/* * HP-PARISC Astro/Pluto/Ike/REO system bus adapter (SBA) * with Elroy PCI bus (LBA) adapter emulation * Found in C3000 and similar machines * * (C) 2023 by Helge Deller * * This work is licensed under the GNU GPL license version 2 or later. * * Chip documentation is available at: * https://parisc.wiki.kernel.org/index.php/Technical_Documentation * * TODO: * - All user-added devices are currently attached to the first * Elroy (PCI bus) only for now. To fix this additional work in * SeaBIOS and this driver is needed. See "user_creatable" flag below. * - GMMIO (Greater than 4 GB MMIO) register */ #define TYPE_ASTRO_IOMMU_MEMORY_REGION "astro-iommu-memory-region" #define F_EXTEND(addr) ((addr) | MAKE_64BIT_MASK(32, 32)) #include "qemu/osdep.h" #include "qemu/module.h" #include "qemu/units.h" #include "qapi/error.h" #include "hw/irq.h" #include "hw/pci/pci_device.h" #include "hw/pci/pci_bus.h" #include "hw/qdev-properties.h" #include "hw/pci-host/astro.h" #include "hw/hppa/hppa_hardware.h" #include "migration/vmstate.h" #include "target/hppa/cpu.h" #include "trace.h" #include "qom/object.h" /* * Helper functions */ static uint64_t mask_32bit_val(hwaddr addr, unsigned size, uint64_t val) { if (size == 8) { return val; } if (addr & 4) { val >>= 32; } else { val = (uint32_t) val; } return val; } static void put_val_in_int64(uint64_t *p, hwaddr addr, unsigned size, uint64_t val) { if (size == 8) { *p = val; } else if (size == 4) { if (addr & 4) { *p = ((*p << 32) >> 32) | (val << 32); } else { *p = ((*p >> 32) << 32) | (uint32_t) val; } } } static void put_val_in_arrary(uint64_t *array, hwaddr start_addr, hwaddr addr, unsigned size, uint64_t val) { int index; index = (addr - start_addr) / 8; put_val_in_int64(&array[index], addr, size, val); } /* * The Elroy PCI host bridge. We have at least 4 of those under Astro. */ static MemTxResult elroy_chip_read_with_attrs(void *opaque, hwaddr addr, uint64_t *data, unsigned size, MemTxAttrs attrs) { MemTxResult ret = MEMTX_OK; ElroyState *s = opaque; uint64_t val = -1; int index; switch ((addr >> 3) << 3) { case 0x0008: val = 0x6000005; /* func_class */ break; case 0x0058: /* * Scratch register, but firmware initializes it with the * PCI BUS number and Linux/HP-UX uses it then. */ val = s->pci_bus_num; /* Upper byte holds the end of this bus number */ val |= s->pci_bus_num << 8; break; case 0x0080: val = s->arb_mask; /* set ARB mask */ break; case 0x0108: val = s->status_control; break; case 0x200 ... 0x250 - 1: /* LMMIO, GMMIO, WLMMIO, WGMMIO, ... */ index = (addr - 0x200) / 8; val = s->mmio_base[index]; break; case 0x0680: val = s->error_config; break; case 0x0688: val = 0; /* ERROR_STATUS */ break; case 0x0800: /* IOSAPIC_REG_SELECT */ val = s->iosapic_reg_select; break; case 0x0810: /* IOSAPIC_REG_WINDOW */ switch (s->iosapic_reg_select) { case 0x01: /* IOSAPIC_REG_VERSION */ val = (32 << 16) | 1; /* upper 16bit holds max entries */ break; default: if (s->iosapic_reg_select < ARRAY_SIZE(s->iosapic_reg)) { val = s->iosapic_reg[s->iosapic_reg_select]; } else { goto check_hf; } } trace_iosapic_reg_read(s->iosapic_reg_select, size, val); break; default: check_hf: if (s->status_control & HF_ENABLE) { val = 0; ret = MEMTX_DECODE_ERROR; } else { /* return -1ULL if HardFail is disabled */ val = ~0; ret = MEMTX_OK; } } trace_elroy_read(addr, size, val); /* for 32-bit accesses mask return value */ val = mask_32bit_val(addr, size, val); trace_astro_chip_read(addr, size, val); *data = val; return ret; } static MemTxResult elroy_chip_write_with_attrs(void *opaque, hwaddr addr, uint64_t val, unsigned size, MemTxAttrs attrs) { ElroyState *s = opaque; int i; trace_elroy_write(addr, size, val); switch ((addr >> 3) << 3) { case 0x000: /* PCI_ID & PCI_COMMAND_STATUS_REG */ break; case 0x080: put_val_in_int64(&s->arb_mask, addr, size, val); break; case 0x0108: put_val_in_int64(&s->status_control, addr, size, val); break; case 0x200 ... 0x250 - 1: /* LMMIO, GMMIO, WLMMIO, WGMMIO, ... */ put_val_in_arrary(s->mmio_base, 0x200, addr, size, val); break; case 0x300: /* ibase */ case 0x308: /* imask */ break; case 0x0680: put_val_in_int64(&s->error_config, addr, size, val); break; case 0x0800: /* IOSAPIC_REG_SELECT */ s->iosapic_reg_select = val; break; case 0x0810: /* IOSAPIC_REG_WINDOW */ trace_iosapic_reg_write(s->iosapic_reg_select, size, val); if (s->iosapic_reg_select < ARRAY_SIZE(s->iosapic_reg)) { s->iosapic_reg[s->iosapic_reg_select] = val; } else { goto check_hf; } break; case 0x0840: /* IOSAPIC_REG_EOI */ val = le64_to_cpu(val); val &= 63; for (i = 0; i < ELROY_IRQS; i++) { if ((s->iosapic_reg[0x10 + 2 * i] & 63) == val) { s->ilr &= ~(1ull << i); } } break; default: check_hf: if (s->status_control & HF_ENABLE) { return MEMTX_DECODE_ERROR; } } return MEMTX_OK; } static const MemoryRegionOps elroy_chip_ops = { .read_with_attrs = elroy_chip_read_with_attrs, .write_with_attrs = elroy_chip_write_with_attrs, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 4, .max_access_size = 8, }, .impl = { .min_access_size = 4, .max_access_size = 8, }, }; /* Unlike pci_config_data_le_ops, no check of high bit set in config_reg. */ static uint64_t elroy_config_data_read(void *opaque, hwaddr addr, unsigned len) { uint64_t val; PCIHostState *s = opaque; val = pci_data_read(s->bus, s->config_reg | (addr & 3), len); trace_elroy_pci_config_data_read(s->config_reg | (addr & 3), len, val); return val; } static void elroy_config_data_write(void *opaque, hwaddr addr, uint64_t val, unsigned len) { PCIHostState *s = opaque; pci_data_write(s->bus, s->config_reg | (addr & 3), val, len); trace_elroy_pci_config_data_write(s->config_reg | (addr & 3), len, val); } static const MemoryRegionOps elroy_config_data_ops = { .read = elroy_config_data_read, .write = elroy_config_data_write, .endianness = DEVICE_LITTLE_ENDIAN, }; static uint64_t elroy_config_addr_read(void *opaque, hwaddr addr, unsigned len) { ElroyState *s = opaque; return s->config_reg_elroy; } static void elroy_config_addr_write(void *opaque, hwaddr addr, uint64_t val, unsigned len) { PCIHostState *s = opaque; ElroyState *es = opaque; es->config_reg_elroy = val; /* keep a copy of original value */ s->config_reg = val; } static const MemoryRegionOps elroy_config_addr_ops = { .read = elroy_config_addr_read, .write = elroy_config_addr_write, .valid.min_access_size = 4, .valid.max_access_size = 8, .endianness = DEVICE_LITTLE_ENDIAN, }; /* Handle PCI-to-system address translation. */ static