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2025-02-13drm: Introduce device wedged eventRaag Jadav
Introduce device wedged event, which notifies userspace of 'wedged' (hanged/unusable) state of the DRM device through a uevent. This is useful especially in cases where the device is no longer operating as expected and has become unrecoverable from driver context. Purpose of this implementation is to provide drivers a generic way to recover the device with the help of userspace intervention without taking any drastic measures (like resetting or re-enumerating the full bus, on which the underlying physical device is sitting) in the driver. A 'wedged' device is basically a device that is declared dead by the driver after exhausting all possible attempts to recover it from driver context. The uevent is the notification that is sent to userspace along with a hint about what could possibly be attempted to recover the device from userspace and bring it back to usable state. Different drivers may have different ideas of a 'wedged' device depending on hardware implementation of the underlying physical device, and hence the vendor agnostic nature of the event. It is up to the drivers to decide when they see the need for device recovery and how they want to recover from the available methods. Driver prerequisites -------------------- The driver, before opting for recovery, needs to make sure that the 'wedged' device doesn't harm the system as a whole by taking care of the prerequisites. Necessary actions must include disabling DMA to system memory as well as any communication channels with other devices. Further, the driver must ensure that all dma_fences are signalled and any device state that the core kernel might depend on is cleaned up. All existing mmaps should be invalidated and page faults should be redirected to a dummy page. Once the event is sent, the device must be kept in 'wedged' state until the recovery is performed. New accesses to the device (IOCTLs) should be rejected, preferably with an error code that resembles the type of failure the device has encountered. This will signify the reason for wedging, which can be reported to the application if needed. Recovery -------- Current implementation defines three recovery methods, out of which, drivers can use any one, multiple or none. Method(s) of choice will be sent in the uevent environment as ``WEDGED=<method1>[,..,<methodN>]`` in order of less to more side-effects. If driver is unsure about recovery or method is unknown (like soft/hard system reboot, firmware flashing, physical device replacement or any other procedure which can't be attempted on the fly), ``WEDGED=unknown`` will be sent instead. Userspace consumers can parse this event and attempt recovery as per the following expectations. =============== ======================================== Recovery method Consumer expectations =============== ======================================== none optional telemetry collection rebind unbind + bind driver bus-reset unbind + bus reset/re-enumeration + bind unknown consumer policy =============== ======================================== The only exception to this is ``WEDGED=none``, which signifies that the device was temporarily 'wedged' at some point but was recovered from driver context using device specific methods like reset. No explicit recovery is expected from the consumer in this case, but it can still take additional steps like gathering telemetry information (devcoredump, syslog). This is useful because the first hang is usually the most critical one which can result in consequential hangs or complete wedging. Consumer prerequisites ---------------------- It is the responsibility of the consumer to make sure that the device or its resources are not in use by any process before attempting recovery. With IOCTLs erroring out, all device memory should be unmapped and file descriptors should be closed to prevent leaks or undefined behaviour. The idea here is to clear the device of all user context beforehand and set the stage for a clean recovery. Example ------- Udev rule:: SUBSYSTEM=="drm", ENV{WEDGED}=="rebind", DEVPATH=="*/drm/card[0-9]", RUN+="/path/to/rebind.sh $env{DEVPATH}" Recovery script:: #!