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/*
* Copyright (c) 1996, 1998, 1999 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Default memory interface object.
*/
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <oskit/com.h>
#include <oskit/dev/dev.h>
#include <oskit/dev/osenv_mem.h>
/*
* There is one and only one memory interface in this implementation.
*/
static struct oskit_osenv_mem_ops osenv_mem_ops;
#ifdef CPUNITS
struct oskit_osenv_mem osenv_mem_object = {&osenv_mem_ops};
#else
static struct oskit_osenv_mem osenv_mem_object = {&osenv_mem_ops};
#endif
static OSKIT_COMDECL
mem_query(oskit_osenv_mem_t *s, const oskit_iid_t *iid, void **out_ihandle)
{
if (memcmp(iid, &oskit_iunknown_iid, sizeof(*iid)) == 0 ||
memcmp(iid, &oskit_osenv_mem_iid, sizeof(*iid)) == 0) {
*out_ihandle = s;
return 0;
}
*out_ihandle = 0;
return OSKIT_E_NOINTERFACE;
};
static OSKIT_COMDECL_U
mem_addref(oskit_osenv_mem_t *s)
{
/* Only one object */
return 1;
}
static OSKIT_COMDECL_U
mem_release(oskit_osenv_mem_t *s)
{
/* Only one object */
return 1;
}
static void * OSKIT_COMCALL
mem_alloc(oskit_osenv_mem_t *o, oskit_size_t size,
osenv_memflags_t flags, unsigned align)
{
return osenv_mem_alloc(size, flags, align);
}
static OSKIT_COMDECL_V
mem_free(oskit_osenv_mem_t *o, void *block,
osenv_memflags_t flags, oskit_size_t size)
{
osenv_mem_free(block, flags, size);
}
static oskit_addr_t OSKIT_COMCALL
mem_getphys(oskit_osenv_mem_t *o, oskit_addr_t va)
{
return osenv_mem_get_phys(va);
}
static oskit_addr_t OSKIT_COMCALL
mem_getvirt(oskit_osenv_mem_t *o, oskit_addr_t pa)
{
return osenv_mem_get_virt(pa);
}
static oskit_addr_t OSKIT_COMCALL
mem_physmax(oskit_osenv_mem_t *o)
{
return osenv_mem_phys_max();
}
static OSKIT_COMDECL_U
mem_mapphys(oskit_osenv_mem_t *o, oskit_addr_t pa,
oskit_size_t size, void **addr, int flags)
{
return osenv_mem_map_phys(pa, size, addr, flags);
}
static struct oskit_osenv_mem_ops osenv_mem_ops = {
mem_query,
mem_addref,
mem_release,
mem_alloc,
mem_free,
mem_getphys,
mem_getvirt,
mem_physmax,
mem_mapphys,
};
#ifndef CPUNITS
/*
* Return a reference to the one and only memory interface object.
*/
oskit_osenv_mem_t *
oskit_create_osenv_mem(void)
{
return &osenv_mem_object;
}
#endif
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