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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-frv/irq.h
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Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-frv/irq.h')
-rw-r--r--include/asm-frv/irq.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-frv/irq.h b/include/asm-frv/irq.h
new file mode 100644
index 0000000..2c16d8d
--- /dev/null
+++ b/include/asm-frv/irq.h
@@ -0,0 +1,44 @@
+/* irq.h: FRV IRQ definitions
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.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.
+ */
+
+#ifndef _ASM_IRQ_H_
+#define _ASM_IRQ_H_
+
+#include <linux/config.h>
+
+/*
+ * the system has an on-CPU PIC and another PIC on the FPGA and other PICs on other peripherals,
+ * so we do some routing in irq-routing.[ch] to reduce the number of false-positives seen by
+ * drivers
+ */
+
+/* this number is used when no interrupt has been assigned */
+#define NO_IRQ (-1)
+
+#define NR_IRQ_LOG2_ACTIONS_PER_GROUP 5
+#define NR_IRQ_ACTIONS_PER_GROUP (1 << NR_IRQ_LOG2_ACTIONS_PER_GROUP)
+#define NR_IRQ_GROUPS 4
+#define NR_IRQS (NR_IRQ_ACTIONS_PER_GROUP * NR_IRQ_GROUPS)
+
+/* probe returns a 32-bit IRQ mask:-/ */
+#define MIN_PROBE_IRQ (NR_IRQS - 32)
+
+static inline int irq_canonicalize(int irq)
+{
+ return irq;
+}
+
+extern void disable_irq_nosync(unsigned int irq);
+extern void disable_irq(unsigned int irq);
+extern void enable_irq(unsigned int irq);
+
+
+#endif /* _ASM_IRQ_H_ */