2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
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
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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
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,
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35 #include <linux/delay.h>
36 #include <linux/threads.h>
39 #include <asm/asm-offsets.h>
40 #include <asm/mipsregs.h>
41 #include <asm/addrspace.h>
42 #include <asm/string.h>
44 #include <asm/netlogic/haldefs.h>
45 #include <asm/netlogic/common.h>
46 #include <asm/netlogic/mips-extns.h>
48 #include <asm/netlogic/xlr/iomap.h>
49 #include <asm/netlogic/xlr/pic.h>
51 int xlr_wakeup_secondary_cpus(void)
53 struct nlm_soc_info
*nodep
;
54 unsigned int i
, j
, boot_cpu
;
55 volatile u32
*cpu_ready
= nlm_get_boot_data(BOOT_CPU_READY
);
58 * In case of RMI boot, hit with NMI to get the cores
59 * from bootloader to linux code.
61 nodep
= nlm_get_node(0);
62 boot_cpu
= hard_smp_processor_id();
63 nlm_set_nmi_handler(nlm_rmiboot_preboot
);
64 for (i
= 0; i
< NR_CPUS
; i
++) {
65 if (i
== boot_cpu
|| !cpumask_test_cpu(i
, &nlm_cpumask
))
67 nlm_pic_send_ipi(nodep
->picbase
, i
, 1, 1); /* send NMI */
70 /* Fill up the coremask early */
72 for (i
= 1; i
< nlm_cores_per_node(); i
++) {
73 for (j
= 1000000; j
> 0; j
--) {
74 if (cpu_ready
[i
* NLM_THREADS_PER_CORE
])
79 nodep
->coremask
|= (1u << i
);
81 pr_err("Failed to wakeup core %d\n", i
);