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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-09-09 GuEe-GUI The first version
*/
#ifndef __PSCI_H__
#define __PSCI_H__
#include <stdint.h>
/*
* Non-Confidential PSCI 1.0 release (30 January 2015), and errata fix for PSCI 0.2, unsupport PSCI 0.1
*/
#define PSCI_VER_0_2 0x00000002
/* PSCI 0.2 interface */
#define PSCI_0_2_FN_BASE 0x84000000
#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n))
#define PSCI_0_2_FN_END 0x8400001F
#define PSCI_0_2_FN64_BASE 0xC4000000
#define PSCI_0_2_FN64(n) (PSCI_0_2_FN64_BASE + (n))
#define PSCI_0_2_FN64_END 0xC400001F
#define PSCI_0_2_FN_PSCI_VERSION PSCI_0_2_FN(0)
#define PSCI_0_2_FN_CPU_SUSPEND PSCI_0_2_FN(1)
#define PSCI_0_2_FN_CPU_OFF PSCI_0_2_FN(2)
#define PSCI_0_2_FN_CPU_ON PSCI_0_2_FN(3)
#define PSCI_0_2_FN_AFFINITY_INFO PSCI_0_2_FN(4)
#define PSCI_0_2_FN_MIGRATE PSCI_0_2_FN(5)
#define PSCI_0_2_FN_MIGRATE_INFO_TYPE PSCI_0_2_FN(6)
#define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU PSCI_0_2_FN(7)
#define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8)
#define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9)
#define PSCI_0_2_FN64_CPU_SUSPEND PSCI_0_2_FN64(1)
#define PSCI_0_2_FN64_CPU_ON PSCI_0_2_FN64(3)
#define PSCI_0_2_FN64_AFFINITY_INFO PSCI_0_2_FN64(4)
#define PSCI_0_2_FN64_MIGRATE PSCI_0_2_FN64(5)
#define PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU PSCI_0_2_FN64(7)
/* PSCI 1.0 interface */
#define PSCI_1_0_FN_PSCI_FEATURES PSCI_0_2_FN(10)
#define PSCI_1_0_FN_CPU_FREEZE PSCI_0_2_FN(11)
#define PSCI_1_0_FN_CPU_DEFAULT_SUSPEND PSCI_0_2_FN(12)
#define PSCI_1_0_FN_NODE_HW_STATE PSCI_0_2_FN(13)
#define PSCI_1_0_FN_SYSTEM_SUSPEND PSCI_0_2_FN(14)
#define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15)
#define PSCI_1_0_FN_STAT_RESIDENCY PSCI_0_2_FN(16)
#define PSCI_1_0_FN_STAT_COUNT PSCI_0_2_FN(17)
#define PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND PSCI_0_2_FN64(12)
#define PSCI_1_0_FN64_NODE_HW_STATE PSCI_0_2_FN64(13)
#define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14)
#define PSCI_1_0_FN64_STAT_RESIDENCY PSCI_0_2_FN64(16)
#define PSCI_1_0_FN64_STAT_COUNT PSCI_0_2_FN64(17)
/* 1KB stack per core */
#define PSCI_STACK_SHIFT 10
#define PSCI_STACK_SIZE (1 << PSCI_STACK_SHIFT)
/* PSCI affinity level state returned by AFFINITY_INFO */
#define PSCI_AFFINITY_LEVEL_ON 0
#define PSCI_AFFINITY_LEVEL_OFF 1
#define PSCI_AFFINITY_LEVEL_ON_PENDING 2
/*
* PSCI power state
* power_level:
* Level 0: cores
* Level 1: clusters
* Level 2: system
* state_type:
* value 0: standby or retention state
* value 1: powerdown state(entry and context_id is valid)
* state_id:
* StateID
*/
#define PSCI_POWER_STATE(power_level, state_type, state_id) \
( \
((power_level) << 24) | \
((state_type) << 16) | \
((state_id) << 24) \
)
/*
* For system, cluster, core
* 0: run
* 1: standby(only core)
* 2: retention
* 3: powerdown
*/
#define PSCI_POWER_STATE_ID(state_id_power_level, system, cluster, core) \
( \
((state_id_power_level) << 12) | \
((system) << 8) | \
((cluster) << 4) | \
(core) \
)
#define PSCI_RET_SUCCESS 0
#define PSCI_RET_NOT_SUPPORTED (-1)
#define PSCI_RET_INVALID_PARAMETERS (-2)
#define PSCI_RET_DENIED (-3)
#define PSCI_RET_ALREADY_ON (-4)
#define PSCI_RET_ON_PENDING (-5)
#define PSCI_RET_INTERNAL_FAILURE (-6)
#define PSCI_RET_NOT_PRESENT (-7)
#define PSCI_RET_DISABLED (-8)
#define PSCI_RET_INVALID_ADDRESS (-9)
void arm_psci_init(uint64_t *platform_shutdown_args, uint64_t *platform_reboot_args);
uint32_t arm_psci_get_version();
uint32_t arm_psci_get_affinity_info(uint64_t target_affinity, uint64_t lowest_affinity_level);
uint32_t arm_psci_get_feature(uint32_t psci_func_id);
uint32_t arm_psci_cpu_off(uint64_t state);
uint32_t arm_psci_cpu_on(uint64_t mpid, uint64_t entry);
uint32_t arm_psci_cpu_suspend(uint32_t power_state, uint64_t entry);
void arm_psci_system_off();
void arm_psci_system_reboot();
#endif /*__PSCI_H__*/
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