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Diffstat (limited to 'services/std_svc/psci/psci_private.h')
| -rw-r--r-- | services/std_svc/psci/psci_private.h | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/services/std_svc/psci/psci_private.h b/services/std_svc/psci/psci_private.h deleted file mode 100644 index ffb07321..00000000 --- a/services/std_svc/psci/psci_private.h +++ /dev/null @@ -1,254 +0,0 @@ -/* - * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of ARM nor the names of its contributors may be used - * to endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __PSCI_PRIVATE_H__ -#define __PSCI_PRIVATE_H__ - -#include <arch.h> -#include <bakery_lock.h> -#include <bl_common.h> -#include <cpu_data.h> -#include <pmf.h> -#include <psci.h> -#include <spinlock.h> - -/* - * The following helper macros abstract the interface to the Bakery - * Lock API. - */ -#define psci_lock_init(non_cpu_pd_node, idx) \ - ((non_cpu_pd_node)[(idx)].lock_index = (idx)) -#define psci_lock_get(non_cpu_pd_node) \ - bakery_lock_get(&psci_locks[(non_cpu_pd_node)->lock_index]) -#define psci_lock_release(non_cpu_pd_node) \ - bakery_lock_release(&psci_locks[(non_cpu_pd_node)->lock_index]) - -/* - * 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) | \ - define_psci_cap(PSCI_SYSTEM_SUSPEND_AARCH64) | \ - define_psci_cap(PSCI_STAT_RESIDENCY_AARCH64) | \ - define_psci_cap(PSCI_STAT_COUNT_AARCH64)) - -/* - * Helper macros to get/set the fields of PSCI per-cpu data. - */ -#define psci_set_aff_info_state(aff_state) \ - set_cpu_data(psci_svc_cpu_data.aff_info_state, aff_state) -#define psci_get_aff_info_state() \ - get_cpu_data(psci_svc_cpu_data.aff_info_state) -#define psci_get_aff_info_state_by_idx(idx) \ - get_cpu_data_by_index(idx, psci_svc_cpu_data.aff_info_state) -#define psci_set_aff_info_state_by_idx(idx, aff_state) \ - set_cpu_data_by_index(idx, psci_svc_cpu_data.aff_info_state,\ - aff_state) -#define psci_get_suspend_pwrlvl() \ - get_cpu_data(psci_svc_cpu_data.target_pwrlvl) -#define psci_set_suspend_pwrlvl(target_lvl) \ - set_cpu_data(psci_svc_cpu_data.target_pwrlvl, target_lvl) -#define psci_set_cpu_local_state(state) \ - set_cpu_data(psci_svc_cpu_data.local_state, state) -#define psci_get_cpu_local_state() \ - get_cpu_data(psci_svc_cpu_data.local_state) -#define psci_get_cpu_local_state_by_idx(idx) \ - get_cpu_data_by_index(idx, psci_svc_cpu_data.local_state) - -/* - * Helper macros for the CPU level spinlocks - */ -#define psci_spin_lock_cpu(idx) spin_lock(&psci_cpu_pd_nodes[idx].cpu_lock) -#define psci_spin_unlock_cpu(idx) spin_unlock(&psci_cpu_pd_nodes[idx].cpu_lock) - -/* Helper macro to identify a CPU standby request in PSCI Suspend call */ -#define is_cpu_standby_req(is_power_down_state, retn_lvl) \ - (((!(is_power_down_state)) && ((retn_lvl) == 0)) ? 1 : 0) - -/* Following are used as ID's to capture time-stamp */ -#define PSCI_STAT_ID_ENTER_LOW_PWR 0 -#define PSCI_STAT_ID_EXIT_LOW_PWR 1 -#define PSCI_STAT_TOTAL_IDS 2 - -/* Declare PMF service functions for PSCI */ -PMF_DECLARE_CAPTURE_TIMESTAMP(psci_svc) -PMF_DECLARE_GET_TIMESTAMP(psci_svc) - -/******************************************************************************* - * The following two data structures implement the power domain tree. The tree - * is used to track the state of all the nodes i.e. power domain instances - * described by the platform. The tree consists of nodes that describe CPU power - * domains i.e. leaf nodes and all other power domains which are parents of a - * CPU power domain i.e. non-leaf nodes. - ******************************************************************************/ -typedef struct non_cpu_pwr_domain_node { - /* - * Index of the first CPU power domain node level 0 which has this node - * as its parent. - */ - unsigned int cpu_start_idx; - - /* - * Number of CPU power domains which are siblings of the domain indexed - * by 'cpu_start_idx' i.e. all the domains in the range 'cpu_start_idx - * -> cpu_start_idx + ncpus' have this node as their parent. - */ - unsigned int ncpus; - - /* - * Index of the parent power domain node. - * TODO: Figure out whether to whether using pointer is more efficient. - */ - unsigned int parent_node; - - plat_local_state_t local_state; - - unsigned char level; - - /* For