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path: root/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h (follow)
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2022-09-13drm/amd/display: Don't adjust VRR unnecessarilyAric Cyr1-1/+0
[why] Do not need to spend time reprogramming DRR if there were no updates to the parameters. [how] Compare the current stream state to the requested one to determine if an update is required. In amdgpu_dm the timing_changed flag is set but never used so can remove it. Similarly, the stream update for VRR is done after dc_commit and should not update its adjust field until after the update is completed. The adjust field is managed by dc_stream_adjust_vmin_vmax and should not be manually updated in amdgpu_dm. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Aric Cyr <aric.cyr@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-16drm/amd/display: Add some extra kernel doc to amdgpu_dmRodrigo Siqueira1-5/+41
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-20drm/amd/display: Add tags for indicating mst progress statusWayne Lin1-0/+20
[Why & How] In order to leverage igt tool to maintain mst feature, expose new debugfs entry "mst_progress_status". In our dm flow, record down the result of each phase of mst and user can examine the mst result by checking whether each phase get completed successfully. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Alan Liu <HaoPing.Liu@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-13drm/amd/display: Ignore First MST Sideband Message Return ErrorFangzhi Zuo1-0/+8
[why] First MST sideband message returns AUX_RET_ERROR_HPD_DISCON on certain intel platform. Aux transaction considered failure if HPD unexpected pulled low. The actual aux transaction success in such case, hence do not return error. [how] Not returning error when AUX_RET_ERROR_HPD_DISCON detected on the first sideband message. v2: squash in additional DMI entries v3: squash in static fix Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-29drm/amdgpu/amdgpu_dm: fix kernel-doc markupsMauro Carvalho Chehab1-0/+7
There are 4 undocumented fields at struct amdgpu_display_manager. Add documentation for them, fixing those warnings: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:544: warning: Function parameter or member 'dmub_outbox_params' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:544: warning: Function parameter or member 'num_of_edps' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:544: warning: Function parameter or member 'disable_hpd_irq' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:544: warning: Function parameter or member 'dmub_aux_transfer_done' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:544: warning: Function parameter or member 'delayed_hpd_wq' not described in 'amdgpu_display_manager' Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-21drm/amd/display: add mst port output bw checkhersen wu1-1/+2
[Why] when connect one 4k@144hz dp to dsc mst hub, 4k@144hz mode is in valid mode list. but some mst hub port output bandwidth does not support 4k@144hz. [How] add mst port output bandwidth checks, include full_pbn, branch max throughput mps. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: hersen wu <hersenxs.wu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-21drm/amd/display: Revert "drm/amd/display: Add flag to detect dpms force off during HPD"Wayne Lin1-2/+0
This reverts commit 035f54969bb2c1a5ced52f43e4ef393e0c0f6bfa. The reverted commit was trying to fix side effect brought by commit 3c4d55c9b9be ("drm/amd/display: turn DPMS off on connector unplug") However, * This reverted commit will have mst case never call dm_set_dpms_off() which conflicts the idea of original commit 3c4d55c9b9be ("drm/amd/display: turn DPMS off on connector unplug") That's due to dm_crtc_state is always null since the input parameter aconnector is the root device (source) of mst topology. It's not an end stream sink within the mst topology. * Setting dpms off should be triggered by usermode. Besdies, it seems usermode does release relevant resource for mst & non-mst case when unplug connecotr now. Which means we no longer need both commits now: commit 3c4d55c9b9be ("drm/amd/display: turn DPMS off on connector unplug") commit 035f54969bb2 ("drm/amd/display: Add flag to detect dpms force off during HPD") Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-05-19Merge tag 'amd-drm-next-5.19-2022-05-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-nextDave Airlie1-6/+0
