/*
* Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <kern/kalloc.h>
#include <kern/machine.h>
#include <kern/misc_protos.h>
#include <kern/thread.h>
#include <kern/processor.h>
#include <mach/machine.h>
#include <mach/processor_info.h>
#include <mach/mach_types.h>
#include <IOKit/IOPlatformExpert.h>
#include <IOKit/IOHibernatePrivate.h>
#include <vm/vm_page.h>
#include <vm/vm_pageout_xnu.h>
#include <vm/vm_purgeable_internal.h>
#include <vm/vm_compressor_xnu.h>
#include <kern/ecc.h>
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
boolean_t need_to_unlock_decompressor = FALSE;
kern_return_t
hibernate_alloc_page_lists(
hibernate_page_list_t ** page_list_ret,
hibernate_page_list_t ** page_list_wired_ret,
hibernate_page_list_t ** page_list_pal_ret)
{
kern_return_t retval = KERN_SUCCESS;
hibernate_page_list_t * page_list = NULL;
hibernate_page_list_t * page_list_wired = NULL;
hibernate_page_list_t * page_list_pal = NULL;
page_list = hibernate_page_list_allocate(TRUE);
if (!page_list) {
HIBLOG("%s: failed for page_list\n", __FUNCTION__);
retval = KERN_RESOURCE_SHORTAGE;
goto done;
}
page_list_wired = hibernate_page_list_allocate(FALSE);
if (!page_list_wired) {
kfree_data(page_list, page_list->list_size);
HIBLOG("%s: failed for page_list_wired\n", __FUNCTION__);
retval = KERN_RESOURCE_SHORTAGE;
goto done;
}
page_list_pal = hibernate_page_list_allocate(FALSE);
if (!page_list_pal) {
kfree_data(page_list, page_list->list_size);
kfree_data(page_list_wired, page_list_wired->list_size);
HIBLOG("%s: failed for page_list_pal\n", __FUNCTION__);
retval = KERN_RESOURCE_SHORTAGE;
goto done;
}
*page_list_ret = page_list;
*page_list_wired_ret = page_list_wired;
*page_list_pal_ret = page_list_pal;
done:
return retval;
}
extern int sync_internal(void);
kern_return_t
hibernate_setup(IOHibernateImageHeader * header,
boolean_t vmflush,
hibernate_page_list_t * page_list __unused,
hibernate_page_list_t * page_list_wired __unused,
hibernate_page_list_t * page_list_pal __unused)
{
kern_return_t retval = KERN_SUCCESS;
hibernate_create_paddr_map();
hibernate_reset_stats();
if (vmflush && VM_CONFIG_COMPRESSOR_IS_PRESENT) {
sync_internal();
vm_decompressor_lock();
need_to_unlock_decompressor = TRUE;
hibernate_flush_memory();
}
// no failures hereafter
hibernate_processor_setup(header);
HIBLOG("hibernate_alloc_pages act %d, inact %d, anon %d, throt %d, spec %d, wire %d, wireinit %d\n",
vm_page_active_count, vm_page_inactive_count,
vm_page_anonymous_count, vm_page_throttled_count, vm_page_speculative_count,
vm_page_wire_count, vm_page_wire_count_initial);
if (retval != KERN_SUCCESS && need_to_unlock_decompressor == TRUE) {
need_to_unlock_decompressor = FALSE;
vm_decompressor_unlock();
}
return retval;
}
kern_return_t
hibernate_teardown(hibernate_page_list_t * page_list,
hibernate_page_list_t * page_list_wired,
hibernate_page_list_t * page_list_pal)
{
hibernate_free_gobble_pages();
if (page_list) {
kfree_data(page_list, page_list->list_size);
}
if (page_list_wired) {
kfree_data(page_list_wired, page_list_wired->list_size);
}
if (page_list_pal) {
kfree_data(page_list_pal, page_list_pal->list_size);
}
if (VM_CONFIG_COMPRESSOR_IS_PRESENT) {
if (need_to_unlock_decompressor == TRUE) {
need_to_unlock_decompressor = FALSE;
vm_decompressor_unlock();
}
vm_compressor_delay_trim();
}
return KERN_SUCCESS;
}