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Diffstat (limited to 'services/std_svc/psci/psci_private.h')
| -rw-r--r-- | services/std_svc/psci/psci_private.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/services/std_svc/psci/psci_private.h b/services/std_svc/psci/psci_private.h new file mode 100644 index 0000000..747a2d4 --- /dev/null +++ b/services/std_svc/psci/psci_private.h @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2013-2014, 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 <psci.h> + +/******************************************************************************* + * The following two data structures hold the generic information to bringup + * a suspended/hotplugged out cpu + ******************************************************************************/ +typedef struct eret_params { + unsigned long entrypoint; + unsigned long spsr; +} eret_params_t; + +typedef struct ns_entry_info { + eret_params_t eret_info; + unsigned long context_id; + unsigned int scr; + unsigned int sctlr; +} ns_entry_info_t; + +/******************************************************************************* + * 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. + ******************************************************************************/ +typedef struct aff_map_node { + unsigned long mpidr; + unsigned short ref_count; + unsigned char state; + unsigned char level; + unsigned int data; + bakery_lock_t lock; +} aff_map_node_t; + +typedef struct aff_limits_node { + int min; + int max; +} aff_limits_node_t; + +/******************************************************************************* + * This data structure holds secure world context that needs to be preserved + * across cpu_suspend calls which enter the power down state. + ******************************************************************************/ +typedef struct suspend_context { + unsigned int power_state; +} __aligned(CACHE_WRITEBACK_GRANULE) suspend_context_t; + +typedef aff_map_node_t (*mpidr_aff_map_nodes_t[MPIDR_MAX_AFFLVL]); +typedef unsigned int (*afflvl_power_on_finisher_t)(unsigned long, + aff_map_node_t *); + +/******************************************************************************* + * Data prototypes + ******************************************************************************/ +extern suspend_context_t psci_suspend_context[PSCI_NUM_AFFS]; +extern ns_entry_info_t psci_ns_entry_info[PSCI_NUM_AFFS]; +extern const plat_pm_ops_t *psci_plat_pm_ops; +extern aff_map_node_t psci_aff_map[PSCI_NUM_AFFS]; + +/******************************************************************************* + * 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 get_max_afflvl(void); +unsigned short psci_get_state(aff_map_node_t *node); +unsigned short psci_get_phys_state(aff_map_node_t *node); +void psci_set_state(aff_map_node_t *node, unsigned short state); +void psci_get_ns_entry_info(unsigned int index); +unsigned long mpidr_set_aff_inst(unsigned long, unsigned char, int); +int psci_validate_mpidr(unsigned long, int); +int get_power_on_target_afflvl(unsigned long mpidr); +void psci_afflvl_power_on_finish(unsigned long, + int, + int, + afflvl_power_on_finisher_t *); +int psci_set_ns_entry_info(unsigned int index, + unsigned long entrypoint, + unsigned long context_id); +int psci_check_afflvl_range(int start_afflvl, int end_afflvl); +void psci_acquire_afflvl_locks(unsigned long mpidr, + int start_afflvl, + int end_afflvl, + mpidr_aff_map_nodes_t mpidr_nodes); +void psci_release_afflvl_locks(unsigned long mpidr, + int start_afflvl, + int end_afflvl, + mpidr_aff_map_nodes_t mpidr_nodes); + +/* Private exported functions from psci_setup.c */ +int psci_get_aff_map_nodes(unsigned long mpidr, + int start_afflvl, + int end_afflvl, + mpidr_aff_map_nodes_t mpidr_nodes); +aff_map_node_t *psci_get_aff_map_node(unsigned long, int); + +/* Private exported functions from psci_affinity_on.c */ +int psci_afflvl_on(unsigned long, + unsigned long, + unsigned long, + int, + int); + +/* Private exported functions from psci_affinity_off.c */ +int psci_afflvl_off(unsigned long, int, int); + +/* Private exported functions from psci_affinity_suspend.c */ +void psci_set_suspend_power_state(aff_map_node_t *node, + unsigned int power_state); +int psci_get_aff_map_node_suspend_afflvl(aff_map_node_t *node); +int psci_afflvl_suspend(unsigned long, + unsigned long, + unsigned long, + unsigned int, + int, + int); +unsigned int psci_afflvl_suspend_finish(unsigned long, int, int); + + +#endif /* __PSCI_PRIVATE_H__ */ |