IOMMUTLBEntry astro_translate_iommu(IOMMUMemoryRegion *iommu, hwaddr addr, IOMMUAccessFlags flag, int iommu_idx) { AstroState *s = container_of(iommu, AstroState, iommu); hwaddr pdir_ptr, index, ibase; hwaddr addr_mask = 0xfff; /* 4k translation */ uint64_t entry; #define IOVP_SHIFT 12 /* equals PAGE_SHIFT */ #define PDIR_INDEX(iovp) ((iovp) >> IOVP_SHIFT) #define SBA_PDIR_VALID_BIT 0x8000000000000000ULL addr &= ~addr_mask; /* * Default translation: "32-bit PCI Addressing on 40-bit Runway". * For addresses in the 32-bit memory address range ... and then * language which not-coincidentally matches the PSW.W=0 mapping. */ if (addr <= UINT32_MAX) { entry = hppa_abs_to_phys_pa2_w0(addr); } else { entry = addr; } /* "range enable" flag cleared? */ if ((s->tlb_ibase & 1) == 0) { goto skip; } ibase = s->tlb_ibase & ~1ULL; if ((addr & s->tlb_imask) != ibase) { /* do not translate this one! */ goto skip; } index = PDIR_INDEX(addr); pdir_ptr = s->tlb_pdir_base + index * sizeof(entry); entry = ldq_le_phys(&address_space_memory, pdir_ptr); if (!(entry & SBA_PDIR_VALID_BIT)) { /* I/O PDIR entry valid ? */ /* failure */ return (IOMMUTLBEntry) { .perm = IOMMU_NONE }; } entry &= ~SBA_PDIR_VALID_BIT; entry >>= IOVP_SHIFT; entry <<= 12; skip: return (IOMMUTLBEntry) { .target_as = &address_space_memory, .iova = addr, .translated_addr = entry, .addr_mask = addr_mask, .perm = IOMMU_RW, }; } static AddressSpace *elroy_pcihost_set_iommu(PCIBus *bus, void *opaque, int devfn) { ElroyState *s = opaque; return &s->astro->iommu_as; } static const PCIIOMMUOps elroy_pcihost_iommu_ops = { .get_address_space = elroy_pcihost_set_iommu, }; /* * Encoding in IOSAPIC: * base_addr == 0xfffa0000, we want to get 0xa0ff0000. * eid 0x0ff00000 -> 0x00ff0000 * id 0x000ff000 -> 0xff000000 */ #define SWIZZLE_HPA(a) \ ((((a) & 0x0ff00000) >> 4) | (((a) & 0x000ff000) << 12)) #define UNSWIZZLE_HPA(a) \ (((((a) << 4) & 0x0ff00000) | (((a) >> 12) & 0x000ff000) | 0xf0000000)) /* bits in the "low" I/O Sapic IRdT entry */ #define IOSAPIC_IRDT_DISABLE 0x10000 /* if bit is set, mask this irq */ #define IOSAPIC_IRDT_PO_LOW 0x02000 #define IOSAPIC_IRDT_LEVEL_TRIG 0x08000 #define IOSAPIC_IRDT_MODE_LPRI 0x00100 #define CPU_IRQ_OFFSET 2 static void elroy_set_irq(void *opaque, int irq, int level) { ElroyState *s = opaque; uint32_t bit; uint32_t old_ilr = s->ilr; hwaddr cpu_hpa; uint32_t val; val = s->iosapic_reg[0x10 + 2 * irq]; cpu_hpa = s->iosapic_reg[0x11 + 2 * irq]; /* low nibble of val has value to write into CPU irq reg */ bit = 1u << (val & (ELROY_IRQS - 1)); cpu_hpa = UNSWIZZLE_HPA(cpu_hpa); if (level && (!(val & IOSAPIC_IRDT_DISABLE)) && cpu_hpa) { uint32_t ena = bit & ~old_ilr; s->ilr = old_ilr | bit; if (ena != 0) { stl_be_phys(&address_space_memory, F_EXTEND(cpu_hpa), val & 63); } } else { s->ilr = old_ilr & ~bit; } } static int elroy_pci_map_irq(PCIDevice *d, int irq_num) { int slot = PCI_SLOT(d->devfn); assert(irq_num >= 0 && irq_num < ELROY_IRQS); return slot & (ELROY_IRQS - 1); } static void elroy_reset(DeviceState *dev) { ElroyState *s = ELROY_PCI_HOST_BRIDGE(dev); int irq; /* * Make sure to disable interrupts at reboot, otherwise the Linux kernel * serial8250_config_port() in drivers/tty/serial/8250/8250_port.c * will hang