@@ -229,6 +229,7 @@ hw-obj-$(CONFIG_IDE_PIIX) += ide/piix.o
hw-obj-$(CONFIG_IDE_CMD646) += ide/cmd646.o
hw-obj-$(CONFIG_IDE_MACIO) += ide/macio.o
hw-obj-$(CONFIG_IDE_VIA) += ide/via.o
+hw-obj-$(CONFIG_AHCI) += ide/ahci.o
# SCSI layer
hw-obj-y += lsi53c895a.o
@@ -19,6 +19,7 @@ CONFIG_IDE_QDEV=y
CONFIG_IDE_PCI=y
CONFIG_IDE_ISA=y
CONFIG_IDE_PIIX=y
+CONFIG_AHCI=y
CONFIG_NE2000_ISA=y
CONFIG_PIIX_PCI=y
CONFIG_SOUND=y
@@ -19,6 +19,7 @@ CONFIG_IDE_QDEV=y
CONFIG_IDE_PCI=y
CONFIG_IDE_ISA=y
CONFIG_IDE_PIIX=y
+CONFIG_AHCI=y
CONFIG_NE2000_ISA=y
CONFIG_PIIX_PCI=y
CONFIG_SOUND=y
new file mode 100644
@@ -0,0 +1,1397 @@
+/*
+ * QEMU AHCI Emulation
+ *
+ * Copyright (c) 2010 qiaochong@loongson.cn
+ * Copyright (c) 2010 Roland Elek <elek.roland@gmail.com>
+ * Copyright (c) 2010 Sebastian Herbszt <herbszt@gmx.de>
+ * Copyright (c) 2010 Alexander Graf <agraf@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * lspci dump of a real device:
+ *
+ * 00:1f.2 Class 0104: 8086:27c3 (rev 01)
+ * Subsystem: 1734:1085
+ * Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B-
+ * Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
+ * Latency: 0
+ * Interrupt: pin B routed to IRQ 50
+ * Region 0: I/O ports at 3440 [size=8]
+ * Region 1: I/O ports at 3434 [size=4]
+ * Region 2: I/O ports at 3438 [size=8]
+ * Region 3: I/O ports at 3430 [size=4]
+ * Region 4: I/O ports at 3400 [size=32]
+ * Region 5: Memory at fc000400 (32-bit, non-prefetchable) [size=1K]
+ * Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
+ * Address: 00000000 Data: 0000
+ * Capabilities: [70] Power Management version 2
+ * Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
+ * Status: D0 PME-Enable- DSel=0 DScale=0 PME-
+ * Capabilities: [a8] #12 [0010]
+ *
+ *
+ * 00:1f.2 RAID bus controller: Intel Corporation 82801GR/GH (ICH7 Family) Serial ATA Storage Controller RAID (rev 01)
+ * 00: 86 80 c3 27 47 00 b0 02 01 00 04 01 00 00 00 00
+ * 10: 41 34 00 00 35 34 00 00 39 34 00 00 31 34 00 00
+ * 20: 01 34 00 00 00 04 00 fc 00 00 00 00 34 17 85 10
+ * 30: 00 00 00 00 80 00 00 00 00 00 00 00 09 02 00 00
+ * 40: 07 a3 07 a3 00 00 00 00 0f 00 11 11 00 00 00 00
+ * 50: 00 00 00 00 ff f0 00 00 00 00 00 00 00 00 00 00
+ * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ * 70: 01 a8 02 40 00 00 00 00 00 00 00 00 00 00 00 00
+ * 80: 05 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ * 90: 80 00 3f 00 80 01 00 00 00 00 00 00 00 00 00 00
+ * a0: 00 00 00 00 00 00 00 00 12 00 10 00 48 00 00 00
+ * b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ * c0: 00 00 00 00 05 00 00 00 00 00 00 00 00 00 00 00
+ * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ * f0: 00 00 00 00 00 00 00 00 86 0f 01 00 00 00 00 00
+ *
+ */
+
+#include <hw/hw.h>
+#include <hw/msi.h>
+#include <hw/pc.h>
+#include <hw/pci.h>
+
+#include "monitor.h"
+#include "dma.h"
+#include "cpu-common.h"
+#include "blockdev.h"
+#include "internal.h"
+#include <hw/ide/pci.h>
+
+/* #define DEBUG_AHCI */
+
+#ifdef DEBUG_AHCI
+#define DPRINTF(port, fmt, ...) \
+do { fprintf(stderr, "ahci: %s: [%d] ", __FUNCTION__, port); \
+ fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(port, fmt, ...) do {} while(0)
+#endif
+
+#define AHCI_PCI_BAR 5
+#define AHCI_MAX_PORTS 32
+#define AHCI_MAX_SG 168 /* hardware max is 64K */
+#define AHCI_DMA_BOUNDARY 0xffffffff
+#define AHCI_USE_CLUSTERING 0
+#define AHCI_MAX_CMDS 32
+#define AHCI_CMD_SZ 32
+#define AHCI_CMD_SLOT_SZ (AHCI_MAX_CMDS * AHCI_CMD_SZ)
+#define AHCI_RX_FIS_SZ 256
+#define AHCI_CMD_TBL_CDB 0x40
+#define AHCI_CMD_TBL_HDR_SZ 0x80
+#define AHCI_CMD_TBL_SZ (AHCI_CMD_TBL_HDR_SZ + (AHCI_MAX_SG * 16))
+#define AHCI_CMD_TBL_AR_SZ (AHCI_CMD_TBL_SZ * AHCI_MAX_CMDS)
+#define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ + AHCI_CMD_TBL_AR_SZ + \
+ AHCI_RX_FIS_SZ)
+
+#define AHCI_IRQ_ON_SG (1 << 31)
+#define AHCI_CMD_ATAPI (1 << 5)
+#define AHCI_CMD_WRITE (1 << 6)
+#define AHCI_CMD_PREFETCH (1 << 7)
+#define AHCI_CMD_RESET (1 << 8)
+#define AHCI_CMD_CLR_BUSY (1 << 10)
+
+#define RX_FIS_D2H_REG 0x40 /* offset of D2H Register FIS data */
+#define RX_FIS_SDB 0x58 /* offset of SDB FIS data */
+#define RX_FIS_UNK 0x60 /* offset of Unknown FIS data */
+
+/* global controller registers */
+#define HOST_CAP 0x00 /* host capabilities */
+#define HOST_CTL 0x04 /* global host control */
+#define HOST_IRQ_STAT 0x08 /* interrupt status */
+#define HOST_PORTS_IMPL 0x0c /* bitmap of implemented ports */
+#define HOST_VERSION 0x10 /* AHCI spec. version compliancy */
+
+/* HOST_CTL bits */
+#define HOST_CTL_RESET (1 << 0) /* reset controller; self-clear */
+#define HOST_CTL_IRQ_EN (1 << 1) /* global IRQ enable */
+#define HOST_CTL_AHCI_EN (1 << 31) /* AHCI enabled */
+
+/* HOST_CAP bits */
+#define HOST_CAP_SSC (1 << 14) /* Slumber capable */
+#define HOST_CAP_AHCI (1 << 18) /* AHCI only */
+#define HOST_CAP_CLO (1 << 24) /* Command List Override support */
