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path: root/drivers/gpu/drm/amd/display/dc/dcn10
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2021-07-21drm/amd/display: Assume active upper layer owns the HW cursorKrunoslav Kovac
[why] The current logic checks if there's an upper pipe whose viewport completely covers the current pipe viewport. This fails in pipe splitting case as you can have layer 1 pipe that crosses the two layer 0 pipes where it's contained in both, but neither covers it completely, hence we allow the cursor on both layers. [How] Instead of trying to "sum up" rectangles from the higher level pipes which could leave gaps and would not work generically, we will assume if there's an upper layer that is active, it will control the HW cursor. Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-22drm/amdgpu/display: fold DRM_AMD_DC_DCN3_1 into DRM_AMD_DC_DCNAlex Deucher
No need for a separate flag now that DCN3.1 is not in bring up. Fold into DRM_AMD_DC_DCN like previous DCN IPs. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-21drm/amd/display: Multiplane cursor position incorrect when plane rotatedAric Cyr
[Why] When video plane is rotate the cursor position is incorrect and not matching the desktop location. [How] When a plane is rotated 90 or 270 degrees, the src_rect.width and height should be swapped when determining the scaling factor compared to the dst_rect. Signed-off-by: Aric Cyr <aric.cyr@amd.com> Reviewed-by: Jun Lei <Jun.Lei@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>
2021-06-18drm/amd/display: Remove the repeated dpp1_full_bypass declarationShaokun Zhang
Function 'dpp1_full_bypass' is declared twice, so remove the repeated declaration and unnessary blank line. Cc: Harry Wentland <harry.wentland@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-15drm/amd/display: Add interface to get Calibrated Avg Level from FIFOWesley Chalmers
[WHY] Hardware has handed down a new sequence requiring the value of this register be read from clk_mgr. Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-15drm/amd/display: Enforce DPCD Address rangesWesley Chalmers
[WHY] Some DPCD addresses, notably LTTPR Capability registers, are expected to be read all together in a single DPCD transaction. Rather than force callers to read registers they don't need, we want to quietly extend the addresses read, and only return back the values the caller asked for. This does not affect DPCD writes. [HOW] Create an additional layer above AUX to perform 'checked' DPCD transactions. Iterate through an array of DPCD address ranges that are marked as being contiguous. If a requested read falls within one of those ranges, extend the read to include the entire range. After DPCD has been queried, copy the requested bytes into the caller's data buffer, and deallocate all resources used. Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-15drm/amd/display: Read LTTPR caps first on bootupWesley Chalmers
[WHY] SCR for DP 2.0 requires that LTTPR caps be read first on hotplug. For the sake of consistency, this should also be the case on bootup. Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-08drm/amd/display: Add swizzle visual confirm modePo-Ting Chen
[Why] To support a new visual confirm mode: swizzle to show the specific color at the screen border according to different surface swizzle mode. Currently we only support the Linear mode with red color. Signed-off-by: Po-Ting Chen <robin.chen@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>
2021-06-08drm/amd/display: Return last used DRR VTOTAL from DCJayendran Ramani
[How] Add call to get the last used VTOTAL from DC Signed-off-by: Jayendran Ramani <Jayendran.Ramani@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@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>
2021-06-08drm/amd/display: Refactor visual confirmWyatt Wood
[Why + How] Visual confirm has no asic-specific logic, so we can refactor and unify these functions that are currently spread out across multiple dcn files. Add a new hw sequencer interface update_visual_confirm_color, and a new mpc function pointer set_bg_color. This will allow visual confirm to updated independently of MPCC blending updates. v2: squash in DCN3.1 fixes Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@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>
2021-06-07drm/amd/display: remove no need variableBernard Zhao
remove no need variable, just return the DC_OK Signed-off-by: Bernard Zhao <bernard@vivo.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-04drm/amd/display: Add DCN3.1 DCHHUBNicholas Kazlauskas
