diff options
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/energy_model.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c index 0a9326f5f421..9892d548a0fa 100644 --- a/kernel/power/energy_model.c +++ b/kernel/power/energy_model.c @@ -27,18 +27,18 @@ static DEFINE_MUTEX(em_pd_mutex); #ifdef CONFIG_DEBUG_FS static struct dentry *rootdir; -static void em_debug_create_cs(struct em_cap_state *cs, struct dentry *pd) +static void em_debug_create_ps(struct em_perf_state *ps, struct dentry *pd) { struct dentry *d; char name[24]; - snprintf(name, sizeof(name), "cs:%lu", cs->frequency); + snprintf(name, sizeof(name), "ps:%lu", ps->frequency); - /* Create per-cs directory */ + /* Create per-ps directory */ d = debugfs_create_dir(name, pd); - debugfs_create_ulong("frequency", 0444, d, &cs->frequency); - debugfs_create_ulong("power", 0444, d, &cs->power); - debugfs_create_ulong("cost", 0444, d, &cs->cost); + debugfs_create_ulong("frequency", 0444, d, &ps->frequency); + debugfs_create_ulong("power", 0444, d, &ps->power); + debugfs_create_ulong("cost", 0444, d, &ps->cost); } static int em_debug_cpus_show(struct seq_file *s, void *unused) @@ -62,9 +62,9 @@ static void em_debug_create_pd(struct em_perf_domain *pd, int cpu) debugfs_create_file("cpus", 0444, d, pd->cpus, &em_debug_cpus_fops); - /* Create a sub-directory for each capacity state */ - for (i = 0; i < pd->nr_cap_states; i++) - em_debug_create_cs(&pd->table[i], d); + /* Create a sub-directory for each performance state */ + for (i = 0; i < pd->nr_perf_states; i++) + em_debug_create_ps(&pd->table[i], d); } static int __init em_debug_init(void) @@ -84,7 +84,7 @@ static struct em_perf_domain *em_create_pd(cpumask_t *span, int nr_states, unsigned long opp_eff, prev_opp_eff = ULONG_MAX; unsigned long power, freq, prev_freq = 0; int i, ret, cpu = cpumask_first(span); - struct em_cap_state *table; + struct em_perf_state *table; struct em_perf_domain *pd; u64 fmax; @@ -99,26 +99,26 @@ static struct em_perf_domain *em_create_pd(cpumask_t *span, int nr_states, if (!table) goto free_pd; - /* Build the list of capacity states for this performance domain */ + /* Build the list of performance states for this performance domain */ for (i = 0, freq = 0; i < nr_states; i++, freq++) { /* * active_power() is a driver callback which ceils 'freq' to - * lowest capacity state of 'cpu' above 'freq' and updates + * lowest performance state of 'cpu' above 'freq' and updates * 'power' and 'freq' accordingly. */ ret = cb->active_power(&power, &freq, cpu); if (ret) { - pr_err("pd%d: invalid cap. state: %d\n", cpu, ret); - goto free_cs_table; + pr_err("pd%d: invalid perf. state: %d\n", cpu, ret); + goto free_ps_table; } /* * We expect the driver callback to increase the frequency for - * higher capacity states. + * higher performance states. */ if (freq <= prev_freq) { pr_err("pd%d: non-increasing freq: %lu\n", cpu, freq); - goto free_cs_table; + goto free_ps_table; } /* @@ -127,7 +127,7 @@ static struct em_perf_domain *em_create_pd(cpumask_t *span, int nr_states, */ if (!power || power > EM_CPU_MAX_POWER) { pr_err("pd%d: invalid power: %lu\n", cpu, power); - goto free_cs_table; + goto free_ps_table; } table[i].power = power; @@ -141,12 +141,12 @@ static struct em_perf_domain *em_create_pd(cpumask_t *span, int nr_states, */ opp_eff = freq / power; if (opp_eff >= prev_opp_eff) - pr_warn("pd%d: hertz/watts ratio non-monotonically decreasing: em_cap_state %d >= em_cap_state%d\n", + pr_warn("pd%d: hertz/watts ratio non-monotonically decreasing: em_perf_state %d >= em_perf_state%d\n", cpu, i, i - 1); prev_opp_eff = opp_eff; } - /* Compute the cost of each capacity_state. */ + /* Compute the cost of each performance state. */ fmax = (u64) table[nr_states - 1].frequency; for (i = 0; i < nr_states; i++) { table[i].cost = div64_u64(fmax * table[i].power, @@ -154,14 +154,14 @@ static struct em_perf_domain *em_create_pd(cpumask_t *span, int nr_states, } pd->table = table; - pd->nr_cap_states = nr_states; + pd->nr_perf_states = nr_states; cpumask_copy(to_cpumask(pd->cpus), span); em_debug_create_pd(pd, cpu); return pd; -free_cs_table: +free_ps_table: kfree(table); free_pd: kfree(pd); @@ -185,7 +185,7 @@ EXPORT_SYMBOL_GPL(em_cpu_get); /** * em_register_perf_domain() - Register the Energy Model of a performance domain * @span : Mask of CPUs in the performance domain - * @nr_states : Number of capacity states to register + * @nr_states : Number of performance states to register * @cb : Callback functions providing the data of the Energy Model * * Create Energy Model tables for a performance domain using the callbacks |