+#define HOST_CAP_SSS (1 << 27) /* Staggered Spin-up */
+#define HOST_CAP_NCQ (1 << 30) /* Native Command Queueing */
+#define HOST_CAP_64 (1 << 31) /* PCI DAC (64-bit DMA) support */
+
+/* registers for each SATA port */
+#define PORT_LST_ADDR 0x00 /* command list DMA addr */
+#define PORT_LST_ADDR_HI 0x04 /* command list DMA addr hi */
+#define PORT_FIS_ADDR 0x08 /* FIS rx buf addr */
+#define PORT_FIS_ADDR_HI 0x0c /* FIS rx buf addr hi */
+#define PORT_IRQ_STAT 0x10 /* interrupt status */
+#define PORT_IRQ_MASK 0x14 /* interrupt enable/disable mask */
+#define PORT_CMD 0x18 /* port command */
+#define PORT_TFDATA 0x20 /* taskfile data */
+#define PORT_SIG 0x24 /* device TF signature */
+#define PORT_SCR_STAT 0x28 /* SATA phy register: SStatus */
+#define PORT_SCR_CTL 0x2c /* SATA phy register: SControl */
+#define PORT_SCR_ERR 0x30 /* SATA phy register: SError */
+#define PORT_SCR_ACT 0x34 /* SATA phy register: SActive */
+#define PORT_CMD_ISSUE 0x38 /* command issue */
+#define PORT_RESERVED 0x3c /* reserved */
+
+/* PORT_IRQ_{STAT,MASK} bits */
+#define PORT_IRQ_COLD_PRES (1 << 31) /* cold presence detect */
+#define PORT_IRQ_TF_ERR (1 << 30) /* task file error */
+#define PORT_IRQ_HBUS_ERR (1 << 29) /* host bus fatal error */
+#define PORT_IRQ_HBUS_DATA_ERR (1 << 28) /* host bus data error */
+#define PORT_IRQ_IF_ERR (1 << 27) /* interface fatal error */
+#define PORT_IRQ_IF_NONFATAL (1 << 26) /* interface non-fatal error */
+#define PORT_IRQ_OVERFLOW (1 << 24) /* xfer exhausted available S/G */
+#define PORT_IRQ_BAD_PMP (1 << 23) /* incorrect port multiplier */
+
+#define PORT_IRQ_PHYRDY (1 << 22) /* PhyRdy changed */
+#define PORT_IRQ_DEV_ILCK (1 << 7) /* device interlock */
+#define PORT_IRQ_CONNECT (1 << 6) /* port connect change status */
+#define PORT_IRQ_SG_DONE (1 << 5) /* descriptor processed */
+#define PORT_IRQ_UNK_FIS (1 << 4) /* unknown FIS rx'd */
+#define PORT_IRQ_SDB_FIS (1 << 3) /* Set Device Bits FIS rx'd */
+#define PORT_IRQ_DMAS_FIS (1 << 2) /* DMA Setup FIS rx'd */
+#define PORT_IRQ_PIOS_FIS (1 << 1) /* PIO Setup FIS rx'd */
+#define PORT_IRQ_D2H_REG_FIS (1 << 0) /* D2H Register FIS rx'd */
+
+#define PORT_IRQ_FREEZE (PORT_IRQ_HBUS_ERR | PORT_IRQ_IF_ERR | \
+ PORT_IRQ_CONNECT | PORT_IRQ_PHYRDY | \
+ PORT_IRQ_UNK_FIS)
+#define PORT_IRQ_ERROR (PORT_IRQ_FREEZE | PORT_IRQ_TF_ERR | \
+ PORT_IRQ_HBUS_DATA_ERR)
+#define DEF_PORT_IRQ (PORT_IRQ_ERROR | PORT_IRQ_SG_DONE | \
+ PORT_IRQ_SDB_FIS | PORT_IRQ_DMAS_FIS | \
+ PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS)
+
+/* PORT_CMD bits */
+#define PORT_CMD_ATAPI (1 << 24) /* Device is ATAPI */
+#define PORT_CMD_LIST_ON (1 << 15) /* cmd list DMA engine running */
+#define PORT_CMD_FIS_ON (1 << 14) /* FIS DMA engine running */
+#define PORT_CMD_FIS_RX (1 << 4) /* Enable FIS receive DMA engine */
+#define PORT_CMD_CLO (1 << 3) /* Command list override */
+#define PORT_CMD_POWER_ON (1 << 2) /* Power up device */
+#define PORT_CMD_SPIN_UP (1 << 1) /* Spin up device */
+#define PORT_CMD_START (1 << 0) /* Enable port DMA engine */
+
+#define PORT_CMD_ICC_MASK (0xf << 28) /* i/f ICC state mask */
+#define PORT_CMD_ICC_ACTIVE (0x1 << 28) /* Put i/f in active state */
+#define PORT_CMD_ICC_PARTIAL (0x2 << 28) /* Put i/f in partial state */
+#define PORT_CMD_ICC_SLUMBER (0x6 << 28) /* Put i/f in slumber state */
+
+#define PORT_IRQ_STAT_DHRS (1 << 0) /* Device to Host Register FIS */
+#define PORT_IRQ_STAT_PSS (1 << 1) /* PIO Setup FIS */
+#define PORT_IRQ_STAT_DSS (1 << 2) /* DMA Setup FIS */
+#define PORT_IRQ_STAT_SDBS (1 << 3) /* Set Device Bits */
+#define PORT_IRQ_STAT_UFS (1 << 4) /* Unknown FIS */
+#define PORT_IRQ_STAT_DPS (1 << 5) /* Descriptor Processed */
+#define PORT_IRQ_STAT_PCS (1 << 6) /* Port Connect Change Status */
+#define PORT_IRQ_STAT_DMPS (1 << 7) /* Device Mechanical Presence
+ Status */
+#define PORT_IRQ_STAT_PRCS (1 << 22) /* File Ready Status */
+#define PORT_IRQ_STAT_IPMS (1 << 23) /* Incorrect Port Multiplier
+ Status */
+#define PORT_IRQ_STAT_OFS (1 << 24) /* Overflow Status */
+#define PORT_IRQ_STAT_INFS (1 << 26) /* Interface Non-Fatal Error
+ Status */
+#define PORT_IRQ_STAT_IFS (1 << 27) /* Interface Fatal Error */
+#define PORT_IRQ_STAT_HBDS (1 << 28) /* Host Bus Data Error Status */
+#define PORT_IRQ_STAT_HBFS (1 << 29) /* Host Bus Fatal Error Status */
+#define PORT_IRQ_STAT_TFES (1 << 30) /* Task File Error Status */
+#define PORT_IRQ_STAT_CPDS (1 << 31) /* Code Port Detect Status */
+
+/* ap->flags bits */
+#define AHCI_FLAG_NO_NCQ (1 << 24)
+#define AHCI_FLAG_IGN_IRQ_IF_ERR (1 << 25) /* ignore IRQ_IF_ERR */
+#define AHCI_FLAG_HONOR_PI (1 << 26) /* honor PORTS_IMPL */
+#define AHCI_FLAG_IGN_SERR_INTERNAL (1 << 27) /* ignore SERR_INTERNAL */
+#define AHCI_FLAG_32BIT_ONLY (1 << 28) /* force 32bit */
+
+#define ATA_SRST (1 << 2) /* software reset */
+
+#define STATE_RUN 0
+#define STATE_RESET 1
