hw/ide/ahci.h

   1 /*
   2  * QEMU AHCI Emulation
   3  *
   4  * Copyright (c) 2010 qiaochong@loongson.cn
   5  * Copyright (c) 2010 Roland Elek <elek.roland@gmail.com>
   6  * Copyright (c) 2010 Sebastian Herbszt <herbszt@gmx.de>
   7  * Copyright (c) 2010 Alexander Graf <agraf@suse.de>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library 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.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  21  *
  22  */
  23
  24 #ifndef HW_IDE_AHCI_H
  25 #define HW_IDE_AHCI_H
  26
  27 #define AHCI_MEM_BAR_SIZE         0x1000
  28 #define AHCI_MAX_PORTS            32
  29 #define AHCI_MAX_SG               168 /* hardware max is 64K */
  30 #define AHCI_DMA_BOUNDARY         0xffffffff
  31 #define AHCI_USE_CLUSTERING       0
  32 #define AHCI_MAX_CMDS             32
  33 #define AHCI_CMD_SZ               32
  34 #define AHCI_CMD_SLOT_SZ          (AHCI_MAX_CMDS * AHCI_CMD_SZ)
  35 #define AHCI_RX_FIS_SZ            256
  36 #define AHCI_CMD_TBL_CDB          0x40
  37 #define AHCI_CMD_TBL_HDR_SZ       0x80
  38 #define AHCI_CMD_TBL_SZ           (AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16))
  39 #define AHCI_CMD_TBL_AR_SZ        (AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS)
  40 #define AHCI_PORT_PRIV_DMA_SZ     (AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ + \
  41                                    AHCI_RX_FIS_SZ)
  42
  43 #define AHCI_IRQ_ON_SG            (1 << 31)
  44 #define AHCI_CMD_ATAPI            (1 << 5)
  45 #define AHCI_CMD_WRITE            (1 << 6)
  46 #define AHCI_CMD_PREFETCH         (1 << 7)
  47 #define AHCI_CMD_RESET            (1 << 8)
  48 #define AHCI_CMD_CLR_BUSY         (1 << 10)
  49
  50 #define RX_FIS_D2H_REG            0x40 /* offset of D2H Register FIS data */
  51 #define RX_FIS_SDB                0x58 /* offset of SDB FIS data */
  52 #define RX_FIS_UNK                0x60 /* offset of Unknown FIS data */
  53
  54 /* global controller registers */
  55 #define HOST_CAP                  0x00 /* host capabilities */
  56 #define HOST_CTL                  0x04 /* global host control */
  57 #define HOST_IRQ_STAT             0x08 /* interrupt status */
  58 #define HOST_PORTS_IMPL           0x0c /* bitmap of implemented ports */
  59 #define HOST_VERSION              0x10 /* AHCI spec. version compliancy */
  60
  61 /* HOST_CTL bits */
  62 #define HOST_CTL_RESET            (1 << 0)  /* reset controller; self-clear */
  63 #define HOST_CTL_IRQ_EN           (1 << 1)  /* global IRQ enable */
  64 #define HOST_CTL_AHCI_EN          (1 << 31) /* AHCI enabled */
  65
  66 /* HOST_CAP bits */
  67 #define HOST_CAP_SSC              (1 << 14) /* Slumber capable */
  68 #define HOST_CAP_AHCI             (1 << 18) /* AHCI only */
  69 #define HOST_CAP_CLO              (1 << 24) /* Command List Override support */
  70 #define HOST_CAP_SSS              (1 << 27) /* Staggered Spin-up */
  71 #define HOST_CAP_NCQ              (1 << 30) /* Native Command Queueing */
  72 #define HOST_CAP_64               (1 << 31) /* PCI DAC (64-bit DMA) support */
  73
  74 /* registers for each SATA port */
  75 #define PORT_LST_ADDR             0x00 /* command list DMA addr */
  76 #define PORT_LST_ADDR_HI          0x04 /* command list DMA addr hi */
  77 #define PORT_FIS_ADDR             0x08 /* FIS rx buf addr */
  78 #define PORT_FIS_ADDR_HI          0x0c /* FIS rx buf addr hi */
  79 #define PORT_IRQ_STAT             0x10 /* interrupt status */
  80 #define PORT_IRQ_MASK             0x14 /* interrupt enable/disable mask */
  81 #define PORT_CMD                  0x18 /* port command */
  82 #define PORT_TFDATA               0x20 /* taskfile data */
  83 #define PORT_SIG                  0x24 /* device TF signature */
