| /* |
| * QEMU PPC CHRP/PMAC hardware System Emulator |
| * |
| * Copyright (c) 2004 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 "vl.h" |
| |
| #define BIOS_FILENAME "ppc_rom.bin" |
| #define VGABIOS_FILENAME "video.x" |
| #define NVRAM_SIZE 0x2000 |
| |
| #define KERNEL_LOAD_ADDR 0x01000000 |
| #define INITRD_LOAD_ADDR 0x01800000 |
| |
| /* MacIO devices (mapped inside the MacIO address space): CUDA, DBDMA, |
| NVRAM */ |
| |
| static int dbdma_mem_index; |
| static int cuda_mem_index; |
| static int ide0_mem_index = -1; |
| static int ide1_mem_index = -1; |
| static int openpic_mem_index = -1; |
| static int heathrow_pic_mem_index = -1; |
| static int macio_nvram_mem_index = -1; |
| |
| /* DBDMA: currently no op - should suffice right now */ |
| |
| static void dbdma_writeb (void *opaque, target_phys_addr_t addr, uint32_t value) |
| { |
| printf("%s: 0x%08x <= 0x%08x\n", __func__, addr, value); |
| } |
| |
| static void dbdma_writew (void *opaque, target_phys_addr_t addr, uint32_t value) |
| { |
| } |
| |
| static void dbdma_writel (void *opaque, target_phys_addr_t addr, uint32_t value) |
| { |
| } |
| |
| static uint32_t dbdma_readb (void *opaque, target_phys_addr_t addr) |
| { |
| printf("%s: 0x%08x => 0x00000000\n", __func__, addr); |
| return 0; |
| } |
| |
| static uint32_t dbdma_readw (void *opaque, target_phys_addr_t addr) |
| { |
| return 0; |
| } |
| |
| static uint32_t dbdma_readl (void *opaque, target_phys_addr_t addr) |
| { |
| return 0; |
| } |
| |
| static CPUWriteMemoryFunc *dbdma_write[] = { |
| &dbdma_writeb, |
| &dbdma_writew, |
| &dbdma_writel, |
| }; |
| |
| static CPUReadMemoryFunc *dbdma_read[] = { |
| &dbdma_readb, |
| &dbdma_readw, |
| &dbdma_readl, |
| }; |
| |
| /* macio style NVRAM device */ |
| typedef struct MacIONVRAMState { |
| uint8_t data[0x2000]; |
| } MacIONVRAMState; |
| |
| static void macio_nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t value) |
| { |
| MacIONVRAMState *s = opaque; |
| addr = (addr >> 4) & 0x1fff; |
| s->data[addr] = value; |
| // printf("macio_nvram_writeb %04x = %02x\n", addr, value); |
| } |
| |
| static uint32_t macio_nvram_readb (void *opaque, target_phys_addr_t addr) |
| { |
| MacIONVRAMState *s = opaque; |
| uint32_t value; |
| |
| addr = (addr >> 4) & 0x1fff; |
| value = s->data[addr]; |
| // printf("macio_nvram_readb %04x = %02x\n", addr, value); |
| return value; |
| } |
| |
| static CPUWriteMemoryFunc *macio_nvram_write[] = { |
| &macio_nvram_writeb, |
| &macio_nvram_writeb, |
| &macio_nvram_writeb, |
| }; |
| |
| static CPUReadMemoryFunc *macio_nvram_read[] = { |
| &macio_nvram_readb, |
| &macio_nvram_readb, |
| &macio_nvram_readb, |
| }; |
| |
| static MacIONVRAMState *macio_nvram_init(void) |
| { |
| MacIONVRAMState *s; |
| s = qemu_mallocz(sizeof(MacIONVRAMState)); |
| if (!s) |
| return NULL; |
| macio_nvram_mem_index = cpu_register_io_memory(0, macio_nvram_read, |
| macio_nvram_write, s); |
| return s; |
| } |
| |
| static void macio_map(PCIDevice *pci_dev, int region_num, |
| uint32_t addr, uint32_t size, int type) |
| { |
| if (heathrow_pic_mem_index >= 0) { |
| cpu_register_physical_memory(addr + 0x00000, 0x1000, |
