Author: jkim
Date: Thu Mar 10 22:20:11 2011
New Revision: 219467
URL: http://svn.freebsd.org/changeset/base/219467
Log:
Detect NSC/AMD Geode SC1100 properly, not just Stepping 0. Although it is
unclear that "TSC stops ticking with HLT instruction" problem is present
with other steppings, it is limited to Stepping 0 for now.
Modified:
head/sys/i386/i386/identcpu.c
Modified: head/sys/i386/i386/identcpu.c
==============================================================================
--- head/sys/i386/i386/identcpu.c Thu Mar 10 21:56:31 2011
(r219466)
+++ head/sys/i386/i386/identcpu.c Thu Mar 10 22:20:11 2011
(r219467)
@@ -603,11 +603,12 @@ printcpuinfo(void)
} else if (cpu_vendor_id == CPU_VENDOR_IBM) {
strcpy(cpu_model, "Blue Lightning CPU");
} else if (cpu_vendor_id == CPU_VENDOR_NSC) {
- switch (cpu_id & 0xfff) {
+ switch (cpu_id & 0xff0) {
case 0x540:
strcpy(cpu_model, "Geode SC1100");
cpu = CPU_GEODE1100;
- tsc_freq = 0;
+ if ((cpu_id & CPUID_STEPPING) == 0)
+ tsc_freq = 0;
break;
default:
strcpy(cpu_model, "Geode/NSC unknown");
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