X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=hw%2Fsun4m.c;h=a12aec9e8a302c2542a6a8197026dca75745ecaa;hb=cd346349b45ef056f138a184f660b8c34c3213cc;hp=c69d732f91b296a6e94484160389f26542be5a1d;hpb=b3a2319792ad5c0f0f8c3d2f4d02b95fd7efbc69;p=qemu diff --git a/hw/sun4m.c b/hw/sun4m.c index c69d732..a12aec9 100644 --- a/hw/sun4m.c +++ b/hw/sun4m.c @@ -1,8 +1,8 @@ /* * QEMU Sun4m System Emulator - * + * * Copyright (c) 2003-2005 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 @@ -49,9 +49,10 @@ #define KERNEL_LOAD_ADDR 0x00004000 #define CMDLINE_ADDR 0x007ff000 #define INITRD_LOAD_ADDR 0x00800000 -#define PROM_SIZE_MAX (256 * 1024) -#define PROM_ADDR 0xffd00000 -#define PROM_FILENAME "openbios-sparc32" +#define PROM_SIZE_MAX (512 * 1024) +#define PROM_PADDR 0xff0000000ULL +#define PROM_VADDR 0xffd00000 +#define PROM_FILENAME "openbios-sparc32" #define MAX_CPUS 16 #define MAX_PILS 16 @@ -154,14 +155,12 @@ static void nvram_finish_partition (m48t59_t *nvram, uint32_t start, m48t59_write(nvram, start + 1, sum & 0xff); } -static m48t59_t *nvram; - extern int nographic; static void nvram_init(m48t59_t *nvram, uint8_t *macaddr, const char *cmdline, - int boot_device, uint32_t RAM_size, - uint32_t kernel_size, - int width, int height, int depth, + int boot_device, uint32_t RAM_size, + uint32_t kernel_size, + int width, int height, int depth, int machine_id) { unsigned char tmp = 0; @@ -180,8 +179,8 @@ static void nvram_init(m48t59_t *nvram, uint8_t *macaddr, const char *cmdline, nvram_set_lword(nvram, 0x38, KERNEL_LOAD_ADDR); nvram_set_lword(nvram, 0x3C, kernel_size); if (cmdline) { - strcpy(phys_ram_base + CMDLINE_ADDR, cmdline); - nvram_set_lword(nvram, 0x40, CMDLINE_ADDR); + strcpy(phys_ram_base + CMDLINE_ADDR, cmdline); + nvram_set_lword(nvram, 0x40, CMDLINE_ADDR); nvram_set_lword(nvram, 0x44, strlen(cmdline)); } // initrd_image, initrd_size passed differently @@ -242,26 +241,41 @@ void irq_info() slavio_irq_info(slavio_intctl); } +void cpu_check_irqs(CPUState *env) +{ + if (env->pil_in && (env->interrupt_index == 0 || + (env->interrupt_index & ~15) == TT_EXTINT)) { + unsigned int i; + + for (i = 15; i > 0; i--) { + if (env->pil_in & (1 << i)) { + int old_interrupt = env->interrupt_index; + + env->interrupt_index = TT_EXTINT | i; + if (old_interrupt != env->interrupt_index) + cpu_interrupt(env, CPU_INTERRUPT_HARD); + break; + } + } + } else if (!env->pil_in && (env->interrupt_index & ~15) == TT_EXTINT) { + env->interrupt_index = 0; + cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); + } +} + static void cpu_set_irq(void *opaque, int irq, int level) { CPUState *env = opaque; if (level) { DPRINTF("Raise CPU IRQ %d\n", irq); - env->halted = 0; - - if (env->interrupt_index == 0 || - ((env->interrupt_index & ~15) == TT_EXTINT && - (env->interrupt_index & 15) < irq)) { - env->interrupt_index = TT_EXTINT | irq; - cpu_interrupt(env, CPU_INTERRUPT_HARD); - } else { - DPRINTF("Not triggered, pending exception %d\n", - env->interrupt_index); - } + env->pil_in |= 1 << irq; + cpu_check_irqs(env); } else { DPRINTF("Lower CPU IRQ %d\n", irq); + env->pil_in &= ~(1 << irq); + cpu_check_irqs(env); } } @@ -292,16 +306,17 @@ static void secondary_cpu_reset(void *opaque) env->halted = 1; } -static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size, - DisplayState *ds, const char *cpu_model) +static void *sun4m_hw_init(const struct hwdef *hwdef, int RAM_size, + DisplayState *ds, const char *cpu_model) { CPUState *env, *envs[MAX_CPUS]; unsigned int i; - void *iommu, *espdma, *ledma, *main_esp; + void *iommu, *espdma, *ledma, *main_esp, *nvram; const sparc_def_t *def; qemu_irq *cpu_irqs[MAX_CPUS], *slavio_irq, *slavio_cpu_irq, *espdma_irq, *ledma_irq; + qemu_irq *esp_reset, *le_reset; /* init CPUs */ sparc_find_by_name(cpu_model, &def); @@ -312,7 +327,7 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size, for(i = 0; i < smp_cpus; i++) { env = cpu_init(); - cpu_sparc_register(env, def); + cpu_sparc_register(env, def, i); envs[i] = env; if (i == 0) { qemu_register_reset(main_cpu_reset, env); @@ -328,7 +343,7 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size, cpu_irqs[i] = qemu_allocate_irqs(dummy_cpu_set_irq, NULL, MAX_PILS); /* allocate RAM */ - cpu_register_physical_memory(0, ram_size, 0); + cpu_register_physical_memory(0, RAM_size, 