[RFC PATCH v1 4/6] gpu: host1x: Avoid implicit DMA backing with IOMMU
From: Dmitry Osipenko <hidden>
Date: 2018-07-26 23:22:39
Also in:
dri-devel, linux-iommu, linux-tegra, lkml, nouveau
Subsystem:
drm drivers, drm drivers for nvidia tegra, the rest · Maintainers:
David Airlie, Simona Vetter, Thierry Reding, Mikko Perttunen, Linus Torvalds
Host1x driver manages IOMMU by itself, backing DMA with IOMMU by the drivers core breaks the Host1x driver. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/gpu/host1x/dev.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index afabd33a48d9..0966415d4ccd 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c@@ -361,6 +361,7 @@ static int host1x_remove(struct platform_device *pdev) static struct platform_driver tegra_host1x_driver = { .driver = { .name = "tegra-host1x", + .no_implicit_iommu = true, .of_match_table = host1x_of_match, }, .probe = host1x_probe,
--
2.18.0
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