+
+#define SATA_SCR_SSTATUS_DET_NODEV 0x0
+#define SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP 0x3
+
+#define SATA_SCR_SSTATUS_SPD_NODEV 0x00
+#define SATA_SCR_SSTATUS_SPD_GEN1 0x10
+
+#define SATA_SCR_SSTATUS_IPM_NODEV 0x000
+#define SATA_SCR_SSTATUS_IPM_ACTIVE 0X100
+
+#define AHCI_SCR_SCTL_DET 0xf
+
+#define SATA_FIS_TYPE_REGISTER_H2D 0x27
+#define SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER 0x80
+
+#define AHCI_CMD_HDR_CMD_FIS_LEN 0x1f
+#define AHCI_CMD_HDR_PRDT_LEN 16
+
+#define SATA_SIGNATURE_CDROM 0xeb140000
+#define SATA_SIGNATURE_DISK 0x00000101
+
+#define AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR 0x20
+ /* Shouldn't this be 0x2c? */
+
+#define SATA_PORTS 4
+
+#define AHCI_PORT_REGS_START_ADDR 0x100
+#define AHCI_PORT_REGS_END_ADDR (AHCI_PORT_REGS_START_ADDR + SATA_PORTS * 0x80)
+#define AHCI_PORT_ADDR_OFFSET_MASK 0x7f
+
+#define AHCI_NUM_COMMAND_SLOTS 31
+#define AHCI_SUPPORTED_SPEED 20
+#define AHCI_SUPPORTED_SPEED_GEN1 1
+#define AHCI_VERSION_1_0 0x10000
+
+#define AHCI_PROGMODE_MAJOR_REV_1 1
+
+#define AHCI_COMMAND_TABLE_ACMD 0x40
+
+#define IDE_FEATURE_DMA 1
+
+#define READ_FPDMA_QUEUED 0x60
+#define WRITE_FPDMA_QUEUED 0x61
+
+#define RES_FIS_DSFIS 0x00
+#define RES_FIS_PSFIS 0x20
+#define RES_FIS_RFIS 0x40
+#define RES_FIS_SDBFIS 0x58
+#define RES_FIS_UFIS 0x60
+
+typedef struct AHCIControlRegs {
+ uint32_t cap;
+ uint32_t ghc;
+ uint32_t irqstatus;
+ uint32_t impl;
+ uint32_t version;
+} AHCIControlRegs;
+
+typedef struct AHCIPortRegs {
+ uint32_t lst_addr;
+ uint32_t lst_addr_hi;
+ uint32_t fis_addr;
+ uint32_t fis_addr_hi;
+ uint32_t irq_stat;
+ uint32_t irq_mask;
+ uint32_t cmd;
+ uint32_t unused0;
+ uint32_t tfdata;
+ uint32_t sig;
+ uint32_t scr_stat;
+ uint32_t scr_ctl;
+ uint32_t scr_err;
+ uint32_t scr_act;
+ uint32_t cmd_issue;
+ uint32_t reserved;
+} AHCIPortRegs;
+
+typedef struct AHCICmdHdr {
+ uint32_t opts;
+ uint32_t status;
+ uint64_t tbl_addr;
+ uint32_t reserved[4];
+} __attribute__ ((packed)) AHCICmdHdr;
+
+typedef struct AHCI_SG {
+ uint64_t addr;
+ uint32_t reserved;
+ uint32_t flags_size;
+} __attribute__ ((packed)) AHCI_SG;
+
+typedef struct AHCIDevice AHCIDevice;
+
+typedef struct NCQTransferState {
+ AHCIDevice *drive;
+ QEMUSGList sglist;
+ int is_read;
+ uint16_t sector_count;
+ uint64_t lba;
+ uint8_t tag;
+ int slot;
+ int used;
+} NCQTransferState;
+
+struct AHCIDevice {
+ IDEBus port;
+ BMDMAState bmdma;
+ int port_no;
+ uint32_t port_state;
+ uint32_t finished;
+ AHCIPortRegs port_regs;
+ struct AHCIState *hba;
+ uint8_t *lst;
+ uint8_t *res_fis;
+ uint8_t *cmd_fis;
+ int cmd_fis_len;
+ AHCICmdHdr *cur_cmd;
+ NCQTransferState ncq_tfs[AHCI_MAX_CMDS];
+};
+
+typedef struct AHCIState {
+ AHCIDevice dev[SATA_PORTS];
+ AHCIControlRegs control_regs;
+ int mem;
+ qemu_irq irq;
+} AHCIState;
+
+typedef struct AHCIPCIState {
+ PCIDevice card;
+ AHCIState ahci;
+} AHCIPCIState;
+
+typedef struct H2dNcqFis {
+ uint8_t fis_type;
+ uint8_t c;
+ uint8_t command;
+ uint8_t sector_count_low;
+ uint8_t lba0;
+ uint8_t lba1;
+ uint8_t lba2;
+ uint8_t fua;
+ uint8_t lba3;
+ uint8_t lba4;
+ uint8_t lba5;
+ uint8_t sector_count_high;
+ uint8_t tag;
+ uint8_t reserved5;
+ uint8_t reserved6;
+ uint8_t control;
+ uint8_t reserved7;
+ uint8_t reserved8;
+ uint8_t reserved9;
+ uint8_t reserved10;
+} __attribute__ ((packed)) H2dNcqFis;
+
+static void ahci_irq_set_fn(IDEBus *s);
+
+static void check_cmd(AHCIState *s, int port);
+static int handle_cmd(AHCIState *s,int port,int slot);
+static void ahci_reset_port(AHCIState *s, int port);
+static void ahci_write_fis_d2h(AHCIState *s, int port, uint8_t *cmd_fis);
+
+static uint32_t ahci_port_read(AHCIState *s, int port, int offset)
+{
+ uint32_t val;
+ AHCIPortRegs *pr;
+ pr = &s->dev[port].port_regs;
+
+ switch (offset) {
+ case PORT_LST_ADDR:
+ val = pr->lst_addr;
+ break;
+ case PORT_LST_ADDR_HI:
+ val = pr->lst_addr_hi;
+ break;
+ case PORT_FIS_ADDR:
+ val = pr->fis_addr;
+ break;
+ case PORT_FIS_ADDR_HI:
+ val = pr->fis_addr_hi;
+ break;
+ case PORT_IRQ_STAT:
+ val = pr->irq_stat;
+ break;
+ case PORT_IRQ_MASK:
+ val = pr->irq_mask;
+ break;
+ case PORT_CMD:
+ val = pr->cmd;
+ break;
+ case PORT_TFDATA:
+ val = pr->tfdata;
+ break;
+ case PORT_SIG:
+ val = pr->sig;
+ break;
+ case PORT_SCR_STAT:
+ if (s->dev[port].port.ifs[0].bs) {
+ val = SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP |
+ SATA_SCR_SSTATUS_SPD_GEN1 | SATA_SCR_SSTATUS_IPM_ACTIVE;
+ } else {
+ val = SATA_SCR_SSTATUS_DET_NODEV;
+ }
+ break;
+ case PORT_SCR_CTL:
+ val = pr->scr_ctl;
+ break;
+ case PORT_SCR_ERR:
+ val = pr->scr_err;
+ break;
+ case PORT_SCR_ACT:
+ pr->scr_act &= ~s->dev[port].finished;
+ s->dev[port].finished = 0;
+ val = pr->scr_act;
+ break;
+ case PORT_CMD_ISSUE:
+ val = pr->cmd_issue;
+ break;
+ case PORT_RESERVED:
+ default:
+ val = 0;
+ }
+ DPRINTF(port, "offset: 0x%x val: 0x%x\n", offset, val);
