drivers/dma/ioatdma_registers.h

   1 /*
   2  * Copyright(c) 2004 - 2007 Intel Corporation. All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the Free
   6  * Software Foundation; either version 2 of the License, or (at your option)
   7  * any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 59
  16  * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called COPYING.
  20  */
  21 #ifndef _IOAT_REGISTERS_H_
  22 #define _IOAT_REGISTERS_H_
  23
  24 #define IOAT_PCI_DMACTRL_OFFSET                 0x48
  25 #define IOAT_PCI_DMACTRL_DMA_EN                 0x00000001
  26 #define IOAT_PCI_DMACTRL_MSI_EN                 0x00000002
  27
  28 /* MMIO Device Registers */
  29 #define IOAT_CHANCNT_OFFSET                     0x00    /*  8-bit */
  30
  31 #define IOAT_XFERCAP_OFFSET                     0x01    /*  8-bit */
  32 #define IOAT_XFERCAP_4KB                        12
  33 #define IOAT_XFERCAP_8KB                        13
  34 #define IOAT_XFERCAP_16KB                       14
  35 #define IOAT_XFERCAP_32KB                       15
  36 #define IOAT_XFERCAP_32GB                       0
  37
  38 #define IOAT_GENCTRL_OFFSET                     0x02    /*  8-bit */
  39 #define IOAT_GENCTRL_DEBUG_EN                   0x01
  40
  41 #define IOAT_INTRCTRL_OFFSET                    0x03    /*  8-bit */
  42 #define IOAT_INTRCTRL_MASTER_INT_EN             0x01    /* Master Interrupt Enable */
  43 #define IOAT_INTRCTRL_INT_STATUS                0x02    /* ATTNSTATUS -or- Channel Int */
  44 #define IOAT_INTRCTRL_INT                       0x04    /* INT_STATUS -and- MASTER_INT_EN */
  45 #define IOAT_INTRCTRL_MSIX_VECTOR_CONTROL       0x08    /* Enable all MSI-X vectors */
  46
  47 #define IOAT_ATTNSTATUS_OFFSET                  0x04    /* Each bit is a channel */
  48
  49 #define IOAT_VER_OFFSET                         0x08    /*  8-bit */
  50 #define IOAT_VER_MAJOR_MASK                     0xF0
  51 #define IOAT_VER_MINOR_MASK                     0x0F
  52 #define GET_IOAT_VER_MAJOR(x)                   (((x) & IOAT_VER_MAJOR_MASK) >> 4)
  53 #define GET_IOAT_VER_MINOR(x)                   ((x) & IOAT_VER_MINOR_MASK)
  54
  55 #define IOAT_PERPORTOFFSET_OFFSET               0x0A    /* 16-bit */
  56
  57 #define IOAT_INTRDELAY_OFFSET                   0x0C    /* 16-bit */
  58 #define IOAT_INTRDELAY_INT_DELAY_MASK           0x3FFF  /* Interrupt Delay Time */
  59 #define IOAT_INTRDELAY_COALESE_SUPPORT          0x8000  /* Interrupt Coalescing Supported */
  60
  61 #define IOAT_DEVICE_STATUS_OFFSET               0x0E    /* 16-bit */
  62 #define IOAT_DEVICE_STATUS_DEGRADED_MODE        0x0001
  63
  64 #define IOAT_CHANNEL_MMIO_SIZE                  0x80    /* Each Channel MMIO space is this size */
  65
  66 /* DMA Channel Registers */
  67 #define IOAT_CHANCTRL_OFFSET                    0x00    /* 16-bit Channel Control Register */
  68 #define IOAT_CHANCTRL_CHANNEL_PRIORITY_MASK     0xF000
  69 #define IOAT_CHANCTRL_CHANNEL_IN_USE            0x0100
  70 #define IOAT_CHANCTRL_DESCRIPTOR_ADDR_SNOOP_CONTROL     0x0020
  71 #define IOAT_CHANCTRL_ERR_INT_EN                0x0010
  72 #define IOAT_CHANCTRL_ANY_ERR_ABORT_EN          0x0008
  73 #define IOAT_CHANCTRL_ERR_COMPLETION_EN         0x0004
  74 #define IOAT_CHANCTRL_INT_DISABLE               0x0001
  75
  76 #define IOAT_DMA_COMP_OFFSET                    0x02    /* 16-bit DMA channel compatibility */
  77 #define IOAT_DMA_COMP_V1                        0x0001  /* Compatibility with DMA version 1 */
