32 lines
739 B
C
32 lines
739 B
C
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#include <linux/init.h>
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#include <linux/smp.h>
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#include <asm/cpufeature.h>
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#include <asm/processor.h>
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void __cpuinit early_init_centaur(struct cpuinfo_x86 *c)
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{
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if (c->x86 == 0x6 && c->x86_model >= 0xf)
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set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
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}
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void __cpuinit init_centaur(struct cpuinfo_x86 *c)
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{
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/* Cache sizes */
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unsigned n;
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n = c->extended_cpuid_level;
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if (n >= 0x80000008) {
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unsigned eax = cpuid_eax(0x80000008);
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c->x86_virt_bits = (eax >> 8) & 0xff;
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c->x86_phys_bits = eax & 0xff;
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}
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if (c->x86 == 0x6 && c->x86_model >= 0xf) {
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c->x86_cache_alignment = c->x86_clflush_size * 2;
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set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
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set_cpu_cap(c, X86_FEATURE_REP_GOOD);
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}
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set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
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}
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