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2021-12-16drm/amd/display: Fix warning comparing pointer to 0Jiapeng Chong1-1/+1
Fix the following coccicheck warning: ./drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c:744:35-36: WARNING comparing pointer to 0. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14amdgpu: fix some kernel-doc markupYann Dirson2-3/+3
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>
2021-12-14drm/amd/display: 3.2.166Aric Cyr1-1/+1
Tested-by: Daniel Wheeler <daniel.wheeler@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>
2021-12-14drm/amd/display: implement dc_mode_memclkMartin Leung14-7/+188
why: Need interface to lower clocks when in dc (power save) mode. Must be able to work with p_state unsupported cases Can cause flicker when OS notifies us of dc state change how: added dal3 interface for KMD added pathway to query smu for this softmax added blank before clock change to override underflow added logic to change clk based on pstatesupport and softmax added logic in prepare/optimize_bw to conform while changing clocks Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Martin Leung <Martin.Leung@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: ODM + MPO window on only one half of ODMEric Bernstein2-21/+71
[Why] For ODM + MPO window on one half of ODM, only 3 pipes should be allocated and scaling parameters adjusted to handle this case [How] Fix pipe allocation when MPO viewport is only on one side of ODM split, and modify scaling paramters. Added diags test cases for ODM + windows MPO, where MPO window is on right half, left half, and both halves or ODM. Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Eric Bernstein <eric.bernstein@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: Reset DMCUB before HW initNicholas Kazlauskas1-0/+5
[Why] If the firmware wasn't reset by PSP or HW and is currently running then the firmware will hang or perform underfined behavior when we modify its firmware state underneath it. [How] Reset DMCUB before setting up cache windows and performing HW init. Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: [FW Promotion] Release 0.0.97Anthony Koo1-2/+2
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: Force det buf size to 192KB with 3+ streams and upscalingMichael Strauss1-0/+8
[WHY] This workaround resolves underflow caused by incorrect DST_Y_PREFETCH. Overriding to 192KB DET buf size until the DST_Y_PREFETCH calc is fixed. Reviewed-by: Eric Yang <Eric.Yang2@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Michael Strauss <michael.strauss@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: parse and check PSR SU capsMikita Lipski3-13/+98
[why] Adding a function to read PSR capabilities and ALPM capabilities. Also adding a helper function to validate if the sink and the driver support PSR SU. [how] - isolated all PSR and ALPM reading calls to a separate funciton - set all required PSR caps - added a helper function to check if PSR SU is supported by sink and the driver Reviewed-by: Roman Li <Roman.Li@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: Add src/ext ID info for dummy serviceSolomon Chiu1-4/+6
[Why] Current error log of dummy irq service doesn't have src/ext ID info in the log. [How] Add src/ext ID in ack/set of dummy irq service. Reviewed-by: Wayne Lin <Wayne.Lin@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Solomon Chiu <solomon.chiu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: Add debugfs entry for ILRWayne Lin1-0/+134
[Why & How] In order to know the intermediate link rates supported by the eDP panel and test to select the optimized link rate to save power, create a new debugfs entry "ilr_setting" for setting ILR. Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14drm/amd/display: Set exit_optimized_pwr_state for DCN31Nicholas Kazlauskas1-0/+1
[Why] SMU now respects the PHY refclk disable request from driver. This causes a hang during hotplug when PHY refclk was disabled because it's not being re-enabled and the transmitter control starts on dc_link_detect. [How] We normally would re-enable the clk with exit_optimized_pwr_state but this is only set on DCN21 and DCN301. Set it for dcn31 as well. This fixes DMCUB timeouts in the PHY. Fixes: 64b1d0e8d500 ("drm/amd/display: Add DCN3.1 HWSEQ") Reviewed-by: Eric Yang <Eric.Yang2@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-14Merge v5.16-rc5 into drm-nextDaniel Vetter8-17/+67
Thomas Zimmermann requested a fixes backmerge, specifically also for 96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()") Just a bunch of adjacent changes conflicts, even the big pile of them in vc4. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-12-13drm/amd/display: fix function scopesIsabella Basso48-517/+179
