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| author | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2025-10-22 19:19:48 +0300 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2025-11-15 00:20:12 +0100 |
| commit | 7d7bb790aced3b1b8550b74e02fdfc001d044bee (patch) | |
| tree | cbd9965aa1e470667803d094634dec3e91c2a2e9 /tools/perf/scripts/python/libxed.py | |
| parent | e95b9ff6bfa400d34e1cfcd8062641ba3be821a7 (diff) | |
| download | linux-7d7bb790aced3b1b8550b74e02fdfc001d044bee.tar.gz linux-7d7bb790aced3b1b8550b74e02fdfc001d044bee.zip | |
drm/rockchip: Set VOP for the DRM DMA device
Use VOP for DMA operations performed by DRM core. Rockchip DRM driver
is backed by a virtual device that isn't IOMMU-capable, while VOP is the
actual display controller device backed by IOMMU. Fixes "swiotlb buffer
is full" warning messages originated from GEM prime code paths.
Note, that backporting is non-trivial as this depends on
commit 143ec8d3f9396 ("drm/prime: Support dedicated DMA device for dma-buf
imports"), which landed in v6.16 and commit 421be3ee36a4 ("drm/rockchip:
Refactor IOMMU initialisation"), which landed in v5.19.
Reported-by: Daniel Stone <daniels@collabora.com>
Fixes: 2048e3286f34 ("drm: rockchip: Add basic drm driver")
Cc: stable@vger.kernel.org # v6.16+
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20251022161948.199731-1-dmitry.osipenko@collabora.com
Diffstat (limited to 'tools/perf/scripts/python/libxed.py')
0 files changed, 0 insertions, 0 deletions