Adds DCN3.1 DCHHUB programming and modifies DCN20/DCN30 shared hardware sequencer helpers to use these hooks. HW Blocks: +--------++------+ +----------+ |DCHUBBUB|| HUBP | <-- | MMHUBBUB | +--------++------+ +----------+ | ^ v | +--------+ +--------+ | DPP | <---------> | DWB | +--------+ +--------+ | ^ v | +--------+ | | MPC | | +--------+ | | | v | +-------+ | | OPP | | +-------+ | | | v | +--------+ / | OPTC | -------------- +--------+ | v +--------+ +--------+ | DIO | | DCCG | +--------+ +--------+ No changes to MMHUBBUB or DWB programming, added to diagram for clarity. 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>
2021-06-04drm/amd/display: Add DCN3.1 OPTCNicholas Kazlauskas
Add support for programming the DCN3.1 OPTC (Output Timing Controller) HW Blocks: +--------+ | MPC | +--------+ | v +-------+ | OPP | +-------+ | v +--------+ | OPTC | +--------+ | v +--------+ +--------+ | DIO | | DCCG | +--------+ +--------+ There are no changes to OPP or MPC for DCN3.1, so the diagram will include them in this patch. 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>
2021-06-04drm/amd/display: Add DCN3.1 DIONicholas Kazlauskas
Add support for the DIO (Display IO) block of DCN3.1 which controls legacy HDMI/DP stream/link encoding. HW Blocks: +--------+ +--------+ | DIO | | DCCG | +--------+ +--------+ Includes some updates to core logic for link encoder assignment and future support for new high bandwidth output. v2: squash in unused variable fix (Alex) 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>
2021-05-27drm/amd/display: Increase linebuffer pixel depth to 36bpp.Mario Kleiner
Testing with the photometer shows that at least Raven Ridge DCN-1.0 does not achieve more than 10 bpc effective output precision with a 16 bpc unorm surface of type SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616, unless linebuffer depth is increased from LB_PIXEL_DEPTH_30BPP to LB_PIXEL_DEPTH_36BPP. Otherwise precision gets truncated somewhere to 10 bpc effective depth. Strangely this increase was not needed on Polaris11 DCE-11.2 during testing to get 12 bpc effective precision. It also is not needed for fp16 framebuffers. Tested on DCN-1.0 and DCE-11.2. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-27drm/amd/display: Add support for SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616.Mario Kleiner
Add the necessary format definition, bandwidth and pixel size mappings, prescaler setup, and pixelformat selection, following the logic already present for SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616. The new SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616 is implemented as the old SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616 format, but with swapped red <-> green color channel, by use of the hardware xbar. Please note that on the DCN 1/2/3 display engines, the pixelformat in hubp and dpp setup for the old SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616 and the new SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616 was changed from format id 22 to id 26. See amd/include/navi10_enum.h for the meaning of the id's. For format 22, the display engine read the framebuffer in 16 bpc format, but truncated to the 12 bpc actually supported by later pipeline stages. However, the engine took the 12 LSB of each color component for truncation, which is incompatible with rendering at least under Vulkan, where content is 16 bit wide, and a 12 MSB alignment would be appropriate, if any. Format 20 for ARGB16161616_12MSB does work, but even better, we can choose format 26 for ARGB16161616_UNORM, keeping all 16 bits around until later stages of the display pipeline. This allows to directly consume what the rendering hw produces under Vulkan for swapchain format VK_FORMAT_R16G16B16A16_UNORM, as tested with a patched version of the current AMD open-source amdvlk driver which maps swapchain format VK_FORMAT_R16G16B16A16_UNORM onto DRM_FORMAT_XBGR16161616. The old id 22 would cause colorful pixeltrash to be displayed instead. Tested under DCN-1.0 and DCE-11.2. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-27Revert "drm/amd/display: Refactor and add visual confirm for HW Flip Queue"Qingqing Zhuo
This reverts commit 3ca402375a2197579d1029e7fa9d856847fe0e7b. Recent visual confirm changes are regressing the driver, causing a black screen on boot in some green sardine configs, or visual confirm is not updated at all. Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-27drm/amd/display: fix odm scalingDmytro Laktyushkin
