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/*- * Copyright (c) 2004-2010 Juli Mallett <jmallett@FreeBSD.org> * All rights reserved. * * 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 THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR 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. * * $FreeBSD: release/9.1.0/sys/mips/cavium/asm_octeon.S 224661 2011-08-05 22:54:42Z marcel $ */ #include <machine/asm.h> .set noreorder #ifdef SMP /* * This function must be implemented in assembly because it is called early * in AP boot without a valid stack. */ LEAF(platform_processor_id) .set push .set mips32r2 jr ra rdhwr v0, $0 .set pop END(platform_processor_id) /* * Called on APs to wait until they are told to launch. */ LEAF(octeon_ap_wait) jal platform_processor_id nop 1: lld t0, octeon_ap_boot bne v0, t0, 1b nop move t0, zero scd t0, octeon_ap_boot beqz t0, 1b nop j mpentry nop END(octeon_ap_wait) #endif