This turns previously global functions into static, thus removing compile-time warnings such as: warning: no previous prototype for 'get_highest_allowed_voltage_level' [-Wmissing-prototypes] 742 | unsigned int get_highest_allowed_voltage_level(uint32_t chip_family, uint32_t hw_internal_rev, uint32_t pci_revision_id) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ warning: no previous prototype for 'rv1_vbios_smu_send_msg_with_param' [-Wmissing-prototypes] 102 | int rv1_vbios_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr, unsigned int msg_id, unsigned int param) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Changes since v1: - As suggested by Rodrigo Siqueira: 1. Rewrite function signatures to make them more readable. 2. Get rid of unused functions in order to remove 'defined but not used' warnings. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Isabella Basso <isabbasso@riseup.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd/display: Reduce stack size for dml31 UseMinimumDCFCLKMichel Dänzer1-235/+69
Use the struct display_mode_lib pointer instead of passing lots of large arrays as parameters by value. Addresses this warning (resulting in failure to build a RHEL debug kernel with Werror enabled): ../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c: In function ‘UseMinimumDCFCLK’: ../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:7478:1: warning: the frame size of 2128 bytes is larger than 2048 bytes [-Wframe-larger-than=] NOTE: AFAICT this function previously had no observable effect, since it only modified parameters passed by value and doesn't return anything. Now it may modify some values in struct display_mode_lib passed in by reference. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Michel Dänzer <mdaenzer@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd/display: Reduce stack size for dml31_ModeSupportAndSystemConfigurationFullMichel Dänzer1-86/+99
Move code using the Pipe struct to a new helper function. Works around[0] this warning (resulting in failure to build a RHEL debug kernel with Werror enabled): ../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c: In function ‘dml31_ModeSupportAndSystemConfigurationFull’: ../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:5740:1: warning: the frame size of 2144 bytes is larger than 2048 bytes [-Wframe-larger-than=] The culprit seems to be the Pipe struct, so pull the relevant block out into its own sub-function. (This is porting commit a62427ef9b55 ("drm/amd/display: Reduce stack size for dml21_ModeSupportAndSystemConfigurationFull") from dml31 to dml21) [0] AFAICT this doesn't actually reduce the total amount of stack which can be used, just moves some of it from dml31_ModeSupportAndSystemConfigurationFull to the new helper function, so the former happens to no longer exceed the limit for a single function. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Michel Dänzer <mdaenzer@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amdgpu: remove unnecessary variablesIsabella Basso1-6/+1
This fixes the warnings below, and also drops the display_count variable, as it's unused. In function 'svm_range_map_to_gpu': warning: variable 'bo_va' set but not used [-Wunused-but-set-variable] 1172 | struct amdgpu_bo_va bo_va; | ^~~~~ ... In function 'dcn201_update_clocks': warning: variable 'enter_display_off' set but not used [-Wunused-but-set-variable] 132 | bool enter_display_off = false; | ^~~~~~~~~~~~~~~~~ Changes since v1: - As suggested by Rodrigo Siqueira: 1. Drop display_count variable. - As suggested by Felix Kuehling: 1. Remove block surrounding amdgpu_xgmi_same_hive. Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Isabella Basso <isabbasso@riseup.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd: move variable to local scopeMario Limonciello1-2/+2
`edp_stream` is only used when backend is enabled on eDP, don't declare the variable outside that scope. Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd: add some extra checks that is_dig_enabled is definedMario Limonciello2-12/+12
There are a few places that this isn't checked that could potentially be a NULL pointer access. Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd: append missing includesIsabella Basso10-0/+20
This fixes warnings caused by global functions lacking prototypes:, such as: warning: no previous prototype for 'dcn303_hw_sequencer_construct' [-Wmissing-prototypes] 12 | void dcn303_hw_sequencer_construct(struct dc *dc) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ... warning: no previous prototype for ‘amdgpu_has_atpx’ [-Wmissing-prototypes] 76 | bool amdgpu_has_atpx(void) { | ^~~~~~~~~~~~~~~ Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Isabella Basso <isabbasso@riseup.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd: fix improper docstring syntaxIsabella Basso1-0/+4
