1 /* 2 * Copyright (c) 2011 Mike Larkin <mlarkin@openbsd.org> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 /* i386 hibernate support definitions */ 18 19 #define PAGE_SHIFT_4M 22 20 #define PAGE_MASK_4M (NBPD - 1) 21 #define PMAP_PA_MASK_4M ~((paddr_t)PAGE_MASK_4M) 22 23 #define PIGLET_PAGE_MASK ~((paddr_t)PAGE_MASK_4M) 24 25 #define HIBERNATE_PD_PAGE (PAGE_SIZE * 5) 26 #define HIBERNATE_PT_PAGE (PAGE_SIZE * 6) 27 #define HIBERNATE_STACK_PAGE (PAGE_SIZE * 8) 28 #define HIBERNATE_INFLATE_PAGE (PAGE_SIZE * 9) 29 #define HIBERNATE_COPY_PAGE (PAGE_SIZE * 10) 30 #define HIBERNATE_HIBALLOC_PAGE (PAGE_SIZE * 11) 31 32 /* Use 4MB hibernation chunks */ 33 #define HIBERNATE_CHUNK_SIZE 0x400000 34 35 #define HIBERNATE_CHUNK_TABLE_SIZE 0x100000 36 37 #define HIBERNATE_STACK_OFFSET 0x0F00 38 39 #define atop_4m(x) ((x) >> PAGE_SHIFT_4M) 40 #define atop_4k(x) ((x) >> PAGE_SHIFT) 41 #define s4pde_4m(va) ((pt_entry_t *)HIBERNATE_PD_PAGE + atop_4m(va)) 42 #define s4pde_4k(va) ((pt_entry_t *)HIBERNATE_PD_PAGE + atop_4k(va)) 43 #define s4pte_4k(va) ((pt_entry_t *)HIBERNATE_PT_PAGE + atop_4k(va)) 44