96 lines
3.3 KiB
Mathematica
96 lines
3.3 KiB
Mathematica
|
#-
|
||
|
|
# Copyright (c) 2015 Roger Pau Monné <royger@FreeBSD.org>
|
||
|
|
# All rights reserved.
|
||
|
|
#
|
||
|
|
# Redistribution and use in source and binary forms, with or without
|
||
|
|
# modification, are permitted provided that the following conditions
|
||
|
|
# are met:
|
||
|
|
# 1. Redistributions of source code must retain the above copyright
|
||
|
|
# notice, this list of conditions and the following disclaimer.
|
||
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
# notice, this list of conditions and the following disclaimer in the
|
||
|
|
# documentation and/or other materials provided with the distribution.
|
||
|
|
#
|
||
|
|
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
# SUCH DAMAGE.
|
||
|
|
#
|
||
|
|
# $FreeBSD$
|
||
|
|
#
|
||
|
|
|
||
|
|
#include <sys/bus.h>
|
||
|
|
|
||
|
|
INTERFACE xenmem;
|
||
|
|
|
||
|
|
#
|
||
|
|
# Default implementations of some methods.
|
||
|
|
#
|
||
|
|
CODE {
|
||
|
|
static struct resource *
|
||
|
|
xenmem_generic_alloc(device_t dev, device_t child, int *res_id,
|
||
|
|
size_t size)
|
||
|
|
{
|
||
|
|
device_t parent;
|
||
|
|
|
||
|
|
parent = device_get_parent(dev);
|
||
|
|
if (parent == NULL)
|
||
|
|
return (NULL);
|
||
|
|
return (XENMEM_ALLOC(parent, child, res_id, size));
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
xenmem_generic_free(device_t dev, device_t child, int res_id,
|
||
|
|
struct resource *res)
|
||
|
|
{
|
||
|
|
device_t parent;
|
||
|
|
|
||
|
|
parent = device_get_parent(dev);
|
||
|
|
if (parent == NULL)
|
||
|
|
return (ENXIO);
|
||
|
|
return (XENMEM_FREE(parent, child, res_id, res));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Request for unused physical memory regions.
|
||
|
|
*
|
||
|
|
* @param _dev the device whose child was being probed.
|
||
|
|
* @param _child the child device which failed to probe.
|
||
|
|
* @param _res_id a pointer to the resource identifier.
|
||
|
|
* @param _size size of the required memory region.
|
||
|
|
*
|
||
|
|
* @returns the resource which was allocated or @c NULL if no
|
||
|
|
* resource could be allocated.
|
||
|
|
*/
|
||
|
|
METHOD struct resource * alloc {
|
||
|
|
device_t _dev;
|
||
|
|
device_t _child;
|
||
|
|
int *_res_id;
|
||
|
|
size_t _size;
|
||
|
|
} DEFAULT xenmem_generic_alloc;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Free physical memory regions.
|
||
|
|
*
|
||
|
|
* @param _dev the device whose child was being probed.
|
||
|
|
* @param _child the child device which failed to probe.
|
||
|
|
* @param _res_id the resource identifier.
|
||
|
|
* @param _res the resource.
|
||
|
|
*
|
||
|
|
* @returns 0 on success, otherwise an error code.
|
||
|
|
*/
|
||
|
|
METHOD int free {
|
||
|
|
device_t _dev;
|
||
|
|
device_t _child;
|
||
|
|
int _res_id;
|
||
|
|
struct resource *_res;
|
||
|
|
} DEFAULT xenmem_generic_free;
|