summaryrefslogtreecommitdiff
path: root/drivers
AgeCommit message (Collapse)Author
2026-07-28drm/amd/display: add KUnit tests for DPCD poweroff delayAlex Hung
[WHAT] Add KUnit tests for amdgpu_dm_apply_delay_after_dpcd_poweroff covering the NULL-sink early return, the zero-wait skip path, and the non-zero wait interval. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for stutter quirkAlex Hung
[WHAT] Add KUnit tests for dm_should_disable_stutter covering a full quirk match, a non-matching device, and a partial match that differs only in the PCI revision. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for per-frame master syncAlex Hung
[WHAT] Add KUnit tests for dm_enable_per_frame_crtc_master_sync covering the single-stream no-op, the two-stream master selection with trigger parameters, and the NULL-stream skip path. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for freesync configAlex Hung
[WHAT] Add KUnit tests for get_freesync_config_for_crtc and reset_freesync_config_for_crtc using a shared connector/crtc/stream fixture. Cover the writeback early return, the not-capable and out-of-range unsupported paths, the active-variable, inactive and active-fixed states, and the config reset. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for HDCP state diffingAlex Hung
[WHAT] Add KUnit tests for is_content_protection_different using a shared connector/crtc fixture. Cover the content-type change, ENABLED->DESIRED re-enable (with and without modeset), UNDESIRED and DESIRED steady states, the update_hdcp hot-plug and stream re-enable paths, and the S3/DESIRED/UNDESIRED enable transitions. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for DM stream scalingAlex Hung
[WHAT] Add KUnit tests for the stream scaling path: a disable-underscan case for is_scaling_state_different, and coverage of amdgpu_dm_update_stream_scaling_settings across the full-screen default, RMX_FULL, RMX_ASPECT pillarbox/letterbox, RMX_CENTER and underscan paths. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for DM atomic state helpersAlex Hung
[WHAT] Add KUnit tests for the DM atomic private-state accessors (dm_atomic_get_new_state, dm_atomic_destroy_state), the native cursor-mode selector (dm_should_update_native_cursor) and amdgpu_dm_smu_write_watermarks_table. Cover the empty and matching private-object lookups, the NULL-context destroy path, the NULL, native and overlay cursor-mode paths, and the non-Navi1x watermark table early return. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for DM CRTC vblank/scanoutAlex Hung
[WHAT] Add KUnit tests for the DM CRTC helpers: the no-writeback and non-pending writeback paths of amdgpu_dm_crtc_complete_writeback, the out-of-range and no-stream paths of dm_vblank_get_counter, and the invalid-CRTC and no-stream paths of dm_crtc_get_scanoutpos. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add KUnit tests for DM IP-block callbacksAlex Hung
[WHAT] Add KUnit coverage for the simple amdgpu_dm IP-block callbacks (is_idle, wait_for_idle, soft_reset, set_clockgating_state, set_powergating_state and the bandwidth_update display hook) by asserting their placeholder return values. Also add the shared test include block used by the amdgpu_dm test suite. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Test plane colorop pipeline updateAlex Hung
[WHAT] Add KUnit coverage for the colorop-pipeline path of amdgpu_dm_update_plane_color_mgmt(). Test-local helpers fabricate a linked colorop pipeline so the update path can be exercised end to end: a fully bypassed pipeline succeeds, a pipeline missing the multiplier or the 3x4 op falls back to defaults, and a pipeline with no 3D LUT hardware skips the 3D ops. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Test plane color management updateAlex Hung
[WHAT] Add KUnit coverage for the legacy paths of amdgpu_dm_update_plane_color_mgmt(). Using the shared color-update fixture, the tests cover the bad 3D LUT size early failure, the default fallback path, implicit CRTC degamma mapping, color caps taken from the DC context, and a plane CTM mapping to the DPP gamut remap matrix. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Test CRTC color management updateAlex Hung
[WHAT] Add KUnit coverage for amdgpu_dm_check_crtc_color_mgmt() and amdgpu_dm_update_crtc_color_mgmt(). A shared color-update fixture (adev/DC, atomic state, CRTC/stream and plane state) backs the tests: the check path succeeds with no CRTC LUTs, and the update path leaves the stream gamut remap bypassed without a CTM and enables it when a CRTC CTM is present. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Test plane colorop helper walkersAlex Hung
