1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <sys/t_lock.h> 28 #include <sys/vmem.h> 29 #include <sys/mman.h> 30 #include <sys/vm.h> 31 #include <sys/cpuvar.h> 32 #include <sys/systm.h> 33 #include <vm/as.h> 34 #include <vm/hat.h> 35 #include <vm/page.h> 36 #include <vm/seg.h> 37 #include <vm/seg_kmem.h> 38 #include <sys/kmem.h> 39 #include <sys/cmn_err.h> 40 #include <sys/debug.h> 41 42 /* 43 * ppcopy() and pagezero() have moved to i86/vm/vm_machdep.c 44 */ 45 46 /* 47 * Architecures with a vac use this routine to quickly make 48 * a vac-aligned mapping. We don't have a vac, so we don't 49 * care about that - just make this simple. 50 */ 51 /* ARGSUSED2 */ 52 caddr_t 53 ppmapin(page_t *pp, uint_t vprot, caddr_t avoid) 54 { 55 caddr_t va; 56 57 va = vmem_alloc(heap_arena, PAGESIZE, VM_SLEEP); 58 hat_memload(kas.a_hat, va, pp, vprot | HAT_NOSYNC, HAT_LOAD_LOCK); 59 return (va); 60 } 61 62 void 63 ppmapout(caddr_t va) 64 { 65 hat_unload(kas.a_hat, va, PAGESIZE, HAT_UNLOAD_UNLOCK); 66 vmem_free(heap_arena, va, PAGESIZE); 67 } 68 69 70 /* 71 * Map the page pointed to by pp into the kernel virtual address space. 72 * This routine is used by the rootnexus. 73 */ 74 void 75 i86_pp_map(page_t *pp, caddr_t kaddr) 76 { 77 hat_devload(kas.a_hat, kaddr, MMU_PAGESIZE, page_pptonum(pp), 78 HAT_STORECACHING_OK | PROT_READ | PROT_WRITE | HAT_NOSYNC, 79 HAT_LOAD_LOCK); 80 } 81 82 /* 83 * Map the page containing the virtual address into the kernel virtual address 84 * space. This routine is used by the rootnexus. 85 */ 86 void 87 i86_va_map(caddr_t vaddr, struct as *asp, caddr_t kaddr) 88 { 89 pfn_t pfnum; 90 91 pfnum = hat_getpfnum(asp->a_hat, vaddr); 92 hat_devload(kas.a_hat, kaddr, MMU_PAGESIZE, pfnum, 93 HAT_STORECACHING_OK | PROT_READ | PROT_WRITE | HAT_NOSYNC, 94 HAT_LOAD_LOCK); 95 } 96