+ return val;
+
+}
+
+static void ahci_irq_raise(AHCIState *s, AHCIDevice *dev)
+{
+ struct AHCIPCIState *d = container_of(s, AHCIPCIState, ahci);
+
+ if (msi_enabled(&d->card)) {
+ msi_notify(&d->card, 0);
+ } else {
+ qemu_irq_raise(s->irq);
+ }
+}
+
+static void ahci_irq_lower(AHCIState *s, AHCIDevice *dev)
+{
+ struct AHCIPCIState *d = container_of(s, AHCIPCIState, ahci);
+
+ if (!msi_enabled(&d->card)) {
+ qemu_irq_lower(s->irq);
+ }
+}
+
+static void ahci_trigger_irq(AHCIState *s, AHCIDevice *d,
+ int irq_type)
+{
+ DPRINTF(d->port_no, "trigger irq %#x -> %x\n",
+ irq_type, d->port_regs.irq_mask & irq_type);
+
+ d->port_regs.irq_stat |= irq_type;
+
+ /* Only trigger an interrupt if unmasked */
+ if (d->port_regs.irq_mask & irq_type) {
+ s->control_regs.irqstatus |= (1 << d->port_no);
+ if (s->control_regs.ghc & HOST_CTL_IRQ_EN) {
+ ahci_irq_raise(s, d);
+ }
+ }
+}
+
+static void ahci_check_irq(AHCIState *s)
+{
+ DPRINTF(-1, "check irq %#x\n", s->control_regs.irqstatus);
+
+ if (s->control_regs.irqstatus &&
+ (s->control_regs.ghc & HOST_CTL_IRQ_EN)) {
+ ahci_irq_raise(s, NULL);
+ }
+}
+
+static void map_page(uint8_t **ptr, uint64_t addr, uint32_t wanted)
+{
+ target_phys_addr_t len = wanted;
+
+ if (*ptr) {
+ cpu_physical_memory_unmap(*ptr, 1, len, len);
+ }
+
+ *ptr = cpu_physical_memory_map(addr, &len, 1);
+ if (len < wanted) {
+ *ptr = NULL;
+ }
+}
+
+static void ahci_port_write(AHCIState *s, int port, int offset, uint32_t val)
+{
+ AHCIPortRegs *pr = &s->dev[port].port_regs;
+
+ DPRINTF(port, "offset: 0x%x val: 0x%x\n", offset, val);
+ switch (offset) {
+ case PORT_LST_ADDR:
+ pr->lst_addr = val;
+ map_page(&s->dev[port].lst,
+ ((uint64_t)pr->lst_addr_hi << 32) | pr->lst_addr, 1024);
+ break;
+ case PORT_LST_ADDR_HI:
+ pr->lst_addr_hi = val;
+ map_page(&s->dev[port].lst,
+ ((uint64_t)pr->lst_addr_hi << 32) | pr->lst_addr, 1024);
+ break;
+ case PORT_FIS_ADDR:
+ pr->fis_addr = val;
+ map_page(&s->dev[port].res_fis,
+ ((uint64_t)pr->fis_addr_hi << 32) | pr->fis_addr, 256);
+ break;
+ case PORT_FIS_ADDR_HI:
+ pr->fis_addr_hi = val;
+ map_page(&s->dev[port].res_fis,
+ ((uint64_t)pr->fis_addr_hi << 32) | pr->fis_addr, 256);
+ break;
+ case PORT_IRQ_STAT:
+ pr->irq_stat &= ~val;
+ break;
+ case PORT_IRQ_MASK:
+ pr->irq_mask = val & 0xfdc000ff;
+ break;
+ case PORT_CMD:
+ pr->cmd = val & ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON);
+
+ if (pr->cmd & PORT_CMD_START) {
+ pr->cmd |= PORT_CMD_LIST_ON;
+ }
+
+ if (pr->cmd & PORT_CMD_FIS_RX) {
+ pr->cmd |= PORT_CMD_FIS_ON;
+ }
+
+ check_cmd(s, port);
+ break;
+ case PORT_TFDATA:
+ pr->tfdata = val;
+ break;
+ case PORT_SIG:
+ pr->sig = val;
+ break;
+ case PORT_SCR_STAT:
+ pr->scr_stat = val;
+ break;
+ case PORT_SCR_CTL:
+ if (((pr->scr_ctl & AHCI_SCR_SCTL_DET) == 1) &&
+ ((val & AHCI_SCR_SCTL_DET) == 0)) {
+ ahci_reset_port(s, port);
+ }
+ pr->scr_ctl = val;
+ break;
+ case PORT_SCR_ERR:
+ pr->scr_err &= ~val;
+ break;
+ case PORT_SCR_ACT:
+ /* RW1 */
+ pr->scr_act |= val;
+ break;
+ case PORT_CMD_ISSUE:
+ pr->cmd_issue |= val;
+ check_cmd(s, port);
+ break;
+ default:
+ break;
+ }
+}
+
+static uint32_t ahci_mem_readl(void *ptr, target_phys_addr_t addr)
+{
+ AHCIState *s = ptr;
+ uint32_t val = 0;
+
+ addr = addr & 0xfff;
+ if (addr < AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR) {
+ switch (addr) {
+ case HOST_CAP:
+ val = s->control_regs.cap;
+ break;
+ case HOST_CTL:
+ val = s->control_regs.ghc;
+ break;
+ case HOST_IRQ_STAT:
+ val = s->control_regs.irqstatus;
+ break;
+ case HOST_PORTS_IMPL:
+ val = s->control_regs.impl;
+ break;
+ case HOST_VERSION:
+ val = s->control_regs.version;
+ break;
+ }
+ } else if ((addr >= AHCI_PORT_REGS_START_ADDR) &&
+ (addr < AHCI_PORT_REGS_END_ADDR)) {
+ val = ahci_port_read(s, (addr - AHCI_PORT_REGS_START_ADDR) >> 7,
+ addr & AHCI_PORT_ADDR_OFFSET_MASK);
+ }
+
+ DPRINTF(-1, "(addr 0x%08X), val 0x%08X\n", (unsigned) addr, val);
+
+ return val;
+}
+
+
+
+static void ahci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val)
+{
+ AHCIState *s = ptr;
+ addr = addr & 0xfff;
+ int i;
+
+ DPRINTF(-1, "(addr 0x%08X), val 0x%08X\n", (unsigned) addr, val);
+
+ /* Only aligned reads are allowed on AHCI */
+ if (addr & 3) {
+ fprintf(stderr, "ahci: Mis-aligned write to addr 0x"
+ TARGET_FMT_plx "\n", addr);
+ return;
+ }
+
+ if (addr < AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR) {
+ switch (addr) {
+ case HOST_CAP: /* R/WO, RO */
+ /* FIXME handle R/WO */
+ break;
+ case HOST_CTL: /* R/W */
+ if (val & HOST_CTL_RESET) {
+ DPRINTF(-1, "HBA Reset\n");
+ /* FIXME reset? */
+ } else {
+ s->control_regs.ghc = (val & 0x3) | HOST_CTL_AHCI_EN;
+ ahci_check_irq(s);
+ }
+ break;
+ case HOST_IRQ_STAT: /* R/WC, RO */
+ s->control_regs.irqstatus &= ~val;
+ for (i = 0; i < SATA_PORTS; i++) {
+ if (s->dev[i].port_regs.irq_stat) {
+ s->control_regs.irqstatus |= (1 << i);
+ ahci_irq_lower(s, &s->dev[i]);
