diff options
author | Arnd Bergmann <arnd@arndb.de> | 2009-05-13 22:56:33 +0000 |
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committer | Arnd Bergmann <arnd@klappe2.(none)> | 2009-06-11 21:02:37 +0200 |
commit | aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d (patch) | |
tree | 5cc3e500ebb234ad82928de0ed680373c616dc44 /include/asm-generic/hardirq.h | |
parent | 9858c60cc2d33b18367b2bc6947e3ea23db26ccb (diff) | |
download | linux-aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d.tar.bz2 |
asm-generic: add generic versions of common headers
These are all kernel internal interfaces that get copied
around a lot. In most cases, architectures can provide
their own optimized versions, but these generic versions
can work as well.
I have tried to use the most common contents of each
header to allow existing architectures to migrate easily.
Thanks to Remis for suggesting a number of cleanups.
Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/asm-generic/hardirq.h')
-rw-r--r-- | include/asm-generic/hardirq.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h new file mode 100644 index 000000000000..3d5d2c906ab3 --- /dev/null +++ b/include/asm-generic/hardirq.h @@ -0,0 +1,34 @@ +#ifndef __ASM_GENERIC_HARDIRQ_H +#define __ASM_GENERIC_HARDIRQ_H + +#include <linux/cache.h> +#include <linux/threads.h> +#include <linux/irq.h> + +typedef struct { + unsigned long __softirq_pending; +} ____cacheline_aligned irq_cpustat_t; + +#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ + +#ifndef HARDIRQ_BITS +#define HARDIRQ_BITS 8 +#endif + +/* + * The hardirq mask has to be large enough to have + * space for potentially all IRQ sources in the system + * nesting on a single CPU: + */ +#if (1 << HARDIRQ_BITS) < NR_IRQS +# error HARDIRQ_BITS is too low! +#endif + +#ifndef ack_bad_irq +static inline void ack_bad_irq(unsigned int irq) +{ + printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq); +} +#endif + +#endif /* __ASM_GENERIC_HARDIRQ_H */ |