MAX_HWEVENTS       30 arch/alpha/kernel/perf_event.c #define MAX_HWEVENTS 3
MAX_HWEVENTS       12 arch/powerpc/include/asm/perf_event_fsl_emb.h #define MAX_HWEVENTS 6
MAX_HWEVENTS       14 arch/powerpc/include/asm/perf_event_server.h #define MAX_HWEVENTS		8
MAX_HWEVENTS        7 arch/sh/include/asm/perf_event.h #define MAX_HWEVENTS	2
MAX_HWEVENTS       70 arch/sparc/kernel/perf_event.c #define MAX_HWEVENTS			4