| heathrow_pic_mem_index); |
| } |
| cpu_register_physical_memory(addr + 0x08000, 0x1000, dbdma_mem_index); |
| cpu_register_physical_memory(addr + 0x16000, 0x2000, cuda_mem_index); |
| if (ide0_mem_index >= 0) |
| cpu_register_physical_memory(addr + 0x1f000, 0x1000, ide0_mem_index); |
| if (ide1_mem_index >= 0) |
| cpu_register_physical_memory(addr + 0x20000, 0x1000, ide1_mem_index); |
| if (openpic_mem_index >= 0) { |
| cpu_register_physical_memory(addr + 0x40000, 0x40000, |
| openpic_mem_index); |
| } |
| if (macio_nvram_mem_index >= 0) |
| cpu_register_physical_memory(addr + 0x60000, 0x20000, macio_nvram_mem_index); |
| } |
| |
| static void macio_init(PCIBus *bus, int device_id) |
| { |
| PCIDevice *d; |
| |
| d = pci_register_device(bus, "macio", sizeof(PCIDevice), |
| -1, NULL, NULL); |
| /* Note: this code is strongly inspirated from the corresponding code |
| in PearPC */ |
| d->config[0x00] = 0x6b; // vendor_id |
| d->config[0x01] = 0x10; |
| d->config[0x02] = device_id; |
| d->config[0x03] = device_id >> 8; |
| |
| d->config[0x0a] = 0x00; // class_sub = pci2pci |
| d->config[0x0b] = 0xff; // class_base = bridge |
| d->config[0x0e] = 0x00; // header_type |
| |
| d->config[0x3d] = 0x01; // interrupt on pin 1 |
| |
| dbdma_mem_index = cpu_register_io_memory(0, dbdma_read, dbdma_write, NULL); |
| |
| pci_register_io_region(d, 0, 0x80000, |
| PCI_ADDRESS_SPACE_MEM, macio_map); |
| } |
| |
| /* UniN device */ |
| static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value) |
| { |
| } |
| |
| static uint32_t unin_readl (void *opaque, target_phys_addr_t addr) |
| { |
| return 0; |
| } |
| |
| static CPUWriteMemoryFunc *unin_write[] = { |
| &unin_writel, |
| &unin_writel, |
| &unin_writel, |
| }; |
| |
| static CPUReadMemoryFunc *unin_read[] = { |
| &unin_readl, |
| &unin_readl, |
| &unin_readl, |
| }; |
| |
| /* temporary frame buffer OSI calls for the video.x driver. The right |
| solution is to modify the driver to use VGA PCI I/Os */ |
| static int vga_osi_call(CPUState *env) |
| { |
| static int vga_vbl_enabled; |
| int linesize; |
| |
| // printf("osi_call R5=%d\n", env->gpr[5]); |
| |
| /* same handler as PearPC, coming from the original MOL video |
| driver. */ |
| switch(env->gpr[5]) { |
| case 4: |
| break; |
| case 28: /* set_vmode */ |
| if (env->gpr[6] != 1 || env->gpr[7] != 0) |
| env->gpr[3] = 1; |
| else |
| env->gpr[3] = 0; |
| break; |
| case 29: /* get_vmode_info */ |
| if (env->gpr[6] != 0) { |
| if (env->gpr[6] != 1 || env->gpr[7] != 0) { |
| env->gpr[3] = 1; |
| break; |
| } |
| } |
| env->gpr[3] = 0; |
| env->gpr[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */ |
| env->gpr[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */ |
| env->gpr[6] = (graphic_width << 16) | graphic_height; /* w, h */ |
| env->gpr[7] = 85 << 16; /* refresh rate */ |
| env->gpr[8] = (graphic_depth + 7) & ~7; /* depth (round to byte) */ |
| linesize = ((graphic_depth + 7) >> 3) * graphic_width; |
| linesize = (linesize + 3) & ~3; |
| env->gpr[9] = (linesize << 16) | 0; /* row_bytes, offset */ |
| break; |
| case 31: /* set_video power */ |
| env->gpr[3] = 0; |
| break; |
| case 39: /* video_ctrl */ |
