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| author | Youquan Song <youquan.song@intel.com> | 2008-10-16 16:31:57 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-17 08:05:30 +0100 |
| commit | cacd4213d8ffed83676f38d5d8e93c673e0f1af7 (patch) | |
| tree | ffaba6f6b6597973ac7f605809446621dbc8fc6c /drivers/pci/dmar.c | |
| parent | a77b67d4023770805141014b8fa9eb5467457817 (diff) | |
| download | op-kernel-dev-cacd4213d8ffed83676f38d5d8e93c673e0f1af7.zip op-kernel-dev-cacd4213d8ffed83676f38d5d8e93c673e0f1af7.tar.gz | |
dmar: remove the quirk which disables dma-remapping when intr-remapping enabled
Now that we have DMA-remapping support for queued invalidation, we
can enable both DMA-remapping and interrupt-remapping at the same time.
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/pci/dmar.c')
| -rw-r--r-- | drivers/pci/dmar.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index 0f409e2..44d6c70 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -455,8 +455,8 @@ void __init detect_intel_iommu(void) ret = early_dmar_detect(); -#ifdef CONFIG_DMAR { +#ifdef CONFIG_INTR_REMAP struct acpi_table_dmar *dmar; /* * for now we will disable dma-remapping when interrupt @@ -465,28 +465,18 @@ void __init detect_intel_iommu(void) * is added, we will not need this any more. */ dmar = (struct acpi_table_dmar *) dmar_tbl; - if (ret && cpu_has_x2apic && dmar->flags & 0x1) { + if (ret && cpu_has_x2apic && dmar->flags & 0x1) printk(KERN_INFO "Queued invalidation will be enabled to support " "x2apic and Intr-remapping.\n"); - printk(KERN_INFO - "Disabling IOMMU detection, because of missing " - "queued invalidation support for IOTLB " - "invalidation\n"); - printk(KERN_INFO - "Use \"nox2apic\", if you want to use Intel " - " IOMMU for DMA-remapping and don't care about " - " x2apic support\n"); - - dmar_disabled = 1; - return; - } +#endif +#ifdef CONFIG_DMAR if (ret && !no_iommu && !iommu_detected && !swiotlb && !dmar_disabled) iommu_detected = 1; - } #endif + } } |
