Merge branch 'x86/urgent' into x86/irq

[deliverable/linux.git] / arch / x86 / kernel / apic / io_apic.c

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index c64ddd9d9979c105a6ac4c8e0b96ea4023439ef3..527390cd6115d69bdfd39aa0de04962eda12cf15 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1538,6 +1538,56 @@ static void __init setup_IO_APIC_irqs(void)
                        " (apicid-pin) not connected\n");
 }
 
+/*
+ * for the gsit that is not in first ioapic
+ * but could not use acpi_register_gsi()
+ * like some special sci in IBM x3330
+ */
+void setup_IO_APIC_irq_extra(u32 gsi)
+{
+       int apic_id = 0, pin, idx, irq;
+       int node = cpu_to_node(boot_cpu_id);
+       struct irq_desc *desc;
+       struct irq_cfg *cfg;
+
+       /*
+        * Convert 'gsi' to 'ioapic.pin'.
+        */
+       apic_id = mp_find_ioapic(gsi);
+       if (apic_id < 0)
+               return;
+
+       pin = mp_find_ioapic_pin(apic_id, gsi);
+       idx = find_irq_entry(apic_id, pin, mp_INT);
+       if (idx == -1)
+               return;
+
+       irq = pin_2_irq(idx, apic_id, pin);
+#ifdef CONFIG_SPARSE_IRQ
+       desc = irq_to_desc(irq);
+       if (desc)
+               return;
+#endif
+       desc = irq_to_desc_alloc_node(irq, node);
+       if (!desc) {
+               printk(KERN_INFO "can not get irq_desc for %d\n", irq);
+               return;
+       }
+
+       cfg = desc->chip_data;
+       add_pin_to_irq_node(cfg, node, apic_id, pin);
+
+       if (test_bit(pin, mp_ioapic_routing[apic_id].pin_programmed)) {
+               pr_debug("Pin %d-%d already programmed\n",
+                        mp_ioapics[apic_id].apicid, pin);
+               return;
+       }
+       set_bit(pin, mp_ioapic_routing[apic_id].pin_programmed);
+
+       setup_IO_APIC_irq(apic_id, pin, irq, desc,
+                       irq_trigger(idx), irq_polarity(idx));
+}
+
 /*
  * Set up the timer pin, possibly with the 8259A-master behind.
  */
@@ -3252,14 +3302,12 @@ int create_irq(void)
 void destroy_irq(unsigned int irq)
 {
        unsigned long flags;
-       struct irq_cfg *cfg;
 
        dynamic_irq_cleanup_keep_chip_data(irq);
 
        free_irte(irq);
        spin_lock_irqsave(&vector_lock, flags);
-       cfg = irq_to_desc(irq)->chip_data;
-       __clear_irq_vector(irq, cfg);
+       __clear_irq_vector(irq, get_irq_chip_data(irq));
        spin_unlock_irqrestore(&vector_lock, flags);
 }