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-rw-r--r--kernel/power/tuxonice_builtin.c498
1 files changed, 0 insertions, 498 deletions
diff --git a/kernel/power/tuxonice_builtin.c b/kernel/power/tuxonice_builtin.c
deleted file mode 100644
index 0a6733ae0..000000000
--- a/kernel/power/tuxonice_builtin.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- * Copyright (C) 2004-2015 Nigel Cunningham (nigel at nigelcunningham com au)
- *
- * This file is released under the GPLv2.
- */
-#include <linux/kernel.h>
-#include <linux/swap.h>
-#include <linux/syscalls.h>
-#include <linux/bio.h>
-#include <linux/root_dev.h>
-#include <linux/freezer.h>
-#include <linux/reboot.h>
-#include <linux/writeback.h>
-#include <linux/tty.h>
-#include <linux/crypto.h>
-#include <linux/cpu.h>
-#include <linux/ctype.h>
-#include <linux/kthread.h>
-#include "tuxonice_io.h"
-#include "tuxonice.h"
-#include "tuxonice_extent.h"
-#include "tuxonice_netlink.h"
-#include "tuxonice_prepare_image.h"
-#include "tuxonice_ui.h"
-#include "tuxonice_sysfs.h"
-#include "tuxonice_pagedir.h"
-#include "tuxonice_modules.h"
-#include "tuxonice_builtin.h"
-#include "tuxonice_power_off.h"
-#include "tuxonice_alloc.h"
-
-unsigned long toi_bootflags_mask;
-
-/*
- * Highmem related functions (x86 only).
- */
-
-#ifdef CONFIG_HIGHMEM
-
-/**
- * copyback_high: Restore highmem pages.
- *
- * Highmem data and pbe lists are/can be stored in highmem.
- * The format is slightly different to the lowmem pbe lists
- * used for the assembly code: the last pbe in each page is
- * a struct page * instead of struct pbe *, pointing to the
- * next page where pbes are stored (or NULL if happens to be
- * the end of the list). Since we don't want to generate
- * unnecessary deltas against swsusp code, we use a cast
- * instead of a union.
- **/
-
-static void copyback_high(void)
-{
- struct page *pbe_page = (struct page *) restore_highmem_pblist;
- struct pbe *this_pbe, *first_pbe;
- unsigned long *origpage, *copypage;
- int pbe_index = 1;
-
- if (!pbe_page)
- return;
-
- this_pbe = (struct pbe *) kmap_atomic(pbe_page);
- first_pbe = this_pbe;
-
- while (this_pbe) {
- int loop = (PAGE_SIZE / sizeof(unsigned long)) - 1;
-
- origpage = kmap_atomic(pfn_to_page((unsigned long) this_pbe->orig_address));
- copypage = kmap_atomic((struct page *) this_pbe->address);
-
- while (loop >= 0) {
- *(origpage + loop) = *(copypage + loop);
- loop--;
- }
-
- kunmap_atomic(origpage);
- kunmap_atomic(copypage);
-
- if (!this_pbe->next)
- break;
-
- if (pbe_index < PBES_PER_PAGE) {
- this_pbe++;
- pbe_index++;
- } else {
- pbe_page = (struct page *) this_pbe->next;
- kunmap_atomic(first_pbe);
- if (!pbe_page)
- return;
- this_pbe = (struct pbe *) kmap_atomic(pbe_page);
- first_pbe = this_pbe;
- pbe_index = 1;
- }
- }
- kunmap_atomic(first_pbe);
-}
-
-#else /* CONFIG_HIGHMEM */
-static void copyback_high(void) { }
-#endif
-
-char toi_wait_for_keypress_dev_console(int timeout)
-{
- int fd, this_timeout = 255, orig_kthread = 0;
- char key = '\0';
- struct termios t, t_backup;
-
- /* We should be guaranteed /dev/console exists after populate_rootfs()
- * in init/main.c.
