arch/powerpc/sysdev/fsl_msi.h

   1 /*
   2  * Copyright (C) 2007-2008 Freescale Semiconductor, Inc. All rights reserved.
   3  *
   4  * Author: Tony Li <tony.li@freescale.com>
   5  *         Jason Jin <Jason.jin@freescale.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; version 2 of the
  10  * License.
  11  *
  12  */
  13 #ifndef _POWERPC_SYSDEV_FSL_MSI_H
  14 #define _POWERPC_SYSDEV_FSL_MSI_H
  15
  16 #define NR_MSI_REG              8
  17 #define IRQS_PER_MSI_REG        32
  18 #define NR_MSI_IRQS     (NR_MSI_REG * IRQS_PER_MSI_REG)
  19
  20 #define FSL_PIC_IP_MASK 0x0000000F
  21 #define FSL_PIC_IP_MPIC 0x00000001
  22 #define FSL_PIC_IP_IPIC 0x00000002
  23
  24 struct fsl_msi {
  25         /* Device node of the MSI interrupt*/
  26         struct device_node *of_node;
  27
  28         struct irq_host *irqhost;
  29
  30         unsigned long cascade_irq;
  31
  32         u32 msi_addr_lo;
  33         u32 msi_addr_hi;
  34         void __iomem *msi_regs;
  35         u32 feature;
  36
  37         unsigned long *fsl_msi_bitmap;
  38         spinlock_t bitmap_lock;
  39 };
  40
  41 #endif /* _POWERPC_SYSDEV_FSL_MSI_H */
  42