fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / xen / core / evtchn.c

diff --git a/drivers/xen/core/evtchn.c b/drivers/xen/core/evtchn.c
index 69541c6..f678cf1 100644 (file)
--- a/drivers/xen/core/evtchn.c
+++ b/drivers/xen/core/evtchn.c
@@ -30,7 +30,6 @@
  * IN THE SOFTWARE.
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
@@ -374,7 +373,7 @@ static void unbind_from_irq(unsigned int irq)
 
 int bind_evtchn_to_irqhandler(
        unsigned int evtchn,
-       irqreturn_t (*handler)(int, void *, struct pt_regs *),
+       irq_handler_t handler,
        unsigned long irqflags,
        const char *devname,
        void *dev_id)
@@ -396,7 +395,7 @@ EXPORT_SYMBOL_GPL(bind_evtchn_to_irqhandler);
 int bind_virq_to_irqhandler(
        unsigned int virq,
        unsigned int cpu,
-       irqreturn_t (*handler)(int, void *, struct pt_regs *),
+       irq_handler_t handler,
        unsigned long irqflags,
        const char *devname,
        void *dev_id)
@@ -418,7 +417,7 @@ EXPORT_SYMBOL_GPL(bind_virq_to_irqhandler);
 int bind_ipi_to_irqhandler(
        unsigned int ipi,
        unsigned int cpu,
-       irqreturn_t (*handler)(int, void *, struct pt_regs *),
+       irq_handler_t handler,
        unsigned long irqflags,
        const char *devname,
        void *dev_id)
@@ -473,11 +472,21 @@ static void set_affinity_irq(unsigned irq, cpumask_t dest)
        rebind_irq_to_cpu(irq, tcpu);
 }
 
+static int retrigger_vector(unsigned int irq)
+{
+       int evtchn = evtchn_from_irq(irq);
+       shared_info_t *s = HYPERVISOR_shared_info;
+       if (!VALID_EVTCHN(evtchn))
+               return 1;
+       synch_set_bit(evtchn, &s->evtchn_pending[0]);
+       return 1;
+}
+
 /*
  * Interface to generic handling in irq.c
  */
 
-static unsigned int startup_dynirq(unsigned int irq)
+static unsigned int startup_dynirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -486,15 +495,7 @@ static unsigned int startup_dynirq(unsigned int irq)
        return 0;
 }
 
-static void shutdown_dynirq(unsigned int irq)
-{
-       int evtchn = evtchn_from_irq(irq);
-
-       if (VALID_EVTCHN(evtchn))
-               mask_evtchn(evtchn);
-}
-
-static void enable_dynirq(unsigned int irq)
+static void unmask_dynirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -502,7 +503,7 @@ static void enable_dynirq(unsigned int irq)
                unmask_evtchn(evtchn);
 }
 
-static void disable_dynirq(unsigned int irq)
+static void mask_dynirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -510,7 +511,7 @@ static void disable_dynirq(unsigned int irq)
                mask_evtchn(evtchn);
 }
 
-static void ack_dynirq(unsigned int irq)
+static void ack_dynirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -522,7 +523,7 @@ static void ack_dynirq(unsigned int irq)
        }
 }
 
-static void end_dynirq(unsigned int irq)
+static void ack_dynirq_quirk_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -530,15 +531,17 @@ static void end_dynirq(unsigned int irq)
                unmask_evtchn(evtchn);
 }
 
-static struct hw_interrupt_type dynirq_type = {
-       "Dynamic-irq",
-       startup_dynirq,
-       shutdown_dynirq,
-       enable_dynirq,
-       disable_dynirq,
-       ack_dynirq,
-       end_dynirq,
-       set_affinity_irq
+static struct irq_chip dynirq_chip = {
+       .name           = "Dynamic-irq",
+       .startup        = startup_dynirq_vector,
+       .mask           = mask_dynirq_vector,
+       .unmask         = unmask_dynirq_vector,
+       .ack            = ack_dynirq_vector,
+       .eoi            = ack_dynirq_quirk_vector,
+#ifdef CONFIG_SMP
+       .set_affinity   = set_affinity_irq,
+#endif
+       .retrigger      = retrigger_vector,
 };
 
 static inline void pirq_unmask_notify(int pirq)
@@ -564,7 +567,7 @@ static inline void pirq_query_unmask(int pirq)
  */
 #define probing_irq(_irq) (irq_desc[(_irq)].action == NULL)
 
