2 * QEMU OldWorld PowerMac (currently ~G3 Beige) 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
39 #define VGA_BIOS_SIZE 65536
40 #define CFG_ADDR 0xf0000510
42 /* temporary frame buffer OSI calls for the video.x driver. The right
43 solution is to modify the driver to use VGA PCI I/Os */
44 /* XXX: to be removed. This is no way related to emulation */
45 static int vga_osi_call (CPUState
*env
)
47 static int vga_vbl_enabled
;
50 // printf("osi_call R5=" REGX "\n", ppc_dump_gpr(env, 5));
52 /* same handler as PearPC, coming from the original MOL video
57 case 28: /* set_vmode */
58 if (env
->gpr
[6] != 1 || env
->gpr
[7] != 0)
63 case 29: /* get_vmode_info */
64 if (env
->gpr
[6] != 0) {
65 if (env
->gpr
[6] != 1 || env
->gpr
[7] != 0) {
71 env
->gpr
[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */
72 env
->gpr
[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */
73 env
->gpr
[6] = (graphic_width
<< 16) | graphic_height
; /* w, h */
74 env
->gpr
[7] = 85 << 16; /* refresh rate */
75 env
->gpr
[8] = (graphic_depth
+ 7) & ~7; /* depth (round to byte) */
76 linesize
= ((graphic_depth
+ 7) >> 3) * graphic_width
;
77 linesize
= (linesize
+ 3) & ~3;
78 env
->gpr
[9] = (linesize
<< 16) | 0; /* row_bytes, offset */
80 case 31: /* set_video power */
83 case 39: /* video_ctrl */
84 if (env
->gpr
[6] == 0 || env
->gpr
[6] == 1)
85 vga_vbl_enabled
= env
->gpr
[6];
90 case 59: /* set_color */
91 /* R6 = index, R7 = RGB */
94 case 64: /* get color */
98 case 116: /* set hwcursor */
99 /* R6 = x, R7 = y, R8 = visible, R9 = data */
102 fprintf(stderr
, "unsupported OSI call R5=" REGX
"\n",
103 ppc_dump_gpr(env
, 5));
107 return 1; /* osi_call handled */
110 static void ppc_heathrow_init (ram_addr_t ram_size
, int vga_ram_size
,
111 const char *boot_device
, DisplayState
*ds
,
112 const char *kernel_filename
,
113 const char *kernel_cmdline
,
114 const char *initrd_filename
,
115 const char *cpu_model
)
117 CPUState
*env
= NULL
, *envs
[MAX_CPUS
];
119 qemu_irq
*pic
, **heathrow_irqs
;
123 ram_addr_t ram_offset
, vga_ram_offset
, bios_offset
, vga_bios_offset
;
124 uint32_t kernel_base
, kernel_size
, initrd_base
, initrd_size
;
126 MacIONVRAMState
*nvr
;
127 int vga_bios_size
, bios_size
;
129 int pic_mem_index
, nvram_mem_index
, dbdma_mem_index
, cuda_mem_index
;
130 int escc_mem_index
, ide_mem_index
[2];
132 BlockDriverState
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
136 linux_boot
= (kernel_filename
!= NULL
);
139 if (cpu_model
== NULL
)
141 for (i
= 0; i
< smp_cpus
; i
++) {
142 env
= cpu_init(cpu_model
);
144 fprintf(stderr
, "Unable to find PowerPC CPU definition\n");
147 /* Set time-base frequency to 100 Mhz */
148 cpu_ppc_tb_init(env
, 100UL * 1000UL * 1000UL);
149 env
->osi_call
= vga_osi_call
;
150 qemu_register_reset(&cpu_ppc_reset
, env
);
153 if (env
->nip
< 0xFFF80000) {
154 /* Special test for PowerPC 601:
155 * the boot vector is at 0xFFF00100, then we need a 1MB BIOS.
156 * But the NVRAM is located at 0xFFF04000...
