void ioapic_set_legacy_irqmap(int irq, int gsi, enum intr_trigger trig, enum intr_polarity pola) { struct ioapic_irqinfo *info; struct ioapic_irqmap *map; void *ioaddr; int pin, cpuid; KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL); KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW); KKASSERT(irq >= 0 && irq < IOAPIC_HWI_VECTORS); if (irq > ioapic_abi_legacy_irq_max) ioapic_abi_legacy_irq_max = irq; cpuid = ioapic_abi_gsi_cpuid(irq, gsi); map = &ioapic_irqmaps[cpuid][irq]; KKASSERT(map->im_type == IOAPIC_IMT_UNUSED); map->im_type = IOAPIC_IMT_LEGACY; map->im_gsi = gsi; map->im_trig = trig; map->im_pola = pola; if (bootverbose) { kprintf("IOAPIC: irq %d -> gsi %d %s/%s\n", irq, map->im_gsi, intr_str_trigger(map->im_trig), intr_str_polarity(map->im_pola)); } pin = ioapic_gsi_pin(map->im_gsi); ioaddr = ioapic_gsi_ioaddr(map->im_gsi); info = &ioapic_irqs[irq]; imen_lock(); info->io_addr = ioaddr; info->io_idx = IOAPIC_REDTBL + (2 * pin); info->io_flags = IOAPIC_IRQI_FLAG_MASKED; if (map->im_trig == INTR_TRIGGER_LEVEL) info->io_flags |= IOAPIC_IRQI_FLAG_LEVEL; ioapic_pin_setup(ioaddr, pin, IDT_OFFSET + irq, map->im_trig, map->im_pola, cpuid); imen_unlock(); }
static void ioapic_abi_legacy_intr_config(int irq, enum intr_trigger trig, enum intr_polarity pola) { struct ioapic_irqinfo *info; struct ioapic_irqmap *map = NULL; void *ioaddr; int pin, cpuid; KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL); KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW); KKASSERT(irq >= 0 && irq < ioapic_abi_legacy_irq_max); for (cpuid = 0; cpuid < ncpus; ++cpuid) { map = &ioapic_irqmaps[cpuid][irq]; if (map->im_type == IOAPIC_IMT_LEGACY) break; } KKASSERT(cpuid < ncpus); #ifdef notyet if (map->im_flags & IOAPIC_IMF_CONF) { if (trig != map->im_trig) { panic("ioapic_intr_config: trig %s -> %s\n", intr_str_trigger(map->im_trig), intr_str_trigger(trig)); } if (pola != map->im_pola) { panic("ioapic_intr_config: pola %s -> %s\n", intr_str_polarity(map->im_pola), intr_str_polarity(pola)); } return; } #endif map->im_flags |= IOAPIC_IMF_CONF; if (trig == map->im_trig && pola == map->im_pola) return; if (bootverbose) { kprintf("IOAPIC: irq %d, gsi %d %s/%s -> %s/%s\n", irq, map->im_gsi, intr_str_trigger(map->im_trig), intr_str_polarity(map->im_pola), intr_str_trigger(trig), intr_str_polarity(pola)); } map->im_trig = trig; map->im_pola = pola; pin = ioapic_gsi_pin(map->im_gsi); ioaddr = ioapic_gsi_ioaddr(map->im_gsi); info = &ioapic_irqs[irq]; imen_lock(); info->io_flags &= ~IOAPIC_IRQI_FLAG_LEVEL; if (map->im_trig == INTR_TRIGGER_LEVEL) info->io_flags |= IOAPIC_IRQI_FLAG_LEVEL; ioapic_pin_setup(ioaddr, pin, IDT_OFFSET + irq, map->im_trig, map->im_pola, cpuid); imen_unlock(); }
void ioapic_set_legacy_irqmap(int irq, int gsi, enum intr_trigger trig, enum intr_polarity pola) { struct ioapic_irqinfo *info; struct ioapic_irqmap *map; void *ioaddr; int pin, cpuid; KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL); KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW); KKASSERT(irq >= 0); if (irq >= IOAPIC_HWI_VECTORS) { /* * Some BIOSes seem to assume that all 256 IDT vectors * could be used, while we limit the available IDT * vectors to 192; find an unused IRQ for this GSI. */ irq = ioapic_find_unused_irqmap(gsi); if (irq < 0) { kprintf("failed to find unused irq for gsi %d, " "overflow\n", gsi); return; } } KKASSERT(irq < IOAPIC_HWI_VECTORS); cpuid = ioapic_abi_gsi_cpuid(irq, gsi); map = &ioapic_irqmaps[cpuid][irq]; if (map->im_type != IOAPIC_IMT_UNUSED) { /* * There are so many IOAPICs, that 1:1 mapping * of GSI and IRQ hits SYSCALL entry. */ irq = ioapic_find_unused_irqmap(gsi); if (irq < 0) { kprintf("failed to find unused irq for gsi %d, " "conflict\n", gsi); return; } KKASSERT(irq < IOAPIC_HWI_VECTORS); cpuid = ioapic_abi_gsi_cpuid(irq, gsi); map = &ioapic_irqmaps[cpuid][irq]; } if (irq > ioapic_abi_legacy_irq_max) ioapic_abi_legacy_irq_max = irq; KKASSERT(map->im_type == IOAPIC_IMT_UNUSED); map->im_type = IOAPIC_IMT_LEGACY; map->im_gsi = gsi; map->im_trig = trig; map->im_pola = pola; if (bootverbose) { kprintf("IOAPIC: irq %d -> gsi %d %s/%s\n", irq, map->im_gsi, intr_str_trigger(map->im_trig), intr_str_polarity(map->im_pola)); } pin = ioapic_gsi_pin(map->im_gsi); ioaddr = ioapic_gsi_ioaddr(map->im_gsi); info = &ioapic_irqs[irq]; imen_lock(); info->io_addr = ioaddr; info->io_idx = IOAPIC_REDTBL + (2 * pin); info->io_flags = IOAPIC_IRQI_FLAG_MASKED; if (map->im_trig == INTR_TRIGGER_LEVEL) info->io_flags |= IOAPIC_IRQI_FLAG_LEVEL; ioapic_pin_setup(ioaddr, pin, IDT_OFFSET + irq, map->im_trig, map->im_pola, cpuid); imen_unlock(); }