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49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* IRQ functions
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*
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* (C) Copyright 2007
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* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#ifndef __SPARC_IRQ_H__
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#define __SPARC_IRQ_H__
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#include <asm/psr.h>
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/* Set SPARC Processor Interrupt Level */
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extern inline void set_pil(unsigned int level)
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{
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unsigned int psr = get_psr();
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put_psr((psr & ~PSR_PIL) | ((level & 0xf) << PSR_PIL_OFS));
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}
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/* Get SPARC Processor Interrupt Level */
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extern inline unsigned int get_pil(void)
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{
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unsigned int psr = get_psr();
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return (psr & PSR_PIL) >> PSR_PIL_OFS;
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}
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/* Disables interrupts and return current PIL value */
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extern int intLock(void);
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/* Sets the PIL to oldLevel */
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extern void intUnlock(int oldLevel);
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#endif
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