: npx.c,v 1.10 1994/08/13 03:50:11 wollman Exp $
|
||||
*/
|
||||
|
||||
#include "npx.h"
|
||||
@ -119,6 +119,7 @@ struct proc *npxproc;
|
||||
|
||||
static bool_t npx_ex16;
|
||||
static bool_t npx_exists;
|
||||
int hw_float;
|
||||
static struct gate_descriptor npx_idt_probeintr;
|
||||
static int npx_intrno;
|
||||
static volatile u_int npx_intrs_while_probing;
|
||||
@ -266,7 +267,7 @@ npxprobe1(dvp)
|
||||
control = 0x5a5a;
|
||||
fnstcw(&control);
|
||||
if ((control & 0x1f3f) == 0x033f) {
|
||||
npx_exists = 1;
|
||||
hw_float = npx_exists = 1;
|
||||
/*
|
||||
* We have an npx, now divide by 0 to see if exception
|
||||
* 16 works.
|
||||
@ -323,7 +324,7 @@ npxattach(dvp)
|
||||
if (!npx_ex16 && !npx_irq13) {
|
||||
if (npx_exists) {
|
||||
printf("npx%d: Error reporting broken, using 387 emulator\n",dvp->id_unit);
|
||||
npx_exists = 0;
|
||||
hw_float = npx_exists = 0;
|
||||
} else {
|
||||
printf("npx%d: 387 Emulator\n",dvp->id_unit);
|
||||
}
|
||||
|
||||
@ -32,7 +32,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)npx.c 7.2 (Berkeley) 5/12/91
|
||||
* $Id: npx.c,v 1.9 1994/06/11 05:17:15 davidg Exp $
|
||||
* $Id: npx.c,v 1.10 1994/08/13 03:50:11 wollman Exp $
|
||||
*/
|
||||
|
||||
#include "npx.h"
|
||||
@ -119,6 +119,7 @@ struct proc *npxproc;
|
||||
|
||||
static bool_t npx_ex16;
|
||||
static bool_t npx_exists;
|
||||
int hw_float;
|
||||
static struct gate_descriptor npx_idt_probeintr;
|
||||
static int npx_intrno;
|
||||
static volatile u_int npx_intrs_while_probing;
|
||||
@ -266,7 +267,7 @@ npxprobe1(dvp)
|
||||
control = 0x5a5a;
|
||||
fnstcw(&control);
|
||||
if ((control & 0x1f3f) == 0x033f) {
|
||||
npx_exists = 1;
|
||||
hw_float = npx_exists = 1;
|
||||
/*
|
||||
* We have an npx, now divide by 0 to see if exception
|
||||
* 16 works.
|
||||
@ -323,7 +324,7 @@ npxattach(dvp)
|
||||
if (!npx_ex16 && !npx_irq13) {
|
||||
if (npx_exists) {
|
||||
printf("npx%d: Error reporting broken, using 387 emulator\n",dvp->id_unit);
|
||||
npx_exists = 0;
|
||||
hw_float = npx_exists = 0;
|
||||
} else {
|
||||
printf("npx%d: 387 Emulator\n",dvp->id_unit);
|
||||
}
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
|
||||
* $Id: kern_sysctl.c,v 1.7 1994/08/10 06:25:02 wollman Exp $
|
||||
* $Id: kern_sysctl.c,v 1.8 1994/08/18 22:35:04 wollman Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -309,6 +309,7 @@ hw_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
|
||||
struct proc *p;
|
||||
{
|
||||
extern char machine[], cpu_model[];
|
||||
extern int hw_float;
|
||||
|
||||
/* all sysctl names at this level are terminal */
|
||||
if (namelen != 1)
|
||||
@ -330,6 +331,8 @@ hw_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
|
||||
ctob(physmem - cnt.v_wire_count)));
|
||||
case HW_PAGESIZE:
|
||||
return (sysctl_rdint(oldp, oldlenp, newp, PAGE_SIZE));
|
||||
case HW_FLOATINGPT:
|
||||
return (sysctl_rdint(oldp, oldlenp, newp, hw_float));
|
||||
default:
|
||||
return (EOPNOTSUPP);
|
||||
}
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)sysctl.h 8.1 (Berkeley) 6/2/93
|
||||
* $Id: sysctl.h,v 1.4 1994/08/08 15:41:08 wollman Exp $
|
||||
* $Id: sysctl.h,v 1.5 1994/08/10 06:25:07 wollman Exp $
|
||||
*/
|
||||
|
||||
#ifndef _SYS_SYSCTL_H_
|
||||
@ -224,7 +224,8 @@ struct kinfo_proc {
|
||||
#define HW_PAGESIZE 7 /* int: software page size */
|
||||
#define HW_DISKNAMES 8 /* strings: disk drive names */
|
||||
#define HW_DISKSTATS 9 /* struct: diskstats[] */
|
||||
#define HW_MAXID 10 /* number of valid hw ids */
|
||||
#define HW_FLOATINGPT 10 /* int: has HW floating point? */
|
||||
#define HW_MAXID 11 /* number of valid hw ids */
|
||||
|
||||
#define CTL_HW_NAMES { \
|
||||
{ 0, 0 }, \
|
||||
@ -237,6 +238,7 @@ struct kinfo_proc {
|
||||
{ "pagesize", CTLTYPE_INT }, \
|
||||
{ "disknames", CTLTYPE_STRUCT }, \
|
||||
{ "diskstats", CTLTYPE_STRUCT }, \
|
||||
{ "floatingpoint", CTLTYPE_INT }, \
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user