target/linux/ubicom32/files/arch/ubicom32/include/asm/hardirq.h

   1 /*
   2  * arch/ubicom32/include/asm/hardirq.h
   3  *   Definition of ack_bad_irq() for Ubicom32 architecture.
   4  *
   5  * (C) Copyright 2009, Ubicom, Inc.
   6  * Copyright (C) 1997, 98, 99, 2000, 01, 05 Ralf Baechle (ralf@linux-mips.org)
   7  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
   8  * Copyright (C) 2001 MIPS Technologies, Inc.
   9  *
  10  * This file is part of the Ubicom32 Linux Kernel Port.
  11  *
  12  * The Ubicom32 Linux Kernel Port is free software: you can redistribute
  13  * it and/or modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation, either version 2 of the
  15  * License, or (at your option) any later version.
  16  *
  17  * The Ubicom32 Linux Kernel Port is distributed in the hope that it
  18  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  19  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  20  * the GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with the Ubicom32 Linux Kernel Port.  If not,
  24  * see <http://www.gnu.org/licenses/>.
  25  *
  26  * Ubicom32 implementation derived from (with many thanks):
  27  *   arch/m68knommu
  28  *   arch/blackfin
  29  *   arch/parisc
  30  */
  31 #ifndef _ASM_UBICOM32_HARDIRQ_H
  32 #define _ASM_UBICOM32_HARDIRQ_H
  33
  34 #include <linux/threads.h>
  35 #include <linux/irq.h>
  36
  37 /*
  38  * The hardirq mask has to be large enough to have space
  39  * for potentially all IRQ sources in the system nesting
  40  * on a single CPU.  For Ubicom32, we have 64 IRQ sources.
  41  */
  42 #define HARDIRQ_BITS    6
  43 #if (1 << HARDIRQ_BITS) < NR_IRQS
  44 # error HARDIRQ_BITS is too low!
  45 #endif
  46
  47 typedef struct {
  48         unsigned int __softirq_pending;
  49 } ____cacheline_aligned irq_cpustat_t;
  50
  51 #include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
  52
  53 extern void ack_bad_irq(unsigned int irq);
  54
  55 #endif /* _ASM_UBICOM32_HARDIRQ_H */