pm: stats: minor cleanups
- Rename time start/stop variables - Use uint8_t vs. int as loop index variable type - Flag unused variables Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
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1 changed files with 22 additions and 25 deletions
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@ -13,13 +13,6 @@
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#include <stats/stats.h>
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#include <sys/printk.h>
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struct pm_cpu_timing {
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uint32_t timer_start;
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uint32_t timer_end;
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};
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static struct pm_cpu_timing pm_cpu_timings[CONFIG_MP_NUM_CPUS];
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STATS_SECT_START(pm_cpu_stats)
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STATS_SECT_ENTRY32(state_count)
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STATS_SECT_ENTRY32(state_last_cycles)
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@ -32,21 +25,27 @@ STATS_NAME(pm_cpu_stats, state_last_cycles)
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STATS_NAME(pm_cpu_stats, state_total_cycles)
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STATS_NAME_END(pm_cpu_stats);
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#define PM_STAT_NAME_LEN sizeof("pm_cpu_XXX_state_X_stats")
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static char pm_cpu_stat_names[CONFIG_MP_NUM_CPUS][PM_STATE_COUNT][PM_STAT_NAME_LEN];
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static struct stats_pm_cpu_stats pm_cpu_stats[CONFIG_MP_NUM_CPUS][PM_STATE_COUNT];
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static STATS_SECT_DECL(pm_cpu_stats) stats[CONFIG_MP_NUM_CPUS][PM_STATE_COUNT];
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static int pm_stats_init(const struct device *unused)
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#define PM_STAT_NAME_LEN sizeof("pm_cpu_XXX_state_X_stats")
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static char names[CONFIG_MP_NUM_CPUS][PM_STATE_COUNT][PM_STAT_NAME_LEN];
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static uint32_t time_start[CONFIG_MP_NUM_CPUS];
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static uint32_t time_stop[CONFIG_MP_NUM_CPUS];
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static int pm_stats_init(const struct device *dev)
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{
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for (int i = 0; i < CONFIG_MP_NUM_CPUS; i++) {
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for (int j = 0; j < PM_STATE_COUNT; j++) {
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snprintk(pm_cpu_stat_names[i][j], PM_STAT_NAME_LEN,
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ARG_UNUSED(dev);
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for (uint8_t i = 0U; i < CONFIG_MP_NUM_CPUS; i++) {
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for (uint8_t j = 0U; j < PM_STATE_COUNT; j++) {
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snprintk(names[i][j], PM_STAT_NAME_LEN,
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"pm_cpu_%03d_state_%1d_stats", i, j);
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stats_init(&(pm_cpu_stats[i][j].s_hdr), STATS_SIZE_32, 3,
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STATS_NAME_INIT_PARMS(pm_cpu_stats));
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stats_register(pm_cpu_stat_names[i][j], &(pm_cpu_stats[i][j].s_hdr));
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stats_init(&(stats[i][j].s_hdr), STATS_SIZE_32, 3U,
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STATS_NAME_INIT_PARMS(stats));
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stats_register(names[i][j], &(stats[i][j].s_hdr));
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}
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}
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return 0;
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}
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@ -54,22 +53,20 @@ SYS_INIT(pm_stats_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
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void pm_stats_start(void)
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{
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pm_cpu_timings[_current_cpu->id].timer_start = k_cycle_get_32();
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time_start[_current_cpu->id] = k_cycle_get_32();
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}
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void pm_stats_stop(void)
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{
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pm_cpu_timings[_current_cpu->id].timer_end = k_cycle_get_32();
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time_stop[_current_cpu->id] = k_cycle_get_32();
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}
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void pm_stats_update(enum pm_state state)
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{
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uint8_t cpu = _current_cpu->id;
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uint32_t time_total =
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pm_cpu_timings[cpu].timer_end -
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pm_cpu_timings[cpu].timer_start;
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uint32_t time_total = time_stop[cpu] - time_start[cpu];
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STATS_INC(pm_cpu_stats[cpu][state], state_count);
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STATS_INCN(pm_cpu_stats[cpu][state], state_total_cycles, time_total);
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STATS_SET(pm_cpu_stats[cpu][state], state_last_cycles, time_total);
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STATS_INC(stats[cpu][state], state_count);
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STATS_INCN(stats[cpu][state], state_total_cycles, time_total);
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STATS_SET(stats[cpu][state], state_last_cycles, time_total);
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}
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