amd-drm-next-5.19-2022-05-18: amdgpu: - Misc code cleanups - Additional SMU 13.x enablement - Smartshift fixes - GFX11 fixes - Support for SMU 13.0.4 - SMU mutex fix - Suspend/resume fix amdkfd: - static checker fix - Doorbell/MMIO resource handling fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220518205621.5741-1-alexander.deucher@amd.com
2022-05-10drm/amd/display: remove redundant CONFIG_DRM_AMD_DC_DCN in amdgpu_dmAlex Hung1-6/+0
[Why & How] CONFIG_DRM_AMD_DC_DCN is used by pass the compilation failures, but DC code should be OS-agnostic. This patch fixes it by removing unnecessasry CONFIG_DRM_AMD_DC_DCN in amdgpu_dm directory. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Stylon Wang <stylon.wang@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-25drm: Rename dp/ to display/Thomas Zimmermann1-1/+1
Rename dp/ to display/ to account for additional display-related helpers, such as HDMI. Update all related include statements. No functional changes. Various drivers, such as i915 and amdgpu, use similar naming scheme by putting code for video-output standards into a local display/ directory. The new directory's name is aligned with this convention. v2: * update commit message (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-3-tzimmermann@suse.de
2022-04-06amd/display: set backlight only if requiredShirish S1-0/+6
[Why] comparing pwm bl values (coverted) with user brightness(converted) levels in commit_tail leads to continuous setting of backlight via dmub as they don't to match. This leads overdrive in queuing of commands to DMCU that sometimes lead to depending on load on DMCU fw: "[drm:dc_dmub_srv_wait_idle] *ERROR* Error waiting for DMUB idle: status=3" [How] Store last successfully set backlight value and compare with it instead of pwm reads which is not what we should compare with. Signed-off-by: Shirish S <shirish.s@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2022-03-31amd/display: set backlight only if requiredShirish S1-0/+6
[Why] comparing pwm bl values (coverted) with user brightness(converted) levels in commit_tail leads to continuous setting of backlight via dmub as they don't to match. This leads overdrive in queuing of commands to DMCU that sometimes lead to depending on load on DMCU fw: "[drm:dc_dmub_srv_wait_idle] *ERROR* Error waiting for DMUB idle: status=3" [How] Store last successfully set backlight value and compare with it instead of pwm reads which is not what we should compare with. Signed-off-by: Shirish S <shirish.s@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-02-16drm/amd/display: Add dsc pre-validation in atomic checkRoman Li1-0/+12
[Why] The previous change: "Add affected crtcs to atomic state for dsc mst unplug" forces modeset on all added crctc regardless whether timing changed or not. Per our implementation of dsc we need modeset only if timing changed. Otherwise dsc can be programmed incorrectly leading to dsc engine hang. [How] During atomic_check pre-compute dsc params. Only set mode_changed if timing is changed. Reviewed-by: Hersen Wu <hersenwu@amd.com> Acked-by: Jasdeep Dhillon <jdhillon@amd.com> Signed-off-by: Roman Li <Roman.Li@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-02-14Merge tag 'amd-drm-next-5.18-2022-02-11-1' of https://gitlab.freedesktop.org/agd5f/linux into drm-nextDave Airlie1-0/+1
amd-drm-next-5.18-2022-02-11-1: amdgpu: - Clean up of power management code - Enable freesync video mode by default - Clean up of RAS code - Improve VRAM access for debug using SDMA - Coding style cleanups - SR-IOV fixes - More display FP reorg - TLB flush fixes for Arcuturus, Vega20 - Misc display fixes - Rework special register access methods for SR-IOV - DP2 fixes - DP tunneling fixes - DSC fixes - More IP discovery cleanups - Misc RAS fixes - Enable both SMU i2c buses where applicable - s2idle improvements - DPCS header cleanup - Add new CAP firmware support for SR-IOV amdkfd: - Misc cleanups - SVM fixes - CRIU support - Clean up MQD manager UAPI: - Add interface to amdgpu CTX ioctl to request a stable power state for profiling https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/207 - Add amdkfd support for CRIU https://github.com/checkpoint-restore/criu/pull/1709 - Remove old unused amdkfd debugger interface Was only implemented for Kaveri and was only ever used by an old HSA tool that was never open sourced radeon: - Fix error handling in radeon_driver_open_kms - UVD suspend fix - Misc fixes From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220211220706.5803-1-alexander.deucher@amd.com