This fixes various warnings relating to erroneous docstring syntax, of which some are listed below: warning: Function parameter or member 'adev' not described in 'amdgpu_atomfirmware_ras_rom_addr' ... warning: expecting prototype for amdgpu_atpx_validate_functions(). Prototype was for amdgpu_atpx_validate() instead ... warning: Excess function parameter 'mem' description in 'amdgpu_preempt_mgr_new' ... warning: Cannot understand * @kfd_get_cu_occupancy - Collect number of waves in-flight on this device ... warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Signed-off-by: Isabella Basso <isabbasso@riseup.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd/display: Add feature flags to disable LTTPRAurabindo Pillai1-0/+7
[Why] Allow for disabling non transparent mode of LTTPR for running tests. [How] Add a feature flag and set them during init sequence. The flags are already being used in DC. Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-13drm/amd/display: Add Debugfs Entry to Force in SST SequenceFangzhi Zuo1-0/+30
It is to force SST sequence on MST capable receivers. v2: squash in compilation fix when CONFIG_DRM_AMD_DC_DCN is not set Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-10Merge tag 'amd-drm-next-5.17-2021-12-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-nextDave Airlie67-419/+3118
amd-drm-next-5.17-2021-12-02: amdgpu: - Use generic drm fb helpers - PSR fixes - Rework DCN3.1 clkmgr - DPCD 1.3 fixes - Misc display fixes can cleanups - Clock query fixes for APUs - LTTPR fixes - DSC fixes - Misc PM fixes - RAS fixes - OLED backlight fix - SRIOV fixes - Add STB (Smart Trace Buffer) for supported dGPUs - IH rework - Enable seamless boot for DCN3.01 amdkfd: - Rework more stuff around IP discovery enumeration - Further clean up of interfaces with amdgpu - SVM fixes radeon: - Indentation fixes UAPI: - Add a new KFD header that defines some of the sysfs bitfields and enums that userspace has been using for a while The corresponding bit-fields and enums in user mode are defined in https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/blob/master/include/hsakmttypes.h Signed-off-by: Dave Airlie <airlied@redhat.com> # Conflicts: # drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211202191643.5970-1-alexander.deucher@amd.com
2021-12-08drm/amd/display: prevent reading unitialized linksMikita Lipski1-0/+2
[why/how] The function can be called on boot or after suspend when links are not initialized, to prevent it guard it with NULL pointer check Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-08drm/amd/display: Fix DPIA outbox timeout after S3/S4/resetNicholas Kazlauskas1-1/+6
[Why] The HW interrupt gets disabled after S3/S4/reset so we don't receive notifications for HPD or AUX from DMUB - leading to timeout and black screen with (or without) DPIA links connected. [How] Re-enable the interrupt after S3/S4/reset like we do for the other DC interrupts. Guard both instances of the outbox interrupt enable or we'll hang during restore on ASIC that don't support it. Fixes: 6eff272dbee7ad ("drm/amd/display: Fix DPIA outbox timeout after GPU reset") Reviewed-by: Jude Shih <Jude.Shih@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@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 Suarez3-14/+9
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>
2021-12-07drm/amdgpu: update drm_display_info correctly when the edid is readClaudio Suarez1-2/+1
drm_display_info is updated by drm_get_edid() or drm_connector_update_edid_property(). In the amdgpu driver it is almost always updated when the edid is read in amdgpu_connector_get_edid(), but not always. Change amdgpu_connector_get_edid() and amdgpu_connector_free_edid() to keep drm_display_info updated. 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/amd/display: Fix out of bounds access on DNC31 stream encoder regsNicholas Kazlauskas1-1/+2
[Why] During dcn31_stream_encoder_create, if PHYC/D get remapped to F/G on B0 then we'll index 5 or 6 into a array of length 5 - leading to an access violation on some configs during device creation. [How] Software won't be touching PHYF/PHYG directly, so just extend the array to cover all possible engine IDs. Even if it does by try to access one of these registers by accident the offset will be 0 and we'll get a warning during the access. Fixes: 2fe9a0e1173f ("drm/amd/display: Fix DCN3 B0 DP Alt Mapping") Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Reduce stack usageAric Cyr1-4/+4
Reduce stack usage by moving an unnecessary structure copy to a pointer. Reviewed-by: Joshua Aberback <Joshua.Aberback@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>
2021-12-07drm/amd/display: Query DMCUB for dp alt statusNicholas Kazlauskas2-38/+88
[Why] To avoid hanging RDPCSPIPE when INTERCEPTB isn't set. DMCUB owns control of that bit so DMCUB should manage returning the information driver needs for link encoder control. [How] Add a new DMCUB command to return dp alt disable and dp4 information. Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: [FW Promotion] Release 0.0.96Anthony Koo1-2/+2