/bin/sh DEVPATH=$(readlink -f /sys/$1/device) DEVICE=$(basename $DEVPATH) DRIVER=$(readlink -f $DEVPATH/driver) echo -n $DEVICE > $DRIVER/unbind echo -n $DEVICE > $DRIVER/bind Customization ------------- Although basic recovery is possible with a simple script, consumers can define custom policies around recovery. For example, if the driver supports multiple recovery methods, consumers can opt for the suitable one depending on scenarios like repeat offences or vendor specific failures. Consumers can also choose to have the device available for debugging or telemetry collection and base their recovery decision on the findings. This is useful especially when the driver is unsure about recovery or method is unknown. v4: s/drm_dev_wedged/drm_dev_wedged_event Use drm_info() (Jani) Kernel doc adjustment (Aravind) v5: Send recovery method with uevent (Lina) v6: Access wedge_recovery_opts[] using helper function (Jani) Use snprintf() (Jani) v7: Convert recovery helpers into regular functions (Andy, Jani) Aesthetic adjustments (Andy) Handle invalid recovery method v8: Allow sending multiple methods with uevent (Lucas, Michal) static_assert() globally (Andy) v9: Provide 'none' method for device reset (Christian) Provide recovery opts using switch cases v11: Log device reset (André) Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: André Almeida <andrealmeid@igalia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204070528.1919158-2-raag.jadav@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-02-13drm/atomic-helper: Introduce drm_atomic_helper_reset_crtc()Herve Codina
drm_atomic_helper_reset_crtc() allows to reset the CRTC active outputs. This resets all active components available between the CRTC and connectors. Signed-off-by: Herve Codina <herve.codina@bootlin.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250210132620.42263-3-herve.codina@bootlin.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-13drm: Fix DSC BPP increment decodingImre Deak
Starting with DPCD version 2.0 bits 6:3 of the DP_DSC_BITS_PER_PIXEL_INC DPCD register contains the NativeYCbCr422_MAX_bpp_DELTA field, which can be non-zero as opposed to earlier DPCD versions, hence decoding the bit_per_pixel increment value at bits 2:0 in the same register requires applying a mask, do so. Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Fixes: 0c2287c96521 ("drm/display/dp: Add helper function to get DSC bpp precision") Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250212161851.4007005-1-imre.deak@intel.com
2025-02-13drm/i2c: tda998x: drop support for platform_dataDmitry Baryshkov
After the commit 0fb2970b4b6b ("drm/armada: remove non-component support") there are no remaining users of the struct tda998x_encoder_params. Drop the header and corresponding API from the TDA998x driver. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250113-drm-move-tda998x-v3-1-214e0682a5e4@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-02-12drm/sched: Use struct for drm_sched_init() paramsPhilipp Stanner
drm_sched_init() has a great many parameters and upcoming new functionality for the scheduler might add even more. Generally, the great number of parameters reduces readability and has already caused one missnaming, addressed in: commit 6f1cacf4eba7 ("drm/nouveau: Improve variable name in nouveau_sched_init()"). Introduce a new struct for the scheduler init parameters and port all users. Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Acked-by: Matthew Brost <matthew.brost@intel.com> # for Xe Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> # for Panfrost and Panthor Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com> # for Etnaviv Reviewed-by: Frank Binns <frank.binns@imgtec.com> # for Imagination Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> # for Sched Reviewed-by: Maíra Canal <mcanal@igalia.com> # for v3d Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Lizhi Hou <lizhi.hou@amd.com> # for amdxdna Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250211111422.21235-2-phasta@kernel.org
2025-02-12drm: ensure drm headers are self-contained and pass kernel-docJani Nikula
Ensure drm headers build, are self-contained, have header guards, and have no kernel-doc warnings, when CONFIG_DRM_HEADER_TEST=y. The mechanism follows similar patters used in i915, xe, and usr/include. To cover include/drm, we need to recurse there using the top level Kbuild and the new include/Kbuild files. v4: check for CONFIG_WERROR in addition to CONFIG_DRM_WERROR v3: adapt to upstream build changes v2: make DRM_HEADER_TEST depend on DRM Suggested-by: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/d8ad1c6d707f38a55987f616cb9650aef30b84e1.1737556766.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-02-12drm/client: include types.h to make drm_client_event.h self-containedJani Nikula
