[PATCH 3/9] drm/tegra: gem: Remove premature import restrictions

Thierry Reding
2019-11-28T15:37:35Z

From: Thierry Reding <treding@nvidia.com>

It's not known at import time whether or not all users of a DMA-BUF will
be able to deal with non-contiguous memory. Each user needs to verify at
map-time whether it can access the buffer.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/gpu/drm/tegra/gem.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 6dfad56eee2b..bc15b430156d 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -440,13 +440,6 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
err = tegra_bo_iommu_map(tegra, bo);
if (err < 0)
goto detach;
- } else {
- if (bo->sgt->nents > 1) {
- err = -EINVAL;
- goto detach;
- }
-
- bo->iova = sg_dma_address(bo->sgt->sgl);
}

bo->gem.import_attach = attach;
--
2.23.0