2022-02-01Merge tag 'drm-misc-next-2022-01-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-nextDave Airlie1-1/+1
[airlied: add two missing Kconfig] drm-misc-next for v5.18: UAPI Changes: - Fix invalid IN_FORMATS blob when plane->format_mod_supported is NULL. Cross-subsystem Changes: - Assorted dt bindings updates. - Fix vga16fb vga checking on x86. - Fix extra semicolon in rwsem.h's _down_write_nest_lock. - Assorted small fixes to agp and fbdev drivers. - Fix oops in creating a udmabuf with 0 pages. - Hot-unplug firmware fb devices on forced removal - Reqquest memory region in simplefb and simpledrm, and don't make the ioresource as busy. Core Changes: - Mock a drm_plane in drm-plane-helper selftest. - Assorted bug fixes to device logging, dbi. - Use DP helper for sink count in mst. - Assorted documentation fixes. - Assorted small fixes. - Move DP headers to drm/dp, and add a drm dp helper module. - Move the buddy allocator from i915 to common drm. - Add simple pci and platform module init macros to remove a lot of boilerplate from some drivers. - Support microsoft extension for HMDs and specialized monitors. - Improve edid parser's deep color handling. - Add type 7 timing support to edid parser. - Add a weak backpointer to the ttm_bo from ttm_resource - Add 3 eDP panels. Driver Changes: - Add support for HDMI and JZ4780 to ingenic. - Add support for higher DP/eDP bitrates to nouveau. - Assorted driver fixes to tilcdc, vmwgfx, sn65dsi83, meson, stm, panfrost, v3d, gma500, vc4, virtio, mgag200, ast, radeon, amdgpu, nouveau, various bridge drivers. - Convert and revert exynos dsi support to bridge driver. - Add vcc supply regulator support for sn65dsi83. - More conversion of bridge/chipone-icn6211 to atomic. - Remove conflicting fb's from stm, and add support for new hw version. - Add device link in parade-ps8640 to fix suspend/resume. - Update Boe-tv110c9m init sequence. - Add wide screen support to AST2600. - Fix omapdrm implicit dma_buf fencing. - Add support for multiple overlay planes to vkms. - Convert bridge/anx7625 to atomic, add HDCP support, add eld support for audio, and fix HPD. - Add driver for ChromeOS privacy screen. - Handover display from firmware to vc4 more gracefully, and support nomodeset. - Add flexible and ycbcr pixel formats to stm/ltdc. - Convert exynos mipi dsi to atomic. - Add initial dual core group GPUs support to panfrost. - No longer add exclusive fence in amdgpu as shared fence. - Add CSC and full range supoprt to vc4. - Shutdown the display on system shutdown and unbind. - Add Multi-Inno Technology MI0700S4T-6 simple panel. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/456a23c6-7324-7543-0c45-751f30ef83f7@linux.intel.com
2022-01-25drm/amd/display: Retrieve MST Downstream Port StatusFangzhi Zuo1-0/+1
Determine if DFP present and the type of downstream device based on dsc_aux Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-01-17drm/dp: Move public DisplayPort headers into dp/Thomas Zimmermann1-1/+1
Move all public DisplayPort headers into dp/ and update users. No functional changes. v3: * rebased onto latest drm-tip Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220114114535.29157-5-tzimmermann@suse.de
2022-01-07drm/amd/display: introduce mpo detection flagsMikita Lipski1-0/+2
[why] We want to know if new crtc state is enabling MPO configuration before enabling it. [how] Detect if both primary and overlay planes are enabled on the same CRTC. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14amdgpu: fix some kernel-doc markupYann Dirson1-2/+2
Those are not today pulled by the sphinx doc, but better be ready. Signed-off-by: Yann Dirson <ydirson@free.fr> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-11-22drm/amd/display: enable seamless boot for DCN301Zhan Liu1-0/+3
