Skip to content

Commit

Permalink
x86: cpu/common.c: merge get_cpu_cap()
Browse files Browse the repository at this point in the history
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
  • Loading branch information
Yinghai Lu authored and Ingo Molnar committed Sep 5, 2008
1 parent 1cd7877 commit 5122c89
Show file tree
Hide file tree
Showing 2 changed files with 22 additions and 0 deletions.
20 changes: 20 additions & 0 deletions arch/x86/kernel/cpu/common.c
Original file line number Diff line number Diff line change
Expand Up @@ -458,6 +458,26 @@ static void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c)
c->x86_capability[6] = cpuid_ecx(0x80000001);
}
}

#ifdef CONFIG_X86_64
/* Transmeta-defined flags: level 0x80860001 */
xlvl = cpuid_eax(0x80860000);
if ((xlvl & 0xffff0000) == 0x80860000) {
/* Don't set x86_cpuid_level here for now to not confuse. */
if (xlvl >= 0x80860001)
c->x86_capability[2] = cpuid_edx(0x80860001);
}

if (c->extended_cpuid_level >= 0x80000007)
c->x86_power = cpuid_edx(0x80000007);

if (c->extended_cpuid_level >= 0x80000008) {
u32 eax = cpuid_eax(0x80000008);

c->x86_virt_bits = (eax >> 8) & 0xff;
c->x86_phys_bits = eax & 0xff;
}
#endif
}
/*
* Do minimum CPU detection early.
Expand Down
2 changes: 2 additions & 0 deletions arch/x86/kernel/cpu/common_64.c
Original file line number Diff line number Diff line change
Expand Up @@ -461,6 +461,7 @@ static void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c)
}
}

#ifdef CONFIG_X86_64
/* Transmeta-defined flags: level 0x80860001 */
xlvl = cpuid_eax(0x80860000);
if ((xlvl & 0xffff0000) == 0x80860000) {
Expand All @@ -478,6 +479,7 @@ static void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c)
c->x86_virt_bits = (eax >> 8) & 0xff;
c->x86_phys_bits = eax & 0xff;
}
#endif
}

/* Do some early cpuid on the boot CPU to get some parameter that are
Expand Down

0 comments on commit 5122c89

Please sign in to comment.