1#ifndef _ASM_SH_SUSPEND_H
2#define _ASM_SH_SUSPEND_H
3
4#ifndef __ASSEMBLY__
5#include <linux/notifier.h>
6
7#include <asm/ptrace.h>
8
9struct swsusp_arch_regs {
10	struct pt_regs user_regs;
11	unsigned long bank1_regs[8];
12};
13
14void sh_mobile_call_standby(unsigned long mode);
15
16#ifdef CONFIG_CPU_IDLE
17int sh_mobile_setup_cpuidle(void);
18#else
19static inline int sh_mobile_setup_cpuidle(void) { return 0; }
20#endif
21
22/* notifier chains for pre/post sleep hooks */
23extern struct atomic_notifier_head sh_mobile_pre_sleep_notifier_list;
24extern struct atomic_notifier_head sh_mobile_post_sleep_notifier_list;
25
26/* priority levels for notifiers */
27#define SH_MOBILE_SLEEP_BOARD	0
28#define SH_MOBILE_SLEEP_CPU	1
29#define SH_MOBILE_PRE(x)	(x)
30#define SH_MOBILE_POST(x)	(-(x))
31
32/* board code registration function for self-refresh assembly snippets */
33void sh_mobile_register_self_refresh(unsigned long flags,
34				     void *pre_start, void *pre_end,
35				     void *post_start, void *post_end);
36
37/* register structure for address/data information */
38struct sh_sleep_regs {
39	unsigned long stbcr;
40	unsigned long bar;
41
42	/* MMU */
43	unsigned long pteh;
44	unsigned long ptel;
45	unsigned long ttb;
46	unsigned long tea;
47	unsigned long mmucr;
48	unsigned long ptea;
49	unsigned long pascr;
50	unsigned long irmcr;
51
52	/* Cache */
53	unsigned long ccr;
54	unsigned long ramcr;
55};
56
57/* data area for low-level sleep code */
58struct sh_sleep_data {
59	/* current sleep mode (SUSP_SH_...) */
60	unsigned long mode;
61
62	/* addresses of board specific self-refresh snippets */
63	unsigned long sf_pre;
64	unsigned long sf_post;
65
66	/* address of resume code */
67	unsigned long resume;
68
69	/* register state saved and restored by the assembly code */
70	unsigned long vbr;
71	unsigned long spc;
72	unsigned long sr;
73	unsigned long sp;
74
75	/* structure for keeping register addresses */
76	struct sh_sleep_regs addr;
77
78	/* structure for saving/restoring register state */
79	struct sh_sleep_regs data;
80};
81
82/* a bitmap of supported sleep modes (SUSP_SH..) */
83extern unsigned long sh_mobile_sleep_supported;
84
85#endif
86
87/* flags passed to assembly suspend code */
88#define SUSP_SH_SLEEP		(1 << 0) /* Regular sleep mode */
89#define SUSP_SH_STANDBY		(1 << 1) /* SH-Mobile Software standby mode */
90#define SUSP_SH_RSTANDBY	(1 << 2) /* SH-Mobile R-standby mode */
91#define SUSP_SH_USTANDBY	(1 << 3) /* SH-Mobile U-standby mode */
92#define SUSP_SH_SF		(1 << 4) /* Enable self-refresh */
93#define SUSP_SH_MMU		(1 << 5) /* Save/restore MMU and cache */
94#define SUSP_SH_REGS		(1 << 6) /* Save/restore registers */
95
96#endif /* _ASM_SH_SUSPEND_H */
97