PSCI: Invoke PM hooks only for the highest level
This patch optimizes the invocation of the platform power management hooks for
ON, OFF and SUSPEND such that they are called only for the highest affinity
level which will be powered off/on. Earlier, the hooks were being invoked for
all the intermediate levels as well.
This patch requires that the platforms migrate to the new semantics of the PM
hooks. It also removes the `state` parameter from the pm hooks as the `afflvl`
parameter now indicates the highest affinity level for which power management
operations are required.
Change-Id: I57c87931d8a2723aeade14acc710e5b78ac41732
diff --git a/services/std_svc/psci1.0/psci_private.h b/services/std_svc/psci1.0/psci_private.h
index 2955de7..7797fa7 100644
--- a/services/std_svc/psci1.0/psci_private.h
+++ b/services/std_svc/psci1.0/psci_private.h
@@ -96,7 +96,8 @@
} aff_limits_node_t;
typedef aff_map_node_t (*mpidr_aff_map_nodes_t[MPIDR_MAX_AFFLVL + 1]);
-typedef void (*afflvl_power_on_finisher_t)(aff_map_node_t *);
+typedef void (*afflvl_power_on_finisher_t)(aff_map_node_t *mpidr_nodes[],
+ int afflvl);
/*******************************************************************************
* Data prototypes
@@ -121,9 +122,8 @@
unsigned long mpidr_set_aff_inst(unsigned long, unsigned char, int);
int psci_validate_mpidr(unsigned long, int);
int get_power_on_target_afflvl(void);
-void psci_afflvl_power_on_finish(int,
- int,
- afflvl_power_on_finisher_t *);
+void psci_afflvl_power_on_finish(int end_afflvl,
+ afflvl_power_on_finisher_t pon_handler);
int psci_get_ns_ep_info(entry_point_info_t *ep,
uint64_t entrypoint, uint64_t context_id);
int psci_check_afflvl_range(int start_afflvl, int end_afflvl);
@@ -138,7 +138,6 @@
int end_afflvl,
mpidr_aff_map_nodes_t mpidr_nodes);
void psci_print_affinity_map(void);
-void psci_set_max_phys_off_afflvl(uint32_t afflvl);
uint32_t psci_find_max_phys_off_afflvl(uint32_t start_afflvl,
uint32_t end_afflvl,
aff_map_node_t *mpidr_nodes[]);
@@ -155,18 +154,19 @@
/* Private exported functions from psci_affinity_on.c */
int psci_afflvl_on(unsigned long target_cpu,
entry_point_info_t *ep,
- int start_afflvl,
int end_afflvl);
+void psci_afflvl_on_finisher(aff_map_node_t *node[], int afflvl);
+
/* Private exported functions from psci_affinity_off.c */
-int psci_afflvl_off(int, int);
+int psci_afflvl_off(int end_afflvl);
/* Private exported functions from psci_affinity_suspend.c */
void psci_afflvl_suspend(entry_point_info_t *ep,
- int start_afflvl,
int end_afflvl);
-unsigned int psci_afflvl_suspend_finish(int, int);
+void psci_afflvl_suspend_finisher(aff_map_node_t *node[], int afflvl);
+
void psci_set_suspend_power_state(unsigned int power_state);
/* Private exported functions from psci_helpers.S */