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From: Viresh Kumar <viresh.kumar@linaro.org>
To: Quentin Perret <quentin.perret@arm.com>
Cc: linux-pm@vger.kernel.org, rjw@rjwysocki.net,
	amit.kachhap@gmail.com, daniel.lezcano@linaro.org,
	will.deacon@arm.com, linux-kernel@vger.kernel.org,
	edubezval@gmail.com, catalin.marinas@arm.com,
	rui.zhang@intel.com, javi.merino@kernel.org,
	ionela.voinescu@arm.com, dietmar.eggemann@arm.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/3] thermal: cpu_cooling: Migrate to using the EM framework
Date: Wed, 10 Apr 2019 11:14:49 +0530	[thread overview]
Message-ID: <20190410054449.zwmemg7vza557gue@vireshk-i7> (raw)
In-Reply-To: <20190328101352.25657-4-quentin.perret@arm.com>

On 28-03-19, 10:13, Quentin Perret wrote:
> +static unsigned int get_state_freq(struct cpufreq_cooling_device *cpufreq_cdev,
> +			      unsigned long state)
> +{
> +	struct cpufreq_policy *policy;
> +	unsigned long idx;
> +
> +	/* Use the Energy Model table if available */
> +	if (cpufreq_cdev->em) {
> +		idx = cpufreq_cdev->max_level - state;
> +		return cpufreq_cdev->em->table[idx].frequency;
> +	}
> +
> +	/* Otherwise, fallback on the CPUFreq table */
> +	policy = cpufreq_cdev->policy;
> +	if (policy->freq_table_sorted == CPUFREQ_TABLE_SORTED_ASCENDING)

It is not guaranteed that the frequency table is sorted in any order, isn't it ?

> +		idx = cpufreq_cdev->max_level - state;
> +	else
> +		idx = state;

-- 
viresh

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  parent reply	other threads:[~2019-04-10  5:45 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-28 10:13 [PATCH 0/3] cpu_cooling: Make IPA use PM_EM Quentin Perret
2019-03-28 10:13 ` [PATCH 1/3] arm64: defconfig: Enable CONFIG_ENERGY_MODEL Quentin Perret
2019-03-28 10:22   ` Quentin Perret
2019-03-28 17:27     ` Daniel Lezcano
2019-03-28 17:42       ` Quentin Perret
2019-03-28 19:51         ` Daniel Lezcano
2019-03-29  9:03           ` Quentin Perret
2019-03-28 10:13 ` [PATCH 2/3] PM / EM: Expose perf domain struct Quentin Perret
2019-03-28 10:13 ` [PATCH 3/3] thermal: cpu_cooling: Migrate to using the EM framework Quentin Perret
2019-03-28 20:23   ` Daniel Lezcano
2019-03-29  9:16     ` Quentin Perret
2019-03-29 17:17       ` Daniel Lezcano
2019-04-10  5:44   ` Viresh Kumar [this message]
2019-04-10  8:57     ` Quentin Perret
2019-04-10 10:14       ` Viresh Kumar
2019-04-10 10:36         ` Quentin Perret

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