158 cpu_abort(env
, "G3 Beige Mac hardware can not handle 1 MB BIOS\n");
162 ram_offset
= qemu_ram_alloc(ram_size
);
163 cpu_register_physical_memory(0, ram_size
, ram_offset
);
165 /* allocate VGA RAM */
166 vga_ram_offset
= qemu_ram_alloc(vga_ram_size
);
168 /* allocate and load BIOS */
169 bios_offset
= qemu_ram_alloc(BIOS_SIZE
);
170 if (bios_name
== NULL
)
171 bios_name
= PROM_FILENAME
;
172 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, bios_name
);
173 cpu_register_physical_memory(PROM_ADDR
, BIOS_SIZE
, bios_offset
| IO_MEM_ROM
);
175 /* Load OpenBIOS (ELF) */
176 bios_size
= load_elf(buf
, 0, NULL
, NULL
, NULL
);
177 if (bios_size
< 0 || bios_size
> BIOS_SIZE
) {
178 cpu_abort(env
, "qemu: could not load PowerPC bios '%s'\n", buf
);
182 /* allocate and load VGA BIOS */
183 vga_bios_offset
= qemu_ram_alloc(VGA_BIOS_SIZE
);
184 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, VGABIOS_FILENAME
);
185 vga_bios_size
= load_image(buf
, phys_ram_base
+ vga_bios_offset
+ 8);
186 if (vga_bios_size
< 0) {
187 /* if no bios is present, we can still work */
188 fprintf(stderr
, "qemu: warning: could not load VGA bios '%s'\n", buf
);
191 /* set a specific header (XXX: find real Apple format for NDRV
193 phys_ram_base
[vga_bios_offset
] = 'N';
194 phys_ram_base
[vga_bios_offset
+ 1] = 'D';
195 phys_ram_base
[vga_bios_offset
+ 2] = 'R';
196 phys_ram_base
[vga_bios_offset
+ 3] = 'V';
197 cpu_to_be32w((uint32_t *)(phys_ram_base
+ vga_bios_offset
+ 4),
203 kernel_base
= KERNEL_LOAD_ADDR
;
204 /* now we can load the kernel */
205 kernel_size
= load_elf(kernel_filename
, kernel_base
- 0xc0000000ULL
,
208 kernel_size
= load_aout(kernel_filename
, kernel_base
,
209 ram_size
- kernel_base
);
211 kernel_size
= load_image_targphys(kernel_filename
,
213 ram_size
- kernel_base
);
214 if (kernel_size
< 0) {
215 cpu_abort(env
, "qemu: could not load kernel '%s'\n",
220 if (initrd_filename
) {
221 initrd_base
= INITRD_LOAD_ADDR
;
222 initrd_size
= load_image(initrd_filename
,
223 phys_ram_base
+ initrd_base
);
224 if (initrd_size
< 0) {
225 cpu_abort(env
, "qemu: could not load initial ram disk '%s'\n",
233 ppc_boot_device
= 'm';
239 ppc_boot_device
= '\0';
240 for (i
= 0; boot_device
[i
] != '\0'; i
++) {
241 /* TOFIX: for now, the second IDE channel is not properly
242 * used by OHW. The Mac floppy disk are not emulated.
243 * For now, OHW cannot boot from the network.
246 if (boot_device
[i
] >= 'a' && boot_device
[i
] <= 'f') {
247 ppc_boot_device
= boot_device
[i
];
251 if (boot_device
[i
] >= 'c' && boot_device
[i
] <= 'd') {
252 ppc_boot_device
= boot_device
[i
];
257 if (ppc_boot_device
== '\0') {
258 fprintf(stderr
, "No valid boot device for Mac99 machine\n");
263 isa_mem_base
= 0x80000000;
265 /* Register 2 MB of ISA IO space */
266 isa_mmio_init(0xfe000000, 0x00200000);
268 /* XXX: we register only 1 output pin for heathrow PIC */
269 heathrow_irqs
= qemu_mallocz(smp_cpus
* sizeof(qemu_irq
*));
271 qemu_mallocz(smp_cpus
* sizeof(qemu_irq
) * 1);
272 /* Connect the heathrow PIC outputs to the 6xx bus */
273 for (i
= 0; i
< smp_cpus
; i
++) {
274 switch (PPC_INPUT(env
)) {
275 case PPC_FLAGS_INPUT_6xx
:
276 heathrow_irqs
[i
] = heathrow_irqs
