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authorDaniel Hellstrom <daniel@gaisler.com>2008-03-28 09:47:00 +0100
committerDaniel Hellstrom <daniel@gaisler.com>2008-04-08 07:58:32 +0000
commitc2f02da21a3f37f0878554eebc785e04fdc4e128 (patch)
tree169e423067d8298e0568ff7b13c5419185008b38 /include/asm-sparc/irq.h
parentaeff6d503b6006573d5c6b04fc658a64bebee5fa (diff)
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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.h49
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