The default DMA segment size was used when importing PRIME buffers, which resulted in a chance of them not being contiguous in the virtual IO space of the device and mtk_gem_prime_import_sg_table() complaining that the SG table was not contiguous as it expects. This series fixes this issue by 1) Using the correct DMA device when importing PRIME buffers, 2) Setting a more suitable DMA segment size on the DMA device than the default 64KB. Changes since v1: - Split into two patches, - Fixed an error path that would have returned 0. Alexandre Courbot (2): drm/mediatek: use correct device to import PRIME buffers drm/mediatek: set DMA max segment size drivers/gpu/drm/mediatek/mtk_drm_drv.c | 49 ++++++++++++++++++++++++-- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 ++ 2 files changed, 48 insertions(+), 3 deletions(-) -- 2.22.0.709.g102302147b-goog _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
