redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

x86: clean up cpu capabilities in arch/x86/kernel/cpu/intel.c 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Ingo Molnar 2008-02-26 08:52:33 +01:00
parent 1d007cd5ae
commit d0e95ebdc5
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/x86/kernel/cpu/intel.c
View File

@ -143,12 +143,12 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
unsigned eax = cpuid_eax(10);
/* Check for version and the number of counters */
if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
set_bit(X86_FEATURE_ARCH_PERFMON, c->x86_capability);
set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
}
/* SEP CPUID bug: Pentium Pro reports SEP but doesn't have it until model 3 mask 3 */
if ((c->x86<<8 | c->x86_model<<4 | c->x86_mask) < 0x633)
clear_bit(X86_FEATURE_SEP, c->x86_capability);
clear_cpu_cap(c, X86_FEATURE_SEP);
/*
* Names for the Pentium II/Celeron processors
@ -209,19 +209,19 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
#endif
if (cpu_has_xmm2)
set_bit(X86_FEATURE_LFENCE_RDTSC, c->x86_capability);
set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
if (c->x86 == 15) {
set_bit(X86_FEATURE_P4, c->x86_capability);
set_cpu_cap(c, X86_FEATURE_P4);
}
if (c->x86 == 6)
set_bit(X86_FEATURE_P3, c->x86_capability);
set_cpu_cap(c, X86_FEATURE_P3);
if (cpu_has_ds) {
unsigned int l1;
rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
if (!(l1 & (1<<11)))
set_bit(X86_FEATURE_BTS, c->x86_capability);
set_cpu_cap(c, X86_FEATURE_BTS);
if (!(l1 & (1<<12)))
set_bit(X86_FEATURE_PEBS, c->x86_capability);
set_cpu_cap(c, X86_FEATURE_PEBS);
}
if (cpu_has_bts)