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Under verbose mode, correctly report L2 cache information

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for CPU which supports CPUID function 8000_0006h.

Tested on: Pentum-M 750
This commit is contained in:
David Xu 2006-02-02 12:44:09 +00:00
parent ec4275eefa
commit 165ba65d7b
1 changed files with 7 additions and 1 deletions
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8
sys/i386/i386/identcpu.c
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@ -1233,6 +1233,7 @@ print_INTEL_info(void)
{
u_int regs[4];
u_int rounds, regnum;
u_int nwaycode, nway;
do_cpuid(0x2, regs);
@ -1266,8 +1267,13 @@ print_INTEL_info(void)
if (cpu_exthigh >= 0x80000006) {
do_cpuid(0x80000006, regs);
nwaycode = (regs[2] >> 12) & 0x0f;
if (nwaycode >= 0x02 && nwaycode <= 0x08)
nway = 1 << (nwaycode / 2);
else
nway = 0;
printf("\nL2 cache: %u kbytes, %u-way associative, %u bytes/line",
regs[2] & 0xffff, (regs[2] >> 16) & 0xff, regs[2] >> 24);
(regs[2] >> 16) & 0xffff, nway, regs[2] & 0xff);
}
printf("\n");