cvmx-sysinfo.c

 1/***********************license start***************
 2 * Author: Cavium Networks
 3 *
 4 * Contact: support@caviumnetworks.com
 5 * This file is part of the OCTEON SDK
 6 *
 7 * Copyright (c) 2003-2008 Cavium Networks
 8 *
 9 * This file is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License, Version 2, as
11 * published by the Free Software Foundation.
12 *
13 * This file is distributed in the hope that it will be useful, but
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16 * NONINFRINGEMENT.  See the GNU General Public License for more
17 * details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this file; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 * or visit http://www.gnu.org/licenses/.
23 *
24 * This file may also be available under a different license from Cavium.
25 * Contact Cavium Networks for more information
26 ***********************license end**************************************/
27
28/*
29 * This module provides system/board/application information obtained
30 * by the bootloader.
31 */
32#include <linux/export.h>
33
34#include <asm/octeon/cvmx.h>
35#include <asm/octeon/cvmx-sysinfo.h>
36
37/*
38 * This structure defines the private state maintained by sysinfo module.
39 */
40static struct cvmx_sysinfo sysinfo;	   /* system information */
41
42/*
43 * Returns the application information as obtained
44 * by the bootloader.  This provides the core mask of the cores
45 * running the same application image, as well as the physical
46 * memory regions available to the core.
47 */
48struct cvmx_sysinfo *cvmx_sysinfo_get(void)
49{
50	return &sysinfo;
51}
52EXPORT_SYMBOL(cvmx_sysinfo_get);
53