[0] + (i
* 1);
277 heathrow_irqs
[i
][0] =
278 ((qemu_irq
*)env
->irq_inputs
)[PPC6xx_INPUT_INT
];
281 cpu_abort(env
, "Bus model not supported on OldWorld Mac machine\n");
286 /* init basic PC hardware */
287 if (PPC_INPUT(env
) != PPC_FLAGS_INPUT_6xx
) {
288 cpu_abort(env
, "Only 6xx bus is supported on heathrow machine\n");
291 pic
= heathrow_pic_init(&pic_mem_index
, 1, heathrow_irqs
);
292 pci_bus
= pci_grackle_init(0xfec00000, pic
);
293 pci_vga_init(pci_bus
, ds
, phys_ram_base
+ vga_ram_offset
,
294 vga_ram_offset
, vga_ram_size
,
295 vga_bios_offset
, vga_bios_size
);
297 /* XXX: suppress that */
298 dummy_irq
= i8259_init(NULL
);
300 escc_mem_index
= escc_init(0x80013000, pic
[0x10], serial_hds
[0],
301 serial_hds
[1], ESCC_CLOCK
, 4);
303 for(i
= 0; i
< nb_nics
; i
++) {
304 if (!nd_table
[i
].model
)
305 nd_table
[i
].model
= "ne2k_pci";
306 pci_nic_init(pci_bus
, &nd_table
[i
], -1);
309 /* First IDE channel is a CMD646 on the PCI bus */
311 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
312 fprintf(stderr
, "qemu: too many IDE bus\n");
315 index
= drive_get_index(IF_IDE
, 0, 0);
319 hd
[0] = drives_table
[index
].bdrv
;
320 index
= drive_get_index(IF_IDE
, 0, 1);
324 hd
[1] = drives_table
[index
].bdrv
;
325 hd
[3] = hd
[2] = NULL
;
326 pci_cmd646_ide_init(pci_bus
, hd
, 0);
328 /* Second IDE channel is a MAC IDE on the MacIO bus */
329 index
= drive_get_index(IF_IDE
, 1, 0);
333 hd
[0] = drives_table
[index
].bdrv
;
334 index
= drive_get_index(IF_IDE
, 1, 1);
338 hd
[1] = drives_table
[index
].bdrv
;
339 ide_mem_index
[0] = -1;
340 ide_mem_index
[1] = pmac_ide_init(hd
, pic
[0x0D]);
342 /* cuda also initialize ADB */
343 cuda_init(&cuda_mem_index
, pic
[0x12]);
345 adb_kbd_init(&adb_bus
);
346 adb_mouse_init(&adb_bus
);
348 nvr
= macio_nvram_init(&nvram_mem_index
, 0x2000);
349 pmac_format_nvram_partition(nvr
, 0x2000);
351 dbdma_init(&dbdma_mem_index
);
353 macio_init(pci_bus
, 0x0010, 1, pic_mem_index
, dbdma_mem_index
,
354 cuda_mem_index
, nvr
, 2, ide_mem_index
, escc_mem_index
);
357 usb_ohci_init_pci(pci_bus
, 3, -1);
360 if (graphic_depth
!= 15 && graphic_depth
!= 32 && graphic_depth
!= 8)
363 m48t59
= m48t59_init(dummy_irq
[8], 0xFFF04000, 0x0074, NVRAM_SIZE
, 59);
364 nvram
.opaque
= m48t59
;
365 nvram
.read_fn
= &m48t59_read
;
366 nvram
.write_fn
= &m48t59_write
;
367 PPC_NVRAM_set_params(&nvram
, NVRAM_SIZE
, "HEATHROW", ram_size
,
368 ppc_boot_device
, kernel_base
, kernel_size
,
370 initrd_base
, initrd_size
,
371 /* XXX: need an option to load a NVRAM image */
373 graphic_width
, graphic_height
, graphic_depth
);
374 /* No PCI init: the BIOS will do it */
376 /* Special port to get debug messages from Open-Firmware */
377 register_ioport_write(0x0F00, 4, 1, &PPC_debug_write
, NULL
);
379 fw_cfg
= fw_cfg_init(0, 0, CFG_ADDR
, CFG_ADDR
+ 2);
380 fw_cfg_add_i32(fw_cfg
, FW_CFG_ID
, 1);
381 fw_cfg_add_i64(fw_cfg
, FW_CFG_RAM_SIZE
, (uint64_t)ram_size
);
382 fw_cfg_add_i16(fw_cfg
, FW_CFG_MACHINE_ID
, ARCH_HEATHROW
);
385 QEMUMachine heathrow_machine
= {
387 .desc
= "Heathrow based PowerMAC",
388 .init
= ppc_heathrow_init
,
389 .ram_require
= BIOS_SIZE
+ VGA_BIOS_SIZE
+ VGA_RAM_SIZE
,
390 .max_cpus
= MAX_CPUS
,