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path: root/drivers/gpu/drm/amd
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2025-10-20drm/amdgpu: Add logic for VF ipd and VF bios to init from dynamic ↵Ellen Pan
crit_region offsets 1. Added VF logic in amdgpu_virt to init IP discovery using the offsets from dynamic(v2) critical regions; 2. Added VF logic in amdgpu_virt to init bios image using the offsets from dynamic(v2) critical regions; Signed-off-by: Ellen Pan <yunru.pan@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Reuse fw_vram_usage_* for dynamic critical region in SRIOVEllen Pan
- During guest driver init, asa VFs receive PF msg to init dynamic critical region(v2), VFs reuse fw_vram_usage_* from ttm to store critical region tables in a 5MB chunk. Signed-off-by: Ellen Pan <yunru.pan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Introduce SRIOV critical regions v2 during VF initEllen Pan
1. Introduced amdgpu_virt_init_critical_region during VF init. - VFs use init_data_header_offset and init_data_header_size_kb transmitted via PF2VF mailbox to fetch the offset of critical regions' offsets/sizes in VRAM and save to adev->virt.crit_region_offsets and adev->virt.crit_region_sizes_kb. Signed-off-by: Ellen Pan <yunru.pan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Add SRIOV crit_region_version supportEllen Pan
1. Added enum amd_sriov_crit_region_version to support multi versions 2. Added logic in SRIOV mailbox to regonize crit_region version during req_gpu_init_data Signed-off-by: Ellen Pan <yunru.pan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Updated naming of SRIOV critical region offsets/sizes with _V1 ↵Ellen Pan
suffix - This change prepares the later patches to intro _v2 suffix to SRIOV critical regions Signed-off-by: Ellen Pan <yunru.pan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: query bad page info of ras moduleYiPeng Chai
Query bad page info of ras module. V2: Update code to reuse bad page output code. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: ras module supports error injectionYiPeng Chai
ras module supports error injection. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/ras: Update function and remove redundant codeYiPeng Chai
Update function and remove redundant code: 1. Update function to prepare for internal use. 2. Remove unused function code previously prepared for ioctl. V2: Update commit message content. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/ras: Update ras command context structure nameYiPeng Chai
According to the actual usage of this structure, it is more appropriate to call it context, the structure name with ioctl is easy to cause misunderstanding. V2: Update commit message content. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Promote DC to 3.2.355Taimur Hassan
This version brings along following update: -Fix GFP_ATOMIC abuse -Fix several checkpatch issues -Set DCN32 to use update planes and stream version 3 -Write segment pointer with mot enabled for MST -Control BW allocation in FW side -Change clean dsc blocks condition in accelerated mode -Check disable_fec flag before enabling FEC Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: write segment pointer with mot enabled for mstMeenakshikumar Somasundaram
[Why] Some mst branches NAK's segment pointer writes with mot disabled. So reset of segment pointer to 0 should be performed with mot enabled. [How] Write segment pointer of mst branch devices with mot enabled. Reviewed-by: Cruise Hung <cruise.hung@amd.com> Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Control BW allocation in FW sideCruise Hung
[Why] The BW allocation feature should be controlled in FW side. [How] Pass the control bit to FW boot option. Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Cruise Hung <Cruise.Hung@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Fix misc. checkpatch issuesIlya Bakoulin
[Why/How] Addresses various checkpatch issues related to the HWSS block sequence function change. Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Change clean dsc blocks condition in accelerated modeLewis Huang
[Why] On system resume from S4 with the lid closed, DSC was not cleared because DPMS was already off. [How] In accelerated mode, to clean up DSC blocks if eDP dpms off is true to align the DSC and dpms state when we are not in fast boot and seamless boot. Reviewed-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Lewis Huang <Lewis.Huang@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Set DCN32 to use update planes and stream version 3Nicholas Carbones
[Why] Old minimal transition does not always wait for updates to complete before proceeding, which can lead to corruption in multi display scenarios for DCN32. [How] Set DCN32 to use update_planes_and_stream_v3 for better pipe transition handling. Reviewed-by: Dillon Varone <dillon.varone@amd.com> Signed-off-by: Nicholas Carbones <Nicholas.Carbones@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Check disable_fec flag before enabling fec.Meenakshikumar Somasundaram
[Why] dc debug option disable_fec was not working. [How] Check dc debug option disable_fec flag before enabling fec in dp_should_enable_fec(). Reviewed-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Fix GFP_ATOMIC abuseAurabindo Pillai
There is a lot GFP_ATOMIC allocations which are not in interrupt context. Change them to use GFP_KERNEL instead. Reviewed-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Tom Chung <chiahsuan.chung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Enable ras moduleYiPeng Chai