There are two issues with scaling calculations, odm recout calculation and matching viewport to actual recout. This change fixes both issues. Odm recout calculation via special casing and viewport matching issue by reworking the viewport calcualtion to use scaling ratios and recout to derrive the required offset and size. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-19drm/amd/display: Refactor and add visual confirm for HW Flip QueueWyatt Wood
[Why] Visual confirm will indicate if driver is programming the surface address. Refactor is required because much of the visual confirm logic is buried deep in the mpcc files. In addition, visual confirm is not updated during fast updates. [How] In order to have visual confirm for driver flips, visual confirm needs to be updated on every frame, including fast updates. Add a new hw sequencer interface update_visual_confirm_color, and a new mpc function pointer set_bg_color. v2: drop unused variable (Alex) Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@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/amd/display: Document set RECOUT operationRodrigo Siqueira
During the investigation on how to add visual confirmation on top of the planes used by DCN, it becomes evident that the lack of information in the code makes this work unnecessarily complicated. This commit introduces a set of documentation related to the RECOUT operation in order to make it easy for developers to navigate this set of functions. Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@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/amd/display: Add kernel-doc to some hubp functionsRodrigo Siqueira
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@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/amd/display: Remove legacy commentsRodrigo Siqueira
To improve the code readability, this commit removes a set of commented and not used functions for a long time. Notice that now we have the amdgpu_dm_dtn_log, which prints all the relevant information that we need. Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@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/amd/display: Add documentation for power gate planeRodrigo Siqueira
This commit introduces kernel documentation to some essential functions related to power gate control over planes. It also adds a macro to make one part of the code easy to understand. Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@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: fix use_max_lb flag for 420 pixel formatsDmytro Laktyushkin
Right now the flag simply selects memory config 0 when flag is true however 420 modes benefit more from memory config 3. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@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: update DCN to use new surface programmingPaul Hsieh
[Why] The split pipe config is updated due to antoher stream bandwidth validataion. Driver doesn't reprogram the split pipe config to signle pipe cause SW use signel pipe but HW still use pipe split. [How] track global updates and update any hw that isn't related to current stream being updated. Signed-off-by: Paul Hsieh <paul.hsieh@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@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>
2021-04-09drm/amd/display: Add function and debugfs to dump DCC_EN bitVictor Lu
[why] Currently to view the DCC_EN bit the entire DTN log must be dumped. A compact method to view the DCC_EN bit is desirable. [how] Introduce new debugfs interface that only dumps the DCC_EN bit. Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dcc_en Signed-off-by: Victor Lu <victorchengchi.lu@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Move vupdate keepout programming from DCN20 to DCN10Leo Li
[Why] The OTG_VUPDATE_KEEPOUT register and fields is available on DCN10, and named the same in DCN20. [How] Move register definition and programming function to dcn10 optc. There is no functional change. Signed-off-by: Leo Li <sunpeng.li@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: Fix typo for variable nameVladimir Stempen
[why] Word "remainder" was misspelled as "reminder" in reduceSizeAndFraction method variable. [how] Fix the spelling. Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com> Reviewed-by: Alexander Deucher <alexander.deucher@amd.com> Reviewed-by: Bindu R <Bindu.R@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: Change input parameter for set_drrAlvin Lee
[Why] Change set_drr to pass in the entire dc_crtc_timing_adjust structure instead of passing in the parameters individually. This is to more easily pass in required parameters in the adjust structure when it gets updated. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alvin Lee <alvin.lee2@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: revert max lb use by default for n10Dmytro Laktyushkin
