mirror of https://github.com/dzavalishin/oskit/
129 lines
3.1 KiB
C
Executable File
129 lines
3.1 KiB
C
Executable File
/*
|
|
* 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 <string.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 KNIT
|
|
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 KNIT
|
|
/*
|
|
* 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
|