//#define DEBUG_IRQ
//#define DEBUG_EBUS
+//#define DEBUG_TIMER
#ifdef DEBUG_IRQ
#define CPUIRQ_DPRINTF(fmt, ...) \
#define EBUS_DPRINTF(fmt, ...)
#endif
+#ifdef DEBUG_TIMER
+#define TIMER_DPRINTF(fmt, ...) \
+ do { printf("TIMER: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define TIMER_DPRINTF(fmt, ...)
+#endif
+
#define KERNEL_LOAD_ADDR 0x00404000
#define CMDLINE_ADDR 0x003ff000
#define INITRD_LOAD_ADDR 0x00300000
#define PROM_VADDR 0x000ffd00000ULL
#define APB_SPECIAL_BASE 0x1fe00000000ULL
#define APB_MEM_BASE 0x1ff00000000ULL
-#define VGA_BASE (APB_MEM_BASE + 0x400000ULL)
+#define APB_PCI_IO_BASE (APB_SPECIAL_BASE + 0x02000000ULL)
#define PROM_FILENAME "openbios-sparc64"
#define NVRAM_SIZE 0x2000
#define MAX_IDE_BUS 2
void DMA_hold_DREQ (int nchan) {}
void DMA_release_DREQ (int nchan) {}
void DMA_schedule(int nchan) {}
-void DMA_init (int high_page_enable) {}
+
+void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit)
+{
+}
+
void DMA_register_channel (int nchan,
DMA_transfer_handler transfer_handler,
void *opaque)
return 0;
}
-static int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
- const char *arch,
- ram_addr_t RAM_size,
- const char *boot_devices,
- uint32_t kernel_image, uint32_t kernel_size,
- const char *cmdline,
- uint32_t initrd_image, uint32_t initrd_size,
- uint32_t NVRAM_image,
- int width, int height, int depth,
- const uint8_t *macaddr)
+static int sun4u_NVRAM_set_params(M48t59State *nvram, uint16_t NVRAM_size,
+ const char *arch, ram_addr_t RAM_size,
+ const char *boot_devices,
+ uint32_t kernel_image, uint32_t kernel_size,
+ const char *cmdline,
+ uint32_t initrd_image, uint32_t initrd_size,
+ uint32_t NVRAM_image,
+ int width, int height, int depth,
+ const uint8_t *macaddr)
{
unsigned int i;
uint32_t start, end;
#else
bswap_needed = 0;
#endif
- kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL,
- 1, ELF_MACHINE, 0);
+ kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
+ NULL, NULL, 1, ELF_MACHINE, 0);
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
RAM_size - KERNEL_LOAD_ADDR, bswap_needed,
}
}
+static void cpu_kick_irq(CPUState *env)
+{
+ env->halted = 0;
+ cpu_check_irqs(env);
+}
+
static void cpu_set_irq(void *opaque, int irq, int level)
{
CPUState *env = opaque;
uint64_t prom_addr;
} ResetData;
+void cpu_put_timer(QEMUFile *f, CPUTimer *s)
+{
+ qemu_put_be32s(f, &s->frequency);
+ qemu_put_be32s(f, &s->disabled);
+ qemu_put_be64s(f, &s->disabled_mask);
+ qemu_put_sbe64s(f, &s->clock_offset);
+
+ qemu_put_timer(f, s->qtimer);
+}
+
+void cpu_get_timer(QEMUFile *f, CPUTimer *s)
+{
+ qemu_get_be32s(f, &s->frequency);
+ qemu_get_be32s(f, &s->disabled);
+ qemu_get_be64s(f, &s->disabled_mask);
+ qemu_get_sbe64s(f, &s->clock_offset);
+
+ qemu_get_timer(f, s->qtimer);
+}
+
+static CPUTimer* cpu_timer_create(const char* name, CPUState *env,
+ QEMUBHFunc *cb, uint32_t frequency,
+ uint64_t disabled_mask)
+{
+ CPUTimer *timer = qemu_mallocz(sizeof (CPUTimer));
+
+ timer->name = name;
+ timer->frequency = frequency;
+ timer->disabled_mask = disabled_mask;
+
+ timer->disabled = 1;
+ timer->clock_offset = qemu_get_clock(vm_clock);
+
+ timer->qtimer = qemu_new_timer(vm_clock, cb, env);
+
+ return timer;
+}
+
+static void cpu_timer_reset(CPUTimer *timer)
+{
+ timer->disabled = 1;
+ timer->clock_offset = qemu_get_clock(vm_clock);
+
+ qemu_del_timer(timer->qtimer);
+}
+
static void main_cpu_reset(void *opaque)
{
ResetData *s = (ResetData *)opaque;
static unsigned int nr_resets;
cpu_reset(env);
