Am Donnerstag, den 17.08.2017, 15:45 +0200 schrieb Joerg Roedel: > Hi Lucas, > > On Thu, Aug 17, 2017 at 03:32:38PM +0200, Lucas Stach wrote: > > I don't think this is necessary. Etnaviv has managed and batched up TLB > > flushes from day 1, as they don't happen through the MMU MMIO interface, > > but through the GPU command stream. > > > > So if my understanding of this series is correct, Etnaviv is just fine > > with the changed semantics of the unsynchronized map/unmap calls. > > This is not about any TLB on the GPU that could be flushed through the > GPU command stream, but about the TLB in the IOMMU device. Or is this > actually the same on this hardware? Which IOMMU-driver is use there? There is no IOMMU driver in use. Etnaviv just uses part of the IOMMU API to manage the GPU internal MMU, see drivers/gpu/drm/etnaviv/etnaviv_iommu.c Regards, Lucas _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