[WHAT] Add KUnit coverage for the per-colorop plane helpers __set_dm_plane_colorop_multiplier(), __set_dm_plane_colorop_3x4_matrix() and __set_dm_plane_colorop_degamma(). A single-colorop atomic-state fixture drives each helper: the multiplier programs hdr_mult, the 3x4 matrix enables gamut remap (and rejects a wrong blob length), and the degamma 1D curve maps to a predefined transfer function (and rejects an unsupported curve). Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Test color mod init and 3D LUT sizeAlex Hung
[WHAT] Add KUnit coverage for amdgpu_dm_init_color_mod() and amdgpu_dm_verify_lut3d_size(). init_color_mod is a smoke test that the x-points distribution is set up without crashing. The verify_lut3d_size tests build adev/DC fixtures with and without the 3D LUT capability and confirm that correct shaper and 3D LUT blob sizes succeed while mismatched sizes return -EINVAL. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Split DPMS ON into partsDominik Kaszewski
[Why] Ongoing optimization efforts require splitting DPMS ON around enable_link, in order to enable running multiple sequences in parallel. [How] * Split link_set_dpms_on across enable_link * Add return value indicating whether the programming sequence succeeded and/or run to the end. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add DWB validation support to DML2.1 wrapperDillon Varone
[WHY&HOW] DML2.1 wrapper was lacking translation for DWB. This change adds the necessary translation for DWB validation and programming support. Reviewed-by: Austin Zheng <austin.zheng@amd.com> Signed-off-by: Dillon Varone <Dillon.Varone@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: fix debug flags assignment in dmub_replay.cRobin Chen
[WHY] Fix incorrect casting of debug flags to uint16_t, which could truncate the value. Reviewed-by: ChunTao Tso <chuntao.tso@amd.com> Signed-off-by: Robin Chen <robin.chen@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add EDID management tests for connectorBhawanpreet Lakha
Add KUnit coverage for hdmi_cec_unset_edid(), create_eml_sink() and handle_edid_mgmt(): unset edid with no notifier, eml sink with no edid, and DP vs non-DP edid management link caps handling. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add encoder helper tests for connectorBhawanpreet Lakha
Add KUnit coverage for the encoder helpers dm_encoder_helper_disable() and dm_encoder_helper_atomic_check(): disable no-op, eDP native keeps scaling, LVDS non-native enables scaling, and the non-MST zero return. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add destroy tests for connectorBhawanpreet Lakha
Add KUnit coverage for amdgpu_dm_connector_destroy(): minimal teardown plus releasing the dc_sink and dc_em_sink references. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add register and unregister tests for connectorBhawanpreet Lakha
Add KUnit coverage for amdgpu_dm_connector_late_register() and amdgpu_dm_connector_unregister(): non-DP late register succeeds and non-DP unregister is a no-op. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add detect and poll tests for connectorBhawanpreet Lakha
Add KUnit coverage for amdgpu_dm_connector_detect() and amdgpu_dm_connector_poll(): force on (analog/digital), force off, sink present/absent, and the DAC-load cached status path. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add stream creation tests for connectorBhawanpreet Lakha
Add KUnit coverage for create_stream_for_sink(): fake sink success, dm context setup, virtual signal handling, scaling source, and reuse of an existing sink. Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Replace amdgpu_dm_kunit_helpers.h with dm_helpers.hBhawanpreet Lakha
Drop the amdgpu_dm_kunit_helpers.h include across the amdgpu_dm source files and use dm_helpers.h instead Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add updated MCIF ARB register definitionsDillon Varone
[WHY&HOW] DCN4+ use a new structure for MCIF arbiter registers. Reviewed-by: Austin Zheng <austin.zheng@amd.com> Signed-off-by: Dillon Varone <Dillon.Varone@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Fix DP LT failure loggingIlya Bakoulin
