/* $OpenBSD: pmap_bootstrap.c,v 1.24 2006/05/19 22:51:07 miod Exp $ */ /* $NetBSD: pmap_bootstrap.c,v 1.13 1997/06/10 18:56:50 veego Exp $ */ /* * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)pmap_bootstrap.c 8.1 (Berkeley) 6/10/93 */ #include #include #include #include #include #include #include #include #include caddr_t ledbase; /* SPU LEDs mapping */ extern vaddr_t CLKbase, MMUbase; extern char *extiobase; extern int eiomapsize; #define RELOC(v, t) *((t*)((u_int)&(v) + firstpa)) #define PA2VA(v, t) *((t*)((u_int)&(v))) #define MACHINE_IIOMAPSIZE IIOMAPSIZE #define MACHINE_INTIOBASE INTIOBASE #define MACHINE_EIOMAPSIZE RELOC(eiomapsize, int) #define PMAP_MD_LOCALS /* nothing */ #define PMAP_MD_RELOC1() /* nothing */ #define PMAP_MD_MAPIOSPACE() /* nothing */ /* * intiobase, intiolimit: base and end of internal (DIO) IO space. * MACHINE_IIOMAPSIZE pages prior to external IO space at end of * static kernel page table. * extiobase: base of external (DIO-II) IO space. * MACHINE_EIOMAPSIZE pages at the end of the static kernel page table. * CLKbase, MMUbase: important registers in internal IO space * accessed from locore. */ #define PMAP_MD_RELOC2() \ do { \ RELOC(intiobase, char *) = (char *)iiobase; \ RELOC(intiolimit, char *) = (char *)eiobase; \ RELOC(extiobase, char *) = (char *)eiobase; \ RELOC(CLKbase, vaddr_t) = iiobase + CLKBASE; \ RELOC(MMUbase, vaddr_t) = iiobase + MMUBASE; \ } while (0) #define PMAP_MD_MEMSIZE() \ do { \ RELOC(avail_end, paddr_t) = MAXADDR - \ (round_page(MSGBUFSIZE) + ptoa(1)); \ } while (0) /* * Allocate some fixed, special purpose kernel virtual addresses */ #define PMAP_MD_RELOC3() \ do { \ RELOC(ledbase, caddr_t) = (caddr_t)va; \ va += NBPG; \ } while (0) #include void pmap_init_md() { vaddr_t addr; /* * mark as unavailable the regions which we have mapped in * pmap_bootstrap(). */ addr = (vaddr_t) intiobase; if (uvm_map(kernel_map, &addr, ptoa(IIOMAPSIZE + eiomapsize), NULL, UVM_UNKNOWN_OFFSET, 0, UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, UVM_ADV_RANDOM, UVM_FLAG_FIXED))) panic("pmap_init: bogons in the VM system!"); }