Merge ../linus

[powerpc.git] / arch / x86_64 / kernel / io_apic.c

diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 38a3ff3..401b687 100644 (file)
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -319,7 +319,7 @@ void __init check_ioapic(void)
                                vendor &= 0xffff;
                                switch (vendor) { 
                                case PCI_VENDOR_ID_VIA:
-#ifdef CONFIG_GART_IOMMU
+#ifdef CONFIG_IOMMU
                                        if ((end_pfn > MAX_DMA32_PFN ||
                                             force_iommu) &&
                                            !iommu_aperture_allowed) {
@@ -836,14 +836,15 @@ u8 irq_vector[NR_IRQ_VECTORS] __read_mostly = { FIRST_DEVICE_VECTOR , 0 };
 int assign_irq_vector(int irq)
 {
        static int current_vector = FIRST_DEVICE_VECTOR, offset = 0;
+       unsigned long flags;
        int vector;
 
        BUG_ON(irq != AUTO_ASSIGN && (unsigned)irq >= NR_IRQ_VECTORS);
 
-       spin_lock(&vector_lock);
+       spin_lock_irqsave(&vector_lock, flags);
 
        if (irq != AUTO_ASSIGN && IO_APIC_VECTOR(irq) > 0) {
-               spin_unlock(&vector_lock);
+               spin_unlock_irqrestore(&vector_lock, flags);
                return IO_APIC_VECTOR(irq);
        }
 next:
@@ -862,7 +863,7 @@ next:
        if (irq != AUTO_ASSIGN)
                IO_APIC_VECTOR(irq) = vector;
 
-       spin_unlock(&vector_lock);
+       spin_unlock_irqrestore(&vector_lock, flags);
 
        return vector;
 }
@@ -875,15 +876,17 @@ static struct hw_interrupt_type ioapic_edge_type;
 #define IOAPIC_EDGE    0
 #define IOAPIC_LEVEL   1
 
-static inline void ioapic_register_intr(int irq, int vector, unsigned long trigger)
+static void ioapic_register_intr(int irq, int vector, unsigned long trigger)
 {
-       unsigned idx = use_pci_vector() && !platform_legacy_irq(irq) ? vector : irq;
+       unsigned idx;
+
+       idx = use_pci_vector() && !platform_legacy_irq(irq) ? vector : irq;
 
        if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) ||
                        trigger == IOAPIC_LEVEL)
-               irq_desc[idx].handler = &ioapic_level_type;
+               irq_desc[idx].chip = &ioapic_level_type;
        else
-               irq_desc[idx].handler = &ioapic_edge_type;
+               irq_desc[idx].chip = &ioapic_edge_type;
        set_intr_gate(vector, interrupt[idx]);
 }
 
@@ -985,7 +988,7 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
         * The timer IRQ doesn't have to know that behind the
         * scene we have a 8259A-master in AEOI mode ...
         */
-       irq_desc[0].handler = &ioapic_edge_type;
+       irq_desc[0].chip = &ioapic_edge_type;
 
        /*
         * Add it to the IO-APIC irq-routing table:
@@ -1615,6 +1618,13 @@ static void set_ioapic_affinity_vector (unsigned int vector,
 #endif // CONFIG_SMP
 #endif // CONFIG_PCI_MSI
 
+static int ioapic_retrigger(unsigned int irq)
+{
+       send_IPI_self(IO_APIC_VECTOR(irq));
+
+       return 1;
+}
+
 /*
  * Level and edge triggered IO-APIC interrupts need different handling,
  * so we use two separate IRQ descriptors. Edge triggered IRQs can be
@@ -1635,6 +1645,7 @@ static struct hw_interrupt_type ioapic_edge_type __read_mostly = {
 #ifdef CONFIG_SMP
        .set_affinity = set_ioapic_affinity,
 #endif
+       .retrigger      = ioapic_retrigger,
 };
 
 static struct hw_interrupt_type ioapic_level_type __read_mostly = {
@@ -1648,6 +1659,7 @@ static struct hw_interrupt_type ioapic_level_type __read_mostly = {
 #ifdef CONFIG_SMP
        .set_affinity = set_ioapic_affinity,
 #endif
+       .retrigger      = ioapic_retrigger,
 };
 
 static inline void init_IO_APIC_traps(void)
@@ -1682,7 +1694,7 @@ static inline void init_IO_APIC_traps(void)
                                make_8259A_irq(irq);
                        else
                                /* Strange. Oh, well.. */
-                               irq_desc[irq].handler = &no_irq_type;
+                               irq_desc[irq].chip = &no_irq_type;
                }
        }
 }
@@ -1899,7 +1911,7 @@ static inline void check_timer(void)
        apic_printk(APIC_VERBOSE, KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
 
        disable_8259A_irq(0);
-       irq_desc[0].handler = &lapic_irq_type;
+       irq_desc[0].chip = &lapic_irq_type;
        apic_write(APIC_LVT0, APIC_DM_FIXED | vector);  /* Fixed mode */
        enable_8259A_irq(0);