during autoconfig(). */ s->ilr = 0; for (irq = 0; irq < ELROY_IRQS; irq++) { s->iosapic_reg[0x10 + 2 * irq] = IOSAPIC_IRDT_PO_LOW | IOSAPIC_IRDT_LEVEL_TRIG | (irq + CPU_IRQ_OFFSET) | IOSAPIC_IRDT_DISABLE; s->iosapic_reg[0x11 + 2 * irq] = SWIZZLE_HPA(CPU_HPA); } } static void elroy_pcihost_init(Object *obj) { ElroyState *s = ELROY_PCI_HOST_BRIDGE(obj); PCIHostState *phb = PCI_HOST_BRIDGE(obj); SysBusDevice *sbd = SYS_BUS_DEVICE(obj); /* Elroy config access from CPU. */ memory_region_init_io(&s->this_mem, OBJECT(s), &elroy_chip_ops, s, "elroy", 0x2000); /* Elroy PCI config. */ memory_region_init_io(&phb->conf_mem, OBJECT(phb), &elroy_config_addr_ops, DEVICE(s), "pci-conf-idx", 8); memory_region_init_io(&phb->data_mem, OBJECT(phb), &elroy_config_data_ops, DEVICE(s), "pci-conf-data", 8); memory_region_add_subregion(&s->this_mem, 0x40, &phb->conf_mem); memory_region_add_subregion(&s->this_mem, 0x48, &phb->data_mem); /* Elroy PCI bus memory. */ memory_region_init(&s->pci_mmio, OBJECT(s), "pci-mmio", UINT64_MAX); memory_region_init_io(&s->pci_io, OBJECT(s), &unassigned_io_ops, obj, "pci-isa-mmio", ((uint32_t) IOS_DIST_BASE_SIZE) / ROPES_PER_IOC); phb->bus = pci_register_root_bus(DEVICE(s), "pci", elroy_set_irq, elroy_pci_map_irq, s, &s->pci_mmio, &s->pci_io, PCI_DEVFN(0, 0), ELROY_IRQS, TYPE_PCI_BUS); sysbus_init_mmio(sbd, &s->this_mem); qdev_init_gpio_in(DEVICE(obj), elroy_set_irq, ELROY_IRQS); } static Property elroy_pcihost_properties[] = { DEFINE_PROP_END_OF_LIST(), }; static const VMStateDescription vmstate_elroy = { .name = "Elroy", .version_id = 1, .minimum_version_id = 1, .fields = (const VMStateField[]) { VMSTATE_UINT64(hpa, ElroyState), VMSTATE_UINT32(pci_bus_num, ElroyState), VMSTATE_UINT64(config_address, ElroyState), VMSTATE_UINT64(config_reg_elroy, ElroyState), VMSTATE_UINT64(status_control, ElroyState), VMSTATE_UINT64(arb_mask, ElroyState), VMSTATE_UINT64_ARRAY(mmio_base, ElroyState, (0x0250 - 0x200) / 8), VMSTATE_UINT64(error_config, ElroyState), VMSTATE_UINT32(iosapic_reg_select, ElroyState), VMSTATE_UINT64_ARRAY(iosapic_reg, ElroyState, 0x20), VMSTATE_UINT32(ilr, ElroyState), VMSTATE_END_OF_LIST() } }; static void elroy_pcihost_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); device_class_set_legacy_reset(dc, elroy_reset); device_class_set_props(dc, elroy_pcihost_properties); dc->vmsd = &vmstate_elroy; dc->user_creatable = false; } static const TypeInfo elroy_pcihost_info = { .name = TYPE_ELROY_PCI_HOST_BRIDGE, .parent = TYPE_PCI_HOST_BRIDGE, .instance_init = elroy_pcihost_init, .instance_size = sizeof(ElroyState), .class_init = elroy_pcihost_class_init, }; static void elroy_register_types(void) { type_register_static(&elroy_pcihost_info); } type_init(elroy_register_types) static ElroyState *elroy_init(int num) { DeviceState *dev; dev = qdev_new(TYPE_ELROY_PCI_HOST_BRIDGE); dev->id = g_strdup_printf("elroy%d", num); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); return ELROY_PCI_HOST_BRIDGE(dev); } /* * Astro Runway chip. */ static MemTxResult astro_chip_read_with_attrs(void *opaque, hwaddr addr, uint64_t *data, unsigned size, MemTxAttrs attrs) { AstroState *s = opaque; MemTxResult ret = MEMTX_OK; uint64_t val = -1; int index; switch ((addr >> 3) << 3) { /* R2I registers */ case 0x0000: /* ID */ val = (0x01 << 3) | 0x01ULL; break; case 0x0008: /* IOC_CTRL */ val = s->ioc_ctrl; break; case 0x0010: /* TOC_CLIENT_ID */ break; case 0x0030: /* HP-UX 10.20 and 11.11 reads it. No idea. */ val = -1; break; case 0x0078: /* NetBSD reads 0x78 ? */ val = -1; break; case 0x0300 ... 