Commit graph

80 commits

Author SHA1 Message Date
Marius Vlad
9aa910c4d4 backend-drm: Fix count page flips on invalid outputs
Slight oversight of counting page flips from within the atomic commit
handler when we don't really have an output. Do that after *after*
checking for a valid output.

Fixes: cda8de1089, ("backend-drm: Count and display KMS page flips")

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2025-04-02 13:09:45 +00:00
Marius Vlad
cda8de1089 backend-drm: Count and display KMS page flips
This patch counts the page flips (either in atomic or legacy page flips)
for DRM outputs and prints them using the drm-backend scope.

Similar to the frame callback timer counter this installs a counter that
periodically computes page flips per a pre-defined interval.

This also includes a perfetto counter to display these in perfetto.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2025-03-06 16:09:42 +02:00
Derek Foreman
85d1ca7fab drm-backend: Set VRR_ENABLED property based on output configuration
Set up the VRR_ENABLED instead of always clearing it to 0.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2025-02-21 06:49:42 +00:00
Derek Foreman
c321cc3020 drm-backend: Add Variable Refresh Rate modes
Query the vrr_capable property for heads, and expose it to frontends.

Currently we only support game mode VRR, but expose VRR capabilities as
an enum in anticipation of supporting QMS VRR in the future.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2025-02-21 06:49:42 +00:00
Robert Mader
ce79976dfc backend-drm: Set default plane color space and range hints
Upstream KMS drivers currently default to either ITU-R BT.601 YCbCr or
ITU-R BT.709 YCbCr. Ensure consistent behavior by setting a default.
We use BT.601 as that is what our fallback shader uses at the moment.

Signed-off-by: Robert Mader <robert.mader@collabora.com>
2025-02-04 12:36:12 +00:00
Marius Vlad
207fed2710 Revert "shared/helpers.h: Migrate helpers.h to libweston"
This is problematic as we don't have namespacing for these and some of
the macros can interfere with other defines.

This reverts commit 8634c7e349.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2025-01-17 10:18:26 +02:00
Robert Mader
16e5406877 backend-drm: Add support for YUV plane color properties
The drm_color_encoding and drm_color_range enums are used for
YUV->RGB conversion and mirror what EGL_YUV_COLOR_SPACE_HINT_EXT
and EGL_SAMPLE_RANGE_HINT_EXT as well as our `yuva2rgba()`
shader func do. Add the necessary boiler plate for them.

Signed-off-by: Robert Mader <robert.mader@collabora.com>
2024-12-16 15:33:20 +00:00
Marius Vlad
8634c7e349 shared/helpers.h: Migrate helpers.h to libweston
As weston_windowed_output_get_api needs ARRAY_LENGTH() move helpers to a
libweston/ so other users can re-use that instead of re-defining these
all over. Easier for other front-ends to make use of them.

With this change windowed-output-api.h also includes the helpers header.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2024-11-25 11:26:35 +00:00
Derek Foreman
60d777803d drm: Remove unnecessary parameter from drm_output_state_alloc()
We never pass this anything but NULL.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2024-08-19 10:25:25 -05:00
Ray Smith
ee5b6bcc30 backend-drm: rename "virtual" to work with C++ compilers
"virtual" is a keyword in C++ so any C++ code including drm-internal.h
fails to compile.

Signed-off-by: Ray Smith <rsmith@brightsign.biz>
2024-07-24 08:48:25 +00:00
Naveen Kumar
ad039cdfd2 backend-drm: Enable atomic async flip support
Since DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP capability is available in the
mainline kernel, now we should enable back tearing support.

v2:

 - Bump kernel version to 6.9
 - include the fallback definitions

Reviewed-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-by: Derek Foreman <derek.foreman@collabora.com>
Signed-off-by: Naveen Kumar <naveen1.kumar@intel.com>
2024-05-28 09:33:51 +00:00
Pekka Paalanen
8556059785 backend-drm: set connector property "Colorspace"
Based on what is configured in weston_output, check and set the
colorimetry mode into KMS connector property "Colorspace".

This changes how video sinks interpret the pixels, and should allow
driving e.g. WCG monitors in BT.2020 mode.

This does not alter the pixel values themselves. That is the color
manager responsibility, and ultimately the responsibility of the
frontend and the end user to match the monitor driving mode with the
output color profile they chose.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2024-05-06 10:39:42 +00:00
Pekka Paalanen
8f31f172f8 backend-drm: add connector property "Colorspace"
Just the definitions.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2024-05-06 10:39:42 +00:00
Zhou Liang
8b3becf524 backend-drm: fix drm find wrong connector
In a multi-GPU environment, different cards may contain connectors with the
same ID, and drm_head_find_by_connector just use the connector_id to find
the connector, it may find the wrong connector.
Fix this by find the connector based on the drm device and connector id.

