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PSCI: Add support for PSCI NODE_HW_STATE API

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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
This commit is contained in:
Jeenu Viswambharan 2016-08-03 15:54:50 +01:00
parent 77b0532392
commit 28d3d614b5
6 changed files with 65 additions and 1 deletions
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2
lib/psci/psci_setup.c
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@ -256,6 +256,8 @@ int psci_setup(uintptr_t mailbox_ep)
psci_caps |= define_psci_cap(PSCI_SYSTEM_OFF);
if (psci_plat_pm_ops->system_reset)
psci_caps |= define_psci_cap(PSCI_SYSTEM_RESET);
if (psci_plat_pm_ops->get_node_hw_state)
psci_caps |= define_psci_cap(PSCI_NODE_HW_STATE_AARCH64);
#if ENABLE_PSCI_STAT
psci_caps |= define_psci_cap(PSCI_STAT_RESIDENCY_AARCH64);