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Sync with sys/i386/isa/npx.c revision 1.56.

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This commit is contained in:
KATO Takenori 1998-02-13 09:32:50 +00:00
parent a7378a5844
commit 197ea5e1a0
1 changed files with 38 additions and 3 deletions
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41
sys/pc98/pc98/npx.c
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@ -32,7 +32,7 @@
* SUCH DAMAGE.
*
* from: @(#)npx.c 7.2 (Berkeley) 5/12/91
* $Id: npx.c,v 1.29 1997/11/19 11:36:24 kato Exp $
* $Id: npx.c,v 1.30 1998/01/31 07:23:16 eivind Exp $
*/
#include "npx.h"
@ -44,6 +44,7 @@
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <sys/conf.h>
#include <sys/proc.h>
@ -136,6 +137,8 @@ typedef u_char bool_t;
static int npxattach __P((struct isa_device *dvp));
static int npxprobe __P((struct isa_device *dvp));
static int npxprobe1 __P((struct isa_device *dvp));
static long timezero __P((const char *funcname,
void (*func)(void *buf, size_t len)));
struct isa_driver npxdriver = {
npxprobe, npxattach, "npx",
@ -449,8 +452,10 @@ npxattach(dvp)
}
npxinit(__INITIAL_NPXCW__);
#if defined(I586_CPU)
if (cpu_class == CPUCLASS_586 && npx_ex16) {
#ifdef I586_CPU
if (cpu_class == CPUCLASS_586 && npx_ex16 &&
timezero("i586_bzero()", i586_bzero) <
timezero("bzero()", bzero) * 4 / 5) {
if (!(dvp->id_flags & NPX_DISABLE_I586_OPTIMIZED_BCOPY)) {
bcopy_vector = i586_bcopy;
ovbcopy_vector = i586_bcopy;
@ -728,4 +733,34 @@ npxsave(addr)
#endif /* SMP */
}
#ifdef I586_CPU
static long
timezero(funcname, func)
const char *funcname;
void (*func) __P((void *buf, size_t len));
{
void *buf;
#define BUFSIZE 1000000
long usec;
struct timeval finish, start;
buf = malloc(BUFSIZE, M_TEMP, M_NOWAIT);
if (buf == NULL)
return (BUFSIZE);
microtime(&start);
(*func)(buf, BUFSIZE);
microtime(&finish);
usec = 1000000 * (finish.tv_sec - start.tv_sec) +
finish.tv_usec - start.tv_usec;
if (usec <= 0)
usec = 1;
if (bootverbose)
printf("%s bandwidth = %ld bytes/sec\n",
funcname, (long)(BUFSIZE * 1000000ll / usec));
free(buf, M_TEMP);
return (usec);
}
#endif /* I586_CPU */
#endif /* NNPX > 0 */