indexing the psci_lock array*/ - unsigned char lock_index; -} non_cpu_pd_node_t; - -typedef struct cpu_pwr_domain_node { - u_register_t mpidr; - - /* - * Index of the parent power domain node. - * TODO: Figure out whether to whether using pointer is more efficient. - */ - unsigned int parent_node; - - /* - * A CPU power domain does not require state coordination like its - * parent power domains. Hence this node does not include a bakery - * lock. A spinlock is required by the CPU_ON handler to prevent a race - * when multiple CPUs try to turn ON the same target CPU. - */ - spinlock_t cpu_lock; -} cpu_pd_node_t; - -/******************************************************************************* - * Data prototypes - ******************************************************************************/ -extern const plat_psci_ops_t *psci_plat_pm_ops; -extern non_cpu_pd_node_t psci_non_cpu_pd_nodes[PSCI_NUM_NON_CPU_PWR_DOMAINS]; -extern cpu_pd_node_t psci_cpu_pd_nodes[PLATFORM_CORE_COUNT]; -extern unsigned int psci_caps; - -/* One bakery lock is required for each non-cpu power domain */ -DECLARE_BAKERY_LOCK(psci_locks[PSCI_NUM_NON_CPU_PWR_DOMAINS]); - -/******************************************************************************* - * SPD's power management hooks registered with PSCI - ******************************************************************************/ -extern const spd_pm_ops_t *psci_spd_pm; - -/******************************************************************************* - * Function prototypes - ******************************************************************************/ -/* Private exported functions from psci_common.c */ -int psci_validate_power_state(unsigned int power_state, - psci_power_state_t *state_info); -void psci_query_sys_suspend_pwrstate(psci_power_state_t *state_info); -int psci_validate_mpidr(u_register_t mpidr); -void psci_init_req_local_pwr_states(void); -void psci_power_up_finish(void); -int psci_validate_entry_point(entry_point_info_t *ep, - uintptr_t entrypoint, u_register_t context_id); -void psci_get_parent_pwr_domain_nodes(unsigned int cpu_idx, - unsigned int end_lvl, - unsigned int node_index[]); -void psci_do_state_coordination(unsigned int end_pwrlvl, - psci_power_state_t *state_info); -void psci_acquire_pwr_domain_locks(unsigned int end_pwrlvl, - unsigned int cpu_idx); -void psci_release_pwr_domain_locks(unsigned int end_pwrlvl, - unsigned int cpu_idx); -int psci_validate_suspend_req(const psci_power_state_t *state_info, - unsigned int is_power_down_state_req); -unsigned int psci_find_max_off_lvl(const psci_power_state_t *state_info); -unsigned int psci_find_target_suspend_lvl(const psci_power_state_t *state_info); -void psci_set_pwr_domains_to_run(unsigned int end_pwrlvl); -void psci_print_power_domain_map(void); -unsigned int psci_is_last_on_cpu(void); -int psci_spd_migrate_info(u_register_t *mpidr); - -/* Private exported functions from psci_on.c */ -int psci_cpu_on_start(unsigned long target_cpu, - entry_point_info_t *ep); - -void psci_cpu_on_finish(unsigned int cpu_idx, - psci_power_state_t *state_info); - -/* Private exported functions from psci_off.c */ -int psci_do_cpu_off(unsigned int end_pwrlvl); - -/* Private exported functions from psci_suspend.c */ -void psci_cpu_suspend_start(entry_point_info_t *ep, - unsigned int end_pwrlvl, - psci_power_state_t *state_info, - unsigned int is_power_down_state_req); - -void psci_cpu_suspend_finish(unsigned int cpu_idx, - psci_power_state_t *state_info); - -/* Private exported functions from psci_helpers.S */ -void psci_do_pwrdown_cache_maintenance(unsigned int pwr_level); -void psci_do_pwrup_cache_maintenance(void); - -/* Private exported functions from psci_system_off.c */ -void __dead2 psci_system_off(void); -void __dead2 psci_system_reset(void); - -/* Private exported functions from psci_stat.c */ -void psci_stats_update_pwr_down(unsigned int end_pwrlvl, - const psci_power_state_t *state_info); -void psci_stats_update_pwr_up(unsigned int end_pwrlvl, - const psci_power_state_t *state_info, - unsigned int flags); -u_register_t psci_stat_residency(u_register_t target_cpu, - unsigned int power_state); -u_register_t psci_stat_count(u_register_t target_cpu, - unsigned int power_state); - -#endif /* __PSCI_PRIVATE_H__ */ |