drm_client_event.h uses bool without types.h, include it. Fixes: bf17766f1083 ("drm/client: Move suspend/resume into DRM client callbacks") Cc: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/6c69cb005cc3a2b968b6c9675d0ba03173f6c574.1737556766.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-02-10drm/panel: remove unnecessary forward declarationLuca Ceresoli
'struct drm_device' is not used at all in this file since commit aa6c43644bc5 ("drm/panel: drop drm_device from drm_panel"). Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-1-93df60faa756@bootlin.com
2025-02-07drm/file: Add fdinfo helper for printing regions with prefixAdrián Larumbe
This is motivated by the desire of some drivers (eg. Panthor) to print the size of internal memory regions with a prefix that reflects the driver name, as suggested in the previous documentation commit. That means adding a new argument to print_size and making it available for DRM users. Cc: Tvrtko Ursulin <tursulin@ursulin.net> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-3-adrian.larumbe@collabora.com
2025-02-07drm/scheduler: Remove some unused prototypesTvrtko Ursulin
As far as I can tell some removed prototypes were introduced by probably bad conflict resolution in fc58764bbf60 ("Merge tag 'amd-drm-next-6.2-2022-11-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-next"). Remove them. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@redhat.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <pstanner@redhat.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250205110410.7941-1-tvrtko.ursulin@igalia.com
2025-02-06drm/dp: Increase eDP display control capability sizeSuraj Kandpal
Increase the eDP display control capability size to take into account the general capability register 703 and 704 that have recently been added. Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250206063253.2827017-3-suraj.kandpal@intel.com
2025-02-06drm/dp: Add eDP 1.5 bit definitionSuraj Kandpal
Add the eDP revision bit value for 1.5. Spec: eDPv1.5 Table 16-5 Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Tested-by: Ben Kao <ben.kao@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250206063253.2827017-2-suraj.kandpal@intel.com
2025-02-06Merge drm/drm-next into drm-misc-nextMaxime Ripard
Bring rc1 to start the new release dev. Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-06Merge remote-tracking branch 'drm-misc/drm-misc-next-fixes' into drm-misc-fixesMaxime Ripard
Merge the few remaining patches stuck into drm-misc-next-fixes. Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-05Merge drm/drm-next into drm-intel-nextJani Nikula
Sync with v6.14-rc1. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-02-04drm/drm_mode_object: fix typo in kerneldocLuca Ceresoli
Remove unintended extra word. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Acked-by: Louis Chauvet <louis.chauvet@bootlin.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204-drm-small-improvements-v4-1-d6bbc92f12f1@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-02-04drm/display/dp: Define function to setup Extended wake timeSuraj Kandpal
Extended wake timeout request helps to give additional time by reading the DPCD register through which sink requests the minimal amount of time required to wake the sink up. Source device shall keep retying the AUX tansaction till the extended timeout that is being granted for LTTPRs from the sink device. --v2 -Add documentation [Dmitry] Spec: DP v2.1 Section 3.6.12.3 Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250122053358.1545039-3-suraj.kandpal@intel.com
2025-02-04drm/dp: Add the DPCD register required for Extended wake timeoutSuraj Kandpal
Add DPCD registers required to configure Extended Wake Timeout for LTTPR. Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250122053358.1545039-2-suraj.kandpal@intel.com
2025-01-30Merge drm/drm-next into drm-xe-nextLucas De Marchi
Backmerge drm-next to get the common APIs and refactors as well as getting the display changes from i915 in xe so the probe order can be improved. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-01-28drm/xe/ptl: Update the PTL pci id tableMatt Atwood
Update to current bspec table. Bspec: 72574 Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com> Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250128175102.45797-1-matthew.s.atwood@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-01-28drm/xe/bmg: Add new PCI IDsShekhar Chauhan
