drivers/pci/hotplug/pciehprm_nonacpi.h

   1 /*
   2  * PCIEHPRM NONACPI: PHP Resource Manager for Non-ACPI/Legacy platform
   3  *
   4  * Copyright (C) 1995,2001 Compaq Computer Corporation
   5  * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
   6  * Copyright (C) 2001 IBM Corp.
   7  * Copyright (C) 2003-2004 Intel Corporation
   8  *
   9  * All rights reserved.
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or (at
  14  * your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  19  * NON INFRINGEMENT.  See the GNU General Public License for more
  20  * details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com>
  27  *
  28  */
  29
  30 #ifndef _PCIEHPRM_NONACPI_H_
  31 #define _PCIEHPRM_NONACPI_H_
  32
  33 struct irq_info {
  34         u8 bus, devfn;          /* bus, device and function */
  35         struct {
  36                 u8 link;        /* IRQ line ID, chipset dependent, 0=not routed */
  37                 u16 bitmap;     /* Available IRQs */
  38         } __attribute__ ((packed)) irq[4];
  39         u8 slot;                /* slot number, 0=onboard */
  40         u8 rfu;
  41 } __attribute__ ((packed));
  42
  43 struct irq_routing_table {
  44         u32 signature;          /* PIRQ_SIGNATURE should be here */
  45         u16 version;            /* PIRQ_VERSION */
  46         u16 size;                       /* Table size in bytes */
  47         u8 rtr_bus, rtr_devfn;  /* Where the interrupt router lies */
  48         u16 exclusive_irqs;     /* IRQs devoted exclusively to PCI usage */
  49         u16 rtr_vendor, rtr_device;     /* Vendor and device ID of interrupt router */
  50         u32 miniport_data;      /* Crap */
  51         u8 rfu[11];
  52         u8 checksum;            /* Modulo 256 checksum must give zero */
  53         struct irq_info slots[0];
  54 } __attribute__ ((packed));
  55
  56 #endif                          /* _PCIEHPRM_NONACPI_H_ */