root/drivers/ntb/hw/intel/ntb_hw_gen1.h

INCLUDED FROM

   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) 2012-2017 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) 2012-2017 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 
  44 #ifndef _NTB_INTEL_GEN1_H_
  45 #define _NTB_INTEL_GEN1_H_
  46 
  47 #include "ntb_hw_intel.h"
  48 
  49 /* Intel Gen1 Xeon hardware */
  50 #define XEON_PBAR23LMT_OFFSET           0x0000
  51 #define XEON_PBAR45LMT_OFFSET           0x0008
  52 #define XEON_PBAR4LMT_OFFSET            0x0008
  53 #define XEON_PBAR5LMT_OFFSET            0x000c
  54 #define XEON_PBAR23XLAT_OFFSET          0x0010
  55 #define XEON_PBAR45XLAT_OFFSET          0x0018
  56 #define XEON_PBAR4XLAT_OFFSET           0x0018
  57 #define XEON_PBAR5XLAT_OFFSET           0x001c
  58 #define XEON_SBAR23LMT_OFFSET           0x0020
  59 #define XEON_SBAR45LMT_OFFSET           0x0028
  60 #define XEON_SBAR4LMT_OFFSET            0x0028
  61 #define XEON_SBAR5LMT_OFFSET            0x002c
  62 #define XEON_SBAR23XLAT_OFFSET          0x0030
  63 #define XEON_SBAR45XLAT_OFFSET          0x0038
  64 #define XEON_SBAR4XLAT_OFFSET           0x0038
  65 #define XEON_SBAR5XLAT_OFFSET           0x003c
  66 #define XEON_SBAR0BASE_OFFSET           0x0040
  67 #define XEON_SBAR23BASE_OFFSET          0x0048
  68 #define XEON_SBAR45BASE_OFFSET          0x0050
  69 #define XEON_SBAR4BASE_OFFSET           0x0050
  70 #define XEON_SBAR5BASE_OFFSET           0x0054
  71 #define XEON_SBDF_OFFSET                0x005c
  72 #define XEON_NTBCNTL_OFFSET             0x0058
  73 #define XEON_PDOORBELL_OFFSET           0x0060
  74 #define XEON_PDBMSK_OFFSET              0x0062
  75 #define XEON_SDOORBELL_OFFSET           0x0064
  76 #define XEON_SDBMSK_OFFSET              0x0066
  77 #define XEON_USMEMMISS_OFFSET           0x0070
  78 #define XEON_SPAD_OFFSET                0x0080
  79 #define XEON_PBAR23SZ_OFFSET            0x00d0
  80 #define XEON_PBAR45SZ_OFFSET            0x00d1
  81 #define XEON_PBAR4SZ_OFFSET             0x00d1
  82 #define XEON_SBAR23SZ_OFFSET            0x00d2
  83 #define XEON_SBAR45SZ_OFFSET            0x00d3
  84 #define XEON_SBAR4SZ_OFFSET             0x00d3
  85 #define XEON_PPD_OFFSET                 0x00d4
  86 #define XEON_PBAR5SZ_OFFSET             0x00d5
  87 #define XEON_SBAR5SZ_OFFSET             0x00d6
  88 #define XEON_WCCNTRL_OFFSET             0x00e0
  89 #define XEON_UNCERRSTS_OFFSET           0x014c
  90 #define XEON_CORERRSTS_OFFSET           0x0158
  91 #define XEON_LINK_STATUS_OFFSET         0x01a2
  92 #define XEON_SPCICMD_OFFSET             0x0504
  93 #define XEON_DEVCTRL_OFFSET             0x0598
  94 #define XEON_DEVSTS_OFFSET              0x059a
  95 #define XEON_SLINK_STATUS_OFFSET        0x05a2
  96 #define XEON_B2B_SPAD_OFFSET            0x0100
  97 #define XEON_B2B_DOORBELL_OFFSET        0x0140
  98 #define XEON_B2B_XLAT_OFFSETL           0x0144
  99 #define XEON_B2B_XLAT_OFFSETU           0x0148
 100 #define XEON_PPD_CONN_MASK              0x03
 101 #define XEON_PPD_CONN_TRANSPARENT       0x00
 102 #define XEON_PPD_CONN_B2B               0x01
 103 #define XEON_PPD_CONN_RP                0x02
 104 #define XEON_PPD_DEV_MASK               0x10
 105 #define XEON_PPD_DEV_USD                0x00
 106 #define XEON_PPD_DEV_DSD                0x10
 107 #define XEON_PPD_SPLIT_BAR_MASK         0x40
 108 
 109 #define XEON_PPD_TOPO_MASK      (XEON_PPD_CONN_MASK | XEON_PPD_DEV_MASK)
 110 #define XEON_PPD_TOPO_PRI_USD   (XEON_PPD_CONN_RP | XEON_PPD_DEV_USD)
 111 #define XEON_PPD_TOPO_PRI_DSD   (XEON_PPD_CONN_RP | XEON_PPD_DEV_DSD)
 112 #define XEON_PPD_TOPO_SEC_USD   (XEON_PPD_CONN_TRANSPARENT | XEON_PPD_DEV_USD)
 113 #define XEON_PPD_TOPO_SEC_DSD   (XEON_PPD_CONN_TRANSPARENT | XEON_PPD_DEV_DSD)
