diff options
Diffstat (limited to 'arch/mips/sgi-ip27/ip27-irq.c')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-irq.c | 38 |
1 files changed, 16 insertions, 22 deletions
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 42df9fafa943..20ef663af16e 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -9,6 +9,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/irqdomain.h> #include <linux/ioport.h> #include <linux/kernel.h> #include <linux/bitops.h> @@ -22,6 +23,8 @@ #include <asm/sn/intr.h> #include <asm/sn/irq_alloc.h> +#include "ip27-common.h" + struct hub_irq_data { u64 *irq_mask[2]; cpuid_t cpu; @@ -162,7 +165,7 @@ static void hub_domain_free(struct irq_domain *domain, return; irqd = irq_domain_get_irq_data(domain, virq); - if (irqd && irqd->chip_data) + if (irqd) kfree(irqd->chip_data); } @@ -189,7 +192,7 @@ static void ip27_do_irq_mask0(struct irq_desc *desc) unsigned long *mask = per_cpu(irq_enable_mask, cpu); struct irq_domain *domain; u64 pend0; - int irq; + int ret; /* copied from Irix intpend0() */ pend0 = LOCAL_HUB_L(PI_INT_PEND0); @@ -215,10 +218,8 @@ static void ip27_do_irq_mask0(struct irq_desc *desc) #endif { domain = irq_desc_get_handler_data(desc); - irq = irq_linear_revmap(domain, __ffs(pend0)); - if (irq) - generic_handle_irq(irq); - else + ret = generic_handle_domain_irq(domain, __ffs(pend0)); + if (ret) spurious_interrupt(); } @@ -231,7 +232,7 @@ static void ip27_do_irq_mask1(struct irq_desc *desc) unsigned long *mask = per_cpu(irq_enable_mask, cpu); struct irq_domain *domain; u64 pend1; - int irq; + int ret; /* copied from Irix intpend0() */ pend1 = LOCAL_HUB_L(PI_INT_PEND1); @@ -241,10 +242,8 @@ static void ip27_do_irq_mask1(struct irq_desc *desc) return; domain = irq_desc_get_handler_data(desc); - irq = irq_linear_revmap(domain, __ffs(pend1) + 64); - if (irq) - generic_handle_irq(irq); - else + ret = generic_handle_domain_irq(domain, __ffs(pend1) + 64); + if (ret) spurious_interrupt(); LOCAL_HUB_L(PI_INT_PEND1); @@ -278,7 +277,6 @@ void __init arch_init_irq(void) { struct irq_domain *domain; struct fwnode_handle *fn; - int i; mips_cpu_irq_init(); @@ -287,23 +285,19 @@ void __init arch_init_irq(void) * Mark these as reserved right away so they won't be used accidentally * later. */ - for (i = 0; i <= CPU_CALL_B_IRQ; i++) - set_bit(i, hub_irq_map); - - for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++) - set_bit(i, hub_irq_map); + bitmap_set(hub_irq_map, 0, CPU_CALL_B_IRQ + 1); + bitmap_set(hub_irq_map, NI_BRDCAST_ERR_A, MSC_PANIC_INTR - NI_BRDCAST_ERR_A + 1); fn = irq_domain_alloc_named_fwnode("HUB"); - WARN_ON(fn == NULL); - if (!fn) + if (WARN_ON(fn == NULL)) return; + domain = irq_domain_create_linear(fn, IP27_HUB_IRQ_COUNT, &hub_domain_ops, NULL); - WARN_ON(domain == NULL); - if (!domain) + if (WARN_ON(domain == NULL)) return; - irq_set_default_host(domain); + irq_set_default_domain(domain); irq_set_percpu_devid(IP27_HUB_PEND0_IRQ); irq_set_chained_handler_and_data(IP27_HUB_PEND0_IRQ, ip27_do_irq_mask0, |