Isaku Yamahata wrote:
This patch is for the pv_ops patch queue repository.
Later more generalization to events.c would be necessary because
it assumes x86. For example, LEGACY_IRQS doesn't make sense for ia64.
Since those bits are for dom0 support and pv_ops xen/ia64 doesn't
support dom0 yet, I made it just compile for ia64 for now.
Yeah, I'd assumed you'd define LEGACY_IRQS to 0.
xen: make events.c compile for ia64.
xen_do_irq() is x86 specific because it calls
exit_idle(), handle_irq().
Move it to arch specific file for ia64 support.
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
diff -r 4f7cc06552f8 drivers/xen/events.c
--- a/drivers/xen/events.c Mon Oct 06 15:24:22 2008 +0900
+++ b/drivers/xen/events.c Mon Oct 06 16:02:56 2008 +0900
@@ -29,7 +29,6 @@
#include <asm/ptrace.h>
#include <asm/irq.h>
-#include <asm/idle.h>
#include <asm/sync_bitops.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
@@ -814,33 +813,6 @@
return IRQ_HANDLED;
}
-
-static void xen_do_irq(unsigned irq, struct pt_regs *regs)
I was hoping this would be generic enough to work on ia64, if you define
an appropriate handle_irq() (and exit_idle, I guess). Is there
something else you need to do here?
-{
- struct pt_regs *old_regs = set_irq_regs(regs);
-
- if (WARN_ON(irq == -1))
- return;
-
- {
- struct irq_info *info = info_for_irq(irq);
-
- if (info->type == IRQT_PIRQ)
- printk("xen_do_irq: pirq %d, gsi %d, vector %d\n",
- irq, info->u.pirq.gsi, info->u.pirq.vector);
- }
-
- exit_idle();
- irq_enter();
-
- //printk("cpu %d handling irq %d\n", smp_processor_id(), info->irq);
- handle_irq(irq, regs);
-
- irq_exit();
-
- set_irq_regs(old_regs);
-}
-
/*
* Search the CPUs pending events bitmasks. For each one found, map
* the event number to an irq, and feed it into do_IRQ() for
diff -r 4f7cc06552f8 include/asm-x86/xen/events.h
--- a/include/asm-x86/xen/events.h Mon Oct 06 15:24:22 2008 +0900
+++ b/include/asm-x86/xen/events.h Mon Oct 06 16:02:56 2008 +0900
@@ -1,5 +1,7 @@
#ifndef ASM_X86__XEN__EVENTS_H
#define ASM_X86__XEN__EVENTS_H
+
+#include <asm/idle.h>
enum ipi_vector {
XEN_RESCHEDULE_VECTOR,
@@ -15,4 +17,30 @@
return raw_irqs_disabled_flags(regs->flags);
}
+static inline void xen_do_irq(unsigned irq, struct pt_regs *regs)
+{
+ struct pt_regs *old_regs = set_irq_regs(regs);
+
+ if (WARN_ON(irq == -1))
+ return;
+
+ {
+ struct irq_info *info = info_for_irq(irq);
+
+ if (info->type == IRQT_PIRQ)
+ printk("xen_do_irq: pirq %d, gsi %d, vector %d\n",
+ irq, info->u.pirq.gsi, info->u.pirq.vector);
+ }
+
+ exit_idle();
+ irq_enter();
+
+ //printk("cpu %d handling irq %d\n", smp_processor_id(), info->irq);
+ handle_irq(irq, regs);
+
+ irq_exit();
+
+ set_irq_regs(old_regs);
+}
+
#endif /* ASM_X86__XEN__EVENTS_H */
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