diff options
author | 2016-06-03 03:33:22 +0000 | |
---|---|---|
committer | 2016-06-03 03:33:23 +0000 | |
commit | da27230f80795d0028333713f036d44c53cb0e68 (patch) | |
tree | b3d379eaf000adf72b36cb01cdf4d79c3e3f064c /qemu/hw/ide/ahci.c | |
parent | 0e68cb048bb8aadb14675f5d4286d8ab2fc35449 (diff) | |
parent | 437fd90c0250dee670290f9b714253671a990160 (diff) |
Merge "These changes are the raw update to qemu-2.6."
Diffstat (limited to 'qemu/hw/ide/ahci.c')
-rw-r--r-- | qemu/hw/ide/ahci.c | 381 |
1 files changed, 252 insertions, 129 deletions
diff --git a/qemu/hw/ide/ahci.c b/qemu/hw/ide/ahci.c index 48749c1dc..f244bc01c 100644 --- a/qemu/hw/ide/ahci.c +++ b/qemu/hw/ide/ahci.c @@ -21,11 +21,11 @@ * */ +#include "qemu/osdep.h" #include <hw/hw.h> #include <hw/pci/msi.h> #include <hw/i386/pc.h> #include <hw/pci/pci.h> -#include <hw/sysbus.h> #include "qemu/error-report.h" #include "sysemu/block-backend.h" @@ -47,10 +47,9 @@ do { \ static void check_cmd(AHCIState *s, int port); static int handle_cmd(AHCIState *s, int port, uint8_t slot); static void ahci_reset_port(AHCIState *s, int port); -static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t *cmd_fis); +static bool ahci_write_fis_d2h(AHCIDevice *ad); static void ahci_init_d2h(AHCIDevice *ad); static int ahci_dma_prepare_buf(IDEDMA *dma, int32_t limit); -static void ahci_commit_buf(IDEDMA *dma, uint32_t tx_bytes); static bool ahci_map_clb_address(AHCIDevice *ad); static bool ahci_map_fis_address(AHCIDevice *ad); static void ahci_unmap_clb_address(AHCIDevice *ad); @@ -122,9 +121,9 @@ static uint32_t ahci_port_read(AHCIState *s, int port, int offset) static void ahci_irq_raise(AHCIState *s, AHCIDevice *dev) { - AHCIPCIState *d = container_of(s, AHCIPCIState, ahci); - PCIDevice *pci_dev = - (PCIDevice *)object_dynamic_cast(OBJECT(d), TYPE_PCI_DEVICE); + DeviceState *dev_state = s->container; + PCIDevice *pci_dev = (PCIDevice *) object_dynamic_cast(OBJECT(dev_state), + TYPE_PCI_DEVICE); DPRINTF(0, "raise irq\n"); @@ -137,9 +136,9 @@ static void ahci_irq_raise(AHCIState *s, AHCIDevice *dev) static void ahci_irq_lower(AHCIState *s, AHCIDevice *dev) { - AHCIPCIState *d = container_of(s, AHCIPCIState, ahci); - PCIDevice *pci_dev = - (PCIDevice *)object_dynamic_cast(OBJECT(d), TYPE_PCI_DEVICE); + DeviceState *dev_state = s->container; + PCIDevice *pci_dev = (PCIDevice *) object_dynamic_cast(OBJECT(dev_state), + TYPE_PCI_DEVICE); DPRINTF(0, "lower irq\n"); @@ -200,52 +199,38 @@ static void map_page(AddressSpace *as, uint8_t **ptr, uint64_t addr, * Check the cmd register to see if we should start or stop * the DMA or FIS RX engines. * - * @ad: Device to engage. - * @allow_stop: Allow device to transition from started to stopped? - * 'no' is useful for migration post_load, which does not expect a transition. + * @ad: Device to dis/engage. * * @return 0 on success, -1 on error. */ -static int ahci_cond_start_engines(AHCIDevice *ad, bool allow_stop) +static int ahci_cond_start_engines(AHCIDevice *ad) { AHCIPortRegs *pr = &ad->port_regs; - - if (pr->cmd & PORT_CMD_START) { - if (ahci_map_clb_address(ad)) { - pr->cmd |= PORT_CMD_LIST_ON; - } else { + bool cmd_start = pr->cmd & PORT_CMD_START; + bool cmd_on = pr->cmd & PORT_CMD_LIST_ON; + bool fis_start = pr->cmd & PORT_CMD_FIS_RX; + bool fis_on = pr->cmd & PORT_CMD_FIS_ON; + + if (cmd_start && !cmd_on) { + if (!ahci_map_clb_address(ad)) { + pr->cmd &= ~PORT_CMD_START; error_report("AHCI: Failed to start DMA engine: " "bad command list buffer address"); return -1; } - } else if (pr->cmd & PORT_CMD_LIST_ON) { - if (allow_stop) { - ahci_unmap_clb_address(ad); - pr->cmd = pr->cmd & ~(PORT_CMD_LIST_ON); - } else { - error_report("AHCI: DMA engine should be off, " - "but appears to still be running"); - return -1; - } + } else if (!cmd_start && cmd_on) { + ahci_unmap_clb_address(ad); } - if (pr->cmd & PORT_CMD_FIS_RX) { - if (ahci_map_fis_address(ad)) { - pr->cmd |= PORT_CMD_FIS_ON; - } else { + if (fis_start && !fis_on) { + if (!ahci_map_fis_address(ad)) { + pr->cmd &= ~PORT_CMD_FIS_RX; error_report("AHCI: Failed to start FIS receive engine: " "bad FIS receive buffer address"); return -1; } - } else if (pr->cmd & PORT_CMD_FIS_ON) { - if (allow_stop) { - ahci_unmap_fis_address(ad); - pr->cmd = pr->cmd & ~(PORT_CMD_FIS_ON); - } else { - error_report("AHCI: FIS receive engine should be off, " - "but appears to still be running"); - return -1; - } + } else if (!fis_start && fis_on) { + ahci_unmap_fis_address(ad); } return 0; @@ -287,8 +272,8 @@ static void ahci_port_write(AHCIState *s, int port, int offset, uint32_t val) pr->cmd = (pr->cmd & PORT_CMD_RO_MASK) | (val & ~(PORT_CMD_RO_MASK|PORT_CMD_ICC_MASK)); - /* Check FIS RX and CLB engines, allow transition to false: */ - ahci_cond_start_engines(&s->dev[port], true); + /* Check FIS RX and CLB engines */ + ahci_cond_start_engines(&s->dev[port]); /* XXX usually the FIS would be pending on the bus here and issuing deferred until the OS enables FIS receival. @@ -297,7 +282,6 @@ static void ahci_port_write(AHCIState *s, int port, int offset, uint32_t val) if ((pr->cmd & PORT_CMD_FIS_ON) && !s->dev[port].init_d2h_sent) { ahci_init_d2h(&s->dev[port]); - s->dev[port].init_d2h_sent = true; } check_cmd(s, port); @@ -381,17 +365,23 @@ static uint64_t ahci_mem_read(void *opaque, hwaddr addr, unsigned size) int ofst = addr - aligned; uint64_t lo = ahci_mem_read_32(opaque, aligned); uint64_t hi; + uint64_t val; /* if < 8 byte read does not cross 4 byte boundary */ if (ofst + size <= 4) { - return lo >> (ofst * 8); + val = lo >> (ofst * 8); + } else { + g_assert_cmpint(size, >, 1); + + /* If the 64bit read is unaligned, we will produce undefined + * results. AHCI does not support unaligned 64bit reads. */ + hi = ahci_mem_read_32(opaque, aligned + 4); + val = (hi << 32 | lo) >> (ofst * 8); } - g_assert_cmpint(size, >, 1); - /* If the 64bit read is unaligned, we will produce undefined - * results. AHCI does not support unaligned 64bit reads. */ - hi = ahci_mem_read_32(opaque, aligned + 4); - return (hi << 32 | lo) >> (ofst * 8); + DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n", + addr, val, size); + return val; } @@ -400,6 +390,9 @@ static void ahci_mem_write(void *opaque, hwaddr addr, { AHCIState *s = opaque; + DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n", + addr, val, size); + /* Only aligned reads are allowed on AHCI */ if (addr & 3) { fprintf(stderr, "ahci: Mis-aligned write to addr 0x" @@ -540,20 +533,33 @@ static void ahci_check_cmd_bh(void *opaque) static void ahci_init_d2h(AHCIDevice *ad) { - uint8_t init_fis[20]; IDEState *ide_state = &ad->port.ifs[0]; + AHCIPortRegs *pr = &ad->port_regs; - memset(init_fis, 0, sizeof(init_fis)); - - init_fis[4] = 1; - init_fis[12] = 1; + if (ad->init_d2h_sent) { + return; + } - if (ide_state->drive_kind == IDE_CD) { - init_fis[5] = ide_state->lcyl; - init_fis[6] = ide_state->hcyl; + if (ahci_write_fis_d2h(ad)) { + ad->init_d2h_sent = true; + /* We're emulating receiving the first Reg H2D Fis from the device; + * Update the SIG register, but otherwise proceed as normal. */ + pr->sig = ((uint32_t)ide_state->hcyl << 24) | + (ide_state->lcyl << 16) | + (ide_state->sector << 8) | + (ide_state->nsector & 