Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

[pandora-kernel.git] / arch / ia64 / kernel / irq_ia64.c

diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 4fe60c7..a041367 100644 (file)
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -14,7 +14,6 @@
  *                                             Added CPU Hotplug handling for IPF.
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 
 #include <linux/jiffies.h>
@@ -46,6 +45,10 @@
 
 #define IRQ_DEBUG      0
 
+/* These can be overridden in platform_irq_init */
+int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR;
+int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
+
 /* default base addr of IPI table */
 void __iomem *ipi_base_addr = ((void __iomem *)
                               (__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR));
@@ -60,33 +63,22 @@ __u8 isa_irq_to_vector_map[16] = {
 };
 EXPORT_SYMBOL(isa_irq_to_vector_map);
 
-static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_NUM_DEVICE_VECTORS)];
+static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_MAX_DEVICE_VECTORS)];
 
 int
-assign_irq_vector_nopanic (int irq)
+assign_irq_vector (int irq)
 {
        int pos, vector;
  again:
        pos = find_first_zero_bit(ia64_vector_mask, IA64_NUM_DEVICE_VECTORS);
        vector = IA64_FIRST_DEVICE_VECTOR + pos;
        if (vector > IA64_LAST_DEVICE_VECTOR)
-               return -1;
+               return -ENOSPC;
        if (test_and_set_bit(pos, ia64_vector_mask))
                goto again;
        return vector;
 }
 
-int
-assign_irq_vector (int irq)
-{
-       int vector = assign_irq_vector_nopanic(irq);
-
-       if (vector < 0)
-               panic("assign_irq_vector: out of interrupt vectors!");
-
-       return vector;
-}
-
 void
 free_irq_vector (int vector)
 {
@@ -100,6 +92,19 @@ free_irq_vector (int vector)
                printk(KERN_WARNING "%s: double free!\n", __FUNCTION__);
 }
 
+int
+reserve_irq_vector (int vector)
+{
+       int pos;
+
+       if (vector < IA64_FIRST_DEVICE_VECTOR ||
+           vector > IA64_LAST_DEVICE_VECTOR)
+               return -EINVAL;
+
+       pos = vector - IA64_FIRST_DEVICE_VECTOR;
+       return test_and_set_bit(pos, ia64_vector_mask);
+}
+
 #ifdef CONFIG_SMP
 #      define IS_RESCHEDULE(vec)       (vec == IA64_IPI_RESCHEDULE)
 #else
@@ -230,7 +235,7 @@ extern irqreturn_t handle_IPI (int irq, void *dev_id, struct pt_regs *regs);
 
 static struct irqaction ipi_irqaction = {
        .handler =      handle_IPI,
-       .flags =        SA_INTERRUPT,
+       .flags =        IRQF_DISABLED,
        .name =         "IPI"
 };
 #endif
@@ -243,9 +248,9 @@ register_percpu_irq (ia64_vector vec, struct irqaction *action)
 
        for (irq = 0; irq < NR_IRQS; ++irq)
                if (irq_to_vector(irq) == vec) {
-                       desc = irq_descp(irq);
+                       desc = irq_desc + irq;
                        desc->status |= IRQ_PER_CPU;
-                       desc->handler = &irq_type_ia64_lsapic;
+                       desc->chip = &irq_type_ia64_lsapic;
                        if (action)
                                setup_irq(irq, action);
                }