mirror of https://gitee.com/openkylin/linux.git
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/*
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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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#ifndef _ASM_NLM_MIPS_EXTS_H
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#define _ASM_NLM_MIPS_EXTS_H
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/*
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* XLR and XLP interrupt request and interrupt mask registers
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*/
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#define read_c0_eirr() __read_64bit_c0_register($9, 6)
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#define read_c0_eimr() __read_64bit_c0_register($9, 7)
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#define write_c0_eirr(val) __write_64bit_c0_register($9, 6, val)
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/*
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* Writing EIMR in 32 bit is a special case, the lower 8 bit of the
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* EIMR is shadowed in the status register, so we cannot save and
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* restore status register for split read.
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*/
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#define write_c0_eimr(val) \
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do { \
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if (sizeof(unsigned long) == 4) { \
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unsigned long __flags; \
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\
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local_irq_save(__flags); \
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__asm__ __volatile__( \
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".set\tmips64\n\t" \
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"dsll\t%L0, %L0, 32\n\t" \
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"dsrl\t%L0, %L0, 32\n\t" \
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"dsll\t%M0, %M0, 32\n\t" \
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"or\t%L0, %L0, %M0\n\t" \
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"dmtc0\t%L0, $9, 7\n\t" \
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".set\tmips0" \
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: : "r" (val)); \
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__flags = (__flags & 0xffff00ff) | (((val) & 0xff) << 8);\
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local_irq_restore(__flags); \
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} else \
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__write_64bit_c0_register($9, 7, (val)); \
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} while (0)
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static inline int hard_smp_processor_id(void)
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{
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return __read_32bit_c0_register($15, 1) & 0x3ff;
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}
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#endif /*_ASM_NLM_MIPS_EXTS_H */
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