Update the i.MX31 Kernel to 2.6.232.6.23-mx31ads-2008022618072.6.23-mx31-200802261807

This is the result of a brute-force attempt to update the kernel to 2.6.23.
Now that we have a git tree, our effort will be a little nicer in the future.

Signed-off-by: Justin Waters <justin.waters@timesys.com>

1 files changed, 26 insertions, 1 deletions

diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 7f6d2360a262..0f9b12683bf3 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -19,6 +19,7 @@
 #include <asm/sn/pcidev.h>
 #include <asm/sn/shub_mmr.h>
 #include <asm/sn/sn_sal.h>
+#include <asm/sn/sn_feature_sets.h>
 
 static void force_interrupt(int irq);
 static void register_intr_pda(struct sn_irq_info *sn_irq_info);
@@ -233,6 +234,20 @@ static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
 		(void)sn_retarget_vector(sn_irq_info, nasid, slice);
 }
 
+#ifdef CONFIG_SMP
+void sn_set_err_irq_affinity(unsigned int irq)
+{
+        /*
+         * On systems which support CPU disabling (SHub2), all error interrupts
+         * are targetted at the boot CPU.
+         */
+        if (is_shub2() && sn_prom_feature_available(PRF_CPU_DISABLE_SUPPORT))
+                set_irq_affinity_info(irq, cpu_physical_id(0), 0);
+}
+#else
+void sn_set_err_irq_affinity(unsigned int irq) { }
+#endif
+
 static void
 sn_mask_irq(unsigned int irq)
 {
@@ -256,6 +271,13 @@ struct irq_chip irq_type_sn = {
 	.set_affinity	= sn_set_affinity_irq
 };
 
+ia64_vector sn_irq_to_vector(int irq)
+{
+	if (irq >= IA64_NUM_VECTORS)
+		return 0;
+	return (ia64_vector)irq;
+}
+
 unsigned int sn_local_vector_to_irq(u8 vector)
 {
 	return (CPU_VECTOR_TO_IRQ(smp_processor_id(), vector));
@@ -398,7 +420,10 @@ sn_call_force_intr_provider(struct sn_irq_info *sn_irq_info)
 	struct sn_pcibus_provider *pci_provider;
 
 	pci_provider = sn_pci_provider[sn_irq_info->irq_bridge_type];
-	if (pci_provider && pci_provider->force_interrupt)
+
+	/* Don't force an interrupt if the irq has been disabled */
+	if (!(irq_desc[sn_irq_info->irq_irq].status & IRQ_DISABLED) &&
+	    pci_provider && pci_provider->force_interrupt)
 		(*pci_provider->force_interrupt)(sn_irq_info);
 }