diff options
Diffstat (limited to 'hw/intc/mips_gic.c')
-rw-r--r-- | hw/intc/mips_gic.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/hw/intc/mips_gic.c b/hw/intc/mips_gic.c index 6e257730f8..15e6e40f9f 100644 --- a/hw/intc/mips_gic.c +++ b/hw/intc/mips_gic.c @@ -20,31 +20,29 @@ #include "kvm_mips.h" #include "hw/intc/mips_gic.h" -static void mips_gic_set_vp_irq(MIPSGICState *gic, int vp, int pin, int level) +static void mips_gic_set_vp_irq(MIPSGICState *gic, int vp, int pin) { - int ored_level = level; + int ored_level = 0; int i; /* ORing pending registers sharing same pin */ - if (!ored_level) { - for (i = 0; i < gic->num_irq; i++) { - if ((gic->irq_state[i].map_pin & GIC_MAP_MSK) == pin && - gic->irq_state[i].map_vp == vp && - gic->irq_state[i].enabled) { - ored_level |= gic->irq_state[i].pending; - } - if (ored_level) { - /* no need to iterate all interrupts */ - break; - } + for (i = 0; i < gic->num_irq; i++) { + if ((gic->irq_state[i].map_pin & GIC_MAP_MSK) == pin && + gic->irq_state[i].map_vp == vp && + gic->irq_state[i].enabled) { + ored_level |= gic->irq_state[i].pending; } - if (((gic->vps[vp].compare_map & GIC_MAP_MSK) == pin) && - (gic->vps[vp].mask & GIC_VP_MASK_CMP_MSK)) { - /* ORing with local pending register (count/compare) */ - ored_level |= (gic->vps[vp].pend & GIC_VP_MASK_CMP_MSK) >> - GIC_VP_MASK_CMP_SHF; + if (ored_level) { + /* no need to iterate all interrupts */ + break; } } + if (((gic->vps[vp].compare_map & GIC_MAP_MSK) == pin) && + (gic->vps[vp].mask & GIC_VP_MASK_CMP_MSK)) { + /* ORing with local pending register (count/compare) */ + ored_level |= (gic->vps[vp].pend & GIC_VP_MASK_CMP_MSK) >> + GIC_VP_MASK_CMP_SHF; + } if (kvm_enabled()) { kvm_mips_set_ipi_interrupt(mips_env_get_cpu(gic->vps[vp].env), pin + GIC_CPU_PIN_OFFSET, @@ -55,21 +53,27 @@ static void mips_gic_set_vp_irq(MIPSGICState *gic, int vp, int pin, int level) } } -static void gic_set_irq(void *opaque, int n_IRQ, int level) +static void gic_update_pin_for_irq(MIPSGICState *gic, int n_IRQ) { - MIPSGICState *gic = (MIPSGICState *) opaque; int vp = gic->irq_state[n_IRQ].map_vp; int pin = gic->irq_state[n_IRQ].map_pin & GIC_MAP_MSK; + if (vp < 0 || vp >= gic->num_vps) { + return; + } + mips_gic_set_vp_irq(gic, vp, pin); +} + +static void gic_set_irq(void *opaque, int n_IRQ, int level) +{ + MIPSGICState *gic = (MIPSGICState *) opaque; + gic->irq_state[n_IRQ].pending = (uint8_t) level; if (!gic->irq_state[n_IRQ].enabled) { /* GIC interrupt source disabled */ return; } - if (vp < 0 || vp >= gic->num_vps) { - return; - } - mips_gic_set_vp_irq(gic, vp, pin, level); + gic_update_pin_for_irq(gic, n_IRQ); } #define OFFSET_CHECK(c) \ @@ -209,7 +213,7 @@ static void gic_timer_store_vp_compare(MIPSGICState *gic, uint32_t vp_index, gic->vps[vp_index].pend &= ~(1 << GIC_LOCAL_INT_COMPARE); if (gic->vps[vp_index].compare_map & GIC_MAP_TO_PIN_MSK) { uint32_t pin = (gic->vps[vp_index].compare_map & GIC_MAP_MSK); - mips_gic_set_vp_irq(gic, vp_index, pin, 0); + mips_gic_set_vp_irq(gic, vp_index, pin); } mips_gictimer_store_vp_compare(gic->gic_timer, vp_index, compare); } @@ -286,6 +290,7 @@ static void gic_write(void *opaque, hwaddr addr, uint64_t data, unsigned size) OFFSET_CHECK((base + size * 8) <= gic->num_irq); for (i = 0; i < size * 8; i++) { gic->irq_state[base + i].enabled &= !((data >> i) & 1); + gic_update_pin_for_irq(gic, base + i); } break; case GIC_SH_WEDGE_OFS: @@ -305,6 +310,7 @@ static void gic_write(void *opaque, hwaddr addr, uint64_t data, unsigned size) OFFSET_CHECK((base + size * 8) <= gic->num_irq); for (i = 0; i < size * 8; i++) { gic->irq_state[base + i].enabled |= (data >> i) & 1; + gic_update_pin_for_irq(gic, base + i); } break; case GIC_SH_MAP0_PIN_OFS ... GIC_SH_MAP255_PIN_OFS: |