cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

pm.h (2570B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (c) 2004 Simtec Electronics
      4 *	http://armlinux.simtec.co.uk/
      5 *	Written by Ben Dooks, <ben@simtec.co.uk>
      6 */
      7
      8/* s3c_pm_init
      9 *
     10 * called from board at initialisation time to setup the power
     11 * management
     12*/
     13
     14#include "pm-common.h"
     15
     16struct device;
     17
     18#ifdef CONFIG_SAMSUNG_PM
     19
     20extern __init int s3c_pm_init(void);
     21extern __init int s3c64xx_pm_init(void);
     22
     23#else
     24
     25static inline int s3c_pm_init(void)
     26{
     27	return 0;
     28}
     29
     30static inline int s3c64xx_pm_init(void)
     31{
     32	return 0;
     33}
     34#endif
     35
     36/* configuration for the IRQ mask over sleep */
     37extern unsigned long s3c_irqwake_intmask;
     38extern unsigned long s3c_irqwake_eintmask;
     39
     40/* per-cpu sleep functions */
     41
     42extern void (*pm_cpu_prep)(void);
     43extern int (*pm_cpu_sleep)(unsigned long);
     44
     45/* Flags for PM Control */
     46
     47extern unsigned long s3c_pm_flags;
     48
     49/* from sleep.S */
     50
     51extern int s3c2410_cpu_suspend(unsigned long);
     52
     53#ifdef CONFIG_PM_SLEEP
     54extern int s3c_irq_wake(struct irq_data *data, unsigned int state);
     55extern void s3c_cpu_resume(void);
     56#else
     57#define s3c_irq_wake NULL
     58#define s3c_cpu_resume NULL
     59#endif
     60
     61#ifdef CONFIG_SAMSUNG_PM
     62extern int s3c_irqext_wake(struct irq_data *data, unsigned int state);
     63#else
     64#define s3c_irqext_wake NULL
     65#endif
     66
     67#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
     68/**
     69 * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs
     70 * @set: set bits for the state of the LEDs
     71 * @clear: clear bits for the state of the LEDs.
     72 */
     73extern void s3c_pm_debug_smdkled(u32 set, u32 clear);
     74
     75#else
     76static inline void s3c_pm_debug_smdkled(u32 set, u32 clear) { }
     77#endif /* CONFIG_S3C_PM_DEBUG_LED_SMDK */
     78
     79/**
     80 * s3c_pm_configure_extint() - ensure pins are correctly set for IRQ
     81 *
     82 * Setup all the necessary GPIO pins for waking the system on external
     83 * interrupt.
     84 */
     85extern void s3c_pm_configure_extint(void);
     86
     87#ifdef CONFIG_GPIO_SAMSUNG
     88/**
     89 * samsung_pm_restore_gpios() - restore the state of the gpios after sleep.
     90 *
     91 * Restore the state of the GPIO pins after sleep, which may involve ensuring
     92 * that we do not glitch the state of the pins from that the bootloader's
     93 * resume code has done.
     94*/
     95extern void samsung_pm_restore_gpios(void);
     96
     97/**
     98 * samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep.
     99 *
    100 * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios().
    101 */
    102extern void samsung_pm_save_gpios(void);
    103#else
    104static inline void samsung_pm_restore_gpios(void) {}
    105static inline void samsung_pm_save_gpios(void) {}
    106#endif
    107
    108extern void s3c_pm_save_core(void);
    109extern void s3c_pm_restore_core(void);