1/*
  2 * This file is provided under a dual BSD/GPLv2 license.  When using or
  3 *   redistributing this file, you may do so under either license.
  4 *
  5 *   GPL LICENSE SUMMARY
  6 *
  7 *   Copyright(c) 2012 Intel Corporation. All rights reserved.
  8 *
  9 *   This program is free software; you can redistribute it and/or modify
 10 *   it under the terms of version 2 of the GNU General Public License as
 11 *   published by the Free Software Foundation.
 12 *
 13 *   BSD LICENSE
 14 *
 15 *   Copyright(c) 2012 Intel Corporation. All rights reserved.
 16 *
 17 *   Redistribution and use in source and binary forms, with or without
 18 *   modification, are permitted provided that the following conditions
 19 *   are met:
 20 *
 21 *     * Redistributions of source code must retain the above copyright
 22 *       notice, this list of conditions and the following disclaimer.
 23 *     * Redistributions in binary form must reproduce the above copy
 24 *       notice, this list of conditions and the following disclaimer in
 25 *       the documentation and/or other materials provided with the
 26 *       distribution.
 27 *     * Neither the name of Intel Corporation nor the names of its
 28 *       contributors may be used to endorse or promote products derived
 29 *       from this software without specific prior written permission.
 30 *
 31 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 32 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 33 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 34 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 35 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 36 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 37 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 38 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 39 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 40 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 41 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 42 *
 43 * Intel PCIe NTB Linux driver
 44 *
 45 * Contact Information:
 46 * Jon Mason <jon.mason@intel.com>
 47 */
 48
 49#define NTB_LINK_STATUS_ACTIVE	0x2000
 50#define NTB_LINK_SPEED_MASK	0x000f
 51#define NTB_LINK_WIDTH_MASK	0x03f0
 52
 53#define SNB_MSIX_CNT		4
 54#define SNB_MAX_B2B_SPADS	16
 55#define SNB_MAX_COMPAT_SPADS	16
 56/* Reserve the uppermost bit for link interrupt */
 57#define SNB_MAX_DB_BITS		15
 58#define SNB_LINK_DB		15
 59#define SNB_DB_BITS_PER_VEC	5
 60#define SNB_MAX_MW		2
 61#define SNB_ERRATA_MAX_MW	1
 62
 63#define SNB_DB_HW_LINK		0x8000
 64
 65#define SNB_PCICMD_OFFSET	0x0504
 66#define SNB_DEVCTRL_OFFSET	0x0598
 67#define SNB_SLINK_STATUS_OFFSET	0x05A2
 68#define SNB_LINK_STATUS_OFFSET	0x01A2
 69
 70#define SNB_PBAR2LMT_OFFSET	0x0000
 71#define SNB_PBAR4LMT_OFFSET	0x0008
 72#define SNB_PBAR2XLAT_OFFSET	0x0010
 73#define SNB_PBAR4XLAT_OFFSET	0x0018
 74#define SNB_SBAR2LMT_OFFSET	0x0020
 75#define SNB_SBAR4LMT_OFFSET	0x0028
 76#define SNB_SBAR2XLAT_OFFSET	0x0030
