LXR linux/arch/powerpc/sysdev/fsl

   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#include <linux/of.h>
  17#include <asm/msi_bitmap.h>
  18
  19#define NR_MSI_REG              8
  20#define IRQS_PER_MSI_REG        32
  21#define NR_MSI_IRQS     (NR_MSI_REG * IRQS_PER_MSI_REG)
  22
  23#define FSL_PIC_IP_MASK   0x0000000F
  24#define FSL_PIC_IP_MPIC   0x00000001
  25#define FSL_PIC_IP_IPIC   0x00000002
  26#define FSL_PIC_IP_VMPIC  0x00000003
  27
  28struct fsl_msi {
  29        struct irq_domain *irqhost;
  30
  31        unsigned long cascade_irq;
  32
  33        u32 msiir_offset; /* Offset of MSIIR, relative to start of CCSR */
  34        void __iomem *msi_regs;
  35        u32 feature;
  36        int msi_virqs[NR_MSI_REG];
  37
  38        struct msi_bitmap bitmap;
  39
  40        struct list_head list;          /* support multiple MSI banks */
  41
  42        phandle phandle;
  43};
  44
  45#endif /* _POWERPC_SYSDEV_FSL_MSI_H */
  46
  47