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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-ia64-devel] Re: [Xen-devel] [PATCH 3/5] setup_irq/request_irq/free_irq fixups
On Tue, Feb 10, 2009 at 05:41:18AM +0000, Keir Fraser wrote:
> On 09/02/2009 17:46, "Espen Skoglund" <espen.skoglund@xxxxxxxxxxxxx> wrote:
>
> > Cleanup naming for ia64 and x86 interrupt handling functions
> >
> > - Append '_IRQ' to AUTO_ASSIGN, NEVER_ASSIGN, and FREE_TO_ASSIGN
> > - Rename {request,setup}_irq to {request,setup}_irq_vector
> > - Rename free_irq to release_irq_vector
> > - Add {request,setup,release}_irq wrappers for their
> > {request,setup,release}_irq_vector counterparts
> > - Added generic irq_to_vector inline for ia64
> > - Changed ia64 to use the new naming scheme
> >
> > Signed-off-by: Espen Skoglund <espen.skoglund@xxxxxxxxxxxxx>
>
> This needs an ack on the IA64 side. And perhaps a fixup patch since it
> probably breaks their build if you couldn't test that. I cc'ed Isaku.
Here is the additional patch to boot xen on ia64.
[IA64] more fix
tirivial compliation fix and fixes to boot xen on ia64.
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
diff --git a/xen/arch/ia64/linux-xen/iosapic.c
b/xen/arch/ia64/linux-xen/iosapic.c
--- a/xen/arch/ia64/linux-xen/iosapic.c
+++ b/xen/arch/ia64/linux-xen/iosapic.c
@@ -93,6 +93,7 @@
#include <asm/ptrace.h>
#include <asm/system.h>
+#ifdef XEN
static inline int iosapic_irq_to_vector (int irq)
{
return irq;
@@ -100,6 +101,8 @@ static inline int iosapic_irq_to_vector
#undef irq_to_vector
#define irq_to_vector(irq) iosapic_irq_to_vector(irq)
+#define AUTO_ASSIGN AUTO_ASSIGN_IRQ
+#endif
#undef DEBUG_INTERRUPT_ROUTING
@@ -535,7 +538,7 @@ iosapic_reassign_vector (int vector)
int new_vector;
if (!list_empty(&iosapic_intr_info[vector].rtes)) {
- new_vector = assign_irq_vector(AUTO_ASSIGN_IRQ);
+ new_vector = assign_irq_vector(AUTO_ASSIGN);
if (new_vector < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
printk(KERN_INFO "Reassigning vector %d to %d\n", vector,
new_vector);
@@ -771,7 +774,7 @@ again:
spin_unlock_irqrestore(&iosapic_lock, flags);
/* If vector is running out, we try to find a sharable vector */
- vector = assign_irq_vector(AUTO_ASSIGN_IRQ);
+ vector = assign_irq_vector(AUTO_ASSIGN);
if (vector < 0) {
vector = iosapic_find_sharable_vector(trigger, polarity);
if (vector < 0)
@@ -926,7 +929,7 @@ iosapic_register_platform_intr (u32 int_
delivery = IOSAPIC_PMI;
break;
case ACPI_INTERRUPT_INIT:
- vector = assign_irq_vector(AUTO_ASSIGN_IRQ);
+ vector = assign_irq_vector(AUTO_ASSIGN);
if (vector < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
delivery = IOSAPIC_INIT;
diff --git a/xen/arch/ia64/linux-xen/irq_ia64.c
b/xen/arch/ia64/linux-xen/irq_ia64.c
--- a/xen/arch/ia64/linux-xen/irq_ia64.c
+++ b/xen/arch/ia64/linux-xen/irq_ia64.c
@@ -250,6 +250,7 @@ void
register_percpu_irq (ia64_vector vec, struct irqaction *action)
