#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 (not implemented). */
+ NVRAM */
static int dbdma_mem_index;
static int cuda_mem_index;
-static int ide0_mem_index;
-static int ide1_mem_index;
-static int openpic_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 */
&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);
- cpu_register_physical_memory(addr + 0x1f000, 0x1000, ide0_mem_index);
- cpu_register_physical_memory(addr + 0x20000, 0x1000, ide1_mem_index);
- cpu_register_physical_memory(addr + 0x40000, 0x40000, openpic_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)
+static void macio_init(PCIBus *bus, int device_id)
{
PCIDevice *d;
in PearPC */
d->config[0x00] = 0x6b; // vendor_id
d->config[0x01] = 0x10;
- d->config[0x02] = 0x22;
- d->config[0x03] = 0x00;
+ 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
PCI_ADDRESS_SPACE_MEM, macio_map);
}
-/* PowerPC PREP hardware initialisation */
-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)
+/* 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)
{
char buf[1024];
- openpic_t *openpic;
+ SetIRQFunc *set_irq;
+ void *pic;
m48t59_t *nvram;
- int PPC_io_memory;
- int ret, linux_boot, i;
- unsigned long bios_offset;
+ 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);
/* allocate and load BIOS */
bios_offset = ram_size + vga_ram_size;
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
- ret = load_image(buf, phys_ram_base + bios_offset);
- if (ret != BIOS_SIZE) {
- fprintf(stderr, "qemu: could not load PPC PREP bios '%s'\n", buf);
+ 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);
}
- cpu_register_physical_memory((uint32_t)(-BIOS_SIZE),
- BIOS_SIZE, bios_offset | IO_MEM_ROM);
- cpu_single_env->nip = 0xfffffffc;
-
+ 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 */
initrd_size = 0;
}
/* Register CPU as a 74x/75x */
- cpu_ppc_register(cpu_single_env, 0x00080000);
+ /* 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(cpu_single_env, "Unable to find PowerPC CPU definition\n");
+ }
+ cpu_ppc_register(cpu_single_env, def);
+
/* Set time-base frequency to 100 Mhz */
cpu_ppc_tb_init(cpu_single_env, 100UL * 1000UL * 1000UL);
- 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);
-
- /* init basic PC hardware */
- vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size,
- vga_ram_size);
- openpic = openpic_init(NULL, &openpic_mem_index, 1);
- pci_pmac_set_openpic(pci_bus, openpic);
-
- /* XXX: suppress that */
- pic_init();
-
- /* XXX: use Mac Serial port */
- serial_init(0x3f8, 4, serial_hds[0]);
+ cpu_single_env->osi_call = vga_osi_call;
+
+ 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(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);
+ }
- for(i = 0; i < nb_nics; i++) {
- pci_ne2000_init(pci_bus, &nd_table[i]);
+ macio_init(pci_bus, 0x0017);
+
+ nvram = m48t59_init(8, 0xFFF04000, 0x0074, NVRAM_SIZE);
+
+ 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(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);
+
+ arch_name = "MAC99";
}
-
- ide0_mem_index = pmac_ide_init(&bs_table[0], openpic, 0x13);
- ide1_mem_index = pmac_ide_init(&bs_table[2], openpic, 0x14);
-
- /* cuda also initialize ADB */
- cuda_mem_index = cuda_init(openpic, 0x19);
-
- adb_kbd_init(&adb_bus);
- adb_mouse_init(&adb_bus);
-
- macio_init(pci_bus);
-
- nvram = m48t59_init(8, 0xFFF04000, 0x0074, NVRAM_SIZE);
if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
graphic_depth = 15;
- PPC_NVRAM_set_params(nvram, NVRAM_SIZE, "CHRP", ram_size, boot_device,
+ PPC_NVRAM_set_params(nvram, NVRAM_SIZE, arch_name, ram_size, boot_device,
kernel_base, kernel_size,
kernel_cmdline,
initrd_base, initrd_size,
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,
+};
projects / qemu / blobdiff