105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/*
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* Copyright (c) 2001 Benno Rice
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <stand.h>
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#include "libofw.h"
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#include "openfirm.h"
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static void *heap_base = 0;
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static unsigned int heap_size = 0;
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struct ofw_mapping {
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vm_offset_t va;
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int len;
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vm_offset_t pa;
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int mode;
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};
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void
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ofw_memmap(void)
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{
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ihandle_t mmui;
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phandle_t mmu;
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int nmapping, i;
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struct ofw_mapping mappings[256];
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OF_getprop(chosen, "mmu", &mmui, 4);
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mmu = OF_instance_to_package(mmui);
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bzero(mappings, sizeof(mappings));
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nmapping = OF_getprop(mmu, "translations", mappings, sizeof(mappings));
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if (nmapping == -1) {
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printf("Could not get memory map (%d)\n",
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nmapping);
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return;
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}
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nmapping /= sizeof(struct ofw_mapping);
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printf("%17s %17s %8s %6s\n", "Virtual Range", "Physical Range",
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"#Pages", "Mode");
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for (i = 0; i < nmapping; i++) {
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printf("%08x-%08x %08x-%08x %8d %6x\n", mappings[i].pa,
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mappings[i].pa + mappings[i].len, mappings[i].va,
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mappings[i].va + mappings[i].len, mappings[i].len / 0x1000,
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mappings[i].mode);
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}
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}
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void *
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ofw_alloc_heap(unsigned int size)
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{
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ihandle_t meminstance;
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phandle_t memory;
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struct ofw_reg available;
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void *base;
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OF_getprop(chosen, "memory", &meminstance, sizeof(meminstance));
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memory = OF_instance_to_package(meminstance);
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OF_getprop(memory, "available", &available, sizeof(available));
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heap_base = OF_claim((void *)available.base, size, sizeof(register_t));
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if (heap_base != (void *)-1) {
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heap_size = size;
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}
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return (heap_base);
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}
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void
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ofw_release_heap(void)
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{
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OF_release(heap_base, heap_size);
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}
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