edac: AMD8131 driver header file

Introduce AMD8131 EDAC driver header file, which adds register and bits
definitions for the PCI-X Bridge Controller on the AMD8131 HyperTransport
I/O Hub.

Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 119 insertions, 0 deletions

diff --git a/drivers/edac/amd8131_edac.h b/drivers/edac/amd8131_edac.h
new file mode 100644
index 000000000000..60e0d1c72dee
--- /dev/null
+++ b/drivers/edac/amd8131_edac.h
@@ -0,0 +1,119 @@
+/*
+ * amd8131_edac.h, EDAC defs for AMD8131 hypertransport chip
+ *
+ * Copyright (c) 2008 Wind River Systems, Inc.
+ *
+ * Authors:     Cao Qingtao <qingtao.cao@windriver.com>
+ *              Benjamin Walsh <benjamin.walsh@windriver.com>
+ *              Hu Yongqi <yongqi.hu@windriver.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _AMD8131_EDAC_H_
+#define _AMD8131_EDAC_H_
+
+#define DEVFN_PCIX_BRIDGE_NORTH_A       8
+#define DEVFN_PCIX_BRIDGE_NORTH_B       16
+#define DEVFN_PCIX_BRIDGE_SOUTH_A       24
+#define DEVFN_PCIX_BRIDGE_SOUTH_B       32
+
+/************************************************************
+ *      PCI-X Bridge Status and Command Register, DevA:0x04
+ ************************************************************/
+#define REG_STS_CMD     0x04
+enum sts_cmd_bits {
+        STS_CMD_SSE     = BIT(30),
+        STS_CMD_SERREN  = BIT(8)
+};
+
+/************************************************************
+ *      PCI-X Bridge Interrupt and Bridge Control Register,
+ ************************************************************/
+#define REG_INT_CTLR    0x3c
+enum int_ctlr_bits {
+        INT_CTLR_DTSE   = BIT(27),
+        INT_CTLR_DTS    = BIT(26),
+        INT_CTLR_SERR   = BIT(17),
+        INT_CTLR_PERR   = BIT(16)
+};
+
+/************************************************************
+ *      PCI-X Bridge Memory Base-Limit Register, DevA:0x1C
+ ************************************************************/
+#define REG_MEM_LIM     0x1c
+enum mem_limit_bits {
+        MEM_LIMIT_DPE   = BIT(31),
+        MEM_LIMIT_RSE   = BIT(30),
+        MEM_LIMIT_RMA   = BIT(29),
+        MEM_LIMIT_RTA   = BIT(28),
+        MEM_LIMIT_STA   = BIT(27),
+        MEM_LIMIT_MDPE  = BIT(24),
+        MEM_LIMIT_MASK  = MEM_LIMIT_DPE|MEM_LIMIT_RSE|MEM_LIMIT_RMA|
+                                MEM_LIMIT_RTA|MEM_LIMIT_STA|MEM_LIMIT_MDPE
+};
+
+/************************************************************
+ *      Link Configuration And Control Register, side A
+ ************************************************************/
+#define REG_LNK_CTRL_A  0xc4
+
+/************************************************************
+ *      Link Configuration And Control Register, side B
+ ************************************************************/
+#define REG_LNK_CTRL_B  0xc8
+
+enum lnk_ctrl_bits {
+        LNK_CTRL_CRCERR_A       = BIT(9),
+        LNK_CTRL_CRCERR_B       = BIT(8),
+        LNK_CTRL_CRCFEN         = BIT(1)
+};
+
+enum pcix_bridge_inst {
+        NORTH_A = 0,
+        NORTH_B = 1,
+        SOUTH_A = 2,
+        SOUTH_B = 3,
+        NO_BRIDGE = 4
+};
+
+struct amd8131_dev_info {
+        int devfn;
+        enum pcix_bridge_inst inst;
+        struct pci_dev *dev;
+        int edac_idx;   /* pci device index */
+        char *ctl_name;
+        struct edac_pci_ctl_info *edac_dev;
+};
+
+/*
+ * AMD8131 chipset has two pairs of PCIX Bridge and related IOAPIC
+ * Controler, and ATCA-6101 has two AMD8131 chipsets, so there are
+ * four PCIX Bridges on ATCA-6101 altogether.
+ *
+ * These PCIX Bridges share the same PCI Device ID and are all of
+ * Function Zero, they could be discrimated by their pci_dev->devfn.
+ * They share the same set of init/check/exit methods, and their
+ * private structures are collected in the devices[] array.
+ */
+struct amd8131_info {
+        u16 err_dev;    /* PCI Device ID for AMD8131 APIC*/
+        struct amd8131_dev_info *devices;
+        void (*init)(struct amd8131_dev_info *dev_info);
+        void (*exit)(struct amd8131_dev_info *dev_info);
+        void (*check)(struct edac_pci_ctl_info *edac_dev);
+};
+
+#endif /* _AMD8131_EDAC_H_ */
+