PERF_REG_EXTENDED_MASK 56 arch/x86/include/uapi/asm/perf_regs.h #define PERF_REG_EXTENDED_MASK (~((1ULL << PERF_REG_X86_XMM0) - 1)) PERF_REG_EXTENDED_MASK 16 include/linux/perf_regs.h #define PERF_REG_EXTENDED_MASK 0 PERF_REG_EXTENDED_MASK 27 include/linux/perf_regs.h #define PERF_REG_EXTENDED_MASK 0 PERF_REG_EXTENDED_MASK 56 tools/arch/x86/include/uapi/asm/perf_regs.h #define PERF_REG_EXTENDED_MASK (~((1ULL << PERF_REG_X86_XMM0) - 1))