1 /* $OpenBSD: hibernate_var.h,v 1.15 2015/01/09 03:43:52 mlarkin Exp $ */ 2 3 /* 4 * Copyright (c) 2011 Mike Larkin <mlarkin@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #define HIB_PD_MASK 0xffc00000 20 #define PIGLET_PAGE_MASK (HIB_PD_MASK) 21 22 #define HIBERNATE_PD_PAGE (PAGE_SIZE * 21) 23 #define HIBERNATE_PT_PAGE (PAGE_SIZE * 22) 24 /* 2 pages for stack */ 25 #define HIBERNATE_STACK_PAGE (PAGE_SIZE * 24) 26 #define HIBERNATE_INFLATE_PAGE (PAGE_SIZE * 25) 27 /* HIBERNATE_HIBALLOC_PAGE must be the last stolen page (see machdep.c) */ 28 #define HIBERNATE_HIBALLOC_PAGE (PAGE_SIZE * 26) 29 30 /* Use 4MB hibernation chunks */ 31 #define HIBERNATE_CHUNK_SIZE 0x400000 32 33 #define HIBERNATE_CHUNK_TABLE_SIZE 0x100000 34 35 #define HIBERNATE_STACK_OFFSET 0x0F00 36 37 #define atop_4m(x) ((x) >> PDSHIFT) 38 #define atop_4k(x) ((x) >> PAGE_SHIFT) 39 #define s4pde_4m(va) ((pt_entry_t *)HIBERNATE_PD_PAGE + atop_4m(va)) 40 #define s4pde_4k(va) ((pt_entry_t *)HIBERNATE_PD_PAGE + atop_4k(va)) 41 #define s4pte_4k(va) ((pt_entry_t *)HIBERNATE_PT_PAGE + atop_4k(va)) 42