PERF_REG_CSKY_PC   15 tools/perf/arch/csky/include/perf_regs.h #define PERF_REG_IP	PERF_REG_CSKY_PC
PERF_REG_CSKY_PC   53 tools/perf/arch/csky/include/perf_regs.h 	case PERF_REG_CSKY_PC: