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path: root/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c (follow)
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2022-09-19drm/amd/display: Refactor edp panel power sequencer(PPS) codesIan Chen1-2/+11
[Why & How] Move extra panel power sequencer settings into panel_cofig struct. Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Ian Chen <ian.chen@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-12Merge tag 'amd-drm-next-6.1-2022-09-08' of https://gitlab.freedesktop.org/agd5f/linux into drm-nextDave Airlie1-4/+60
amd-drm-next-6.1-2022-09-08: amdgpu: - Mode2 reset for RDNA2 - Lots of new DC documentation - Add documentation about different asic families - DSC improvements - Aldebaran fixes - Misc spelling and grammar fixes - GFXOFF stats support for vangogh - DC frame size fixes - NBIO 7.7 updates - DCN 3.2 updates - DCN 3.1.4 Updates - SMU 13.x updates - Misc bug fixes - Rework DC register offset handling - GC 11.x updates - PSP 13.x updates - SDMA 6.x updates - GMC 11.x updates - SR-IOV updates - PSP fixes for TA unloading - DSC passthrough support - Misc code cleanups amdkfd: - ISA fixes for some GC 10.3 IPs - Misc code cleanups radeon: - Delayed work flush fix - Use time_after for some jiffies calculations drm: - DSC passthrough aux support Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220908155202.57862-1-alexander.deucher@amd.com
2022-09-11Merge tag 'drm-misc-next-2022-09-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-nextDave Airlie1-73/+35
drm-misc-next for v6.1-rc1: [airlied - fix sun4i_tv build] UAPI Changes: - Hide unregistered connectors from GETCONNECTOR ioctl. - drm/virtio no longer advertises LINEAR modifier, as it doesn't work. - Cross-subsystem Changes: - Fix GPF in udmabuf failure path. Core Changes: - Rework TTM placement to use intersect/compatible functions. - Drop legacy DP-MST support. - More DP-MST related fixes, and move all state into atomic. - Make DRM_MIPI_DBI select DRM_KMS_HELPER. - Add audio_infoframe packing for DP. - Add logging when some atomic check functions fail. - Assorted documentation updates and fixes. Driver Changes: - Assorted cleanups and fixes in msm, lcdif, nouveau, virtio, panel/ilitek, bridge/icn6211, tve200, gma500, bridge/*, panfrost, via, bochs, qxl, sun4i. - Add add AUO B133UAN02.1, IVO M133NW4J-R3, Innolux N120ACA-EA1 eDP panels. - Improve DP-MST modeset state handling in amdgpu, nouveau, i915. - Drop DP-MST from radeon driver, it was broken and only user of legacy DP-MST. - Handle unplugging better in vc4. - Simplify drm cmdparser tests. - Add DP support to ti-sn65dsi86. - Add MT8195 DP support to mediatek. - Support RGB565, XRGB64, and ARGB64 formats in vkms. - Convert sun4i tv support to atomic. - Refactor vc4/vec TV Modesetting, and fix timings. - Use atomic helpers instead of simple display helpers in ssd130x. Maintainer changes: - Add Douglas Anderson as reviewer for panel-edp. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/a489485b-3ebc-c734-0f80-aed963d89efe@linux.intel.com
2022-08-29drm/amd/display: Refactor edp dsc codes.Ian Chen1-0/+19
Refactor edp dsc codes. We split out edp dsc config from "global" to "per-panel" config settings. Reviewed-by: Mike Hsieh <mike.hsieh@amd.com> Acked-by: Brian Chang <Brian.Chang@amd.com> Signed-off-by: Ian Chen <ian.chen@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-23drm/display/dp_mst: Move all payload info into the atomic stateLyude Paul1-71/+33
Now that we've finally gotten rid of the non-atomic MST users leftover in the kernel, we can finally get rid of all of the legacy payload code we have and move as much as possible into the MST atomic state structs. The main purpose of this is to make the MST code a lot less confusing to work on, as there's a lot of duplicated logic that doesn't really need to be here. As well, this should make introducing features like fallback link retraining and DSC support far easier. Since the old payload code was pretty gnarly and there's a Lot of changes here, I expect this might be a bit difficult to review. So to make things as easy as possible for reviewers, I'll sum up how both the old and new code worked here (it took me a while to figure this out too!). The old MST code basically worked by maintaining two different payload tables - proposed_vcpis, and payloads. proposed_vcpis would hold the modified payload we wanted to push to the topology, while payloads held the payload table that was currently programmed in hardware. Modifications to proposed_vcpis would be handled through drm_dp_allocate_vcpi(), drm_dp_mst_deallocate_vcpi(), and drm_dp_mst_reset_vcpi_slots(). Then, they would be pushed via drm_dp_mst_update_payload_step1() and drm_dp_mst_update_payload_step2(). Furthermore, it's important to note how adding and removing VC payloads actually worked with drm_dp_mst_update_payload_step1(). When a VC payload is removed from the VC table, all VC payloads which come after the removed VC payload's slots must have their time slots shifted towards the start of the table. The old code handles this by looping through the entire payload table and