[Why] DCN301 is capable of running seamless boot if keep_stolen_vga_memory is not set. [How] Add a helper to check whether an ASIC can support seamless boot and set it based on base driver flags. Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Zhan Liu <Zhan.Liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-10-06drm/amd/display: Support for SET_CONFIG processing with DMUBJude Shih1-2/+10
[Why] To process SET_CONFIG transactions with DMUB using inbox1 and outbox1 mail boxes. [How] 1) DMUB posts SET_CONFIG reply as an Outbox1 message of type DMUB_OUT_CMD__SET_CONFIG_REPLY. 2) The dmub async to sync mechanism for AUX is modified to accommodate SET_CONFIG commands for both command issue and reply code paths. Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Wayne Lin <Wayne.Lin@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Jude Shih <shenshih@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-14drm/amd/display: Add flag to detect dpms force off during HPDAurabindo Pillai1-0/+2
[Why] When a connector is unplugged, dpms is forced off so that some connector allocations are cleared off. This is done outside the commit sequence from the userspace. This causes HUBP blank. Due to the blank hubp, a non blocking commit which queues flip will encounter a timeout waiting for the flip_done because prior to writing the surface flip address, hubp was in blank. [How] Add a marker to DM's crtc state and use this field to indicate whether dpms was forced off during an HPD. Check for this marker before queuing the flip. Reviewed-by: Anson Jacob <Anson.Jacob@amd.com> Acked-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-14drm/amd/display: Fork thread to offload work of hpd_rx_irqWayne Lin1-1/+48
[Why] Currently, we will try to get dm.dc_lock in handle_hpd_rx_irq() when link lost happened, which is risky and could cause deadlock. e.g. If we are under procedure to enable MST streams and then monitor happens to toggle short hpd to notify link lost, then handle_hpd_rx_irq() will get blocked due to stream enabling flow has dc_lock. However, under MST, enabling streams involves communication with remote sinks which need to use handle_hpd_rx_irq() to handle sideband messages. Thus, we have deadlock here. [How] Target is to have handle_hpd_rx_irq() finished as soon as possilble. Hence we can react to interrupt quickly. Besides, we should avoid to grabe dm.dc_lock within handle_hpd_rx_irq() to avoid deadlock situation. Firstly, revert patches which introduced to use dm.dc_lock in handle_hpd_rx_irq(): * commit ("drm/amd/display: NULL pointer error during ") * commit ("drm/amd/display: Only one display lights up while using MST") * commit ("drm/amd/display: take dc_lock in short pulse handler only") Instead, create work to handle irq events which needs dm.dc_lock. Besides: * Create struct hpd_rx_irq_offload_work_queue for each link to handle its short hpd events * Avoid to handle link lost/ automated test if the link is disconnected * Defer dc_lock needed works in dc_link_handle_hpd_rx_irq(). This function should just handle simple stuff for us (e.g. DPCD R/W). However, deferred works should still be handled by the order that dc_link_handle_hpd_rx_irq() used to be. * Change function name dm_handle_hpd_rx_irq() to dm_handle_mst_sideband_msg() to be more specific Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-01drm/amd/display: Support for DMUB HPD interrupt handlingJude Shih1-0/+40
[WHY] To add support for HPD interrupt handling from DMUB. HPD interrupt could be triggered from outbox1 from DMUB [HOW] 1) Use queue_work to handle hpd task from outbox1 2) Add handle_hpd_irq_helper to share interrupt handling code between legacy and DMUB HPD from outbox1 3) Added DMUB HPD handling in dmub_srv_stat_get_notification(). HPD handling callback function and wake up the DMUB thread. Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Jude Shih <shenshih@amd.com> Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-08-16drm/amd/display: Use vblank control events for PSR enable/disableNicholas Kazlauskas1-0/+2