Add 3 new PCI IDs for BMG. v2: Fix typo -> Replace '.' with ',' Signed-off-by: Shekhar Chauhan <shekhar.chauhan@intel.com> Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250128162015.3288675-1-shekhar.chauhan@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-01-27drm/i915/lspcon: do not hardcode settle timeoutGiedrius Statkevičius
Avoid hardcoding the LSPCON settle timeout because it takes a longer time on certain chips made by certain vendors. Use the function that already exists to determine the timeout. Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Signed-off-by: Giedrius Statkevičius <giedriuswork@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241017075725.207384-1-giedriuswork@gmail.com Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-01-25drm/print: Include drm_device.hGustavo Sousa
The header drm_print.h uses members of struct drm_device pointers, as such, it should include drm_device.h to let the compiler know the full type definition. Without such include, users of drm_print.h that don't explicitly need drm_device.h would bump into build errors and be forced to include the latter. Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250121210935.84357-1-gustavo.sousa@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-01-24drm/dp_mst: Fix drm RAD printWayne Lin
[Why] The RAD of sideband message printed today is incorrect. For RAD stored within MST branch - If MST branch LCT is 1, it's RAD array is untouched and remained as 0. - If MST branch LCT is larger than 1, use nibble to store the up facing port number in cascaded sequence as illustrated below: u8 RAD[0] = (LCT_2_UFP << 4) | LCT_3_UFP RAD[1] = (LCT_4_UFP << 4) | LCT_5_UFP ... In drm_dp_mst_rad_to_str(), it wrongly to use BIT_MASK(4) to fetch the port number of one nibble. [How] Adjust the code by: - RAD array items are valuable only for LCT >= 1. - Use 0xF as the mask to replace BIT_MASK(4) V2: - Document how RAD is constructed (Imre) V3: - Adjust the comment for rad[] so kdoc formats it properly (Lyude) Fixes: 2f015ec6eab6 ("drm/dp_mst: Add sideband down request tracing + selftests") Cc: Imre Deak <imre.deak@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Harry Wentland <hwentlan@amd.com> Cc: Lyude Paul <lyude@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250113091100.3314533-2-Wayne.Lin@amd.com
2025-01-21drm: writeback: Create drmm variants for drm_writeback_connector initializationLouis Chauvet
To allows driver to only use drmm objects, add helper to create drm_writeback_connectors with automated lifetime management. Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250116-google-vkms-managed-v9-7-3e4ae1bd05a0@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-01-21drm/managed: Add DRM-managed alloc_ordered_workqueueLouis Chauvet
Add drmm_alloc_ordered_workqueue(), a helper that provides managed ordered workqueue cleanup. The workqueue will be destroyed with the final reference of the DRM device. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250116-google-vkms-managed-v9-3-3e4ae1bd05a0@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-01-20drm/sched: Add helper to check job dependenciesTvrtko Ursulin
Lets isolate scheduler internals from drivers such as pvr which currently walks the dependency array to look for fences. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@redhat.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <pstanner@redhat.com> Reviewed-by: Matt Coster <matt.coster@imgtec.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250113103341.43914-1-tvrtko.ursulin@igalia.com
2025-01-16drm/i915/display: Add MTL subplatforms definitionDnyaneshwar Bhadane
Separate MTL-U platform PCI ids in one define macro. Add the MTL U/ARL U as subplatform member in MTL platform description structure to use display.platform.<platform> from intel_display structure instead of IS_<PLATFORM>() in display code path. v2: - Club ARL-u in MTL and identify ARL-u as MTL-u subplatform(Jani) Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com> Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241217201301.3593054-2-dnyaneshwar.bhadane@intel.com
2025-01-15drm/bridge: fix documentation for the hdmi_audio_prepare() callbackDmitry Baryshkov
Fix c&p error and change linuxdoc comment for the hdmi_audio_prepare() callback from drm_bridge_funcs to mention the callback name instead of the original prepare() callback. Fixes: 0beba3f9d366 ("drm/bridge: connector: add support for HDMI codec framework") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-next/20250106174645.463927e0@canb.auug.org.au/ Acked-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250107-drm-bridge-fix-docs-v1-1-84e539e6f348@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-14Merge drm/drm-next into drm-misc-next-fixesMaxime Ripard