  84 #define PORT_SCR_STAT             0x28 /* SATA phy register: SStatus */
  85 #define PORT_SCR_CTL              0x2c /* SATA phy register: SControl */
  86 #define PORT_SCR_ERR              0x30 /* SATA phy register: SError */
  87 #define PORT_SCR_ACT              0x34 /* SATA phy register: SActive */
  88 #define PORT_CMD_ISSUE            0x38 /* command issue */
  89 #define PORT_RESERVED             0x3c /* reserved */
  90
  91 /* PORT_IRQ_{STAT,MASK} bits */
  92 #define PORT_IRQ_COLD_PRES        (1 << 31) /* cold presence detect */
  93 #define PORT_IRQ_TF_ERR           (1 << 30) /* task file error */
  94 #define PORT_IRQ_HBUS_ERR         (1 << 29) /* host bus fatal error */
  95 #define PORT_IRQ_HBUS_DATA_ERR    (1 << 28) /* host bus data error */
  96 #define PORT_IRQ_IF_ERR           (1 << 27) /* interface fatal error */
  97 #define PORT_IRQ_IF_NONFATAL      (1 << 26) /* interface non-fatal error */
  98 #define PORT_IRQ_OVERFLOW         (1 << 24) /* xfer exhausted available S/G */
  99 #define PORT_IRQ_BAD_PMP          (1 << 23) /* incorrect port multiplier */
 100
 101 #define PORT_IRQ_PHYRDY           (1 << 22) /* PhyRdy changed */
 102 #define PORT_IRQ_DEV_ILCK         (1 << 7) /* device interlock */
 103 #define PORT_IRQ_CONNECT          (1 << 6) /* port connect change status */
 104 #define PORT_IRQ_SG_DONE          (1 << 5) /* descriptor processed */
 105 #define PORT_IRQ_UNK_FIS          (1 << 4) /* unknown FIS rx'd */
 106 #define PORT_IRQ_SDB_FIS          (1 << 3) /* Set Device Bits FIS rx'd */
 107 #define PORT_IRQ_DMAS_FIS         (1 << 2) /* DMA Setup FIS rx'd */
 108 #define PORT_IRQ_PIOS_FIS         (1 << 1) /* PIO Setup FIS rx'd */
 109 #define PORT_IRQ_D2H_REG_FIS      (1 << 0) /* D2H Register FIS rx'd */
 110
 111 #define PORT_IRQ_FREEZE           (PORT_IRQ_HBUS_ERR | PORT_IRQ_IF_ERR |   \
 112                                    PORT_IRQ_CONNECT | PORT_IRQ_PHYRDY |    \
 113                                    PORT_IRQ_UNK_FIS)
 114 #define PORT_IRQ_ERROR            (PORT_IRQ_FREEZE | PORT_IRQ_TF_ERR |     \
 115                                    PORT_IRQ_HBUS_DATA_ERR)
 116 #define DEF_PORT_IRQ              (PORT_IRQ_ERROR | PORT_IRQ_SG_DONE |     \
 117                                    PORT_IRQ_SDB_FIS | PORT_IRQ_DMAS_FIS |  \
 118                                    PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS)
 119
 120 /* PORT_CMD bits */
 121 #define PORT_CMD_ATAPI            (1 << 24) /* Device is ATAPI */
 122 #define PORT_CMD_LIST_ON          (1 << 15) /* cmd list DMA engine running */
 123 #define PORT_CMD_FIS_ON           (1 << 14) /* FIS DMA engine running */
 124 #define PORT_CMD_FIS_RX           (1 << 4) /* Enable FIS receive DMA engine */
 125 #define PORT_CMD_CLO              (1 << 3) /* Command list override */
 126 #define PORT_CMD_POWER_ON         (1 << 2) /* Power up device */
 127 #define PORT_CMD_SPIN_UP          (1 << 1) /* Spin up device */
 128 #define PORT_CMD_START            (1 << 0) /* Enable port DMA engine */
 129
 130 #define PORT_CMD_ICC_MASK         (0xf << 28) /* i/f ICC state mask */
 131 #define PORT_CMD_ICC_ACTIVE       (0x1 << 28) /* Put i/f in active state */
 132 #define PORT_CMD_ICC_PARTIAL      (0x2 << 28) /* Put i/f in partial state */
 133 #define PORT_CMD_ICC_SLUMBER      (0x6 << 28) /* Put i/f in slumber state */
 134
 135 #define PORT_IRQ_STAT_DHRS        (1 << 0) /* Device to Host Register FIS */
 136 #define PORT_IRQ_STAT_PSS         (1 << 1) /* PIO Setup FIS */
 137 #define PORT_IRQ_STAT_DSS         (1 << 2) /* DMA Setup FIS */
 138 #define PORT_IRQ_STAT_SDBS        (1 << 3) /* Set Device Bits */
 139 #define PORT_IRQ_STAT_UFS         (1 << 4) /* Unknown FIS */
