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2022-10-14backend/drm: use atomic API to fetch current connector's CRTCSimon Ser
We were using the legacy API (with a detour through drmModeEncoder) to find out the current CRTC for a connector. Use the atomic API when available. Also extract the whole logic into a separate function for better readability, and better handle errors.
2022-10-13backend/drm: use wl_container_of() instead of casts for wlr_drm_modeSimon Ser
Instead of casting a wlr_output_mode to wlr_drm_mode, use wl_container_of() for slightly better type safety.
2022-10-13backend/drm/legacy: Fix whitespaceAlexander Orzechowski
This confused me while reading through.
2022-10-10backend/drm: drop drm_connector_set_mode()Simon Ser
Instead of special-casing modesets, we can just cut the wrapper and directly call drm_crtc_page_flip(). drm_connector_test() should already have the checks previously done in drm_connector_set_mode(), all we need to do is update enabled/mode after a successful atomic commit.
2022-10-07backend/drm: allocate connector CRTC on lease creationSimon Zeni
This was leading to crash in compositors if the wanted connector had no CRTC
2022-10-07backend/drm: nuke wlr_drm_connector.desired_enabledSimon Ser
This field becomes stale too easily: for instance, see 6adca4089cf4 ("backend/drm: don't unconditionally set desired_enabled"). Additionally, drm_connector_alloc_crtc() needs to do some weird dance, restoring its previous value. Instead, add a connector arg to realloc_crtcs() to indicate a new connector we want to enable.
2022-10-07backend/drm: drop unnecessary wlr_drm_connector.crtc checksSimon Ser
drm_connector_alloc_crtc() already checks this.
2022-10-03backend/drm: remove outdated TODOSimon Ser
This has been addressed in 8795dde94eeb ("Initialize connectors current mode to the mode used by KMS on startup.").
2022-10-03backend/drm: don't unconditionally set desired_enabledSimon Ser
We were unconditonally setting desired_enabled = true for all connected connectors. This makes realloc_crtcs() always keep a CRTC active for these, even if the user doesn't want to enable them.
2022-09-30backend/drm: fix missing wlr_output_state.allow_artifactsSimon Ser
Without allow_artifacts, applying the new state will fail because it requires ALLOW_MODESET. Fixes VT switch and disabling CRTCs.
2022-09-30output: add wlr_output_state.allow_artifactsSimon Ser
When starting up, the compositor might call wlr_output_set_mode() with a mode which is already the current one. wlroots will detect this and make the wlr_output_set_mode() call a no-op. During the next wlr_output_commit() call, wlroots will perform an atomic commit without the ALLOW_MODESET flag. This is an issue, because some drivers need ALLOW_MODESET even if the mode is the same. For instance, if the FB stride or modifier changed, some drivers require a modeset. Add a new flag "allow_artifacts" which is set when the compositor calls mode-setting functions. Use this flag to figure out whether we want to perform atomic commits with ALLOW_MODESET. (The name "allow_artifacts" is picked because ALLOW_MODESET is a misnomer, see [1].) [1]: https://patchwork.freedesktop.org/patch/505107/ Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3499
2022-09-22backend/drm: pass through mode picture aspect ratioSimon Ser
2022-09-21backend/drm: de-duplicate wlr_drm_mode creationSimon Ser
Introduce a function to convert a drmModeModeInfo into a new wlr_drm_mode.
2022-09-16Only set max_bpc when full modesetting is being done.vanfanel
2022-09-16Initialize connectors current mode to the mode used by KMS on startup.vanfanel
2022-08-30output: fail commits if adaptive sync cannot be enabledSimon Ser
Previously, adaptive sync was just a hint and wouldn't make any atomic commit fail if the backend didn't support it. The main reason is wlr_output_test wasn't supported at the time. Now that we have a way for compositors to test whether a change can work, let's remove the exception for adaptive sync and convert it to a regular output state field.
2022-08-22Use env helpersAlexander Orzechowski
2022-08-18Use wl_signal_emit_mutableAlexander Orzechowski
2022-08-10backend/drm: drop enum wlr_drm_connector_statusSimon Ser
We can just use libdrm's drmModeConnection enum instead.
2022-08-10backend/drm: drop WLR_DRM_CONN_NEEDS_MODESETSimon Ser
- Add wlr_output.enabled checks to CONNECTED checks - Replace NEEDS_MODESET with CONNECTED
2022-07-25backend/drm: use drmModeConnectorGetPossibleCrtcsSimon Ser
This function has been merged in libdrm. References: https://gitlab.freedesktop.org/mesa/drm/-/commit/3ee004ef529f43366fdd1f4d32b26872cc82c6ca
2022-07-25backend/drm: use drmModeGetConnectorTypeNameSimon Ser
No need to manually maintain this table now. The wlroots names and the libdrm (= kernel) names all match. References: https://gitlab.freedesktop.org/mesa/drm/-/commit/50f8d517733d24fce6693ffae552f9833e2e6aa9
2022-06-19backend/drm: set "max bpc" to the maxSimon Ser
"max bpc" is a maximum value, the driver is free to choose a smaller value depending on the bandwidth available. Some faulty monitors misbehave with higher bpc values. We'll add a workaround if users get hit by these in practice. References: https://gitlab.freedesktop.org/wayland/weston/-/issues/612
2022-06-19backend/drm: remove unused CRTC count checkSimon Ser
drmIsKMS already checks for this.
