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authorIngo Molnar <mingo@elte.hu>2009-03-01 12:47:58 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-01 12:47:58 +0100
commit55f2b78995826d549401bdf20abeac1832636bb6 (patch)
tree931b31f3b6e0879df0f9a1d58ffd040d9a652f2e /drivers/pci/intr_remapping.c
parentf5c1aa1537be39d8b9bb5279b5881d81898fd3cd (diff)
parent92b9af9e4f144535c65aee673cfad309f25fa465 (diff)
Merge branch 'x86/urgent' into x86/pat
Diffstat (limited to 'drivers/pci/intr_remapping.c')
-rw-r--r--drivers/pci/intr_remapping.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 5a57753ea9f..8e44db040db 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -208,7 +208,7 @@ int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
return index;
}
-static void qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
+static int qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
{
struct qi_desc desc;
@@ -216,7 +216,7 @@ static void qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
| QI_IEC_SELECTIVE;
desc.high = 0;
- qi_submit_sync(&desc, iommu);
+ return qi_submit_sync(&desc, iommu);
}
int map_irq_to_irte_handle(int irq, u16 *sub_handle)
@@ -284,6 +284,7 @@ int clear_irte_irq(int irq, struct intel_iommu *iommu, u16 index)
int modify_irte(int irq, struct irte *irte_modified)
{
+ int rc;
int index;
struct irte *irte;
struct intel_iommu *iommu;
@@ -304,14 +305,15 @@ int modify_irte(int irq, struct irte *irte_modified)
set_64bit((unsigned long *)irte, irte_modified->low | (1 << 1));
__iommu_flush_cache(iommu, irte, sizeof(*irte));
- qi_flush_iec(iommu, index, 0);
-
+ rc = qi_flush_iec(iommu, index, 0);
spin_unlock(&irq_2_ir_lock);
- return 0;
+
+ return rc;
}
int flush_irte(int irq)
{
+ int rc;
int index;
struct intel_iommu *iommu;
struct irq_2_iommu *irq_iommu;
@@ -327,10 +329,10 @@ int flush_irte(int irq)
index = irq_iommu->irte_index + irq_iommu->sub_handle;
- qi_flush_iec(iommu, index, irq_iommu->irte_mask);
+ rc = qi_flush_iec(iommu, index, irq_iommu->irte_mask);
spin_unlock(&irq_2_ir_lock);
- return 0;
+ return rc;
}
struct intel_iommu *map_ioapic_to_ir(int apic)
@@ -356,6 +358,7 @@ struct intel_iommu *map_dev_to_ir(struct pci_dev *dev)
int free_irte(int irq)
{
+ int rc = 0;
int index, i;
struct irte *irte;
struct intel_iommu *iommu;
@@ -376,7 +379,7 @@ int free_irte(int irq)
if (!irq_iommu->sub_handle) {
for (i = 0; i < (1 << irq_iommu->irte_mask); i++)
set_64bit((unsigned long *)irte, 0);
- qi_flush_iec(iommu, index, irq_iommu->irte_mask);
+ rc = qi_flush_iec(iommu, index, irq_iommu->irte_mask);
}
irq_iommu->iommu = NULL;
@@ -386,7 +389,7 @@ int free_irte(int irq)
spin_unlock(&irq_2_ir_lock);
- return 0;
+ return rc;
}
static void iommu_set_intr_remapping(struct intel_iommu *iommu, int mode)