| if (env->gpr[6] == 0 || env->gpr[6] == 1) |
| vga_vbl_enabled = env->gpr[6]; |
| env->gpr[3] = 0; |
| break; |
| case 47: |
| break; |
| case 59: /* set_color */ |
| /* R6 = index, R7 = RGB */ |
| env->gpr[3] = 0; |
| break; |
| case 64: /* get color */ |
| /* R6 = index */ |
| env->gpr[3] = 0; |
| break; |
| case 116: /* set hwcursor */ |
| /* R6 = x, R7 = y, R8 = visible, R9 = data */ |
| break; |
| default: |
| fprintf(stderr, "unsupported OSI call R5=%08x\n", env->gpr[5]); |
| break; |
| } |
| return 1; /* osi_call handled */ |
| } |
| |
| /* XXX: suppress that */ |
| static void pic_irq_request(void *opaque, int level) |
| { |
| } |
| |
| static uint8_t nvram_chksum(const uint8_t *buf, int n) |
| { |
| int sum, i; |
| sum = 0; |
| for(i = 0; i < n; i++) |
| sum += buf[i]; |
| return (sum & 0xff) + (sum >> 8); |
| } |
| |
| /* set a free Mac OS NVRAM partition */ |
| void pmac_format_nvram_partition(uint8_t *buf, int len) |
| { |
| char partition_name[12] = "wwwwwwwwwwww"; |
| |
| buf[0] = 0x7f; /* free partition magic */ |
| buf[1] = 0; /* checksum */ |
| buf[2] = len >> 8; |
| buf[3] = len; |
| memcpy(buf + 4, partition_name, 12); |
| buf[1] = nvram_chksum(buf, 16); |
| } |
| |
| /* PowerPC CHRP hardware initialisation */ |
| static void ppc_chrp_init(int ram_size, int vga_ram_size, int boot_device, |
| DisplayState *ds, const char **fd_filename, |
| int snapshot, |
| const char *kernel_filename, |
| const char *kernel_cmdline, |
| const char *initrd_filename, |
| int is_heathrow) |
| { |
| CPUState *env; |
| char buf[1024]; |
| SetIRQFunc *set_irq; |
| void *pic; |
| m48t59_t *nvram; |
| int unin_memory; |
| int linux_boot, i; |
| unsigned long bios_offset, vga_bios_offset; |
| uint32_t kernel_base, kernel_size, initrd_base, initrd_size; |
| ppc_def_t *def; |
| PCIBus *pci_bus; |
| const char *arch_name; |
| int vga_bios_size, bios_size; |
| |
| linux_boot = (kernel_filename != NULL); |
| |
| /* init CPUs */ |
| env = cpu_init(); |
| register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); |
| |
| /* Register CPU as a 74x/75x */ |
| /* XXX: CPU model (or PVR) should be provided on command line */ |
| // ppc_find_by_name("750gx", &def); // Linux boot OK |
| // ppc_find_by_name("750fx", &def); // Linux boot OK |
| /* Linux does not boot on 750cxe (and probably other 750cx based) |
| * because it assumes it has 8 IBAT & DBAT pairs as it only have 4. |
| */ |
| // ppc_find_by_name("750cxe", &def); |
| // ppc_find_by_name("750p", &def); |
| // ppc_find_by_name("740p", &def); |
| ppc_find_by_name("750", &def); |
| // ppc_find_by_name("740", &def); |
| // ppc_find_by_name("G3", &def); |
| // ppc_find_by_name("604r", &def); |
| // ppc_find_by_name("604e", &def); |
| // ppc_find_by_name("604", &def); |
| if (def == NULL) { |
| cpu_abort(env, "Unable to find PowerPC CPU definition\n"); |
| } |
| cpu_ppc_register(env, def); |
| |
| /* Set time-base frequency to 100 Mhz */ |
| cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); |
| |
| env->osi_call = vga_osi_call; |
| |
| /* allocate RAM */ |
| cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); |
| |
| /* allocate and load BIOS */ |
