1 /* $NetBSD: bus_private.h,v 1.8 2007/11/22 16:16:56 bouyer Exp $ */ 2 3 /*- 4 * Copyright (c)2005 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <uvm/uvm_extern.h> 30 31 #define _BUS_PHYS_TO_BUS(pa) ((bus_addr_t)xpmap_ptom(pa)) 32 #define _BUS_BUS_TO_PHYS(ba) ((paddr_t)xpmap_mtop(ba)) 33 #define _BUS_VIRT_TO_BUS(pm, va) _bus_virt_to_bus((pm), (va)) 34 #define _BUS_BUS_TO_VM_PAGE(ba) (PHYS_TO_VM_PAGE(xpmap_mtop(ba))) 35 #define _BUS_PMAP_ENTER(pmap, va, ba, prot, flags) \ 36 pmap_enter(pmap, va, xpmap_mtop(ba), prot, flags) 37 38 static __inline bus_addr_t _bus_virt_to_bus(struct pmap *, vaddr_t); 39 40 static __inline bus_addr_t 41 _bus_virt_to_bus(struct pmap *pm, vaddr_t va) 42 { 43 bus_addr_t ba; 44 45 if (!pmap_extract_ma(pm, va, &ba)) { 46 panic("_bus_virt_to_bus"); 47 } 48 49 return ba; 50 } 51 52 /* we need our own bus_dmamem_alloc_range */ 53 #define _BUS_DMAMEM_ALLOC_RANGE _xen_bus_dmamem_alloc_range 54 int _xen_bus_dmamem_alloc_range(bus_dma_tag_t, bus_size_t, bus_size_t, 55 bus_size_t, bus_dma_segment_t *, int, int *, int, 56 bus_addr_t, bus_addr_t); 57 58 /* 59 * The higher machine address of our allocated range isn't know and can change 60 * over time. Just assume it's the largest possible value. 61 */ 62 #if defined(_LP64) || defined(PAE) 63 #define _BUS_AVAIL_END ((bus_addr_t)0xffffffffffffffff) 64 #else 65 #define _BUS_AVAIL_END ((bus_addr_t)0xffffffff) 66 #endif 67 68 #include <x86/bus_private.h> 69