Enable ras module, disabled by default. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd: Fix set but not used warningsTiezhu Yang
There are many set but not used warnings under drivers/gpu/drm/amd when compiling with the latest upstream mainline GCC: drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c:305:18: warning: variable ‘p’ set but not used [-Wunused-but-set-variable=] drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h:103:26: warning: variable ‘internal_reg_offset’ set but not used [-Wunused-but-set-variable=] ... drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h:164:26: warning: variable ‘internal_reg_offset’ set but not used [-Wunused-but-set-variable=] ... drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:445:13: warning: variable ‘pipe_idx’ set but not used [-Wunused-but-set-variable=] drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:875:21: warning: variable ‘pipe_idx’ set but not used [-Wunused-but-set-variable=] Remove the variables actually not used or add __maybe_unused attribute for the variables actually used to fix them, compile tested only. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Add ras module ip block to amdgpu discoveryYiPeng Chai
Add ras module ip block to amdgpu discovery. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: check save count before RAS bad page savingTao Zhou
It's possible that unit_num is larger than 0 but save_count is zero, since we do get bad page address but the address is invalid. Check unit_num and save_count together. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Candice Li <candice.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: add the kernel docs for alloc/free/valid rangeSunil Khatri
Add kernel docs for the functions related to hmm_range. Documents added for functions: amdgpu_hmm_range_valid amdgpu_hmm_range_alloc amdgpu_hmm_range_free Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: use GPU_HDP_FLUSH for sriovVictor Zhao
Currently SRIOV runtime will use kiq to write HDP_MEM_FLUSH_CNTL for hdp flush. This register need to be write from CPU for nbif to aware, otherwise it will not work. Implement amdgpu_kiq_hdp_flush and use kiq to do gpu hdp flush during sriov runtime. v2: - fallback to amdgpu_asic_flush_hdp when amdgpu_kiq_hdp_flush failed - add function amdgpu_mes_hdp_flush v3: - changed returned error Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Victor Zhao <Victor.Zhao@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Add kiq hdp flush callbacksVictor Zhao
Add kiq hdp flush callbacks for gfx ips to support gpu hdp flush when no ring presents Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Victor Zhao <Victor.Zhao@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd: Add a helper to tell whether an IP block HW is enabledMario Limonciello
There is already a helper for telling if a block is valid, but if IP handling wants to check if it's HW is enabled no such helper exists. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Fix vram_usage underflowAlysa Liu
vram_usage was subtracting non-vram memory size, which caused it to become negative. Signed-off-by: Alysa Liu <Alysa.Liu@amd.com> Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/pm: Avoid writing nulls into `pp_od_clk_voltage`Ilya Zlobintsev
Calling `smu_cmn_get_sysfs_buf` aligns the offset used by `sysfs_emit_at` to the current page boundary, which was previously directly returned from the various `print_clk_levels` implementations to be added to the buffer position. Instead, only the relative offset showing how much was written to the buffer should be returned, regardless of how it was changed for alignment purposes. Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Ilya Zlobintsev <ilya.zlobintsev@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amdgpu: Use memset32 for IB paddingTvrtko Ursulin
Use memset32 instead of open coding it, just because it is that bit nicer. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Promote DC to 3.2.354Taimur Hassan
Display Core v3.2.354 release highlights: * DCN35 dispclk, dppclk & other fixes * DCN401 cursor offload fix * Add new block seqeunce-building/executing functions * null ptr fixes * DPIA hpd fix * debug improvements * Fix performance regression from full updates * Firmware Release 0.1.31.0 Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: [FW Promotion] Release 0.1.31.0Taimur Hassan
Release highlights: DCN35/351/36: * fix video lag with replay * DPP DTO programming sequence fix * IPS exit programming sequence fix DCN 3.1.5: * fix video lag with replay Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: add new block sequence-building/executing functionsIlya Bakoulin
[Why/How] Create functions for building/executing HW block programming steps Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: add additional hdcp tracesWenjing Liu
[why] Current hdcp trace only tracks hdcp errors. We need to expand the trace structure for more tracing information. [how] Add following traces for hdcp1: - attempt_count - downstream_device_count Add following traces for hdcp2: - attempt_count - downstream_device_count - hdcp1_device_downstream - hdcp2_legacy_device_downstream Reviewed-by: Sung Lee <sung.lee@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Fix performance regression from full updatesDominik Kaszewski
[Why] full_update_required is too strict at update_planes_and_stream_state, causing a performance regression due to too many updates being full. [How] * Carve out weak version of full_update_required for use inside update_planes_and_stream_state. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Remove dc state from check_updateDominik Kaszewski
