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387 lines
15 KiB
C
387 lines
15 KiB
C
/*
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* QEMU AHCI Emulation
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*
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* Copyright (c) 2010 qiaochong@loongson.cn
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* Copyright (c) 2010 Roland Elek <elek.roland@gmail.com>
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* Copyright (c) 2010 Sebastian Herbszt <herbszt@gmx.de>
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* Copyright (c) 2010 Alexander Graf <agraf@suse.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef HW_IDE_AHCI_INTERNAL_H
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#define HW_IDE_AHCI_INTERNAL_H
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#include "hw/ide/ahci.h"
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#include "hw/pci/pci_device.h"
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#include "ide-internal.h"
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#define AHCI_MEM_BAR_SIZE 0x1000
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#define AHCI_MAX_PORTS 32
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#define AHCI_MAX_SG 168 /* hardware max is 64K */
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#define AHCI_DMA_BOUNDARY 0xffffffff
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#define AHCI_USE_CLUSTERING 0
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#define AHCI_MAX_CMDS 32
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#define AHCI_CMD_SZ 32
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#define AHCI_CMD_SLOT_SZ (AHCI_MAX_CMDS * AHCI_CMD_SZ)
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#define AHCI_RX_FIS_SZ 256
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#define AHCI_CMD_TBL_CDB 0x40
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#define AHCI_CMD_TBL_HDR_SZ 0x80
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#define AHCI_CMD_TBL_SZ (AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16))
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#define AHCI_CMD_TBL_AR_SZ (AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS)
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#define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ + \
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AHCI_RX_FIS_SZ)
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#define AHCI_IRQ_ON_SG (1U << 31)
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#define AHCI_CMD_ATAPI (1 << 5)
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#define AHCI_CMD_WRITE (1 << 6)
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#define AHCI_CMD_PREFETCH (1 << 7)
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#define AHCI_CMD_RESET (1 << 8)
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#define AHCI_CMD_CLR_BUSY (1 << 10)
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#define RX_FIS_D2H_REG 0x40 /* offset of D2H Register FIS data */
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#define RX_FIS_SDB 0x58 /* offset of SDB FIS data */
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#define RX_FIS_UNK 0x60 /* offset of Unknown FIS data */
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/* global controller registers */
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enum AHCIHostReg {
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AHCI_HOST_REG_CAP = 0, /* CAP: host capabilities */
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AHCI_HOST_REG_CTL = 1, /* GHC: global host control */
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AHCI_HOST_REG_IRQ_STAT = 2, /* IS: interrupt status */
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AHCI_HOST_REG_PORTS_IMPL = 3, /* PI: bitmap of implemented ports */
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AHCI_HOST_REG_VERSION = 4, /* VS: AHCI spec. version compliance */
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AHCI_HOST_REG_CCC_CTL = 5, /* CCC_CTL: CCC Control */
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AHCI_HOST_REG_CCC_PORTS = 6, /* CCC_PORTS: CCC Ports */
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AHCI_HOST_REG_EM_LOC = 7, /* EM_LOC: Enclosure Mgmt Location */
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AHCI_HOST_REG_EM_CTL = 8, /* EM_CTL: Enclosure Mgmt Control */
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AHCI_HOST_REG_CAP2 = 9, /* CAP2: host capabilities, extended */
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AHCI_HOST_REG_BOHC = 10, /* BOHC: firmware/os handoff ctrl & status */
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AHCI_HOST_REG__COUNT = 11
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};
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/* HOST_CTL bits */
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#define HOST_CTL_RESET (1 << 0) /* reset controller; self-clear */
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#define HOST_CTL_IRQ_EN (1 << 1) /* global IRQ enable */
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#define HOST_CTL_AHCI_EN (1U << 31) /* AHCI enabled */
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/* HOST_CAP bits */
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#define HOST_CAP_SSC (1 << 14) /* Slumber capable */
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#define HOST_CAP_AHCI (1 << 18) /* AHCI only */
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#define HOST_CAP_CLO (1 << 24) /* Command List Override support */
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#define HOST_CAP_SSS (1 << 27) /* Staggered Spin-up */
