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https://github.com/torvalds/linux
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02dde8b45c
Impact: debuggability and micro-optimization Putting whatever is possible into the (final) .rodata section increases the likelihood of catching memory corruption bugs early, and reduces false cache line sharing. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <49B90961.76E4.0078.0@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
38 lines
904 B
C
38 lines
904 B
C
#ifndef ARCH_X86_CPU_H
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#define ARCH_X86_CPU_H
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struct cpu_model_info {
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int vendor;
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int family;
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const char *model_names[16];
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};
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/* attempt to consolidate cpu attributes */
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struct cpu_dev {
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const char * c_vendor;
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/* some have two possibilities for cpuid string */
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const char * c_ident[2];
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struct cpu_model_info c_models[4];
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void (*c_early_init)(struct cpuinfo_x86 *c);
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void (*c_init)(struct cpuinfo_x86 * c);
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void (*c_identify)(struct cpuinfo_x86 * c);
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unsigned int (*c_size_cache)(struct cpuinfo_x86 * c, unsigned int size);
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int c_x86_vendor;
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};
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#define cpu_dev_register(cpu_devX) \
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static const struct cpu_dev *const __cpu_dev_##cpu_devX __used \
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__attribute__((__section__(".x86_cpu_dev.init"))) = \
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&cpu_devX;
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extern const struct cpu_dev *const __x86_cpu_dev_start[],
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*const __x86_cpu_dev_end[];
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extern void display_cacheinfo(struct cpuinfo_x86 *c);
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#endif
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