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https://github.com/ARM-software/arm-trusted-firmware.git
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1083b2b315
Also change header guards to fix defects of MISRA C-2012 Rule 21.1. Change-Id: Ied0d4b0e557ef6119ab669d106d2ac5d99620c57 Acked-by: Sumit Garg <sumit.garg@linaro.org> Acked-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/*
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* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef PSCI_COMPAT_H
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#define PSCI_COMPAT_H
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#include <arch.h>
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#include <platform_def.h>
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#include <utils_def.h>
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#ifndef __ASSEMBLY__
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/*
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* The below declarations are to enable compatibility for the platform ports
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* using the old platform interface and psci helpers.
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*/
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#define PLAT_MAX_PWR_LVL PLATFORM_MAX_AFFLVL
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#define PLAT_NUM_PWR_DOMAINS PLATFORM_NUM_AFFS
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/*******************************************************************************
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* PSCI affinity related constants. An affinity instance could
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* be present or absent physically to cater for asymmetric topologies.
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******************************************************************************/
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#define PSCI_AFF_ABSENT 0x0
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#define PSCI_AFF_PRESENT 0x1
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#define PSCI_STATE_ON U(0x0)
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#define PSCI_STATE_OFF U(0x1)
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#define PSCI_STATE_ON_PENDING U(0x2)
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#define PSCI_STATE_SUSPEND U(0x3)
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/*
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* Using the compatibility platform interfaces means that the local states
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* used in psci_power_state_t need to only convey whether its power down
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* or standby state. The onus is on the platform port to do the right thing
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* including the state coordination in case multiple power down states are
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* involved. Hence if we assume 3 generic states viz, run, standby and
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* power down, we can assign 1 and 2 to standby and power down respectively.
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*/
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#define PLAT_MAX_RET_STATE U(1)
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#define PLAT_MAX_OFF_STATE U(2)
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/*
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* Macro to represent invalid affinity level within PSCI.
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*/
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#define PSCI_INVALID_DATA -1
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#define psci_get_pstate_afflvl(pstate) psci_get_pstate_pwrlvl(pstate)
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/*
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* This array stores the 'power_state' requests of each CPU during
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* CPU_SUSPEND and SYSTEM_SUSPEND which will be populated by the
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* compatibility layer when appropriate platform hooks are invoked.
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*/
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extern unsigned int psci_power_state_compat[PLATFORM_CORE_COUNT];
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/*******************************************************************************
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* Structure populated by platform specific code to export routines which
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* perform common low level pm functions
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******************************************************************************/
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typedef struct plat_pm_ops {
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void (*affinst_standby)(unsigned int power_state);
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int (*affinst_on)(unsigned long mpidr,
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unsigned long sec_entrypoint,
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unsigned int afflvl,
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unsigned int state);
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void (*affinst_off)(unsigned int afflvl, unsigned int state);
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void (*affinst_suspend)(unsigned long sec_entrypoint,
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unsigned int afflvl,
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unsigned int state);
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void (*affinst_on_finish)(unsigned int afflvl, unsigned int state);
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void (*affinst_suspend_finish)(unsigned int afflvl,
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unsigned int state);
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void (*system_off)(void) __dead2;
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void (*system_reset)(void) __dead2;
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int (*validate_power_state)(unsigned int power_state);
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int (*validate_ns_entrypoint)(unsigned long ns_entrypoint);
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unsigned int (*get_sys_suspend_power_state)(void);
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} plat_pm_ops_t;
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/*******************************************************************************
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* Function & Data prototypes to enable compatibility for older platform ports
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******************************************************************************/
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int psci_get_suspend_stateid_by_mpidr(unsigned long);
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int psci_get_suspend_stateid(void);
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int psci_get_suspend_powerstate(void);
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unsigned int psci_get_max_phys_off_afflvl(void);
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int psci_get_suspend_afflvl(void);
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#endif /* ____ASSEMBLY__ */
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#endif /* PSCI_COMPAT_H */
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