2 # Copyright (c) 2015 Roger Pau Monné <royger@FreeBSD.org>
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
8 # 1. Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # 2. Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in the
12 # documentation and/or other materials provided with the distribution.
14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 # Default implementations of some methods.
37 static struct resource *
38 xenmem_generic_alloc(device_t dev, device_t child, int *res_id,
43 parent = device_get_parent(dev);
46 return (XENMEM_ALLOC(parent, child, res_id, size));
50 xenmem_generic_free(device_t dev, device_t child, int res_id,
55 parent = device_get_parent(dev);
58 return (XENMEM_FREE(parent, child, res_id, res));
63 * @brief Request for unused physical memory regions.
65 * @param _dev the device whose child was being probed.
66 * @param _child the child device which failed to probe.
67 * @param _res_id a pointer to the resource identifier.
68 * @param _size size of the required memory region.
70 * @returns the resource which was allocated or @c NULL if no
71 * resource could be allocated.
73 METHOD struct resource * alloc {
78 } DEFAULT xenmem_generic_alloc;
81 * @brief Free physical memory regions.
83 * @param _dev the device whose child was being probed.
84 * @param _child the child device which failed to probe.
85 * @param _res_id the resource identifier.
86 * @param _res the resource.
88 * @returns 0 on success, otherwise an error code.
94 struct resource *_res;
95 } DEFAULT xenmem_generic_free;