1 #ifndef _ALPHA_HARDIRQ_H
2 #define _ALPHA_HARDIRQ_H
4 #include <linux/config.h>
5 #include <linux/threads.h>
6 #include <linux/cache.h>
9 /* entry.S is sensitive to the offsets of these fields */
11 unsigned long __softirq_pending;
12 } ____cacheline_aligned irq_cpustat_t;
14 #include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
16 void ack_bad_irq(unsigned int irq);
18 #define HARDIRQ_BITS 12
21 * The hardirq mask has to be large enough to have
22 * space for potentially nestable IRQ sources in the system
23 * to nest on a single CPU. On Alpha, interrupts are masked at the CPU
24 * by IPL as well as at the system level. We only have 8 IPLs (UNIX PALcode)
25 * so we really only have 8 nestable IRQs, but allow some overhead
27 #if (1 << HARDIRQ_BITS) < 16
28 #error HARDIRQ_BITS is too low!
31 #endif /* _ALPHA_HARDIRQ_H */