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 #include <hw/sysbus.h>
  28
  29 #define AHCI_MEM_BAR_SIZE         0x1000
  30 #define AHCI_MAX_PORTS            32
  31 #define AHCI_MAX_SG               168 /* hardware max is 64K */
  32 #define AHCI_DMA_BOUNDARY         0xffffffff
  33 #define AHCI_USE_CLUSTERING       0
  34 #define AHCI_MAX_CMDS             32
  35 #define AHCI_CMD_SZ               32
  36 #define AHCI_CMD_SLOT_SZ          (AHCI_MAX_CMDS * AHCI_CMD_SZ)
  37 #define AHCI_RX_FIS_SZ            256
  38 #define AHCI_CMD_TBL_CDB          0x40
  39 #define AHCI_CMD_TBL_HDR_SZ       0x80
  40 #define AHCI_CMD_TBL_SZ           (AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16))
  41 #define AHCI_CMD_TBL_AR_SZ        (AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS)
  42 #define AHCI_PORT_PRIV_DMA_SZ     (AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ + \
  43                                    AHCI_RX_FIS_SZ)
  44
  45 #define AHCI_IRQ_ON_SG            (1U << 31)
  46 #define AHCI_CMD_ATAPI            (1 << 5)
  47 #define AHCI_CMD_WRITE            (1 << 6)
  48 #define AHCI_CMD_PREFETCH         (1 << 7)
  49 #define AHCI_CMD_RESET            (1 << 8)
  50 #define AHCI_CMD_CLR_BUSY         (1 << 10)
  51
  52 #define RX_FIS_D2H_REG            0x40 /* offset of D2H Register FIS data */
  53 #define RX_FIS_SDB                0x58 /* offset of SDB FIS data */
  54 #define RX_FIS_UNK                0x60 /* offset of Unknown FIS data */
  55
  56 /* global controller registers */
  57 #define HOST_CAP                  0x00 /* host capabilities */
  58 #define HOST_CTL                  0x04 /* global host control */
  59 #define HOST_IRQ_STAT             0x08 /* interrupt status */
  60 #define HOST_PORTS_IMPL           0x0c /* bitmap of implemented ports */
  61 #define HOST_VERSION              0x10 /* AHCI spec. version compliancy */
  62
  63 /* HOST_CTL bits */
  64 #define HOST_CTL_RESET            (1 << 0)  /* reset controller; self-clear */
  65 #define HOST_CTL_IRQ_EN           (1 << 1)  /* global IRQ enable */
  66 #define HOST_CTL_AHCI_EN          (1U << 31) /* AHCI enabled */
  67
  68 /* HOST_CAP bits */
  69 #define HOST_CAP_SSC              (1 << 14) /* Slumber capable */
  70 #define HOST_CAP_AHCI             (1 << 18) /* AHCI only */
  71 #define HOST_CAP_CLO              (1 << 24) /* Command List Override support */
  72 #define HOST_CAP_SSS              (1 << 27) /* Staggered Spin-up */
  73 #define HOST_CAP_NCQ              (1 << 30) /* Native Command Queueing */
  74 #define HOST_CAP_64               (1U << 31) /* PCI DAC (64-bit DMA) support */
  75
  76 /* registers for each SATA port */
  77 #define PORT_LST_ADDR             0x00 /* command list DMA addr */
  78 #define PORT_LST_ADDR_HI          0x04 /* command list DMA addr hi */
  79 #define PORT_FIS_ADDR             0x08 /* FIS rx buf addr */
  80 #define PORT_FIS_ADDR_HI          0x0c /* FIS rx buf addr hi */
  81 #define PORT_IRQ_STAT             0x10 /* interrupt status */
  82 #define PORT_IRQ_MASK             0x14 /* interrupt enable/disable mask */
  83 #define PORT_CMD                  0x18 /* port command */
  84 #define PORT_TFDATA               0x20 /* taskfile data */
  85 #define PORT_SIG                  0x24 /* device TF signature */
  86 #define PORT_SCR_STAT             0x28 /* SATA phy register: SStatus */
  87 #define PORT_SCR_CTL              0x2c /* SATA phy register: SControl */
  88 #define PORT_SCR_ERR              0x30 /* SATA phy register: SError */
  89 #define PORT_SCR_ACT              0x34 /* SATA phy register: SActive */
  90 #define PORT_CMD_ISSUE            0x38 /* command issue */
  91 #define PORT_RESERVED             0x3c /* reserved */