0); iommu = iommu_init(hwdef->iommu_base); slavio_intctl = slavio_intctl_init(hwdef->intctl_base, @@ -339,41 +354,45 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size, hwdef->clock_irq); espdma = sparc32_dma_init(hwdef->dma_base, slavio_irq[hwdef->esp_irq], - iommu, &espdma_irq); + iommu, &espdma_irq, &esp_reset); + ledma = sparc32_dma_init(hwdef->dma_base + 16ULL, - slavio_irq[hwdef->le_irq], iommu, &ledma_irq); + slavio_irq[hwdef->le_irq], iommu, &ledma_irq, + &le_reset); if (graphic_depth != 8 && graphic_depth != 24) { fprintf(stderr, "qemu: Unsupported depth: %d\n", graphic_depth); exit (1); } - tcx_init(ds, hwdef->tcx_base, phys_ram_base + ram_size, ram_size, + tcx_init(ds, hwdef->tcx_base, phys_ram_base + RAM_size, RAM_size, hwdef->vram_size, graphic_width, graphic_height, graphic_depth); - if (nd_table[0].vlan) { - if (nd_table[0].model == NULL - || strcmp(nd_table[0].model, "lance") == 0) { - lance_init(&nd_table[0], hwdef->le_base, ledma, *ledma_irq); - } else { - fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model); - exit (1); - } + + if (nd_table[0].model == NULL + || strcmp(nd_table[0].model, "lance") == 0) { + lance_init(&nd_table[0], hwdef->le_base, ledma, *ledma_irq, le_reset); + } else if (strcmp(nd_table[0].model, "?") == 0) { + fprintf(stderr, "qemu: Supported NICs: lance\n"); + exit (1); + } else { + fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model); + exit (1); } + nvram = m48t59_init(slavio_irq[0], hwdef->nvram_base, 0, hwdef->nvram_size, 8); - for (i = 0; i < MAX_CPUS; i++) { - slavio_timer_init(hwdef->counter_base + - (target_phys_addr_t)(i * TARGET_PAGE_SIZE), - slavio_cpu_irq[i], 0); - } - slavio_timer_init(hwdef->counter_base + 0x10000ULL, - slavio_irq[hwdef->clock1_irq], 2); + + slavio_timer_init_all(hwdef->counter_base, slavio_irq[hwdef->clock1_irq], + slavio_cpu_irq); + slavio_serial_ms_kbd_init(hwdef->ms_kb_base, slavio_irq[hwdef->ms_kb_irq]); // Slavio TTYA (base+4, Linux ttyS0) is the first Qemu serial device // Slavio TTYB (base+0, Linux ttyS1) is the second Qemu serial device slavio_serial_init(hwdef->serial_base, slavio_irq[hwdef->ser_irq], serial_hds[1], serial_hds[0]); fdctrl_init(slavio_irq[hwdef->fd_irq], 0, 1, hwdef->fd_base, fd_table); - main_esp = esp_init(bs_table, hwdef->esp_base, espdma, *espdma_irq); + + main_esp = esp_init(bs_table, hwdef->esp_base, espdma, *espdma_irq, + esp_reset); for (i = 0; i < MAX_DISKS; i++) { if (bs_table[i]) { @@ -385,13 +404,16 @@ static void sun4m_hw_init(const struct hwdef *hwdef, int ram_size, slavio_irq[hwdef->me_irq]); if (hwdef->cs_base != (target_phys_addr_t)-1) cs_init(hwdef->cs_base, hwdef->cs_irq, slavio_intctl); + + return nvram; } -static void sun4m_load_kernel(long vram_size, int ram_size, int boot_device, +static void sun4m_load_kernel(long vram_size, int RAM_size, int boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, - int machine_id) + int machine_id, + void *nvram) { int ret, linux_boot; char buf[1024]; @@ -400,30 +422,35 @@ static void sun4m_load_kernel(long vram_size, int ram_size, int boot_device, linux_boot = (kernel_filename != NULL); - prom_offset = ram_size + vram_size; - cpu_register_physical_memory(PROM_ADDR, - (PROM_SIZE_MAX + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK, + prom_offset = RAM_size + vram_size; + cpu_register_physical_memory(PROM_PADDR, + (PROM_SIZE_MAX + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK, prom_offset | IO_MEM_ROM); - snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAME); - ret = load_elf(buf, 0, NULL, NULL, NULL); - if (ret < 0) { - fprintf(stderr, "qemu: could not load prom '%s'\n", - buf); - exit(1); + if (bios_name == NULL) + bios_name = PROM_FILENAME; + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); + ret = load_elf(buf, PROM_PADDR - PROM_VADDR, NULL, NULL, NULL); + if (ret < 0 || ret > PROM_SIZE_MAX) + ret = load_image(buf, phys_ram_base + prom_offset); + if (ret < 0 || ret > PROM_SIZE_MAX) { + fprintf(stderr, "qemu: could not load prom '%s'\n", + buf); + exit(1); } kernel_size = 0; if (linux_boot) { - kernel_size = load_elf(kernel_filename, -0xf0000000, NULL, NULL, NULL); + kernel_size = load_elf(kernel_filename, -0xf0000000ULL, NULL, NULL, + NULL); if (kernel_size < 0) - kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR); - if (kernel_size < 0) - kernel_size = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR); + kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR); + if (kernel_size < 0) + kernel_size = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR); if (kernel_size < 0) { - fprintf(stderr, "qemu: could not load kernel '%s'\n", + fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); - exit(1); + exit(1); } /* load initrd */ @@ -431,24 +458,24 @@ static void sun4m_load_kernel(long vram_size, int ram_size, int boot_device, if (initrd_filename) { initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR); if (initrd_size < 0) { - fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", + fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } if (initrd_size > 0) { - for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) { - if (ldl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i) - == 0x48647253) { // HdrS - stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR); - stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size); - break; - } - } + for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) { + if (ldl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i) + == 0x48647253) { // HdrS + stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR); + stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size); + break; + } + } } } nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline, - boot_device, ram_size, kernel_size, graphic_width, + boot_device, RAM_size, kernel_size, graphic_width, graphic_height, graphic_depth, machine_id); } @@ -482,8 +509,8 @@ static const struct hwdef hwdefs[] = { .cs_irq = 5, .machine_id = 0x80, .intbit_to_level = { - 2, 3, 5, 7, 9, 11, 0, 14, 3, 5, 7, 9, 11, 13, 12, 12, - 6, 0, 4, 10, 8, 0, 11, 0, 0, 0, 0, 0, 15, 0, 15, 0, + 2, 3, 5, 7, 9, 11, 0, 14, 3, 5, 7, 9, 11, 13, 12, 12, + 6, 0, 4, 10, 8, 0, 11, 0, 0, 0, 0, 0, 15, 0, 15, 0, }, }, /* SS-10 */ @@ -515,54 +542,56 @@ static const struct hwdef hwdefs[] = { .cs_irq = -1, .machine_id = 0x72, .intbit_to_level = { - 2, 3, 5, 7, 9, 11, 0, 14, 3, 5, 7, 9, 11, 13, 12, 12, - 6, 0, 4, 10, 8, 0, 11, 0, 0, 0, 0, 0, 15, 0, 15, 0, + 2, 3, 5, 7, 9, 11, 0, 14, 3, 5, 7, 9, 11, 13, 12, 12, + 6, 0, 4, 10, 8, 0, 11, 0, 0, 0, 0, 0, 15, 0, 15, 0, }, }, }; -static void sun4m_common_init(int ram_size, int boot_device, DisplayState *ds, +static void sun4m_common_init(int RAM_size, int boot_device, DisplayState *ds, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model, unsigned int machine, int max_ram) { - if ((unsigned int)ram_size > (unsigned int)max_ram) { + void *nvram; + + if ((unsigned int)RAM_size > (unsigned int)max_ram) { fprintf(stderr, "qemu: Too much memory for this machine: %d, maximum %d\n", - (unsigned int)ram_size / (1024 * 1024), + (unsigned int)RAM_size / (1024 * 1024), (unsigned int)max_ram / (1024 * 1024)); exit(1); } - sun4m_hw_init(&hwdefs[machine], ram_size, ds, cpu_model); + nvram = sun4m_hw_init(&hwdefs[machine], RAM_size, ds, cpu_model); - sun4m_load_kernel(hwdefs[machine].vram_size, ram_size, boot_device, + sun4m_load_kernel(hwdefs[machine].vram_size, RAM_size, boot_device, kernel_filename, kernel_cmdline, initrd_filename, - hwdefs[machine].machine_id); + hwdefs[machine].machine_id, nvram); } /* SPARCstation 5 hardware initialisation */ -static void ss5_init(int ram_size, int vga_ram_size, int boot_device, +static void ss5_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, const char *cpu_model) { if (cpu_model == NULL) cpu_model = "Fujitsu MB86904"; - sun4m_common_init(ram_size, boot_device, ds, kernel_filename, + sun4m_common_init(RAM_size, boot_device, ds, kernel_filename, kernel_cmdline, initrd_filename, cpu_model, 0, 0x10000000); } /* SPARCstation 10 hardware initialisation */ -static void ss10_init(int ram_size, int vga_ram_size, int boot_device, +static void ss10_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, const char *cpu_model) { if (cpu_model == NULL) cpu_model = "TI SuperSparc II"; - sun4m_common_init(ram_size, boot_device, ds, kernel_filename, + sun4m_common_init(RAM_size, boot_device, ds, kernel_filename, kernel_cmdline, initrd_filename, cpu_model, - 1, PROM_ADDR); // XXX prom overlap, actually first 4GB ok + 1, 0xffffffff); // XXX actually first 62GB ok } QEMUMachine ss5_machine = {