[Why] dc_check_update_surfaces_for_stream should not have access to entire DC, especially not a mutable one. Concurrent checks should be able to run independently of one another, without risk of changing state. [How] * Remove access to dc state other than debug and capacity. * Move some checks from DC to DM caller. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: use GFP_NOWAIT for allocation in interrupt handlerAurabindo Pillai
schedule_dc_vmin_vmax() is called by dm_crtc_high_irq(). Hence, we cannot have the former sleep. Use GFP_NOWAIT for allocation in this function. Fixes: c210b757b400 ("drm/amd/display: fix dmub access race condition") Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Add sink/link debug logsAurabindo Pillai
Add some extra logs to better help triage blackscreen issues. * Dump all the links to see if they have sinks associated. * Print the edid manufacturer & product id associated with a stream that was just created. Reviewed-by: Jerry Zuo <jerry.zuo@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Move all DCCG RCG into HWSS root_clock_controlOvidiu Bunea
[why & how] Enabling/disabling DCCG RCG should be done as a last-level step when enabling/disable blocks. This is handled by HWSS root_clock_control already during optimize_bandwidth. However, dccg35_dpp_root_clock_control was missing the RCG enable call on the disable path. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Ovidiu Bunea <ovidiu.bunea@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: update perfmon measurement interfacesWenjing Liu
[how] The commit update interfaces for dchubbub perfmon meansurement to better reflect our requirements. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: fix dppclk rcg poweron checkYihan Zhu
[WHY & HOW] dppclk rcg power down will flip the poweron flag in the cache to cause dppclk rcg will never run the rcg ungate sequence in some condition. Wait 10us to let dpp dto fully ramp. Reviewed-by: Ovidiu (Ovi) Bunea <ovidiu.bunea@amd.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: not skip hpd irq for bw alloc modePeichen Huang
[WHY] Driver only process hpd irq when a branch device or when the link is established. It would cause some irq for bw_alloc mode of dp tunneling are ignored. [HOW] Driver should process hpd irq if bw_alloc and dp tunneling are enabled. Reviewed-by: Cruise Hung <cruise.hung@amd.com> Signed-off-by: Peichen Huang <PeiChen.Huang@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Update spacing in structAlvin Lee
Update spacing so that fields with longer name will still be aligned correctly (new fields to be added). Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Update DCN401 path for cursor offloadAlvin Lee
[Description] The DCN401 cursor offload path needs to take into account use_mall_for_cursor, and also need to ensure the dcn32 function assigns the cursor cache fields (DCN401 uses the dcn32 implementation). Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: increase max link count and fix link->enc NULL pointer accessCharlene Liu
[why] 1.) dc->links[MAX_LINKS] array size smaller than actual requested. max_connector + max_dpia + 4 virtual = 14. increase from 12 to 14. 2.) hw_init() access null LINK_ENC for dpia non display_endpoint. Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Reviewed-by: Chris Park <chris.park@amd.com> Signed-off-by: Charlene Liu <Charlene.Liu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Rework HDMI data channel readsRelja Vojvodic
Fix the HDMI data channel reads to respect scdc_present field to pass compliance test. Reviewed-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Relja Vojvodic <rvojvodi@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: fix typo in display_mode_core_structs.hAdi Gollamudi
Fix a typo in a comment, change "enviroment" to "environment" in drivers/gpu/drm/amd/display/dc/dml2/display_mode_core_structs.h Signed-off-by: Aditya Gollamudi <adigollamudi@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: add dccg dfs mask defCharlene Liu
[why] add some register masks for DCCG Reviewed-by: Yihan Zhu <yihan.zhu@amd.com> Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Charlene Liu <Charlene.Liu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Remove unused field in DMLAlvin Lee
Remove unused fields. Reviewed-by: Austin Zheng <austin.zheng@amd.com> Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Fix NULL pointer dereferenceMeenakshikumar Somasundaram
[Why] On a mst branch with multi display setup, dc context is obselete after updating the first stream. Referencing the same dc context for the next stream update to fetch dc pointer leads to NULL pointer dereference. [How] Get the dc pointer from the link rather than context. Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Charlene Liu <charlene.liu@amd.com> Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: add dispclk ramping to dcn35.Charlene Liu
[why] this is a required logic based on HW programming guide. tested/ported on dcn401. Reviewed-by: Yihan Zhu <yihan.zhu@amd.com> Signed-off-by: Charlene Liu <Charlene.Liu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20drm/amd/display: Add debug option to override EASF scaler tapsSamson Tam
[Why & How] Add new option override_easf to use in_taps instead of internal taps policy for debugging Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Samson Tam <Samson.Tam@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
generated by cgit v1.2.3 (git 2.0.4) at 2025-12-25 18:14:08 +0000