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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_SH_SUSPEND_H
#define _ASM_SH_SUSPEND_H
#ifndef __ASSEMBLY__
#include <linux/notifier.h>
#include <asm/ptrace.h>
struct swsusp_arch_regs {
struct pt_regs user_regs;
unsigned long bank1_regs[8];
};
void sh_mobile_call_standby(unsigned long mode);
#ifdef CONFIG_CPU_IDLE
int sh_mobile_setup_cpuidle(void);
#else
static inline int sh_mobile_setup_cpuidle(void) { return 0; }
#endif
/* notifier chains for pre/post sleep hooks */
extern struct atomic_notifier_head sh_mobile_pre_sleep_notifier_list;
extern struct atomic_notifier_head sh_mobile_post_sleep_notifier_list;
/* priority levels for notifiers */
#define SH_MOBILE_SLEEP_BOARD 0
#define SH_MOBILE_SLEEP_CPU 1
#define SH_MOBILE_PRE(x) (x)
#define SH_MOBILE_POST(x) (-(x))
/* board code registration function for self-refresh assembly snippets */
void sh_mobile_register_self_refresh(unsigned long flags,
void *pre_start, void *pre_end,
void *post_start, void *post_end);
/* register structure for address/data information */
struct sh_sleep_regs {
unsigned long stbcr;
unsigned long bar;
/* MMU */
unsigned long pteh;
unsigned long ptel;
unsigned long ttb;
unsigned long tea;
unsigned long mmucr;
unsigned long ptea;
unsigned long pascr;
unsigned long irmcr;
/* Cache */
unsigned long ccr;
unsigned long ramcr;
};
/* data area for low-level sleep code */
struct sh_sleep_data {
/* current sleep mode (SUSP_SH_...) */
unsigned long mode;
/* addresses of board specific self-refresh snippets */
unsigned long sf_pre;
unsigned long sf_post;
/* address of resume code */
unsigned long resume;
/* register state saved and restored by the assembly code */
unsigned long vbr;
unsigned long spc;
unsigned long sr;
unsigned long sp;
/* structure for keeping register addresses */
struct sh_sleep_regs addr;
/* structure for saving/restoring register state */
struct sh_sleep_regs data;
};
/* a bitmap of supported sleep modes (SUSP_SH..) */
extern unsigned long sh_mobile_sleep_supported;
#endif
/* flags passed to assembly suspend code */
#define SUSP_SH_SLEEP (1 << 0) /* Regular sleep mode */
#define SUSP_SH_STANDBY (1 << 1) /* SH-Mobile Software standby mode */
#define SUSP_SH_RSTANDBY (1 << 2) /* SH-Mobile R-standby mode */
#define SUSP_SH_USTANDBY (1 << 3) /* SH-Mobile U-standby mode */
#define SUSP_SH_SF (1 << 4) /* Enable self-refresh */
#define SUSP_SH_MMU (1 << 5) /* Save/restore MMU and cache */
#define SUSP_SH_REGS (1 << 6) /* Save/restore registers */
#endif /* _ASM_SH_SUSPEND_H */