[Why] PSR can disable the HUBP along with the OTG when PSR is active. We'll hit a pageflip timeout when the OTG is disable because we're no longer updating the CRTC vblank counter and the pflip high IRQ will not fire on the flip. In order to flip the page flip timeout occur we should modify the enter/exit conditions to match DRM requirements. [How] Use our deferred handlers for DRM vblank control to notify DMCU(B) when it can enable or disable PSR based on whether vblank is disabled or enabled respectively. We'll need to pass along the stream with the notification now because we want to access the CRTC state while the CRTC is locked to get the stream state prior to the commit. Retain a reference to the stream so it remains safe to continue to access and release that reference once we're done with it. Enable/disable logic follows what we were previously doing in update_planes. The workqueue has to be flushed before programming streams or planes to ensure that we exit out of idle optimizations and PSR before these events occur if necessary. To keep the skip count logic the same to avoid FBCON PSR enablement requires copying the allow condition onto the DM IRQ parameters - a field that we can actually access from the worker. Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-08-16drm/amd/display: Fix multi-display support for idle opt workqueueNicholas Kazlauskas1-10/+11
[Why] The current implementation for idle optimization support only has a single work item that gets reshuffled into the system workqueue whenever we receive an enable or disable event. We can have mismatched events if the work hasn't been processed or if we're getting control events from multiple displays at once. This fixes this issue and also makes the implementation usable for PSR control - which will be addressed in another patch. [How] We need to be able to flush remaining work out on demand for driver stop and psr disable so create a driver specific workqueue instead of using the system one. The workqueue will be single threaded to guarantee the ordering of enable/disable events. Refactor the queue to allocate the control work and deallocate it after processing it. Pass the acrtc directly to make it easier to handle psr enable/disable in a later patch. Rename things to indicate that it's not just MALL specific. Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-28drm/amdgpu/display: add support for multiple backlightsAlex Deucher1-2/+2
On platforms that support multiple backlights, register each one separately. This lets us manage them independently rather than registering a single backlight and applying the same settings to both. v2: fix typo: Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-21drm/amd/display: Delay PSR entryRoman Li1-0/+2
[Why] After panel power up, if PSR entry attempted too early, PSR state may get stuck in transition. This could happen if the panel is not ready to respond to the SDP PSR entry message. In this case dmub f/w is unable to abort PSR entry since abortion is not permitted after the SDP has been sent. [How] Skip 5 pageflips before PSR enable. Signed-off-by: Roman Li <roman.li@amd.com> Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Bindu Ramamurthy <bindu.r@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-11drm/amd/display: Verify Gamma & Degamma LUT sizes in amdgpu_dm_atomic_checkMark Yacoub1-0/+1
For each CRTC state, check the size of Gamma and Degamma LUTs so unexpected and larger sizes wouldn't slip through. TEST: IGT:kms_color::pipe-invalid-gamma-lut-sizes v2: fix assignments in if clauses, Mark's email. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Mark Yacoub <markyacoub@chromium.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-08drm/amd/display: Add debugfs entry for dsc passthroughFangzhi Zuo1-0/+1
[Why & How] Add debugfs entry to force dsc decoding at PCON when DSC capable external RX is connected. In such case, it is free to test DSC decoding at external RX or at PCON. Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Stylon Wang <stylon.wang@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-19drm/amdgpu/display: add helper functions to get/set backlight (v2)Alex Deucher1-0/+7
And cache the value. These can be used by the backlight callbacks and modesetting functions. v2: rebase on latest backlight changes. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1337 Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-19drm/amdgpu/display: fix dal_allocation documentationAlex Deucher1-0/+4
Add missing structure elements. Fixes: 0dd79532340568 ("drm/amdgpu/display: Implement functions to let DC allocate GPU memory") Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-10drm/amd/display: Support for DMUB AUXJude Shih1-0/+11
