On 06/23/2014 09:12 PM, Alistair Francis wrote: > This is used to synchronise the PMCCNTR counter and swap its > state between enabled and disabled if required. It must always > be called twice, both before and after any logic that could > change the state of the PMCCNTR counter.
> diff --git a/target-arm/cpu.h b/target-arm/cpu.h > index 31aa09c..0984eda 100644 > --- a/target-arm/cpu.h > +++ b/target-arm/cpu.h > @@ -1051,6 +1051,17 @@ static inline bool cp_access_ok(int current_pl, > } > > /** > + * pmccntr_sync > + * @cpu: ARMCPU > + * > + * Syncronises the counter in the PMCCNTR. This must always be called twice, > + * once before any action that might effect the timer and again afterwards. > + * The fucntion is used to swap the state of the register if required. Nit: function -- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by the Linux Foundation.