This is causing a pstate change underflow regression for unknown reason Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09drm/amd/display: revert max lb lines changeDmytro Laktyushkin
Some hardware revisions do have a max number of lines limitation not honouring which can cause pstate switch underflow. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amd/display: Separate caps for maximum RGB and YUV plane countsAtufa Khan
Not all ASICs have same plane capabilities so need to split them out for proper support handling. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Atufa Khan <Atufa.Khan@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amd/display: use max lb for latency hidingDmytro Laktyushkin
Enable max memory lb config to improve stutter efficiency and latency hiding. Also increase max number of lb lines to be used by dml since experiments have shown that there isnt a hard max beyond what fits in lb. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-23drm/amd/display: Enable pflip interrupt upon pipe enableQingqing Zhuo
[Why] pflip interrupt would not be enabled promptly if a pipe is disabled and re-enabled, causing flip_done timeout error during DP compliance tests [How] Enable pflip interrupt upon pipe enablement 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>
2021-03-02drm/amd/display: Fix 64 bit modulus operation using div64 APIVladimir Stempen
[why] Synchronization displays with different timings feature uses reminder of 64 bit division (modulus operator) , which is not supported by 32 bit platforms [how] Use div64 API for 64 bit modulus Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com> Tested-by: Bindu Ramamurthy<bindu.r@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-02drm/amd/display: Fix 64 bit divisions on 32 bit platforms by using div64 APIVladimir Stempen
[why] Synchronization displays with different timings feature uses division operator for 64 bit division, which is not supported by 32 bit platforms [how] Use div64 API for 64 bit division Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com> Tested-by: Bindu Ramamurthy<bindu.r@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-02drm/amd/display: Refactored DC interfaces to support multiple eDPJake Wang
[Why & How] Some existing DC interfaces are optimized to return a single eDP link/stream. Refactored those DC interfaces to support multiple eDP. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Jake Wang <haonan.wang2@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-03-02drm/amd/display: Support for DMUB AUXMeenakshikumar Somasundaram
[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) As the driver holds dal and dc locks while waiting for CV, the outbox1 ISR is registered with noMutexWait set to true, which allows ISR to run and signal CV. This sets a constraint on ISR to not modify variables such as dc, dmub, etc. 4) Created dmub_outbox.c with dmub_enable_outbox_notification() to enable outbox1 mailbox. 5) New mailbox address ranges allocated for outbox1 of size DMUB_RB_SIZE. Created dmub functions for Outbox1: dmub_dcn20_setup_out_mailbox(), dmub_dcn20_get_outbox1_wptr() and dmub_dcn20_set_outbox1_rptr(). 6) Added functions dc_stat_get_dmub_notification() and dmub_srv_stat_get_notification() to retrieve Outbox1 message. 7) Currently, DMUB doesn't opens DDC in AUX mode before issuing AUX transaction. A workaround is added in dce_aux_transfer_dmub_raw() to open in DDC in AUX mode for every AUX transaction. 8) Added dc debug option enable_dmub_aux_for_legacy_ddc enable/disable DMUB AUX. This debug option is checked dce_aux_transfer_with_retries() to select the method to process AUX transactions. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-22drm/amd/display: Synchronize displays with different timingsVladimir Stempen
[why] Vendor based fan noise improvement [how] Report timing synchronizable when DP streams time frame difference is less than 0.05 percent. Adjust DP DTOs and sync displays using MASTER_UPDATE_LOCK_DB_X_Y Signed-off-by: Vladimir Stempen <vladimir.stempen@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>
2021-02-22drm/amd/display: Remove Assert from dcn10_get_dig_frontendEric Bernstein
[Why] In some cases, this function is called when DIG BE is not connected to DIG FE, in which case a value of zero isn't invalid and assert should not be hit. [How] Remove assert and handle ENGINE_ID_UNKNOWN result in calling function. Signed-off-by: Eric Bernstein <eric.bernstein@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>