+ ahci_irq_raise(s, &s->dev[i]);
+ }
+ }
+ if (!s->control_regs.irqstatus) {
+ ahci_irq_lower(s, NULL);
+ }
+ break;
+ case HOST_PORTS_IMPL: /* R/WO, RO */
+ /* FIXME handle R/WO */
+ break;
+ case HOST_VERSION: /* RO */
+ /* FIXME report write? */
+ break;
+ default:
+ DPRINTF(-1, "write to unknown register 0x%x\n", (unsigned)addr);
+ }
+ } else if ((addr >= AHCI_PORT_REGS_START_ADDR) &&
+ (addr < AHCI_PORT_REGS_END_ADDR)) {
+ ahci_port_write(s, (addr - AHCI_PORT_REGS_START_ADDR) >> 7,
+ addr & AHCI_PORT_ADDR_OFFSET_MASK, val);
+ }
+
+}
+
+static CPUReadMemoryFunc * const ahci_readfn[3]={
+ ahci_mem_readl,
+ ahci_mem_readl,
+ ahci_mem_readl
+};
+
+static CPUWriteMemoryFunc * const ahci_writefn[3]={
+ ahci_mem_writel,
+ ahci_mem_writel,
+ ahci_mem_writel
+};
+
+static void ahci_reg_init(AHCIState *s)
+{
+ int i;
+
+ s->control_regs.cap = (SATA_PORTS - 1) |
+ (AHCI_NUM_COMMAND_SLOTS << 8) |
+ (AHCI_SUPPORTED_SPEED_GEN1 << AHCI_SUPPORTED_SPEED) |
+ HOST_CAP_NCQ | HOST_CAP_AHCI;
+
+ s->control_regs.impl = (1 << SATA_PORTS) - 1;
+
+ s->control_regs.version = AHCI_VERSION_1_0;
+
+ for (i = 0; i < SATA_PORTS; i++) {
+ s->dev[i].port_state = STATE_RUN;
+ }
+}
+
+static uint32_t write_to_sglist(uint8_t *buffer, uint32_t len,
+ QEMUSGList *sglist)
+{
+ uint32_t i = 0;
+ uint32_t total = 0, once;
+ ScatterGatherEntry *cur_prd;
+ uint32_t sgcount;
+
+ cur_prd = sglist->sg;
+ sgcount = sglist->nsg;
+ for (i = 0; len && sgcount; i++) {
+ once = MIN(cur_prd->len + 1, len);
+ cpu_physical_memory_write(cur_prd->base, buffer, once);
+ cur_prd++;
+ sgcount--;
+ len -= once;
+ buffer += once;
+ total += once;
+ }
+
+ return total;
+}
+
+static void check_cmd(AHCIState *s, int port)
+{
+ AHCIPortRegs *pr = &s->dev[port].port_regs;
+ int slot;
+
+ if (pr->cmd & PORT_CMD_START) {
+ for (slot = 0; (slot < 32) && pr->cmd_issue; slot++) {
+ if ((pr->cmd_issue & (1 << slot)) &&
+ !handle_cmd(s, port, slot)) {
+ pr->cmd_issue &= ~(1 << slot);
+ }
+ }
+ }
+}
+
+static void ahci_reset_port(AHCIState *s, int port)
+{
+ IDEState *ide_state;
+ uint8_t init_fis[0x20];
+ uint32_t tfd;
+
+ DPRINTF(port, "reset port\n");
+
+ ide_state = &s->dev[port].port.ifs[0];
+ if (!ide_state->bs) {
+ return;
+ }
+
+ memset(init_fis, 0, sizeof(init_fis));
+ s->dev[port].port_state = STATE_RUN;
+ if (!ide_state->bs) {
+ s->dev[port].port_regs.sig = 0;
+ tfd = (1 << 8) | SEEK_STAT | WRERR_STAT;
+ } else if (ide_state->drive_kind == IDE_CD) {
+ s->dev[port].port_regs.sig = SATA_SIGNATURE_CDROM;
+ ide_state->lcyl = 0x14;
+ ide_state->hcyl = 0xeb;
+ DPRINTF(port, "set lcyl = %d\n", ide_state->lcyl);
+ init_fis[5] = ide_state->lcyl;
+ init_fis[6] = ide_state->hcyl;
+ tfd = (1 << 8) | SEEK_STAT | WRERR_STAT | READY_STAT;
+ } else {
+ s->dev[port].port_regs.sig = SATA_SIGNATURE_DISK;
+ tfd = (1 << 8) | SEEK_STAT | WRERR_STAT;
+ }
+
+ ide_state->error = 1;
+ ide_state->status = 0;
+ init_fis[4] = 1;
+ init_fis[12] = 1;
+ ahci_write_fis_d2h(s, port, init_fis);
+
+ s->dev[port].port_regs.tfdata = tfd;
+}
+
+static void debug_print_fis(uint8_t *fis, int cmd_len)
+{
+#ifdef DEBUG_AHCI
+ int i;
+
+ fprintf(stderr, "fis:");
+ for (i = 0; i < cmd_len; i++) {
+ if ((i & 0xf) == 0) {
+ fprintf(stderr, "\n%02x:",i);
+ }
+ fprintf(stderr, "%02x ",fis[i]);
+ }
+ fprintf(stderr, "\n");
+#endif
+}
+
+static void ahci_write_fis_sdb(AHCIState *s, int port, uint32_t finished)
+{
+ AHCIPortRegs *pr = &s->dev[port].port_regs;
+ IDEState *ide_state;
+ uint8_t *sdb_fis;
+
+ if (!s->dev[port].res_fis ||
+ !(pr->cmd & PORT_CMD_FIS_RX)) {
+ return;
+ }
+
+ sdb_fis = &s->dev[port].res_fis[RES_FIS_SDBFIS];
+ ide_state = &s->dev[port].port.ifs[0];
+
+ pr->tfdata = (uint16_t)ide_state->error << 8 | ide_state->status;
+
+ /* clear memory */
+ *(uint32_t*)sdb_fis = 0;
+
+ /* write values */
+ sdb_fis[0] = ide_state->error;
+ sdb_fis[2] = ide_state->status & 0x77;
+ s->dev[port].finished |= finished;
+ *(uint32_t*)(sdb_fis + 4) = cpu_to_le32(s->dev[port].finished);
+
+ ahci_trigger_irq(s, &s->dev[port], PORT_IRQ_STAT_SDBS);
+}
+
+static void ahci_write_fis_d2h(AHCIState *s, int port, uint8_t *cmd_fis)
+{
+ AHCIPortRegs *pr = &s->dev[port].port_regs;
+ uint8_t *d2h_fis;
+ int i;
+
+ if (!s->dev[port].res_fis ||
+ !(pr->cmd & PORT_CMD_FIS_RX)) {
+ return;
+ }
+
+ d2h_fis = &s->dev[port].res_fis[RES_FIS_RFIS];
+
+ d2h_fis[0] = 0x34;
+ d2h_fis[1] = (s->control_regs.irqstatus ? (1 << 6) : 0);
+ d2h_fis[2] = s->dev[port].port.ifs[0].status;
+ d2h_fis[3] = s->dev[port].port.ifs[0].error;
+
+ d2h_fis[4] = cmd_fis[4];
+ d2h_fis[5] = cmd_fis[5];
+ d2h_fis[6] = cmd_fis[6];
+ d2h_fis[7] = cmd_fis[7];
+ d2h_fis[8] = cmd_fis[8];
+ d2h_fis[9] = cmd_fis[9];
+ d2h_fis[10] = cmd_fis[10];
+ d2h_fis[11] = cmd_fis[11];
+ d2h_fis[12] = cmd_fis[12];
+ d2h_fis[13] = cmd_fis[13];
+ for (i = 14; i < 0x20; i++) {
+ d2h_fis[i] = 0;
+ }
+
+ pr->tfdata = (uint16_t)d2h_fis[3] << 8 | d2h_fis[2];
+
