* [PATCH 1/1] iommu/vt-d: Select PCI_ATS explicitly
@ 2021-05-12 6:53 Lu Baolu
2021-06-08 9:34 ` Will Deacon
0 siblings, 1 reply; 2+ messages in thread
From: Lu Baolu @ 2021-05-12 6:53 UTC (permalink / raw)
To: Joerg Roedel, Will Deacon
Cc: ashok.raj, kevin.tian, jacob.jun.pan, yi.l.liu, sanjay.k.kumar,
iommu, linux-kernel, Lu Baolu
The Intel VT-d implementation supports device TLB management. Select
PCI_ATS explicitly so that the pci_ats helpers are always available.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
drivers/iommu/intel/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig
index 28a3d1596c76..7e5b240b801d 100644
--- a/drivers/iommu/intel/Kconfig
+++ b/drivers/iommu/intel/Kconfig
@@ -14,6 +14,7 @@ config INTEL_IOMMU
select SWIOTLB
select IOASID
select IOMMU_DMA
+ select PCI_ATS
help
DMA remapping (DMAR) devices support enables independent address
translations for Direct Memory Access (DMA) from devices.
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/1] iommu/vt-d: Select PCI_ATS explicitly
2021-05-12 6:53 [PATCH 1/1] iommu/vt-d: Select PCI_ATS explicitly Lu Baolu
@ 2021-06-08 9:34 ` Will Deacon
0 siblings, 0 replies; 2+ messages in thread
From: Will Deacon @ 2021-06-08 9:34 UTC (permalink / raw)
To: Lu Baolu
Cc: Joerg Roedel, ashok.raj, kevin.tian, jacob.jun.pan, yi.l.liu,
sanjay.k.kumar, iommu, linux-kernel
On Wed, May 12, 2021 at 02:53:13PM +0800, Lu Baolu wrote:
> The Intel VT-d implementation supports device TLB management. Select
> PCI_ATS explicitly so that the pci_ats helpers are always available.
>
> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
> ---
> drivers/iommu/intel/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig
> index 28a3d1596c76..7e5b240b801d 100644
> --- a/drivers/iommu/intel/Kconfig
> +++ b/drivers/iommu/intel/Kconfig
> @@ -14,6 +14,7 @@ config INTEL_IOMMU
> select SWIOTLB
> select IOASID
> select IOMMU_DMA
> + select PCI_ATS
> help
> DMA remapping (DMAR) devices support enables independent address
> translations for Direct Memory Access (DMA) from devices.
Acked-by: Will Deacon <will@kernel.org>
Will
^ permalink raw reply [flat|nested] 2+ messages in thread
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