suspend.h (0def12f32129c774f2cd598e326cc4b473da927b) suspend.h (c0317210012e3b985779ddd92a7c5db8424e1e97)
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2021 Western Digital Corporation or its affiliates.
4 * Copyright (c) 2022 Ventana Micro Systems Inc.
5 */
6
7#ifndef _ASM_RISCV_SUSPEND_H
8#define _ASM_RISCV_SUSPEND_H

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16 unsigned long scratch;
17 unsigned long tvec;
18 unsigned long ie;
19#ifdef CONFIG_MMU
20 unsigned long satp;
21#endif
22};
23
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2021 Western Digital Corporation or its affiliates.
4 * Copyright (c) 2022 Ventana Micro Systems Inc.
5 */
6
7#ifndef _ASM_RISCV_SUSPEND_H
8#define _ASM_RISCV_SUSPEND_H

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16 unsigned long scratch;
17 unsigned long tvec;
18 unsigned long ie;
19#ifdef CONFIG_MMU
20 unsigned long satp;
21#endif
22};
23
24/*
25 * Used by hibernation core and cleared during resume sequence
26 */
27extern int in_suspend;
28
24/* Low-level CPU suspend entry function */
25int __cpu_suspend_enter(struct suspend_context *context);
26
27/* High-level CPU suspend which will save context and call finish() */
28int cpu_suspend(unsigned long arg,
29 int (*finish)(unsigned long arg,
30 unsigned long entry,
31 unsigned long context));
32
33/* Low-level CPU resume entry function */
34int __cpu_resume_enter(unsigned long hartid, unsigned long context);
35
36/* Used to save and restore the CSRs */
37void suspend_save_csrs(struct suspend_context *context);
38void suspend_restore_csrs(struct suspend_context *context);
29/* Low-level CPU suspend entry function */
30int __cpu_suspend_enter(struct suspend_context *context);
31
32/* High-level CPU suspend which will save context and call finish() */
33int cpu_suspend(unsigned long arg,
34 int (*finish)(unsigned long arg,
35 unsigned long entry,
36 unsigned long context));
37
38/* Low-level CPU resume entry function */
39int __cpu_resume_enter(unsigned long hartid, unsigned long context);
40
41/* Used to save and restore the CSRs */
42void suspend_save_csrs(struct suspend_context *context);
43void suspend_restore_csrs(struct suspend_context *context);
44
45/* Low-level API to support hibernation */
46int swsusp_arch_suspend(void);
47int swsusp_arch_resume(void);
48int arch_hibernation_header_save(void *addr, unsigned int max_size);
49int arch_hibernation_header_restore(void *addr);
50int __hibernate_cpu_resume(void);
51
52/* Used to resume on the CPU we hibernated on */
53int hibernate_resume_nonboot_cpu_disable(void);
54
55asmlinkage void hibernate_restore_image(unsigned long resume_satp, unsigned long satp_temp,
56 unsigned long cpu_resume);
57asmlinkage int hibernate_core_restore_code(void);
39#endif
58#endif