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authorJoerg Roedel <joro@8bytes.org>2012-09-26 12:44:45 +0200
committerJoerg Roedel <joro@8bytes.org>2013-01-28 12:17:27 +0100
commit9b1b0e42f54bc452817f4bb6a8d939afe4f04303 (patch)
tree9b3edc203e3ac5b23c5202605f5c4a9dbe023c03 /drivers/iommu/irq_remapping.c
parentx86, irq: Add data structure to keep AMD specific irq remapping information (diff)
downloadlinux-9b1b0e42f54bc452817f4bb6a8d939afe4f04303.tar.xz
linux-9b1b0e42f54bc452817f4bb6a8d939afe4f04303.zip
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>
Diffstat (limited to 'drivers/iommu/irq_remapping.c')
-rw-r--r--drivers/iommu/irq_remapping.c25
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;
+}