04.02.2020 16:59, Thierry Reding пишет: > From: Thierry Reding <treding@xxxxxxxxxx> > > Hi, > > this contains a couple of fixes for a DMA API performance regression > that was introduced in v5.5 for older Tegra devices. Patches 1 and 2 > will likely have to be backported to v5.5. > > Thierry > > Thierry Reding (3): > drm/tegra: Relax IOMMU usage criteria on old Tegra > drm/tegra: Reuse IOVA mapping where possible > gpu: host1x: Set DMA direction only for DMA-mapped buffer objects > > drivers/gpu/drm/tegra/drm.c | 49 +++++++++++++++++++++++------------ > drivers/gpu/drm/tegra/gem.c | 10 ++++++- > drivers/gpu/drm/tegra/plane.c | 44 +++++++++++++++++-------------- > drivers/gpu/host1x/job.c | 34 +++++++++++++++++++++--- > 4 files changed, 96 insertions(+), 41 deletions(-) Works on Tegra20 and Tegra30, thank you very much :)
