linux/drivers/edac/amd8131_edac.h
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   1/*
   2 * amd8131_edac.h, EDAC defs for AMD8131 hypertransport chip
   3 *
   4 * Copyright (c) 2008 Wind River Systems, Inc.
   5 *
   6 * Authors:     Cao Qingtao <qingtao.cao@windriver.com>
   7 *              Benjamin Walsh <benjamin.walsh@windriver.com>
   8 *              Hu Yongqi <yongqi.hu@windriver.com>
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17 * See the GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22 */
  23
  24#ifndef _AMD8131_EDAC_H_
  25#define _AMD8131_EDAC_H_
  26
  27#define DEVFN_PCIX_BRIDGE_NORTH_A       8
  28#define DEVFN_PCIX_BRIDGE_NORTH_B       16
  29#define DEVFN_PCIX_BRIDGE_SOUTH_A       24
  30#define DEVFN_PCIX_BRIDGE_SOUTH_B       32
  31
  32/************************************************************
  33 *      PCI-X Bridge Status and Command Register, DevA:0x04
  34 ************************************************************/
  35#define REG_STS_CMD     0x04
  36enum sts_cmd_bits {
  37        STS_CMD_SSE     = BIT(30),
  38        STS_CMD_SERREN  = BIT(8)
  39};
  40
  41/************************************************************
  42 *      PCI-X Bridge Interrupt and Bridge Control Register,
  43 ************************************************************/
  44#define REG_INT_CTLR    0x3c
  45enum int_ctlr_bits {
  46        INT_CTLR_DTSE   = BIT(27),
  47        INT_CTLR_DTS    = BIT(26),
  48        INT_CTLR_SERR   = BIT(17),
  49        INT_CTLR_PERR   = BIT(16)
  50};
  51
  52/************************************************************
  53 *      PCI-X Bridge Memory Base-Limit Register, DevA:0x1C
  54 ************************************************************/
  55#define REG_MEM_LIM     0x1c
  56enum mem_limit_bits {
  57        MEM_LIMIT_DPE   = BIT(31),
  58        MEM_LIMIT_RSE   = BIT(30),
  59        MEM_LIMIT_RMA   = BIT(29),
  60        MEM_LIMIT_RTA   = BIT(28),
  61        MEM_LIMIT_STA   = BIT(27),
  62        MEM_LIMIT_MDPE  = BIT(24),
  63        MEM_LIMIT_MASK  = MEM_LIMIT_DPE|MEM_LIMIT_RSE|MEM_LIMIT_RMA|
  64                                MEM_LIMIT_RTA|MEM_LIMIT_STA|MEM_LIMIT_MDPE
  65};
  66
  67/************************************************************
  68 *      Link Configuration And Control Register, side A
  69 ************************************************************/
  70#define REG_LNK_CTRL_A  0xc4
  71
  72/************************************************************
  73 *      Link Configuration And Control Register, side B
  74 ************************************************************/
  75#define REG_LNK_CTRL_B  0xc8
  76
  77enum lnk_ctrl_bits {
  78        LNK_CTRL_CRCERR_A       = BIT(9),
  79        LNK_CTRL_CRCERR_B       = BIT(8),
  80        LNK_CTRL_CRCFEN         = BIT(1)
  81};
  82
  83enum pcix_bridge_inst {
  84        NORTH_A = 0,
  85        NORTH_B = 1,
  86        SOUTH_A = 2,
  87        SOUTH_B = 3,
  88        NO_BRIDGE = 4
  89};
  90
  91struct amd8131_dev_info {
  92        int devfn;
  93        enum pcix_bridge_inst inst;
  94        struct pci_dev *dev;
  95        int edac_idx;   /* pci device index */
  96        char *ctl_name;
  97        struct edac_pci_ctl_info *edac_dev;
  98};
  99
 100/*
 101 * AMD8131 chipset has two pairs of PCIX Bridge and related IOAPIC
 102 * Controller, and ATCA-6101 has two AMD8131 chipsets, so there are
 103 * four PCIX Bridges on ATCA-6101 altogether.
 104 *
 105 * These PCIX Bridges share the same PCI Device ID and are all of
 106 * Function Zero, they could be discrimated by their pci_dev->devfn.
 107 * They share the same set of init/check/exit methods, and their
 108 * private structures are collected in the devices[] array.
 109 */
 110struct amd8131_info {
 111        u16 err_dev;    /* PCI Device ID for AMD8131 APIC*/
 112        struct amd8131_dev_info *devices;
 113        void (*init)(struct amd8131_dev_info *dev_info);
 114        void (*exit)(struct amd8131_dev_info *dev_info);
 115        void (*check)(struct edac_pci_ctl_info *edac_dev);
 116};
 117
 118#endif /* _AMD8131_EDAC_H_ */
 119
 120
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