From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: rjw@rjwysocki.net, len.brown@intel.com, viresh.kumar@linaro.org
Cc: linux-pm@vger.kernel.org,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Subject: [PATCH 3/4] cpufreq: intel_pstate: Change powersave to ondemand policy
Date: Fri, 4 Dec 2015 16:08:37 -0800 [thread overview]
Message-ID: <1449274118-15575-4-git-send-email-srinivas.pandruvada@linux.intel.com> (raw)
In-Reply-To: <1449274118-15575-1-git-send-email-srinivas.pandruvada@linux.intel.com>
Move the current Intel powersave policy processing to ondemand policy.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
drivers/cpufreq/intel_pstate.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index fb92402..61b7118 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -176,7 +176,7 @@ static struct perf_limits performance_limits = {
.min_sysfs_pct = 0,
};
-static struct perf_limits powersave_limits = {
+static struct perf_limits ondemand_limits = {
.no_turbo = 0,
.turbo_disabled = 0,
.max_perf_pct = 100,
@@ -192,7 +192,7 @@ static struct perf_limits powersave_limits = {
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
static struct perf_limits *limits = &performance_limits;
#else
-static struct perf_limits *limits = &powersave_limits;
+static struct perf_limits *limits = &ondemand_limits;
#endif
static inline void pid_reset(struct _pid *pid, int setpoint, int busy,
@@ -1143,8 +1143,8 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
return 0;
}
- pr_debug("intel_pstate: set powersave\n");
- limits = &powersave_limits;
+ pr_debug("intel_pstate: set ondemand\n");
+ limits = &ondemand_limits;
limits->min_policy_pct = (policy->min * 100) / policy->cpuinfo.max_freq;
limits->min_policy_pct = clamp_t(int, limits->min_policy_pct, 0 , 100);
limits->max_policy_pct = DIV_ROUND_UP(policy->max * 100,
@@ -1180,7 +1180,7 @@ static int intel_pstate_verify_policy(struct cpufreq_policy *policy)
{
cpufreq_verify_within_cpu_limits(policy);
- if (policy->policy != CPUFREQ_POLICY_POWERSAVE &&
+ if (policy->policy != CPUFREQ_POLICY_ONDEMAND &&
policy->policy != CPUFREQ_POLICY_PERFORMANCE)
return -EINVAL;
@@ -1215,7 +1215,7 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy)
if (limits->min_perf_pct == 100 && limits->max_perf_pct == 100)
policy->policy = CPUFREQ_POLICY_PERFORMANCE;
else
- policy->policy = CPUFREQ_POLICY_POWERSAVE;
+ policy->policy = CPUFREQ_POLICY_ONDEMAND;
policy->min = cpu->pstate.min_pstate * cpu->pstate.scaling;
policy->max = cpu->pstate.turbo_pstate * cpu->pstate.scaling;
@@ -1230,10 +1230,19 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy)
return 0;
}
+static int intel_pstate_available_policies(u8 *mask)
+{
+
+ *mask = CPUFREQ_POLICY_PERFORMANCE | CPUFREQ_POLICY_ONDEMAND;
+
+ return 0;
+}
+
static struct cpufreq_driver intel_pstate_driver = {
.flags = CPUFREQ_CONST_LOOPS,
.verify = intel_pstate_verify_policy,
.setpolicy = intel_pstate_set_policy,
+ .get_available_policies = intel_pstate_available_policies,
.get = intel_pstate_get,
.init = intel_pstate_cpu_init,
.stop_cpu = intel_pstate_stop_cpu,
--
2.4.3
next prev parent reply other threads:[~2015-12-05 0:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-05 0:08 [PATCH 0/4] cpufreq governors and Intel P state driver compatibility Srinivas Pandruvada
2015-12-05 0:08 ` [PATCH 1/4] cpufreq: Add configurable generic policies Srinivas Pandruvada
2015-12-07 9:33 ` Viresh Kumar
2015-12-07 15:03 ` Srinivas Pandruvada
2015-12-05 0:08 ` [PATCH 2/4] cpufreq: Add ondemand as a generic policy Srinivas Pandruvada
2015-12-07 9:34 ` Viresh Kumar
2015-12-05 0:08 ` Srinivas Pandruvada [this message]
2015-12-05 0:08 ` [PATCH 4/4] cpufreq: intel_pstate: Add powersave policy support Srinivas Pandruvada
2015-12-08 14:35 ` [PATCH 0/4] cpufreq governors and Intel P state driver compatibility Thomas Renninger
2015-12-08 17:43 ` Srinivas Pandruvada
2015-12-09 15:02 ` Thomas Renninger
2015-12-09 16:12 ` Srinivas Pandruvada
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