diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-08-26 10:25:59 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-08-26 10:25:59 +0200 |
commit | 3cf430b0636045dc524759a0852293ba037732a7 (patch) | |
tree | 2c4e03f9028dc23ab4e6ca5a3a5a263af397984f /arch/alpha/include/asm/irq.h | |
parent | 93dcf55f828b035fc93fc19eb03c1390e1e6d570 (diff) | |
parent | 83097aca8567a0bd593534853b71fe0fa9a75d69 (diff) |
Merge branch 'linus' into sched/devel
Diffstat (limited to 'arch/alpha/include/asm/irq.h')
-rw-r--r-- | arch/alpha/include/asm/irq.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h new file mode 100644 index 00000000000..06377400dc0 --- /dev/null +++ b/arch/alpha/include/asm/irq.h @@ -0,0 +1,91 @@ +#ifndef _ALPHA_IRQ_H +#define _ALPHA_IRQ_H + +/* + * linux/include/alpha/irq.h + * + * (C) 1994 Linus Torvalds + */ + +#include <linux/linkage.h> + +#if defined(CONFIG_ALPHA_GENERIC) + +/* Here NR_IRQS is not exact, but rather an upper bound. This is used + many places throughout the kernel to size static arrays. That's ok, + we'll use alpha_mv.nr_irqs when we want the real thing. */ + +/* When LEGACY_START_ADDRESS is selected, we leave out: + TITAN + WILDFIRE + MARVEL + + This helps keep the kernel object size reasonable for the majority + of machines. +*/ + +# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS) +# define NR_IRQS (128) /* max is RAWHIDE/TAKARA */ +# else +# define NR_IRQS (32768 + 16) /* marvel - 32 pids */ +# endif + +#elif defined(CONFIG_ALPHA_CABRIOLET) || \ + defined(CONFIG_ALPHA_EB66P) || \ + defined(CONFIG_ALPHA_EB164) || \ + defined(CONFIG_ALPHA_PC164) || \ + defined(CONFIG_ALPHA_LX164) +# define NR_IRQS 35 + +#elif defined(CONFIG_ALPHA_EB66) || \ + defined(CONFIG_ALPHA_EB64P) || \ + defined(CONFIG_ALPHA_MIKASA) +# define NR_IRQS 32 + +#elif defined(CONFIG_ALPHA_ALCOR) || \ + defined(CONFIG_ALPHA_MIATA) || \ + defined(CONFIG_ALPHA_RUFFIAN) || \ + defined(CONFIG_ALPHA_RX164) || \ + defined(CONFIG_ALPHA_NORITAKE) +# define NR_IRQS 48 + +#elif defined(CONFIG_ALPHA_SABLE) || \ + defined(CONFIG_ALPHA_SX164) +# define NR_IRQS 40 + +#elif defined(CONFIG_ALPHA_DP264) || \ + defined(CONFIG_ALPHA_LYNX) || \ + defined(CONFIG_ALPHA_SHARK) || \ + defined(CONFIG_ALPHA_EIGER) +# define NR_IRQS 64 + +#elif defined(CONFIG_ALPHA_TITAN) +#define NR_IRQS 80 + +#elif defined(CONFIG_ALPHA_RAWHIDE) || \ + defined(CONFIG_ALPHA_TAKARA) +# define NR_IRQS 128 + +#elif defined(CONFIG_ALPHA_WILDFIRE) +# define NR_IRQS 2048 /* enuff for 8 QBBs */ + +#elif defined(CONFIG_ALPHA_MARVEL) +# define NR_IRQS (32768 + 16) /* marvel - 32 pids*/ + +#else /* everyone else */ +# define NR_IRQS 16 +#endif + +static __inline__ int irq_canonicalize(int irq) +{ + /* + * XXX is this true for all Alpha's? The old serial driver + * did it this way for years without any complaints, so.... + */ + return ((irq == 2) ? 9 : irq); +} + +struct pt_regs; +extern void (*perf_irq)(unsigned long, struct pt_regs *); + +#endif /* _ALPHA_IRQ_H */ |