recomputing the start slot for every payload in the topology from scratch. While very much overkill, this ends up doing the right thing because we always order the VCPIs for payloads from first to last starting timeslot. It's important to also note that drm_dp_mst_update_payload_step2() isn't actually limited to updating a single payload - the driver can use it to queue up multiple payload changes so that as many of them can be sent as possible before waiting for the ACT. This is -technically- not against spec, but as Wayne Lin has pointed out it's not consistently implemented correctly in hubs - so it might as well be. drm_dp_mst_update_payload_step2() is pretty self explanatory and basically the same between the old and new code, save for the fact we don't have a second step for deleting payloads anymore -and thus rename it to drm_dp_mst_add_payload_step2(). The new payload code stores all of the current payload info within the MST atomic state and computes as much of the state as possible ahead of time. This has the one exception of the starting timeslots for payloads, which can't be determined at atomic check time since the starting time slots will vary depending on what order CRTCs are enabled in the atomic state - which varies from driver to driver. These are still stored in the atomic MST state, but are only copied from the old MST state during atomic commit time. Likewise, this is when new start slots are determined. Adding/removing payloads now works much more closely to how things are described in the spec. When we delete a payload, we loop through the current list of payloads and update the start slots for any payloads whose time slots came after the payload we just deleted. Determining the starting time slots for new payloads being added is done by simply keeping track of where the end of the VC table is in drm_dp_mst_topology_mgr->next_start_slot. Additionally, it's worth noting that we no longer have a single update_payload() function. Instead, we now have drm_dp_mst_add_payload_step1|2() and drm_dp_mst_remove_payload(). As such, it's now left it up to the driver to figure out when to add or remove payloads. The driver already knows when it's disabling/enabling CRTCs, so it also already knows when payloads should be added or removed. Changes since v1: * Refactor around all of the completely dead code changes that are happening in amdgpu for some reason when they really shouldn't even be there in the first place… :\ * Remove mention of sending one ACT per series of payload updates. As Wayne Lin pointed out, there are apparently hubs on the market that don't work correctly with this scheme and require a separate ACT per payload update. * Fix accidental drop of mst_mgr.lock - Wayne Lin * Remove mentions of allowing multiple ACT updates per payload change, mention that this is a result of vendors not consistently supporting this part of the spec and requiring a unique ACT for each payload change. * Get rid of reference to drm_dp_mst_port in DC - turns out I just got myself confused by DC and we don't actually need this. Changes since v2: * Get rid of fix for not sending payload deallocations if ddps=0 and just go back to wayne's fix Signed-off-by: Lyude Paul <lyude@redhat.com> Cc: Wayne Lin <Wayne.Lin@amd.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Fangzhi Zuo <Jerry.Zuo@amd.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sean Paul <sean@poorly.run> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220817193847.557945-18-lyude@redhat.com
2022-08-23drm/amdgpu/dm/mst: Rename get_payload_table()Lyude Paul1-3/+4
This function isn't too confusing if you see the comment around the call-site for it, but if you don't then it's not at all obvious this is meant to copy DRM's payload table over to DC's internal state structs. Seeing this function before finding that comment definitely threw me into a loop a few times. So, let's rename this to make it's purpose more obvious regardless of where in the code you are. Signed-off-by: Lyude Paul <lyude@redhat.com> Cc: Wayne Lin <Wayne.Lin@amd.com> Cc: Fangzhi Zuo <Jerry.Zuo@amd.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220817193847.557945-3-lyude@redhat.com
2022-08-23drm/amdgpu/dc/mst: Rename dp_mst_stream_allocation(_table)Lyude Paul1-5/+4
Just to make this more clear to outside contributors that these are DC-specific structs, as this also threw me into a loop a number of times before I figured out the purpose of this. Signed-off-by: Lyude Paul <lyude@redhat.com> Cc: Wayne Lin <Wayne.Lin@amd.com> Cc: Fangzhi Zuo <Jerry.Zuo@amd.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220817193847.557945-2-lyude@redhat.com
2022-08-16drm/amd/display: implement DSC pass-through supportHamza Mahfooz1-4/+41
Currently, we only attempt to setup DSC at the virtual DPCD port, however many modern displays come with DSC support and MST hubs can now support DSC pass-through. So, to more optimally make use of the available bandwidth, use DSC pass-through when possible by adding DSC pass-through enablement support into the DSC enable sequence. Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-28drm/amd/display: fix signedness bug in execute_synaptics_rc_command()Dan Carpenter1-1/+1