0x03d8: /* LMMIO_DIRECT0_BASE... */ index = (addr - 0x300) / 8; val = s->ioc_ranges[index]; break; case 0x10200: val = 0; break; case 0x10220: case 0x10230: /* HP-UX 11.11 reads it. No idea. */ val = -1; break; case 0x22108: /* IOC STATUS_CONTROL */ val = s->ioc_status_ctrl; break; case 0x20200 ... 0x20240 - 1: /* IOC Rope0_Control ... */ index = (addr - 0x20200) / 8; val = s->ioc_rope_control[index]; break; case 0x20040: /* IOC Rope config */ val = s->ioc_rope_config; break; case 0x20050: /* IOC Rope debug */ val = 0; break; case 0x20108: /* IOC STATUS_CONTROL */ val = s->ioc_status_control; break; case 0x20310: /* IOC_PCOM */ val = s->tlb_pcom; /* TODO: flush iommu */ break; case 0x20400: val = s->ioc_flush_control; break; /* empty placeholders for non-existent elroys */ #define EMPTY_PORT(x) case x: case x+8: val = 0; break; \ case x+40: case x+48: val = UINT64_MAX; break; EMPTY_PORT(0x30000) EMPTY_PORT(0x32000) EMPTY_PORT(0x34000) EMPTY_PORT(0x36000) EMPTY_PORT(0x38000) EMPTY_PORT(0x3a000) EMPTY_PORT(0x3c000) EMPTY_PORT(0x3e000) #undef EMPTY_PORT default: val = 0; ret = MEMTX_DECODE_ERROR; } /* for 32-bit accesses mask return value */ val = mask_32bit_val(addr, size, val); trace_astro_chip_read(addr, size, val); *data = val; return ret; } static MemTxResult astro_chip_write_with_attrs(void *opaque, hwaddr addr, uint64_t val, unsigned size, MemTxAttrs attrs) { MemTxResult ret = MEMTX_OK; AstroState *s = opaque; trace_astro_chip_write(addr, size, val); switch ((addr >> 3) << 3) { case 0x0000: /* ID */ break; case 0x0008: /* IOC_CTRL */ val &= 0x0ffffff; put_val_in_int64(&s->ioc_ctrl, addr, size, val); break; case 0x0010: /* TOC_CLIENT_ID */ break; case 0x0030: /* HP-UX 10.20 and 11.11 reads it. No idea. */ break; case 0x0300 ... 0x03d8 - 1: /* LMMIO_DIRECT0_BASE... */ put_val_in_arrary(s->ioc_ranges, 0x300, addr, size, val); break; case 0x10200: case 0x10220: case 0x10230: /* HP-UX 11.11 reads it. No idea. */ break; case 0x20200 ... 0x20240 - 1: /* IOC Rope0_Control ... */ put_val_in_arrary(s->ioc_rope_control, 0x20200, addr, size, val); break; case 0x20040: /* IOC Rope config */ case 0x22040: put_val_in_int64(&s->ioc_rope_config, addr, size, val); break; case 0x20300: case 0x22300: put_val_in_int64(&s->tlb_ibase, addr, size, val); break; case 0x20308: case 0x22308: put_val_in_int64(&s->tlb_imask, addr, size, val); break; case 0x20310: case 0x22310: put_val_in_int64(&s->tlb_pcom, addr, size, val); /* TODO: flush iommu */ break; case 0x20318: case 0x22318: put_val_in_int64(&s->tlb_tcnfg, addr, size, val); break; case 0x20320: case 0x22320: put_val_in_int64(&s->tlb_pdir_base, addr, size, val); break; case 0x22000: /* func_id */ break; case 0x22008: /* func_class */ break; case 0x22050: /* rope_debug */ break; case 0x22108: /* IOC STATUS_CONTROL */ put_val_in_int64(&s->ioc_status_ctrl, addr, size, val); break; /* * empty placeholders for non-existent