/* * 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.h" #include "ppc_mac.h" #include "pci.h" #include "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 }; typedef struct UNINState { SysBusDevice busdev; PCIHostState host_state; ReadWriteHandler data_handler; } 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 void pci_unin_save(QEMUFile* f, void *opaque) { PCIDevice *d = opaque; pci_device_save(d, f); } static int pci_unin_load(QEMUFile* f, void *opaque, int version_id) { PCIDevice *d = opaque; if (version_id != 1) return -EINVAL; return pci_device_load(d, f); } static void pci_unin_reset(void *opaque) { } 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 = ffs(reg & 0xfffff800) - 1; 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(ReadWriteHandler *handler, pcibus_t addr, uint32_t val, int len) { UNINState *s = container_of(handler, UNINState, data_handler); #ifdef TARGET_WORDS_BIGENDIAN val = qemu_bswap_len(val, len); #endif UNIN_DPRINTF("write addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val); pci_data_write(s->host_state.bus, unin_get_config_reg(s->host_state.config_reg, addr), val, len); } static uint32_t unin_data_read(ReadWriteHandler *handler, pcibus_t addr, int len) { UNINState *s = container_of(handler, UNINState, data_handler); uint32_t val; val = pci_data_read(s->host_state.bus, unin_get_config_reg(s->host_state.config_reg, addr), len); UNIN_DPRINTF("read addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val); #ifdef TARGET_WORDS_BIGENDIAN val = qemu_bswap_len(val, len); #endif return val; } static int pci_unin_main_init_device(SysBusDevice *dev) { UNINState *s; int pci_mem_config, pci_mem_data; /* Use values found on a real PowerMac */ /* Uninorth main bus */ s = FROM_SYSBUS(UNINState, dev); pci_mem_config = pci_host_conf_register_mmio(&s->host_state); s->data_handler.read = unin_data_read; s->data_handler.write = unin_data_write; pci_mem_data = cpu_register_io_memory_simple(&s->data_handler); sysbus_init_mmio(dev, 0x1000, pci_mem_config); sysbus_init_mmio(dev, 0x1000, pci_mem_data); register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state); qemu_register_reset(pci_unin_reset, &s->host_state); return 0; } static int pci_u3_agp_init_device(SysBusDevice *dev) { UNINState *s; int pci_mem_config, pci_mem_data; /* Uninorth U3 AGP bus */ s = FROM_SYSBUS(UNINState, dev); pci_mem_config = pci_host_conf_register_mmio(&s->host_state); s->data_handler.read = unin_data_read; s->data_handler.write = unin_data_write; pci_mem_data = cpu_register_io_memory_simple(&s->data_handler); sysbus_init_mmio(dev, 0x1000, pci_mem_config); sysbus_init_mmio(dev, 0x1000, pci_mem_data); register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state); qemu_register_reset(pci_unin_reset, &s->host_state); return 0; } static int pci_unin_agp_init_device(SysBusDevice *dev) { UNINState *s; int pci_mem_config, pci_mem_data; /* Uninorth AGP bus */ s = FROM_SYSBUS(UNINState, dev); pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state); pci_mem_data = pci_host_data_register_mmio(&s->host_state); sysbus_init_mmio(dev, 0x1000, pci_mem_config); sysbus_init_mmio(dev, 0x1000, pci_mem_data); return 0; } static int pci_unin_internal_init_device(SysBusDevice *dev) { UNINState *s; int pci_mem_config, pci_mem_data; /* Uninorth internal bus */ s = FROM_SYSBUS(UNINState, dev); pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state); pci_mem_data = pci_host_data_register_mmio(&s->host_state); sysbus_init_mmio(dev, 0x1000, pci_mem_config); sysbus_init_mmio(dev, 0x1000, pci_mem_data); return 0; } PCIBus *pci_pmac_init(qemu_irq *pic) { DeviceState *dev; SysBusDevice *s; UNINState *d; /* Use values found on a real PowerMac */ /* Uninorth main bus */ dev = qdev_create(NULL, "uni-north"); qdev_init_nofail(dev); s = sysbus_from_qdev(dev); d = FROM_SYSBUS(UNINState, s); d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci", pci_unin_set_irq, pci_unin_map_irq, pic, 