+ if (d2h_fis[2] & ERR_STAT) {
+ ahci_trigger_irq(s, &s->dev[port], PORT_IRQ_STAT_TFES);
+ }
+
+ ahci_trigger_irq(s, &s->dev[port], PORT_IRQ_D2H_REG_FIS);
+}
+
+static void ncq_cb(void *opaque, int ret)
+{
+ NCQTransferState *ncq_tfs = (NCQTransferState *)opaque;
+ IDEState *ide_state;
+
+ if (ret < 0) {
+ /* error */
+ }
+
+ /* Clear bit for this tag in SActive */
+ ncq_tfs->drive->port_regs.scr_act &= ~(1 << ncq_tfs->tag);
+
+ ide_state = &ncq_tfs->drive->port.ifs[0];
+ ide_state->status = READY_STAT | SEEK_STAT;
+
+ /* XXX do we send a d2h fis here? */
+ ahci_write_fis_d2h(ncq_tfs->drive->hba, ncq_tfs->drive->port_no,
+ ncq_tfs->drive->cmd_fis);
+
+ ahci_write_fis_sdb(ncq_tfs->drive->hba, ncq_tfs->drive->port_no,
+ (1 << ncq_tfs->tag));
+
+ DPRINTF(ncq_tfs->drive->port_no, "NCQ transfer tag %d finished\n",
+ ncq_tfs->tag);
+
+ qemu_sglist_destroy(&ncq_tfs->sglist);
+ cpu_physical_memory_unmap(ncq_tfs->drive->cmd_fis, 1,
+ ncq_tfs->drive->cmd_fis_len,
+ ncq_tfs->drive->cmd_fis_len);
+
+ ncq_tfs->used = 0;
+}
+
+static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
+ int slot, QEMUSGList *sg)
+{
+ H2dNcqFis *ncq_fis = (H2dNcqFis*)cmd_fis;
+ uint8_t tag = ncq_fis->tag >> 3;
+ NCQTransferState *ncq_tfs = &s->dev[port].ncq_tfs[tag];
+
+ if (ncq_tfs->used) {
+ /* error - already in use */
+ fprintf(stderr, "%s: tag %d already used\n", __FUNCTION__, tag);
+ return;
+ }
+
+ ncq_tfs->used = 1;
+ ncq_tfs->drive = &s->dev[port];
+ ncq_tfs->drive->cmd_fis = cmd_fis;
+ ncq_tfs->drive->cmd_fis_len = 0x20;
+ ncq_tfs->slot = slot;
+ ncq_tfs->lba = ((uint64_t)ncq_fis->lba5 << 40) |
+ ((uint64_t)ncq_fis->lba4 << 32) |
+ ((uint64_t)ncq_fis->lba3 << 24) |
+ ((uint64_t)ncq_fis->lba2 << 16) |
+ ((uint64_t)ncq_fis->lba1 << 8) |
+ (uint64_t)ncq_fis->lba0;
+
+ /* Note: We calculate the sector count, but don't currently rely on it.
+ * The total size of the DMA buffer tells us the transfer size instead. */
+ ncq_tfs->sector_count = ((uint16_t)ncq_fis->sector_count_high << 8) |
+ ncq_fis->sector_count_low;
+
+ DPRINTF(port, "NCQ transfer LBA from %ld to %ld, drive max %ld\n",
+ ncq_tfs->lba, ncq_tfs->lba + ncq_tfs->sector_count - 2,
+ s->dev[port].port.ifs[0].nb_sectors - 1);
+
+ ncq_tfs->sglist = *sg;
+ ncq_tfs->tag = tag;
+
+ switch(ncq_fis->command) {
+ case READ_FPDMA_QUEUED:
+ DPRINTF(port, "NCQ reading %d sectors from LBA %ld, tag %d\n",
+ ncq_tfs->sector_count-1, ncq_tfs->lba, ncq_tfs->tag);
+ ncq_tfs->is_read = 1;
+
+ /* XXX: The specification is unclear about whether the DMA Setup
+ * FIS here should have the I bit set, but it suggest that it should
+ * not. Linux works without this interrupt, so I disabled it.
+ * If someone knows if it is needed, please tell me, or fix this. */
+
+ /* ahci_trigger_irq(s,s->dev[port],PORT_IRQ_STAT_DSS); */
+ DPRINTF(port, "tag %d aio read %ld\n", ncq_tfs->tag, ncq_tfs->lba);
+ dma_bdrv_read(ncq_tfs->drive->port.ifs[0].bs, &ncq_tfs->sglist,
+ ncq_tfs->lba, ncq_cb, ncq_tfs);
+ break;
+ case WRITE_FPDMA_QUEUED:
+ DPRINTF(port, "NCQ writing %d sectors to LBA %ld, tag %d\n",
+ ncq_tfs->sector_count-1, ncq_tfs->lba, ncq_tfs->tag);
+ ncq_tfs->is_read = 0;
+ /* ahci_trigger_irq(s,s->dev[port],PORT_IRQ_STAT_DSS); */
+ DPRINTF(port, "tag %d aio write %ld\n", ncq_tfs->tag, ncq_tfs->lba);
+ dma_bdrv_write(ncq_tfs->drive->port.ifs[0].bs, &ncq_tfs->sglist,
+ ncq_tfs->lba, ncq_cb, ncq_tfs);
+ break;
+ default:
+ hw_error("ahci: tried to process non-NCQ command as NCQ\n");
+ break;
+ }
+}
+
+static int handle_cmd(AHCIState *s, int port, int slot)
+{
+ IDEState *ide_state;
+
+ int sglist_alloc_hint;
+ QEMUSGList sglist;
+ int atapi_packet_len = 0;
+ AHCIPortRegs *pr;
+ uint32_t opts;
+ uint64_t tbl_addr;
+ AHCICmdHdr *cmd;
+ uint8_t *cmd_fis;
+
+ target_phys_addr_t cmd_len;
+ int i;
+
+ pr = &s->dev[port].port_regs;
+ cmd = (AHCICmdHdr *)&s->dev[port].lst[slot * 32];
+
+ if (!s->dev[port].lst) {
+ hw_error("%s: lst not given but cmd handled", __FUNCTION__);
+ }
+
+ opts = le32_to_cpu(cmd->opts);
+ tbl_addr = le64_to_cpu(cmd->tbl_addr);
+
+ sglist_alloc_hint = opts >> AHCI_CMD_HDR_PRDT_LEN;
+ cmd_len = 0x80 + (sglist_alloc_hint * sizeof(AHCI_SG));
+ cmd_fis = cpu_physical_memory_map(tbl_addr, &cmd_len, 1);
+
+ /* The device we are working for */
+ ide_state = &s->dev[port].port.ifs[0];
+
+ if (!ide_state->bs) {
+ hw_error("%s: guest accessed unused port", __FUNCTION__);
+ }
+
+ /* Get number of entries in the PRDT, init a qemu sglist accordingly */
+ memset(&sglist, 0, sizeof(sglist));
+
+ if (sglist_alloc_hint > 0) {
+ AHCI_SG *tbl = (AHCI_SG *)(&cmd_fis[0x80]);
+
+ qemu_sglist_init(&sglist, sglist_alloc_hint);
+ /* Parse the PRDs and create qemu sglist entries accordingly */
+ for (i = 0; i < sglist_alloc_hint; i++) {
+ /* flags_size is zero-based */
+ qemu_sglist_add(&sglist, le64_to_cpu(tbl[i].addr),
+ le32_to_cpu(tbl[i].flags_size) + 1);
+ }
+ }
+
+ debug_print_fis(cmd_fis, (opts & AHCI_CMD_HDR_CMD_FIS_LEN) * 4);