-static unsigned int startup_pirq(unsigned int irq)
+static unsigned int startup_pirq_vector(unsigned int irq)
 {
        struct evtchn_bind_pirq bind_pirq;
        int evtchn = evtchn_from_irq(irq);
@@ -596,26 +599,7 @@ static unsigned int startup_pirq(unsigned int irq)
        return 0;
 }
 
-static void shutdown_pirq(unsigned int irq)
-{
-       struct evtchn_close close;
-       int evtchn = evtchn_from_irq(irq);
-
-       if (!VALID_EVTCHN(evtchn))
-               return;
-
-       mask_evtchn(evtchn);
-
-       close.port = evtchn;
-       if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0)
-               BUG();
-
-       bind_evtchn_to_cpu(evtchn, 0);
-       evtchn_to_irq[evtchn] = -1;
-       irq_info[irq] = IRQ_UNBOUND;
-}
-
-static void enable_pirq(unsigned int irq)
+static void unmask_pirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -625,7 +609,7 @@ static void enable_pirq(unsigned int irq)
        }
 }
 
-static void disable_pirq(unsigned int irq)
+static void mask_pirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -633,7 +617,7 @@ static void disable_pirq(unsigned int irq)
                mask_evtchn(evtchn);
 }
 
-static void ack_pirq(unsigned int irq)
+static void ack_pirq_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -645,7 +629,7 @@ static void ack_pirq(unsigned int irq)
        }
 }
 
-static void end_pirq(unsigned int irq)
+static void ack_pirq_quirk_vector(unsigned int irq)
 {
        int evtchn = evtchn_from_irq(irq);
 
@@ -655,15 +639,17 @@ static void end_pirq(unsigned int irq)
        }
 }
 
-static struct hw_interrupt_type pirq_type = {
-       "Phys-irq",
-       startup_pirq,
-       shutdown_pirq,
-       enable_pirq,
-       disable_pirq,
-       ack_pirq,
-       end_pirq,
-       set_affinity_irq
+static struct  irq_chip pirq_chip = {
+       .name           = "Phys-irq",
+       .startup        = startup_pirq_vector,
+       .mask           = mask_pirq_vector,
+       .unmask         = unmask_pirq_vector,
+       .ack            = ack_pirq_vector,
+       .eoi            = ack_pirq_quirk_vector,
+#ifdef CONFIG_SMP
+       .set_affinity   = set_affinity_irq,
+#endif
+       .retrigger      = retrigger_vector,
 };
 
 int irq_ignore_unhandled(unsigned int irq)
@@ -677,7 +663,7 @@ int irq_ignore_unhandled(unsigned int irq)
        return !!(irq_status.flags & XENIRQSTAT_shared);
 }
 
-void resend_irq_on_evtchn(struct hw_interrupt_type *h, unsigned int i)
+void resend_irq_on_evtchn(unsigned int i)
 {
        int evtchn = evtchn_from_irq(i);
        shared_info_t *s = HYPERVISOR_shared_info;
@@ -831,7 +817,8 @@ void __init xen_init_IRQ(void)
                irq_desc[dynirq_to_irq(i)].status  = IRQ_DISABLED;
                irq_desc[dynirq_to_irq(i)].action  = NULL;
                irq_desc[dynirq_to_irq(i)].depth   = 1;
-               irq_desc[dynirq_to_irq(i)].handler = &dynirq_type;
+               set_irq_chip_and_handler_name(dynirq_to_irq(i), &dynirq_chip,
+                                             handle_level_irq, "level");
        }
 
        /* Phys IRQ space is statically bound (1:1 mapping). Nail refcnts. */
@@ -840,14 +827,14 @@ void __init xen_init_IRQ(void)
 
 #ifdef RTC_IRQ
                /* If not domain 0, force our RTC driver to fail its probe. */
-               if ((i == RTC_IRQ) &&
-                   !(xen_start_info->flags & SIF_INITDOMAIN))
+               if ((i == RTC_IRQ) && !is_initial_xendomain())
                        continue;
 #endif
 
                irq_desc[pirq_to_irq(i)].status  = IRQ_DISABLED;
                irq_desc[pirq_to_irq(i)].action  = NULL;
                irq_desc[pirq_to_irq(i)].depth   = 1;
-               irq_desc[pirq_to_irq(i)].handler = &pirq_type;
+               set_irq_chip_and_handler_name(pirq_to_irq(i), &pirq_chip,
+                                             handle_level_irq, "level");
        }
 }