diff options
Diffstat (limited to 'src/arch/x86/lib/cpu.c')
| -rw-r--r-- | src/arch/x86/lib/cpu.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/src/arch/x86/lib/cpu.c b/src/arch/x86/lib/cpu.c index 86b5cb0cd4..db7269510b 100644 --- a/src/arch/x86/lib/cpu.c +++ b/src/arch/x86/lib/cpu.c @@ -31,12 +31,6 @@ static inline int flag_is_changeable_p(uint32_t flag) return ((f1^f2) & flag) != 0; } -/* Probe for the CPUID instruction */ -int cpu_have_cpuid(void) -{ - return flag_is_changeable_p(X86_EFLAGS_ID); -} - /* * Cyrix CPUs without cpuid or with cpuid not yet enabled can be detected * by the fact that they preserve the flags across the division of 5/2. @@ -130,26 +124,6 @@ static const char *cpu_vendor_name(int vendor) return name; } -static int cpu_cpuid_extended_level(void) -{ - return cpuid_eax(0x80000000); -} - -#define CPUID_FEATURE_PAE (1 << 6) -#define CPUID_FEATURE_PSE36 (1 << 17) - -int cpu_phys_address_size(void) -{ - if (!(cpu_have_cpuid())) - return 32; - - if (cpu_cpuid_extended_level() >= 0x80000008) - return cpuid_eax(0x80000008) & 0xff; - - if (cpuid_edx(1) & (CPUID_FEATURE_PAE | CPUID_FEATURE_PSE36)) - return 36; - return 32; -} static void identify_cpu(struct device *cpu) { char vendor_name[16]; |