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#define HOST_CAP_NCQ (1 << 30) /* Native Command Queueing */
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#define HOST_CAP_64 (1U << 31) /* PCI DAC (64-bit DMA) support */
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/* registers for each SATA port */
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enum AHCIPortReg {
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AHCI_PORT_REG_LST_ADDR = 0, /* PxCLB: command list DMA addr */
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AHCI_PORT_REG_LST_ADDR_HI = 1, /* PxCLBU: command list DMA addr hi */
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AHCI_PORT_REG_FIS_ADDR = 2, /* PxFB: FIS rx buf addr */
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AHCI_PORT_REG_FIS_ADDR_HI = 3, /* PxFBU: FIX rx buf addr hi */
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AHCI_PORT_REG_IRQ_STAT = 4, /* PxIS: interrupt status */
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AHCI_PORT_REG_IRQ_MASK = 5, /* PxIE: interrupt enable/disable mask */
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AHCI_PORT_REG_CMD = 6, /* PxCMD: port command */
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/* RESERVED */
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AHCI_PORT_REG_TFDATA = 8, /* PxTFD: taskfile data */
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AHCI_PORT_REG_SIG = 9, /* PxSIG: device TF signature */
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AHCI_PORT_REG_SCR_STAT = 10, /* PxSSTS: SATA phy register: SStatus */
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AHCI_PORT_REG_SCR_CTL = 11, /* PxSCTL: SATA phy register: SControl */
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AHCI_PORT_REG_SCR_ERR = 12, /* PxSERR: SATA phy register: SError */
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AHCI_PORT_REG_SCR_ACT = 13, /* PxSACT: SATA phy register: SActive */
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AHCI_PORT_REG_CMD_ISSUE = 14, /* PxCI: command issue */
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AHCI_PORT_REG_SCR_NOTIF = 15, /* PxSNTF: SATA phy register: SNotification */
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AHCI_PORT_REG_FIS_CTL = 16, /* PxFBS: Port multiplier switching ctl */
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AHCI_PORT_REG_DEV_SLEEP = 17, /* PxDEVSLP: device sleep control */
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/* RESERVED */
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AHCI_PORT_REG_VENDOR_1 = 28, /* PxVS: Vendor Specific */
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AHCI_PORT_REG_VENDOR_2 = 29,
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AHCI_PORT_REG_VENDOR_3 = 30,
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AHCI_PORT_REG_VENDOR_4 = 31,
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AHCI_PORT_REG__COUNT = 32
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};
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/* Port interrupt bit descriptors */
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enum AHCIPortIRQ {
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AHCI_PORT_IRQ_BIT_DHRS = 0,
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AHCI_PORT_IRQ_BIT_PSS = 1,
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AHCI_PORT_IRQ_BIT_DSS = 2,
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AHCI_PORT_IRQ_BIT_SDBS = 3,
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AHCI_PORT_IRQ_BIT_UFS = 4,
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AHCI_PORT_IRQ_BIT_DPS = 5,
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AHCI_PORT_IRQ_BIT_PCS = 6,
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AHCI_PORT_IRQ_BIT_DMPS = 7,
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/* RESERVED */
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AHCI_PORT_IRQ_BIT_PRCS = 22,
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AHCI_PORT_IRQ_BIT_IPMS = 23,
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AHCI_PORT_IRQ_BIT_OFS = 24,
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/* RESERVED */
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AHCI_PORT_IRQ_BIT_INFS = 26,
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AHCI_PORT_IRQ_BIT_IFS = 27,
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AHCI_PORT_IRQ_BIT_HBDS = 28,
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AHCI_PORT_IRQ_BIT_HBFS = 29,
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AHCI_PORT_IRQ_BIT_TFES = 30,
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AHCI_PORT_IRQ_BIT_CPDS = 31,
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AHCI_PORT_IRQ__COUNT = 32
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};
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/* PORT_IRQ_{STAT,MASK} bits */
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#define PORT_IRQ_COLD_PRES (1U << 31) /* cold presence detect */
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#define PORT_IRQ_TF_ERR (1 << 30) /* task file error */
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#define PORT_IRQ_HBUS_ERR (1 << 29) /* host bus fatal error */
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#define PORT_IRQ_HBUS_DATA_ERR (1 << 28) /* host bus data error */
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#define PORT_IRQ_IF_ERR (1 << 27) /* interface fatal error */
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#define PORT_IRQ_IF_NONFATAL (1 << 26) /* interface non-fatal error */
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/* reserved */
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#define PORT_IRQ_OVERFLOW (1 << 24) /* xfer exhausted available S/G */
