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authorrogersb11 <brettrogers11@gmail.com>2015-11-10 11:19:31 -0600
committerrogersb11 <brettrogers11@gmail.com>2015-11-10 14:01:25 -0500
commitb4d16f70c34ecb908c8a61e58ea51fecdd4a4b10 (patch)
tree973e9aeb97bb13497d17a43e6f3c070381bc5b87 /arch/ia64/kernel
parentd177fbc2f0c263b06c18bda2eb46200a31bcbebd (diff)
parent5dba9ddd98cbc7ad319d687887981a0ea0062c75 (diff)
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Merge remote-tracking branch 'korg/linux-3.0.y' into cm-13.0
Conflicts: crypto/algapi.c drivers/gpu/drm/i915/i915_debugfs.c drivers/gpu/drm/i915/intel_display.c drivers/video/fbmem.c include/linux/nls.h kernel/cgroup.c kernel/signal.c kernel/timeconst.pl net/ipv4/ping.c Change-Id: I1f532925d1743df74d66bcdd6fc92f05c72ee0dd
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/irq.c8
-rw-r--r--arch/ia64/kernel/mca.c37
2 files changed, 32 insertions, 13 deletions
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index ad69606..f2c41828 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -23,6 +23,8 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
+#include <asm/mca.h>
+
/*
* 'what should we do if we get a hw irq event on an illegal vector'.
* each architecture has to answer this themselves.
@@ -83,6 +85,12 @@ bool is_affinity_mask_valid(const struct cpumask *cpumask)
#endif /* CONFIG_SMP */
+int __init arch_early_irq_init(void)
+{
+ ia64_mca_irq_init();
+ return 0;
+}
+
#ifdef CONFIG_HOTPLUG_CPU
unsigned int vectors_in_migration[NR_IRQS];
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 84fb405..9b97303 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -2071,22 +2071,16 @@ ia64_mca_init(void)
printk(KERN_INFO "MCA related initialization done\n");
}
+
/*
- * ia64_mca_late_init
- *
- * Opportunity to setup things that require initialization later
- * than ia64_mca_init. Setup a timer to poll for CPEs if the
- * platform doesn't support an interrupt driven mechanism.
- *
- * Inputs : None
- * Outputs : Status
+ * These pieces cannot be done in ia64_mca_init() because it is called before
+ * early_irq_init() which would wipe out our percpu irq registrations. But we
+ * cannot leave them until ia64_mca_late_init() because by then all the other
+ * processors have been brought online and have set their own CMC vectors to
+ * point at a non-existant action. Called from arch_early_irq_init().
*/
-static int __init
-ia64_mca_late_init(void)
+void __init ia64_mca_irq_init(void)
{
- if (!mca_init)
- return 0;
-
/*
* Configure the CMCI/P vector and handler. Interrupts for CMC are
* per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c).
@@ -2105,6 +2099,23 @@ ia64_mca_late_init(void)
/* Setup the CPEI/P handler */
register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
#endif
+}
+
+/*
+ * ia64_mca_late_init
+ *
+ * Opportunity to setup things that require initialization later
+ * than ia64_mca_init. Setup a timer to poll for CPEs if the
+ * platform doesn't support an interrupt driven mechanism.
+ *
+ * Inputs : None
+ * Outputs : Status
+ */
+static int __init
+ia64_mca_late_init(void)
+{
+ if (!mca_init)
+ return 0;
register_hotcpu_notifier(&mca_cpu_notifier);