Home | History | Annotate | Line # | Download | only in generic
rump_generic_pmap.c revision 1.2.4.2 
      1 /*	$NetBSD: rump_generic_pmap.c,v 1.2.4.2 2014/05/18 17:46:18 rmind Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2010 Antti Kantee.  All Rights Reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: rump_generic_pmap.c,v 1.2.4.2 2014/05/18 17:46:18 rmind Exp $");
     30 
     31 #include <sys/param.h>
     32 
     33 #include <uvm/uvm_extern.h>
     34 
     35 /*
     36  * This is the MI pmap implementation for rump kernels.  It's used only by
     37  * architectures which do not conform to the kernel ABI.
     38  */
     39 
     40 struct pmap *const kernel_pmap_ptr = (struct pmap *const)-1;
     41 
     42 void
     43 pmap_kenter_pa(vaddr_t va, paddr_t pa, vm_prot_t prot, u_int fl)
     44 {
     45 
     46 	panic("%s: unavailable", __func__);
     47 }
     48 
     49 void
     50 pmap_kremove(vaddr_t va, vsize_t size)
     51 {
     52 
     53 	panic("%s: unavailable", __func__);
     54 }
     55 
     56 int
     57 pmap_enter(pmap_t pmap, vaddr_t va, paddr_t pa, vm_prot_t prot, u_int flags)
     58 {
     59 
     60 	panic("%s: unavailable", __func__);
     61 }
     62 
     63 void
     64 pmap_remove(pmap_t pmap, vaddr_t sva, vaddr_t eva)
     65 {
     66 
     67 	panic("%s: unavailable", __func__);
     68 }
     69 
     70 bool
     71 pmap_extract(pmap_t pmap, vaddr_t va, paddr_t *pap)
     72 {
     73 
     74 	*pap = va;
     75 	return true;
     76 }
     77 
     78 void
     79 pmap_page_protect(struct vm_page *pg, vm_prot_t prot)
     80 {
     81 
     82 	/* nada */
     83 }
     84 
     85 bool
     86 pmap_clear_modify(struct vm_page *pg)
     87 {
     88 
     89 	return false;
     90 }
     91