CPUID_FXSR 348 arch/i386/i386/cpu.c if (cpu_feature & CPUID_FXSR) { CPUID_FXSR 1005 arch/i386/i386/machdep.c { CPUID_FXSR, "FXSR" }, CPUID_FXSR 1853 arch/i386/i386/machdep.c if (cpu_feature & CPUID_FXSR) {