The "ret" variable needs to be signed for the error handling to work. Fixes: 2ca97adccdc9 ("drm/amd/display: Add Synaptics Fifo Reset Workaround") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-20drm/amd/display: Add tags for indicating mst progress statusWayne Lin1-2/+16
[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>
2022-06-21drm/amd/display: Release remote dc_sink under mst scenarioWayne Lin1-17/+1
[Why] Observe that we have several problems while releasing remote dc_sink under mst cases. - When unplug mst branch device from the source, we now try to free all remote dc_sinks in dm_helpers_dp_mst_stop_top_mgr(). However, there are bugs while we're releasing dc_sinks here. First of all, link->remote_sinks[] array get shuffled within dc_link_remove_remote_sink(). As the result, increasing the array index within the releasing loop is wrong. Secondly, it tries to call dc_sink_release() to release the dc_sink of the same aconnector every time in the loop. Which can't release dc_sink of all aconnector in the mst topology. - There is no code path for us to release remote dc_sink for disconnected sst monitor which unplug event is notified by CSN sideband message. Which means we'll use stale dc_sink data to represent later on connected monitor. Also, has chance to break the maximum remote dc_sink number constraint. [How] Distinguish unplug event of mst scenario into 2 cases. * Unplug sst/legacy stream sink off the mst topology - Release related remote dc_sink in detec_ctx(). * Unplug mst branch device off the mst topology - Release related remote dc_sink in early_unregister() 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>
2022-05-10drm/amd/display: remove redundant CONFIG_DRM_AMD_DC_DCN in amdgpu_dmAlex Hung1-2/+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>
2022-03-31drm/amd/display: Fix pointer dereferenced before checkingHaowen Bai1-1/+1
The pointer edid_buf is dereferencing pointer edid before edid is being null checked. Fix this by assigning edid->raw_edid to edid_buf only if edid is not NULL, otherwise just NULL. Signed-off-by: Haowen Bai <baihaowen@meizu.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-02-24drm/amd/display: Add conditional around functionMagali Lemes1-1/+3
When CONFIG_DRM_AMD_DC_DCN is not set, the function 'dm_helpers_enable_periodic_detection' doesn't have its prototype defined, causing the following warning: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:805:6: warning: no previous prototype for function 'dm_helpers_enable_periodic_detection' [-Wmissing-prototypes] void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable) ^ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:805:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable) ^ static 1 warning generated. This commit silences this warning by adding a conditional directive around the mentioned function, and also corrects a small spelling error. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Magali Lemes <magalilemes00@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-02-23drm/amd/display: clear remote dc_sink when stop mstWayne Lin1-1/+19
[Why] Currently, we don't have code path to release remote dc_sink when unplug MST hub from the system. After few times hotplug, we hit the limition of maximum number of remote dc_sink and can't light up new connected monitor anymore. [How] Releasing all remote dc_sink at dm_helpers_dp_mst_stop_top_mgr() was removed by previous patch. Restore it. Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com> Acked-by: Solomon Chiu <solomon.chiu@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>
2022-02-02drm/amd/display: fix spelling mistake: synatpics -> synapticsColin Ian King1-16/+16
There are quite a few spelling mistakes in various function names and error messages. Fix these. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-01-25drm/amd/display: Add DSC Enable for Synaptics HubFangzhi Zuo1-0/+48
DSC sequence for non virtual dpcd synaptics hub 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>
2022-01-25drm/amd/display: Add Synaptics Fifo Reset WorkaroundFangzhi Zuo1-0/+133
Sequence to reset synaptics SDP fifo before enabling first stream 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>
2022-01-25drm/amd/display: Change return type of dm_helpers_dp_mst_stop_top_mgrIan Chen1-20/+4
Prepare for future dm can have different implementation depends on the return value. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Ian Chen <ian.chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-01-25drm/amd/display: Don't update drm connector when read local EDIDWayne Lin1-8/+0
[Why] Currently, when we're tentatively detecting link configuration under mst case, we will wrongly notify a none existing stream sink to drm layer. It's due to we'll call amdgpu_dm_update_connector_after_detect() within dm_helpers_read_local_edid() to update connector when we're still under tentative detection procedure. [How] dm_helpers_read_local_edid() was designed to do "read" only. Don't update drm connector status when we're still under detection process. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-01-25drm/amd/display: Drop DCN for DP2.x logicWenjing Liu1-5/+1