[WHY] To process AUX transactions with DMUB using inbox1 and outbox1 mail boxes. [How] 1) Added inbox1 command DMUB_CMD__DP_AUX_ACCESS to issue AUX commands to DMUB in dc_process_dmub_aux_transfer_async(). DMUB processes AUX cmd with DCN and sends reply back in an outbox1 message triggering an outbox1 interrupt to driver. 2) In existing driver implementation, AUX commands are processed synchronously by configuring DCN reg. But in DMUB AUX, driver sends an inbox1 message and waits for a conditional variable (CV) which will be signaled by outbox1 ISR. 3) DM will retrieve Outbox1 message and send back reply to upper layer and complete the AUX command Signed-off-by: Jude Shih <shenshih@amd.com> Reviewed-by: Hanghong Ma <Hanghong.Ma@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-10drm/amd/display: multi-eDP backlight supportMikita Lipski1-1/+5
[why] Currently the assumption is that we are using a single eDP connector so there will only be one backlight object. Need changes to allow brightness update and reading for multiple eDP connectors. [how] - register a single device - turn backlight link from a pointer to an array of pointers - update brightness of all eDP links at the same time when request is registered - read brightness level only of the primary eDP panel - turn current_backlight_pwm and targer_backlight_pwm debugfs enteries into per connector enteries. Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Wayne Lin <waynelin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-10drm/amdgpu/display: add documentation for dmcub_trace_event_enAlex Deucher1-0/+1
Was missing when this structure was updated. Fixes: 46a83eba276cd3 ("drm/amd/display: Add debugfs to control DMUB trace buffer events") Reviewed-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-15drm/amd/display: Add debugfs to repress HPD and HPR_RX IRQsHarry Wentland1-1/+2
[Why] For debugging reasons it can be beneficial to disable any hotplug and DP shortpulse interrupt handling. [How] Expose a debugfs to set a flag to bypass HPD IRQ handling and skip IRQ handling if flag is set. Signed-off-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Bindu Ramamurthy <bindur12@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Tweak the kernel doc for crc_rd_wrkWayne Lin1-1/+1
[Why] Commit 1c85f3db778ffbeba91d71e9d6c8aa299f9b4efd ("drm/amd/display: Add kernel doc to crc_rd_wrk field") adds kernel doc for crc_rd_wrk field in amdgpu_dm.h but it's incorrectly formatted. Make htmldocs warns: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:398: warning: Incorrect use of kernel-doc format: * @crc_rd_wrk [How] Tweak the kernel doc for crc_rd_wrk. Fixes: 1c85f3db778ffb ("drm/amd/display: Add kernel doc to crc_rd_wrk field") Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Add refresh rate traceRodrigo Siqueira1-0/+1
When we have to debug VRR issues, we usually want to know the current refresh rate; for this reason, it is handy to have a way to check in real-time the refresh rate value. This commit introduces a kernel trace that can provide such information. Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Log DMCUB trace buffer eventsLeo (Hanghong) Ma1-0/+9
[Why] We want to log DMCUB trace buffer events as Linux kernel traces. [How] Register an IRQ handler for DMCUB outbox0 interrupt in amdgpu_dm, and log the messages in the DMCUB tracebuffer to a new DMCUB TRACE_EVENT as soon as we receive the outbox0 IRQ from DMCUB FW. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Add kernel doc to crc_rd_wrk fieldWayne Lin1-0/+5
[Why] Receive warning message below: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:380: warning: Function parameter or member 'crc_rd_wrk' not described in 'amdgpu_display_manager' [How] Add documentation for crc_rd_wrk. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amdgpu/display: re-enable freesync video patchesNikola Cornij1-0/+2
Since this is a "revert of a revert", the end effect is that freesync video is back to its original state, the way it was before the first revert. Signed-off-by: Nikola Cornij <nikola.cornij@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amd/display: Add debugfs to control DMUB trace buffer eventsLeo (Hanghong) Ma1-0/+1
[Why] We want to have a debugfs interface to enable or disable DMCUB trace buffer events. [How] Add debugfs interface to enable or disable trace buffer events. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amdgpu/display: Implement functions to let DC allocate GPU memoryZhan Liu1-0/+16
