diff options
| author | Mahesh Sivasubramanian <msivasub@codeaurora.org> | 2017-04-13 08:55:52 -0600 |
|---|---|---|
| committer | Mahesh Sivasubramanian <msivasub@codeaurora.org> | 2017-04-13 08:57:30 -0600 |
| commit | 476b11678f1e6f496e9bec97e60014c0cececfe6 (patch) | |
| tree | f490b2eb5fc7f72e80b59eadd91c6229d2654738 /drivers/cpuidle/lpm-levels.c | |
| parent | 51740526b9b90ef772ba2c3c6b288f0d1688bb10 (diff) | |
drivers: cpuidle: lpm-levels: Log hotplug events
Add debug events for CPU_STARTING and CPU_DYING events when a CPU is
hotplugged. The events will help correlate with the TZ events using the
ARM timers counts for debug.
Change-Id: Ieb6449575b4a95974b787ceea430fc5362c77c29
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Diffstat (limited to 'drivers/cpuidle/lpm-levels.c')
| -rw-r--r-- | drivers/cpuidle/lpm-levels.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/cpuidle/lpm-levels.c b/drivers/cpuidle/lpm-levels.c index 64c4bf8f58a8..cf9adbc830aa 100644 --- a/drivers/cpuidle/lpm-levels.c +++ b/drivers/cpuidle/lpm-levels.c @@ -72,6 +72,8 @@ enum debug_event { CLUSTER_ENTER, CLUSTER_EXIT, PRE_PC_CB, + CPU_HP_STARTING, + CPU_HP_DYING, }; struct lpm_debug { @@ -341,10 +343,16 @@ static int lpm_cpu_callback(struct notifier_block *cpu_nb, switch (action & ~CPU_TASKS_FROZEN) { case CPU_DYING: + update_debug_pc_event(CPU_HP_DYING, cpu, + cluster->num_children_in_sync.bits[0], + cluster->child_cpus.bits[0], false); cluster_prepare(cluster, get_cpu_mask((unsigned int) cpu), NR_LPM_LEVELS, false, 0); break; case CPU_STARTING: + update_debug_pc_event(CPU_HP_STARTING, cpu, + cluster->num_children_in_sync.bits[0], + cluster->child_cpus.bits[0], false); cluster_unprepare(cluster, get_cpu_mask((unsigned int) cpu), NR_LPM_LEVELS, false, 0); break; |