diff options
Diffstat (limited to 'src/hw/pci-host/uninorth.c')
| -rw-r--r-- | src/hw/pci-host/uninorth.c | 523 |
1 files changed, 523 insertions, 0 deletions
diff --git a/src/hw/pci-host/uninorth.c b/src/hw/pci-host/uninorth.c new file mode 100644 index 0000000..215b64f --- /dev/null +++ b/src/hw/pci-host/uninorth.c @@ -0,0 +1,523 @@ +/* + * QEMU Uninorth PCI host (for all Mac99 and newer machines) + * + * Copyright (c) 2006 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include "hw/hw.h" +#include "hw/ppc/mac.h" +#include "hw/pci/pci.h" +#include "hw/pci/pci_host.h" + +/* debug UniNorth */ +//#define DEBUG_UNIN + +#ifdef DEBUG_UNIN +#define UNIN_DPRINTF(fmt, ...) \ + do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0) +#else +#define UNIN_DPRINTF(fmt, ...) +#endif + +static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e }; + +#define TYPE_UNI_NORTH_PCI_HOST_BRIDGE "uni-north-pci-pcihost" +#define TYPE_UNI_NORTH_AGP_HOST_BRIDGE "uni-north-agp-pcihost" +#define TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE "uni-north-internal-pci-pcihost" +#define TYPE_U3_AGP_HOST_BRIDGE "u3-agp-pcihost" + +#define UNI_NORTH_PCI_HOST_BRIDGE(obj) \ + OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_PCI_HOST_BRIDGE) +#define UNI_NORTH_AGP_HOST_BRIDGE(obj) \ + OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_AGP_HOST_BRIDGE) +#define UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(obj) \ + OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE) +#define U3_AGP_HOST_BRIDGE(obj) \ + OBJECT_CHECK(UNINState, (obj), TYPE_U3_AGP_HOST_BRIDGE) + +typedef struct UNINState { + PCIHostState parent_obj; + + MemoryRegion pci_mmio; + MemoryRegion pci_hole; +} UNINState; + +static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num) +{ + int retval; + int devfn = pci_dev->devfn & 0x00FFFFFF; + + retval = (((devfn >> 11) & 0x1F) + irq_num) & 3; + + return retval; +} + +static void pci_unin_set_irq(void *opaque, int irq_num, int level) +{ + qemu_irq *pic = opaque; + + UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__, + unin_irq_line[irq_num], level); + qemu_set_irq(pic[unin_irq_line[irq_num]], level); +} + +static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr) +{ + uint32_t retval; + + if (reg & (1u << 31)) { + /* XXX OpenBIOS compatibility hack */ + retval = reg | (addr & 3); + } else if (reg & 1) { + /* CFA1 style */ + retval = (reg & ~7u) | (addr & 7); + } else { + uint32_t slot, func; + + /* Grab CFA0 style values */ + slot = ctz32(reg & 0xfffff800); + if (slot == 32) { + slot = -1; /* XXX: should this be 0? */ + } + func = (reg >> 8) & 7; + + /* ... and then convert them to x86 format */ + /* config pointer */ + retval = (reg & (0xff - 7)) | (addr & 7); + /* slot */ + retval |= slot << 11; + /* fn */ + retval |= func << 8; + } + + + UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n", + reg, addr, retval); + + return retval; +} + +static void unin_data_write(void *opaque, hwaddr addr, + uint64_t val, unsigned len) +{ + UNINState *s = opaque; + PCIHostState *phb = PCI_HOST_BRIDGE(s); + UNIN_DPRINTF("write addr %" TARGET_FMT_plx " len %d val %"PRIx64"\n", + addr, len, val); + pci_data_write(phb->bus, + unin_get_config_reg(phb->config_reg, addr), + val, len); +} + +static uint64_t unin_data_read(void *opaque, hwaddr addr, + unsigned len) +{ + UNINState *s = opaque; + PCIHostState *phb = PCI_HOST_BRIDGE(s); + uint32_t val; + + val = pci_data_read(phb->bus, + unin_get_config_reg(phb->config_reg, addr), + len); + UNIN_DPRINTF("read addr %" TARGET_FMT_plx " len %d val %x\n", + addr, len, val); + return val; +} + +static const MemoryRegionOps unin_data_ops = { + .read = unin_data_read, + .write = unin_data_write, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static int pci_unin_main_init_device(SysBusDevice *dev) +{ + PCIHostState *h; + + /* Use values found on a real PowerMac */ + /* Uninorth main bus */ + h = PCI_HOST_BRIDGE(dev); + + memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops, + dev, "pci-conf-idx", 0x1000); + memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev, + "pci-conf-data", 0x1000); + sysbus_init_mmio(dev, &h->conf_mem); + sysbus_init_mmio(dev, &h->data_mem); + + return 0; +} + + +static int pci_u3_agp_init_device(SysBusDevice *dev) +{ + PCIHostState *h; + + /* Uninorth U3 AGP bus */ + h = PCI_HOST_BRIDGE(dev); + + memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops, + dev, "pci-conf-idx", 0x1000); + memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev, + "pci-conf-data", 0x1000); + sysbus_init_mmio(dev, &h->conf_mem); + sysbus_init_mmio(dev, &h->data_mem); + + return 