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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
parent819508d302e5b6d6dacb5c3d5e4756091e32cc7d (diff)
downloadblackbird-op-linux-9b1b0e42f54bc452817f4bb6a8d939afe4f04303.tar.gz
blackbird-op-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')
-rw-r--r--drivers/iommu/amd_iommu.c8
-rw-r--r--drivers/iommu/intel_irq_remapping.c4
-rw-r--r--drivers/iommu/irq_remapping.c25
3 files changed, 33 insertions, 4 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c1c74e030a58..d33eaaf783ad 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -4017,10 +4017,10 @@ static int alloc_irq_index(struct irq_cfg *cfg, u16 devid, int count)
index -= count - 1;
+ cfg->remapped = 1;
irte_info = &cfg->irq_2_iommu;
irte_info->sub_handle = devid;
irte_info->irte_index = index;
- irte_info->iommu = (void *)cfg;
goto out;
}
@@ -4127,9 +4127,9 @@ static int setup_ioapic_entry(int irq, struct IO_APIC_route_entry *entry,
index = attr->ioapic_pin;
/* Setup IRQ remapping info */
+ cfg->remapped = 1;
irte_info->sub_handle = devid;
irte_info->irte_index = index;
- irte_info->iommu = (void *)cfg;
/* Setup IRTE for IOMMU */
irte.val = 0;
@@ -4288,9 +4288,9 @@ static int msi_setup_irq(struct pci_dev *pdev, unsigned int irq,
devid = get_device_id(&pdev->dev);
irte_info = &cfg->irq_2_iommu;
+ cfg->remapped = 1;
irte_info->sub_handle = devid;
irte_info->irte_index = index + offset;
- irte_info->iommu = (void *)cfg;
return 0;
}
@@ -4314,9 +4314,9 @@ static int setup_hpet_msi(unsigned int irq, unsigned int id)
if (index < 0)
return index;
+ cfg->remapped = 1;
irte_info->sub_handle = devid;
irte_info->irte_index = index;
- irte_info->iommu = (void *)cfg;
return 0;
}
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index cb9a72d4cc09..7ca4947c3c10 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -68,6 +68,7 @@ static int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
{
struct ir_table *table = iommu->ir_table;
struct irq_2_iommu *irq_iommu = irq_2_iommu(irq);
+ struct irq_cfg *cfg = irq_get_chip_data(irq);
u16 index, start_index;
unsigned int mask = 0;
unsigned long flags;
@@ -115,6 +116,7 @@ static int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
for (i = index; i < index + count; i++)
table->base[i].present = 1;
+ cfg->remapped = 1;
irq_iommu->iommu = iommu;
irq_iommu->irte_index = index;
irq_iommu->sub_handle = 0;
@@ -155,6 +157,7 @@ static int map_irq_to_irte_handle(int irq, u16 *sub_handle)
static int set_irte_irq(int irq, struct intel_iommu *iommu, u16 index, u16 subhandle)
{
struct irq_2_iommu *irq_iommu = irq_2_iommu(irq);
+ struct irq_cfg *cfg = irq_get_chip_data(irq);
unsigned long flags;
if (!irq_iommu)
@@ -162,6 +165,7 @@ static int set_irte_irq(int irq, struct intel_iommu *iommu, u16 index, u16 subha
raw_spin_lock_irqsave(&irq_2_ir_lock, flags);
+ cfg->remapped = 1;
irq_iommu->iommu = iommu;
irq_iommu->irte_index = index;
irq_iommu->sub_handle = subhandle;
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;
+}
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