| /* SPDX-License-Identifier: BSD-2-Clause */ |
| /* |
| * Copyright 2017 NXP |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. 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. |
| * |
| * 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 SM_PM_H |
| #define SM_PM_H |
| #include <stdint.h> |
| #include <types_ext.h> |
| |
| struct sm_pm_ctx { |
| uint32_t sp; |
| paddr_t cpu_resume_addr; |
| uint32_t suspend_regs[16]; |
| }; |
| |
| /* suspend/resume core functions */ |
| void sm_pm_cpu_suspend_save(struct sm_pm_ctx *ptr, uint32_t sp); |
| void sm_pm_cpu_do_suspend(uint32_t *ptr); |
| void sm_pm_cpu_do_resume(void); |
| |
| /* |
| * Exported to platform suspend, arg will be passed to fn as r0 |
| * Return value: 0 - cpu resumed from suspended state. |
| * -1 - cpu not suspended. |
| */ |
| int sm_pm_cpu_suspend(uint32_t arg, int (*fn)(uint32_t)); |
| #endif |