diff options
| author | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2025-10-22 19:19:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-08 10:17:16 +0100 |
| commit | 78bc88fda96c1759ced089a65747be37daa06928 (patch) | |
| tree | f75703820c673a300f0102772fef596af4f5cdaa /tools/perf/scripts/python | |
| parent | 7cdb9a9da935c687563cc682155461fef5f9b48d (diff) | |
drm/rockchip: Set VOP for the DRM DMA device
commit 7d7bb790aced3b1b8550b74e02fdfc001d044bee upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions