PERF_REG_X86_64_MAX   32 arch/x86/include/uapi/asm/perf_regs.h 	PERF_REG_X86_64_MAX = PERF_REG_X86_R15 + 1,
PERF_REG_X86_64_MAX   32 tools/arch/x86/include/uapi/asm/perf_regs.h 	PERF_REG_X86_64_MAX = PERF_REG_X86_R15 + 1,