From 4a327fcef90ba27150a3e8741441b68c605ae248 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Sat, 26 Mar 2016 05:33:09 -0300 Subject: Add TuxOnIce support adapted for the 4.5-gnu kernel version --- kernel/power/tuxonice.h | 260 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 260 insertions(+) create mode 100644 kernel/power/tuxonice.h (limited to 'kernel/power/tuxonice.h') diff --git a/kernel/power/tuxonice.h b/kernel/power/tuxonice.h new file mode 100644 index 000000000..10b65633f --- /dev/null +++ b/kernel/power/tuxonice.h @@ -0,0 +1,260 @@ +/* + * kernel/power/tuxonice.h + * + * Copyright (C) 2004-2015 Nigel Cunningham (nigel at nigelcunningham com au) + * + * This file is released under the GPLv2. + * + * It contains declarations used throughout swsusp. + * + */ + +#ifndef KERNEL_POWER_TOI_H +#define KERNEL_POWER_TOI_H + +#include +#include +#include +#include +#include +#include "tuxonice_pageflags.h" +#include "power.h" + +#define TOI_CORE_VERSION "3.3" +#define TOI_HEADER_VERSION 3 +#define MY_BOOT_KERNEL_DATA_VERSION 4 + +struct toi_boot_kernel_data { + int version; + int size; + unsigned long toi_action; + unsigned long toi_debug_state; + u32 toi_default_console_level; + int toi_io_time[2][2]; + char toi_nosave_commandline[COMMAND_LINE_SIZE]; + unsigned long pages_used[33]; + unsigned long incremental_bytes_in; + unsigned long incremental_bytes_out; + unsigned long compress_bytes_in; + unsigned long compress_bytes_out; + unsigned long pruned_pages; +}; + +extern struct toi_boot_kernel_data toi_bkd; + +/* Location of book kernel data struct in kernel being resumed */ +extern unsigned long boot_kernel_data_buffer; + +/* == Action states == */ + +enum { + TOI_REBOOT, + TOI_PAUSE, + TOI_LOGALL, + TOI_CAN_CANCEL, + TOI_KEEP_IMAGE, + TOI_FREEZER_TEST, + TOI_SINGLESTEP, + TOI_PAUSE_NEAR_PAGESET_END, + TOI_TEST_FILTER_SPEED, + TOI_TEST_BIO, + TOI_NO_PAGESET2, + TOI_IGNORE_ROOTFS, + TOI_REPLACE_SWSUSP, + TOI_PAGESET2_FULL, + TOI_ABORT_ON_RESAVE_NEEDED, + TOI_NO_MULTITHREADED_IO, + TOI_NO_DIRECT_LOAD, /* Obsolete */ + TOI_LATE_CPU_HOTPLUG, /* Obsolete */ + TOI_GET_MAX_MEM_ALLOCD, + TOI_NO_FLUSHER_THREAD, + TOI_NO_PS2_IF_UNNEEDED, + TOI_POST_RESUME_BREAKPOINT, + TOI_NO_READAHEAD, + TOI_TRACE_DEBUG_ON, + TOI_INCREMENTAL_IMAGE, +}; + +extern unsigned long toi_bootflags_mask; + +#define clear_action_state(bit) (test_and_clear_bit(bit, &toi_bkd.toi_action)) + +/* == Result states == */ + +enum { + TOI_ABORTED, + TOI_ABORT_REQUESTED, + TOI_NOSTORAGE_AVAILABLE, + TOI_INSUFFICIENT_STORAGE, + TOI_FREEZING_FAILED, + TOI_KEPT_IMAGE, + TOI_WOULD_EAT_MEMORY, + TOI_UNABLE_TO_FREE_ENOUGH_MEMORY, + TOI_PM_SEM, + TOI_DEVICE_REFUSED, + TOI_SYSDEV_REFUSED, + TOI_EXTRA_PAGES_ALLOW_TOO_SMALL, + TOI_UNABLE_TO_PREPARE_IMAGE, + TOI_FAILED_MODULE_INIT, + TOI_FAILED_MODULE_CLEANUP, + TOI_FAILED_IO, + TOI_OUT_OF_MEMORY, + TOI_IMAGE_ERROR, + TOI_PLATFORM_PREP_FAILED, + TOI_CPU_HOTPLUG_FAILED, + TOI_ARCH_PREPARE_FAILED, /* Removed Linux-3.0 */ + TOI_RESAVE_NEEDED, + TOI_CANT_SUSPEND, + TOI_NOTIFIERS_PREPARE_FAILED, + TOI_PRE_SNAPSHOT_FAILED, + TOI_PRE_RESTORE_FAILED, + TOI_USERMODE_HELPERS_ERR, + TOI_CANT_USE_ALT_RESUME, + TOI_HEADER_TOO_BIG, + TOI_WAKEUP_EVENT, + TOI_SYSCORE_REFUSED, + TOI_DPM_PREPARE_FAILED, + TOI_DPM_SUSPEND_FAILED, + TOI_NUM_RESULT_STATES /* Used in printing debug info only */ +}; + +extern unsigned long toi_result; + +#define set_result_state(bit) (test_and_set_bit(bit, &toi_result)) +#define set_abort_result(bit) (test_and_set_bit(TOI_ABORTED, &toi_result), \ + test_and_set_bit(bit, &toi_result)) +#define