 77#define SNB_SBAR4XLAT_OFFSET	0x0038
 78#define SNB_SBAR0BASE_OFFSET	0x0040
 79#define SNB_SBAR2BASE_OFFSET	0x0048
 80#define SNB_SBAR4BASE_OFFSET	0x0050
 81#define SNB_NTBCNTL_OFFSET	0x0058
 82#define SNB_SBDF_OFFSET		0x005C
 83#define SNB_PDOORBELL_OFFSET	0x0060
 84#define SNB_PDBMSK_OFFSET	0x0062
 85#define SNB_SDOORBELL_OFFSET	0x0064
 86#define SNB_SDBMSK_OFFSET	0x0066
 87#define SNB_USMEMMISS		0x0070
 88#define SNB_SPAD_OFFSET		0x0080
 89#define SNB_SPADSEMA4_OFFSET	0x00c0
 90#define SNB_WCCNTRL_OFFSET	0x00e0
 91#define SNB_B2B_SPAD_OFFSET	0x0100
 92#define SNB_B2B_DOORBELL_OFFSET	0x0140
 93#define SNB_B2B_XLAT_OFFSETL	0x0144
 94#define SNB_B2B_XLAT_OFFSETU	0x0148
 95
 96#define SNB_MBAR01_USD_ADDR	0x000000210000000CULL
 97#define SNB_MBAR23_USD_ADDR	0x000000410000000CULL
 98#define SNB_MBAR45_USD_ADDR	0x000000810000000CULL
 99#define SNB_MBAR01_DSD_ADDR	0x000000200000000CULL
100#define SNB_MBAR23_DSD_ADDR	0x000000400000000CULL
101#define SNB_MBAR45_DSD_ADDR	0x000000800000000CULL
102
103#define BWD_MSIX_CNT		34
104#define BWD_MAX_SPADS		16
105#define BWD_MAX_DB_BITS		34
106#define BWD_DB_BITS_PER_VEC	1
107#define BWD_MAX_MW		2
108
109#define BWD_PCICMD_OFFSET	0xb004
110#define BWD_MBAR23_OFFSET	0xb018
111#define BWD_MBAR45_OFFSET	0xb020
112#define BWD_DEVCTRL_OFFSET	0xb048
113#define BWD_LINK_STATUS_OFFSET	0xb052
114#define BWD_ERRCORSTS_OFFSET	0xb110
115
116#define BWD_SBAR2XLAT_OFFSET	0x0008
117#define BWD_SBAR4XLAT_OFFSET	0x0010
118#define BWD_PDOORBELL_OFFSET	0x0020
119#define BWD_PDBMSK_OFFSET	0x0028
120#define BWD_NTBCNTL_OFFSET	0x0060
121#define BWD_EBDF_OFFSET		0x0064
122#define BWD_SPAD_OFFSET		0x0080
123#define BWD_SPADSEMA_OFFSET	0x00c0
124#define BWD_STKYSPAD_OFFSET	0x00c4
125#define BWD_PBAR2XLAT_OFFSET	0x8008
126#define BWD_PBAR4XLAT_OFFSET	0x8010
127#define BWD_B2B_DOORBELL_OFFSET	0x8020
128#define BWD_B2B_SPAD_OFFSET	0x8080
129#define BWD_B2B_SPADSEMA_OFFSET	0x80c0
130#define BWD_B2B_STKYSPAD_OFFSET	0x80c4
131
132#define BWD_MODPHY_PCSREG4	0x1c004
133#define BWD_MODPHY_PCSREG6	0x1c006
134
135#define BWD_IP_BASE		0xC000
136#define BWD_DESKEWSTS_OFFSET	(BWD_IP_BASE + 0x3024)
137#define BWD_LTSSMERRSTS0_OFFSET (BWD_IP_BASE + 0x3180)
138#define BWD_LTSSMSTATEJMP_OFFSET	(BWD_IP_BASE + 0x3040)
139#define BWD_IBSTERRRCRVSTS0_OFFSET	(BWD_IP_BASE + 0x3324)
140
141#define BWD_DESKEWSTS_DBERR	(1 << 15)
142#define BWD_LTSSMERRSTS0_UNEXPECTEDEI	(1 << 20)
143#define BWD_LTSSMSTATEJMP_FORCEDETECT	(1 << 2)
144#define BWD_IBIST_ERR_OFLOW	0x7FFF7FFF
145
146#define NTB_CNTL_CFG_LOCK		(1 << 0)
147#define NTB_CNTL_LINK_DISABLE		(1 << 1)
148#define NTB_CNTL_S2P_BAR23_SNOOP	(1 << 2)
149#define NTB_CNTL_P2S_BAR23_SNOOP	(1 << 4)
150#define NTB_CNTL_S2P_BAR45_SNOOP	(1 << 6)
151#define NTB_CNTL_P2S_BAR45_SNOOP	(1 << 8)
152#define BWD_CNTL_LINK_DOWN		(1 << 16)
153
154#define NTB_PPD_OFFSET		0x00D4
155#define SNB_PPD_CONN_TYPE	0x0003
156#define SNB_PPD_DEV_TYPE	0x0010
157#define BWD_PPD_INIT_LINK	0x0008
158#define BWD_PPD_CONN_TYPE	0x0300
159#define BWD_PPD_DEV_TYPE	0x1000