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path: root/drivers/gpu/drm/drm_atomic_state_helper.c
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2020-02-15drm/atomic-helper: fix kerneldocDaniel Vetter
Just a tiny copypasta mistake. Fixes: 751465913f04 ("drm/bridge: Add a drm_bridge_state object") Cc: Boris Brezillon <boris.brezillon@collabora.com> Acked-by: Boris Brezillon <boris.brezillon@collabora.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200214081340.2772853-1-daniel.vetter@ffwll.ch
2020-01-31drm/bridge: Add a drm_bridge_state objectBoris Brezillon
One of the last remaining objects to not have its atomic state. This is being motivated by our attempt to support runtime bus-format negotiation between elements of the bridge chain. This patch just paves the road for such a feature by adding a new drm_bridge_state object inheriting from drm_private_obj so we can re-use some of the existing state initialization/tracking logic. v10: * Add changelog to the commit message v9: * Clarify the fact that the bridge->atomic_reset() and {connector,plane,crtc,...}->reset() semantics are different * Move the drm_atomic_private_obj_init() call back to drm_bridge_attach() * Check the presence of ->atomic_duplicate_state instead of ->atomic_reset in drm_atomic_add_encoder_bridges() * Fix copy&paste errors in the atomic bridge state helpers doc * Add A-b/R-b tags v8: * Move bridge state helpers out of the CONFIG_DEBUGFS section v7: * Move helpers, struct-defs, ... to atomic helper files to avoid the drm -> drm_kms_helper -> drm circular dep * Stop providing default implementation for atomic state reset, duplicate and destroy hooks (has to do with the helper/core split) * Drop all R-b/T-b as helpers have now be moved to other places v6: * Made helpers private, removed doc and moved them to satisfy dependencies * Renamed helpers to _default_ v5: * Re-introduced the helpers from v4 v4: * Fix the doc * Kill default helpers (inlined) * Fix drm_atomic_get_bridge_state() to check for an ERR_PTR() * Add Neil's R-b v3: * No changes v2: * Use drm_for_each_bridge_in_chain() * Rename helpers to be more consistent with the rest of the DRM API * Improve/fix the doc Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200128135514.108171-2-boris.brezillon@collabora.com
2019-12-18drm: Add __drm_atomic_helper_crtc_state_reset() & co.Ville Syrjälä
Annoyingly __drm_atomic_helper_crtc_reset() does two totally separate things: a) reset the state to defaults values b) assign the crtc->state pointer I just want a) without the b) so let's split out part a) into __drm_atomic_helper_crtc_state_reset(). And of course we'll do the same thing for planes and connectors. v2: Fix conn__state vs. conn_state typo (Lucas) Make code and kerneldoc match for __drm_atomic_helper_plane_state_reset() Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191107142417.11107-1-ville.syrjala@linux.intel.com Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-09-18drm/atomic: Rename crtc_state->pageflip_flags to async_flipDaniel Vetter
It's the only flag anyone actually cares about. Plus if we're unlucky, the atomic ioctl might need a different flag for async flips. So better to abstract this away from the uapi a bit. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Michel Dänzer <michel@daenzer.net> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Adam Jackson <ajax@redhat.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: David Francis <David.Francis@amd.com> Cc: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Ilia Mirkin <imirkin@alum.mit.edu> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190903190642.32588-3-daniel.vetter@ffwll.ch
2019-06-19drm/atomic: Add a function to reset connector TV propertiesMaxime Ripard
During the connector reset, if that connector has a TV property, it needs to be reset to the value provided on the command line. Provide a helper to do that. Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/84a7b657f09303a2850e1cc79e68f623547f3fdd.1560783090.git-series.maxime.ripard@bootlin.com
2019-06-13drm: Add helpers to kick off self refresh mode in driversSean Paul
This patch adds a new drm helper library to help drivers implement self refresh. Drivers choosing to use it will register crtcs and will receive callbacks when it's time to enter or exit self refresh mode. In its current form, it has a timer which will trigger after a driver-specified amount of inactivity. When the timer triggers, the helpers will submit a new atomic commit to shut the refreshing pipe off. On the next atomic commit, the drm core will revert the self refresh state and bring everything back up to be actively driven. From the driver's perspective, this works like a regular disable/enable cycle. The driver need only check the 'self_refresh_active' state in crtc_state. It should initiate self refresh mode on the panel and enter an off or low-power state. Changes in v2: - s/psr/self_refresh/ (Daniel) - integrated the psr exit into the commit that wakes it up (Jose/Daniel) - made the psr state per-crtc (Jose/Daniel) Changes in v3: - Remove the self_refresh_(active|changed) from connector state (Daniel) - Simplify loop in drm_self_refresh_helper_alter_state (Daniel) - Improve self_refresh_aware comment (Daniel) - s/self_refresh_state/self_refresh_data/ (Daniel) Changes in v4: - Move docbook location below panel (Daniel) - Improve docbook with references and more detailed explanation (Daniel) - Instead of register/unregister, use init/cleanup (Daniel) Changes in v5: - Resolved conflict in drm_atomic_helper.c #include block - Resolved conflict in rst with HDCP helper docs Changes in v6: - Fix include ordering, clean up forward declarations (Sam) Link to v1: https://patchwork.freedesktop.org/patch/msgid/20190228210939.83386-2-sean@poorly.run Link to v2: https://patchwork.freedesktop.org/patch/msgid/20190326204509.96515-1-sean@poorly.run Link to v3: https://patchwork.freedesktop.org/patch/msgid/20190502194956.218441-6-sean@poorly.run Link to v4: https://patchwork.freedesktop.org/patch/msgid/20190508160920.144739-6-sean@poorly.run Link to v5: https://patchwork.freedesktop.org/patch/msgid/20190611160844.257498-6-sean@poorly.run Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Jose Souza <jose.souza@intel.com> Cc: Zain Wang <wzz@rock-chips.com> Cc: Tomasz Figa <tfiga@chromium.org> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Sam Ravnborg <sam@ravnborg.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190612145026.191846-1-sean@poorly.run
2019-05-27drm: drop use of drmP.h in drm/*Sam Ravnborg
The use of the drmP.h header file is deprecated. Remove use from all files in drm/* so people do not look there and follow a bad example. Build tested allyesconfig,allmodconfig on x86, arm etc. Including alpha that is as always more challenging than the rest. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-8-sam@ravnborg.org
2019-05-22drm: Add reference counting on HDR metadata blobJonas Karlman
This adds reference count for HDR metadata blob, handled as part of duplicate and destroy connector state functions. v2: Removed the hdr_metadata_changed initialization as the variable is dropped and not required. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1558015817-12025-3-git-send-email-uma.shankar@intel.com
2019-04-24drm/docs: Fix typo in __drm_atomic_helper_connector_resetMaarten Lankhorst
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190301125627.7285-4-maarten.lankhorst@linux.intel.com
2019-04-24drm/atomic: Create __drm_atomic_helper_crtc_reset() for subclassing crtc_state.Maarten Lankhorst
We already have __drm_atomic_helper_connector_reset() and __drm_atomic_helper_plane_reset(), extend this to crtc as well. This will allow us to set default values in the crtc_state, without having to do it in each driver separately. Of all drivers that need conversion, only nouveau is done in this commit, because it wrote its own __drm_atomic_helper_crtc_reset(), clashing with the drm core. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190301125627.7285-3-maarten.lankhorst@linux.intel.com
2019-03-18drm: writeback: Fix leak of writeback jobLaurent Pinchart
Writeback jobs are allocated when the WRITEBACK_FB_ID is set, and deleted when the jobs complete. This results in both a memory leak of the job and a leak of the framebuffer if the atomic commit returns before the job is queued for processing, for instance if the atomic check fails or if the commit runs in test-only mode. Fix this by implementing the drm_writeback_cleanup_job() function and calling it from __drm_atomic_helper_connector_destroy_state(). As writeback jobs are removed from the state when they're queued for processing, any job left in the state when the state gets destroyed needs to be cleaned up. The existing declaration of the drm_writeback_cleanup_job() function without an implementation hints that this problem was considered, but never addressed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Brian Starkey <brian.starkey@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com>
2018-12-24drm: Put damage blob when destroy plane stateDeepak Rawat
Somehow the code to put the damage blob on destroy plane state and set the blob to NULL when duplicate plane state was not merged. May be because the files are refactored since the patch was written. With this fix add those. Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Deepak Rawat <drawat@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Fixes: d3b21767821e ("drm: Add a new plane property to send damage during plane update") Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20181221193559.4346-1-drawat@vmware.com
2018-11-30drm: Fix up drm_atomic_state_helper.[hc] extractionDaniel Vetter
I've misplaced two functions by accident: - drm_atomic_helper_duplicate_state is really part of the resume/suspend/shutdown device-wide helpers. - drm_atomic_helper_legacy_gamma_set is part of the legacy ioctl compat helpers. Move them both back. Fixes: 9ef8a9dc4b21 ("drm: Extract drm_atomic_state_helper.[hc]") Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Sean Paul <sean@poorly.run> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181128100728.4674-1-daniel.vetter@ffwll.ch
2018-10-05drm: Extract drm_atomic_state_helper.[hc]Daniel Vetter
We already have a separate overview doc for this, makes sense to untangle it from the overall atomic helpers. v2: Rebase v3: Rebase more. Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181004202446.22905-4-daniel.vetter@ffwll.ch