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authorChristoph Hellwig2018-04-27 09:13:24 +0200
committerChristoph Hellwig2018-05-28 12:48:16 +0200
commit06e9552f5f12564dc1c3483f0934d96cc4f72f18 (patch)
tree48c92eba3b3c1a7e8576fc84159183481e5e2960 /samples/kfifo
parent84564d1c76255ac6d5fb76c85818cb5961fad061 (diff)
x86/pci-dma: remove the experimental forcesac boot option
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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