0xFF); } +} - ahci_write_fis_d2h(ad, init_fis); +static void ahci_set_signature(AHCIDevice *ad, uint32_t sig) +{ + IDEState *s = &ad->port.ifs[0]; + s->hcyl = sig >> 24 & 0xFF; + s->lcyl = sig >> 16 & 0xFF; + s->sector = sig >> 8 & 0xFF; + s->nsector = sig & 0xFF; + + DPRINTF(ad->port_no, "set hcyl:lcyl:sect:nsect = 0x%08x\n", sig); } static void ahci_reset_port(AHCIState *s, int port) @@ -604,17 +610,11 @@ static void ahci_reset_port(AHCIState *s, int port) } s->dev[port].port_state = STATE_RUN; - if (!ide_state->blk) { - pr->sig = 0; - ide_state->status = SEEK_STAT | WRERR_STAT; - } else if (ide_state->drive_kind == IDE_CD) { - pr->sig = SATA_SIGNATURE_CDROM; - ide_state->lcyl = 0x14; - ide_state->hcyl = 0xeb; - DPRINTF(port, "set lcyl = %d\n", ide_state->lcyl); + if (ide_state->drive_kind == IDE_CD) { + ahci_set_signature(d, SATA_SIGNATURE_CDROM);\ ide_state->status = SEEK_STAT | WRERR_STAT | READY_STAT; } else { - pr->sig = SATA_SIGNATURE_DISK; + ahci_set_signature(d, SATA_SIGNATURE_DISK); ide_state->status = SEEK_STAT | WRERR_STAT; } @@ -643,11 +643,22 @@ static bool ahci_map_fis_address(AHCIDevice *ad) AHCIPortRegs *pr = &ad->port_regs; map_page(ad->hba->as, &ad->res_fis, ((uint64_t)pr->fis_addr_hi << 32) | pr->fis_addr, 256); - return ad->res_fis != NULL; + if (ad->res_fis != NULL) { + pr->cmd |= PORT_CMD_FIS_ON; + return true; + } + + pr->cmd &= ~PORT_CMD_FIS_ON; + return false; } static void ahci_unmap_fis_address(AHCIDevice *ad) { + if (ad->res_fis == NULL) { + DPRINTF(ad->port_no, "Attempt to unmap NULL FIS address\n"); + return; + } + ad->port_regs.cmd &= ~PORT_CMD_FIS_ON; dma_memory_unmap(ad->hba->as, ad->res_fis, 256, DMA_DIRECTION_FROM_DEVICE, 256); ad->res_fis = NULL; @@ -659,11 +670,22 @@ static bool ahci_map_clb_address(AHCIDevice *ad) ad->cur_cmd = NULL; map_page(ad->hba->as, &ad->lst, ((uint64_t)pr->lst_addr_hi << 32) | pr->lst_addr, 1024); - return ad->lst != NULL; + if (ad->lst != NULL) { + pr->cmd |= PORT_CMD_LIST_ON; + return true; + } + + pr->cmd &= ~PORT_CMD_LIST_ON; + return false; } static void ahci_unmap_clb_address(AHCIDevice *ad) { + if (ad->lst == NULL) { + DPRINTF(ad->port_no, "Attempt to unmap NULL CLB address\n"); + return; + } + ad->port_regs.cmd &= ~PORT_CMD_LIST_ON; dma_memory_unmap(ad->hba->as, ad->lst, 1024, DMA_DIRECTION_FROM_DEVICE, 1024); ad->lst = NULL; @@ -750,7 +772,7 @@ static void ahci_write_fis_pio(AHCIDevice *ad, uint16_t len) ahci_trigger_irq(ad->hba, ad, PORT_IRQ_PIOS_FIS); } -static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t *cmd_fis) +static bool ahci_write_fis_d2h(AHCIDevice *ad) { AHCIPortRegs *pr = &ad->port_regs; uint8_t *d2h_fis; @@ -758,7 +780,7 @@ static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t *cmd_fis) IDEState *s = &ad->port.ifs[0]; if (!ad->res_fis || !(pr->cmd & PORT_CMD_FIS_RX)) { - return; + return false; } d2h_fis = &ad->res_fis[RES_FIS_RFIS]; @@ -791,6 +813,7 @@ static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t *cmd_fis) } ahci_trigger_irq(ad->hba, ad, PORT_IRQ_D2H_REG_FIS); + return true; } static int prdt_tbl_entry_size(const AHCI_SG *tbl) @@ -799,8 +822,21 @@ static int prdt_tbl_entry_size(const AHCI_SG *tbl) return (le32_to_cpu(tbl->flags_size) & AHCI_PRDT_SIZE_MASK) + 1; } +/** + * Fetch entries in a guest-provided PRDT and convert it into a QEMU SGlist. + * @ad: The AHCIDevice for whom we are building the SGList. + * @sglist: The SGList target to add PRD entries to. + * @cmd: The AHCI Command Header that describes where the PRDT is. + * @limit: The remaining size of the S/ATA transaction, in bytes. + * @offset: The number of bytes already