Implement PSCI_FEATURES API
This patch implements the PSCI_FEATURES function which is a mandatory
API in the PSCI 1.0 specification. A capability variable is
constructed during initialization by examining the plat_pm_ops and
spd_pm_ops exported by the platform and the Secure Payload Dispatcher.
This is used by the PSCI FEATURES function to determine which
PSCI APIs are supported by the platform.
Change-Id: I147ffc1bd5d90b469bd3cc4bbe0a20e95c247df7
diff --git a/services/std_svc/psci/psci_private.h b/services/std_svc/psci/psci_private.h
index 6247770..5484665 100644
--- a/services/std_svc/psci/psci_private.h
+++ b/services/std_svc/psci/psci_private.h
@@ -52,6 +52,26 @@
CPU_DATA_PSCI_LOCK_OFFSET)
#endif
+/*
+ * The PSCI capability which are provided by the generic code but does not
+ * depend on the platform or spd capabilities.
+ */
+#define PSCI_GENERIC_CAP \
+ (define_psci_cap(PSCI_VERSION) | \
+ define_psci_cap(PSCI_AFFINITY_INFO_AARCH64) | \
+ define_psci_cap(PSCI_FEATURES))
+
+/*
+ * The PSCI capabilities mask for 64 bit functions.
+ */
+#define PSCI_CAP_64BIT_MASK \
+ (define_psci_cap(PSCI_CPU_SUSPEND_AARCH64) | \
+ define_psci_cap(PSCI_CPU_ON_AARCH64) | \
+ define_psci_cap(PSCI_AFFINITY_INFO_AARCH64) | \
+ define_psci_cap(PSCI_MIG_AARCH64) | \
+ define_psci_cap(PSCI_MIG_INFO_UP_CPU_AARCH64))
+
+
/*******************************************************************************
* The following two data structures hold the topology tree which in turn tracks
* the state of the all the affinity instances supported by the platform.
@@ -82,6 +102,7 @@
******************************************************************************/
extern const plat_pm_ops_t *psci_plat_pm_ops;
extern aff_map_node_t psci_aff_map[PSCI_NUM_AFFS];
+extern uint32_t psci_caps;
/*******************************************************************************
* SPD's power management hooks registered with PSCI