Signed-off-by: Zhou Liang <174381115@qq.com>
2024-01-12 12:11:45 +00:00
Philipp Zabel
1d59530e4b libweston: Set the presentation clock in the compositor
Let backends declare the presentation clocks they can use with a
new bitfield weston_backend::supported_presentation_clocks and set
presentation clock after loading the backend in the compositor.

Make weston_compositor_set_presentation_clock() internal and replace
weston_compositor_set_presentation_clock_software() with an exported
weston_compositor_backends_loaded(), which is called by the compositor
after the backend is loaded.

In the future, this can be extended to determine the subset of clocks
supported by all backends.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2023-08-02 11:51:56 +03:00
Marius Vlad
3e4aff6af4 backend-drm: Make DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP inert
Until kernel mainline does merge the aysnc page flip ioctl, make the
whole bit look like it's unsupported. We can further switch it back when
it lands into the kernel.

Fixes: 9203d98f

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reported-by: Simon Ser <contact@emersion.fr>
2023-07-18 14:58:08 +03:00
Derek Foreman
820346a372 libweston: Track damage on paint nodes instead of planes
Remove plane->damage and instead accumulate damage on paint
nodes.

This is a step towards allowing multiple overlapping outputs.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-07-11 07:26:43 -05:00
Michael Tretter
bcacd9ec5a backend-drm: schedule connector disable for detached head
Currently, if a head is detached, the entire state of the device is invalidated
to make sure that the connector is disabled on the next atomic commit. Side
effect of the invalid state is that all planes are disabled on the next commit.
This includes planes that are used with a different head that is not part of the
next atomic commit. Disabling the planes of unrelated outputs causes a blanking
of these outputs until output is repainted and the plane is reenabled.

Store the detached heads in a list on the output and disable the connectors for
all heads in this list in the next atomic commit.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2023-04-18 11:11:21 +02:00
Veeresh Kadasani
f35eccc6fa backend-drm: Add plane alpha DRM-property
This checks whether plane alpha is supported.
We get range of alpha value supported for plane
which is required for mapping view's alpha(0.0-1.0)
with drm plane alpha. No functional change.

Signed-off-by: Hsuan-Yu Lin <hlin@jp.adit-jv.com>
Signed-off-by: Veeresh Kadasani <external.vkadasani@jp.adit-jv.com>
Signed-off-by: Vinh Nguyen Trong <Vinh.NguyenTrong@vn.bosch.com>
2023-03-30 17:29:07 +01:00
Leandro Ribeiro
dc27a52216 drm-backend: address case in which writeback takes longer than atomic commit
In commit "drm-backend: add writeback connector screenshooter to
DRM-backend" we were failing the writeback screenshot when the DRM/KMS
driver would take longer than the atomic commit to finish. In this patch
we address such case.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2023-03-22 09:37:37 -03:00
Leandro Ribeiro
5b04895835 drm-backend: add writeback connector screenshooter to DRM-backend
In this patch, we add the writeback connector screenshooter to the
DRM-backend.

This will be useful to create plane composition tests that will run in
our CI, as VKMS already supports writeback connectors.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2023-03-22 09:37:37 -03:00
Leandro Ribeiro
247d492d64 drm-backend: add supported formats for writeback connectors
In the following commits we add a writeback screenshooter. For that,
we'll need the formats supported by the writeback connectors. So include
the supported formats in struct drm_writeback.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2023-03-22 09:37:37 -03:00
Michael Olbrich
0edcc9e5ba backend-drm: don't try to commit an empty state
With multiple DRM devices, the state for one device may be empty during
repaint_flush(). This can happen for example if an output of one device triggers
the repaint and there are no screens attached to the other device and therefore
no active outputs.

The atomic commit will actually fail because the commit contains the
DRM_MODE_PAGE_FLIP_EVENT flag but no CRTCs.

