dp-arm
authored
In order to quantify the overall time spent in the PSCI software implementation, an initial collection of PMF instrumentation points has been added. Instrumentation has been added to the following code paths: - Entry to PSCI SMC handler. The timestamp is captured as early as possible during the runtime exception and stored in memory before entering the PSCI SMC handler. - Exit from PSCI SMC handler. The timestamp is captured after normal return from the PSCI SMC handler or if a low power state was requested it is captured in the bl31 warm boot path before return to normal world. - Entry to low power state. The timestamp is captured before entry to a low power state which implies either standby or power down. As these power states are mutually exclusive, only one timestamp is defined to describe both. It is possible to differentiate between the two power states using the PSCI STAT interface. - Exit from low power state. The timestamp is captu...
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.. | ||
aarch32 | ||
aarch64 | ||
psci_common.c | ||
psci_lib.mk | ||
psci_main.c | ||
psci_off.c | ||
psci_on.c | ||
psci_private.h | ||
psci_setup.c | ||
psci_stat.c | ||
psci_suspend.c | ||
psci_system_off.c |