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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-frv/irq.h | |
download | op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz |
Linux-2.6.12-rc2v2.6.12-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.h | 44 |
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_ */ |