From: Viresh Kumar <viresh.kumar@linaro.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Linux PM <linux-pm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Doug Smythies <dsmythies@telus.net>,
Giovanni Gherdovich <ggherdovich@suse.com>
Subject: Re: [RFC][PATCH 1/2] cpufreq: Add special-purpose fast-switching callback for drivers
Date: Mon, 7 Dec 2020 13:16:15 +0530 [thread overview]
Message-ID: <20201207074615.kmvy5afoolhv5cgq@vireshk-i7> (raw)
In-Reply-To: <2174134.tL5yAn4CWt@kreacher>
On 30-11-20, 19:37, Rafael J. Wysocki wrote:
> Index: linux-pm/include/linux/cpufreq.h
> ===================================================================
> --- linux-pm.orig/include/linux/cpufreq.h
> +++ linux-pm/include/linux/cpufreq.h
> @@ -320,6 +320,15 @@ struct cpufreq_driver {
> unsigned int index);
> unsigned int (*fast_switch)(struct cpufreq_policy *policy,
> unsigned int target_freq);
> + /*
> + * ->fast_switch() replacement for drivers that use an internal
> + * representation of performance levels and can pass hints other than
> + * the target performance level to the hardware.
> + */
> + void (*adjust_perf)(unsigned int cpu, bool busy,
Maybe this should still take policy as an argument (like other calls)
instead of CPU, even if it is going to be used for single-cpu per
policy case for now.
> + unsigned long min_perf,
> + unsigned long target_perf,
> + unsigned long capacity);
--
viresh
next prev parent reply other threads:[~2020-12-07 7:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-30 18:33 [RFC][PATCH 0/2] cpufreq: Allow drivers to receive more information from the governor Rafael J. Wysocki
2020-11-30 18:37 ` [RFC][PATCH 1/2] cpufreq: Add special-purpose fast-switching callback for drivers Rafael J. Wysocki
2020-12-02 15:58 ` Doug Smythies
2020-12-02 17:39 ` Rafael J. Wysocki
2020-12-03 12:41 ` Peter Zijlstra
2020-12-03 14:44 ` Rafael J. Wysocki
2020-12-07 7:46 ` Viresh Kumar [this message]
2020-12-07 13:40 ` Rafael J. Wysocki
2020-11-30 18:37 ` [RFC][PATCH 2/2] cpufreq: intel_pstate: Implement the ->adjust_perf() callback Rafael J. Wysocki
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