1*2688b459Schristos /* $NetBSD: vmparam.h,v 1.28 2019/03/27 17:15:29 christos Exp $ */ 27d4a1addSreinoud 37d4a1addSreinoud /* 47d4a1addSreinoud * Copyright (c) 1988 The Regents of the University of California. 57d4a1addSreinoud * All rights reserved. 67d4a1addSreinoud * 77d4a1addSreinoud * Redistribution and use in source and binary forms, with or without 87d4a1addSreinoud * modification, are permitted provided that the following conditions 97d4a1addSreinoud * are met: 107d4a1addSreinoud * 1. Redistributions of source code must retain the above copyright 117d4a1addSreinoud * notice, this list of conditions and the following disclaimer. 127d4a1addSreinoud * 2. Redistributions in binary form must reproduce the above copyright 137d4a1addSreinoud * notice, this list of conditions and the following disclaimer in the 147d4a1addSreinoud * documentation and/or other materials provided with the distribution. 15aad01611Sagc * 3. Neither the name of the University nor the names of its contributors 167d4a1addSreinoud * may be used to endorse or promote products derived from this software 177d4a1addSreinoud * without specific prior written permission. 187d4a1addSreinoud * 197d4a1addSreinoud * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 207d4a1addSreinoud * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 217d4a1addSreinoud * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 227d4a1addSreinoud * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 237d4a1addSreinoud * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 247d4a1addSreinoud * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 257d4a1addSreinoud * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 267d4a1addSreinoud * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 277d4a1addSreinoud * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 287d4a1addSreinoud * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 297d4a1addSreinoud * SUCH DAMAGE. 307d4a1addSreinoud */ 317d4a1addSreinoud 32caff4f57Schristos #ifndef _ACORN32_VMPARAM_H_ 33caff4f57Schristos #define _ACORN32_VMPARAM_H_ 347d4a1addSreinoud 354ffa9834Sthorpej #include <arm/arm32/vmparam.h> 364ffa9834Sthorpej 377d4a1addSreinoud /* 387d4a1addSreinoud * Address space constants 397d4a1addSreinoud */ 407d4a1addSreinoud 417d4a1addSreinoud /* 427d4a1addSreinoud * The line between user space and kernel space 43110e2a57Sthorpej * Mappings >= KERNEL_BASE are constant across all processes 447d4a1addSreinoud */ 45110e2a57Sthorpej #define KERNEL_BASE 0xf0000000 467d4a1addSreinoud 477d4a1addSreinoud /* 487d4a1addSreinoud * Size of User Raw I/O map 497d4a1addSreinoud */ 507d4a1addSreinoud 517d4a1addSreinoud #define USRIOSIZE 300 527d4a1addSreinoud 537d4a1addSreinoud /* virtual sizes (bytes) for various kernel submaps */ 547d4a1addSreinoud 55cc2c493bSthorpej #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) 567d4a1addSreinoud 577d4a1addSreinoud /* 587d4a1addSreinoud * max number of non-contig chunks of physical RAM you can have 597d4a1addSreinoud */ 607d4a1addSreinoud 617d4a1addSreinoud #define VM_PHYSSEG_MAX 32 627d4a1addSreinoud 637d4a1addSreinoud /* 647d4a1addSreinoud * when converting a physical address to a vm_page structure, we 657d4a1addSreinoud * want to use a binary search on the chunks of physical memory 667d4a1addSreinoud * to find our RAM 677d4a1addSreinoud */ 687d4a1addSreinoud 697d4a1addSreinoud #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 707d4a1addSreinoud 717d4a1addSreinoud /* 727d4a1addSreinoud * we support 2 free lists: 737d4a1addSreinoud * 747d4a1addSreinoud * - DEFAULT for all systems 7581f10ee7Sskrll * - ISADMA for the ISA DMA range 767d4a1addSreinoud * - RPCDMA for the DMA range on RiscPC's + Kinetic cards 777d4a1addSreinoud */ 787d4a1addSreinoud 797d4a1addSreinoud #define VM_NFREELIST 2 807d4a1addSreinoud #define VM_FREELIST_DEFAULT 0 817d4a1addSreinoud #define VM_FREELIST_ISADMA 1 827d4a1addSreinoud #define VM_FREELIST_RPCDMA 1 837d4a1addSreinoud 84caff4f57Schristos #endif /* _ACORN32_VMPARAM_H_ */ 85