/* * 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 PPC_io_memory, 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; pci_bus = pci_grackle_init(0xfec00000); /* Register 2 MB of ISA IO space */ PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write, NULL); cpu_register_physical_memory(0xfe000000, 0x00200000, PPC_io_memory); /* init basic PC hardware */ vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size, vga_ram_size, vga_bios_offset, vga_bios_size); pic = heathrow_pic_init(&heathrow_pic_mem_index); set_irq = heathrow_pic_set_irq; pci_set_pic(pci_bus, set_irq, pic); /* 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]); } 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; pci_bus = pci_pmac_init(); /* Register 8 MB of ISA IO space */ PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write, NULL); cpu_register_physical_memory(0xF2000000, 0x00800000, PPC_io_memory); /* UniN init */ unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL); cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory); /* init basic PC hardware */ vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size, vga_ram_size, vga_bios_offset, vga_bios_size); pic = openpic_init(NULL, &openpic_mem_index, 1); set_irq = openpic_set_irq; pci_set_pic(pci_bus, set_irq, pic); /* 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 (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, };