  78 #define IOAT_DMA_COMP_V2                        0x0002  /* Compatibility with DMA version 2 */
  79
  80
  81 #define IOAT1_CHANSTS_OFFSET            0x04    /* 64-bit Channel Status Register */
  82 #define IOAT2_CHANSTS_OFFSET            0x08    /* 64-bit Channel Status Register */
  83 #define IOAT_CHANSTS_OFFSET(ver)                ((ver) < IOAT_VER_2_0 \
  84                                                 ? IOAT1_CHANSTS_OFFSET : IOAT2_CHANSTS_OFFSET)
  85 #define IOAT1_CHANSTS_OFFSET_LOW        0x04
  86 #define IOAT2_CHANSTS_OFFSET_LOW        0x08
  87 #define IOAT_CHANSTS_OFFSET_LOW(ver)            ((ver) < IOAT_VER_2_0 \
  88                                                 ? IOAT1_CHANSTS_OFFSET_LOW : IOAT2_CHANSTS_OFFSET_LOW)
  89 #define IOAT1_CHANSTS_OFFSET_HIGH       0x08
  90 #define IOAT2_CHANSTS_OFFSET_HIGH       0x0C
  91 #define IOAT_CHANSTS_OFFSET_HIGH(ver)           ((ver) < IOAT_VER_2_0 \
  92                                                 ? IOAT1_CHANSTS_OFFSET_HIGH : IOAT2_CHANSTS_OFFSET_HIGH)
  93 #define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR  ~0x3F
  94 #define IOAT_CHANSTS_SOFT_ERR                   0x0000000000000010
  95 #define IOAT_CHANSTS_UNAFFILIATED_ERR           0x0000000000000008
  96 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS        0x0000000000000007
  97 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS_ACTIVE 0x0
  98 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS_DONE   0x1
  99 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS_SUSPENDED      0x2
 100 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS_HALTED 0x3
 101
 102
 103
 104 #define IOAT_CHAN_DMACOUNT_OFFSET       0x06    /* 16-bit DMA Count register */
 105
 106 #define IOAT_DCACTRL_OFFSET         0x30   /* 32 bit Direct Cache Access Control Register */
 107 #define IOAT_DCACTRL_CMPL_WRITE_ENABLE 0x10000
 108 #define IOAT_DCACTRL_TARGET_CPU_MASK   0xFFFF /* APIC ID */
 109
 110 /* CB DCA Memory Space Registers */
 111 #define IOAT_DCAOFFSET_OFFSET       0x14
 112 /* CB_BAR + IOAT_DCAOFFSET value */
 113 #define IOAT_DCA_VER_OFFSET         0x00
 114 #define IOAT_DCA_VER_MAJOR_MASK     0xF0
 115 #define IOAT_DCA_VER_MINOR_MASK     0x0F
 116
 117 #define IOAT_DCA_COMP_OFFSET        0x02
 118 #define IOAT_DCA_COMP_V1            0x1
 119
 120 #define IOAT_FSB_CAPABILITY_OFFSET  0x04
 121 #define IOAT_FSB_CAPABILITY_PREFETCH    0x1
 122
 123 #define IOAT_PCI_CAPABILITY_OFFSET  0x06
 124 #define IOAT_PCI_CAPABILITY_MEMWR   0x1
 125
 126 #define IOAT_FSB_CAP_ENABLE_OFFSET  0x08
 127 #define IOAT_FSB_CAP_ENABLE_PREFETCH    0x1
 128
 129 #define IOAT_PCI_CAP_ENABLE_OFFSET  0x0A
 130 #define IOAT_PCI_CAP_ENABLE_MEMWR   0x1
 131
 132 #define IOAT_APICID_TAG_MAP_OFFSET  0x0C
 133 #define IOAT_APICID_TAG_MAP_TAG0    0x0000000F
 134 #define IOAT_APICID_TAG_MAP_TAG0_SHIFT 0
 135 #define IOAT_APICID_TAG_MAP_TAG1    0x000000F0
 136 #define IOAT_APICID_TAG_MAP_TAG1_SHIFT 4
 137 #define IOAT_APICID_TAG_MAP_TAG2    0x00000F00
 138 #define IOAT_APICID_TAG_MAP_TAG2_SHIFT 8
 139 #define IOAT_APICID_TAG_MAP_TAG3    0x0000F000
 140 #define IOAT_APICID_TAG_MAP_TAG3_SHIFT 12
 141 #define IOAT_APICID_TAG_MAP_TAG4    0x000F0000
 142 #define IOAT_APICID_TAG_MAP_TAG4_SHIFT 16
 143 #define IOAT_APICID_TAG_CB2_VALID   0x8080808080
 144
 145 #define IOAT_DCA_GREQID_OFFSET      0x10
 146 #define IOAT_DCA_GREQID_SIZE        0x04
 147 #define IOAT_DCA_GREQID_MASK        0xFFFF
 148 #define IOAT_DCA_GREQID_IGNOREFUN   0x10000000
