1*f3ad8a34Scherry /* $NetBSD: bus_private.h,v 1.10 2019/02/14 06:59:24 cherry Exp $ */
21d12c531Syamt
31d12c531Syamt /*-
41d12c531Syamt * Copyright (c)2005 YAMAMOTO Takashi,
51d12c531Syamt * All rights reserved.
61d12c531Syamt *
71d12c531Syamt * Redistribution and use in source and binary forms, with or without
81d12c531Syamt * modification, are permitted provided that the following conditions
91d12c531Syamt * are met:
101d12c531Syamt * 1. Redistributions of source code must retain the above copyright
111d12c531Syamt * notice, this list of conditions and the following disclaimer.
121d12c531Syamt * 2. Redistributions in binary form must reproduce the above copyright
131d12c531Syamt * notice, this list of conditions and the following disclaimer in the
141d12c531Syamt * documentation and/or other materials provided with the distribution.
151d12c531Syamt *
161d12c531Syamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
171d12c531Syamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
181d12c531Syamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
191d12c531Syamt * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
201d12c531Syamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
211d12c531Syamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
221d12c531Syamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
231d12c531Syamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
241d12c531Syamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
251d12c531Syamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
261d12c531Syamt * SUCH DAMAGE.
271d12c531Syamt */
281d12c531Syamt
291d12c531Syamt #include <uvm/uvm_extern.h>
3098a8e8b4Sbouyer #include "opt_xen.h"
311d12c531Syamt
32*f3ad8a34Scherry #ifdef XENPV
331d12c531Syamt #define _BUS_PHYS_TO_BUS(pa) ((bus_addr_t)xpmap_ptom(pa))
34aeeb0b33Sbouyer #define _BUS_BUS_TO_PHYS(ba) ((paddr_t)xpmap_mtop(ba))
351d12c531Syamt #define _BUS_VIRT_TO_BUS(pm, va) _bus_virt_to_bus((pm), (va))
36aeeb0b33Sbouyer #define _BUS_BUS_TO_VM_PAGE(ba) (PHYS_TO_VM_PAGE(xpmap_mtop(ba)))
37aeeb0b33Sbouyer #define _BUS_PMAP_ENTER(pmap, va, ba, prot, flags) \
38aeeb0b33Sbouyer pmap_enter(pmap, va, xpmap_mtop(ba), prot, flags)
391d12c531Syamt
40fbae48b9Sperry static __inline bus_addr_t _bus_virt_to_bus(struct pmap *, vaddr_t);
411d12c531Syamt
42fbae48b9Sperry static __inline bus_addr_t
_bus_virt_to_bus(struct pmap * pm,vaddr_t va)431d12c531Syamt _bus_virt_to_bus(struct pmap *pm, vaddr_t va)
441d12c531Syamt {
451d12c531Syamt bus_addr_t ba;
461d12c531Syamt
471d12c531Syamt if (!pmap_extract_ma(pm, va, &ba)) {
481d12c531Syamt panic("_bus_virt_to_bus");
491d12c531Syamt }
501d12c531Syamt
511d12c531Syamt return ba;
521d12c531Syamt }
531d12c531Syamt
540944c0faSbouyer /* we need our own bus_dmamem_alloc_range */
55f60ca602Sbouyer #define _BUS_DMAMEM_ALLOC_RANGE _xen_bus_dmamem_alloc_range
560944c0faSbouyer int _xen_bus_dmamem_alloc_range(bus_dma_tag_t, bus_size_t, bus_size_t,
570944c0faSbouyer bus_size_t, bus_dma_segment_t *, int, int *, int,
580944c0faSbouyer bus_addr_t, bus_addr_t);
590944c0faSbouyer
600944c0faSbouyer /*
610944c0faSbouyer * The higher machine address of our allocated range isn't know and can change
620944c0faSbouyer * over time. Just assume it's the largest possible value.
630944c0faSbouyer */
644e541343Sbouyer #if defined(_LP64) || defined(PAE)
654e541343Sbouyer #define _BUS_AVAIL_END ((bus_addr_t)0xffffffffffffffff)
664e541343Sbouyer #else
670944c0faSbouyer #define _BUS_AVAIL_END ((bus_addr_t)0xffffffff)
684e541343Sbouyer #endif
69*f3ad8a34Scherry #endif /* XENPV */
701d12c531Syamt #include <x86/bus_private.h>
71*f3ad8a34Scherry
72