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rump_generic_pmap.c revision 1.2.12.1 
      1 /*	$NetBSD: rump_generic_pmap.c,v 1.2.12.1 2015/04/06 15:18:30 skrll 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 1.2.12.1 2015/04/06 15:18:30 skrll Exp $");
     30 
     31 #include <sys/param.h>
     32 
     33 #include <uvm/uvm_extern.h>
     34 
     35 #include "rump_private.h"
     36 
     37 /*
     38  * This is the MI pmap implementation for rump kernels.  It's used only by
     39  * architectures which do not conform to the kernel ABI.
     40  */
     41 
     42 struct pmap *const kernel_pmap_ptr = RUMP_PMAP_KERNEL;
     43 
     44 void
     45 pmap_kenter_pa(vaddr_t va, paddr_t pa, vm_prot_t prot, u_int fl)
     46 {
     47 
     48 	panic("%s: unavailable", __func__);
     49 }
     50 
     51 void
     52 pmap_kremove(vaddr_t va, vsize_t size)
     53 {
     54 
     55 	panic("%s: unavailable", __func__);
     56 }
     57 
     58 int
     59 pmap_enter(pmap_t pmap, vaddr_t va, paddr_t pa, vm_prot_t prot, u_int flags)
     60 {
     61 
     62 	panic("%s: unavailable", __func__);
     63 }
     64 
     65 void
     66 pmap_remove(pmap_t pmap, vaddr_t sva, vaddr_t eva)
     67 {
     68 
     69 	panic("%s: unavailable", __func__);
     70 }
     71 
     72 bool
     73 pmap_extract(pmap_t pmap, vaddr_t va, paddr_t *pap)
     74 {
     75 
     76 	*pap = va;
     77 	return true;
     78 }
     79 
     80 void
     81 pmap_page_protect(struct vm_page *pg, vm_prot_t prot)
     82 {
     83 
     84 	/* nada */
     85 }
     86 
     87 bool
     88 pmap_clear_modify(struct vm_page *pg)
     89 {
     90 
     91 	return false;
     92 }
     93