| bios_offset = ram_size + vga_ram_size; |
| snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); |
| bios_size = load_image(buf, phys_ram_base + bios_offset); |
| if (bios_size < 0 || bios_size > BIOS_SIZE) { |
| fprintf(stderr, "qemu: could not load PowerPC bios '%s'\n", buf); |
| exit(1); |
| } |
| bios_size = (bios_size + 0xfff) & ~0xfff; |
| cpu_register_physical_memory((uint32_t)(-bios_size), |
| bios_size, bios_offset | IO_MEM_ROM); |
| |
| /* allocate and load VGA BIOS */ |
| vga_bios_offset = bios_offset + bios_size; |
| snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); |
| vga_bios_size = load_image(buf, phys_ram_base + vga_bios_offset + 8); |
| if (vga_bios_size < 0) { |
| /* if no bios is present, we can still work */ |
| fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n", buf); |
| vga_bios_size = 0; |
| } else { |
| /* set a specific header (XXX: find real Apple format for NDRV |
| drivers) */ |
| phys_ram_base[vga_bios_offset] = 'N'; |
| phys_ram_base[vga_bios_offset + 1] = 'D'; |
| phys_ram_base[vga_bios_offset + 2] = 'R'; |
| phys_ram_base[vga_bios_offset + 3] = 'V'; |
| cpu_to_be32w((uint32_t *)(phys_ram_base + vga_bios_offset + 4), |
| vga_bios_size); |
| vga_bios_size += 8; |
| } |
| vga_bios_size = (vga_bios_size + 0xfff) & ~0xfff; |
| |
| if (linux_boot) { |
| kernel_base = KERNEL_LOAD_ADDR; |
| /* now we can load the kernel */ |
| kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base); |
| if (kernel_size < 0) { |
| fprintf(stderr, "qemu: could not load kernel '%s'\n", |
| kernel_filename); |
| exit(1); |
| } |
| /* load initrd */ |
| if (initrd_filename) { |
| initrd_base = INITRD_LOAD_ADDR; |
| initrd_size = load_image(initrd_filename, |
| phys_ram_base + initrd_base); |
| if (initrd_size < 0) { |
| fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", |
| initrd_filename); |
| exit(1); |
| } |
| } else { |
| initrd_base = 0; |
| initrd_size = 0; |
| } |
| boot_device = 'm'; |
| } else { |
| kernel_base = 0; |
| kernel_size = 0; |
| initrd_base = 0; |
| initrd_size = 0; |
| } |
| |
| if (is_heathrow) { |
| isa_mem_base = 0x80000000; |
| |
| /* Register 2 MB of ISA IO space */ |
| isa_mmio_init(0xfe000000, 0x00200000); |
| |
| /* init basic PC hardware */ |
| pic = heathrow_pic_init(&heathrow_pic_mem_index); |
| set_irq = heathrow_pic_set_irq; |
| pci_bus = pci_grackle_init(0xfec00000, pic); |
| pci_vga_init(pci_bus, ds, phys_ram_base + ram_size, |
| ram_size, vga_ram_size, |
| vga_bios_offset, vga_bios_size); |
| |
| /* XXX: suppress that */ |
| isa_pic = pic_init(pic_irq_request, NULL); |
| |
| /* XXX: use Mac Serial port */ |
| serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]); |
| |
| for(i = 0; i < nb_nics; i++) { |
| if (!nd_table[i].model) |
| nd_table[i].model = "ne2k_pci"; |
| pci_nic_init(pci_bus, &nd_table[i]); |
| } |
| |
| pci_cmd646_ide_init(pci_bus, &bs_table[0], 0); |
| |
| /* cuda also initialize ADB */ |
| cuda_mem_index = cuda_init(set_irq, pic, 0x12); |
| |
| adb_kbd_init(&adb_bus); |
| adb_mouse_init(&adb_bus); |
| |
| { |
| MacIONVRAMState *nvr; |
| nvr = macio_nvram_init(); |
| pmac_format_nvram_partition(nvr->data, 0x2000); |