2021-02-18drm/amd/display: Old sequence for HUBP blankAurabindo Pillai
New proposed sequence for HUBP blanking causes regressions where the hardware would fail to enter blank which triggers an assert in the new sequence. This change brings back the old sequence. Fixes: 985faf2c4ecb60 ("drm/amd/display: New sequence for HUBP blank") Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-09drm/amd/display: fix type mismatch error for return variableDale Zhao
It is possible for ret_vsnprintf to be assigned negative value in error cases. As an unsigned variable, negative values which are stored in their 2's complement form gets treated as a positive number. This will led to treating bad cases as good ones. eg: -1 gets stored as 0xFFFFFFFF on a 32 bit system Signed-off-by: Dale Zhao <dale.zhao@amd.com> Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-09drm/amd/display: Add DIG_CLOCK_PATTERN in the transmitter controlDerek Lai
[Why and How] VBIOS program DIG_CLK_PATTERN using engine ID instead of PHY ID. Workaround by writing value for 0x1f (for HDMI) after calling vbios. Signed-off-by: Derek Lai <Derek.Lai@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-02drm/amd/display: Set power_gated to true for seamless boot pipe initLewis Huang
[Why] In seamless boot without a flip case, the flag power_gated didn't get cleared when resetting path mode because the plane_state is null. The following sequence will cause this issue: 1. OS call set mode to clone/extended 2. Reset path mode to remove edp [How] Set power gated default to true in seamless boot pipe Signed-off-by: Lewis Huang <Lewis.Huang@amd.com> Reviewed-by: Martin Leung <Martin.Leung@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-01drm/amd/display: Simplify bool conversionAbaci Team
Fix the following coccicheck warning: ./drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c:3137:35-40: WARNING: conversion to bool not needed here Reported-by: Abaci Robot <abaci@linux.alibaba.com> Suggested-by: Yang Li <oswb@linux.alibaba.com> Signed-off-by: Abaci Team <abaci-bugfix@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-20drm/amd/display: Use hardware sequencer functions for PG controlNicholas Kazlauskas
[Why & How] These can differ per ASIC or not be present. Don't call the dcn20 ones directly but rather the ones defined by the ASIC init table. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Eric Yang <eric.yang2@amd.com> Acked-by: Anson Jacob <anson.jacob@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-14drm/amd/display: Simplify bool comparisonYang Li
Fix the following coccicheck warning: ./drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c:580:23-31: WARNING: Comparison to bool Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <abaci-bugfix@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-13drm/amd/display: disable dcn10 pipe split by defaultLi, Roman
[Why] The initial purpose of dcn10 pipe split is to support some high bandwidth mode which requires dispclk greater than max dispclk. By initial bring up power measurement data, it showed power consumption is less with pipe split for dcn block. This could be reason for enable pipe split by default. By battery life measurement of some Chromebooks, result shows battery life is longer with pipe split disabled. [How] Disable pipe split by default. Pipe split could be still enabled when required dispclk is greater than max dispclk. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Signed-off-by: Roman Li <Roman.Li@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-13drm/amd/display: enable HUBP blank behaviourBhawanpreet Lakha
- Reverts "drm/amd/display: Revert HUBP blank behaviour for now" - Hubp blank will fail if the pipe is locked (this is the case on linux), so add a check to make sure pipe isn't locked, if it is then defer the blank to post_unlock. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-13drm/amd/display: New sequence for HUBP blankWesley Chalmers
[WHY] DCN30 has a bug where blanking HUBP blocks pstate allow unless HUBP_DISABLE is toggled afterwards. [HOW] Create a HW sequence for blanking HUBP. 1. Wait for enter VBLANK 2. Set HUBP_BLANK 3. Make sure HUBP_IN_BLANK = 1 4. Toggle HUBP_DISABLE on and off to perform soft reset All existing calls to hubp->funcs->set_blank should be replaced with this new sequence. In wait_for_mpcc_disconnect, only blank the pipe being disconnected, and leave all other pipes unmodified. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>