arch/parisc/include/asm/hardirq.h

   1 /* hardirq.h: PA-RISC hard IRQ support.
   2  *
   3  * Copyright (C) 2001 Matthew Wilcox <matthew@wil.cx>
   4  * Copyright (C) 2013 Helge Deller <deller@gmx.de>
   5  */
   6
   7 #ifndef _PARISC_HARDIRQ_H
   8 #define _PARISC_HARDIRQ_H
   9
  10 #include <linux/cache.h>
  11 #include <linux/threads.h>
  12 #include <linux/irq.h>
  13
  14 #ifdef CONFIG_IRQSTACKS
  15 #define __ARCH_HAS_DO_SOFTIRQ
  16 #endif
  17
  18 typedef struct {
  19         unsigned int __softirq_pending;
  20 #ifdef CONFIG_DEBUG_STACKOVERFLOW
  21         unsigned int kernel_stack_usage;
  22 #ifdef CONFIG_IRQSTACKS
  23         unsigned int irq_stack_usage;
  24         unsigned int irq_stack_counter;
  25 #endif
  26 #endif
  27 #ifdef CONFIG_SMP
  28         unsigned int irq_resched_count;
  29         unsigned int irq_call_count;
  30 #endif
  31         unsigned int irq_tlb_count;
  32 } ____cacheline_aligned irq_cpustat_t;
  33
  34 DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
  35
  36 #define __ARCH_IRQ_STAT
  37 #define __IRQ_STAT(cpu, member) (irq_stat[cpu].member)
  38 #define inc_irq_stat(member)    this_cpu_inc(irq_stat.member)
  39 #define __inc_irq_stat(member)  __this_cpu_inc(irq_stat.member)
  40 #define local_softirq_pending() this_cpu_read(irq_stat.__softirq_pending)
  41
  42 #define __ARCH_SET_SOFTIRQ_PENDING
  43
  44 #define set_softirq_pending(x)  \
  45                 this_cpu_write(irq_stat.__softirq_pending, (x))
  46 #define or_softirq_pending(x)   this_cpu_or(irq_stat.__softirq_pending, (x))
  47
  48 #define ack_bad_irq(irq) WARN(1, "unexpected IRQ trap at vector %02x\n", irq)
  49
  50 #endif /* _PARISC_HARDIRQ_H */