v2 was doing some pretty nasty things with the DMA API, so I took a different approach for this v3. As suggested, this version uses ttm_dma_populate() to populate BOs. The reason for doing this was that it would entitle us to using the DMA sync functions, but since the memory returned is already coherent anyway, we do not even need to call these functions anymore. So this series has turned into 2 small patches: - The first attempts to make it more obvious that Nouveau can use different ways to populate TTs, and make it possible to choose which method to use from a single place. - The second leverages this work to select the DMA allocator to populate TTs on ARM. Doing this solves all our coherency problems with Nouveau on Tegra, and hopefully makes the code easier to read in the process. Alexandre Courbot (2): drm/nouveau: cleanup TTM population logic drm/nouveau: use DMA TT population method on ARM drivers/gpu/drm/nouveau/nouveau_bo.c | 63 ++++++++++++++++++----------------- drivers/gpu/drm/nouveau/nouveau_drm.h | 11 ++++++ drivers/gpu/drm/nouveau/nouveau_ttm.c | 17 ++++++++++ 3 files changed, 61 insertions(+), 30 deletions(-) -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
