To allow sharing of implicit fences when exporting/importing dma_buf objects, set the 'resv' fields when importing or exporting GEM objects.
Signed-off-by: Mikko Perttunen mperttunen@nvidia.com --- drivers/gpu/drm/tegra/gem.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index 26af8daa9a16..731e6bdc01b4 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -431,6 +431,7 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm, }
bo->gem.import_attach = attach; + bo->gem.resv = buf->resv;
return bo;
@@ -683,6 +684,7 @@ struct dma_buf *tegra_gem_prime_export(struct drm_gem_object *gem, exp_info.size = gem->size; exp_info.flags = flags; exp_info.priv = gem; + exp_info.resv = gem->resv;
return drm_gem_dmabuf_export(gem->dev, &exp_info); }