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#define PORT_IRQ_BAD_PMP (1 << 23) /* incorrect port multiplier */
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#define PORT_IRQ_PHYRDY (1 << 22) /* PhyRdy changed */
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/* reserved */
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#define PORT_IRQ_DEV_ILCK (1 << 7) /* device interlock */
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#define PORT_IRQ_CONNECT (1 << 6) /* port connect change status */
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#define PORT_IRQ_SG_DONE (1 << 5) /* descriptor processed */
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#define PORT_IRQ_UNK_FIS (1 << 4) /* unknown FIS rx'd */
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#define PORT_IRQ_SDB_FIS (1 << 3) /* Set Device Bits FIS rx'd */
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#define PORT_IRQ_DMAS_FIS (1 << 2) /* DMA Setup FIS rx'd */
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#define PORT_IRQ_PIOS_FIS (1 << 1) /* PIO Setup FIS rx'd */
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#define PORT_IRQ_D2H_REG_FIS (1 << 0) /* D2H Register FIS rx'd */
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#define PORT_IRQ_FREEZE (PORT_IRQ_HBUS_ERR | PORT_IRQ_IF_ERR | \
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PORT_IRQ_CONNECT | PORT_IRQ_PHYRDY | \
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PORT_IRQ_UNK_FIS)
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#define PORT_IRQ_ERROR (PORT_IRQ_FREEZE | PORT_IRQ_TF_ERR | \
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PORT_IRQ_HBUS_DATA_ERR)
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#define DEF_PORT_IRQ (PORT_IRQ_ERROR | PORT_IRQ_SG_DONE | \
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PORT_IRQ_SDB_FIS | PORT_IRQ_DMAS_FIS | \
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PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS)
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/* PORT_CMD bits */
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#define PORT_CMD_ATAPI (1 << 24) /* Device is ATAPI */
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#define PORT_CMD_LIST_ON (1 << 15) /* cmd list DMA engine running */
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#define PORT_CMD_FIS_ON (1 << 14) /* FIS DMA engine running */
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#define PORT_CMD_FIS_RX (1 << 4) /* Enable FIS receive DMA engine */
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#define PORT_CMD_CLO (1 << 3) /* Command list override */
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#define PORT_CMD_POWER_ON (1 << 2) /* Power up device */
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#define PORT_CMD_SPIN_UP (1 << 1) /* Spin up device */
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#define PORT_CMD_START (1 << 0) /* Enable port DMA engine */
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#define PORT_CMD_ICC_MASK (0xfU << 28) /* i/f ICC state mask */
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#define PORT_CMD_ICC_ACTIVE (0x1 << 28) /* Put i/f in active state */
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#define PORT_CMD_ICC_PARTIAL (0x2 << 28) /* Put i/f in partial state */
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#define PORT_CMD_ICC_SLUMBER (0x6 << 28) /* Put i/f in slumber state */
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#define PORT_CMD_RO_MASK 0x007dffe0 /* Which CMD bits are read only? */
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/* ap->flags bits */
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#define AHCI_FLAG_NO_NCQ (1 << 24)
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#define AHCI_FLAG_IGN_IRQ_IF_ERR (1 << 25) /* ignore IRQ_IF_ERR */
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#define AHCI_FLAG_HONOR_PI (1 << 26) /* honor PORTS_IMPL */
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#define AHCI_FLAG_IGN_SERR_INTERNAL (1 << 27) /* ignore SERR_INTERNAL */
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#define AHCI_FLAG_32BIT_ONLY (1 << 28) /* force 32bit */
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#define ATA_SRST (1 << 2) /* software reset */
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#define STATE_RUN 0
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#define STATE_RESET 1
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#define SATA_SCR_SSTATUS_DET_NODEV 0x0
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#define SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP 0x3
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#define SATA_SCR_SSTATUS_SPD_NODEV 0x00
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#define SATA_SCR_SSTATUS_SPD_GEN1 0x10
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#define SATA_SCR_SSTATUS_IPM_NODEV 0x000
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#define SATA_SCR_SSTATUS_IPM_ACTIVE 0X100
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#define AHCI_SCR_SCTL_DET 0xf
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#define SATA_FIS_TYPE_REGISTER_H2D 0x27
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#define SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER 0x80
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#define SATA_FIS_TYPE_REGISTER_D2H 0x34
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#define SATA_FIS_TYPE_PIO_SETUP 0x5f
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#define SATA_FIS_TYPE_SDB 0xA1
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#define AHCI_CMD_HDR_CMD_FIS_LEN 0x1f