- env->tick_cmpr = TICK_INT_DIS | 0;
- ptimer_set_limit(env->tick, TICK_MAX, 1);
- ptimer_run(env->tick, 1);
- env->stick_cmpr = TICK_INT_DIS | 0;
- ptimer_set_limit(env->stick, TICK_MAX, 1);
- ptimer_run(env->stick, 1);
- env->hstick_cmpr = TICK_INT_DIS | 0;
- ptimer_set_limit(env->hstick, TICK_MAX, 1);
- ptimer_run(env->hstick, 1);
+
+ cpu_timer_reset(env->tick);
+ cpu_timer_reset(env->stick);
+ cpu_timer_reset(env->hstick);
+
env->gregs[1] = 0; // Memory start
env->gregs[2] = ram_size; // Memory size
env->gregs[3] = 0; // Machine description XXX
{
CPUState *env = opaque;
- if (!(env->tick_cmpr & TICK_INT_DIS)) {
- env->softint |= SOFTINT_TIMER;
- cpu_interrupt(env, CPU_INTERRUPT_TIMER);
+ CPUTimer* timer = env->tick;
+
+ if (timer->disabled) {
+ CPUIRQ_DPRINTF("tick_irq: softint disabled\n");
+ return;
+ } else {
+ CPUIRQ_DPRINTF("tick: fire\n");
}
+
+ env->softint |= SOFTINT_TIMER;
+ cpu_kick_irq(env);
}
static void stick_irq(void *opaque)
{
CPUState *env = opaque;
- if (!(env->stick_cmpr & TICK_INT_DIS)) {
- env->softint |= SOFTINT_STIMER;
- cpu_interrupt(env, CPU_INTERRUPT_TIMER);
+ CPUTimer* timer = env->stick;
+
+ if (timer->disabled) {
+ CPUIRQ_DPRINTF("stick_irq: softint disabled\n");
+ return;
+ } else {
+ CPUIRQ_DPRINTF("stick: fire\n");
}
+
+ env->softint |= SOFTINT_STIMER;
+ cpu_kick_irq(env);
}
static void hstick_irq(void *opaque)
{
CPUState *env = opaque;
- if (!(env->hstick_cmpr & TICK_INT_DIS)) {
- cpu_interrupt(env, CPU_INTERRUPT_TIMER);
+ CPUTimer* timer = env->hstick;
+
+ if (timer->disabled) {
+ CPUIRQ_DPRINTF("hstick_irq: softint disabled\n");
+ return;
+ } else {
+ CPUIRQ_DPRINTF("hstick: fire\n");
}
+
+ env->softint |= SOFTINT_STIMER;
+ cpu_kick_irq(env);
}
-void cpu_tick_set_count(void *opaque, uint64_t count)
+static int64_t cpu_to_timer_ticks(int64_t cpu_ticks, uint32_t frequency)
{
- ptimer_set_count(opaque, -count);
+ return muldiv64(cpu_ticks, get_ticks_per_sec(), frequency);
}
-uint64_t cpu_tick_get_count(void *opaque)
+static uint64_t timer_to_cpu_ticks(int64_t timer_ticks, uint32_t frequency)
{
- return -ptimer_get_count(opaque);
+ return muldiv64(timer_ticks, frequency, get_ticks_per_sec());
}
-void cpu_tick_set_limit(void *opaque, uint64_t limit)
+void cpu_tick_set_count(CPUTimer *timer, uint64_t count)
{
- ptimer_set_limit(opaque, -limit, 0);
+ uint64_t real_count = count & ~timer->disabled_mask;
+ uint64_t disabled_bit = count & timer->disabled_mask;
+
+ int64_t vm_clock_offset = qemu_get_clock(vm_clock) -
+ cpu_to_timer_ticks(real_count, timer->frequency);
+
+ TIMER_DPRINTF("%s set_count count=0x%016lx (%s) p=%p\n",
+ timer->name, real_count,
+ timer->disabled?"disabled":"enabled", timer);
+
+ timer->disabled = disabled_bit ? 1 : 0;
+ timer->clock_offset = vm_clock_offset;
+}
+
+uint64_t cpu_tick_get_count(CPUTimer *timer)
+{
+ uint64_t real_count = timer_to_cpu_ticks(
+ qemu_get_clock(vm_clock) - timer->clock_offset,
+ timer->frequency);
+
+ TIMER_DPRINTF("%s get_count count=0x%016lx (%s) p=%p\n",
+ timer->name, real_count,
+ timer->disabled?"disabled":"enabled", timer);
+
+ if (timer->disabled)
+ real_count |= timer->disabled_mask;
+
+ return real_count;
+}
+
+void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit)
+{
+ int64_t now = qemu_get_clock(vm_clock);
+
+ uint64_t real_limit = limit & ~timer->disabled_mask;
+ timer->disabled = (limit & timer->disabled_mask) ? 1 : 0;
+
+ int64_t expires = cpu_to_timer_ticks(real_limit, timer->frequency) +
+ timer->clock_offset;
+
+ if (expires < now) {
+ expires = now + 1;