{
irq_desc_t *desc;
+#ifndef XEN
unsigned int irq;
for (irq = 0; irq < NR_IRQS; ++irq)
@@ -258,12 +259,15 @@ register_percpu_irq (ia64_vector vec, st
desc->status |= IRQ_PER_CPU;
desc->handler = &irq_type_ia64_lsapic;
if (action)
-#ifdef XEN
- setup_vector(irq, action);
+ setup_irq(irq, action);
+ }
#else
- setup_irq_vector(irq, action);
+ desc = irq_descp(vec);
+ desc->status |= IRQ_PER_CPU;
+ desc->handler = &irq_type_ia64_lsapic;
+ if (action)
+ setup_vector(vec, action);
#endif
- }
}
#ifdef XEN
diff --git a/xen/arch/ia64/linux-xen/mca.c b/xen/arch/ia64/linux-xen/mca.c
--- a/xen/arch/ia64/linux-xen/mca.c
+++ b/xen/arch/ia64/linux-xen/mca.c
@@ -1930,12 +1930,18 @@ ia64_mca_late_init(void)
if (cpe_vector >= 0) {
/* If platform supports CPEI, enable the irq. */
cpe_poll_enabled = 0;
+#ifndef XEN
for (irq = 0; irq < NR_IRQS; ++irq)
if (irq_to_vector(irq) == cpe_vector) {
desc = irq_descp(irq);
desc->status |= IRQ_PER_CPU;
setup_vector(irq, &mca_cpe_irqaction);
}
+#else
+ desc = irq_descp(cpe_vector);
+ desc->status |= IRQ_PER_CPU;
+ setup_vector(cpe_vector, &mca_cpe_irqaction);
+#endif
ia64_mca_register_cpev(cpe_vector);
IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n",
__FUNCTION__);
} else {
diff --git a/xen/arch/ia64/xen/hypercall.c b/xen/arch/ia64/xen/hypercall.c
--- a/xen/arch/ia64/xen/hypercall.c
+++ b/xen/arch/ia64/xen/hypercall.c
@@ -543,7 +543,7 @@ long do_physdev_op(int cmd, XEN_GUEST_HA
break;
irq_status_query.flags = 0;
/* Edge-triggered interrupts don't need an explicit unmask downcall. */
- if ( !strstr(irq_desc[irq_to_vector(irq)].handler->typename, "edge") )
+ if ( !strstr(irq_descp(irq)->handler->typename, "edge") )
irq_status_query.flags |= XENIRQSTAT_needs_eoi;
ret = copy_to_guest(arg, &irq_status_query, 1) ? -EFAULT : 0;
break;
diff --git a/xen/arch/ia64/xen/irq.c b/xen/arch/ia64/xen/irq.c
--- a/xen/arch/ia64/xen/irq.c
+++ b/xen/arch/ia64/xen/irq.c
@@ -262,7 +262,7 @@ int setup_irq_vector(unsigned int vec, s
{
int res;
- if ( !vec )
+ if ( vec == IA64_INVALID_VECTOR )
return -ENOSYS;
/* Reserve the vector (and thus the irq). */
if (test_and_set_bit(vec, ia64_xen_vector))
@@ -276,7 +276,7 @@ void release_irq_vector(unsigned int vec
unsigned long flags;
irq_desc_t *desc;
- if ( !vec )
+ if ( vec == IA64_INVALID_VECTOR )
return;
desc = irq_descp(vec);
diff --git a/xen/include/asm-ia64/hvm/irq.h b/xen/include/asm-ia64/hvm/irq.h
--- a/xen/include/asm-ia64/hvm/irq.h
+++ b/xen/include/asm-ia64/hvm/irq.h
@@ -90,10 +90,11 @@ struct hvm_irq {
#define hvm_pci_intx_link(dev, intx) \
(((dev) + (intx)) & 3)
-static inlint int irq_to_vector(int irq)
+#define IA64_INVALID_VECTOR ((unsigned int)((int)-1))
+static inline unsigned int irq_to_vector(int irq)
{
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
- int vector;
+ unsigned int vector;
if ( acpi_gsi_to_irq(irq, &vector) < 0)
return 0;
--
yamahata
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