+
+ switch (cmd_fis[0]) {
+ case SATA_FIS_TYPE_REGISTER_H2D:
+ break;
+ default:
+ hw_error("unknown command cmd_fis[0]=%02x cmd_fis[1]=%02x cmd_fis[2]=%02x\n",
+ cmd_fis[0], cmd_fis[1], cmd_fis[2]);
+ break;
+ }
+
+ switch (cmd_fis[1]) {
+ case SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER:
+ break;
+ case 0:
+ break;
+ default:
+ hw_error("unknown command cmd_fis[0]=%02x cmd_fis[1]=%02x cmd_fis[2]=%02x\n",
+ cmd_fis[0], cmd_fis[1], cmd_fis[2]);
+ break;
+ }
+
+ switch (s->dev[port].port_state) {
+ case STATE_RUN:
+ if (cmd_fis[15] & ATA_SRST) {
+ s->dev[port].port_state = STATE_RESET;
+ }
+ break;
+ case STATE_RESET:
+ if (!(cmd_fis[15] & ATA_SRST)) {
+ ahci_reset_port(s, port);
+ }
+ break;
+ }
+
+ if (cmd_fis[1] == SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER) {
+
+ /* Check for NCQ command */
+ if ((cmd_fis[2] == READ_FPDMA_QUEUED) ||
+ (cmd_fis[2] == WRITE_FPDMA_QUEUED)) {
+ process_ncq_command(s, port, cmd_fis, slot, &sglist);
+ goto out;
+ }
+
+ /* If the command is not NCQ, the sglist is needed in the core */
+ ide_state->sg = sglist;
+
+ /* Decompose the FIS */
+ ide_state->nsector = (int64_t)((cmd_fis[13] << 8) | cmd_fis[12]);
+ if (!ide_state->nsector) {
+ ide_state->nsector = 256;
+ }
+
+ if (ide_state->drive_kind != IDE_CD) {
+ ide_set_sector(ide_state, (cmd_fis[6] << 16) | (cmd_fis[5] << 8) |
+ cmd_fis[4]);
+ }
+
+ /* Copy the ACMD field (ATAPI packet, if any) from the AHCI command
+ * table to ide_state->io_buffer
+ */
+ if (opts & AHCI_CMD_ATAPI) {
+ atapi_packet_len = ((ide_state->hcyl) << 8) + ide_state->lcyl;
+ memcpy(ide_state->io_buffer, &cmd_fis[AHCI_COMMAND_TABLE_ACMD], 0x10);
+ }
+
+ ide_state->error = 0;
+ s->dev[port].cur_cmd = cmd;
+
+ /* We're ready to process the command in FIS byte 2. */
+ ide_exec_cmd(&s->dev[port].port, cmd_fis[2]);
+
+ /* we're DMA'ing, so we're not ready yet, postpone cleanup to later */
+ if (s->dev[port].bmdma.status & BM_STATUS_DMAING) {
+ cmd->status = 0;
+ s->dev[port].cmd_fis = cmd_fis;
+ s->dev[port].cmd_fis_len = cmd_len;
+ return 0;
+ }
+
+ ahci_write_fis_d2h(s, port, cmd_fis);
+ }
+
+out:
+ cpu_physical_memory_unmap(cmd_fis, 1, cmd_len, cmd_len);
+
+ return 0;
+}
+
+static void ahci_transfer_start(IDEState *s, uint8_t *buf, int size,
+ EndTransferFunc *end_transfer_func)
+{
+ AHCIDevice *ad;
+ AHCIState *as;
+
+ s->end_transfer_func = end_transfer_func;
+
+ ad = DO_UPCAST(AHCIDevice, port, s->bus);
+ as = ad->hba;
+
+ write_to_sglist(buf, (uint32_t)size, &s->sg);
+
+ /* update number of transferred bytes */
+ ad->cur_cmd->status = cpu_to_le32(le32_to_cpu(ad->cur_cmd->status) + size);
+
+ end_transfer_func(s);
+}
+
+static void ahci_dma_start_fn(IDEState *s, BlockDriverCompletionFunc *dma_cb)
+{
+ AHCIDevice *ad;
+ AHCIState *as;
+ BMDMAState *bm = s->bus->bmdma;
+
+ ad = DO_UPCAST(AHCIDevice, port, s->bus);
+ as = ad->hba;
+
+ if (!bm) {
+ return;
+ }
+
+ bm->unit = s->unit;
+ bm->dma_cb = dma_cb;
+ bm->cur_prd_last = 0;
+ bm->cur_prd_addr = 0;
+ bm->cur_prd_len = 0;
+ bm->cur_addr = 0;
+ bm->sector_num = ide_get_sector(s);
+ bm->nsector = s->nsector;
+ bmdma_cmd_writeb(bm, 0, 1);
+}
+
+static int ahci_dma_buf_prepare(BMDMAState *bm, int is_write)
+{
+ IDEState *s = bmdma_active_if(bm);
+ int i;
+
+ s->io_buffer_size = 0;
+ for (i = 0; i < s->sg.nsg; i++) {
+ s->io_buffer_size += s->sg.sg[i].len;
+ }
+
+ DPRINTF(-1, "len=%#x\n", s->io_buffer_size);
+ return s->io_buffer_size != 0;
+}
+
+static int ahci_dma_buf_rw(BMDMAState *bm, int is_write)
+{
+ IDEState *s = bmdma_active_if(bm);
+ int l, len;
+
+ for (;;) {
+ l = s->io_buffer_size - s->io_buffer_index;
+
+ DPRINTF(-1, "size=%#x idx=%#x l=%#x\n",
+ s->io_buffer_size, s->io_buffer_index, l);
+
+ if (l <= 0) {
+ break;
+ }
+
+ if (bm->cur_prd_len == 0) {
+ /* end of table */
+ if (bm->cur_prd_last) {
+ bm->cur_addr = 0;
+ return 0;
+ }
+
+ len = s->sg.sg[bm->cur_addr].len;
+ bm->cur_prd_len = len;
+ bm->cur_prd_addr = s->sg.sg[bm->cur_addr].base;
+
+ DPRINTF(-1, "[%d] base=%#x len=%#x\n",
+ bm->cur_addr, bm->cur_prd_addr, len);
+
+ bm->cur_addr++;
+ bm->cur_prd_last = (bm->cur_addr == s->sg.nsg);
+ }
+
+ if (l > bm->cur_prd_len) {
+ l = bm->cur_prd_len;
+ }
+
+ if (l > 0) {
+ if (is_write) {
+ cpu_physical_memory_write(bm->cur_prd_addr,
+ s->io_buffer + s->io_buffer_index, l);
+ } else {
+ cpu_physical_memory_read(bm->cur_prd_addr,
+ s->io_buffer + s->io_buffer_index, l);
+ }
+ bm->cur_prd_addr += l;
+ bm->cur_prd_len -= l;
+ s->io_buffer_index += l;
+ }
+ }
+
+ return 1;
+}
+
+static void ahci_irq_set_fn(IDEBus *s)
+{
+ AHCIDevice *ad;
+ AHCIState *as;
+
+ ad = DO_UPCAST(AHCIDevice, port, s);
+ as = ad->hba;
+
+ /* error interrupts will be triggered later */
+ if (ad->port.ifs[0].status & ERR_STAT) {
+ return;
+ }
+
+ /* DMA is done */
+ /* XXX find actual end point of a DMA and only do then */
+ if (!(ad->bmdma.status & BM_STATUS_DMAING)) {