elroys, e.g. * func_class, pci config & data */ #define EMPTY_PORT(x) case x: case x+8: case x+0x40: case x+0x48: EMPTY_PORT(0x30000) EMPTY_PORT(0x32000) EMPTY_PORT(0x34000) EMPTY_PORT(0x36000) EMPTY_PORT(0x38000) EMPTY_PORT(0x3a000) EMPTY_PORT(0x3c000) EMPTY_PORT(0x3e000) break; #undef EMPTY_PORT default: ret = MEMTX_DECODE_ERROR; } return ret; } static const MemoryRegionOps astro_chip_ops = { .read_with_attrs = astro_chip_read_with_attrs, .write_with_attrs = astro_chip_write_with_attrs, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 4, .max_access_size = 8, }, .impl = { .min_access_size = 4, .max_access_size = 8, }, }; static const VMStateDescription vmstate_astro = { .name = "Astro", .version_id = 1, .minimum_version_id = 1, .fields = (const VMStateField[]) { VMSTATE_UINT64(ioc_ctrl, AstroState), VMSTATE_UINT64(ioc_status_ctrl, AstroState), VMSTATE_UINT64_ARRAY(ioc_ranges, AstroState, (0x03d8 - 0x300) / 8), VMSTATE_UINT64(ioc_rope_config, AstroState), VMSTATE_UINT64(ioc_status_control, AstroState), VMSTATE_UINT64(ioc_flush_control, AstroState), VMSTATE_UINT64_ARRAY(ioc_rope_control, AstroState, 8), VMSTATE_UINT64(tlb_ibase, AstroState), VMSTATE_UINT64(tlb_imask, AstroState), VMSTATE_UINT64(tlb_pcom, AstroState), VMSTATE_UINT64(tlb_tcnfg, AstroState), VMSTATE_UINT64(tlb_pdir_base, AstroState), VMSTATE_END_OF_LIST() } }; static void astro_reset(DeviceState *dev) { AstroState *s = ASTRO_CHIP(dev); int i; s->ioc_ctrl = 0x29cf; s->ioc_rope_config = 0xc5f; s->ioc_flush_control = 0xb03; s->ioc_status_control = 0; memset(&s->ioc_rope_control, 0, sizeof(s->ioc_rope_control)); /* * The SBA BASE/MASK registers control CPU -> IO routing. * The LBA BASE/MASK registers control IO -> System routing (in Elroy) */ memset(&s->ioc_ranges, 0, sizeof(s->ioc_ranges)); s->ioc_ranges[(0x360 - 0x300) / 8] = LMMIO_DIST_BASE_ADDR | 0x01; /* LMMIO_DIST_BASE (SBA) */ s->ioc_ranges[(0x368 - 0x300) / 8] = 0xfc000000; /* LMMIO_DIST_MASK */ s->ioc_ranges[(0x370 - 0x300) / 8] = 0; /* LMMIO_DIST_ROUTE */ s->ioc_ranges[(0x390 - 0x300) / 8] = IOS_DIST_BASE_ADDR | 0x01; /* IOS_DIST_BASE */ s->ioc_ranges[(0x398 - 0x300) / 8] = 0xffffff0000; /* IOS_DIST_MASK */ s->ioc_ranges[(0x3a0 - 0x300) / 8] = 0x3400000000000000ULL; /* IOS_DIST_ROUTE */ s->ioc_ranges[(0x3c0 - 0x300) / 8] = 0xfffee00000; /* IOS_DIRECT_BASE */ s->ioc_ranges[(0x3c8 - 0x300) / 8] = 0xffffff0000; /* IOS_DIRECT_MASK */ s->ioc_ranges[(0x3d0 - 0x300) / 8] = 0x0; /* IOS_DIRECT_ROUTE */ s->tlb_ibase = 0; s->tlb_imask = 0; s->tlb_pcom = 0; s->tlb_tcnfg = 0; s->tlb_pdir_base = 0; for (i = 0; i < ELROY_NUM; i++) { elroy_reset(DEVICE(s->elroy[i])); } } static void astro_init(Object *obj) { } static void astro_realize(DeviceState *obj, Error **errp) { AstroState *s = ASTRO_CHIP(obj); SysBusDevice *sbd = SYS_BUS_DEVICE(obj); int i; memory_region_init_io(&s->this_mem, OBJECT(s), &astro_chip_ops, s, "astro", 0x40000); sysbus_init_mmio(sbd, &s->this_mem); /* Host memory as seen from Elroys PCI side, via the IOMMU. */ memory_region_init_iommu(&s->iommu, sizeof(s->iommu), TYPE_ASTRO_IOMMU_MEMORY_REGION, OBJECT(s), "iommu-astro", UINT64_MAX); address_space_init(&s->iommu_as, MEMORY_REGION(&s->iommu), "bm-pci"); /* Create Elroys (PCI host bus chips). */ for (i = 0; i < ELROY_NUM; i++) { static const int elroy_hpa_offsets[ELROY_NUM] = { 0x30000, 0x32000, 0x38000, 0x3c000 }; static const char elroy_rope_nr[ELROY_NUM] = { 0, 1, 4, 6 }; /* busnum path, e.g. [10:6] */ int addr_offset; ElroyState *elroy; hwaddr map_addr; uint64_t map_size; int rope; addr_offset = elroy_hpa_offsets[i]; rope = elroy_rope_nr[i]; elroy = elroy_init(i); s->elroy[i] = elroy; elroy->hpa = ASTRO_HPA + addr_offset; elroy->pci_bus_num = i; elroy->astro = s; /* * NOTE: we only allow PCI devices on first Elroy for now. * SeaBIOS will not find devices on the other busses. */ if (i > 0) { qbus_mark_full(&PCI_HOST_BRIDGE(elroy)->bus->qbus); } /* map elroy config addresses into Astro space */ memory_region_add_subregion(&s->this_mem, addr_offset, &elroy->this_mem); /* LMMIO */ elroy->mmio_base[(0x0200 - 0x200) / 8] = 0xf0000001; elroy->mmio_base[(0x0208 - 0x200) / 8] = 0xf8000000; /* GMMIO */ elroy->mmio_base[(0x0210 - 0x200) / 8] = 0x000000f800000001; elroy->mmio_base[(0x0218 - 0x200) / 8] = 0x000000ff80000000; /* WLMMIO */ elroy->mmio_base[(0x0220 - 0x200) / 8] = 0xf0000001; elroy->mmio_base[(0x0228 - 0x200) / 8] = 0xf0000000; /* WGMMIO */ elroy->mmio_base[(0x0230 - 0x200) / 8] = 0x000000f800000001; elroy->mmio_base[(0x0238 - 0x200) / 8] = 0x000000fc00000000; /* IOS_BASE */ map_size = IOS_DIST_BASE_SIZE / ROPES_PER_IOC; elroy->mmio_base[(0x0240 - 0x200) / 8] = rope * map_size | 0x01; elroy->mmio_base[(0x0248 - 0x200) / 8] = 0x0000e000; /* map elroys mmio */ map_size = LMMIO_DIST_BASE_SIZE / ROPES_PER_IOC; map_addr = F_EXTEND(LMMIO_DIST_BASE_ADDR + rope * map_size); memory_region_init_alias(&elroy->pci_mmio_alias, OBJECT(elroy), "pci-mmio-alias", &elroy->pci_mmio, (uint32_t) map_addr, map_size); memory_region_add_subregion(get_system_memory(), map_addr, &elroy->pci_mmio_alias); /* map elroys io */ map_size = IOS_DIST_BASE_SIZE / ROPES_PER_IOC; map_addr = F_EXTEND(IOS_DIST_BASE_ADDR + rope * map_size); memory_region_add_subregion(get_system_memory(), map_addr, &elroy->pci_io); /* Host memory as seen from the PCI side, via the IOMMU. */ pci_setup_iommu(PCI_HOST_BRIDGE(elroy)->bus, &elroy_pcihost_iommu_ops, elroy); } } static void astro_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); device_class_set_legacy_reset(dc, astro_reset); dc->vmsd = &vmstate_astro; dc->realize = astro_realize; /* * astro with elroys are hard part of the newer PA2.0 machines and can not * be created without that hardware */ dc->user_creatable = false; } static const TypeInfo astro_chip_info = { .name = TYPE_ASTRO_CHIP, .parent = TYPE_SYS_BUS_DEVICE, .instance_init = astro_init, .instance_size = sizeof(AstroState), .class_init = astro_class_init, }; static void astro_iommu_memory_region_class_init(ObjectClass *klass, void *data) { IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass); imrc->translate = astro_translate_iommu; } static const TypeInfo astro_iommu_memory_region_info = { .parent = TYPE_IOMMU_MEMORY_REGION, .name = TYPE_ASTRO_IOMMU_MEMORY_REGION, .class_init = astro_iommu_memory_region_class_init, }; static void astro_register_types(void) { type_register_static(&astro_chip_info); type_register_static(&astro_iommu_memory_region_info); } type_init(astro_register_types)