1 /* $OpenBSD: hibernate_var.h,v 1.9 2014/01/05 20:23:57 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 /* i386 hibernate support definitions */ 20 21 #define PAGE_SHIFT_4M 22 22 #define PAGE_MASK_4M (NBPD - 1) 23 #define PMAP_PA_MASK_4M ~((paddr_t)PAGE_MASK_4M) 24 25 #define PIGLET_PAGE_MASK ~((paddr_t)PAGE_MASK_4M) 26 27 #define HIBERNATE_PD_PAGE (PAGE_SIZE * 18) 28 #define HIBERNATE_PT_PAGE (PAGE_SIZE * 19) 29 /* 2 pages for stack */ 30 #define HIBERNATE_STACK_PAGE (PAGE_SIZE * 21) 31 #define HIBERNATE_INFLATE_PAGE (PAGE_SIZE * 22) 32 /* HIBERNATE_HIBALLOC_PAGE must be the last stolen page (see machdep.c) */ 33 #define HIBERNATE_HIBALLOC_PAGE (PAGE_SIZE * 23) 34 35 /* Use 4MB hibernation chunks */ 36 #define HIBERNATE_CHUNK_SIZE 0x400000 37 38 #define HIBERNATE_CHUNK_TABLE_SIZE 0x100000 39 40 #define HIBERNATE_STACK_OFFSET 0x0F00 41 42 #define atop_4m(x) ((x) >> PAGE_SHIFT_4M) 43 #define atop_4k(x) ((x) >> PAGE_SHIFT) 44 #define s4pde_4m(va) ((pt_entry_t *)HIBERNATE_PD_PAGE + atop_4m(va)) 45 #define s4pde_4k(va) ((pt_entry_t *)HIBERNATE_PD_PAGE + atop_4k(va)) 46 #define s4pte_4k(va) ((pt_entry_t *)HIBERNATE_PT_PAGE + atop_4k(va)) 47