diff options
Diffstat (limited to 'lib/psci/psci_off.c')
| -rw-r--r-- | lib/psci/psci_off.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/psci/psci_off.c b/lib/psci/psci_off.c index 1cc6ede3d..897bf319a 100644 --- a/lib/psci/psci_off.c +++ b/lib/psci/psci_off.c @@ -107,12 +107,29 @@ int psci_do_cpu_off(unsigned int end_pwrlvl) psci_stats_update_pwr_down(end_pwrlvl, &state_info); #endif +#if ENABLE_RUNTIME_INSTRUMENTATION + + /* + * Flush cache line so that even if CPU power down happens + * the timestamp update is reflected in memory. + */ + PMF_CAPTURE_TIMESTAMP(rt_instr_svc, + RT_INSTR_ENTER_CFLUSH, + PMF_CACHE_MAINT); +#endif + /* * Arch. management. Perform the necessary steps to flush all * cpu caches. */ psci_do_pwrdown_cache_maintenance(psci_find_max_off_lvl(&state_info)); +#if ENABLE_RUNTIME_INSTRUMENTATION + PMF_CAPTURE_TIMESTAMP(rt_instr_svc, + RT_INSTR_EXIT_CFLUSH, + PMF_NO_CACHE_MAINT); +#endif + /* * Plat. management: Perform platform specific actions to turn this * cpu off e.g. exit cpu coherency, program the power controller etc. |