linux-kernel - Re: [PATCH 1/3] iommu/dma: Clean up Kconfig

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Date:   Fri, 5 May 2023 16:22:34 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Robin Murphy <robin.murphy@....com>
Cc:     joro@...tes.org, will@...nel.org, catalin.marinas@....com,
        jean-philippe@...aro.org, inki.dae@...sung.com,
        sw0312.kim@...sung.com, kyungmin.park@...sung.com,
        tglx@...utronix.de, maz@...nel.org, alex.williamson@...hat.com,
        cohuck@...hat.com, iommu@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-acpi@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH 1/3] iommu/dma: Clean up Kconfig

On Fri, May 05, 2023 at 03:53:54PM +0100, Robin Murphy wrote:
> > > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > > index 5c5cb5bee8b6..1d99c2d984fb 100644
> > > --- a/drivers/iommu/Kconfig
> > > +++ b/drivers/iommu/Kconfig
> > > @@ -137,7 +137,7 @@ config OF_IOMMU
> > >   # IOMMU-agnostic DMA-mapping layer
> > >   config IOMMU_DMA
> > > -	bool
> > > +	def_bool ARM64 || IA64 || X86
> > 
> > Robin, do you remember why you added IA64 here? What is the Itanimum
> > IOMMU driver?
> 
> config INTEL_IOMMU
> 	bool "Support for Intel IOMMU using DMA Remapping Devices"
> 	depends on PCI_MSI && ACPI && (X86 || IA64)
> 
> Yes, really :)

Wowo, thanks!

Jason