1 | /* $NetBSD: bus_private.h,v 1.9 2008/01/23 19:46:45 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 | #include "opt_xen.h" |
31 | |
32 | #define _BUS_PHYS_TO_BUS(pa) ((bus_addr_t)xpmap_ptom(pa)) |
33 | #define _BUS_BUS_TO_PHYS(ba) ((paddr_t)xpmap_mtop(ba)) |
34 | #define _BUS_VIRT_TO_BUS(pm, va) _bus_virt_to_bus((pm), (va)) |
35 | #define _BUS_BUS_TO_VM_PAGE(ba) (PHYS_TO_VM_PAGE(xpmap_mtop(ba))) |
36 | #define _BUS_PMAP_ENTER(pmap, va, ba, prot, flags) \ |
37 | pmap_enter(pmap, va, xpmap_mtop(ba), prot, flags) |
38 | |
39 | static __inline bus_addr_t _bus_virt_to_bus(struct pmap *, vaddr_t); |
40 | |
41 | static __inline bus_addr_t |
42 | _bus_virt_to_bus(struct pmap *pm, vaddr_t va) |
43 | { |
44 | bus_addr_t ba; |
45 | |
46 | if (!pmap_extract_ma(pm, va, &ba)) { |
47 | panic("_bus_virt_to_bus" ); |
48 | } |
49 | |
50 | return ba; |
51 | } |
52 | |
53 | /* we need our own bus_dmamem_alloc_range */ |
54 | #define _BUS_DMAMEM_ALLOC_RANGE _xen_bus_dmamem_alloc_range |
55 | int _xen_bus_dmamem_alloc_range(bus_dma_tag_t, bus_size_t, bus_size_t, |
56 | bus_size_t, bus_dma_segment_t *, int, int *, int, |
57 | bus_addr_t, bus_addr_t); |
58 | |
59 | /* |
60 | * The higher machine address of our allocated range isn't know and can change |
61 | * over time. Just assume it's the largest possible value. |
62 | */ |
63 | #if defined(_LP64) || defined(PAE) |
64 | #define _BUS_AVAIL_END ((bus_addr_t)0xffffffffffffffff) |
65 | #else |
66 | #define _BUS_AVAIL_END ((bus_addr_t)0xffffffff) |
67 | #endif |
68 | |
69 | #include <x86/bus_private.h> |
70 | |