diff options
Diffstat (limited to 'arch/x86_64/kernel/setup.c')
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index a0e0c9ca8f1..754a05f9b4d 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -910,6 +910,10 @@ static int __init init_amd(struct cpuinfo_x86 *c) } display_cacheinfo(c); + /* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */ + if (c->x86_power & (1<<8)) + set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability); + if (c->extended_cpuid_level >= 0x80000008) { c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1; if (c->x86_max_cores & (c->x86_max_cores - 1)) @@ -1268,6 +1272,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) "ttp", /* thermal trip */ "tm", "stc" + "?", + "constant_tsc", }; |