diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2024-04-24 08:13:35 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2024-08-29 20:14:29 +0200 |
| commit | f5b8794e17e40219f22cf9b1216db21e38aa8dbb (patch) | |
| tree | 571634c9318a25695027b398905328eeab273e18 /drivers/gpu/host1x | |
| parent | 4ed09565e0873a8ffdf6d71923f485bc778f2988 (diff) | |
drm/tegra: gem: Don't attach dma-bufs when not needed
The dma-buf import code currently attaches and maps all imported
dma-bufs to the drm device to get their sgt for mapping to the
directly managed IOMMU domain.
In many cases, like for newer chips (Tegra186+), the directly
managed IOMMU domain is, however, not used. Mapping to the drm
device can also cause issues e.g. with swiotlb since it is not
a real device.
To improve the situation, only attach and map imported dma-bufs
when required.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240424051335.2872574-2-cyndis@kapsi.fi
Diffstat (limited to 'drivers/gpu/host1x')
0 files changed, 0 insertions, 0 deletions