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Commit	Line	Data
	1	/*
	2	* Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28
	29	#include <kern/kalloc.h>
	30	#include <kern/machine.h>
	31	#include <kern/misc_protos.h>
	32	#include <kern/thread.h>
	33	#include <kern/processor.h>
	34	#include <mach/machine.h>
	35	#include <mach/processor_info.h>
	36	#include <mach/mach_types.h>
	37	#include <IOKit/IOPlatformExpert.h>
	38
	39	#include <IOKit/IOHibernatePrivate.h>
	40	#include <vm/vm_page.h>
	41	#include <vm/vm_pageout.h>
	42	#include <vm/vm_purgeable_internal.h>
	43	#include <vm/vm_compressor.h>
	44
	45	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
	46
	47	boolean_t need_to_unlock_decompressor = FALSE;
	48
	49	kern_return_t
	50	hibernate_alloc_page_lists(
	51	hibernate_page_list_t ** page_list_ret,
	52	hibernate_page_list_t ** page_list_wired_ret,
	53	hibernate_page_list_t ** page_list_pal_ret)
	54	{
	55	kern_return_t retval = KERN_SUCCESS;
	56
	57	hibernate_page_list_t * page_list = NULL;
	58	hibernate_page_list_t * page_list_wired = NULL;
	59	hibernate_page_list_t * page_list_pal = NULL;
	60
	61	page_list = hibernate_page_list_allocate(TRUE);
	62	if (!page_list) {
	63
	64	retval = KERN_RESOURCE_SHORTAGE;
	65	goto done;
	66	}
	67	page_list_wired = hibernate_page_list_allocate(FALSE);
	68	if (!page_list_wired)
	69	{
	70	kfree(page_list, page_list->list_size);
	71
	72	retval = KERN_RESOURCE_SHORTAGE;
	73	goto done;
	74	}
	75	page_list_pal = hibernate_page_list_allocate(FALSE);
	76	if (!page_list_pal)
	77	{
	78	kfree(page_list, page_list->list_size);
	79	kfree(page_list_wired, page_list_wired->list_size);
	80
	81	retval = KERN_RESOURCE_SHORTAGE;
	82	goto done;
	83	}
	84	*page_list_ret = page_list;
	85	*page_list_wired_ret = page_list_wired;
	86	*page_list_pal_ret = page_list_pal;
	87
	88	done:
	89	return (retval);
	90
	91	}
	92
	93	extern int sync_internal(void);
	94
	95	kern_return_t
	96	hibernate_setup(IOHibernateImageHeader * header,
	97	boolean_t vmflush,
	98	hibernate_page_list_t * page_list __unused,
	99	hibernate_page_list_t * page_list_wired __unused,
	100	hibernate_page_list_t * page_list_pal __unused)
	101	{
	102	kern_return_t retval = KERN_SUCCESS;
	103
	104	hibernate_create_paddr_map();
	105
	106	hibernate_reset_stats();
	107
	108	if (vmflush && VM_CONFIG_COMPRESSOR_IS_PRESENT) {
	109
	110	sync_internal();
	111
	112	vm_decompressor_lock();
	113	need_to_unlock_decompressor = TRUE;
	114
	115	hibernate_flush_memory();
	116	}
	117
	118	// no failures hereafter
	119
	120	hibernate_processor_setup(header);
	121
	122	HIBLOG("hibernate_alloc_pages act %d, inact %d, anon %d, throt %d, spec %d, wire %d, wireinit %d\n",
	123	vm_page_active_count, vm_page_inactive_count,
	124	vm_page_anonymous_count, vm_page_throttled_count, vm_page_speculative_count,
	125	vm_page_wire_count, vm_page_wire_count_initial);
	126
	127	if (retval != KERN_SUCCESS && need_to_unlock_decompressor == TRUE) {
	128	need_to_unlock_decompressor = FALSE;
	129	vm_decompressor_unlock();
	130	}
	131	return (retval);
	132	}
	133
	134	kern_return_t
	135	hibernate_teardown(hibernate_page_list_t * page_list,
	136	hibernate_page_list_t * page_list_wired,
	137	hibernate_page_list_t * page_list_pal)
	138	{
	139	hibernate_free_gobble_pages();
	140
	141	if (page_list)
	142	kfree(page_list, page_list->list_size);
	143	if (page_list_wired)
	144	kfree(page_list_wired, page_list_wired->list_size);
	145	if (page_list_pal)
	146	kfree(page_list_pal, page_list_pal->list_size);
	147
	148	if (VM_CONFIG_COMPRESSOR_IS_PRESENT) {
	149	if (need_to_unlock_decompressor == TRUE) {
	150	need_to_unlock_decompressor = FALSE;
	151	vm_decompressor_unlock();
	152	}
	153	vm_compressor_delay_trim();
	154	}
	155	return (KERN_SUCCESS);
	156	}