PM_LASTUNIT        38 arch/powerpc/perf/power5+-pmu.c #define PM_LASTUNIT	0xc
PM_LASTUNIT        38 arch/powerpc/perf/power5-pmu.c #define PM_LASTUNIT	0xc
PM_LASTUNIT        36 arch/powerpc/perf/ppc970-pmu.c #define PM_LASTUNIT	9