+ ahci_trigger_irq(as, ad, PORT_IRQ_STAT_DSS);
+ }
+
+ /* update d2h status */
+ if (ad->cmd_fis) {
+ ahci_write_fis_d2h(as, ad->port_no, ad->cmd_fis);
+ cpu_physical_memory_unmap(ad->cmd_fis, 1, ad->cmd_fis_len, ad->cmd_fis_len);
+ ad->cmd_fis = NULL;
+ }
+}
+
+static IDEBusOps ahci_bus_ops = {
+ .transfer_start_fn = ahci_transfer_start,
+ .irq_set_fn = ahci_irq_set_fn,
+ .dma_start_fn = ahci_dma_start_fn,
+ .dma_prepare_fn = ahci_dma_buf_prepare,
+ .dma_rw_fn = ahci_dma_buf_rw,
+};
+
+static void ahci_init(AHCIState *s, DeviceState *qdev)
+{
+ int i;
+
+ ahci_reg_init(s);
+ s->mem = cpu_register_io_memory(ahci_readfn, ahci_writefn, s);
+
+ for (i = 0; i < SATA_PORTS; i++) {
+ AHCIDevice *ad = &s->dev[i];
+
+ ide_bus_new(&ad->port, qdev);
+ ide_init2(&ad->port, 0);
+
+ ad->hba = s;
+ ad->port_no = i;
+ ad->port.bmdma = &ad->bmdma;
+ ad->bmdma.bus = &ad->port;
+ ad->port.ops = &ahci_bus_ops;
+ ad->port_regs.cmd = PORT_CMD_SPIN_UP | PORT_CMD_POWER_ON;
+ }
+}
+
+static void ahci_pci_map(PCIDevice *pci_dev, int region_num,
+ pcibus_t addr, pcibus_t size, int type)
+{
+ struct AHCIPCIState *d = (struct AHCIPCIState *)pci_dev;
+ AHCIState *s = &d->ahci;
+
+ cpu_register_physical_memory(addr, size, s->mem);
+}
+
+static void ahci_reset(void *opaque)
+{
+ struct AHCIPCIState *d = opaque;
+ int i;
+
+ for (i = 0; i < SATA_PORTS; i++) {
+ AHCIDevice *ad = &d->ahci.dev[i];
+
+ ide_bus_reset(&d->ahci.dev[i].port);
+ ide_dma_reset(&d->ahci.dev[i].bmdma);
+
+ ad->port.ifs[0].feature |= IDE_FEATURE_DMA;
+ ad->port.ifs[0].ncq_queues = AHCI_MAX_CMDS;
+ }
+}
+
+static int pci_ahci_init(PCIDevice *dev)
+{
+ struct AHCIPCIState *d;
+ d = DO_UPCAST(struct AHCIPCIState, card, dev);
+
+ pci_config_set_vendor_id(d->card.config, PCI_VENDOR_ID_INTEL);
+ pci_config_set_device_id(d->card.config, PCI_DEVICE_ID_INTEL_ICH7_AHCI);
+ d->card.config[PCI_COMMAND] = PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER;
+
+ pci_config_set_class(d->card.config, PCI_CLASS_STORAGE_SATA);
+ pci_config_set_prog_interface(d->card.config, AHCI_PROGMODE_MAJOR_REV_1);
+
+ d->card.config[PCI_CACHE_LINE_SIZE] = 0x08; /* Cache line size */
+ d->card.config[PCI_LATENCY_TIMER] = 0x00; /* Latency timer */
+ d->card.config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
+ pci_config_set_interrupt_pin(d->card.config, 1);
+
+ qemu_register_reset(ahci_reset, d);
+
+ pci_register_bar(&d->card, 5, 0x400, PCI_BASE_ADDRESS_SPACE_MEMORY,
+ ahci_pci_map);
+
+ msi_init(dev, 0x50, 1, true, false);
+
+ ahci_init(&d->ahci, &dev->qdev);
+ d->ahci.irq = d->card.irq[0];
+
+ return 0;
+}
+
+static int pci_ahci_uninit(PCIDevice *dev)
+{
+ struct AHCIPCIState *d;
+ d = DO_UPCAST(struct AHCIPCIState, card, dev);
+
+ if (msi_enabled(&d->card)) {
+ msi_uninit(dev);
+ }
+
+ return 0;
+}
+
+static void pci_ahci_write_config(PCIDevice *pci, uint32_t addr,
+ uint32_t val, int len)
+{
+ pci_default_write_config(pci, addr, val, len);
+ msi_write_config(pci, addr, val, len);
+}
+
+static PCIDeviceInfo ahci_info = {
+ .qdev.name = "ahci",
+ .qdev.size = sizeof(AHCIPCIState),
+ .init = pci_ahci_init,
+ .exit = pci_ahci_uninit,
+ .config_write = pci_ahci_write_config,
+};
+
+void ahci_create_default_devs(void *pci_bus)
+{
+ int max_bus;
+ int bus, i;
+
+ max_bus = drive_get_max_bus(IF_SATA);
+ for (bus = 0; bus <= max_bus; bus++) {
+ PCIDevice *pci = pci_create_simple(pci_bus, -1, "ahci");
+ AHCIPCIState *ahci = container_of(pci, AHCIPCIState, card);
+
+ for (i = 0; i < 32; i++) {
+ DriveInfo *dinfo = drive_get(IF_SATA, bus, i);
+ if (dinfo) {
+ ide_create_drive(&ahci->ahci.dev[i].port, 0, dinfo);
+ }
+ }
+ }
+}
+
+static void ahci_pci_register_devices(void)
+{
+ pci_qdev_register(&ahci_info);
+}
+
+device_init(ahci_pci_register_devices)
This patch adds an emulation layer for an ICH-7M AHCI controller. For now this controller does not do IDE legacy emulation. It is a pure AHCI controller. Signed-off-by: Alexander Graf <agraf@suse.de> --- v1 -> v2: - rename IDEExtender to IDEBusOps and make a pointer (kraxel) - make dma hooks explicit by putting them into ops struct (stefanha) - use qdev buses (kraxel) - minor cleanups - dprintf overhaul - add reset function v2 -> v3: - add msi support (kraxel) - use MIN macro (kraxel) - add msi support (kraxel) - fix ncq with multiple ports - zap qdev properties (kraxel) - redesign legacy IF_SATA hooks (kraxel) - don't build ahci as part of target - move to ide/ (kwolf) v3 -> v4: - prepare for endianness safety - add lspci dump (herbszt) - use ich7 instead of ich7m (herbszt) - fix lst+fis mapping (kraxel) - coding style (blue swirl) - explicit mmio setters/getters (blue swirl) --- Makefile.objs | 1 + default-configs/i386-softmmu.mak | 1 + default-configs/x86_64-softmmu.mak | 1 + hw/ide/ahci.c | 1397 ++++++++++++++++++++++++++++++++++++ 4 files changed, 1400 insertions(+), 0 deletions(-) create mode 100644 hw/ide/ahci.c