 140 #define PORT_IRQ_STAT_DPS         (1 << 5) /* Descriptor Processed */
 141 #define PORT_IRQ_STAT_PCS         (1 << 6) /* Port Connect Change Status */
 142 #define PORT_IRQ_STAT_DMPS        (1 << 7) /* Device Mechanical Presence
 143                                               Status */
 144 #define PORT_IRQ_STAT_PRCS        (1 << 22) /* File Ready Status */
 145 #define PORT_IRQ_STAT_IPMS        (1 << 23) /* Incorrect Port Multiplier
 146                                                Status */
 147 #define PORT_IRQ_STAT_OFS         (1 << 24) /* Overflow Status */
 148 #define PORT_IRQ_STAT_INFS        (1 << 26) /* Interface Non-Fatal Error
 149                                                Status */
 150 #define PORT_IRQ_STAT_IFS         (1 << 27) /* Interface Fatal Error */
 151 #define PORT_IRQ_STAT_HBDS        (1 << 28) /* Host Bus Data Error Status */
 152 #define PORT_IRQ_STAT_HBFS        (1 << 29) /* Host Bus Fatal Error Status */
 153 #define PORT_IRQ_STAT_TFES        (1 << 30) /* Task File Error Status */
 154 #define PORT_IRQ_STAT_CPDS        (1 << 31) /* Code Port Detect Status */
 155
 156 /* ap->flags bits */
 157 #define AHCI_FLAG_NO_NCQ                  (1 << 24)
 158 #define AHCI_FLAG_IGN_IRQ_IF_ERR          (1 << 25) /* ignore IRQ_IF_ERR */
 159 #define AHCI_FLAG_HONOR_PI                (1 << 26) /* honor PORTS_IMPL */
 160 #define AHCI_FLAG_IGN_SERR_INTERNAL       (1 << 27) /* ignore SERR_INTERNAL */
 161 #define AHCI_FLAG_32BIT_ONLY              (1 << 28) /* force 32bit */
 162
 163 #define ATA_SRST                          (1 << 2)  /* software reset */
 164
 165 #define STATE_RUN                         0
 166 #define STATE_RESET                       1
 167
 168 #define SATA_SCR_SSTATUS_DET_NODEV        0x0
 169 #define SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP 0x3
 170
 171 #define SATA_SCR_SSTATUS_SPD_NODEV        0x00
 172 #define SATA_SCR_SSTATUS_SPD_GEN1         0x10
 173
 174 #define SATA_SCR_SSTATUS_IPM_NODEV        0x000
 175 #define SATA_SCR_SSTATUS_IPM_ACTIVE       0X100
 176
 177 #define AHCI_SCR_SCTL_DET                 0xf
 178
 179 #define SATA_FIS_TYPE_REGISTER_H2D        0x27
 180 #define SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER 0x80
 181
 182 #define AHCI_CMD_HDR_CMD_FIS_LEN           0x1f
 183 #define AHCI_CMD_HDR_PRDT_LEN              16
 184
 185 #define SATA_SIGNATURE_CDROM               0xeb140000
 186 #define SATA_SIGNATURE_DISK                0x00000101
 187
 188 #define AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR 0x20
 189                                             /* Shouldn't this be 0x2c? */
 190
 191 #define AHCI_PORT_REGS_START_ADDR          0x100
 192 #define AHCI_PORT_ADDR_OFFSET_MASK         0x7f
 193 #define AHCI_PORT_ADDR_OFFSET_LEN          0x80
 194
 195 #define AHCI_NUM_COMMAND_SLOTS             31
 196 #define AHCI_SUPPORTED_SPEED               20
 197 #define AHCI_SUPPORTED_SPEED_GEN1          1
 198 #define AHCI_VERSION_1_0                   0x10000
 199
 200 #define AHCI_PROGMODE_MAJOR_REV_1          1
 201
 202 #define AHCI_COMMAND_TABLE_ACMD            0x40
 203
 204 #define IDE_FEATURE_DMA                    1
 205
 206 #define READ_FPDMA_QUEUED                  0x60
 207 #define WRITE_FPDMA_QUEUED                 0x61
 208
 209 #define RES_FIS_DSFIS                      0x00
 210 #define RES_FIS_PSFIS                      0x20
 211 #define RES_FIS_RFIS                       0x40
 212 #define RES_FIS_SDBFIS                     0x58
 213 #define RES_FIS_UFIS                       0x60
 214
 215 #define SATA_CAP_SIZE           0x8
 216 #define SATA_CAP_REV            0x2
 217 #define SATA_CAP_BAR            0x4
 218
 219 typedef struct AHCIControlRegs {
