diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/slavio_intctl.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/hw/slavio_intctl.c b/hw/slavio_intctl.c index a2f085fef9..41651f68fd 100644 --- a/hw/slavio_intctl.c +++ b/hw/slavio_intctl.c @@ -80,7 +80,7 @@ typedef struct SLAVIO_CPUINTCTLState { #define CPU_IRQ_INT15_IN 0x0004000 #define CPU_IRQ_INT15_MASK 0x80000000 -static void slavio_check_interrupts(SLAVIO_INTCTLState *s); +static void slavio_check_interrupts(SLAVIO_INTCTLState *s, int set_irqs); // per-cpu interrupt controller static uint32_t slavio_intctl_mem_readl(void *opaque, target_phys_addr_t addr) @@ -116,14 +116,14 @@ static void slavio_intctl_mem_writel(void *opaque, target_phys_addr_t addr, val |= CPU_IRQ_INT15_MASK; val &= CPU_SOFTIRQ_MASK; s->intreg_pending &= ~val; - slavio_check_interrupts(s->master); + slavio_check_interrupts(s->master, 1); DPRINTF("Cleared cpu %d irq mask %x, curmask %x\n", s->cpu, val, s->intreg_pending); break; case 2: // set softint val &= CPU_SOFTIRQ_MASK; s->intreg_pending |= val; - slavio_check_interrupts(s->master); + slavio_check_interrupts(s->master, 1); DPRINTF("Set cpu %d irq mask %x, curmask %x\n", s->cpu, val, s->intreg_pending); break; @@ -185,20 +185,20 @@ static void slavio_intctlm_mem_writel(void *opaque, target_phys_addr_t addr, s->intregm_disabled &= ~val; DPRINTF("Enabled master irq mask %x, curmask %x\n", val, s->intregm_disabled); - slavio_check_interrupts(s); + slavio_check_interrupts(s, 1); break; case 3: // set (disable, clear pending) // Force clear unused bits val &= MASTER_IRQ_MASK; s->intregm_disabled |= val; s->intregm_pending &= ~val; - slavio_check_interrupts(s); + slavio_check_interrupts(s, 1); DPRINTF("Disabled master irq mask %x, curmask %x\n", val, s->intregm_disabled); break; case 4: s->target_cpu = val & (MAX_CPUS - 1); - slavio_check_interrupts(s); + slavio_check_interrupts(s, 1); DPRINTF("Set master irq cpu %d\n", s->target_cpu); break; default: @@ -249,7 +249,7 @@ void slavio_irq_info(Monitor *mon, void *opaque) #endif } -static void slavio_check_interrupts(SLAVIO_INTCTLState *s) +static void slavio_check_interrupts(SLAVIO_INTCTLState *s, int set_irqs) { uint32_t pending = s->intregm_pending, pil_pending; unsigned int i, j; @@ -268,13 +268,17 @@ static void slavio_check_interrupts(SLAVIO_INTCTLState *s) } pil_pending |= (s->slaves[i]->intreg_pending & CPU_SOFTIRQ_MASK) >> 16; - for (j = 0; j < MAX_PILS; j++) { - if (pil_pending & (1 << j)) { - if (!(s->pil_out[i] & (1 << j))) - qemu_irq_raise(s->cpu_irqs[i][j]); - } else { - if (s->pil_out[i] & (1 << j)) - qemu_irq_lower(s->cpu_irqs[i][j]); + if (set_irqs) { + for (j = 0; j < MAX_PILS; j++) { + if (pil_pending & (1 << j)) { + if (!(s->pil_out[i] & (1 << j))) { + qemu_irq_raise(s->cpu_irqs[i][j]); + } + } else { + if (s->pil_out[i] & (1 << j)) { + qemu_irq_lower(s->cpu_irqs[i][j]); + } + } } } s->pil_out[i] = pil_pending; @@ -304,7 +308,7 @@ static void slavio_set_irq(void *opaque, int irq, int level) s->intregm_pending &= ~mask; s->slaves[s->target_cpu]->intreg_pending &= ~(1 << pil); } - slavio_check_interrupts(s); + slavio_check_interrupts(s, 1); } } @@ -322,7 +326,7 @@ static void slavio_set_timer_irq_cpu(void *opaque, int cpu, int level) s->slaves[cpu]->intreg_pending &= ~s->cputimer_lbit; } - slavio_check_interrupts(s); + slavio_check_interrupts(s, 1); } static void slavio_intctl_save(QEMUFile *f, void *opaque) @@ -352,7 +356,7 @@ static int slavio_intctl_load(QEMUFile *f, void *opaque, int version_id) qemu_get_be32s(f, &s->intregm_pending); qemu_get_be32s(f, &s->intregm_disabled); qemu_get_be32s(f, &s->target_cpu); - slavio_check_interrupts(s); + slavio_check_interrupts(s, 0); return 0; } @@ -367,7 +371,7 @@ static void slavio_intctl_reset(void *opaque) s->intregm_disabled = ~MASTER_IRQ_MASK; s->intregm_pending = 0; s->target_cpu = 0; - slavio_check_interrupts(s); + slavio_check_interrupts(s, 0); } void *slavio_intctl_init(target_phys_addr_t addr, target_phys_addr_t addrg, |