[Why & How] DCN guard is not necessary for DP2.x relevant logic. Drop them. v2: squash in fix for misplaced #endif (Alex) Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amdgpu: replace drm_detect_hdmi_monitor() with drm_display_info.is_hdmiClaudio Suarez1-12/+7
Once EDID is parsed, the monitor HDMI support information is available through drm_display_info.is_hdmi. The amdgpu driver still calls drm_detect_hdmi_monitor() to retrieve the same information, which is less efficient. Change to drm_display_info.is_hdmi This is a TODO task in Documentation/gpu/todo.rst Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Claudio Suarez <cssk@net-c.es> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amdgpu: use drm_edid_get_monitor_name() instead of duplicating the codeClaudio Suarez1-15/+3
Use drm_edid_get_monitor_name() instead of duplicating the code that parses the EDID in dm_helpers_parse_edid_caps() Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Claudio Suarez <cssk@net-c.es> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-01drm/amd/display: Add DP-HDMI FRL PCON SST Support in DMFangzhi Zuo1-2/+11
1. Parse DSC caps from PCON DPCD 2. Policy determins if DSC is decoded at PCON 3. Enable/disable DSC at PCON Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-11-24drm/amd/display: fix accidental casting enum to boolMikita Lipski1-1/+1
[why/how] Fixing -Wint-in-bool-context Clang Build Failure Reviewed-by: Nicholas Choi <Nicholas.Choi@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-11-22drm/amd/display: Enable DSC over eDPMikita Lipski1-1/+1
[why] - Adding a DM interface to enable DSC over eDP on Linux - DSC over eDP will allow to power savings by reducing the bandwidth required to support panel's modes - Apply link optimization algorithm to reduce link bandwidth when DSC is enabled [how] - Read eDP panel's DSC capabilities - Apply DSC policy on eDP panel based on its DSC capabilities - Enable DSC encoder's on the pipe - Enable DSC on panel's side by setting DSC_ENABLE DPCD register - Adding link optimization algorithm to reduce link rate or lane count based Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-10-27drm/amdgpu/display: fix build when CONFIG_DRM_AMD_DC_DCN is not setAlex Deucher1-1/+3
Need to guard some things with CONFIG_DRM_AMD_DC_DCN. Fixes: 41724ea273cdda ("drm/amd/display: Add DP 2.0 MST DM Support") Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Dave Airlie <airlied@gmail.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211027223914.1776061-1-alexander.deucher@amd.com
2021-10-25drm/amd/display: Add DP 2.0 MST DM SupportBhawanpreet Lakha1-1/+4
[Why] Add DP2 MST and debugfs support [How] Update the slot info based on the link encoding format Reviewed-by: "Lin, Wayne" <Wayne.Lin@amd.com> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211025223825.301703-5-lyude@redhat.com
2021-10-25drm: Update MST First Link Slot Information Based on Encoding FormatBhawanpreet Lakha1-1/+1
8b/10b encoding format requires to reserve the first slot for recording metadata. Real data transmission starts from the second slot, with a total of available 63 slots available. In 128b/132b encoding format, metadata is transmitted separately in LLCP packet before MTP. Real data transmission starts from the first slot, with a total of 64 slots available. v2: * Move total/start slots to mst_state, and copy it to mst_mgr in atomic_check v3: * Only keep the slot info on the mst_state * add a start_slot parameter to the payload function, to facilitate non atomic drivers (this is a temporary workaround and should be removed when we are moving out the non atomic driver helpers) v4: *fixed typo and formatting v5: (no functional changes) * Fixed formatting in drm_dp_mst_update_slots() * Reference mst_state instead of mst_state->mgr for debugging info Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> [v5 nitpicks] Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211025223825.301703-3-lyude@redhat.com
2021-10-06drm/amd/display: Support for SET_CONFIG processing with DMUBJude Shih1-2/+15
[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 periodic detection when zstate is enabledEric Yang1-0/+6
[Why] When system is in Z10 HPD interrupts cannot fire, we may miss display configuration changes. [How] When Zstate is enabled, if DMUB indicate DCN has lost power, do a complete detection periodically. Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Eric Yang <Eric.Yang2@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-01drm/amd/display: Limit max DSC target bpp for specific monitorsRoman Li1-0/+35
[Why] Some monitors exhibit corruption at 16bpp DSC. [How] - Add helpers for patching edid caps. - Use it for limiting DSC target bitrate to 15bpp for known monitors Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Roman Li <Roman.Li@amd.com> Cc: stable@vger.kernel.org Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-01drm/amd/display: Add DP 2.0 SST DC SupportFangzhi Zuo1-0/+8