+ }
+
+ TIMER_DPRINTF("%s set_limit limit=0x%016lx (%s) p=%p "
+ "called with limit=0x%016lx at 0x%016lx (delta=0x%016lx)\n",
+ timer->name, real_limit,
+ timer->disabled?"disabled":"enabled",
+ timer, limit,
+ timer_to_cpu_ticks(now - timer->clock_offset,
+ timer->frequency),
+ timer_to_cpu_ticks(expires - now, timer->frequency));
+
+ if (!real_limit) {
+ TIMER_DPRINTF("%s set_limit limit=ZERO - not starting timer\n",
+ timer->name);
+ qemu_del_timer(timer->qtimer);
+ } else if (timer->disabled) {
+ qemu_del_timer(timer->qtimer);
+ } else {
+ qemu_mod_timer(timer->qtimer, expires);
+ }
}
static void ebus_mmio_mapfunc(PCIDevice *pci_dev, int region_num,
region_num, addr);
switch (region_num) {
case 0:
- isa_mmio_init(addr, 0x1000000);
+ isa_mmio_init(addr, 0x1000000, 1);
break;
case 1:
- isa_mmio_init(addr, 0x800000);
+ isa_mmio_init(addr, 0x800000, 1);
break;
}
}
device_init(pci_ebus_register);
+static uint64_t translate_prom_address(void *opaque, uint64_t addr)
+{
+ target_phys_addr_t *base_addr = (target_phys_addr_t *)opaque;
+ return addr + *base_addr - PROM_VADDR;
+}
+
/* Boot PROM (OpenBIOS) */
static void prom_init(target_phys_addr_t addr, const char *bios_name)
{
}
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
- ret = load_elf(filename, addr - PROM_VADDR, NULL, NULL, NULL,
- 1, ELF_MACHINE, 0);
+ ret = load_elf(filename, translate_prom_address, &addr,
+ NULL, NULL, NULL, 1, ELF_MACHINE, 0);
if (ret < 0 || ret > PROM_SIZE_MAX) {
ret = load_image_targphys(filename, addr, PROM_SIZE_MAX);
}
static CPUState *cpu_devinit(const char *cpu_model, const struct hwdef *hwdef)
{
CPUState *env;
- QEMUBH *bh;
ResetData *reset_info;
+ uint32_t tick_frequency = 100*1000000;
+ uint32_t stick_frequency = 100*1000000;
+ uint32_t hstick_frequency = 100*1000000;
+
if (!cpu_model)
cpu_model = hwdef->default_cpu_model;
env = cpu_init(cpu_model);
fprintf(stderr, "Unable to find Sparc CPU definition\n");
exit(1);
}
- bh = qemu_bh_new(tick_irq, env);
- env->tick = ptimer_init(bh);
- ptimer_set_period(env->tick, 1ULL);
- bh = qemu_bh_new(stick_irq, env);
- env->stick = ptimer_init(bh);
- ptimer_set_period(env->stick, 1ULL);
+ env->tick = cpu_timer_create("tick", env, tick_irq,
+ tick_frequency, TICK_NPT_MASK);
+
+ env->stick = cpu_timer_create("stick", env, stick_irq,
+ stick_frequency, TICK_INT_DIS);
- bh = qemu_bh_new(hstick_irq, env);
- env->hstick = ptimer_init(bh);
- ptimer_set_period(env->hstick, 1ULL);
+ env->hstick = cpu_timer_create("hstick", env, hstick_irq,
+ hstick_frequency, TICK_INT_DIS);
reset_info = qemu_mallocz(sizeof(ResetData));
reset_info->env = env;
const struct hwdef *hwdef)
{
CPUState *env;
- m48t59_t *nvram;
+ M48t59State *nvram;
unsigned int i;
long initrd_size, kernel_size;
PCIBus *pci_bus, *pci_bus2, *pci_bus3;
irq = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS);
pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, irq, &pci_bus2,
&pci_bus3);
- isa_mem_base = VGA_BASE;
+ isa_mem_base = APB_PCI_IO_BASE;
pci_vga_init(pci_bus, 0, 0);
// XXX Should be pci_bus3
i = 0;
if (hwdef->console_serial_base) {
serial_mm_init(hwdef->console_serial_base, 0, NULL, 115200,
- serial_hds[i], 1);
+ serial_hds[i], 1, 1);
i++;
}
for(; i < MAX_SERIAL_PORTS; i++) {
static const struct hwdef hwdefs[] = {
/* Sun4u generic PC-like machine */
{
- .default_cpu_model = "TI UltraSparc II",
+ .default_cpu_model = "TI UltraSparc IIi",
.machine_id = sun4u_id,
.prom_addr = 0x1fff0000000ULL,
.console_serial_base = 0,
projects / mirror_qemu.git / blobdiff