Re: [Qemu-arm] [PATCH v3 17/22] target/arm: Split arm_ccnt_enabled into generic pmu_counter_enabled

[Peter Maydell]

On 16 March 2018 at 20:31, Aaron Lindsay <address@hidden> wrote:
> Signed-off-by: Aaron Lindsay <address@hidden>
> Reviewed-by: Peter Maydell <address@hidden>
> ---
>  target/arm/helper.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/target/arm/helper.c b/target/arm/helper.c
> index f5e800e..2073d56 100644
> --- a/target/arm/helper.c
> +++ b/target/arm/helper.c
> @@ -1009,17 +1009,22 @@ static CPAccessResult pmreg_access_ccntr(CPUARMState 
> *env,
>      return pmreg_access(env, ri, isread);
>  }
>
> -static inline bool arm_ccnt_enabled(CPUARMState *env)
> +static inline bool pmu_counter_enabled(CPUARMState *env, uint8_t counter)
>  {
>      /* Does not check PMCCFILTR_EL0, which is handled by 
> pmu_counter_filtered */
> -
> -    if (!(env->cp15.c9_pmcr & PMCRE) || !(env->cp15.c9_pmcnten & (1 << 31))) 
> {
> +    if (!(env->cp15.c9_pmcr & PMCRE) ||
> +            !(env->cp15.c9_pmcnten & (1 << counter))) {
>          return false;
>      }
>
>      return true;
>  }
>
> +static inline bool arm_ccnt_enabled(CPUARMState *env)
> +{
> +    return pmu_counter_enabled(env, 31);
> +}

We only use arm_ccnt_enabled() in a couple of places, so
I would just make those callsites use pmu_counter_enabled(env, 31)
directly.

thanks
-- PMM