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#define AHCI_CMD_HDR_PRDT_LEN 16
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#define SATA_SIGNATURE_CDROM 0xeb140101
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#define SATA_SIGNATURE_DISK 0x00000101
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#define AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR 0x2c
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#define AHCI_PORT_REGS_START_ADDR 0x100
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#define AHCI_PORT_ADDR_OFFSET_MASK 0x7f
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#define AHCI_PORT_ADDR_OFFSET_LEN 0x80
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#define AHCI_NUM_COMMAND_SLOTS 31
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#define AHCI_SUPPORTED_SPEED 20
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#define AHCI_SUPPORTED_SPEED_GEN1 1
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#define AHCI_VERSION_1_0 0x10000
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#define AHCI_PROGMODE_MAJOR_REV_1 1
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#define AHCI_COMMAND_TABLE_ACMD 0x40
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#define AHCI_PRDT_SIZE_MASK 0x3fffff
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#define IDE_FEATURE_DMA 1
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#define READ_FPDMA_QUEUED 0x60
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#define WRITE_FPDMA_QUEUED 0x61
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#define NCQ_NON_DATA 0x63
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#define RECEIVE_FPDMA_QUEUED 0x65
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#define SEND_FPDMA_QUEUED 0x64
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#define NCQ_FIS_FUA_MASK 0x80
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#define NCQ_FIS_RARC_MASK 0x01
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#define RES_FIS_DSFIS 0x00
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#define RES_FIS_PSFIS 0x20
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#define RES_FIS_RFIS 0x40
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#define RES_FIS_SDBFIS 0x58
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#define RES_FIS_UFIS 0x60
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#define SATA_CAP_SIZE 0x8
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#define SATA_CAP_REV 0x2
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#define SATA_CAP_BAR 0x4
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typedef struct AHCIPortRegs {
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uint32_t lst_addr;
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uint32_t lst_addr_hi;
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uint32_t fis_addr;
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uint32_t fis_addr_hi;
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uint32_t irq_stat;
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uint32_t irq_mask;
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uint32_t cmd;
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uint32_t unused0;
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uint32_t tfdata;
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uint32_t sig;
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uint32_t scr_stat;
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uint32_t scr_ctl;
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uint32_t scr_err;
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uint32_t scr_act;
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uint32_t cmd_issue;
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uint32_t reserved;
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} AHCIPortRegs;
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typedef struct AHCICmdHdr {
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uint16_t opts;
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uint16_t prdtl;
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uint32_t status;
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uint64_t tbl_addr;
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uint32_t reserved[4];
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} QEMU_PACKED AHCICmdHdr;
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typedef struct AHCI_SG {
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uint64_t addr;
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uint32_t reserved;
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uint32_t flags_size;
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} QEMU_PACKED AHCI_SG;
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typedef struct NCQTransferState {
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AHCIDevice *drive;
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BlockAIOCB *aiocb;
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AHCICmdHdr *cmdh;
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QEMUSGList sglist;
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BlockAcctCookie acct;
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uint32_t sector_count;
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uint64_t lba;
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uint8_t tag;
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uint8_t cmd;
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uint8_t slot;
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bool used;
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bool halt;
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} NCQTransferState;
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struct AHCIDevice {
