2 * QEMU OldWorld PowerMac (currently ~G3 B&W) hardware System Emulator
4 * Copyright (c) 2004-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
38 #define VGA_BIOS_SIZE 65536
39 #define CFG_ADDR 0xf0000510
47 /* temporary frame buffer OSI calls for the video.x driver. The right
48 solution is to modify the driver to use VGA PCI I/Os */
49 /* XXX: to be removed. This is no way related to emulation */
50 static int vga_osi_call (CPUState
*env
)
52 static int vga_vbl_enabled
;
55 // printf("osi_call R5=" REGX "\n", ppc_dump_gpr(env, 5));
57 /* same handler as PearPC, coming from the original MOL video
62 case 28: /* set_vmode */
63 if (env
->gpr
[6] != 1 || env
->gpr
[7] != 0)
68 case 29: /* get_vmode_info */
69 if (env
->gpr
[6] != 0) {
70 if (env
->gpr
[6] != 1 || env
->gpr
[7] != 0) {
76 env
->gpr
[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */
77 env
->gpr
[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */
78 env
->gpr
[6] = (graphic_width
<< 16) | graphic_height
; /* w, h */
79 env
->gpr
[7] = 85 << 16; /* refresh rate */
80 env
->gpr
[8] = (graphic_depth
+ 7) & ~7; /* depth (round to byte) */
81 linesize
= ((graphic_depth
+ 7) >> 3) * graphic_width
;
82 linesize
= (linesize
+ 3) & ~3;
83 env
->gpr
[9] = (linesize
<< 16) | 0; /* row_bytes, offset */
85 case 31: /* set_video power */
88 case 39: /* video_ctrl */
89 if (env
->gpr
[6] == 0 || env
->gpr
[6] == 1)
90 vga_vbl_enabled
= env
->gpr
[6];
95 case 59: /* set_color */
96 /* R6 = index, R7 = RGB */
99 case 64: /* get color */
103 case 116: /* set hwcursor */
104 /* R6 = x, R7 = y, R8 = visible, R9 = data */
107 fprintf(stderr
, "unsupported OSI call R5=" REGX
"\n",
108 ppc_dump_gpr(env
, 5));
112 return 1; /* osi_call handled */
115 static void ppc_heathrow_init (ram_addr_t ram_size
, int vga_ram_size
,
116 const char *boot_device
, DisplayState
*ds
,
117 const char *kernel_filename
,
118 const char *kernel_cmdline
,
119 const char *initrd_filename
,
120 const char *cpu_model
)
122 CPUState
*env
= NULL
, *envs
[MAX_CPUS
];
124 qemu_irq
*pic
, **heathrow_irqs
;
128 ram_addr_t ram_offset
, vga_ram_offset
, bios_offset
, vga_bios_offset
;
129 uint32_t kernel_base
, kernel_size
, initrd_base
, initrd_size
;
131 MacIONVRAMState
*nvr
;
132 int vga_bios_size
, bios_size
;
134 int pic_mem_index
, nvram_mem_index
, dbdma_mem_index
, cuda_mem_index
;
135 int ide_mem_index
[2];
137 BlockDriverState
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
141 linux_boot
= (kernel_filename
!= NULL
);
144 if (cpu_model
== NULL
)
146 for (i
= 0; i
< smp_cpus
; i
++) {
147 env
= cpu_init(cpu_model
);
149 fprintf(stderr
, "Unable to find PowerPC CPU definition\n");
152 /* Set time-base frequency to 100 Mhz */
153 cpu_ppc_tb_init(env
, 100UL * 1000UL * 1000UL);
154 env
->osi_call
= vga_osi_call
;
155 qemu_register_reset(&cpu_ppc_reset
, env
);
158 if (env
->nip
< 0xFFF80000) {
159 /* Special test for PowerPC 601:
160 * the boot vector is at 0xFFF00100, then we need a 1MB BIOS.
161 * But the NVRAM is located at 0xFFF04000...