  92
  93 /* PORT_IRQ_{STAT,MASK} bits */
  94 #define PORT_IRQ_COLD_PRES        (1U << 31) /* cold presence detect */
  95 #define PORT_IRQ_TF_ERR           (1 << 30) /* task file error */
  96 #define PORT_IRQ_HBUS_ERR         (1 << 29) /* host bus fatal error */
  97 #define PORT_IRQ_HBUS_DATA_ERR    (1 << 28) /* host bus data error */
  98 #define PORT_IRQ_IF_ERR           (1 << 27) /* interface fatal error */
  99 #define PORT_IRQ_IF_NONFATAL      (1 << 26) /* interface non-fatal error */
 100 #define PORT_IRQ_OVERFLOW         (1 << 24) /* xfer exhausted available S/G */
 101 #define PORT_IRQ_BAD_PMP          (1 << 23) /* incorrect port multiplier */
 102
 103 #define PORT_IRQ_PHYRDY           (1 << 22) /* PhyRdy changed */
 104 #define PORT_IRQ_DEV_ILCK         (1 << 7) /* device interlock */
 105 #define PORT_IRQ_CONNECT          (1 << 6) /* port connect change status */
 106 #define PORT_IRQ_SG_DONE          (1 << 5) /* descriptor processed */
 107 #define PORT_IRQ_UNK_FIS          (1 << 4) /* unknown FIS rx'd */
 108 #define PORT_IRQ_SDB_FIS          (1 << 3) /* Set Device Bits FIS rx'd */
 109 #define PORT_IRQ_DMAS_FIS         (1 << 2) /* DMA Setup FIS rx'd */
 110 #define PORT_IRQ_PIOS_FIS         (1 << 1) /* PIO Setup FIS rx'd */
 111 #define PORT_IRQ_D2H_REG_FIS      (1 << 0) /* D2H Register FIS rx'd */
 112
 113 #define PORT_IRQ_FREEZE           (PORT_IRQ_HBUS_ERR | PORT_IRQ_IF_ERR |   \
 114                                    PORT_IRQ_CONNECT | PORT_IRQ_PHYRDY |    \
 115                                    PORT_IRQ_UNK_FIS)
 116 #define PORT_IRQ_ERROR            (PORT_IRQ_FREEZE | PORT_IRQ_TF_ERR |     \
 117                                    PORT_IRQ_HBUS_DATA_ERR)
 118 #define DEF_PORT_IRQ              (PORT_IRQ_ERROR | PORT_IRQ_SG_DONE |     \
 119                                    PORT_IRQ_SDB_FIS | PORT_IRQ_DMAS_FIS |  \
 120                                    PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS)
 121
 122 /* PORT_CMD bits */
 123 #define PORT_CMD_ATAPI            (1 << 24) /* Device is ATAPI */
 124 #define PORT_CMD_LIST_ON          (1 << 15) /* cmd list DMA engine running */
 125 #define PORT_CMD_FIS_ON           (1 << 14) /* FIS DMA engine running */
 126 #define PORT_CMD_FIS_RX           (1 << 4) /* Enable FIS receive DMA engine */
 127 #define PORT_CMD_CLO              (1 << 3) /* Command list override */
 128 #define PORT_CMD_POWER_ON         (1 << 2) /* Power up device */
 129 #define PORT_CMD_SPIN_UP          (1 << 1) /* Spin up device */
 130 #define PORT_CMD_START            (1 << 0) /* Enable port DMA engine */
 131
 132 #define PORT_CMD_ICC_MASK        (0xfU << 28) /* i/f ICC state mask */
 133 #define PORT_CMD_ICC_ACTIVE       (0x1 << 28) /* Put i/f in active state */
 134 #define PORT_CMD_ICC_PARTIAL      (0x2 << 28) /* Put i/f in partial state */
 135 #define PORT_CMD_ICC_SLUMBER      (0x6 << 28) /* Put i/f in slumber state */
 136
 137 #define PORT_CMD_RO_MASK          0x007dffe0 /* Which CMD bits are read only? */
 138
 139 /* ap->flags bits */
 140 #define AHCI_FLAG_NO_NCQ                  (1 << 24)
 141 #define AHCI_FLAG_IGN_IRQ_IF_ERR          (1 << 25) /* ignore IRQ_IF_ERR */
 142 #define AHCI_FLAG_HONOR_PI                (1 << 26) /* honor PORTS_IMPL */
 143 #define AHCI_FLAG_IGN_SERR_INTERNAL       (1 << 27) /* ignore SERR_INTERNAL */
 144 #define AHCI_FLAG_32BIT_ONLY              (1 << 28) /* force 32bit */
 145
 146 #define ATA_SRST                          (1 << 2)  /* software reset */
 147
 148 #define STATE_RUN                         0
 149 #define STATE_RESET                       1
 150
 151 #define SATA_SCR_SSTATUS_DET_NODEV        0x0
 152 #define SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP 0x3