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IDEDMA dma;
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IDEBus port;
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int port_no;
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uint32_t port_state;
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uint32_t finished;
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AHCIPortRegs port_regs;
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struct AHCIState *hba;
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QEMUBH *check_bh;
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uint8_t *lst;
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uint8_t *res_fis;
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bool done_first_drq;
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int32_t busy_slot;
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bool init_d2h_sent;
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AHCICmdHdr *cur_cmd;
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NCQTransferState ncq_tfs[AHCI_MAX_CMDS];
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MemReentrancyGuard mem_reentrancy_guard;
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};
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extern const VMStateDescription vmstate_ahci;
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#define VMSTATE_AHCI(_field, _state) { \
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.name = (stringify(_field)), \
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.size = sizeof(AHCIState), \
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.vmsd = &vmstate_ahci, \
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.flags = VMS_STRUCT, \
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.offset = vmstate_offset_value(_state, _field, AHCIState), \
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}
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/**
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* NCQFrame is the same as a Register H2D FIS (described in SATA 3.2),
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* but some fields have been re-mapped and re-purposed, as seen in
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* SATA 3.2 section 13.6.4.1 ("READ FPDMA QUEUED")
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*
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* cmd_fis[3], feature 7:0, becomes sector count 7:0.
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* cmd_fis[7], device 7:0, uses bit 7 as the Force Unit Access bit.
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* cmd_fis[11], feature 15:8, becomes sector count 15:8.
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* cmd_fis[12], count 7:0, becomes the NCQ TAG (7:3) and RARC bit (0)
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* cmd_fis[13], count 15:8, becomes the priority value (7:6)
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* bytes 16-19 become an le32 "auxiliary" field.
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*/
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typedef struct NCQFrame {
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uint8_t fis_type;
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uint8_t c;
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uint8_t command;
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uint8_t sector_count_low; /* (feature 7:0) */
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uint8_t lba0;
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uint8_t lba1;
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uint8_t lba2;
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uint8_t fua; /* (device 7:0) */
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uint8_t lba3;
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uint8_t lba4;
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uint8_t lba5;
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uint8_t sector_count_high; /* (feature 15:8) */
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uint8_t tag; /* (count 0:7) */
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uint8_t prio; /* (count 15:8) */
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uint8_t icc;
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uint8_t control;
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uint8_t aux0;
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uint8_t aux1;
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uint8_t aux2;
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uint8_t aux3;
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} QEMU_PACKED NCQFrame;
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typedef struct SDBFIS {
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uint8_t type;
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uint8_t flags;
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uint8_t status;
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uint8_t error;
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uint32_t payload;
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} QEMU_PACKED SDBFIS;
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void ahci_realize(AHCIState *s, DeviceState *qdev, AddressSpace *as);
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void ahci_init(AHCIState *s, DeviceState *qdev);
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void ahci_uninit(AHCIState *s);
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void ahci_reset(AHCIState *s);
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#endif /* HW_IDE_AHCI_INTERNAL_H */
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