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Code Issues Releases Activity

Flesh out identifycpu().

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This commit is contained in:
Doug Rabson 2001-09-18 13:26:30 +00:00
parent 13b21828a8
commit f0e4f240e7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=83611
1 changed files with 35 additions and 1 deletions
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36
sys/ia64/ia64/machdep.c
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@ -353,7 +353,41 @@ cpu_startup(dummy)
static void
identifycpu(void)
{
/* print cpu type & version */
char vendor[17];
u_int64_t t;
int number, revision, model, family, archrev;
u_int64_t features;
char familyname[20];
/*
* Assumes little-endian.
*/
*(u_int64_t *) &vendor[0] = ia64_get_cpuid(0);
*(u_int64_t *) &vendor[8] = ia64_get_cpuid(1);
vendor[16] = '\0';
t = ia64_get_cpuid(3);
number = (t >> 0) & 0xff;
revision = (t >> 8) & 0xff;
model = (t >> 16) & 0xff;
family = (t >> 24) & 0xff;
archrev = (t >> 32) & 0xff;
if (family == 0x7)
strcpy(familyname, "Itanium");
else if (family == 0x1f)
strcpy(familyname, "McKinley");
else
snprintf(familyname, sizeof(familyname), "Family=%d", family);
features = ia64_get_cpuid(4);
printf("CPU: %s\n", familyname);
printf(" Origin = \"%s\" Model = %d Revision = %d\n",
vendor, model, revision);
printf(" Features = 0x%b\n", (u_int32_t) features,
"\020"
"\001LB");
}
extern char kernel_text[], _end[];