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-rw-r--r--arch/mips/netlogic/xlr/wakeup.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/mips/netlogic/xlr/wakeup.c b/arch/mips/netlogic/xlr/wakeup.c
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1/*
2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
3 * reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the NetLogic
9 * license below:
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in
19 * the documentation and/or other materials provided with the
20 * distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#include <linux/init.h>
36#include <linux/threads.h>
37
38#include <asm/asm.h>
39#include <asm/asm-offsets.h>
40#include <asm/mipsregs.h>
41#include <asm/addrspace.h>
42#include <asm/string.h>
43
44#include <asm/netlogic/haldefs.h>
45#include <asm/netlogic/common.h>
46#include <asm/netlogic/mips-extns.h>
47
48#include <asm/netlogic/xlr/iomap.h>
49#include <asm/netlogic/xlr/pic.h>
50
51int __cpuinit xlr_wakeup_secondary_cpus(void)
52{
53 unsigned int i, boot_cpu;
54
55 /*
56 * In case of RMI boot, hit with NMI to get the cores
57 * from bootloader to linux code.
58 */
59 boot_cpu = hard_smp_processor_id();
60 nlm_set_nmi_handler(nlm_rmiboot_preboot);
61 for (i = 0; i < NR_CPUS; i++) {
62 if (i == boot_cpu || (nlm_cpumask & (1u << i)) == 0)
63 continue;
64 nlm_pic_send_ipi(nlm_pic_base, i, 1, 1); /* send NMI */
65 }
66
67 return 0;
68}