MMCR1_GRS_L2SEL_MSK   53 arch/powerpc/perf/power5+-pmu.c #define MMCR1_GRS_L2SEL_MSK	3
MMCR1_GRS_L2SEL_MSK   53 arch/powerpc/perf/power5-pmu.c #define MMCR1_GRS_L2SEL_MSK	3