mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 05:42:58 +00:00
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
|
/* IRQ functions
|
||
|
|
*
|
||
|
|
* (C) Copyright 2007
|
||
|
|
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation; either version 2 of
|
||
|
|
* the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __SPARC_IRQ_H__
|
||
|
|
#define __SPARC_IRQ_H__
|
||
|
|
|
||
|
|
#include <asm/psr.h>
|
||
|
|
|
||
|
|
/* Set SPARC Processor Interrupt Level */
|
||
|
|
extern inline void set_pil(unsigned int level)
|
||
|
|
{
|
||
|
|
unsigned int psr = get_psr();
|
||
|
|
|
||
|
|
put_psr((psr & ~PSR_PIL) | ((level & 0xf) << PSR_PIL_OFS));
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Get SPARC Processor Interrupt Level */
|
||
|
|
extern inline unsigned int get_pil(void)
|
||
|
|
{
|
||
|
|
unsigned int psr = get_psr();
|
||
|
|
return (psr & PSR_PIL) >> PSR_PIL_OFS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Disables interrupts and return current PIL value */
|
||
|
|
extern int intLock(void);
|
||
|
|
|
||
|
|
/* Sets the PIL to oldLevel */
|
||
|
|
extern void intUnlock(int oldLevel);
|
||
|
|
|
||
|
|
#endif
|