hw/sun4u.c

   1 /*
   2  * QEMU Sun4u System Emulator
   3  *
   4  * Copyright (c) 2005 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "hw.h"
  25 #include "pci.h"
  26 #include "pc.h"
  27 #include "nvram.h"
  28 #include "fdc.h"
  29 #include "net.h"
  30 #include "qemu-timer.h"
  31 #include "sysemu.h"
  32 #include "boards.h"
  33 #include "firmware_abi.h"
  34
  35 #define KERNEL_LOAD_ADDR     0x00404000
  36 #define CMDLINE_ADDR         0x003ff000
  37 #define INITRD_LOAD_ADDR     0x00300000
  38 #define PROM_SIZE_MAX        (4 * 1024 * 1024)
  39 #define PROM_ADDR            0x1fff0000000ULL
  40 #define PROM_VADDR           0x000ffd00000ULL
  41 #define APB_SPECIAL_BASE     0x1fe00000000ULL
  42 #define APB_MEM_BASE         0x1ff00000000ULL
  43 #define VGA_BASE             (APB_MEM_BASE + 0x400000ULL)
  44 #define PROM_FILENAME        "openbios-sparc64"
  45 #define NVRAM_SIZE           0x2000
  46 #define MAX_IDE_BUS          2
  47
  48 /* TSC handling */
  49
  50 uint64_t cpu_get_tsc()
  51 {
  52     return qemu_get_clock(vm_clock);
  53 }
  54
  55 int DMA_get_channel_mode (int nchan)
  56 {
  57     return 0;
  58 }
  59 int DMA_read_memory (int nchan, void *buf, int pos, int size)
  60 {
  61     return 0;
  62 }
  63 int DMA_write_memory (int nchan, void *buf, int pos, int size)
  64 {
  65     return 0;
  66 }
  67 void DMA_hold_DREQ (int nchan) {}
  68 void DMA_release_DREQ (int nchan) {}
  69 void DMA_schedule(int nchan) {}
  70 void DMA_run (void) {}
  71 void DMA_init (int high_page_enable) {}
  72 void DMA_register_channel (int nchan,
  73                            DMA_transfer_handler transfer_handler,
  74                            void *opaque)
  75 {
  76 }
  77
  78 extern int nographic;
  79
  80 static int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
  81                                    const unsigned char *arch,
  82                                    ram_addr_t RAM_size, const char *boot_devices,
  83                                    uint32_t kernel_image, uint32_t kernel_size,
  84                                    const char *cmdline,
  85                                    uint32_t initrd_image, uint32_t initrd_size,
  86                                    uint32_t NVRAM_image,
  87                                    int width, int height, int depth)
  88 {
  89     unsigned int i;
  90     uint32_t start, end;
  91     uint8_t image[0x1ff0];
  92     ohwcfg_v3_t *header = (ohwcfg_v3_t *)&image;
  93     struct sparc_arch_cfg *sparc_header;
  94     struct OpenBIOS_nvpart_v1 *part_header;
  95
  96     memset(image, '\0', sizeof(image));
  97
  98     // Try to match PPC NVRAM
  99     strcpy(header->struct_ident, "QEMU_BIOS");
 100     header->struct_version = cpu_to_be32(3); /* structure v3 */
 101
 102     header->nvram_size = cpu_to_be16(NVRAM_size);
 103     header->nvram_arch_ptr = cpu_to_be16(sizeof(ohwcfg_v3_t));
 104     header->nvram_arch_size = cpu_to_be16(sizeof(struct sparc_arch_cfg));
 105     strcpy(header->arch, arch);
 106     header->nb_cpus = smp_cpus & 0xff;
 107     header->RAM0_base = 0;
 108     header->RAM0_size = cpu_to_be64((uint64_t)RAM_size);
 109     strcpy(header->boot_devices, boot_devices);
 110     header->nboot_devices = strlen(boot_devices) & 0xff;
 111     header->kernel_image = cpu_to_be64((uint64_t)kernel_image);
 112     header->kernel_size = cpu_to_be64((uint64_t)kernel_size);
 113     if (cmdline) {
 114         strcpy(phys_ram_base + CMDLINE_ADDR, cmdline);
 115         header->cmdline = cpu_to_be64((uint64_t)CMDLINE_ADDR);
 116         header->cmdline_size = cpu_to_be64((uint64_t)strlen(cmdline));
 117     }
 118     header->initrd_image = cpu_to_be64((uint64_t)initrd_image);
 119     header->initrd_size = cpu_to_be64((uint64_t)initrd_size);
 120     header->NVRAM_image = cpu_to_be64((uint64_t)NVRAM_image);
 121
 122     header->width = cpu_to_be16(width);
 123     header->height = cpu_to_be16(height);
 124     header->depth = cpu_to_be16(depth);
 125     if (nographic)
 126         header->graphic_flags = cpu_to_be16(OHW_GF_NOGRAPHICS);
 127
 128     header->crc = cpu_to_be16(OHW_compute_crc(header, 0x00, 0xF8));
 129
 130     // Architecture specific header
 131     start = sizeof(ohwcfg_v3_t);
 132     sparc_header = (struct sparc_arch_cfg *)&image[start];
 133     sparc_header->valid = 0;
 134     start += sizeof(struct sparc_arch_cfg);
 135
 136     // OpenBIOS nvram variables