 220     uint32_t    cap;
 221     uint32_t    ghc;
 222     uint32_t    irqstatus;
 223     uint32_t    impl;
 224     uint32_t    version;
 225 } AHCIControlRegs;
 226
 227 typedef struct AHCIPortRegs {
 228     uint32_t    lst_addr;
 229     uint32_t    lst_addr_hi;
 230     uint32_t    fis_addr;
 231     uint32_t    fis_addr_hi;
 232     uint32_t    irq_stat;
 233     uint32_t    irq_mask;
 234     uint32_t    cmd;
 235     uint32_t    unused0;
 236     uint32_t    tfdata;
 237     uint32_t    sig;
 238     uint32_t    scr_stat;
 239     uint32_t    scr_ctl;
 240     uint32_t    scr_err;
 241     uint32_t    scr_act;
 242     uint32_t    cmd_issue;
 243     uint32_t    reserved;
 244 } AHCIPortRegs;
 245
 246 typedef struct AHCICmdHdr {
 247     uint32_t    opts;
 248     uint32_t    status;
 249     uint64_t    tbl_addr;
 250     uint32_t    reserved[4];
 251 } QEMU_PACKED AHCICmdHdr;
 252
 253 typedef struct AHCI_SG {
 254     uint64_t    addr;
 255     uint32_t    reserved;
 256     uint32_t    flags_size;
 257 } QEMU_PACKED AHCI_SG;
 258
 259 typedef struct AHCIDevice AHCIDevice;
 260
 261 typedef struct NCQTransferState {
 262     AHCIDevice *drive;
 263     BlockDriverAIOCB *aiocb;
 264     QEMUSGList sglist;
 265     BlockAcctCookie acct;
 266     uint16_t sector_count;
 267     uint64_t lba;
 268     uint8_t tag;
 269     int slot;
 270     int used;
 271 } NCQTransferState;
 272
 273 struct AHCIDevice {
 274     IDEDMA dma;
 275     IDEBus port;
 276     int port_no;
 277     uint32_t port_state;
 278     uint32_t finished;
 279     AHCIPortRegs port_regs;
 280     struct AHCIState *hba;
 281     QEMUBH *check_bh;
 282     uint8_t *lst;
 283     uint8_t *res_fis;
 284     bool done_atapi_packet;
 285     int32_t busy_slot;
 286     bool init_d2h_sent;
 287     AHCICmdHdr *cur_cmd;
 288     NCQTransferState ncq_tfs[AHCI_MAX_CMDS];
 289 };
 290
 291 typedef struct AHCIState {
 292     AHCIDevice *dev;
 293     AHCIControlRegs control_regs;
 294     MemoryRegion mem;
 295     MemoryRegion idp;       /* Index-Data Pair I/O port space */
 296     unsigned idp_offset;    /* Offset of index in I/O port space */
 297     uint32_t idp_index;     /* Current IDP index */
 298     int32_t ports;
 299     qemu_irq irq;
 300     DMAContext *dma;
 301 } AHCIState;
 302
 303 typedef struct AHCIPCIState {
 304     PCIDevice card;
 305     AHCIState ahci;
 306 } AHCIPCIState;
 307
 308 extern const VMStateDescription vmstate_ahci;
 309
 310 #define VMSTATE_AHCI(_field, _state) {                               \
 311     .name       = (stringify(_field)),                               \
 312     .size       = sizeof(AHCIState),                                 \
 313     .vmsd       = &vmstate_ahci,                                     \
 314     .flags      = VMS_STRUCT,                                        \
 315     .offset     = vmstate_offset_value(_state, _field, AHCIState),   \
 316 }
 317
 318 typedef struct NCQFrame {
 319     uint8_t fis_type;
 320     uint8_t c;
 321     uint8_t command;
 322     uint8_t sector_count_low;
 323     uint8_t lba0;
 324     uint8_t lba1;
 325     uint8_t lba2;
 326     uint8_t fua;
 327     uint8_t lba3;
 328     uint8_t lba4;
 329     uint8_t lba5;
 330     uint8_t sector_count_high;
 331     uint8_t tag;
 332     uint8_t reserved5;
 333     uint8_t reserved6;
 334     uint8_t control;
 335     uint8_t reserved7;
 336     uint8_t reserved8;
 337     uint8_t reserved9;
 338     uint8_t reserved10;
 339 } QEMU_PACKED NCQFrame;
 340
 341 void ahci_init(AHCIState *s, DeviceState *qdev, DMAContext *dma, int ports);
 342 void ahci_uninit(AHCIState *s);
 343
 344 void ahci_reset(AHCIState *s);
 345
 346 #endif /* HW_IDE_AHCI_H */