 149 #define IOAT_DCA_GREQID_VALID       0x20000000
 150 #define IOAT_DCA_GREQID_LASTID      0x80000000
 151
 152
 153
 154 #define IOAT1_CHAINADDR_OFFSET          0x0C    /* 64-bit Descriptor Chain Address Register */
 155 #define IOAT2_CHAINADDR_OFFSET          0x10    /* 64-bit Descriptor Chain Address Register */
 156 #define IOAT_CHAINADDR_OFFSET(ver)              ((ver) < IOAT_VER_2_0 \
 157                                                 ? IOAT1_CHAINADDR_OFFSET : IOAT2_CHAINADDR_OFFSET)
 158 #define IOAT1_CHAINADDR_OFFSET_LOW      0x0C
 159 #define IOAT2_CHAINADDR_OFFSET_LOW      0x10
 160 #define IOAT_CHAINADDR_OFFSET_LOW(ver)          ((ver) < IOAT_VER_2_0 \
 161                                                 ? IOAT1_CHAINADDR_OFFSET_LOW : IOAT2_CHAINADDR_OFFSET_LOW)
 162 #define IOAT1_CHAINADDR_OFFSET_HIGH     0x10
 163 #define IOAT2_CHAINADDR_OFFSET_HIGH     0x14
 164 #define IOAT_CHAINADDR_OFFSET_HIGH(ver)         ((ver) < IOAT_VER_2_0 \
 165                                                 ? IOAT1_CHAINADDR_OFFSET_HIGH : IOAT2_CHAINADDR_OFFSET_HIGH)
 166
 167 #define IOAT1_CHANCMD_OFFSET            0x14    /*  8-bit DMA Channel Command Register */
 168 #define IOAT2_CHANCMD_OFFSET            0x04    /*  8-bit DMA Channel Command Register */
 169 #define IOAT_CHANCMD_OFFSET(ver)                ((ver) < IOAT_VER_2_0 \
 170                                                 ? IOAT1_CHANCMD_OFFSET : IOAT2_CHANCMD_OFFSET)
 171 #define IOAT_CHANCMD_RESET                      0x20
 172 #define IOAT_CHANCMD_RESUME                     0x10
 173 #define IOAT_CHANCMD_ABORT                      0x08
 174 #define IOAT_CHANCMD_SUSPEND                    0x04
 175 #define IOAT_CHANCMD_APPEND                     0x02
 176 #define IOAT_CHANCMD_START                      0x01
 177
 178 #define IOAT_CHANCMP_OFFSET                     0x18    /* 64-bit Channel Completion Address Register */
 179 #define IOAT_CHANCMP_OFFSET_LOW                 0x18
 180 #define IOAT_CHANCMP_OFFSET_HIGH                0x1C
 181
 182 #define IOAT_CDAR_OFFSET                        0x20    /* 64-bit Current Descriptor Address Register */
 183 #define IOAT_CDAR_OFFSET_LOW                    0x20
 184 #define IOAT_CDAR_OFFSET_HIGH                   0x24
 185
 186 #define IOAT_CHANERR_OFFSET                     0x28    /* 32-bit Channel Error Register */
 187 #define IOAT_CHANERR_DMA_TRANSFER_SRC_ADDR_ERR  0x0001
 188 #define IOAT_CHANERR_DMA_TRANSFER_DEST_ADDR_ERR 0x0002
 189 #define IOAT_CHANERR_NEXT_DESCRIPTOR_ADDR_ERR   0x0004
 190 #define IOAT_CHANERR_NEXT_DESCRIPTOR_ALIGNMENT_ERR      0x0008
 191 #define IOAT_CHANERR_CHAIN_ADDR_VALUE_ERR       0x0010
 192 #define IOAT_CHANERR_CHANCMD_ERR                0x0020
 193 #define IOAT_CHANERR_CHIPSET_UNCORRECTABLE_DATA_INTEGRITY_ERR   0x0040
 194 #define IOAT_CHANERR_DMA_UNCORRECTABLE_DATA_INTEGRITY_ERR       0x0080
 195 #define IOAT_CHANERR_READ_DATA_ERR              0x0100
 196 #define IOAT_CHANERR_WRITE_DATA_ERR             0x0200
 197 #define IOAT_CHANERR_DESCRIPTOR_CONTROL_ERR     0x0400
 198 #define IOAT_CHANERR_DESCRIPTOR_LENGTH_ERR      0x0800
 199 #define IOAT_CHANERR_COMPLETION_ADDR_ERR        0x1000
 200 #define IOAT_CHANERR_INT_CONFIGURATION_ERR      0x2000
 201 #define IOAT_CHANERR_SOFT_ERR                   0x4000
 202 #define IOAT_CHANERR_UNAFFILIATED_ERR           0x8000
 203
 204 #define IOAT_CHANERR_MASK_OFFSET                0x2C    /* 32-bit Channel Error Register */
 205
 206 #endif /* _IOAT_REGISTERS_H_ */