transferred, in bytes. + * + * The AHCI PRDT can describe up to 256GiB. S/ATA only support transactions of + * up to 32MiB as of ATA8-ACS3 rev 1b, assuming a 512 byte sector size. We stop + * building the sglist from the PRDT as soon as we hit @limit bytes, + * which is <= INT32_MAX/2GiB. + */ static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist, - AHCICmdHdr *cmd, int64_t limit, int32_t offset) + AHCICmdHdr *cmd, int64_t limit, uint64_t offset) { uint16_t opts = le16_to_cpu(cmd->opts); uint16_t prdtl = le16_to_cpu(cmd->prdtl); @@ -818,14 +854,6 @@ static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist, IDEBus *bus = &ad->port; BusState *qbus = BUS(bus); - /* - * Note: AHCI PRDT can describe up to 256GiB. SATA/ATA only support - * transactions of up to 32MiB as of ATA8-ACS3 rev 1b, assuming a - * 512 byte sector size. We limit the PRDT in this implementation to - * a reasonably large 2GiB, which can accommodate the maximum transfer - * request for sector sizes up to 32K. - */ - if (!prdtl) { DPRINTF(ad->port_no, "no sg list given by guest: 0x%08x\n", opts); return -1; @@ -875,13 +903,6 @@ static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist, qemu_sglist_add(sglist, le64_to_cpu(tbl[i].addr), MIN(prdt_tbl_entry_size(&tbl[i]), limit - sglist->size)); - if (sglist->size > INT32_MAX) { - error_report("AHCI Physical Region Descriptor Table describes " - "more than 2 GiB.\n"); - qemu_sglist_destroy(sglist); - r = -1; - goto out; - } } } @@ -898,6 +919,7 @@ static void ncq_err(NCQTransferState *ncq_tfs) ide_state->error = ABRT_ERR; ide_state->status = READY_STAT | ERR_STAT; ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag); + ncq_tfs->used = 0; } static void ncq_finish(NCQTransferState *ncq_tfs) @@ -1290,7 +1312,7 @@ out: s->data_ptr = s->data_end; /* Update number of transferred bytes, destroy sglist */ - ahci_commit_buf(dma, size); + dma_buf_commit(s, size); s->end_transfer_func(s); @@ -1332,9 +1354,8 @@ static void ahci_restart(IDEDMA *dma) } /** - * Called in DMA R/W chains to read the PRDT, utilizing ahci_populate_sglist. - * Not currently invoked by PIO R/W chains, - * which invoke ahci_populate_sglist via ahci_start_transfer. + * Called in DMA and PIO R/W chains to read the PRDT. + * Not shared with NCQ pathways. */ static int32_t ahci_dma_prepare_buf(IDEDMA *dma, int32_t limit) { @@ -1353,21 +1374,16 @@ static int32_t ahci_dma_prepare_buf(IDEDMA *dma, int32_t limit) } /** - * Destroys the scatter-gather list, - * and updates the command header with a bytes-read value. - * called explicitly via ahci_dma_rw_buf (ATAPI DMA), - * and ahci_start_transfer (PIO R/W), - * and called via callback from ide_dma_cb for DMA R/W paths. + * Updates the command header with a bytes-read value. + * Called via dma_buf_commit, for both DMA and PIO paths. + * sglist destruction is handled within dma_buf_commit. */ static void ahci_commit_buf(IDEDMA *dma, uint32_t tx_bytes) { AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); - IDEState *s = &ad->port.ifs[0]; tx_bytes += le32_to_cpu(ad->cur_cmd->status); ad->cur_cmd->status = cpu_to_le32(tx_bytes); - - qemu_sglist_destroy(&s->sg); } static int ahci_dma_rw_buf(IDEDMA *dma, int is_write) @@ -1388,10 +1404,9 @@ static int ahci_dma_rw_buf(IDEDMA *dma, int is_write) } /* free sglist, update byte count */ - ahci_commit_buf(dma, l); + dma_buf_commit(s, l); s->io_buffer_index += l; - s->io_buffer_offset += l; DPRINTF(ad->port_no, "len=%#x\n", l); @@ -1405,7 +1420,7 @@ static void ahci_cmd_done(IDEDMA *dma) DPRINTF(ad->port_no, "cmd done\n"); /* update d2h status */ - ahci_write_fis_d2h(ad, NULL); + ahci_write_fis_d2h(ad); if (!ad->check_bh) { /* maybe we still have something to process, check later */ @@ -1429,7 +1444,17 @@ static const IDEDMAOps ahci_dma_ops = { .cmd_done = ahci_cmd_done, }; -void ahci_init(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports) +void ahci_init(AHCIState *s, DeviceState *qdev) +{ + s->container = qdev; + /* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */ + memory_region_init_io(&s->mem, OBJECT(qdev), &ahci_mem_ops, s, + "ahci", AHCI_MEM_BAR_SIZE); + memory_region_init_io(&s->idp, OBJECT(qdev), &ahci_idp_ops, s, + "ahci-idp", 32); +} + +void ahci_realize(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports) { qemu_irq *irqs; int i; @@ -1438,14 +1463,7 @@ void ahci_init(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports) s->ports = ports; s->dev = g_new0(AHCIDevice, ports); ahci_reg_init(s); - /* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */ - memory_region_init_io(&s->mem, OBJECT(qdev), &ahci_mem_ops, s, - "ahci", AHCI_MEM_BAR_SIZE); - memory_region_init_io(&s->idp, OBJECT(qdev), &ahci_idp_ops, s, - "ahci-idp", 32); - irqs = qemu_allocate_irqs(ahci_irq_set, s, s->ports); - for (i = 0; i < s->ports; i++) { AHCIDevice *ad = &s->dev[i]; @@ -1542,14 +1560,28 @@ static int ahci_state_post_load(void *opaque, int version_id) int i, j; struct AHCIDevice *ad; NCQTransferState *ncq_tfs; + AHCIPortRegs *pr; AHCIState *s = opaque; for (i = 0; i < s->ports; i++) { ad = &s->dev[i]; + pr = &ad->port_regs; + + if (!(pr->cmd & PORT_CMD_START) && (pr->cmd & PORT_CMD_LIST_ON)) { + error_report("AHCI: DMA engine should be off, but status bit " + "indicates it is still running."); + return -1; + } + if (!(pr->cmd & PORT_CMD_FIS_RX) && (pr->cmd & PORT_CMD_FIS_ON)) { + error_report("AHCI: FIS RX engine should be off, but status bit " + "indicates it is still running."); + return -1; + } - /* Only remap the CLB address if appropriate, disallowing a state - * transition from 'on' to 'off' it should be consistent here. */ - if (ahci_cond_start_engines(ad, false) != 0) { + /* After a migrate, the DMA/FIS engines are "off" and + * need to be conditionally restarted */ + pr->cmd &= ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON); + if (ahci_cond_start_engines(ad) != 0) { return -1; } @@ -1625,18 +1657,6 @@ const VMStateDescription vmstate_ahci = { }, }; -#define TYPE_SYSBUS_AHCI "sysbus-ahci" -#define SYSBUS_AHCI(obj) OBJECT_CHECK(SysbusAHCIState, (obj), TYPE_SYSBUS_AHCI) - -typedef struct SysbusAHCIState { - /*< private >*/ - SysBusDevice parent_obj; - /*< public >*/ - - AHCIState ahci; - uint32_t num_ports; -} SysbusAHCIState; - static const VMStateDescription vmstate_sysbus_ahci = { .name = "sysbus-ahci", .fields = (VMStateField[]) { @@ -1652,17 +1672,24 @@ static void sysbus_ahci_reset(DeviceState *dev) ahci_reset(&s->ahci); } -static void sysbus_ahci_realize(DeviceState *dev, Error **errp) +static void sysbus_ahci_init(Object *obj) { - SysBusDevice *sbd = SYS_BUS_DEVICE(dev); - SysbusAHCIState *s = SYSBUS_AHCI(dev); + SysbusAHCIState *s = SYSBUS_AHCI(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); - ahci_init(&s->ahci, dev, &address_space_memory, s->num_ports); + ahci_init(&s->ahci, DEVICE(obj)); sysbus_init_mmio(sbd, &s->ahci.mem); sysbus_init_irq(sbd, &s->ahci.irq); } +static void sysbus_ahci_realize(DeviceState *dev, Error **errp) +{ + SysbusAHCIState *s = SYSBUS_AHCI(dev); + + ahci_realize(&s->ahci, dev, &address_space_memory, s->num_ports); +} + static Property sysbus_ahci_properties[] = { DEFINE_PROP_UINT32("num-ports", SysbusAHCIState, num_ports, 