163 cpu_abort(env
, "G3BW Mac hardware can not handle 1 MB BIOS\n");
167 ram_offset
= qemu_ram_alloc(ram_size
);
168 cpu_register_physical_memory(0, ram_size
, ram_offset
);
170 /* allocate VGA RAM */
171 vga_ram_offset
= qemu_ram_alloc(vga_ram_size
);
173 /* allocate and load BIOS */
174 bios_offset
= qemu_ram_alloc(BIOS_SIZE
);
175 if (bios_name
== NULL
)
176 bios_name
= PROM_FILENAME
;
177 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, bios_name
);
178 cpu_register_physical_memory(PROM_ADDR
, BIOS_SIZE
, bios_offset
| IO_MEM_ROM
);
180 /* Load OpenBIOS (ELF) */
181 bios_size
= load_elf(buf
, 0, NULL
, NULL
, NULL
);
182 if (bios_size
< 0 || bios_size
> BIOS_SIZE
) {
183 cpu_abort(env
, "qemu: could not load PowerPC bios '%s'\n", buf
);
187 /* allocate and load VGA BIOS */
188 vga_bios_offset
= qemu_ram_alloc(VGA_BIOS_SIZE
);
189 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, VGABIOS_FILENAME
);
190 vga_bios_size
= load_image(buf
, phys_ram_base
+ vga_bios_offset
+ 8);
191 if (vga_bios_size
< 0) {
192 /* if no bios is present, we can still work */
193 fprintf(stderr
, "qemu: warning: could not load VGA bios '%s'\n", buf
);
196 /* set a specific header (XXX: find real Apple format for NDRV
198 phys_ram_base
[vga_bios_offset
] = 'N';
199 phys_ram_base
[vga_bios_offset
+ 1] = 'D';
200 phys_ram_base
[vga_bios_offset
+ 2] = 'R';
201 phys_ram_base
[vga_bios_offset
+ 3] = 'V';
202 cpu_to_be32w((uint32_t *)(phys_ram_base
+ vga_bios_offset
+ 4),
208 kernel_base
= KERNEL_LOAD_ADDR
;
209 /* now we can load the kernel */
210 kernel_size
= load_elf(kernel_filename
, kernel_base
- 0xc0000000ULL
,
213 kernel_size
= load_aout(kernel_filename
, kernel_base
,
214 ram_size
- kernel_base
);
216 kernel_size
= load_image_targphys(kernel_filename
,
218 ram_size
- kernel_base
);
219 if (kernel_size
< 0) {
220 cpu_abort(env
, "qemu: could not load kernel '%s'\n",
225 if (initrd_filename
) {
226 initrd_base
= INITRD_LOAD_ADDR
;
227 initrd_size
= load_image(initrd_filename
,
228 phys_ram_base
+ initrd_base
);
229 if (initrd_size
< 0) {
230 cpu_abort(env
, "qemu: could not load initial ram disk '%s'\n",
238 ppc_boot_device
= 'm';
244 ppc_boot_device
= '\0';
245 for (i
= 0; boot_device
[i
] != '\0'; i
++) {
246 /* TOFIX: for now, the second IDE channel is not properly
247 * used by OHW. The Mac floppy disk are not emulated.
248 * For now, OHW cannot boot from the network.
251 if (boot_device
[i
] >= 'a' && boot_device
[i
] <= 'f') {
252 ppc_boot_device
= boot_device
[i
];
256 if (boot_device
[i
] >= 'c' && boot_device
[i
] <= 'd') {
257 ppc_boot_device
= boot_device
[i
];
262 if (ppc_boot_device
== '\0') {
263 fprintf(stderr
, "No valid boot device for Mac99 machine\n");
268 isa_mem_base
= 0x80000000;
270 /* Register 2 MB of ISA IO space */
271 isa_mmio_init(0xfe000000, 0x00200000);
273 /* XXX: we register only 1 output pin for heathrow PIC */
274 heathrow_irqs
= qemu_mallocz(smp_cpus
* sizeof(qemu_irq
*));
276 qemu_mallocz(smp_cpus
* sizeof(qemu_irq
) * 1);
277 /* Connect the heathrow PIC outputs to the 6xx bus */
278 for (i
= 0; i
< smp_cpus
; i
++) {
279 switch (PPC_INPUT(env
)) {
280 case PPC_FLAGS_INPUT_6xx
:
281 heathrow_irqs
[i