Avoid this by skipping the commit entirly. There is nothing to to anyways.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
2023-03-22 11:38:17 +00:00
Derek Foreman
b0f23dc09d backend-drm: Set rotation property on planes when possible
For now we just always set the plane up to have a "normal" rotation, so
no new features are added with this commit.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-02 12:25:56 -06:00
Derek Foreman
f89f440735 kms: Add plane rotation property
Add plane rotations to our recognized properties.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-02 12:25:56 -06:00
Derek Foreman
397ed8cec5 kms: Support bitmasks
From our perspective, a bitmask is pretty much the same as an enum, so
allow it to use the same path.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-02 12:25:56 -06:00
Derek Foreman
8057f28b98 backend-drm: Support tearing
Allow tearing for clients that request it, provided we can put their
content on a plane.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-01 10:12:55 -06:00
Derek Foreman
9203d98f8b backend-drm: Check for the atomic tearing capability
Check if our drm device supports atomic async page flips.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-01 10:12:55 -06:00
Pekka Paalanen
409993639e backend-drm: reset CRTC_VRR_ENABLED
Libweston has no support for VRR yet, so make sure it cannot be on by
accident.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-01-10 11:28:27 +00:00
Pekka Paalanen
e0d267fb12 backend-drm: reset CRTC_CTM
We are assuming that CRTC_CTM is pass-through, so better ensure it
really is pass-through rather than whatever the previous KMS client left
there.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-01-10 11:28:27 +00:00
Pekka Paalanen
d1ca5f71ee backend-drm: reset CRTC_DEGAMMA_LUT
We are assuming that CRTC_DEGAMMA_LUT is pass-through, so better ensure
it really is pass-through rather than whatever the previous KMS client
left there.

This too falls under deprecated_gamma_is_set check, because the legacy
gamma could use either GAMMA or DEGAMMA.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-01-10 11:28:27 +00:00
Pekka Paalanen
1acf69ac2f backend-drm: reset gamma on legacy KMS
We are assuming that gamma LUT is pass-through, so better ensure it
really is pass-through rather than whatever the previous KMS client left
there.

Unfortunately the legacy ioctl does not offer any way to reset the LUT
without actually crafting an identity LUT.

If the legacy gamma libdrm function indicates the feature is not
supported, do not try to use it again. This avoids hammering the legacy
gamma every frame when deprecated drm_output_set_gamma() is not used.

drm_output_set_gamma() is not updated to check/set this flag in order to
maintain its old behavior.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-01-10 11:28:27 +00:00
Pekka Paalanen
debfeb3049 backend-drm: reset CRTC_GAMMA_LUT
We are assuming that CRTC_GAMMA_LUT is pass-through, so better ensure it
really is pass-through rather than whatever the previous KMS client left
there.

Unfortunately, we have old drm_output_set_gamma() API that cms-static
and cms-colord plugins are using. To avoid trampling over them, do not
touch gamma after they did. Those plugins are deprecated, so there is no
reason to make set_gamma work through atomic.

drm_output_set_gamma() is called from weston_compositor_add_output()
through the output_created_signal. This is after drm_output_enable() and
before any KMS modeset or atomic commit on the CRTC. Therefore it is not
possible that there would be any KMS action in flight when
drm_output_set_gamma() is called, and so setting deprecated_gamma_is_set
should be non-racy - like setting CRTC_GAMMA_LUT itself.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-01-10 11:28:27 +00:00
Pekka Paalanen
dbce396c7c backend-drm: move *_add_prop() debug earlier
Move the debug printing before the bail-out if the property does not
exist. This means that trying to set a missing property will be logged,
and it can be identified by the property id being 0.

We are starting to program more KMS properties, and if KMS state
building fails, this gives better chances to figure out what happened.
For example, if we accidentally assume that some property always exists
when it doesn't.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-01-10 11:28:27 +00:00
Philipp Zabel
a9c1b41f3f backend-drm: drop use_pixman from drm_backend
Now that the renderer type is stored in struct weston_renderer,
use that instead of use_pixman to determine the renderer type.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2022-12-08 09:44:20 +00:00
Emmanuel Gil Peyrot
1c5ce4c2cc DRM: Add support for HDMI content type
Some monitors expose a selector for the kind of content that will get
displayed, allowing them to optimise their settings for this particular
content type.

I got access to such a monitor, sadly even setting it to game mode
didn’t lower its atrocious latency, but drm_info[1] reports it to be set
correctly so hopefully it’ll work better with other monitors.

[1] https://github.com/ascent12/drm_info

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
2022-11-03 15:40:00 +00:00
Derek Foreman
5079f0b2f9 helpers: Add a u64 from 2 u32 helper
We do this enough that having a single implementation for it is probably
a win.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-10-27 08:13:30 +00:00
vanfanel
3240ccc69d Don't change the max_bpc connector prop if mode=current.
As things are, even when mode=current is specified on the .ini file,
a full modeset is needed (and done), which causes a very noticeable
screen blinking. That is because setting the max_bpc on a connector
needs full modesetting.
The idea here is that if mode=current on the .ini, no modesetting
should be done, so the current max_bpc is programmed into the
connector.
But if a custom max-bpc=... is specified, that will be used instead,
even if mode=current on the .ini

Fixes: https://gitlab.freedesktop.org/wayland/weston/-/issues/660

Signed-off-by: vanfanel <redwindwanderer@gmail.com>
2022-09-23 11:05:34 +00:00
Michael Olbrich
2929b6c483 backend-drm: check that outputs are in fact ours
This is another followup to ffc011d6a3
("backend-drm: check that outputs and heads are in fact ours") which missed
some places.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
2022-06-23 14:00:04 +00:00
Pekka Paalanen
d24adbbe25 backend-drm: set connector max bpc
"max bpc" property is meant for working around faulty sink hardware.
Normally it should be set to the maximum possible value so that the
kernel driver has full freedom to choose the link bpc without being
artificially forced to lower color precision.