drm-next has the dmem cgroup patches we need to merge fixes for. Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-01-14drm/atomic: clarify the rules around drm_atomic_state->allow_modesetSimona Vetter
msm is automagically upgrading normal commits to full modesets, and that's a big no-no: - for one this results in full on->off->on transitions on all these crtc, at least if you're using the usual helpers. Which seems to be the case, and is breaking uapi - further even if the ctm change itself would not result in flicker, this can hide modesets for other reasons. Which again breaks the uapi v2: I forgot the case of adding unrelated crtc state. Add that case and link to the existing kerneldoc explainers. This has come up in an irc discussion with Manasi and Ville about intel's bigjoiner mode. Also cc everyone involved in the msm irc discussion, more people joined after I sent out v1. v3: Wording polish from Pekka and Thomas Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Pekka Paalanen <pekka.paalanen@collabora.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Simon Ser <contact@emersion.fr> Cc: Manasi Navare <navaremanasi@google.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Simona Vetter <simona.vetter@intel.com> Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20250108172417.160831-1-simona.vetter@ffwll.ch
2025-01-13drm/ttm: Balance ttm_resource_cursor_init() and ttm_resource_cursor_fini()Thomas Hellström
Make the interface more symmetric by providing and using a ttm_resource_cursor_init(). v10: - Fix a stray newline (Matthew Brost) - Update kerneldoc (Matthew Brost) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241217145852.37342-2-thomas.hellstrom@linux.intel.com Signed-off-by: Christian König <christian.koenig@amd.com>
2025-01-13drm/sched: Delete unused update_job_creditsTvrtko Ursulin
No driver is using the update_job_credits() schduler vfunc so lets remove it. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@redhat.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <pstanner@redhat.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Boris Brezillon <boris.brezillon@collabora.com> Acked-by: Matt Coster <matt.coster@imgtec.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250110111301.76909-1-tvrtko.ursulin@igalia.com
2025-01-13Merge tag 'drm-xe-next-2025-01-10' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next Driver Changes: - SRIOV VF: Avoid reading inaccessible registers (Jakub, Marcin) - Introduce RPa frequency information (Rodrigo) - Remove unnecessary force wakes on SLPC code (Vinay) - Fix all typos in xe (Nitin) - Adding steering info support for GuC register lists (Jesus) - Remove unused xe_pciids.h harder, add missing PCI ID (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Z4E0tlTAA6MZ7PF2@intel.com
2025-01-11Merge tag 'cgroup-dmem-drm-v2' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next DMEM cgroup pull request This introduces a new cgroup controller to limit the device memory. Notable users would be DRM, dma-buf heaps, or v4l2. This pull request is based on the series developped by Maarten Lankhorst, Friedrich Vock, and I: https://lore.kernel.org/all/20241204134410.1161769-1-dev@lankhorst.se/ Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250110-cryptic-warm-mandrill-b71f5d@houat
2025-01-10drm/xe: remove unused xe_pciids.h harder, add missing PCI IDJani Nikula
Commit 493454445c95 ("drm/xe: switch to common PCI ID macros") removed xe_pciids.h via drm-intel-next. In the mean time, commit ae78ec0a52c4 ("drm/xe/ptl: Add another PTL PCI ID") added to xe_pciids.h via drm-xe-next. The two commits were merged in commit 8f109f287fdc ("Merge drm/drm-next into drm-xe-next"), but xe_pciids.h wasn't removed, and the PCI ID wasn't added to pciids.h. Remove xe_pciids.h, and add the PCI ID to pciids.h. Cc: Matt Atwood <matthew.s.atwood@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Fixes: 8f109f287fdc ("Merge drm/drm-next into drm-xe-next") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/r/20241125120921.1bbc1930@canb.auug.org.au Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250109105032.2585416-1-jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-01-10drm/ttm: Handle cgroup based eviction in TTMMaarten Lankhorst