0; +} + +static int pci_unin_agp_init_device(SysBusDevice *dev) +{ + PCIHostState *h; + + /* Uninorth AGP bus */ + h = PCI_HOST_BRIDGE(dev); + + memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops, + dev, "pci-conf-idx", 0x1000); + memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops, + dev, "pci-conf-data", 0x1000); + sysbus_init_mmio(dev, &h->conf_mem); + sysbus_init_mmio(dev, &h->data_mem); + return 0; +} + +static int pci_unin_internal_init_device(SysBusDevice *dev) +{ + PCIHostState *h; + + /* Uninorth internal bus */ + h = PCI_HOST_BRIDGE(dev); + + memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops, + dev, "pci-conf-idx", 0x1000); + memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops, + dev, "pci-conf-data", 0x1000); + sysbus_init_mmio(dev, &h->conf_mem); + sysbus_init_mmio(dev, &h->data_mem); + return 0; +} + +PCIBus *pci_pmac_init(qemu_irq *pic, + MemoryRegion *address_space_mem, + MemoryRegion *address_space_io) +{ + DeviceState *dev; + SysBusDevice *s; + PCIHostState *h; + UNINState *d; + + /* Use values found on a real PowerMac */ + /* Uninorth main bus */ + dev = qdev_create(NULL, TYPE_UNI_NORTH_PCI_HOST_BRIDGE); + qdev_init_nofail(dev); + s = SYS_BUS_DEVICE(dev); + h = PCI_HOST_BRIDGE(s); + d = UNI_NORTH_PCI_HOST_BRIDGE(dev); + memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL); + memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio, + 0x80000000ULL, 0x10000000ULL); + memory_region_add_subregion(address_space_mem, 0x80000000ULL, + &d->pci_hole); + + h->bus = pci_register_bus(dev, NULL, + pci_unin_set_irq, pci_unin_map_irq, + pic, + &d->pci_mmio, + address_space_io, + PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS); + +#if 0 + pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north"); +#endif + + sysbus_mmio_map(s, 0, 0xf2800000); + sysbus_mmio_map(s, 1, 0xf2c00000); + + /* DEC 21154 bridge */ +#if 0 + /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */ + pci_create_simple(h->bus, PCI_DEVFN(12, 0), "dec-21154"); +#endif + + /* Uninorth AGP bus */ + pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-agp"); + dev = qdev_create(NULL, TYPE_UNI_NORTH_AGP_HOST_BRIDGE); + qdev_init_nofail(dev); + s = SYS_BUS_DEVICE(dev); + sysbus_mmio_map(s, 0, 0xf0800000); + sysbus_mmio_map(s, 1, 0xf0c00000); + + /* Uninorth internal bus */ +#if 0 + /* XXX: not needed for now */ + pci_create_simple(h->bus, PCI_DEVFN(14, 0), + "uni-north-internal-pci"); + dev = qdev_create(NULL, TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE); + qdev_init_nofail(dev); + s = SYS_BUS_DEVICE(dev); + sysbus_mmio_map(s, 0, 0xf4800000); + sysbus_mmio_map(s, 1, 0xf4c00000); +#endif + + return h->bus; +} + +PCIBus *pci_pmac_u3_init(qemu_irq *pic, + MemoryRegion *address_space_mem, + MemoryRegion *address_space_io) +{ + DeviceState *dev; + SysBusDevice *s; + PCIHostState *h; + UNINState *d; + + /* Uninorth AGP bus */ + + dev = qdev_create(NULL, TYPE_U3_AGP_HOST_BRIDGE); + qdev_init_nofail(dev); + s = SYS_BUS_DEVICE(dev); + h = PCI_HOST_BRIDGE(dev); + d = U3_AGP_HOST_BRIDGE(dev); + + memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL); + memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio, + 0x80000000ULL, 0x70000000ULL); + memory_region_add_subregion(address_space_mem, 0x80000000ULL, + &d->pci_hole); + + h->bus = pci_register_bus(dev, NULL, + pci_unin_set_irq, pci_unin_map_irq, + pic, + &d->pci_mmio, + address_space_io, + PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS); + + sysbus_mmio_map(s, 0, 0xf0800000); + sysbus_mmio_map(s, 1, 0xf0c00000); + + pci_create_simple(h->bus, 11 << 3, "u3-agp"); + + return h->bus; +} + +static void unin_main_pci_host_realize(PCIDevice *d, Error **errp) +{ + d->config[0x0C] = 0x08; // cache_line_size + d->config[0x0D] = 0x10; // latency_timer + d->config[0x34] = 0x00; // capabilities_pointer +} + +static void unin_agp_pci_host_realize(PCIDevice *d, Error **errp) +{ + d->config[0x0C] = 0x08; // cache_line_size + d->config[0x0D] = 0x10; // latency_timer + // d->config[0x34] = 0x80; // capabilities_pointer +} + +static void u3_agp_pci_host_realize(PCIDevice *d, Error **errp) +{ + /* cache line size */ + d->config[0x0C] = 0x08; + /* latency timer */ + d->config[0x0D] = 0x10; +} + +static void unin_internal_pci_host_realize(PCIDevice *d, Error **errp) +{ + d->config[0x0C] = 0x08; // cache_line_size + d->config[0x0D] = 0x10; // latency_timer + d->config[0x34] = 0x00; // capabilities_pointer +} + +static void unin_main_pci_host_class_init(ObjectClass *klass, void *data) +{ + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + k->realize = unin_main_pci_host_realize; + k->vendor_id = PCI_VENDOR_ID_APPLE; + k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI; + k->revision = 0x00; + k->class_id = PCI_CLASS_BRIDGE_HOST; + /* + * PCI-facing part of the host bridge, not usable without the + * host-facing part, which can't be device_add'ed, yet. + */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo unin_main_pci_host_info = { + .name = "uni-north-pci", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIDevice), + .class_init = unin_main_pci_host_class_init, +}; + +static void u3_agp_pci_host_class_init(ObjectClass *klass, void *data) +{ + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + k->realize = u3_agp_pci_host_realize; + k->vendor_id = PCI_VENDOR_ID_APPLE; + k->device_id = PCI_DEVICE_ID_APPLE_U3_AGP; + k->revision = 0x00; + k->class_id = PCI_CLASS_BRIDGE_HOST; + /* + * PCI-facing part of the host bridge, not usable without the + * host-facing part, which can't be device_add'ed, yet. + */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo u3_agp_pci_host_info = { + .name = "u3-agp", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIDevice), + .class_init = u3_agp_pci_host_class_init, +}; + +static void unin_agp_pci_host_class_init(ObjectClass *klass, void *data) +{ + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + k->realize = unin_agp_pci_host_realize; + k->vendor_id = PCI_VENDOR_ID_APPLE; + k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP; + k->revision = 0x00; + k->class_id = PCI_CLASS_BRIDGE_HOST; + /* + * PCI-facing part of the host bridge, not usable without the + * host-facing part, which can't be device_add'ed, yet. + */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo unin_agp_pci_host_info = { + .name = "uni-north-agp", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIDevice), + .class_init = unin_agp_pci_host_class_init, +}; + +static void unin_internal_pci_host_class_init(ObjectClass *klass, void *data) +{ + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + k->realize = unin_internal_pci_host_realize; + k->vendor_id = PCI_VENDOR_ID_APPLE; + k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI; + k->revision = 0x00; + k->class_id = PCI_CLASS_BRIDGE_HOST; + /* + * PCI-facing part of the host bridge, not usable without the + * host-facing part, which can't be device_add'ed, yet. + */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo unin_internal_pci_host_info = { + .name = "uni-north-internal-pci", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIDevice), + .class_init = unin_internal_pci_host_class_init, +}; + +static void pci_unin_main_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + sbc->init = pci_unin_main_init_device; + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); +} + +static const TypeInfo pci_unin_main_info = { + .name = TYPE_UNI_NORTH_PCI_HOST_BRIDGE, + .parent = TYPE_PCI_HOST_BRIDGE, + .instance_size = sizeof(UNINState), + .class_init = pci_unin_main_class_init, +}; + +static void pci_u3_agp_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + sbc->init = pci_u3_agp_init_device; + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); +} + +static const TypeInfo pci_u3_agp_info = { + .name = TYPE_U3_AGP_HOST_BRIDGE, + .parent = TYPE_PCI_HOST_BRIDGE, + .instance_size = sizeof(UNINState), + .class_init = pci_u3_agp_class_init, +}; + +static void pci_unin_agp_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + sbc->init = pci_unin_agp_init_device; + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); +} + +static const TypeInfo pci_unin_agp_info = { + .name = TYPE_UNI_NORTH_AGP_HOST_BRIDGE, + .parent = TYPE_PCI_HOST_BRIDGE, + .instance_size = sizeof(UNINState), + .class_init = pci_unin_agp_class_init, +}; + +static void pci_unin_internal_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + sbc->init = pci_unin_internal_init_device; + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); +} + +static const TypeInfo pci_unin_internal_info = { + .name = TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE, + .parent = TYPE_PCI_HOST_BRIDGE, + .instance_size = sizeof(UNINState), + .class_init = pci_unin_internal_class_init, +}; + +static void unin_register_types(void) +{ + type_register_static(&unin_main_pci_host_info); + type_register_static(&u3_agp_pci_host_info); + type_register_static(&unin_agp_pci_host_info); + type_register_static(&unin_internal_pci_host_info); + + type_register_static(&pci_unin_main_info); + type_register_static(&pci_u3_agp_info); + type_register_static(&pci_unin_agp_info); + type_register_static(&pci_unin_internal_info); +} + +type_init(unin_register_types) |