| } |
| |
| macio_init(pci_bus, 0x0017); |
| |
| nvram = m48t59_init(8, 0xFFF04000, 0x0074, NVRAM_SIZE, 59); |
| |
| arch_name = "HEATHROW"; |
| } else { |
| isa_mem_base = 0x80000000; |
| |
| /* Register 8 MB of ISA IO space */ |
| isa_mmio_init(0xf2000000, 0x00800000); |
| |
| /* UniN init */ |
| unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL); |
| cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory); |
| |
| pic = openpic_init(NULL, &openpic_mem_index, 1, &env); |
| set_irq = openpic_set_irq; |
| pci_bus = pci_pmac_init(pic); |
| /* init basic PC hardware */ |
| pci_vga_init(pci_bus, ds, phys_ram_base + ram_size, |
| ram_size, vga_ram_size, |
| vga_bios_offset, vga_bios_size); |
| |
| /* XXX: suppress that */ |
| isa_pic = pic_init(pic_irq_request, NULL); |
| |
| /* XXX: use Mac Serial port */ |
| serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]); |
| |
| for(i = 0; i < nb_nics; i++) { |
| pci_ne2000_init(pci_bus, &nd_table[i]); |
| } |
| |
| #if 1 |
| ide0_mem_index = pmac_ide_init(&bs_table[0], set_irq, pic, 0x13); |
| ide1_mem_index = pmac_ide_init(&bs_table[2], set_irq, pic, 0x14); |
| #else |
| pci_cmd646_ide_init(pci_bus, &bs_table[0], 0); |
| #endif |
| /* cuda also initialize ADB */ |
| cuda_mem_index = cuda_init(set_irq, pic, 0x19); |
| |
| adb_kbd_init(&adb_bus); |
| adb_mouse_init(&adb_bus); |
| |
| macio_init(pci_bus, 0x0022); |
| |
| nvram = m48t59_init(8, 0xFFF04000, 0x0074, NVRAM_SIZE, 59); |
| |
| arch_name = "MAC99"; |
| } |
| |
| if (usb_enabled) { |
| usb_ohci_init(pci_bus, 3, -1); |
| } |
| |
| if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) |
| graphic_depth = 15; |
| |
| PPC_NVRAM_set_params(nvram, NVRAM_SIZE, arch_name, ram_size, boot_device, |
| kernel_base, kernel_size, |
| kernel_cmdline, |
| initrd_base, initrd_size, |
| /* XXX: need an option to load a NVRAM image */ |
| 0, |
| graphic_width, graphic_height, graphic_depth); |
| /* No PCI init: the BIOS will do it */ |
| |
| /* Special port to get debug messages from Open-Firmware */ |
| register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL); |
| } |
| |
| static void ppc_core99_init(int ram_size, int vga_ram_size, int boot_device, |
| DisplayState *ds, const char **fd_filename, |
| int snapshot, |
| const char *kernel_filename, |
| const char *kernel_cmdline, |
| const char *initrd_filename) |
| { |
| ppc_chrp_init(ram_size, vga_ram_size, boot_device, |
| ds, fd_filename, snapshot, |
| kernel_filename, kernel_cmdline, |
| initrd_filename, 0); |
| } |
| |
| static void ppc_heathrow_init(int ram_size, int vga_ram_size, int boot_device, |
| DisplayState *ds, const char **fd_filename, |
| int snapshot, |
| const char *kernel_filename, |
| const char *kernel_cmdline, |
| const char *initrd_filename) |
| { |
| ppc_chrp_init(ram_size, vga_ram_size, boot_device, |
| ds, fd_filename, snapshot, |
| kernel_filename, kernel_cmdline, |
| initrd_filename, 1); |
| } |
| |
| QEMUMachine core99_machine = { |
| "mac99", |
| "Mac99 based PowerMAC", |
| ppc_core99_init, |
| }; |
| |
| QEMUMachine heathrow_machine = { |
| "g3bw", |
| "Heathrow based PowerMAC", |
| ppc_heathrow_init, |
| }; |