 153
 154 #define SATA_SCR_SSTATUS_SPD_NODEV        0x00
 155 #define SATA_SCR_SSTATUS_SPD_GEN1         0x10
 156
 157 #define SATA_SCR_SSTATUS_IPM_NODEV        0x000
 158 #define SATA_SCR_SSTATUS_IPM_ACTIVE       0X100
 159
 160 #define AHCI_SCR_SCTL_DET                 0xf
 161
 162 #define SATA_FIS_TYPE_REGISTER_H2D        0x27
 163 #define   SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER 0x80
 164 #define SATA_FIS_TYPE_REGISTER_D2H        0x34
 165 #define SATA_FIS_TYPE_PIO_SETUP           0x5f
 166 #define SATA_FIS_TYPE_SDB                 0xA1
 167
 168 #define AHCI_CMD_HDR_CMD_FIS_LEN           0x1f
 169 #define AHCI_CMD_HDR_PRDT_LEN              16
 170
 171 #define SATA_SIGNATURE_CDROM               0xeb140101
 172 #define SATA_SIGNATURE_DISK                0x00000101
 173
 174 #define AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR 0x20
 175                                             /* Shouldn't this be 0x2c? */
 176
 177 #define AHCI_PORT_REGS_START_ADDR          0x100
 178 #define AHCI_PORT_ADDR_OFFSET_MASK         0x7f
 179 #define AHCI_PORT_ADDR_OFFSET_LEN          0x80
 180
 181 #define AHCI_NUM_COMMAND_SLOTS             31
 182 #define AHCI_SUPPORTED_SPEED               20
 183 #define AHCI_SUPPORTED_SPEED_GEN1          1
 184 #define AHCI_VERSION_1_0                   0x10000
 185
 186 #define AHCI_PROGMODE_MAJOR_REV_1          1
 187
 188 #define AHCI_COMMAND_TABLE_ACMD            0x40
 189
 190 #define AHCI_PRDT_SIZE_MASK                0x3fffff
 191
 192 #define IDE_FEATURE_DMA                    1
 193
 194 #define READ_FPDMA_QUEUED                  0x60
 195 #define WRITE_FPDMA_QUEUED                 0x61
 196 #define NCQ_NON_DATA                       0x63
 197 #define RECEIVE_FPDMA_QUEUED               0x65
 198 #define SEND_FPDMA_QUEUED                  0x64
 199
 200 #define NCQ_FIS_FUA_MASK                   0x80
 201 #define NCQ_FIS_RARC_MASK                  0x01
 202
 203 #define RES_FIS_DSFIS                      0x00
 204 #define RES_FIS_PSFIS                      0x20
 205 #define RES_FIS_RFIS                       0x40
 206 #define RES_FIS_SDBFIS                     0x58
 207 #define RES_FIS_UFIS                       0x60
 208
 209 #define SATA_CAP_SIZE           0x8
 210 #define SATA_CAP_REV            0x2
 211 #define SATA_CAP_BAR            0x4
 212
 213 typedef struct AHCIControlRegs {
 214     uint32_t    cap;
 215     uint32_t    ghc;
 216     uint32_t    irqstatus;
 217     uint32_t    impl;
 218     uint32_t    version;
 219 } AHCIControlRegs;
 220
 221 typedef struct AHCIPortRegs {
 222     uint32_t    lst_addr;
 223     uint32_t    lst_addr_hi;
 224     uint32_t    fis_addr;
 225     uint32_t    fis_addr_hi;
 226     uint32_t    irq_stat;
 227     uint32_t    irq_mask;
 228     uint32_t    cmd;
 229     uint32_t    unused0;
 230     uint32_t    tfdata;
 231     uint32_t    sig;
 232     uint32_t    scr_stat;
 233     uint32_t    scr_ctl;
 234     uint32_t    scr_err;
 235     uint32_t    scr_act;
 236     uint32_t    cmd_issue;
 237     uint32_t    reserved;
 238 } AHCIPortRegs;
 239
 240 typedef struct AHCICmdHdr {
 241     uint16_t    opts;
 242     uint16_t    prdtl;
 243     uint32_t    status;
 244     uint64_t    tbl_addr;
 245     uint32_t    reserved[4];
 246 } QEMU_PACKED AHCICmdHdr;
 247
 248 typedef struct AHCI_SG {
 249     uint64_t    addr;
 250     uint32_t    reserved;
 251     uint32_t    flags_size;
 252 } QEMU_PACKED AHCI_SG;
 253
 254 typedef struct AHCIDevice AHCIDevice;
 255
 256 typedef struct NCQTransferState {
 257     AHCIDevice *drive;
 258     BlockAIOCB *aiocb;
 259     AHCICmdHdr *cmdh;
 260     QEMUSGList sglist;
 261     BlockAcctCookie acct;
 262     uint32_t sector_count;
