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| author | phk <phk@FreeBSD.org> | 2007-04-18 10:08:24 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 2007-04-18 10:08:24 +0000 |
| commit | a3b237c6c1d5d84ac72df0cae66f3a0bec0f07a3 (patch) | |
| tree | 585511ce23da29c205170713cb57a96490805a51 /sys/i386 | |
| parent | 0e40cc602a84ada7b0d048a17e1a6258b38cd966 (diff) | |
| download | FreeBSD-src-a3b237c6c1d5d84ac72df0cae66f3a0bec0f07a3.zip FreeBSD-src-a3b237c6c1d5d84ac72df0cae66f3a0bec0f07a3.tar.gz | |
On AMD's Geode LX: Force the TSC to run through core-suspension so we can
use it as a timecounter.
Sponsored by: Soekris Engineering
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/i386/identcpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/i386/i386/identcpu.c b/sys/i386/i386/identcpu.c index 48c8b47..20ca56a 100644 --- a/sys/i386/i386/identcpu.c +++ b/sys/i386/i386/identcpu.c @@ -386,6 +386,14 @@ printcpuinfo(void) case 0x590: strcat(cpu_model, "K6-III"); break; + case 0x5a0: + strcat(cpu_model, "Geode LX"); + /* + * Make sure the TSC runs through suspension, + * otherwise we can't use it as timecounter + */ + wrmsr(0x1900, rdmsr(0x1900) | 0x20ULL); + break; default: strcat(cpu_model, "Unknown"); break; |