- */
- fd = sys_open("/dev/console", O_RDONLY, 0);
- if (fd < 0) {
- printk(KERN_INFO "Couldn't open /dev/console.\n");
- return key;
- }
-
- if (sys_ioctl(fd, TCGETS, (long)&t) < 0)
- goto out_close;
-
- memcpy(&t_backup, &t, sizeof(t));
-
- t.c_lflag &= ~(ISIG|ICANON|ECHO);
- t.c_cc[VMIN] = 0;
-
-new_timeout:
- if (timeout > 0) {
- this_timeout = timeout < 26 ? timeout : 25;
- timeout -= this_timeout;
- this_timeout *= 10;
- }
-
- t.c_cc[VTIME] = this_timeout;
-
- if (sys_ioctl(fd, TCSETS, (long)&t) < 0)
- goto out_restore;
-
- if (current->flags & PF_KTHREAD) {
- orig_kthread = (current->flags & PF_KTHREAD);
- current->flags &= ~PF_KTHREAD;
- }
-
- while (1) {
- if (sys_read(fd, &key, 1) <= 0) {
- if (timeout)
- goto new_timeout;
- key = '\0';
- break;
- }
- key = tolower(key);
- if (test_toi_state(TOI_SANITY_CHECK_PROMPT)) {
- if (key == 'c') {
- set_toi_state(TOI_CONTINUE_REQ);
- break;
- } else if (key == ' ')
- break;
- } else
- break;
- }
- if (orig_kthread) {
- current->flags |= PF_KTHREAD;
- }
-
-out_restore:
- sys_ioctl(fd, TCSETS, (long)&t_backup);
-out_close:
- sys_close(fd);
-
- return key;
-}
-
-struct toi_boot_kernel_data toi_bkd __nosavedata
- __attribute__((aligned(PAGE_SIZE))) = {
- MY_BOOT_KERNEL_DATA_VERSION,
- 0,
-#ifdef CONFIG_TOI_REPLACE_SWSUSP
- (1 << TOI_REPLACE_SWSUSP) |
-#endif
- (1 << TOI_NO_FLUSHER_THREAD) |
- (1 << TOI_PAGESET2_FULL),
-};
-
-struct block_device *toi_open_by_devnum(dev_t dev)
-{
- struct block_device *bdev = bdget(dev);
- int err = -ENOMEM;
- if (bdev)
- err = blkdev_get(bdev, FMODE_READ | FMODE_NDELAY, NULL);
- return err ? ERR_PTR(err) : bdev;
-}
-
-/**
- * toi_close_bdev: Close a swap bdev.
- *
- * int: The swap entry number to close.
- */
-void toi_close_bdev(struct block_device *bdev)
-{
- blkdev_put(bdev, FMODE_READ | FMODE_NDELAY);
-}
-
-int toi_wait = CONFIG_TOI_DEFAULT_WAIT;
-struct toi_core_fns *toi_core_fns;
-unsigned long toi_result;
-struct pagedir pagedir1 = {1};
-struct toi_cbw **toi_first_cbw;
-int toi_next_cbw;
-
-unsigned long toi_get_nonconflicting_page(void)
-{
- return toi_core_fns->get_nonconflicting_page();
-}
-
-int toi_post_context_save(void)
-{
- return toi_core_fns->post_context_save();
-}
-
-int try_tuxonice_hibernate(void)
-{
- if (!toi_core_fns)
- return -ENODEV;
-
- return toi_core_fns->try_hibernate();
-}
-
-static int num_resume_calls;
-#ifdef CONFIG_TOI_IGNORE_LATE_INITCALL
-static int ignore_late_initcall = 1;
-#else
-static int ignore_late_initcall;
-#endif
-
-int toi_translate_err_default = TOI_CONTINUE_REQ;
-
-void try_tuxonice_resume(void)
-{
- if (!hibernation_available())
- return;
-
- /* Don't let it wrap around eventually */
- if (num_resume_calls < 2)
- num_resume_calls++;
-
- if (num_resume_calls == 1 && ignore_late_initcall) {
- printk(KERN_INFO "TuxOnIce: Ignoring late initcall, as requested.\n");