 114 #define XEON_PPD_TOPO_B2B_USD   (XEON_PPD_CONN_B2B | XEON_PPD_DEV_USD)
 115 #define XEON_PPD_TOPO_B2B_DSD   (XEON_PPD_CONN_B2B | XEON_PPD_DEV_DSD)
 116 
 117 #define XEON_MW_COUNT                   2
 118 #define HSX_SPLIT_BAR_MW_COUNT          3
 119 #define XEON_DB_COUNT                   15
 120 #define XEON_DB_LINK                    15
 121 #define XEON_DB_LINK_BIT                        BIT_ULL(XEON_DB_LINK)
 122 #define XEON_DB_MSIX_VECTOR_COUNT       4
 123 #define XEON_DB_MSIX_VECTOR_SHIFT       5
 124 #define XEON_DB_TOTAL_SHIFT             16
 125 #define XEON_SPAD_COUNT                 16
 126 
 127 /* Use the following addresses for translation between b2b ntb devices in case
 128  * the hardware default values are not reliable. */
 129 #define XEON_B2B_BAR0_ADDR      0x1000000000000000ull
 130 #define XEON_B2B_BAR2_ADDR64    0x2000000000000000ull
 131 #define XEON_B2B_BAR4_ADDR64    0x4000000000000000ull
 132 #define XEON_B2B_BAR4_ADDR32    0x20000000u
 133 #define XEON_B2B_BAR5_ADDR32    0x40000000u
 134 
 135 /* The peer ntb secondary config space is 32KB fixed size */
 136 #define XEON_B2B_MIN_SIZE               0x8000
 137 
 138 /* flags to indicate hardware errata */
 139 #define NTB_HWERR_SDOORBELL_LOCKUP      BIT_ULL(0)
 140 #define NTB_HWERR_SB01BASE_LOCKUP       BIT_ULL(1)
 141 #define NTB_HWERR_B2BDOORBELL_BIT14     BIT_ULL(2)
 142 #define NTB_HWERR_MSIX_VECTOR32_BAD     BIT_ULL(3)
 143 
 144 extern struct intel_b2b_addr xeon_b2b_usd_addr;
 145 extern struct intel_b2b_addr xeon_b2b_dsd_addr;
 146 
 147 int ndev_init_isr(struct intel_ntb_dev *ndev, int msix_min, int msix_max,
 148                 int msix_shift, int total_shift);
 149 enum ntb_topo xeon_ppd_topo(struct intel_ntb_dev *ndev, u8 ppd);
 150 void ndev_db_addr(struct intel_ntb_dev *ndev,
 151                                 phys_addr_t *db_addr, resource_size_t *db_size,
 152                                 phys_addr_t reg_addr, unsigned long reg);
 153 u64 ndev_db_read(struct intel_ntb_dev *ndev, void __iomem *mmio);
 154 int ndev_db_write(struct intel_ntb_dev *ndev, u64 db_bits,
 155                                 void __iomem *mmio);
 156 int ndev_mw_to_bar(struct intel_ntb_dev *ndev, int idx);
 157 int intel_ntb_mw_count(struct ntb_dev *ntb, int pidx);
 158 int intel_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx,
 159                 resource_size_t *addr_align, resource_size_t *size_align,
 160                 resource_size_t *size_max);
 161 int intel_ntb_peer_mw_count(struct ntb_dev *ntb);
 162 int intel_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx,
 163                 phys_addr_t *base, resource_size_t *size);
 164 u64 intel_ntb_link_is_up(struct ntb_dev *ntb, enum ntb_speed *speed,
 165                 enum ntb_width *width);
 166 int intel_ntb_link_disable(struct ntb_dev *ntb);
 167 u64 intel_ntb_db_valid_mask(struct ntb_dev *ntb);
 168 int intel_ntb_db_vector_count(struct ntb_dev *ntb);
 169 u64 intel_ntb_db_vector_mask(struct ntb_dev *ntb, int db_vector);
 170 int intel_ntb_db_set_mask(struct ntb_dev *ntb, u64 db_bits);
 171 int intel_ntb_db_clear_mask(struct ntb_dev *ntb, u64 db_bits);
 172 int intel_ntb_spad_is_unsafe(struct ntb_dev *ntb);
 173 int intel_ntb_spad_count(struct ntb_dev *ntb);
 174 u32 intel_ntb_spad_read(struct ntb_dev *ntb, int idx);
 175 int intel_ntb_spad_write(struct ntb_dev *ntb, int idx, u32 val);
 176 u32 intel_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx);
 177 int intel_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx, int sidx,
 178                 u32 val);
 179 int intel_ntb_peer_spad_addr(struct ntb_dev *ntb, int pidx, int sidx,
 180                                     phys_addr_t *spad_addr);
 181 int xeon_link_is_up(struct intel_ntb_dev *ndev);
 182 
 183 #endif