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authorFerass El Hafidi <vitali64pmemail@protonmail.com>2023-05-08 19:03:10 +0200
committerFerass El Hafidi <vitali64pmemail@protonmail.com>2023-05-08 19:03:10 +0200
commitf9ed707f171c8069e99e24e24c3da73d8b6f5716 (patch)
tree4da9838d387c8bc260e83f3f51f5dfa83e0b48ae /services/std_svc/psci/psci_private.h
downloadamlogic-bl2-master.tar.gz
Push old Amlogic BL2 sourcesHEADmaster
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+/*
+ * 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__ */