1. Retrieve 128/132b link cap. 2. 128/132b link training and payload allocation. 3. UHBR10 link rate support. [squash in warning fixes - Alex] Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-04drm/amd/display: Add DCN3.1 clock manager supportNicholas Kazlauskas1-0/+6
Adds support for clock requests for the various parts of the DCN3.1 IP and the interfaces and definitions for sending messages to SMU/PMFW. Includes new support for z9/10, detecting SMU timeout and p-state support enablement. Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-10drm/amd/display: Add dc log for DP SST DSC enable/disableFangzhi Zuo1-2/+4
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: Mikita Lipski <Mikita.Lipski@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>
2021-05-10drm/amd/display: Support for DMUB AUXJude Shih1-3/+10
[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>
2021-04-20drm/amd/display: add helper for enabling mst stream featuresBing Guo1-0/+25
[Why] Some MST devices uses different method to enable mst specific stream features. [How] Add dm_helpers_mst_enable_stream features. This can be modified later when we are ready to implement those features. Signed-off-by: Bing Guo <bing.guo@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Log DMCUB trace buffer eventsLeo (Hanghong) Ma1-2/+10
[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>
2021-03-23drm/amd/display: Fix typo for helpers function nameLeo (Hanghong) Ma1-1/+1
[why] Word "helper" was misspelled as "helpes" in dm_helpes_dmub_outbox0_interrupt_control function. [how] Fix the spelling. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Reviewed-by: Yongqiang Sun <yongqiang.sun@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 Liu1-3/+37
[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>
2021-03-02drm/amd/display: fix the return of the uninitialized value in retColin Ian King1-1/+1
Currently if stream->signal is neither SIGNAL_TYPE_DISPLAY_PORT_MST or SIGNAL_TYPE_DISPLAY_PORT then variable ret is uninitialized and this is checked for > 0 at the end of the function. Ret should be initialized, I believe setting it to zero is a correct default. Addresses-Coverity: ("Uninitialized scalar variable") Fixes: bd0c064c161c ("drm/amd/display: Add return code instead of boolean for future use") Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-02drm/amd/display: Implement dmub trace eventYongqiang Sun1-0/+6
[Why & How] DMUB FW send trace event via outbox0 interrupt. Driver will handle it. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-09drm/amd/display: Add return code instead of boolean for future useFangzhi Zuo1-4/+4
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-05drm/amd/display: remove unused including <linux/version.h>Tian Tao1-1/+0
Remove including <linux/version.h> that don't need it. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-01drm/amd/display/amdgpu_dm/amdgpu_dm_helpers: Use 'gnu_printf' format notationLee Jones1-0/+1
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c: In function ‘dm_dtn_log_append_v’: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:345:2: warning: function ‘dm_dtn_log_append_v’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:375:3: warning: function ‘dm_dtn_log_append_v’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] Cc: Harry Wentland <harry.wentland@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-01drm/amd/display: Clear dc remote sinks on MST disconnectAurabindo Pillai1-2/+20
[Why&How] Recent changes to upstream mst code remove the callback which cleared the internal state for mst. Move the missing functionality that was previously called through the destroy call back for mst connector destroy Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Eryk Brol <eryk.brol@amd.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: fold CONFIG_DRM_AMD_DC_DCN3* into CONFIG_DRM_AMD_DC_DCN (v3)Alex Deucher1-2/+0
Avoids confusion in configurations. v2: fix build when CONFIG_DRM_AMD_DC_DCN is disabled v3: rebase on latest code Reviewed-by: Luben Tuikov <luben.tuikov@amd.com> (v1) Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-01drm/amd/display: Add DCN3 Support in DM (v2)Bhawanpreet Lakha1-0/+20
Handle DCN3 in amdgpu_dm v2: fix num_pkrs handling Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-06drm/amd/display: Add dm support for DP 1.4 Compliance edid corruption testJerry (Fangzhi) Zuo1-27/+13
It works together with drm framework "drm: Add support for DP 1.4 Compliance edid corruption test" Add the edid validity check scenario when edid base block is read back with error. Send back real edid checksum and enable fail-safe mode in DC. Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-13drm/amd/display: Change "error" to "dc_log" at amdgpu_dm dpcd reading stageZhan Liu1-1/+1
[Why] If reading dpcd happens ahead of hw initialization, then aconnector is NULL at this point. This is expected, so there is no need to output an error (which will spam dmesg.log) [How] Change type of message from "error" to "DC_LOG_DC". Signed-off-by: Zhan Liu <zhan.liu@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Zhan Liu <zhan.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>