Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...

[sfrench/cifs-2.6.git] / arch / ia64 / kernel / iosapic.c

diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index cfe4654838f445423455979bca494d0e8fd1394a..398e2fd1cd2519ef2d6a2186308cd992073b0ec5 100644 (file)
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -199,19 +199,6 @@ static inline int __gsi_to_irq(unsigned int gsi)
        return -1;
 }
 
-/*
- * Translate GSI number to the corresponding IA-64 interrupt vector.  If no
- * entry exists, return -1.
- */
-inline int
-gsi_to_vector (unsigned int gsi)
-{
-       int irq = __gsi_to_irq(gsi);
-       if (check_irq_used(irq) < 0)
-               return -1;
-       return irq_to_vector(irq);
-}
-
 int
 gsi_to_irq (unsigned int gsi)
 {
@@ -429,7 +416,7 @@ iosapic_end_level_irq (unsigned int irq)
 #define iosapic_disable_level_irq      mask_irq
 #define iosapic_ack_level_irq          nop
 
-struct irq_chip irq_type_iosapic_level = {
+static struct irq_chip irq_type_iosapic_level = {
        .name =         "IO-SAPIC-level",
        .startup =      iosapic_startup_level_irq,
        .shutdown =     iosapic_shutdown_level_irq,
@@ -478,7 +465,7 @@ iosapic_ack_edge_irq (unsigned int irq)
 #define iosapic_disable_edge_irq       nop
 #define iosapic_end_edge_irq           nop
 
-struct irq_chip irq_type_iosapic_edge = {
+static struct irq_chip irq_type_iosapic_edge = {
        .name =         "IO-SAPIC-edge",
        .startup =      iosapic_startup_edge_irq,
        .shutdown =     iosapic_disable_edge_irq,
@@ -491,7 +478,7 @@ struct irq_chip irq_type_iosapic_edge = {
        .set_affinity = iosapic_set_affinity
 };
 
-unsigned int
+static unsigned int
 iosapic_version (char __iomem *addr)
 {
        /*
@@ -748,6 +735,15 @@ skip_numa_setup:
 #endif
 }
 
+static inline unsigned char choose_dmode(void)
+{
+#ifdef CONFIG_SMP
+       if (smp_int_redirect & SMP_IRQ_REDIRECTION)
+               return IOSAPIC_LOWEST_PRIORITY;
+#endif
+       return IOSAPIC_FIXED;
+}
+
 /*
  * ACPI can describe IOSAPIC interrupts via static tables and namespace
  * methods.  This provides an interface to register those interrupts and
@@ -762,6 +758,7 @@ iosapic_register_intr (unsigned int gsi,
        unsigned long flags;
        struct iosapic_rte_info *rte;
        u32 low32;
+       unsigned char dmode;
 
        /*
         * If this GSI has already been registered (i.e., it's a
@@ -791,8 +788,8 @@ iosapic_register_intr (unsigned int gsi,
 
        spin_lock(&irq_desc[irq].lock);
        dest = get_target_cpu(gsi, irq);
-       err = register_intr(gsi, irq, IOSAPIC_LOWEST_PRIORITY,
-                           polarity, trigger);
+       dmode = choose_dmode();
+       err = register_intr(gsi, irq, dmode, polarity, trigger);
        if (err < 0) {
                spin_unlock(&irq_desc[irq].lock);
                irq = err;
@@ -928,7 +925,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
              case ACPI_INTERRUPT_CPEI:
                irq = vector = IA64_CPE_VECTOR;
                BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
-               delivery = IOSAPIC_LOWEST_PRIORITY;
+               delivery = IOSAPIC_FIXED;
                mask = 1;
                break;
              default:
@@ -961,10 +958,12 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
 {
        int vector, irq;
        unsigned int dest = cpu_physical_id(smp_processor_id());
+       unsigned char dmode;
 
        irq = vector = isa_irq_to_vector(isa_irq);
        BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
-       register_intr(gsi, irq, IOSAPIC_LOWEST_PRIORITY, polarity, trigger);
+       dmode = choose_dmode();
+       register_intr(gsi, irq, dmode, polarity, trigger);
 
        DBG("ISA: IRQ %u -> GSI %u (%s,%s) -> CPU %d (0x%04x) vector %d\n",
            isa_irq, gsi, trigger == IOSAPIC_EDGE ? "edge" : "level",