[Why] DC needs to communicate with PM FW through GPU memory. In order to do so we need to be able to allocate memory from within DC. [How] Call amdgpu_bo_create_kernel to allocate GPU memory and use a list in amdgpu_display_manager to track our allocations so we can clean them up later. Signed-off-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Zhan Liu <zhan.liu@amd.com> Reviewed-by: Charlene Liu <charlene.liu@amd.com> Acked-by: Zhan Liu <zhan.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amd/display: Fix warningQingqing Zhuo1-2/+10
[Why] - Wrong scope for ifdef - Missing struct description [How] Move ifdef and add comment Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23Revert freesync video patches temporarilyAurabindo Pillai1-2/+0
This temporarily reverts freesync video patches since it causes regression with eDP displays. This patch is a squashed revert of the following patches: 6f59f229f8ed ("drm/amd/display: Skip modeset for front porch change") d10cd527f5e5 ("drm/amd/display: Add freesync video modes based on preferred modes") 0eb1af2e8205 ("drm/amd/display: Add module parameter for freesync video mode") Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Anson Jacob <anson.jacob@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-05drm/amd/display: Use PSP TA to read out crcWayne Lin1-0/+3
[Why & How] To read back crc by sending command READ_ROI_CRC to PSP TA to ask it to read out crc of crc window. Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-05drm/amd/display: Support crc on specific regionWayne Lin1-0/+9
[Why] To support feature that calculates CRTC CRC value on specific region (crc window). [How] 1. Use debugfs to specify crtc crc window 2. Use vline0 IRQ to write crtc crc window Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-05drm/amd/display: Fix crc_src is not thread safeWayne Lin1-1/+0
[Why & How] Find out that referring to crtc_state->crc_src is not thread safe. Move crc_src from dm_crtc_state to dm_irq_params to fix this. Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-02drm/amdgpu/display: buffer INTERRUPT_LOW_IRQ_CONTEXT interrupt workXiaogang Chen1-13/+1
amdgpu DM handles INTERRUPT_LOW_IRQ_CONTEXT interrupt(hpd, hpd_rx) by using work queue and uses single work_struct. If new interrupt is recevied before the previous handler finished, new interrupts(same type) will be discarded and driver just sends "amdgpu_dm_irq_schedule_work FAILED" message out. If some important hpd, hpd_rx related interrupts are missed by driver the hot (un)plug devices may cause system hang or instability, such as issues with system resume from S3 sleep with mst device connected. This patch dynamically allocates new amdgpu_dm_irq_handler_data for new interrupts if previous INTERRUPT_LOW_IRQ_CONTEXT interrupt work has not been handled. So the new interrupt works can be queued to the same workqueue_struct, instead of discard the new interrupts. All allocated amdgpu_dm_irq_handler_data are put into a single linked list and will be reused after. Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-26drm/amd/display: Add freesync video modes based on preferred modesAurabindo Pillai1-0/+2
[Why] While possible for userspace to create and add custom mode based off the optimized mode for the connected display which differs only in front porch timing, this patch set adds a list of common video modes in advance. The list of common video refresh rates is small, well known and the optimized mode has specific requirements to be able to enable HW frame doubling and tripling so it makes most sense to create the modes that video players will need in advance. The optimized mode matches the preferred mode resolution but has the highest refresh rate available to enable the largest front porch extension. [How] Find the optimized mode and store it on the connector so we can check it later during our optimized modeset. Prepopulate the mode list with a list of common video mades based on the optimized mode (but with a longer front porch) if the panel doesn't support a variant of the mode natively. Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Shashank Sharma <shashank.sharma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>