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authorJiang Liu <jiang.liu@linux.intel.com>2014-01-06 14:18:14 +0800
committerJoerg Roedel <joro@8bytes.org>2014-01-09 12:43:30 +0100
commitb977e73a837963ad73d24db4ca7b71040791868c (patch)
tree3469d37f1ca030ff60635a56697d3410e9a479b6 /drivers/iommu
parent9544c003e85f6ac6b0b617e15266fe2e81caa42a (diff)
iommu/vt-d, trivial: check suitable flag in function detect_intel_iommu()
Flag irq_remapping_enabled is only set by intel_enable_irq_remapping(), which is called after detect_intel_iommu(). So moving pr_info() from detect_intel_iommu() to intel_enable_irq_remapping(), which also slightly simplifies implementation. Reviewed-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/dmar.c8
-rw-r--r--drivers/iommu/intel_irq_remapping.c2
2 files changed, 2 insertions, 8 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 28d93b68ff0..e4c3ea02242 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -556,14 +556,6 @@ int __init detect_intel_iommu(void)
if (ret)
ret = check_zero_address();
{
- struct acpi_table_dmar *dmar;
-
- dmar = (struct acpi_table_dmar *) dmar_tbl;
-
- if (ret && irq_remapping_enabled && cpu_has_x2apic &&
- dmar->flags & 0x1)
- pr_info("Queued invalidation will be enabled to support x2apic and Intr-remapping.\n");
-
if (ret && !no_iommu && !iommu_detected && !dmar_disabled) {
iommu_detected = 1;
/* Make sure ACS will be enabled */
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 3aa9b5c347e..b9256a4f946 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -561,6 +561,8 @@ static int __init intel_enable_irq_remapping(void)
}
if (x2apic_present) {
+ pr_info("Queued invalidation will be enabled to support x2apic and Intr-remapping.\n");
+
eim = !dmar_x2apic_optout();
if (!eim)
printk(KERN_WARNING