Simon Ser 5dfaf5ea9c backend/drm: introduce wlr_drm_bo_handle_table ... Using GBM to import DRM dumb buffers tends to not work well. By using GBM we're calling some driver-specific functions in Mesa. These functions check whether Mesa can work with the buffer. Sometimes Mesa has requirements which differ from DRM dumb buffers and the GBM import will fail (e.g. on amdgpu). Instead, drop GBM and use drmPrimeFDToHandle directly. But there's a twist: BO handles are not ref'counted by the kernel and need to be ref'counted in user-space [1]. libdrm usually performs this bookkeeping and is used under-the-hood by Mesa. We can't re-use libdrm for this task without using driver-specific APIs. So let's just re-implement the ref'counting logic in wlroots. The wlroots implementation is inspired from amdgpu's in libdrm [2]. Closes: https://github.com/swaywm/wlroots/issues/2916 [1]: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/110 [2]: 1a4c0ec9ae/amdgpu/handle_table.c		2021-08-25 10:05:37 -04:00
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drm	backend/drm: introduce wlr_drm_bo_handle_table	2021-08-25 10:05:37 -04:00
headless	Move allocator stuff into new directory	2021-08-25 09:57:20 -04:00
libinput	backend: unify startup messages	2021-08-19 20:47:36 +02:00
multi	backend: introduce wlr_backend_finish	2021-05-21 22:13:54 +02:00
noop	backend/noop: drop attach_render/rollback_render	2021-07-29 09:48:33 -04:00
session	backend/session: use DRM_PRIMARY_MINOR_NAME	2021-06-17 00:28:04 +02:00
wayland	Move allocator stuff into new directory	2021-08-25 09:57:20 -04:00
x11	Move allocator stuff into new directory	2021-08-25 09:57:20 -04:00
backend.c	Move allocator stuff into new directory	2021-08-25 09:57:20 -04:00
meson.build	backend: make DRM and libinput backends optional	2021-07-22 09:56:38 -04:00