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