 137     // Variable partition
 138     part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
 139     part_header->signature = OPENBIOS_PART_SYSTEM;
 140     strcpy(part_header->name, "system");
 141
 142     end = start + sizeof(struct OpenBIOS_nvpart_v1);
 143     for (i = 0; i < nb_prom_envs; i++)
 144         end = OpenBIOS_set_var(image, end, prom_envs[i]);
 145
 146     // End marker
 147     image[end++] = '\0';
 148
 149     end = start + ((end - start + 15) & ~15);
 150     OpenBIOS_finish_partition(part_header, end - start);
 151
 152     // free partition
 153     start = end;
 154     part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
 155     part_header->signature = OPENBIOS_PART_FREE;
 156     strcpy(part_header->name, "free");
 157
 158     end = 0x1fd0;
 159     OpenBIOS_finish_partition(part_header, end - start);
 160
 161     for (i = 0; i < sizeof(image); i++)
 162         m48t59_write(nvram, i, image[i]);
 163
 164     return 0;
 165 }
 166
 167 void pic_info()
 168 {
 169 }
 170
 171 void irq_info()
 172 {
 173 }
 174
 175 void qemu_system_powerdown(void)
 176 {
 177 }
 178
 179 static void main_cpu_reset(void *opaque)
 180 {
 181     CPUState *env = opaque;
 182
 183     cpu_reset(env);
 184     ptimer_set_limit(env->tick, 0x7fffffffffffffffULL, 1);
 185     ptimer_run(env->tick, 0);
 186     ptimer_set_limit(env->stick, 0x7fffffffffffffffULL, 1);
 187     ptimer_run(env->stick, 0);
 188     ptimer_set_limit(env->hstick, 0x7fffffffffffffffULL, 1);
 189     ptimer_run(env->hstick, 0);
 190 }
 191
 192 void tick_irq(void *opaque)
 193 {
 194     CPUState *env = opaque;
 195
 196     cpu_interrupt(env, CPU_INTERRUPT_TIMER);
 197 }
 198
 199 void stick_irq(void *opaque)
 200 {
 201     CPUState *env = opaque;
 202
 203     cpu_interrupt(env, CPU_INTERRUPT_TIMER);
 204 }
 205
 206 void hstick_irq(void *opaque)
 207 {
 208     CPUState *env = opaque;
 209
 210     cpu_interrupt(env, CPU_INTERRUPT_TIMER);
 211 }
 212
 213 static void dummy_cpu_set_irq(void *opaque, int irq, int level)
 214 {
 215 }
 216
 217 static const int ide_iobase[2] = { 0x1f0, 0x170 };
 218 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
 219 static const int ide_irq[2] = { 14, 15 };
 220
 221 static const int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
 222 static const int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
 223
 224 static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
 225 static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
 226
 227 static fdctrl_t *floppy_controller;
 228
 229 /* Sun4u hardware initialisation */
 230 static void sun4u_init(ram_addr_t ram_size, int vga_ram_size,
 231                        const char *boot_devices, DisplayState *ds,
 232                        const char *kernel_filename, const char *kernel_cmdline,
 233                        const char *initrd_filename, const char *cpu_model)
 234 {
 235     CPUState *env;
 236     char buf[1024];
 237     m48t59_t *nvram;
 238     int ret, linux_boot;
 239     unsigned int i;
 240     long prom_offset, initrd_size, kernel_size;
 241     PCIBus *pci_bus;
 242     QEMUBH *bh;
 243     qemu_irq *irq;
 244     int index;
 245     BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 246     BlockDriverState *fd[MAX_FD];
 247
 248     linux_boot = (kernel_filename != NULL);
 249
 250     /* init CPUs */
 251     if (cpu_model == NULL)
 252         cpu_model = "TI UltraSparc II";
 253     env = cpu_init(cpu_model);
 254     if (!env) {
 255         fprintf(stderr, "Unable to find Sparc CPU definition\n");
 256         exit(1);
 257     }
 258     bh = qemu_bh_new(tick_irq, env);
 259     env->tick = ptimer_init(bh);
 260     ptimer_set_period(env->tick, 1ULL);
 261
 262     bh = qemu_bh_new(stick_irq, env);
 263     env->stick = ptimer_init(bh);
 264     ptimer_set_period(env->stick, 1ULL);
 265
 266     bh = qemu_bh_new(hstick_irq, env);
 267     env->hstick = ptimer_init(bh);
 268     ptimer_set_period(env->hstick, 1ULL);
 269     register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
 270     qemu_register_reset(main_cpu_reset, env);
 271     main_cpu_reset(env);
 272
 273     /* allocate RAM */
 274     cpu_register_physical_memory(0, ram_size, 0);
 275
 276     prom_offset = ram_size + vga_ram_size;
 277     cpu_register_physical_memory(PROM_ADDR,
 278                                  (PROM_SIZE_MAX + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
