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https://github.com/CTCaer/switch-l4t-atf.git
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64f6ea9be7
This patch implements ARM Standard Service as a runtime service and adds support for call count, UID and revision information SMCs. The existing PSCI implementation is subsumed by the Standard Service calls and all PSCI calls are therefore dispatched by the Standard Service to the PSCI handler. At present, PSCI is the only specification under Standard Service. Thus call count returns the number of PSCI calls implemented. As this is the initial implementation, a revision number of 0.1 is returned for call revision. Fixes ARM-software/tf-issues#62 Change-Id: I6d4273f72ad6502636efa0f872e288b191a64bc1
186 lines
7.4 KiB
C
186 lines
7.4 KiB
C
/*
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* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __PSCI_H__
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#define __PSCI_H__
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/*******************************************************************************
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* Defines for runtime services func ids
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******************************************************************************/
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#define PSCI_VERSION 0x84000000
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#define PSCI_CPU_SUSPEND_AARCH32 0x84000001
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#define PSCI_CPU_SUSPEND_AARCH64 0xc4000001
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#define PSCI_CPU_OFF 0x84000002
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#define PSCI_CPU_ON_AARCH32 0x84000003
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#define PSCI_CPU_ON_AARCH64 0xc4000003
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#define PSCI_AFFINITY_INFO_AARCH32 0x84000004
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#define PSCI_AFFINITY_INFO_AARCH64 0xc4000004
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#define PSCI_MIG_AARCH32 0x84000005
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#define PSCI_MIG_AARCH64 0xc4000005
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#define PSCI_MIG_INFO_TYPE 0x84000006
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#define PSCI_MIG_INFO_UP_CPU_AARCH32 0x84000007
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#define PSCI_MIG_INFO_UP_CPU_AARCH64 0xc4000007
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#define PSCI_SYSTEM_OFF 0x84000008
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#define PSCI_SYSTEM_RESET 0x84000009
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/*
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* Number of PSCI calls (above) implemented. System off and reset aren't
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* implemented as yet
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*/
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#define PSCI_NUM_CALLS 13
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/*******************************************************************************
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* PSCI Migrate and friends
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******************************************************************************/
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#define PSCI_TOS_UP_MIG_CAP 0
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#define PSCI_TOS_NOT_UP_MIG_CAP 1
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#define PSCI_TOS_NOT_PRESENT_MP 2
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/*******************************************************************************
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* PSCI CPU_SUSPEND 'power_state' parameter specific defines
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******************************************************************************/
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#define PSTATE_ID_SHIFT 0
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#define PSTATE_TYPE_SHIFT 16
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#define PSTATE_AFF_LVL_SHIFT 24
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#define PSTATE_ID_MASK 0xffff
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#define PSTATE_TYPE_MASK 0x1
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#define PSTATE_AFF_LVL_MASK 0x3
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#define psci_get_pstate_id(pstate) (pstate >> PSTATE_ID_SHIFT) & \
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PSTATE_ID_MASK
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#define psci_get_pstate_type(pstate) (pstate >> PSTATE_TYPE_SHIFT) & \
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PSTATE_TYPE_MASK
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#define psci_get_pstate_afflvl(pstate) (pstate >> PSTATE_AFF_LVL_SHIFT) & \
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PSTATE_AFF_LVL_MASK
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/*******************************************************************************
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* PSCI version
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******************************************************************************/
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#define PSCI_MAJOR_VER (0 << 16)
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#define PSCI_MINOR_VER 0x2
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/*******************************************************************************
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* PSCI error codes
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******************************************************************************/
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#define PSCI_E_SUCCESS 0
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#define PSCI_E_NOT_SUPPORTED -1
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#define PSCI_E_INVALID_PARAMS -2
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#define PSCI_E_DENIED -3
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#define PSCI_E_ALREADY_ON -4
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#define PSCI_E_ON_PENDING -5
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#define PSCI_E_INTERN_FAIL -6
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#define PSCI_E_NOT_PRESENT -7
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#define PSCI_E_DISABLED -8
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/*******************************************************************************
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* PSCI affinity state related constants. An affinity instance could be present
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* or absent physically to cater for asymmetric topologies. If present then it
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* could in one of the 4 further defined states.
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******************************************************************************/
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#define PSCI_STATE_SHIFT 1
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#define PSCI_STATE_MASK 0xff
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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 0x0
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#define PSCI_STATE_OFF 0x1
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#define PSCI_STATE_ON_PENDING 0x2
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#define PSCI_STATE_SUSPEND 0x3
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#define get_phys_state(x) (x != PSCI_STATE_ON ? \
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PSCI_STATE_OFF : PSCI_STATE_ON)
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/* Number of affinity instances whose state this psci imp. can track */
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#define PSCI_NUM_AFFS 32ull
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#ifndef __ASSEMBLY__
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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 {
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int (*affinst_standby)(unsigned int);
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int (*affinst_on)(unsigned long,
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unsigned long,
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unsigned long,
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unsigned int,
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unsigned int);
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int (*affinst_off)(unsigned long, unsigned int, unsigned int);
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int (*affinst_suspend)(unsigned long,
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unsigned long,
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unsigned long,
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unsigned int,
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unsigned int);
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int (*affinst_on_finish)(unsigned long, unsigned int, unsigned int);
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int (*affinst_suspend_finish)(unsigned long,
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unsigned int,
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unsigned int);
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} plat_pm_ops;
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/*******************************************************************************
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* Optional structure populated by the Secure Payload Dispatcher to be given a
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* chance to perform any bookkeeping before PSCI executes a power mgmt.
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* operation. It also allows PSCI to determine certain properties of the SP e.g.
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* migrate capability etc.
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******************************************************************************/
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typedef struct {
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void (*svc_on)(uint64_t target_cpu);
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int32_t (*svc_off)(uint64_t __unused);
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void (*svc_suspend)(uint64_t power_state);
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void (*svc_on_finish)(uint64_t __unused);
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void (*svc_suspend_finish)(uint64_t suspend_level);
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void (*svc_migrate)(uint64_t __unused1, uint64_t __unused2);
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int32_t (*svc_migrate_info)(uint64_t *__unused);
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} spd_pm_ops;
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/*******************************************************************************
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* Function & Data prototypes
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******************************************************************************/
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extern unsigned int psci_version(void);
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extern int __psci_cpu_suspend(unsigned int, unsigned long, unsigned long);
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extern int __psci_cpu_off(void);
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extern int psci_affinity_info(unsigned long, unsigned int);
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extern int psci_migrate(unsigned int);
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extern unsigned int psci_migrate_info_type(void);
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extern unsigned long psci_migrate_info_up_cpu(void);
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extern void psci_system_off(void);
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extern void psci_system_reset(void);
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extern int psci_cpu_on(unsigned long,
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unsigned long,
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unsigned long);
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extern void psci_aff_on_finish_entry(void);
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extern void psci_aff_suspend_finish_entry(void);
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extern void psci_register_spd_pm_hook(const spd_pm_ops *);
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#endif /*__ASSEMBLY__*/
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#endif /* __PSCI_H__ */
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