 263     uint64_t lba;
 264     uint8_t tag;
 265     uint8_t cmd;
 266     uint8_t slot;
 267     bool used;
 268     bool halt;
 269 } NCQTransferState;
 270
 271 struct AHCIDevice {
 272     IDEDMA dma;
 273     IDEBus port;
 274     int port_no;
 275     uint32_t port_state;
 276     uint32_t finished;
 277     AHCIPortRegs port_regs;
 278     struct AHCIState *hba;
 279     QEMUBH *check_bh;
 280     uint8_t *lst;
 281     uint8_t *res_fis;
 282     bool done_atapi_packet;
 283     int32_t busy_slot;
 284     bool init_d2h_sent;
 285     AHCICmdHdr *cur_cmd;
 286     NCQTransferState ncq_tfs[AHCI_MAX_CMDS];
 287 };
 288
 289 typedef struct AHCIState {
 290     DeviceState *container;
 291
 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     AddressSpace *as;
 301 } AHCIState;
 302
 303 typedef struct AHCIPCIState {
 304     /*< private >*/
 305     PCIDevice parent_obj;
 306     /*< public >*/
 307
 308     AHCIState ahci;
 309 } AHCIPCIState;
 310
 311 #define TYPE_ICH9_AHCI "ich9-ahci"
 312
 313 #define ICH_AHCI(obj) \
 314     OBJECT_CHECK(AHCIPCIState, (obj), TYPE_ICH9_AHCI)
 315
 316 extern const VMStateDescription vmstate_ahci;
 317
 318 #define VMSTATE_AHCI(_field, _state) {                               \
 319     .name       = (stringify(_field)),                               \
 320     .size       = sizeof(AHCIState),                                 \
 321     .vmsd       = &vmstate_ahci,                                     \
 322     .flags      = VMS_STRUCT,                                        \
 323     .offset     = vmstate_offset_value(_state, _field, AHCIState),   \
 324 }
 325
 326 /**
 327  * NCQFrame is the same as a Register H2D FIS (described in SATA 3.2),
 328  * but some fields have been re-mapped and re-purposed, as seen in
 329  * SATA 3.2 section 13.6.4.1 ("READ FPDMA QUEUED")
 330  *
 331  * cmd_fis[3], feature 7:0, becomes sector count 7:0.
 332  * cmd_fis[7], device 7:0, uses bit 7 as the Force Unit Access bit.
 333  * cmd_fis[11], feature 15:8, becomes sector count 15:8.
 334  * cmd_fis[12], count 7:0, becomes the NCQ TAG (7:3) and RARC bit (0)
 335  * cmd_fis[13], count 15:8, becomes the priority value (7:6)
 336  * bytes 16-19 become an le32 "auxiliary" field.
 337  */
 338 typedef struct NCQFrame {
 339     uint8_t fis_type;
 340     uint8_t c;
 341     uint8_t command;
 342     uint8_t sector_count_low;  /* (feature 7:0) */
 343     uint8_t lba0;
 344     uint8_t lba1;
 345     uint8_t lba2;
 346     uint8_t fua;               /* (device 7:0) */
 347     uint8_t lba3;
 348     uint8_t lba4;
 349     uint8_t lba5;
 350     uint8_t sector_count_high; /* (feature 15:8) */
 351     uint8_t tag;               /* (count 0:7) */
 352     uint8_t prio;              /* (count 15:8) */
 353     uint8_t icc;
 354     uint8_t control;
 355     uint8_t aux0;
 356     uint8_t aux1;
 357     uint8_t aux2;
 358     uint8_t aux3;
 359 } QEMU_PACKED NCQFrame;
 360
 361 typedef struct SDBFIS {
 362     uint8_t type;
 363     uint8_t flags;
 364     uint8_t status;
 365     uint8_t error;
 366     uint32_t payload;
 367 } QEMU_PACKED SDBFIS;
 368
 369 void ahci_init(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports);
 370 void ahci_uninit(AHCIState *s);
 371
 372 void ahci_reset(AHCIState *s);
 373
 374 void ahci_ide_create_devs(PCIDevice *dev, DriveInfo **hd);
 375
 376 #define TYPE_SYSBUS_AHCI "sysbus-ahci"
 377 #define SYSBUS_AHCI(obj) OBJECT_CHECK(SysbusAHCIState, (obj), TYPE_SYSBUS_AHCI)
 378
 379 typedef struct SysbusAHCIState {
 380     /*< private >*/
 381     SysBusDevice parent_obj;
 382     /*< public >*/
 383
 384     AHCIState ahci;
 385     uint32_t num_ports;
 386 } SysbusAHCIState;
 387
 388 #endif /* HW_IDE_AHCI_H */