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authorLukasz Luba <lukasz.luba@arm.com>2024-02-08 12:55:36 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-02-08 15:00:22 +0100
commite7b1cc9a7ea6d7862baac0fd7b145573618727dd (patch)
tree1064f95f98d6909e15298651623a1adc9966c599 /kernel/power
parentPM: EM: Add missing newline for the message log (diff)
downloadlinux-e7b1cc9a7ea6d7862baac0fd7b145573618727dd.tar.xz
linux-e7b1cc9a7ea6d7862baac0fd7b145573618727dd.zip
PM: EM: Extend em_cpufreq_update_efficiencies() argument list
In order to prepare the code for the modifiable EM perf_state table, make em_cpufreq_update_efficiencies() take a pointer to the EM table as its second argument and modify it to use that new argument instead of the 'table' member of dev->em_pd. No functional impact. Reviewed-by: Hongyan Xia <hongyan.xia2@arm.com> Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/energy_model.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
index 8b9dd4a39f63..8c373b151875 100644
--- a/kernel/power/energy_model.c
+++ b/kernel/power/energy_model.c
@@ -237,15 +237,15 @@ static int em_create_pd(struct device *dev, int nr_states,
return 0;
}
-static void em_cpufreq_update_efficiencies(struct device *dev)
+static void
+em_cpufreq_update_efficiencies(struct device *dev, struct em_perf_state *table)
{
struct em_perf_domain *pd = dev->em_pd;
- struct em_perf_state *table;
struct cpufreq_policy *policy;
int found = 0;
int i;
- if (!_is_cpu_device(dev) || !pd)
+ if (!_is_cpu_device(dev))
return;
policy = cpufreq_cpu_get(cpumask_first(em_span_cpus(pd)));
@@ -254,8 +254,6 @@ static void em_cpufreq_update_efficiencies(struct device *dev)
return;
}
- table = pd->table;
-
for (i = 0; i < pd->nr_perf_states; i++) {
if (!(table[i].flags & EM_PERF_STATE_INEFFICIENT))
continue;
@@ -397,7 +395,7 @@ int em_dev_register_perf_domain(struct device *dev, unsigned int nr_states,
dev->em_pd->flags |= flags;
- em_cpufreq_update_efficiencies(dev);
+ em_cpufreq_update_efficiencies(dev, dev->em_pd->table);
em_debug_create_pd(dev);
dev_info(dev, "EM: created perf domain\n");