cgroup resource allocation has to be handled in TTM, so -EAGAIN from cgroups can be converted into -ENOSPC, and the limitcg can be properly evicted in ttm code. When hitting a resource limit through -EAGAIN, the cgroup for which the limit is hit is also returned. This allows eviction to delete only from cgroups which are a subgroup of the current cgroup. The returned CSS is used to determine if eviction is valuable for a given resource, and allows TTM to only target specific resources to lower memory usage. Co-developed-by: Friedrich Vock <friedrich.vock@gmx.de> Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de> Co-developed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Maarten Lankhorst <dev@lankhorst.se> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20241204134410.1161769-4-dev@lankhorst.se Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-01-10Merge tag 'drm-intel-next-2025-01-07' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next Driver Changes: - Some DG2 refactor to fix DG2 bugs when operating with certain CPUs (Raag) - Use hw support for min/interim ddb allocation for async flip (Vinod) - More general code refactor to allow full display separation (Jani) - Expose dsc sink max slice count via debugfs (Swati) - Fix C10 pll programming sequence (Suraj) - Fix DG1 power gate sequence (Rodrigo) - Use preemption timeout on selftest cleanup (Janusz) - DP DSC related fixes (Ankit) - Fix HDCP compliance test (Suraj) - Clean and Optimise mtl_ddi_prepare_link_retrain (Suraj) - Adjust Added Wake Time with PKG_C_LATENCY (Animesh) - Enabling uncompressed 128b/132b UHBR SST (Jani) - Handle hdmi connector init failures, and no HDMI/DP cases (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Z31_WPbBoHkwgEA9@intel.com
2025-01-09Merge tag 'drm-misc-next-2025-01-06' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for 6.14: UAPI Changes: - Clarify drm memory stats documentation Cross-subsystem Changes: Core Changes: - sched: Documentation fixes, Driver Changes: - amdgpu: Track BO memory stats at runtime - amdxdna: Various fixes - hisilicon: New HIBMC driver - bridges: - Provide default implementation of atomic_check for HDMI bridges - it605: HDCP improvements, MCCS Support Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250106-augmented-kakapo-of-action-0cf000@houat
2025-01-08drm: add clone mode check for CRTCJessica Zhang
Add a common helper to check if the given CRTC state is in clone mode. This can be used by drivers to help detect if a CRTC is being shared by multiple encoders Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com> Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20241216-concurrent-wb-v4-1-fe220297a7f0@quicinc.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-07drm/mst: remove mgr parameter and debug logging from drm_dp_get_vc_payload_bw()Jani Nikula
The struct drm_dp_mst_topology_mgr *mgr parameter is only used for debug logging in case the passed in link rate or lane count are zero. There's no further error checking as such, and the function returns 0. There should be no case where the parameters are zero. The returned value is generally used as a divisor, and if we were hitting this, we'd be seeing division by zero. Just remove the debug logging altogether, along with the mgr parameter, so that the function can be used in non-MST contexts without the topology manager. v2: Also remove drm_dp_mst_helper_tests_init as unnecessary (Imre) Cc: Imre Deak <imre.deak@intel.com> Cc: Lyude Paul <lyude@redhat.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Acked-by: Maxime Ripard <mripard@kernel.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/72d77e7a7fe69c784e9df048b7e6f250fd7599e4.1735912293.git.jani.nikula@intel.com
2025-01-07Merge drm/drm-next into drm-intel-nextJani Nikula
Backmerge to get the DRM DP payload and ACT helpers to drm-intel-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-01-07Merge tag 'drm-intel-next-2024-12-11' of ↵Simona Vetter
