[Xen-devel] [PATCH 15/17] xen: set pirq name to something useful.

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

From: Gerd Hoffmann <kraxel@xxxxxxxxxxxxxxxxxxxx>

Make pirq show useful information in /proc/interrupts

[ Impact: better output in /proc/interrupts ]

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
 arch/x86/xen/pci.c   |    3 ++-
 drivers/xen/events.c |    4 ++--
 include/xen/events.h |    2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/xen/pci.c b/arch/x86/xen/pci.c
index 381b7ab..4b286f1 100644
--- a/arch/x86/xen/pci.c
+++ b/arch/x86/xen/pci.c
@@ -49,7 +49,8 @@ int xen_register_gsi(u32 gsi, int triggering, int polarity)
        printk(KERN_DEBUG "xen: registering gsi %u triggering %d polarity %d\n",
               gsi, triggering, polarity);
 
-       irq = xen_allocate_pirq(gsi);
+       irq = xen_allocate_pirq(gsi, (triggering == ACPI_EDGE_SENSITIVE)
+                                    ? "ioapic-edge" : "ioapic-level");
 
        printk(KERN_DEBUG "xen: --> irq=%d\n", irq);
 
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index e6ddf78..f84d13b 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -532,7 +532,7 @@ static int find_irq_by_gsi(unsigned gsi)
  * event channel until the irq actually started up.  Return an
  * existing irq if we've already got one for the gsi.
  */
-int xen_allocate_pirq(unsigned gsi)
+int xen_allocate_pirq(unsigned gsi, char *name)
 {
        int irq;
        struct physdev_irq irq_op;
@@ -554,7 +554,7 @@ int xen_allocate_pirq(unsigned gsi)
                irq = find_unbound_irq();
 
        set_irq_chip_and_handler_name(irq, &xen_pirq_chip,
-                                     handle_level_irq, "pirq");
+                                     handle_level_irq, name);
 
        irq_op.irq = irq;
        if (HYPERVISOR_physdev_op(PHYSDEVOP_alloc_irq_vector, &irq_op)) {
diff --git a/include/xen/events.h b/include/xen/events.h
index 6fe4863..4b19b9c 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -61,7 +61,7 @@ unsigned irq_from_evtchn(unsigned int evtchn);
 /* Allocate an irq for a physical interrupt, given a gsi.  "Legacy"
    GSIs are identity mapped; others are dynamically allocated as
    usual. */
-int xen_allocate_pirq(unsigned gsi);
+int xen_allocate_pirq(unsigned gsi, char *name);
 
 /* Return vector allocated to pirq */
 int xen_vector_from_irq(unsigned pirq);
-- 
1.6.0.6


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