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