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Use FPU_XXXXX macro, x68k is now use this file.

This commit is contained in:
oki 1997-01-08 04:03:50 +00:00
parent 0e00922730
commit 0c47c09505
1 changed files with 11 additions and 51 deletions
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62
sys/arch/x68k/x68k/fpu.c
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@ -1,4 +1,4 @@
/* $NetBSD: fpu.c,v 1.4 1996/12/09 17:55:07 thorpej Exp $ */
/* $NetBSD: fpu.c,v 1.5 1997/01/08 04:03:50 oki Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@ -51,51 +51,9 @@
#include <machine/cpu.h>
#include <machine/frame.h>
extern int fpu_type;
extern int *nofault;
extern int matchbyname __P((struct device *, void *, void *));
static void fpu_attach __P((struct device *, struct device *, void *));
static int fpu_probe __P((void));
struct cfattach fpu_ca = {
sizeof(struct device), matchbyname, fpu_attach
};
struct cfdriver fpu_cd = {
NULL, "fpu", DV_DULL, 0
};
static char *fpu_descr[] = {
#ifdef FPU_EMULATE
"emulator", /* 0 */
#else
"no math support", /* 0 */
#endif
"mc68881", /* 1 */
"mc68882", /* 2 */
"mc68040", /* 3 */
"?" };
static void
fpu_attach(parent, self, args)
struct device *parent;
struct device *self;
void *args;
{
char *descr;
int enab_reg;
fpu_type = fpu_probe();
if ((0 <= fpu_type) && (fpu_type <= 2))
descr = fpu_descr[fpu_type];
else
descr = "unknown type";
printf(" (%s)\n", descr);
}
static int
int
fpu_probe()
{
/*
@ -109,7 +67,7 @@ fpu_probe()
nofault = (int *) &faultbuf;
if (setjmp(&faultbuf)) {
nofault = (int *) 0;
return(0);
return FPU_NONE;
}
/*
@ -123,11 +81,13 @@ fpu_probe()
nofault = (int *) 0;
/*
* Presumably, if we're an 040 and did not take exception
* Presumably, if we're an 040/060 and did not take exception
* above, we have an FPU. Don't bother probing.
*/
if (mmutype == MMU_68040) {
return 3;
if (cputype == CPU_68060) {
return FPU_68060;
} else if (cputype == CPU_68040) {
return FPU_68040;
}
/*
@ -149,11 +109,11 @@ fpu_probe()
* The size of a 68881 IDLE frame is 0x18
* and a 68882 frame is 0x38
*/
if (b == 0x18) return 1;
if (b == 0x38) return 2;
if (b == 0x18) return FPU_68881;
if (b == 0x38) return FPU_68882;
/*
* If it's not one of the above, we have no clue what it is.
*/
return 4;
return FPU_UNKNOWN;
}