arch/blackfin/include/asm/irq.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file COPYING in the main directory of this archive
   4  * for more details.
   5  *
   6  * Changed by HuTao Apr18, 2003
   7  *
   8  * Copyright was missing when I got the code so took from MIPS arch ...MaTed---
   9  * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle
  10  * Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001 by Ralf Baechle
  11  *
  12  * Adapted for BlackFin (ADI) by Ted Ma <mated@sympatico.ca>
  13  * Copyright (c) 2002 Arcturus Networks Inc. (www.arcturusnetworks.com)
  14  * Copyright (c) 2002 Lineo, Inc. <mattw@lineo.com>
  15  */
  16
  17 #ifndef _BFIN_IRQ_H_
  18 #define _BFIN_IRQ_H_
  19
  20 #include <linux/irqflags.h>
  21
  22 /* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */
  23 #include <mach/irq.h>
  24
  25 /* Xenomai IPIPE helpers */
  26 #define local_irq_restore_hw(x) local_irq_restore(x)
  27 #define local_irq_save_hw(x)    local_irq_save(x)
  28 #define local_irq_enable_hw(x)  local_irq_enable(x)
  29 #define local_irq_disable_hw(x) local_irq_disable(x)
  30 #define irqs_disabled_hw(x)     irqs_disabled(x)
  31
  32 #if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
  33 # define NOP_PAD_ANOMALY_05000244 "nop; nop;"
  34 #else
  35 # define NOP_PAD_ANOMALY_05000244
  36 #endif
  37
  38 #define idle_with_irq_disabled() \
  39         __asm__ __volatile__( \
  40                 NOP_PAD_ANOMALY_05000244 \
  41                 ".align 8;" \
  42                 "sti %0;" \
  43                 "idle;" \
  44                 : \
  45                 : "d" (bfin_irq_flags) \
  46         )
  47
  48 static inline int irq_canonicalize(int irq)
  49 {
  50         return irq;
  51 }
  52
  53 #endif                          /* _BFIN_IRQ_H_ */