11 << 3, 4); #if 0 pci_create_simple(d->host_state.bus, 11 << 3, "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(d->host_state.bus, 12 << 3, "dec-21154"); #endif /* Uninorth AGP bus */ pci_create_simple(d->host_state.bus, 11 << 3, "uni-north-agp"); dev = qdev_create(NULL, "uni-north-agp"); qdev_init_nofail(dev); s = sysbus_from_qdev(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(d->host_state.bus, 14 << 3, "uni-north-pci"); dev = qdev_create(NULL, "uni-north-pci"); qdev_init_nofail(dev); s = sysbus_from_qdev(dev); sysbus_mmio_map(s, 0, 0xf4800000); sysbus_mmio_map(s, 1, 0xf4c00000); #endif return d->host_state.bus; } PCIBus *pci_pmac_u3_init(qemu_irq *pic) { DeviceState *dev; SysBusDevice *s; UNINState *d; /* Uninorth AGP bus */ dev = qdev_create(NULL, "u3-agp"); qdev_init_nofail(dev); s = sysbus_from_qdev(dev); d = FROM_SYSBUS(UNINState, s); d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci", pci_unin_set_irq, pci_unin_map_irq, pic, 11 << 3, 4); sysbus_mmio_map(s, 0, 0xf0800000); sysbus_mmio_map(s, 1, 0xf0c00000); pci_create_simple(d->host_state.bus, 11 << 3, "u3-agp"); return d->host_state.bus; } static int unin_main_pci_host_init(PCIDevice *d) { pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI); d->config[0x08] = 0x00; // revision pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST); d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x10; // latency_timer d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type d->config[0x34] = 0x00; // capabilities_pointer return 0; } static int unin_agp_pci_host_init(PCIDevice *d) { pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP); d->config[0x08] = 0x00; // revision pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST); d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x10; // latency_timer d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type // d->config[0x34] = 0x80; // capabilities_pointer return 0; } static int u3_agp_pci_host_init(PCIDevice *d) { pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_U3_AGP); /* revision */ d->config[0x08] = 0x00; pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST); /* cache line size */ d->config[0x0C] = 0x08; /* latency timer */ d->config[0x0D] = 0x10; d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; return 0; } static int unin_internal_pci_host_init(PCIDevice *d) { pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI); d->config[0x08] = 0x00; // revision pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST); d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x10; // latency_timer d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type d->config[0x34] = 0x00; // capabilities_pointer return 0; } static PCIDeviceInfo unin_main_pci_host_info = { .qdev.name = "uni-north", .qdev.size = sizeof(PCIDevice), .init = unin_main_pci_host_init, }; static PCIDeviceInfo u3_agp_pci_host_info = { .qdev.name = "u3-agp", .qdev.size = sizeof(PCIDevice), .init = u3_agp_pci_host_init, }; static PCIDeviceInfo unin_agp_pci_host_info = { .qdev.name = "uni-north-agp", .qdev.size = sizeof(PCIDevice), .init = unin_agp_pci_host_init, }; static PCIDeviceInfo unin_internal_pci_host_info = { .qdev.name = "uni-north-pci", .qdev.size = sizeof(PCIDevice), .init = unin_internal_pci_host_init, }; static void unin_register_devices(void) { sysbus_register_dev("uni-north", sizeof(UNINState), pci_unin_main_init_device); pci_qdev_register(&unin_main_pci_host_info); sysbus_register_dev("u3-agp", sizeof(UNINState), pci_u3_agp_init_device); pci_qdev_register(&u3_agp_pci_host_info); sysbus_register_dev("uni-north-agp", sizeof(UNINState), pci_unin_agp_init_device); pci_qdev_register(&unin_agp_pci_host_info); sysbus_register_dev("uni-north-pci", sizeof(UNINState), pci_unin_internal_init_device); pci_qdev_register(&unin_internal_pci_host_info); } device_init(unin_register_devices)