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: add a debug option to force dp2 lt fallback methodWenjing Liu2-3/+7
[why] A debug option is needed to temporarily force dp2 new link training fallback method for debugging purpose. Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Rename a struct field to describe a cea component betterOliver Logush2-2/+2
[why] Need to fix the code so it does not use reserved keywords [how] Change the total_length member of the cea struct Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Oliver Logush <oliver.logush@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Adding dpia debug bits for hpd delayMeenakshikumar Somasundaram1-1/+2
[Why] Need to have dpia debug bits for configuring hpd delay. [How] Added hpd_delay_in_ms variable in dpia_debug_options. Reviewed-by: Jimmy Kizito <Jimmy.Kizito@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: meenakshikumar somasundaram <meenakshikumar.somasundaram@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Move link_enc init logic to DCJude Shih3-9/+20
[Why] We shouldn't be accessing res_pool funcs from DM level, therefore, we should create API and let the flow be done in DC level. [How] We create new interface dp_get_link_enc to access and get the correct link_enc Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Jude Shih <shenshih@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Fix bug in debugfs crc_win_update entryWayne Lin1-1/+4
[Why] crc_rd_wrk shouldn't be null in crc_win_update_set(). Current programming logic is inconsistent in crc_win_update_set(). [How] Initially, return if crc_rd_wrk is NULL. Later on, we can use member of crc_rd_wrk safely. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 9a65df193108 ("drm/amd/display: Use PSP TA to read out crc") Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: prevent reading unitialized linksMikita Lipski1-0/+2
[why/how] The function can be called on boot or after suspend when links are not initialized, to prevent it guard it with NULL pointer check Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Added Check For dc->res_poolJarif Aftab1-1/+1
[WHY] -To ensure dc->res_pool has been initialized [HOW] -Check if dc->res_pool is true in the if statement Reviewed-by: Martin Leung <Martin.Leung@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Jarif Aftab <jaraftab@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Prevent PSR disable/reenable in HPD IRQWyatt Wood1-5/+6
[Why] When HPD IRQ occurs, it triggers a PSR disable and reenable directly through dc layer. Since it does not pass through the power layer, the layer that tracks whether PSR is enabled or disabled and which masks are set, this layer is now out of sync with the real PSR state in FW. Theoretically PSR can be enabled during hw programming sequences or any other situation where we must disable PSR. [How] Check if PSR is enabled before doing PSR disable/reenable. Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Fix DPIA outbox timeout after S3/S4/resetNicholas Kazlauskas1-1/+6
[Why] The HW interrupt gets disabled after S3/S4/reset so we don't receive notifications for HPD or AUX from DMUB - leading to timeout and black screen with (or without) DPIA links connected. [How] Re-enable the interrupt after S3/S4/reset like we do for the other DC interrupts. Guard both instances of the outbox interrupt enable or we'll hang during restore on ASIC that don't support it. Fixes: 524a0ba6fab955 ("drm/amd/display: Fix DPIA outbox timeout after GPU reset") Reviewed-by: Jude Shih <Jude.Shih@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Add W/A for PHY tests with certain LTTPRGeorge Shen1-2/+70
[Why] Certain LTTPR require output VS/PE to be explicitly set during PHY test automation. [How] Add vendor-specific sequence to set LTTPR output VS/PE. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: George Shen <George.Shen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-07drm/amd/display: Apply LTTPR workarounds to non-transparent modeGeorge Shen1-4/+5
[Why] Some of the vendor-specific workarounds added for transparent mode also need to be applied to non-transparent mode in order to succeed link training consistently. [How] Remove transparent mode check for the required workarounds. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: George Shen <George.Shen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-02drm/amd/display: Use oriented source size when checking cursor scalingVlad Zahorodnii1-8/+27
