similar to: [PATCH] Revert "drm/nouveau/device/pci: set as non-CPU-coherent on ARM64"

From: Robin Murphy <robin.murphy at arm.com> This reverts commit 1733a2ad36741b1812cf8b3f3037c28d0af53f50. There is apparently something amiss with the way the TTM code handles DMA buffers, which the above commit was attempting to work around for arm64 systems with non-coherent PCI. Unfortunately, this completely breaks systems *with* coherent PCI (which appear to be the majority).

On 06/06/16 08:11, Alexandre Courbot wrote: > From: Robin Murphy <robin.murphy at arm.com> > > This reverts commit 1733a2ad36741b1812cf8b3f3037c28d0af53f50. > > There is apparently something amiss with the way the TTM code handles > DMA buffers, which the above commit was attempting to work around for > arm64 systems with non-coherent PCI. Unfortunately, this completely

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