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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Lukasz Luba <lukasz.luba@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
	Len Brown <len.brown@intel.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Morten Rasmussen <morten.rasmussen@arm.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Subject: [RFC][PATCH v0.1 2/6] PM: EM: Call em_compute_costs() from em_create_perf_table()
Date: Fri, 08 Nov 2024 17:37:21 +0100	[thread overview]
Message-ID: <1821040.VLH7GnMWUR@rjwysocki.net> (raw)
In-Reply-To: <3607404.iIbC2pHGDl@rjwysocki.net>

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

In preparation for subsequent changes, move the em_compute_costs()
invocation from em_create_perf_table() to em_create_pd() which is its
only caller.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 kernel/power/energy_model.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Index: linux-pm/kernel/power/energy_model.c
===================================================================
--- linux-pm.orig/kernel/power/energy_model.c
+++ linux-pm/kernel/power/energy_model.c
@@ -388,10 +388,6 @@ static int em_create_perf_table(struct d
 
 	em_init_performance(dev, pd, table, nr_states);
 
-	ret = em_compute_costs(dev, table, cb, nr_states, flags);
-	if (ret)
-		return -EINVAL;
-
 	return 0;
 }
 
@@ -434,6 +430,10 @@ static int em_create_pd(struct device *d
 	if (ret)
 		goto free_pd_table;
 
+	ret = em_compute_costs(dev, em_table->state, cb, nr_states, flags);
+	if (ret)
+		goto free_pd_table;
+
 	rcu_assign_pointer(pd->em_table, em_table);
 
 	if (_is_cpu_device(dev))




  parent reply	other threads:[~2024-11-08 16:46 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-08 16:09 [RFC][PATCH v0.1 0/6] cpufreq: intel_pstate: Enable EAS on hybrid platforms without SMT Rafael J. Wysocki
2024-11-08 16:36 ` [RFC][PATCH v0.1 1/6] PM: EM: Move perf rebuilding function from schedutil to EM Rafael J. Wysocki
2024-11-08 16:37 ` Rafael J. Wysocki [this message]
2024-11-12  8:21   ` [RFC][PATCH v0.1 2/6] PM: EM: Call em_compute_costs() from em_create_perf_table() Dietmar Eggemann
2024-11-08 16:38 ` [RFC][PATCH v0.1 3/6] PM: EM: Add special case to em_dev_register_perf_domain() Rafael J. Wysocki
2024-11-12  8:21   ` Dietmar Eggemann
2024-11-18 15:24   ` Hongyan Xia
2024-11-19 13:51     ` Rafael J. Wysocki
2024-11-08 16:40 ` [RFC][PATCH v0.1 4/6] PM: EM: Introduce em_dev_expand_perf_domain() Rafael J. Wysocki
2024-11-08 16:41 ` [RFC][PATCH v0.1 5/6] sched/topology: Allow .setpolicy() cpufreq drivers to enable EAS Rafael J. Wysocki
2024-11-11 11:54   ` Christian Loehle
2024-11-11 13:54     ` Rafael J. Wysocki
2024-11-19 15:13       ` Vincent Guittot
2024-11-19 17:37       ` Peter Zijlstra
2024-11-19 19:28         ` Rafael J. Wysocki
2024-11-08 16:46 ` [RFC][PATCH v0.1 6/6] cpufreq: intel_pstate: Add basic EAS support on hybrid platforms Rafael J. Wysocki
2024-11-12  8:21   ` Dietmar Eggemann
2024-11-19 14:38     ` Rafael J. Wysocki
2024-11-18 16:34   ` Pierre Gondois
2024-11-19 17:20     ` Rafael J. Wysocki
2024-12-16 15:32       ` Pierre Gondois
2024-12-16 17:25         ` Rafael J. Wysocki

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