] = heathrow_irqs
[0] + (i
* 1);
282 heathrow_irqs
[i
][0] =
283 ((qemu_irq
*)env
->irq_inputs
)[PPC6xx_INPUT_INT
];
286 cpu_abort(env
, "Bus model not supported on OldWorld Mac machine\n");
291 /* init basic PC hardware */
292 if (PPC_INPUT(env
) != PPC_FLAGS_INPUT_6xx
) {
293 cpu_abort(env
, "Only 6xx bus is supported on heathrow machine\n");
296 pic
= heathrow_pic_init(&pic_mem_index
, 1, heathrow_irqs
);
297 pci_bus
= pci_grackle_init(0xfec00000, pic
);
298 pci_vga_init(pci_bus
, ds
, phys_ram_base
+ vga_ram_offset
,
299 vga_ram_offset
, vga_ram_size
,
300 vga_bios_offset
, vga_bios_size
);
302 /* XXX: suppress that */
303 dummy_irq
= i8259_init(NULL
);
305 /* XXX: use Mac Serial port */
306 serial_init(0x3f8, dummy_irq
[4], 115200, serial_hds
[0]);
308 for(i
= 0; i
< nb_nics
; i
++) {
309 if (!nd_table
[i
].model
)
310 nd_table
[i
].model
= "ne2k_pci";
311 pci_nic_init(pci_bus
, &nd_table
[i
], -1);
314 /* First IDE channel is a CMD646 on the PCI bus */
316 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
317 fprintf(stderr
, "qemu: too many IDE bus\n");
320 index
= drive_get_index(IF_IDE
, 0, 0);
324 hd
[0] = drives_table
[index
].bdrv
;
325 index
= drive_get_index(IF_IDE
, 0, 1);
329 hd
[1] = drives_table
[index
].bdrv
;
330 hd
[3] = hd
[2] = NULL
;
331 pci_cmd646_ide_init(pci_bus
, hd
, 0);
333 /* Second IDE channel is a MAC IDE on the MacIO bus */
334 index
= drive_get_index(IF_IDE
, 1, 0);
338 hd
[0] = drives_table
[index
].bdrv
;
339 index
= drive_get_index(IF_IDE
, 1, 1);
343 hd
[1] = drives_table
[index
].bdrv
;
344 ide_mem_index
[0] = -1;
345 ide_mem_index
[1] = pmac_ide_init(hd
, pic
[0x0D]);
347 /* cuda also initialize ADB */
348 cuda_init(&cuda_mem_index
, pic
[0x12]);
350 adb_kbd_init(&adb_bus
);
351 adb_mouse_init(&adb_bus
);
353 nvr
= macio_nvram_init(&nvram_mem_index
, 0x2000);
354 pmac_format_nvram_partition(nvr
, 0x2000);
356 dbdma_init(&dbdma_mem_index
);
358 macio_init(pci_bus
, 0x0017, 1, pic_mem_index
, dbdma_mem_index
,
359 cuda_mem_index
, nvr
, 2, ide_mem_index
);
362 usb_ohci_init_pci(pci_bus
, 3, -1);
365 if (graphic_depth
!= 15 && graphic_depth
!= 32 && graphic_depth
!= 8)
368 m48t59
= m48t59_init(dummy_irq
[8], 0xFFF04000, 0x0074, NVRAM_SIZE
, 59);
369 nvram
.opaque
= m48t59
;
370 nvram
.read_fn
= &m48t59_read
;
371 nvram
.write_fn
= &m48t59_write
;
372 PPC_NVRAM_set_params(&nvram
, NVRAM_SIZE
, "HEATHROW", ram_size
,
373 ppc_boot_device
, kernel_base
, kernel_size
,
375 initrd_base
, initrd_size
,
376 /* XXX: need an option to load a NVRAM image */
378 graphic_width
, graphic_height
, graphic_depth
);
379 /* No PCI init: the BIOS will do it */
381 /* Special port to get debug messages from Open-Firmware */
382 register_ioport_write(0x0F00, 4, 1, &PPC_debug_write
, NULL
);
384 fw_cfg
= fw_cfg_init(0, 0, CFG_ADDR
, CFG_ADDR
+ 2);
385 fw_cfg_add_i32(fw_cfg
, FW_CFG_ID
, 1);
386 fw_cfg_add_i64(fw_cfg
, FW_CFG_RAM_SIZE
, (uint64_t)ram_size
);
387 fw_cfg_add_i16(fw_cfg
, FW_CFG_MACHINE_ID
, ARCH_HEATHROW
);
390 QEMUMachine heathrow_machine
= {
392 .desc
= "Heathrow based PowerMAC",
393 .init
= ppc_heathrow_init
,
394 .ram_require
= BIOS_SIZE
+ VGA_BIOS_SIZE
+ VGA_RAM_SIZE
,
395 .max_cpus
= MAX_CPUS
,