On Thu, Nov 10, 2016 at 09:12:35AM -0600, Wei Huang wrote: > On 11/10/2016 03:10 AM, Marc Zyngier wrote: > > On 09/11/16 19:57, Wei Huang wrote: > >> diff --git a/arch/arm64/include/asm/perf_event.h b/arch/arm64/include/asm/perf_event.h > >> +/* > >> + * ARMv8 PMUv3 Performance Events handling code. > >> + * Common event types. > >> + */ > >> + > >> +/* Required events. */ > >> +#define ARMV8_PMUV3_PERFCTR_SW_INCR 0x00 > >> +#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL 0x03 > >> +#define ARMV8_PMUV3_PERFCTR_L1D_CACHE 0x04 > >> +#define ARMV8_PMUV3_PERFCTR_BR_MIS_PRED 0x10 > >> +#define ARMV8_PMUV3_PERFCTR_CPU_CYCLES 0x11 > >> +#define ARMV8_PMUV3_PERFCTR_BR_PRED 0x12 > > > > In my initial review, I asked for the "required" events to be moved to a > > shared location. What's the rational for moving absolutely everything? > > I did notice the phrase "required" in the original email. However I > think it is weird to have two places for a same set of PMU definitions. > Other developers might think these two are missing if they don't search > kernel files carefully. > > If Will Deacon and you insist, I can move only two defs to perf_event.h, > consolidated with the 2nd patch into a single one. FWIW, my personal preference would be for all the definitions (or at least all of the ARMV8_PMUV3_* ones) to be in one place. That said, I don't feel particularly strongly either way, and I'll defer to Will. Thanks, Mark. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
