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authorDave Airlie <airlied@redhat.com>2022-11-24 04:05:43 +0300
committerDave Airlie <airlied@redhat.com>2022-11-24 04:05:43 +0300
commitd47f9580839eb6fe568e38b2084d94887fbf5ce0 (patch)
tree2493555057f8e5c850590d7438fdbf4472666201 /drivers/gpu/drm/tegra
parent3d335a523b938a445a674be24d1dd5c7a4c86fb6 (diff)
parenteb7081409f94a9a8608593d0fb63a1aa3d6f95d8 (diff)
downloadlinux-d47f9580839eb6fe568e38b2084d94887fbf5ce0.tar.xz
Backmerge tag 'v6.1-rc6' into drm-next
Linux 6.1-rc6 This is needed for drm-misc-next and tegra. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
-rw-r--r--drivers/gpu/drm/tegra/drm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 6748ec1e0005..a1f909dac89a 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1093,6 +1093,10 @@ static bool host1x_drm_wants_iommu(struct host1x_device *dev)
struct host1x *host1x = dev_get_drvdata(dev->dev.parent);
struct iommu_domain *domain;
+ /* Our IOMMU usage policy doesn't currently play well with GART */
+ if (of_machine_is_compatible("nvidia,tegra20"))
+ return false;
+
/*
* If the Tegra DRM clients are backed by an IOMMU, push buffers are
* likely to be allocated beyond the 32-bit boundary if sufficient