linux-kernel - Re: [PATCH v4 05/10] sched/topology: Define and assign sched

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Date:   Tue, 4 Aug 2020 13:08:40 +0200
From:   peterz@...radead.org
To:     Valentin Schneider <valentin.schneider@....com>
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        morten.rasmussen@....com, Quentin Perret <qperret@...gle.com>
Subject: Re: [PATCH v4 05/10] sched/topology: Define and assign sched_domain
 flag metadata

On Fri, Jul 31, 2020 at 12:54:57PM +0100, Valentin Schneider wrote:
> +/*
> + * Domain members share CPU capacity (i.e. SMT)
> + *
> + * SHARED_CHILD: Set from the base domain up until spanned CPUs no longer share
> + * CPU capacity.
> + */
> +SD_FLAG(SD_SHARE_CPUCAPACITY,   6, SDF_SHARED_CHILD)
> +
> +/*
> + * Domain members share CPU package resources (i.e. caches)
> + *
> + * SHARED_CHILD: Set from the base domain up until spanned CPUs no longer share
> + * the same cache(s).
> + */
> +SD_FLAG(SD_SHARE_PKG_RESOURCES, 7, SDF_SHARED_CHILD)

We should probably rename these to SD_SHARE_CORE / SD_SHARE_CACHE or
something, but let me first go through this series (and hopefully apply)
before we go make more changes.


.. onwards!