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Diffstat (limited to 'arch/i386/kernel/io_apic.c')
-rw-r--r--arch/i386/kernel/io_apic.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 72ae414e4d49..ec9ea0269d36 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -581,7 +581,7 @@ static int balanced_irq(void *unused)
581 581
582 /* push everything to CPU 0 to give us a starting point. */ 582 /* push everything to CPU 0 to give us a starting point. */
583 for (i = 0 ; i < NR_IRQS ; i++) { 583 for (i = 0 ; i < NR_IRQS ; i++) {
584 pending_irq_cpumask[i] = cpumask_of_cpu(0); 584 irq_desc[i].pending_mask = cpumask_of_cpu(0);
585 set_pending_irq(i, cpumask_of_cpu(0)); 585 set_pending_irq(i, cpumask_of_cpu(0));
586 } 586 }
587 587
@@ -1205,15 +1205,17 @@ static struct hw_interrupt_type ioapic_edge_type;
1205#define IOAPIC_EDGE 0 1205#define IOAPIC_EDGE 0
1206#define IOAPIC_LEVEL 1 1206#define IOAPIC_LEVEL 1
1207 1207
1208static inline void ioapic_register_intr(int irq, int vector, unsigned long trigger) 1208static void ioapic_register_intr(int irq, int vector, unsigned long trigger)
1209{ 1209{
1210 unsigned idx = use_pci_vector() && !platform_legacy_irq(irq) ? vector : irq; 1210 unsigned idx;
1211
1212 idx = use_pci_vector() && !platform_legacy_irq(irq) ? vector : irq;
1211 1213
1212 if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) || 1214 if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) ||
1213 trigger == IOAPIC_LEVEL) 1215 trigger == IOAPIC_LEVEL)
1214 irq_desc[idx].handler = &ioapic_level_type; 1216 irq_desc[idx].chip = &ioapic_level_type;
1215 else 1217 else
1216 irq_desc[idx].handler = &ioapic_edge_type; 1218 irq_desc[idx].chip = &ioapic_edge_type;
1217 set_intr_gate(vector, interrupt[idx]); 1219 set_intr_gate(vector, interrupt[idx]);
1218} 1220}
1219 1221
@@ -1325,7 +1327,7 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
1325 * The timer IRQ doesn't have to know that behind the 1327 * The timer IRQ doesn't have to know that behind the
1326 * scene we have a 8259A-master in AEOI mode ... 1328 * scene we have a 8259A-master in AEOI mode ...
1327 */ 1329 */
1328 irq_desc[0].handler = &ioapic_edge_type; 1330 irq_desc[0].chip = &ioapic_edge_type;
1329 1331
1330 /* 1332 /*
1331 * Add it to the IO-APIC irq-routing table: 1333 * Add it to the IO-APIC irq-routing table:
@@ -2069,6 +2071,13 @@ static void set_ioapic_affinity_vector (unsigned int vector,
2069#endif 2071#endif
2070#endif 2072#endif
2071 2073
2074static int ioapic_retrigger(unsigned int irq)
2075{
2076 send_IPI_self(IO_APIC_VECTOR(irq));
2077
2078 return 1;
2079}
2080
2072/* 2081/*
2073 * Level and edge triggered IO-APIC interrupts need different handling, 2082 * Level and edge triggered IO-APIC interrupts need different handling,
2074 * so we use two separate IRQ descriptors. Edge triggered IRQs can be 2083 * so we use two separate IRQ descriptors. Edge triggered IRQs can be
@@ -2088,6 +2097,7 @@ static struct hw_interrupt_type ioapic_edge_type __read_mostly = {
2088#ifdef CONFIG_SMP 2097#ifdef CONFIG_SMP
2089 .set_affinity = set_ioapic_affinity, 2098 .set_affinity = set_ioapic_affinity,
2090#endif 2099#endif
2100 .retrigger = ioapic_retrigger,
2091}; 2101};
2092 2102
2093static struct hw_interrupt_type ioapic_level_type __read_mostly = { 2103static struct hw_interrupt_type ioapic_level_type __read_mostly = {
@@ -2101,6 +2111,7 @@ static struct hw_interrupt_type ioapic_level_type __read_mostly = {
2101#ifdef CONFIG_SMP 2111#ifdef CONFIG_SMP
2102 .set_affinity = set_ioapic_affinity, 2112 .set_affinity = set_ioapic_affinity,
2103#endif 2113#endif
2114 .retrigger = ioapic_retrigger,
2104}; 2115};
2105 2116
2106static inline void init_IO_APIC_traps(void) 2117static inline void init_IO_APIC_traps(void)
@@ -2135,7 +2146,7 @@ static inline void init_IO_APIC_traps(void)
2135 make_8259A_irq(irq); 2146 make_8259A_irq(irq);
2136 else 2147 else
2137 /* Strange. Oh, well.. */ 2148 /* Strange. Oh, well.. */
2138 irq_desc[irq].handler = &no_irq_type; 2149 irq_desc[irq].chip = &no_irq_type;
2139 } 2150 }
2140 } 2151 }
2141} 2152}
@@ -2351,7 +2362,7 @@ static inline void check_timer(void)
2351 printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ..."); 2362 printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
2352 2363
2353 disable_8259A_irq(0); 2364 disable_8259A_irq(0);
2354 irq_desc[0].handler = &lapic_irq_type; 2365 irq_desc[0].chip = &lapic_irq_type;
2355 apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */ 2366 apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */
2356 enable_8259A_irq(0); 2367 enable_8259A_irq(0);
2357 2368