Messages in this thread | | | Date | Mon, 28 May 2018 08:07:57 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 5/7] x86: remove the experimental forcesac boot option |
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On Fri, 25 May 2018, Christoph Hellwig wrote:
x86/pci-dma: ...
Please
> Limiting the dma mask to avoid PCI (pre-PCIe) DAC cycles while paying > the huge overhead of an IOMMU is rather pointless, and this seriously > gets in the way of dma mapping work. > > Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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