 279                                  prom_offset | IO_MEM_ROM);
 280
 281     if (bios_name == NULL)
 282         bios_name = PROM_FILENAME;
 283     snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
 284     ret = load_elf(buf, PROM_ADDR - PROM_VADDR, NULL, NULL, NULL);
 285     if (ret < 0) {
 286         fprintf(stderr, "qemu: could not load prom '%s'\n",
 287                 buf);
 288         exit(1);
 289     }
 290
 291     kernel_size = 0;
 292     initrd_size = 0;
 293     if (linux_boot) {
 294         /* XXX: put correct offset */
 295         kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL);
 296         if (kernel_size < 0)
 297             kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
 298         if (kernel_size < 0)
 299             kernel_size = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
 300         if (kernel_size < 0) {
 301             fprintf(stderr, "qemu: could not load kernel '%s'\n",
 302                     kernel_filename);
 303             exit(1);
 304         }
 305
 306         /* load initrd */
 307         if (initrd_filename) {
 308             initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR);
 309             if (initrd_size < 0) {
 310                 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
 311                         initrd_filename);
 312                 exit(1);
 313             }
 314         }
 315         if (initrd_size > 0) {
 316             for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
 317                 if (ldl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i)
 318                     == 0x48647253) { // HdrS
 319                     stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
 320                     stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size);
 321                     break;
 322                 }
 323             }
 324         }
 325     }
 326     pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, NULL);
 327     isa_mem_base = VGA_BASE;
 328     pci_cirrus_vga_init(pci_bus, ds, phys_ram_base + ram_size, ram_size, vga_ram_size);
 329
 330     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
 331         if (serial_hds[i]) {
 332             serial_init(serial_io[i], NULL/*serial_irq[i]*/, 115200,
 333                         serial_hds[i]);
 334         }
 335     }
 336
 337     for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
 338         if (parallel_hds[i]) {
 339             parallel_init(parallel_io[i], NULL/*parallel_irq[i]*/, parallel_hds[i]);
 340         }
 341     }
 342
 343     for(i = 0; i < nb_nics; i++) {
 344         if (!nd_table[i].model)
 345             nd_table[i].model = "ne2k_pci";
 346         if (!pci_nic_init(pci_bus, &nd_table[i], -1))
 347             exit(1);
 348     }
 349
 350     irq = qemu_allocate_irqs(dummy_cpu_set_irq, NULL, 32);
 351     if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
 352         fprintf(stderr, "qemu: too many IDE bus\n");
 353         exit(1);
 354     }
 355     for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
 356         index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
 357        if (index != -1)
 358            hd[i] = drives_table[index].bdrv;
 359        else
 360            hd[i] = NULL;
 361     }
 362
 363     // XXX pci_cmd646_ide_init(pci_bus, hd, 1);
 364     pci_piix3_ide_init(pci_bus, hd, -1, irq);
 365     /* FIXME: wire up interrupts.  */
 366     i8042_init(NULL/*1*/, NULL/*12*/, 0x60);
 367     for(i = 0; i < MAX_FD; i++) {
 368         index = drive_get_index(IF_FLOPPY, 0, i);
 369        if (index != -1)
 370            fd[i] = drives_table[index].bdrv;
 371        else
 372            fd[i] = NULL;
 373     }
 374     floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd);
 375     nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59);
 376     sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", ram_size, boot_devices,
 377                          KERNEL_LOAD_ADDR, kernel_size,
 378                          kernel_cmdline,
 379                          INITRD_LOAD_ADDR, initrd_size,
 380                          /* XXX: need an option to load a NVRAM image */
 381                          0,
 382                          graphic_width, graphic_height, graphic_depth);
 383
 384 }
 385
 386 QEMUMachine sun4u_machine = {
 387     "sun4u",
 388     "Sun4u platform",
 389     sun4u_init,
 390     PROM_SIZE_MAX + VGA_RAM_SIZE,
 391 };