- return;
- }
-
- if (toi_core_fns)
- toi_core_fns->try_resume();
- else
- printk(KERN_INFO "TuxOnIce core not loaded yet.\n");
-}
-
-int toi_lowlevel_builtin(void)
-{
- int error = 0;
-
- save_processor_state();
- error = swsusp_arch_suspend();
- if (error)
- printk(KERN_ERR "Error %d hibernating\n", error);
-
- /* Restore control flow appears here */
- if (!toi_in_hibernate) {
- copyback_high();
- set_toi_state(TOI_NOW_RESUMING);
- }
-
- restore_processor_state();
- return error;
-}
-
-unsigned long toi_compress_bytes_in;
-unsigned long toi_compress_bytes_out;
-
-int toi_in_suspend(void)
-{
- return in_suspend;
-}
-
-unsigned long toi_state = ((1 << TOI_BOOT_TIME) |
- (1 << TOI_IGNORE_LOGLEVEL) |
- (1 << TOI_IO_STOPPED));
-
-/* The number of hibernates we have started (some may have been cancelled) */
-unsigned int nr_hibernates;
-int toi_running;
-__nosavedata int toi_in_hibernate;
-__nosavedata struct pbe *restore_highmem_pblist;
-
-int toi_trace_allocs;
-
-void toi_read_lock_tasklist(void)
-{
- read_lock(&tasklist_lock);
-}
-
-void toi_read_unlock_tasklist(void)
-{
- read_unlock(&tasklist_lock);
-}
-
-#ifdef CONFIG_TOI_ZRAM_SUPPORT
-int (*toi_flag_zram_disks) (void);
-
-int toi_do_flag_zram_disks(void)
-{
- return toi_flag_zram_disks ? (*toi_flag_zram_disks)() : 0;
-}
-
-#endif
-
-/* toi_generate_free_page_map
- *
- * Description: This routine generates a bitmap of free pages from the
- * lists used by the memory manager. We then use the bitmap
- * to quickly calculate which pages to save and in which
- * pagesets.
- */
-void toi_generate_free_page_map(void)
-{
- int order, cpu, t;
- unsigned long flags, i;
- struct zone *zone;
- struct list_head *curr;
- unsigned long pfn;
- struct page *page;
-
- for_each_populated_zone(zone) {
-
- if (!zone->spanned_pages)
- continue;
-
- spin_lock_irqsave(&zone->lock, flags);
-
- for (i = 0; i < zone->spanned_pages; i++) {
- pfn = zone->zone_start_pfn + i;
-
- if (!pfn_valid(pfn))
- continue;
-
- page = pfn_to_page(pfn);
-
- ClearPageNosaveFree(page);
- }
-
- for_each_migratetype_order(order, t) {
- list_for_each(curr,
- &zone->free_area[order].free_list[t]) {
- unsigned long j;
-
- pfn = page_to_pfn(list_entry(curr, struct page,
- lru));
- for (j = 0; j < (1UL << order); j++)
- SetPageNosaveFree(pfn_to_page(pfn + j));
- }
- }
-
- for_each_online_cpu(cpu) {
- struct per_cpu_pageset *pset =
- per_cpu_ptr(zone->pageset, cpu);
- struct per_cpu_pages *pcp = &pset->pcp;
- struct page *page;
- int t;
-
- for (t = 0; t < MIGRATE_PCPTYPES; t++)
- list_for_each_entry(page, &pcp->lists[t], lru)
- SetPageNosaveFree(page);
- }
-
- spin_unlock_irqrestore(&zone->lock, flags);
- }
-}
-
-/* toi_size_of_free_region
- *
- * Description: Return the number of pages that are free, beginning with and
- * including this one.
