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2.897666
2016 Jun 06
2
[PATCH v2] 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).
2016 Apr 29
1
[PATCH] Revert "drm/nouveau/device/pci: set as non-CPU-coherent on ARM64"
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).
Booting a plain arm64 defconfig + CONFIG_DRM +
2016 Jun 06
0
[PATCH v2] Revert "drm/nouveau/device/pci: set as non-CPU-coherent on ARM64"
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