diff options
| -rw-r--r-- | docs/firmware-design.rst | 16 | ||||
| -rw-r--r-- | include/lib/el3_runtime/pubsub_events.h | 6 | ||||
| -rw-r--r-- | lib/psci/psci_on.c | 3 |
3 files changed, 25 insertions, 0 deletions
diff --git a/docs/firmware-design.rst b/docs/firmware-design.rst index 8851065a..853e3901 100644 --- a/docs/firmware-design.rst +++ b/docs/firmware-design.rst @@ -2339,6 +2339,22 @@ implement: SUBSCRIBE_TO_EVENT(foo, foo_handler); +Available Events +~~~~~~~~~~~~~~~~ + +ARM Trusted Firmware core makes some events available by default. They're listed +below, along with information as to when they're published, and the arguments +passed to subscribed handlers. + +Other EL3 components that are conditionally compiled in may make their own +events available, but aren't documented here. + +- ``psci_cpu_on_finish`` + + - When: Published on a PE after it's finished its power-up sequence. + + - Argument: ``NULL``. + Performance Measurement Framework --------------------------------- diff --git a/include/lib/el3_runtime/pubsub_events.h b/include/lib/el3_runtime/pubsub_events.h index 8ef1a11b..62550f81 100644 --- a/include/lib/el3_runtime/pubsub_events.h +++ b/include/lib/el3_runtime/pubsub_events.h @@ -10,3 +10,9 @@ * This file defines a list of pubsub events, declared using * REGISTER_PUBSUB_EVENT() macro. */ + +/* + * Event published after a CPU has been powered up and finished its + * initialization. + */ +REGISTER_PUBSUB_EVENT(psci_cpu_on_finish); diff --git a/lib/psci/psci_on.c b/lib/psci/psci_on.c index d3d0e2ff..53b044ec 100644 --- a/lib/psci/psci_on.c +++ b/lib/psci/psci_on.c @@ -11,6 +11,7 @@ #include <context_mgmt.h> #include <debug.h> #include <platform.h> +#include <pubsub_events.h> #include <stddef.h> #include "psci_private.h" @@ -188,6 +189,8 @@ void psci_cpu_on_finish(unsigned int cpu_idx, if (psci_spd_pm && psci_spd_pm->svc_on_finish) psci_spd_pm->svc_on_finish(0); + PUBLISH_EVENT(psci_cpu_on_finish); + /* Populate the mpidr field within the cpu node array */ /* This needs to be done only once */ psci_cpu_pd_nodes[cpu_idx].mpidr = read_mpidr() & MPIDR_AFFINITY_MASK; |