git.oblomov.eu Git - linux-2.6/blob - include/asm-x86_64/rio.h

   1 /*
   2  * Derived from include/asm-i386/mach-summit/mach_mpparse.h
   3  *          and include/asm-i386/mach-default/bios_ebda.h
   4  *
   5  * Author: Laurent Vivier <Laurent.Vivier@bull.net>
   6  *
   7  */
   8
   9 #ifndef __ASM_RIO_H
  10 #define __ASM_RIO_H
  11
  12 #define RIO_TABLE_VERSION       3
  13
  14 struct rio_table_hdr {
  15         u8 version;      /* Version number of this data structure  */
  16         u8 num_scal_dev; /* # of Scalability devices               */
  17         u8 num_rio_dev;  /* # of RIO I/O devices                   */
  18 } __attribute__((packed));
  19
  20 struct scal_detail {
  21         u8 node_id;      /* Scalability Node ID                    */
  22         u32  CBAR;       /* Address of 1MB register space          */
  23         u8 port0node;    /* Node ID port connected to: 0xFF=None   */
  24         u8 port0port;    /* Port num port connected to: 0,1,2, or  */
  25                          /* 0xFF=None                              */
  26         u8 port1node;    /* Node ID port connected to: 0xFF = None */
  27         u8 port1port;    /* Port num port connected to: 0,1,2, or  */
  28                          /* 0xFF=None                              */
  29         u8 port2node;    /* Node ID port connected to: 0xFF = None */
  30         u8 port2port;    /* Port num port connected to: 0,1,2, or  */
  31                          /* 0xFF=None                              */
  32         u8 chassis_num;  /* 1 based Chassis number (1 = boot node) */
  33 } __attribute__((packed));
  34
  35 struct rio_detail {
  36         u8 node_id;      /* RIO Node ID                            */
  37         u32  BBAR;       /* Address of 1MB register space          */
  38         u8 type;         /* Type of device                         */
  39         u8 owner_id;     /* Node ID of Hurricane that owns this    */
  40                          /* node                                   */
  41         u8 port0node;    /* Node ID port connected to: 0xFF=None   */
  42         u8 port0port;    /* Port num port connected to: 0,1,2, or  */
  43                          /* 0xFF=None                              */
  44         u8 port1node;    /* Node ID port connected to: 0xFF=None   */
  45         u8 port1port;    /* Port num port connected to: 0,1,2, or  */
  46                          /* 0xFF=None                              */
  47         u8 first_slot;   /* Lowest slot number below this Calgary  */
  48         u8 status;       /* Bit 0 = 1 : the XAPIC is used          */
  49                          /*       = 0 : the XAPIC is not used, ie: */
  50                          /*            ints fwded to another XAPIC */
  51                          /*           Bits1:7 Reserved             */
  52         u8 WP_index;     /* instance index - lower ones have       */
  53                          /*     lower slot numbers/PCI bus numbers */
  54         u8 chassis_num;  /* 1 based Chassis number                 */
  55 } __attribute__((packed));
  56
  57 enum {
  58         HURR_SCALABILTY = 0,  /* Hurricane Scalability info */
  59         HURR_RIOIB      = 2,  /* Hurricane RIOIB info       */
  60         COMPAT_CALGARY  = 4,  /* Compatibility Calgary      */
  61         ALT_CALGARY     = 5,  /* Second Planar Calgary      */
  62 };
  63
  64 /*
  65  * there is a real-mode segmented pointer pointing to the
  66  * 4K EBDA area at 0x40E.
  67  */
  68
  69 static inline unsigned long get_bios_ebda(void)
  70 {
  71         unsigned long address= *(unsigned short *)phys_to_virt(0x40Eul);
  72         address <<= 4;
  73         return address;
  74 }
  75
  76 #endif /* __ASM_RIO_H */