dm_check_crtc_cursor() doesn't take into account plane transforms when calculating plane scaling, this can result in false positives. For example, if there's an output with resolution 3840x2160 and the output is rotated 90 degrees, CRTC_W and CRTC_H will be 3840 and 2160, respectively, but SRC_W and SRC_H will be 2160 and 3840, respectively. Since the cursor plane usually has a square buffer attached to it, the dm_check_crtc_cursor() will think that there's a scale factor mismatch even though there isn't really. This fixes an issue where kwin fails to use hardware plane transforms. Changes since version 1: - s/orientated/oriented/g Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Vlad Zahorodnii <vlad.zahorodnii@kde.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-01drm/amd/display: add connector type check for CRC source setPerry Yuan1-0/+8
[Why] IGT bypass test will set crc source as DPRX,and display DM didn`t check connection type, it run the test on the HDMI connector ,then the kernel will be crashed because aux->transfer is set null for HDMI connection. This patch will skip the invalid connection test and fix kernel crash issue. [How] Check the connector type while setting the pipe crc source as DPRX or auto,if the type is not DP or eDP, the crtc crc source will not be set and report error code to IGT test,IGT will show the this subtest as no valid crtc/connector combinations found. 116.779714] [IGT] amd_bypass: starting subtest 8bpc-bypass-mode [ 117.730996] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 117.731001] #PF: supervisor instruction fetch in kernel mode [ 117.731003] #PF: error_code(0x0010) - not-present page [ 117.731004] PGD 0 P4D 0 [ 117.731006] Oops: 0010 [#1] SMP NOPTI [ 117.731009] CPU: 11 PID: 2428 Comm: amd_bypass Tainted: G OE 5.11.0-34-generic #36~20.04.1-Ubuntu [ 117.731011] Hardware name: AMD CZN/, BIOS AB.FD 09/07/2021 [ 117.731012] RIP: 0010:0x0 [ 117.731015] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [ 117.731016] RSP: 0018:ffffa8d64225bab8 EFLAGS: 00010246 [ 117.731017] RAX: 0000000000000000 RBX: 0000000000000020 RCX: ffffa8d64225bb5e [ 117.731018] RDX: ffff93151d921880 RSI: ffffa8d64225bac8 RDI: ffff931511a1a9d8 [ 117.731022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 117.731023] CR2: ffffffffffffffd6 CR3: 000000010d5a4000 CR4: 0000000000750ee0 [ 117.731023] PKRU: 55555554 [ 117.731024] Call Trace: [ 117.731027] drm_dp_dpcd_access+0x72/0x110 [drm_kms_helper] [ 117.731036] drm_dp_dpcd_read+0xb7/0xf0 [drm_kms_helper] [ 117.731040] drm_dp_start_crc+0x38/0xb0 [drm_kms_helper] [ 117.731047] amdgpu_dm_crtc_set_crc_source+0x1ae/0x3e0 [amdgpu] [ 117.731149] crtc_crc_open+0x174/0x220 [drm] [ 117.731162] full_proxy_open+0x168/0x1f0 [ 117.731165] ? open_proxy_open+0x100/0x100 BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1546 Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Perry Yuan <Perry.Yuan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-01drm/amd/display: Add work around for tunneled MST.Jimmy Kizito4-11/+30
[Why] Certain USB4 docks do not seem to be able to handle disabling DSC once it has been enabled on an MST stream. This can result in blank displays. [How] As a work around, always enable DSC on docks exhibiting this issue. The flag to indicate the use of DSC for MST streams on a USB4 dock is set during detection of the dock and only cleared when the USB4 dock is disconnected. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-01drm/amd/display: Fix for the no Audio bug with Tiled DisplaysMustapha Ghaddar1-0/+4
[WHY] It seems like after a series of plug/unplugs we end up in a situation where tiled display doesnt support Audio. [HOW] The issue seems to be related to when we check streams changed after an HPD, we should be checking the audio_struct as well to see if any of its values changed. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Mustapha Ghaddar <mustapha.ghaddar@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-01drm/amd/display: Clear DPCD lane settings after repeater trainingShen, George1-1/+1
[Why] VS and PE requested by repeater should not persist for the sink. [How] Clear DPCD lane settings after repeater link training finishes. Reviewed-by: Wesley Chalmers <wesley.chalmers@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: George Shen <George.Shen@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-12-01drm/amd/display: Allow DSC on supported MST branch devicesNicholas Kazlauskas1-4/+16
[Why] When trying to lightup two 4k60 non-DSC displays behind a branch device that supports DSC we can't lightup both at once due to bandwidth limitations - each requires 48 VCPI slots but we only have 63. [How] The workaround already exists in the code but is guarded by a CONFIG that cannot be set by the user and shouldn't need to be. Check for specific branch device IDs to device whether to enable the workaround for multiple display scenarios. Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@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> Cc: stable@vger.kernel.org