arch/arm64/include/asm/hardirq.h

   1 /*
   2  * Copyright (C) 2012 ARM Ltd.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #ifndef __ASM_HARDIRQ_H
  17 #define __ASM_HARDIRQ_H
  18
  19 #include <linux/cache.h>
  20 #include <linux/threads.h>
  21 #include <asm/irq.h>
  22
  23 #define NR_IPI  4
  24
  25 typedef struct {
  26         unsigned int __softirq_pending;
  27 #ifdef CONFIG_SMP
  28         unsigned int ipi_irqs[NR_IPI];
  29 #endif
  30 } ____cacheline_aligned irq_cpustat_t;
  31
  32 #include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
  33
  34 #define __inc_irq_stat(cpu, member)     __IRQ_STAT(cpu, member)++
  35 #define __get_irq_stat(cpu, member)     __IRQ_STAT(cpu, member)
  36
  37 #ifdef CONFIG_SMP
  38 u64 smp_irq_stat_cpu(unsigned int cpu);
  39 #define arch_irq_stat_cpu       smp_irq_stat_cpu
  40 #endif
  41
  42 #define __ARCH_IRQ_EXIT_IRQS_DISABLED   1
  43
  44 static inline void ack_bad_irq(unsigned int irq)
  45 {
  46         extern unsigned long irq_err_count;
  47         irq_err_count++;
  48 }
  49
  50 extern void handle_IRQ(unsigned int, struct pt_regs *);
  51
  52 /*
  53  * No arch-specific IRQ flags.
  54  */
  55 #define set_irq_flags(irq, flags)
  56
  57 #endif /* __ASM_HARDIRQ_H */