On Fri, 2016-03-18 at 15:04 +1100, Michael Neuling wrote:
>
> static int nr_chips;
> +static DEFINE_PER_CPU(unsigned int, chip_id);
>
> /*
> * Note: The set of pstates consists of contiguous integers, the
> @@ -317,9 +318,7 @@ static void powernv_cpufreq_throttle_check(void
> *data)
>
> pmsr = get_pmspr(SPRN_PMSR);
>
> - for (i = 0; i < nr_chips; i++)
> - if (chips[i].id == cpu_to_chip_id(cpu))
> - break;
> + i = this_cpu_read(chip_id);
Except it's not a chip_id, so your patch confused me for a good 2mn ...
Call it chip_idx maybe ? ie, index.
Cheers,
Ben.
> /* Check for Pmax Capping */
> pmsr_pmax = (s8)PMSR_MAX(pmsr);
> @@ -560,6 +559,7 @@ static int init_chip_info(void)
> for_each_possible_cpu(cpu) {
> unsigned int id = cpu_to_chip_id(cpu);
>
> + per_cpu(chip_id, cpu) = nr_chips;
> if (prev_chip_id != id) {
> prev_chip_id = id;
> chip[nr_chips++] = id;
> _______________________________________________
