Messages in this thread | ![/](/images/icornerl.gif) | | From | Rob Clark <> | Date | Tue, 25 Aug 2020 07:38:13 -0700 | Subject | Re: [PATCH] drm/msm: drop cache sync hack |
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On Mon, Aug 24, 2020 at 11:52 PM Christoph Hellwig <hch@infradead.org> wrote: > > On Sat, Aug 22, 2020 at 10:52:54AM -0700, Rob Clark wrote: > > From: Rob Clark <robdclark@chromium.org> > > > > Now that it isn't causing problems to use dma_map/unmap, we can drop the > > hack of using dma_sync in certain cases. > > Great to see! What did solve the problems?
should be 0e764a01015dfebff8a8ffd297d74663772e248a ("iommu/arm-smmu: Allow client devices to select direct mapping")
I still need to confirm whether qcom_iommu needs a similar thing, but I think it is ok as the iommu phandle link is down one level on the 'mdp' device, rather than attached to the toplevel drm device.
BR, -R
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