1), DEFINE_PROP_END_OF_LIST(), @@ -1683,12 +1710,108 @@ static const TypeInfo sysbus_ahci_info = { .name = TYPE_SYSBUS_AHCI, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(SysbusAHCIState), + .instance_init = sysbus_ahci_init, .class_init = sysbus_ahci_class_init, }; +#define ALLWINNER_AHCI_BISTAFR ((0xa0 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_BISTCR ((0xa4 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_BISTFCTR ((0xa8 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_BISTSR ((0xac - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_BISTDECR ((0xb0 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_DIAGNR0 ((0xb4 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_DIAGNR1 ((0xb8 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_OOBR ((0xbc - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_PHYCS0R ((0xc0 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_PHYCS1R ((0xc4 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_PHYCS2R ((0xc8 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_TIMER1MS ((0xe0 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_GPARAM1R ((0xe8 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_GPARAM2R ((0xec - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_PPARAMR ((0xf0 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_TESTR ((0xf4 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_VERSIONR ((0xf8 - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_IDR ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4) +#define ALLWINNER_AHCI_RWCR ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4) + +static uint64_t allwinner_ahci_mem_read(void *opaque, hwaddr addr, + unsigned size) +{ + AllwinnerAHCIState *a = opaque; + uint64_t val = a->regs[addr/4]; + + switch (addr / 4) { + case ALLWINNER_AHCI_PHYCS0R: + val |= 0x2 << 28; + break; + case ALLWINNER_AHCI_PHYCS2R: + val &= ~(0x1 << 24); + break; + } + DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n", + addr, val, size); + return val; +} + +static void allwinner_ahci_mem_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + AllwinnerAHCIState *a = opaque; + + DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n", + addr, val, size); + a->regs[addr/4] = val; +} + +static const MemoryRegionOps allwinner_ahci_mem_ops = { + .read = allwinner_ahci_mem_read, + .write = allwinner_ahci_mem_write, + .valid.min_access_size = 4, + .valid.max_access_size = 4, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static void allwinner_ahci_init(Object *obj) +{ + SysbusAHCIState *s = SYSBUS_AHCI(obj); + AllwinnerAHCIState *a = ALLWINNER_AHCI(obj); + + memory_region_init_io(&a->mmio, OBJECT(obj), &allwinner_ahci_mem_ops, a, + "allwinner-ahci", ALLWINNER_AHCI_MMIO_SIZE); + memory_region_add_subregion(&s->ahci.mem, ALLWINNER_AHCI_MMIO_OFF, + &a->mmio); +} + +static const VMStateDescription vmstate_allwinner_ahci = { + .name = "allwinner-ahci", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, AllwinnerAHCIState, + ALLWINNER_AHCI_MMIO_SIZE/4), + VMSTATE_END_OF_LIST() + } +}; + +static void allwinner_ahci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->vmsd = &vmstate_allwinner_ahci; +} + +static const TypeInfo allwinner_ahci_info = { + .name = TYPE_ALLWINNER_AHCI, + .parent = TYPE_SYSBUS_AHCI, + .instance_size = sizeof(AllwinnerAHCIState), + .instance_init = allwinner_ahci_init, + .class_init = allwinner_ahci_class_init, +}; + static void sysbus_ahci_register_types(void) { type_register_static(&sysbus_ahci_info); + type_register_static(&allwinner_ahci_info); } type_init(sysbus_ahci_register_types) |