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next Core Changes: - drm/print: add drm_print_hex_dump() Driver Changes: - HDCP fixes and updates for Xe3lpd and for HDCP 1.4 (Suraj) - Add dedicated lock for each sideband (Jani) - New GSC FW for ARL-H and ARL-U (Daniele) - Add support for 3 VDSC engines 12 slices (Ankit) - Sanitize MBUS joining (Ville) - Fixes in DP MST (Imre) - Stop using pixel_format_from_register_bits() to parse VBT (Ville) - Declutter CDCLK code (Ville) - PSR clean up and fixes (Jouni, Jani, Animesh) - DMC wakelock - Fixes and enablement for Xe3_LPD (Gustavo) - Demote source OUI read/write failure logging to debug (Jani) - Potential boot oops fix and some general cleanups (Ville) - Scaler code cleanups (Ville) - More conversion towards struct intel_display and general cleanups (Jani) - Limit max compressed bpp to 18 when forcing DSC (Ankit) - Start to reconcile i915's and xe's display power mgt sequences (Rodrigo) - Some correction in the DP Link Training sequence (Arun) - Avoid setting YUV420_MODE in PIPE_MISC on Xe3lpd (Ankit) - MST and DDI cleanups and refactoring (Jani) - Fixed an typo in i915_gem_gtt.c (Zhang) - Try to make DPT shrinkable again (Ville) - Try to fix CPU MMIO fails during legacy LUT updates (Ville) - Some PPS cleanups (Ville, Jani) - Use seq buf for printing rates (Jani) - Flush DMC wakelock release work at the end of runtime suspend (Gustavo) - Fix NULL pointer dereference in capture_engine (Eugene) - Fix memory leak by correcting cache object name in error handler (Jiasheng) - Small refactor in WM/DPKGC for modifying latency programmed into PKG_C_LATENCY (Suraj) - Add drm_printer based hex dumper and use it (Jani) - Move g4x code to specific g4x functions (Jani) Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch> From: Rodrigo Vivi <rodrigo.vivi@intel.com> [sima: conflict in intel_dp_mst.c due to conversion to drm_connector_dynamic_init that landed through drm-misc] Link: https://patchwork.freedesktop.org/patch/msgid/Z1n4VhatZpvT5xKs@intel.com
2025-01-07drm/nouveau: vendor in drm_encoder_slave APIDmitry Baryshkov
Nouveau driver is the only user of the drm_encoder_slave API. Rework necessary bits of drm_encoder_slave into the nouveau_i2c_encoder API and drop drm_encoder_slave.c from the DRM KMS helper. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250106-nouveau-encoder-slave-v3-2-1d37d2f2c67f@linaro.org
2025-01-07drm/nouveau: incorporate I2C TV encoder driversDmitry Baryshkov
Chrontel CH7006 and Silicon Image sil164 drivers use drm_encoder_slave interface which is being used only by the nouveau driver. It doesn't make sense to keep this interface inside the DRM subsystem. In preparation to moving this set of helpers to the nouveau driver, move the only two I2C driver that use that interface to the nouveau driver too. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250106-nouveau-encoder-slave-v3-1-1d37d2f2c67f@linaro.org
2025-01-07drm/connector: make mode_valid take a const struct drm_display_modeDmitry Baryshkov
The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge take a const struct drm_display_mode argument. Change the mode_valid callback of drm_connector to also take a const argument. Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Reviewed-by: Raphael Gallais-Pou <rgallaispou@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241214-drm-connector-mode-valid-const-v2-5-4f9498a4c822@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-07drm/connector: make mode_valid_ctx take a const struct drm_display_modeDmitry Baryshkov
The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge take a const struct drm_display_mode argument. Change the mode_valid_ctx callback of drm_connector to also take a const argument. Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241214-drm-connector-mode-valid-const-v2-4-4f9498a4c822@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-07drm/encoder_slave: make mode_valid accept const struct drm_display_modeDmitry Baryshkov
The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge accept const struct drm_display_mode argument. Change the mode_valid callback of drm_encoder_slave to also accept const argument. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241214-drm-connector-mode-valid-const-v2-1-4f9498a4c822@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-06drm/drv: Add drmm managed registration helper for dmem cgroups.Maxime Ripard
Drivers will need to register dmem regions at probe time, so let's give them a drm-managed helper. Signed-off-by: Maarten Lankhorst <dev@lankhorst.se> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20241204134410.1161769-3-dev@lankhorst.se Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-01-06drm/display: hdmi-state-helper: add drm_display_mode declarationDmitry Baryshkov
Add forward-declaration for the struct drm_display_mode, missed in the commit 47368ab437fd ("drm/display: hdmi: add generic mode_valid helper") Fixes: 47368ab437fd ("drm/display: hdmi: add generic mode_valid helper") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250104-hdmi-state-display-mode-v1-1-3c06d36e726f@linaro.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-11 13:41:22 +0000