- */
-int toi_size_of_free_region(struct zone *zone, unsigned long start_pfn)
-{
- unsigned long this_pfn = start_pfn,
- end_pfn = zone_end_pfn(zone);
-
- while (pfn_valid(this_pfn) && this_pfn < end_pfn && PageNosaveFree(pfn_to_page(this_pfn)))
- this_pfn++;
-
- return this_pfn - start_pfn;
-}
-
-static int __init toi_wait_setup(char *str)
-{
- int value;
-
- if (sscanf(str, "=%d", &value)) {
- if (value < -1 || value > 255)
- printk(KERN_INFO "TuxOnIce_wait outside range -1 to "
- "255.\n");
- else
- toi_wait = value;
- }
-
- return 1;
-}
-__setup("toi_wait", toi_wait_setup);
-
-static int __init toi_translate_retry_setup(char *str)
-{
- toi_translate_err_default = 0;
- return 1;
-}
-__setup("toi_translate_retry", toi_translate_retry_setup);
-
-static int __init toi_debug_setup(char *str)
-{
- toi_bkd.toi_action |= (1 << TOI_LOGALL);
- toi_bootflags_mask |= (1 << TOI_LOGALL);
- toi_bkd.toi_debug_state = 255;
- toi_bkd.toi_default_console_level = 7;
- return 1;
-}
-__setup("toi_debug_setup", toi_debug_setup);
-
-static int __init toi_pause_setup(char *str)
-{
- toi_bkd.toi_action |= (1 << TOI_PAUSE);
- toi_bootflags_mask |= (1 << TOI_PAUSE);
- return 1;
-}
-__setup("toi_pause", toi_pause_setup);
-
-#ifdef CONFIG_PM_DEBUG
-static int __init toi_trace_allocs_setup(char *str)
-{
- int value;
-
- if (sscanf(str, "=%d", &value))
- toi_trace_allocs = value;
-
- return 1;
-}
-__setup("toi_trace_allocs", toi_trace_allocs_setup);
-#endif
-
-static int __init toi_ignore_late_initcall_setup(char *str)
-{
- int value;
-
- if (sscanf(str, "=%d", &value))
- ignore_late_initcall = value;
-
- return 1;
-}
-__setup("toi_initramfs_resume_only", toi_ignore_late_initcall_setup);
-
-static int __init toi_force_no_multithreaded_setup(char *str)
-{
- int value;
-
- toi_bkd.toi_action &= ~(1 << TOI_NO_MULTITHREADED_IO);
- toi_bootflags_mask |= (1 << TOI_NO_MULTITHREADED_IO);
-
- if (sscanf(str, "=%d", &value) && value)
- toi_bkd.toi_action |= (1 << TOI_NO_MULTITHREADED_IO);
-
- return 1;
-}
-__setup("toi_no_multithreaded", toi_force_no_multithreaded_setup);
-
-#ifdef CONFIG_KGDB
-static int __init toi_post_resume_breakpoint_setup(char *str)
-{
- int value;
-
- toi_bkd.toi_action &= ~(1 << TOI_POST_RESUME_BREAKPOINT);
- toi_bootflags_mask |= (1 << TOI_POST_RESUME_BREAKPOINT);
- if (sscanf(str, "=%d", &value) && value)
- toi_bkd.toi_action |= (1 << TOI_POST_RESUME_BREAKPOINT);
-
- return 1;
-}
-__setup("toi_post_resume_break", toi_post_resume_breakpoint_setup);
-#endif
-
-static int __init toi_disable_readahead_setup(char *str)
-{
- int value;
-
- toi_bkd.toi_action &= ~(1 << TOI_NO_READAHEAD);
- toi_bootflags_mask |= (1 << TOI_NO_READAHEAD);
- if (sscanf(str, "=%d", &value) && value)
- toi_bkd.toi_action |= (1 << TOI_NO_READAHEAD);
-
- return 1;
-}
-__setup("toi_no_readahead", toi_disable_readahead_setup);