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This helper is responsible for listening for new DRM devices and
create new child DRM backends as necessary.
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This will allow the DRM backend to reload its lessee list.
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This struct contains additional information for session device
change events, such as the DRM connector ID that has changed.
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Instead of hardcoding the string "card", use DRM_PRIMARY_MINOR_NAME.
Some systems may use another prefix, e.g. OpenBSD uses "drm" instead.
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This moves the magic incantation into libdrm and is clearer. See
[1] for details.
While at it, fixup the doc comment and improve logging.
[1]: https://gitlab.freedesktop.org/mesa/drm/-/commit/523b3658aa8efa746417e916c987de23740ce313
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This was lost in the session_impl removal refactor.
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libseat provides all session functionality, so there is no longer need
for a session backend abstraction. The libseat device ID, seat handle
and event loop handle are moved to the main wlr_session and wlr_device
structs.
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This is instead delegated to libseat.
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This is instead delegated to libseat.
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This is instead delegated to libseat.
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As explained in [1], user-space should perform a drmModeGetResources
call to figure out whether a device supports KMS.
[1]: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/127
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This requires a change to the type of `struct wlr_tablet` and
`wlr_tablet_init` signature, both of which are part of the unstable API.
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Sometimes wlr_session_find_gpus will encounter an error. This is
different from finding zero GPUs.
On error, wlr_session_find_gpus already returns -1. However, this is
casted to size_t, so callers uncorrectly assume this is a success.
Instead, make wlr_session_find_gpus return a ssize_t and allow callers
to handle the error accordingly.
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If a GPU doesn't show up in 10s, bail out and return zero GPUs.
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This is more idiomatic wlroots API. The new name makes it clear that the
signal is emitted when wlr_session.active changes.
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Wait for a DRM device if none is found in wlr_session_find_gpus. This
can happen if the compositor is loaded before the display kernel driver.
This supersedes the logind CanGraphical property.
To test, e.g. with i915 and sway:
rmmod -f i915
sway &
modprobe i915
Closes: https://github.com/swaywm/wlroots/issues/2093
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This is triggered when a new DRM card is added.
An easy way to test this patch is `modprobe vkms`.
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We're only interested in card devices. The loop over wlr_session.devices
would take care of ignoring non-card events, but a future patch will
listen to udev "add" events as well.
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Instead of operating on FDs in {open,close}_device, operate on
wlr_devices. This avoids the device lookup in wlr_session and allows
callers to have access to wlr_device fields.
For now, we use it to remove wlr_session_signal_add and replace it with
a more idiomatic wlr_session.events.change field. In the future, other
events will be added.
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When wlr_session_open_file fails, don't return the FD, otherwise the
caller will think the call succeeded.
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https://github.com/FreeBSDDesktop/libudev-devd/commit/f11ee5b418c740ba6fd4c946ab10b0d89702e4d0
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With assertions disabled, it should make sense to return NULL.
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The documentation for wayland-server.h says:
> Use of this header file is discouraged. Prefer including
> wayland-server-core.h instead, which does not include the server protocol
> header and as such only defines the library PI, excluding the deprecated API
> below.
Replacing wayland-server.h with wayland-server-core.h allows us to drop the
WL_HIDE_DEPRECATED declaration.
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This is the first step towards being able to run via DRM leasing and on render
nodes.
Test with:
export WLR_BACKENDS=drm
export WLR_SESSION=noop
export WLR_DRM_DEVICES=/dev/dri/renderD128
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This prevents some annoying issues when e.g. not including wlr/config.h or
making a typo in the guard name.
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Valid values are "logind"/"systemd" and "direct". If WLR_SESSION is set,
only its value is potentially tried; it will not try any other option.
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On some systems (most notably laptops with two GPUs) there are GPUs that
don't have attached outputs. However, we still want to load those GPUs
because they could still be used by the compositor for rendering.
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This reverts commit ef0a6ea4d2934ec014d791150c42348061ec4f7f, reversing
changes made to 8d03bc9178d8544cbcd24293ece6ac9f1698e602.
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It's not the backend's responsibility to destroy the session anymore.
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VLAs are optional C11 features and not supported by C++.
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