Merge back earlier cpufreq material for v4.10.

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index d46e881ff4d774ce9bdc2bc378d2bf222a061589..d7a9195a835138ad18f2cdce1e75af5dbbd91073 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -179,6 +179,7 @@ struct _pid {
 /**
  * struct cpudata -    Per CPU instance data storage
  * @cpu:               CPU number for this instance data
+ * @policy:            CPUFreq policy value
  * @update_util:       CPUFreq utility callback information
  * @update_util_set:   CPUFreq utility callback is set
  * @iowait_boost:      iowait-related boost fraction
@@ -201,6 +202,7 @@ struct _pid {
 struct cpudata {
        int cpu;
 
+       unsigned int policy;
        struct update_util_data update_util;
        bool   update_util_set;
 
@@ -1139,10 +1141,8 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max)
        *min = clamp_t(int, min_perf, cpu->pstate.min_pstate, max_perf);
 }
 
-static void intel_pstate_set_min_pstate(struct cpudata *cpu)
+static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
 {
-       int pstate = cpu->pstate.min_pstate;
-
        trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu);
        cpu->pstate.current_pstate = pstate;
        /*
@@ -1154,6 +1154,20 @@ static void intel_pstate_set_min_pstate(struct cpudata *cpu)
                      pstate_funcs.get_val(cpu, pstate));
 }
 
+static void intel_pstate_set_min_pstate(struct cpudata *cpu)
+{
+       intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
+}
+
+static void intel_pstate_max_within_limits(struct cpudata *cpu)
+{
+       int min_pstate, max_pstate;
+
+       update_turbo_state();
+       intel_pstate_get_min_max(cpu, &min_pstate, &max_pstate);
+       intel_pstate_set_pstate(cpu, max_pstate);
+}
+
 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 {
        cpu->pstate.min_pstate = pstate_funcs.get_min();
@@ -1322,7 +1336,8 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
 
        from = cpu->pstate.current_pstate;
 
-       target_pstate = pstate_funcs.get_target_pstate(cpu);
+       target_pstate = cpu->policy == CPUFREQ_POLICY_PERFORMANCE ?
+               cpu->pstate.turbo_pstate : pstate_funcs.get_target_pstate(cpu);
 
        intel_pstate_update_pstate(cpu, target_pstate);
 
@@ -1488,7 +1503,9 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
        pr_debug("set_policy cpuinfo.max %u policy->max %u\n",
                 policy->cpuinfo.max_freq, policy->max);
 
-       cpu = all_cpu_data[0];
+       cpu = all_cpu_data[policy->cpu];
+       cpu->policy = policy->policy;
+
        if (cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate &&
            policy->max < policy->cpuinfo.max_freq &&
            policy->max > cpu->pstate.max_pstate * cpu->pstate.scaling) {
@@ -1496,7 +1513,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
                policy->max = policy->cpuinfo.max_freq;
        }
 
-       if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+       if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) {
                limits = &performance_limits;
                if (policy->max >= policy->cpuinfo.max_freq) {
                        pr_debug("set performance\n");
@@ -1532,6 +1549,15 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
        limits->max_perf = round_up(limits->max_perf, FRAC_BITS);
 
  out:
+       if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) {
+               /*
+                * NOHZ_FULL CPUs need this as the governor callback may not
+                * be invoked on them.
+                */
+               intel_pstate_clear_update_util_hook(policy->cpu);
+               intel_pstate_max_within_limits(cpu);
+       }
+
        intel_pstate_set_update_util_hook(policy->cpu);
 
        intel_pstate_hwp_set_policy(policy);

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 5fa55fc56e18d1971da8c2e031c35a17fe0d51fc..32dc0cbd51ca3729bef594f7a84832bc6389e3ea 100644 (file)
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -677,10 +677,10 @@ static inline int cpufreq_table_find_index_dl(struct cpufreq_policy *policy,
                if (best == table - 1)
                        return pos - table;
 
-               return best - pos;
+               return best - table;
        }
 
-       return best - pos;
+       return best - table;
 }
 
 /* Works only on sorted freq-tables */