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85 lines
2.8 KiB
85 lines
2.8 KiB
/* |
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* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights |
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* reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the NetLogic |
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* license below: |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <linux/delay.h> |
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#include <linux/threads.h> |
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#include <asm/asm.h> |
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#include <asm/asm-offsets.h> |
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#include <asm/mipsregs.h> |
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#include <asm/addrspace.h> |
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#include <asm/string.h> |
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#include <asm/netlogic/haldefs.h> |
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#include <asm/netlogic/common.h> |
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#include <asm/netlogic/mips-extns.h> |
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#include <asm/netlogic/xlr/iomap.h> |
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#include <asm/netlogic/xlr/pic.h> |
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int xlr_wakeup_secondary_cpus(void) |
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{ |
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struct nlm_soc_info *nodep; |
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unsigned int i, j, boot_cpu; |
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volatile u32 *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY); |
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/* |
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* In case of RMI boot, hit with NMI to get the cores |
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* from bootloader to linux code. |
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*/ |
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nodep = nlm_get_node(0); |
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boot_cpu = hard_smp_processor_id(); |
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nlm_set_nmi_handler(nlm_rmiboot_preboot); |
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for (i = 0; i < NR_CPUS; i++) { |
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if (i == boot_cpu || !cpumask_test_cpu(i, &nlm_cpumask)) |
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continue; |
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nlm_pic_send_ipi(nodep->picbase, i, 1, 1); /* send NMI */ |
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} |
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/* Fill up the coremask early */ |
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nodep->coremask = 1; |
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for (i = 1; i < nlm_cores_per_node(); i++) { |
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for (j = 1000000; j > 0; j--) { |
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if (cpu_ready[i * NLM_THREADS_PER_CORE]) |
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break; |
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udelay(10); |
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} |
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if (j != 0) |
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nodep->coremask |= (1u << i); |
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else |
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pr_err("Failed to wakeup core %d\n", i); |
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} |
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return 0; |
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}
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