1 /* 2 * Copyright (c) 2015-2022, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef CSS_PM_H 8 #define CSS_PM_H 9 10 #include <cdefs.h> 11 #include <stdint.h> 12 13 #include <lib/psci/psci.h> 14 15 /* SGI used to trigger per-core power down request */ 16 #define CSS_CPU_PWR_DOWN_REQ_INTR ARM_IRQ_SEC_SGI_7 17 18 /* Macros to read the CSS power domain state */ 19 #define CSS_CORE_PWR_STATE(state) (state)->pwr_domain_state[ARM_PWR_LVL0] 20 #define CSS_CLUSTER_PWR_STATE(state) (state)->pwr_domain_state[ARM_PWR_LVL1] 21 css_system_pwr_state(const psci_power_state_t * state)22static inline unsigned int css_system_pwr_state(const psci_power_state_t *state) 23 { 24 #if (PLAT_MAX_PWR_LVL == CSS_SYSTEM_PWR_DMN_LVL) 25 return state->pwr_domain_state[CSS_SYSTEM_PWR_DMN_LVL]; 26 #else 27 return 0; 28 #endif 29 } 30 31 int css_pwr_domain_on(u_register_t mpidr); 32 void css_pwr_domain_on_finish(const psci_power_state_t *target_state); 33 void css_pwr_domain_on_finish_late(const psci_power_state_t *target_state); 34 void css_pwr_domain_off(const psci_power_state_t *target_state); 35 void css_pwr_domain_suspend(const psci_power_state_t *target_state); 36 void css_pwr_domain_suspend_finish( 37 const psci_power_state_t *target_state); 38 void __dead2 css_system_off(void); 39 void __dead2 css_system_reset(void); 40 void css_cpu_standby(plat_local_state_t cpu_state); 41 void css_get_sys_suspend_power_state(psci_power_state_t *req_state); 42 int css_node_hw_state(u_register_t mpidr, unsigned int power_level); 43 void css_setup_cpu_pwr_down_intr(void); 44 int css_reboot_interrupt_handler(uint32_t intr_raw, uint32_t flags, 45 void *handle, void *cookie); 46 47 /* 48 * This mapping array has to be exported by the platform. Each element at 49 * a given index maps that core to an SCMI power domain. 50 */ 51 extern const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[]; 52 53 #define SCMI_DOMAIN_ID_MASK U(0xFFFF) 54 #define SCMI_CHANNEL_ID_MASK U(0xFFFF) 55 #define SCMI_CHANNEL_ID_SHIFT U(16) 56 57 #define SET_SCMI_CHANNEL_ID(n) (((n) & SCMI_CHANNEL_ID_MASK) << \ 58 SCMI_CHANNEL_ID_SHIFT) 59 #define SET_SCMI_DOMAIN_ID(n) ((n) & SCMI_DOMAIN_ID_MASK) 60 #define GET_SCMI_CHANNEL_ID(n) (((n) >> SCMI_CHANNEL_ID_SHIFT) & \ 61 SCMI_CHANNEL_ID_MASK) 62 #define GET_SCMI_DOMAIN_ID(n) ((n) & SCMI_DOMAIN_ID_MASK) 63 64 #endif /* CSS_PM_H */ 65