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author | Daniel Hellstrom <daniel@gaisler.com> | 2008-03-28 08:47:00 (GMT) |
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committer | Daniel Hellstrom <daniel@gaisler.com> | 2008-04-08 07:58:32 (GMT) |
commit | c2f02da21a3f37f0878554eebc785e04fdc4e128 (patch) | |
tree | 169e423067d8298e0568ff7b13c5419185008b38 /include/asm-sparc/irq.h | |
parent | aeff6d503b6006573d5c6b04fc658a64bebee5fa (diff) | |
download | u-boot-c2f02da21a3f37f0878554eebc785e04fdc4e128.tar.xz |
SPARC: Added generic support for SPARC architecture.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Diffstat (limited to 'include/asm-sparc/irq.h')
-rw-r--r-- | include/asm-sparc/irq.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-sparc/irq.h b/include/asm-sparc/irq.h new file mode 100644 index 0000000..c5538c0 --- /dev/null +++ b/include/asm-sparc/irq.h @@ -0,0 +1,49 @@ +/* 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 |