2022-06-07backend/drm: fix NULL pointer deference due to typoIsaac Freund
2022-06-07backend/drm: make serial optionalSimon Ser
The EDID 1.4 spec says that the serial number is optional: > If this field is not used, then enter “00h, 00h, 00h, 00h”. Leave the wlr_output.serial field NULL in that case, and hide it from the output description.
2022-06-07backend/drm: unconditionally set "content type" to graphicsSimon Ser
CTA-861-G says that "graphics" is used to indicate non-analog (ie, digital) content. With that bit set, the sink should turn off analog reconstruction and other related filtering.
2022-06-02backend/drm: fix check for no-op commitsIsaac Freund
Since 6936e163b, we short-circut no-op commits as an optimization. However, the logic in the check was slightly off.
2022-06-02backend/drm: short-circuit no-op commitsSimon Ser
Some output commits (changing e.g. the output scale or transform) don't require any change in the KMS state. Instead of going through a KMS commit, return early. Blocking KMS commits can be expensive.
2022-06-01backend/drm: make commits without a buffer blockingSimon Ser
The wlr_output API requires compositors to wait for wlr_output.frame before submitting a new buffer. However, compositors can perform a commit which doesn't involve a buffer anytime. If the commit is a modeset, we set DRM_MODE_ATOMIC_ALLOW_MODESET and block until the commit is done. If it isn't, we currently always perform a non-blocking commit. This is an issue because a previous page-flip might still be in flight kernel-side, returning EBUSY. Fix this by using blocking commits when a buffer isn't submitted by the compositor. Closes: https://github.com/swaywm/sway/issues/6962 References: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/2239
2022-05-31backend/drm: improve atomic commit flag loggingSimon Ser
We weren't logging all of the flags, which made debugging more difficult.
2022-05-30output: pass wlr_output_state to backendSimon Ser
Groundwork for the following commits. The goal is to allow users to specify their own wlr_output_state instead of wlr_output.pending.
2022-05-26backend/drm: fix crash with null serialvaxerski
backend/drm: use serial_str instead
2022-05-26output: turn make/model/serial into char *Simon Ser
This allows the make/model/serial to be NULL when unset, and allows them to be longer than the hardcoded array length. This is a breaking change: compositors need to handle the new NULL case, and we stop setting make/model to useless "headless" or "wayland" strings.
2022-05-26backend/drm: fix crash in init_drm_surfaceSimon Ser
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3434
2022-05-25backend/drm: remove wlr_drm_surface.{width,height}Simon Ser
This information is stored in wlr_swapchain, no need to duplicate it.
2022-05-24backend/drm: allow non-linear modifiers for multi-GPUSimon Ser
Prior to [1], if an entry in a DRM format set was different than a single LINEAR modifier, implicit modifiers were always allowed. This has changed and now implicit modifiers are only allowed if INVALID is in the list of modifiers. So now we can safely enable explicit modifiers for cross-GPU imports, without risking receiving buffers with an implicit modifier. This should improve perf a bit on setups where two GPUs from the same vendor are used. This fixes the first bullet point from [2]. [1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3231 [2]: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3331
2022-05-11backend/drm: fetch EDID manufacturer from udev_hwdbSimon Ser
Maintaining our internal table up-to-date is tedious: one needs to manually go through the PnP ID registry [1] and check whether we're missing any entry. udev_hwdb already has an API to fetch a manufacturer name from its PnP ID. Use that instead. [1]: https://uefi.org/pnp_id_list
2022-04-28Zero-initialize structs in init functionsSimon Ser
Ensures there is no field left to its previous undefined value after calling an init function.
2022-03-13Pass O_CLOEXEC to drmModeCreateLease callsSamuel Čavoj
The lease_fd is currently being leaked to child processes Link: https://github.com/swaywm/sway/issues/4286#issuecomment-1065987957
2021-12-14backend/drm: use drmCloseBufferHandleSimon Ser
This has been added in [1] and allows us to close buffer handles without manually calling drmIoctl. [1]: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/192
2021-12-14backend/drm: use drmModeFormatModifierBlobIterNextSimon Ser
This avoids open-coding our own logic. The resulting code is more readable. References: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/146
2021-12-13backend/drm: add wlr_drm_backend_monitorChris Chamberlain
This helper is responsible for listening for new DRM devices and create new child DRM backends as necessary.
2021-12-09output: introduce wlr_output_set_nameSimon Ser
wlroots picks names for all outputs, but it might be desirable for compositor to override it. For instance, Sway will use a headless output as a fallback in case no outputs are connected. Sway wants to clearly label the fallback output as such and label "real" headless outputs starting from HEADLESS-1.
2021-11-29backend/drm: poison buffers which cannot be scanned outSimon Ser
Rather than repeatedly trying to import DMA-BUFs which cannot be scanned out, mark the failed ones with a special "poison" marker. Inspired from [1]. [1]: https://gitlab.freedesktop.org/wayland/weston/-/merge_requests/731
2021-11-26backend/drm: always add LINEAR to supported modifiersSimon Ser
2021-11-26backend/drm: fail on explicit modifier in drmModeAddFB2Simon Ser
drmModeAddFB2 doesn't support explicit modifiers. Only accept INVALID which indicates an implicit modifier and LINEAR which may indicate that GBM_BO_USE_LINEAR has been used.
2021-11-26Require INVALID for implicit format modifiersSimon Ser
See [1] for the motivation. [1]: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/75
2021-11-19backend/drm: scan leases on ueventSimon Ser
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3181
2021-11-19backend/drm: introduce wlr_drm_leaseSimon Ser
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3183
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