clear_result_state(bit) (test_and_clear_bit(bit, &toi_result)) +#define test_result_state(bit) (test_bit(bit, &toi_result)) + +/* == Debug sections and levels == */ + +/* debugging levels. */ +enum { + TOI_STATUS = 0, + TOI_ERROR = 2, + TOI_LOW, + TOI_MEDIUM, + TOI_HIGH, + TOI_VERBOSE, +}; + +enum { + TOI_ANY_SECTION, + TOI_EAT_MEMORY, + TOI_IO, + TOI_HEADER, + TOI_WRITER, + TOI_MEMORY, + TOI_PAGEDIR, + TOI_COMPRESS, + TOI_BIO, +}; + +#define set_debug_state(bit) (test_and_set_bit(bit, &toi_bkd.toi_debug_state)) +#define clear_debug_state(bit) \ + (test_and_clear_bit(bit, &toi_bkd.toi_debug_state)) +#define test_debug_state(bit) (test_bit(bit, &toi_bkd.toi_debug_state)) + +/* == Steps in hibernating == */ + +enum { + STEP_HIBERNATE_PREPARE_IMAGE, + STEP_HIBERNATE_SAVE_IMAGE, + STEP_HIBERNATE_POWERDOWN, + STEP_RESUME_CAN_RESUME, + STEP_RESUME_LOAD_PS1, + STEP_RESUME_DO_RESTORE, + STEP_RESUME_READ_PS2, + STEP_RESUME_GO, + STEP_RESUME_ALT_IMAGE, + STEP_CLEANUP, + STEP_QUIET_CLEANUP +}; + +/* == TuxOnIce states == + (see also include/linux/suspend.h) */ + +#define get_toi_state() (toi_state) +#define restore_toi_state(saved_state) \ + do { toi_state = saved_state; } while (0) + +/* == Module support == */ + +struct toi_core_fns { + int (*post_context_save)(void); + unsigned long (*get_nonconflicting_page)(void); + int (*try_hibernate)(void); + void (*try_resume)(void); +}; + +extern struct toi_core_fns *toi_core_fns; + +/* == All else == */ +#define KB(x) ((x) << (PAGE_SHIFT - 10)) +#define MB(x) ((x) >> (20 - PAGE_SHIFT)) + +extern int toi_start_anything(int toi_or_resume); +extern void toi_finish_anything(int toi_or_resume); + +extern int save_image_part1(void); +extern int toi_atomic_restore(void); + +extern int toi_try_hibernate(void); +extern void toi_try_resume(void); + +extern int __toi_post_context_save(void); + +extern unsigned int nr_hibernates; +extern char alt_resume_param[256]; + +extern void copyback_post(void); +extern int toi_hibernate(void); +extern unsigned long extra_pd1_pages_used; + +#define SECTOR_SIZE 512 + +extern void toi_early_boot_message(int can_erase_image, int default_answer, + char *warning_reason, ...); + +extern int do_check_can_resume(void); +extern int do_toi_step(int step); +extern int toi_launch_userspace_program(char *command, int channel_no, + int wait, int debug); + +extern char tuxonice_signature[9]; + +extern int toi_start_other_threads(void); +extern void toi_stop_other_threads(void); + +extern int toi_trace_index; +#define TOI_TRACE_DEBUG(PFN, DESC, ...) \ + do { \ + if (test_action_state(TOI_TRACE_DEBUG_ON)) { \ + printk("*TOI* %ld %02d" DESC "\n", PFN, toi_trace_index, ##__VA_ARGS__); \ + } \ + } while(0) + +#ifdef CONFIG_TOI_KEEP_IMAGE +#define toi_keeping_image (test_action_state(TOI_KEEP_IMAGE) || test_action_state(TOI_INCREMENTAL_IMAGE)) +#else +#define toi_keeping_image (0) +#endif + +#ifdef CONFIG_TOI_INCREMENTAL +extern void toi_reset_dirtiness_one(unsigned long pfn, int verbose); +extern int toi_reset_dirtiness(int verbose); +extern void toi_cbw_write(void); +extern void toi_cbw_restore(void); +extern int toi_allocate_cbw_data(void); +extern void toi_free_cbw_data(void); +extern int toi_cbw_init(void); +extern void toi_mark_tasks_cbw(void); +#else +static inline int toi_reset_dirtiness(int verbose) { return 0; } +#define toi_cbw_write() do { } while(0) +#define toi_cbw_restore() do { } while(0) +#define toi_allocate_cbw_data() do { } while(0) +#define toi_free_cbw_data() do { } while(0) +static inline int toi_cbw_init(void) { return 0; } +#endif +#endif -- cgit v1.2.3