The default value is 16 because that is a nice round number and more
than any link technology I've heard is using today which would be 12.

Also offer an API set the value, so that weston.ini could be used in the
next patch for sink workaround purposes.

Closes: https://gitlab.freedesktop.org/wayland/weston/-/issues/612

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2022-06-15 12:58:38 +00:00
Philipp Zabel
ffc011d6a3 backend-drm: check that outputs and heads are in fact ours
As a first step towards heterogeneous outputs, ignore other backends'
heads and outputs. This is done by checking the destroy callbacks for
heads and outputs.

See: https://gitlab.freedesktop.org/wayland/weston/-/issues/268

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2022-06-10 09:27:43 +00:00
Luigi Santivetti
a62bf5ff48 drm-backend: stop parsing IN_FORMATS blobs, use libdrm instead
Before this change the drm-backend in Weston did the work of parsing DRM
blobs in order to query IN_FORMATS data, if available. This is also the
case for other DRM/KMS clients that use IN_FORMATS (i.e. X).

libdrm 2.4.108 with e641e2a6 ("xf86drm: add iterator API for DRM/KMS
IN_FORMATS blobs") introduced a dedicated API for querying IN_FORMATS data.

Bump the minimum required version to 2.4.108, stop parsing IN_FORMATS in
Weston and start using DRM iterators. In addition, remove fallback code for
libdrm <2.4.107.

Signed-off-by: Luigi Santivetti <luigi.santivetti@imgtec.com>
2022-06-07 09:35:14 +01:00
Michael Tretter
deebfd99e3 backend-drm: get the drm device from the output
If we have multiple drm devices, we cannot use the drm device from the backend,
because we would only get the primary device and not the device of the output.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:17:49 +02:00
Michael Tretter
d990c6a939 backend-drm: ignore heads from other devices
The compositor lists the heads from all devices, but we must only disable the
connectors that belong to the current device. Therefore, other heads must be
ignored.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:17:16 +02:00
Michael Tretter
345e705e33 backend-drm: move drm objects from backend to drm device
The outputs, heads, crtcs, and connectors are specific to a drm device and not
the backend in general.

Link them to the device that they belong to to be able to retrieve the
respective device.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:17:15 +02:00
Michael Tretter
c4685d9463 backend-drm: attach device to pending state
The commits happen per device instead of per backend. The pending state is
therefore per device as well. Allow to retrieve the device from the pending
state.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:14:11 +02:00
Michael Tretter
d89fcf10cb backend-drm: pass device through atomic commit handler
The atomic commit is device specific. If we have multiple kms devices, we need
to know which device was used for the atomic commit.

Pass the device instead of the backend through the atomic commit.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:13:23 +02:00
Michael Tretter
0d967bd7f4 backend-drm: extract device from backend
Extract the kms device from the backend to allow a better separation of the
backend and the kms device. This will allow to handle multiple kms devices with
a single drm backend.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:12:57 +02:00
Michael Tretter
2860933ded backend-drm: cleanup debugging
Get the backend at the beginning of the function instead of retrieving it from
another object in the debug statement. This simplifies refactoring, as the debug
statement is not affected by changes how the backend is retrieved.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
2022-06-03 09:04:29 +02:00
Pekka Paalanen
5151f9fe9e backend-drm: program HDR_OUTPUT_METADATA
Program the connector property HDR_OUTPUT_METADATA based on the EOTF
mode of the output.

For now, this changes only the EOTF. The colorimetry and luminance are
left undefined, to be filled in by later patches. This should still be
enough to put a video sink into HDR mode, albeit the response is
probably unknown.

drm_output keeps track of the currently existing blob id. If the blob
contents need to be re-created, this blob would be destroyed and the
field set to zero. In this patch, there is no provision for runtime
changing of HDR metadata, so there is no code doing that.

Destroying the blob at arbitrary times is not a problem, because the
kernel keeps a reference to the data as long as the blob id remains with
KMS.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2022-05-02 12:19:24 +00:00