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/*
* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
* reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the NetLogic
* license below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/init.h>
#include <asm/asm.h>
#include <asm/asm-offsets.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
/*
* Early code for secondary CPUs. This will get them out of the bootloader
* code and into linux. Needed because the bootloader area will be taken
* and initialized by linux.
*/
__CPUINIT
NESTED(prom_pre_boot_secondary_cpus, 16, sp)
.set mips64
mfc0 t0, $15, 1 # read ebase
andi t0, 0x1f # t0 has the processor_id()
sll t0, 2 # offset in cpu array
PTR_LA t1, nlm_cpu_ready # mark CPU ready
PTR_ADDU t1, t0
li t2, 1
sw t2, 0(t1)
PTR_LA t1, nlm_cpu_unblock
PTR_ADDU t1, t0
1: lw t2, 0(t1) # wait till unblocked
beqz t2, 1b
nop
PTR_LA t1, nlm_next_sp
PTR_L sp, 0(t1)
PTR_LA t1, nlm_next_gp
PTR_L gp, 0(t1)
PTR_LA t0, nlm_early_init_secondary
jalr t0
nop
PTR_LA t0, smp_bootstrap
jr t0
nop
END(prom_pre_boot_secondary_cpus)
__FINIT
/*
* NMI code, used for CPU wakeup, copied to reset entry
*/
NESTED(nlm_boot_smp_nmi, 0, sp)
.set push
.set noat
.set mips64
.set noreorder
/* Clear the NMI and BEV bits */
MFC0 k0, CP0_STATUS
li k1, 0xffb7ffff
and k0, k0, k1
MTC0 k0, CP0_STATUS
PTR_LA k1, secondary_entry_point
PTR_L k0, 0(k1)
jr k0
nop
.set pop
END(nlm_boot_smp_nmi)
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