Messages in this thread | | | From | Michał Winiarski <> | Subject | [PATCH v3 0/4] drm: Use full allocated minor range for DRM | Date | Tue, 6 Sep 2022 16:01:13 +0200 |
| |
64 DRM device nodes is not enough for everyone. Upgrade it to ~512K (which definitely is more than enough).
To allow testing userspace support for >64 devices, add additional DRM modparam (skip_legacy_minors) which causes DRM to skip allocating minors in 0-192 range. Additionally - one minor tweak around minor DRM IDR locking and IDR lockdep annotations.
v1 -> v2: Don't touch DRM_MINOR_CONTROL and its range (Simon Ser)
v2 -> v3: Don't use legacy scheme for >=192 minor range (Dave Airlie) Add modparam for testing (Dave Airlie) Add lockdep annotation for IDR (Daniel Vetter)
Michał Winiarski (4): drm: Expand max DRM device number to full MINORBITS drm: Introduce skip_legacy_minors modparam drm: Use mutex for minors idr: Add might_alloc() annotation
drivers/gpu/drm/drm_drv.c | 55 ++++++++++++++++++++++----------------- lib/radix-tree.c | 3 +++ 2 files changed, 34 insertions(+), 24 deletions(-)
-- 2.37.3
| |