1 /*- 2 * Copyright (c) 2001 Benno Rice 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/types.h> 32 33 #include <stand.h> 34 35 #include "libofw.h" 36 #include "openfirm.h" 37 38 static void *heap_base = 0; 39 static unsigned int heap_size = 0; 40 41 struct ofw_mapping { 42 vm_offset_t va; 43 int len; 44 vm_offset_t pa; 45 int mode; 46 }; 47 48 struct ofw_mapping2 { 49 vm_offset_t va; 50 int len; 51 vm_offset_t pa_hi; 52 vm_offset_t pa_lo; 53 int mode; 54 }; 55 56 void 57 ofw_memmap(int acells) 58 { 59 struct ofw_mapping *mapptr; 60 struct ofw_mapping2 *mapptr2; 61 phandle_t mmup; 62 int nmapping, i; 63 u_char mappings[256 * sizeof(struct ofw_mapping2)]; 64 char lbuf[80]; 65 66 mmup = OF_instance_to_package(mmu); 67 68 bzero(mappings, sizeof(mappings)); 69 70 nmapping = OF_getprop(mmup, "translations", mappings, sizeof(mappings)); 71 if (nmapping == -1) { 72 printf("Could not get memory map (%d)\n", 73 nmapping); 74 return; 75 } 76 77 pager_open(); 78 if (acells == 1) { 79 nmapping /= sizeof(struct ofw_mapping); 80 mapptr = (struct ofw_mapping *) mappings; 81 82 printf("%17s\t%17s\t%8s\t%6s\n", "Virtual Range", 83 "Physical Range", "#Pages", "Mode"); 84 85 for (i = 0; i < nmapping; i++) { 86 sprintf(lbuf, "%08x-%08x\t%08x-%08x\t%8d\t%6x\n", 87 mapptr[i].va, 88 mapptr[i].va + mapptr[i].len, 89 mapptr[i].pa, 90 mapptr[i].pa + mapptr[i].len, 91 mapptr[i].len / 0x1000, 92 mapptr[i].mode); 93 if (pager_output(lbuf)) 94 break; 95 } 96 } else { 97 nmapping /= sizeof(struct ofw_mapping2); 98 mapptr2 = (struct ofw_mapping2 *) mappings; 99 100 printf("%17s\t%17s\t%8s\t%6s\n", "Virtual Range", 101 "Physical Range", "#Pages", "Mode"); 102 103 for (i = 0; i < nmapping; i++) { 104 sprintf(lbuf, "%08x-%08x\t%08x-%08x\t%8d\t%6x\n", 105 mapptr2[i].va, 106 mapptr2[i].va + mapptr2[i].len, 107 mapptr2[i].pa_lo, 108 mapptr2[i].pa_lo + mapptr2[i].len, 109 mapptr2[i].len / 0x1000, 110 mapptr2[i].mode); 111 if (pager_output(lbuf)) 112 break; 113 } 114 } 115 pager_close(); 116 } 117 118 void * 119 ofw_alloc_heap(unsigned int size) 120 { 121 phandle_t memoryp, root; 122 cell_t available[4]; 123 cell_t acells; 124 125 root = OF_finddevice("/"); 126 acells = 1; 127 OF_getprop(root, "#address-cells", &acells, sizeof(acells)); 128 129 memoryp = OF_instance_to_package(memory); 130 OF_getprop(memoryp, "available", available, sizeof(available)); 131 132 heap_base = OF_claim((void *)available[acells-1], size, 133 sizeof(register_t)); 134 135 if (heap_base != (void *)-1) { 136 heap_size = size; 137 } 138 139 return (heap_base); 140 } 141 142 void 143 ofw_release_heap(void) 144 { 145 OF_release(heap_base, heap_size); 146 } 147