PSCI: Add support for PSCI NODE_HW_STATE API
This patch adds support for NODE_HW_STATE PSCI API by introducing a new
PSCI platform hook (get_node_hw_state). The implementation validates
supplied arguments, and then invokes this platform-defined hook and
returns its result to the caller. PSCI capabilities are updated
accordingly.
Also updates porting and firmware design guides.
Change-Id: I808e55bdf0c157002a7c104b875779fe50a68a30
diff --git a/lib/psci/psci_private.h b/lib/psci/psci_private.h
index b795c8e..781b3b5 100644
--- a/lib/psci/psci_private.h
+++ b/lib/psci/psci_private.h
@@ -68,6 +68,7 @@
define_psci_cap(PSCI_AFFINITY_INFO_AARCH64) | \
define_psci_cap(PSCI_MIG_AARCH64) | \
define_psci_cap(PSCI_MIG_INFO_UP_CPU_AARCH64) | \
+ define_psci_cap(PSCI_NODE_HW_STATE_AARCH64) | \
define_psci_cap(PSCI_SYSTEM_SUSPEND_AARCH64) | \
define_psci_cap(PSCI_STAT_RESIDENCY_AARCH64) | \
define_psci_cap(PSCI_STAT_COUNT_AARCH64))