/*
* 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
* THE SOFTWARE.
*/
#include "vl.h"
+//#define DEBUG_IRQ
/*
* Sun4m architecture was used in the following machines:
* See for example: http://www.sunhelp.org/faq/sunref1.html
*/
+#ifdef DEBUG_IRQ
+#define DPRINTF(fmt, args...) \
+ do { printf("CPUIRQ: " fmt , ##args); } while (0)
+#else
+#define DPRINTF(fmt, args...)
+#endif
+
#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
struct hwdef {
target_phys_addr_t iommu_base, slavio_base;
long vram_size, nvram_size;
// IRQ numbers are not PIL ones, but master interrupt controller register
// bit numbers
- int intctl_g_intr, esp_irq, le_irq, cpu_irq, clock_irq, clock1_irq;
+ int intctl_g_intr, esp_irq, le_irq, clock_irq, clock1_irq;
int ser_irq, ms_kb_irq, fd_irq, me_irq, cs_irq;
int machine_id; // For NVRAM
uint32_t intbit_to_level[32];
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;
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
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;
+ 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);
+ }
+}
+
+static void dummy_cpu_set_irq(void *opaque, int irq, int level)
+{
+}
+
static void *slavio_misc;
void qemu_system_powerdown(void)
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, *dma, *main_esp, *main_lance = NULL;
+ void *iommu, *espdma, *ledma, *main_esp, *nvram;
const sparc_def_t *def;
- qemu_irq *slavio_irq;
+ 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);
fprintf(stderr, "Unable to find Sparc CPU definition\n");
exit(1);
}
+
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);
env->halted = 1;
}
register_savevm("cpu", i, 3, cpu_save, cpu_load, env);
+ cpu_irqs[i] = qemu_allocate_irqs(cpu_set_irq, envs[i], MAX_PILS);
}
+
+ for (i = smp_cpus; i < MAX_CPUS; i++)
+ 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,
hwdef->intctl_base + 0x10000ULL,
&hwdef->intbit_to_level[0],
- &slavio_irq);
- for(i = 0; i < smp_cpus; i++) {
- slavio_intctl_set_cpu(slavio_intctl, i, envs[i]);
- }
- dma = sparc32_dma_init(hwdef->dma_base, slavio_irq[hwdef->esp_irq],
- slavio_irq[hwdef->le_irq], iommu);
+ &slavio_irq, &slavio_cpu_irq,
+ cpu_irqs,
+ hwdef->clock_irq);
+
+ espdma = sparc32_dma_init(hwdef->dma_base, slavio_irq[hwdef->esp_irq],
+ iommu, &espdma_irq, &esp_reset);
+
+ ledma = sparc32_dma_init(hwdef->dma_base + 16ULL,
+ 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) {
- main_lance = lance_init(&nd_table[0], hwdef->le_base, dma,
- slavio_irq[hwdef->le_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),
- hwdef->clock_irq, 0, i, slavio_intctl);
- }
- slavio_timer_init(hwdef->counter_base + 0x10000ULL, hwdef->clock1_irq, 2,
- (unsigned int)-1, slavio_intctl);
+
+ 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, dma);
+
+ 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]) {
slavio_irq[hwdef->me_irq]);
if (hwdef->cs_base != (target_phys_addr_t)-1)
cs_init(hwdef->cs_base, hwdef->cs_irq, slavio_intctl);
- sparc32_dma_set_reset_data(dma, main_esp, main_lance);
+
+ 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];
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_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_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 */
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);
}
.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 */
.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 = {
projects / qemu / blobdiff