x86, io-apic: Move CONFIG_IRQ_REMAP code out of x86 core

Move all the code to either to the header file
asm/irq_remapping.h or to drivers/iommu/.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index ebd02bf98062..75afdf43317c 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -1,3 +1,4 @@
+#include <linux/seq_file.h>
 #include <linux/cpumask.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
@@ -327,3 +328,27 @@ void panic_if_irq_remap(const char *msg)
         if (irq_remapping_enabled)
                 panic(msg);
 }
+
+static void ir_ack_apic_edge(struct irq_data *data)
+{
+        ack_APIC_irq();
+}
+
+static void ir_ack_apic_level(struct irq_data *data)
+{
+        ack_APIC_irq();
+        eoi_ioapic_irq(data->irq, data->chip_data);
+}
+
+static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
+{
+        seq_printf(p, " IR-%s", data->chip->name);
+}
+
+void irq_remap_modify_chip_defaults(struct irq_chip *chip)
+{
+        chip->irq_print_chip = ir_print_prefix;
+        chip->irq_ack = ir_ack_apic_edge;
+        chip->irq_eoi = ir_ack_apic_level;
+        chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
+}