[Why/How] The final DP LT failure meant to be logged as DC warning is skipped due to a break statement above. Move logging up to make sure we don't miss LT fail events. Reviewed-by: George Shen <george.shen@amd.com> Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Refactor DPP_SET_OUTPUT_TRANSFER_FUNC to drop pipe_ctxTomasz Siemek
[why] Pipe_ctx shouldn't be passed as block sequence block parameter. [how] Adjust arguments for set_output_transfer_func and implementations. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Tomasz Siemek <tomasz.siemek@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Refactor DPP_PROGRAM_GAMUT_REMAP to drop pipe_ctx paramTomasz Siemek
[why] Pipe_ctx shouldn't be passed as block sequence block parameter. [how] - Adjust program_gamut_remap_params struct. - Adjust program_gamut_remap interface and implementations. - Adjust program_gamut_remap callsites to match new signature. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Tomasz Siemek <tomasz.siemek@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Drop CONFIG_DRM_AMD_DC_DCN4_2 from 3dlut codeTomasz Siemek
[why] CONFIG_DRM_AMD_DC_DCN4_2 were readded to DAL by mistake resulting in parts of dcn42 3dlut code not being compiled. [how] Remove readded CONFIG_DRM_AMD_DC_DCN4_2 guards. Reviewed-by: Rafal Ostrowski <rafal.ostrowski@amd.com> Signed-off-by: Tomasz Siemek <tomasz.siemek@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add VBIOS bounding box KUnit testAlex Hung
[WHAT] Add a KUnit test for dm_dmub_get_vbios_bounding_box() covering the default IP-version path that returns NULL without allocating GPU memory or issuing GPINT commands. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add DMUB command sync KUnit coverageAlex Hung
[WHAT] Add KUnit coverage for the synchronous DMUB command helpers: dm_execute_dmub_cmd(), amdgpu_dm_process_dmub_aux_transfer_sync(), and amdgpu_dm_process_dmub_set_config_sync(). Cover command submission without a DC DMUB service, AUX engine-acquire failure, protocol-error propagation, the bounded reply-data copy, the zero-length reply branch, and the SET_CONFIG completed-with-unknown-error path. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add fused IO KUnit coverageAlex Hung
[WHAT] Add KUnit coverage for the DMUB fused IO helpers: the dm_dmub_aux_fused_io_callback() NULL-argument guard and the abort_fused_io() no-DMUB-service path. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add dm_dmub_hw_resume KUnit coverageAlex Hung
[WHAT] Extend KUnit coverage for dm_dmub_hw_resume() using the fake-DMUB fixtures. New cases cover the already-initialized wait path, the full reinitialization path, a failed init-state query, and an auto-load timeout, none of which require real hardware. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add dm_dmub_hw_init KUnit coverageAlex Hung
[WHAT] Add KUnit coverage for dm_dmub_hw_init() beyond the existing early-return cases. Introduce reusable fake-DMUB fixtures (fake dmub_srv/firmware, DMCU/ABM stubs, and adev builders) so the init path runs without real register access, TTM allocation, or firmware loading. New cases cover the fake-DMUB success path, unsupported hardware, BSS data copy, hardware-init failure, auto-load timeout, the APU/DPIA DCN3.5 params, the DCN3.1.x sanity-check ranges, and DMCU/ABM initialization. Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5 Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Increase HDMI AV mute wait from 2 to 3 framesRay Wu
Some HDMI sinks need additional GCP packets to properly process the mute state before the timing generator is disabled, especially after link re-establishment with HDMI 2.0 scrambling enabled. Waiting for only 2 frames is insufficient for certain monitor firmware, resulting in garbled display output on resume from suspend. Increase the AV mute wait in dcn30_set_avmute() from 2 to 3 frames to ensure the sink receives enough GCP packets. Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5167 Assisted-by: Cursor:Claude-Opus-4.6 Reviewed-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Ray Wu <ray.wu@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add MCIF ARB programming structuresDillon Varone
[WHY&HOW] Adds required structures to configure MCIF ARB for DWB. Signed-off-by: Dillon Varone <Dillon.Varone@amd.com> Reviewed-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Add Writeback Watermarks and Latency FieldsAustin Zheng
Add fields that can used for writeback watermarks and latency margin Signed-off-by: Austin Zheng <Austin.Zheng@amd.com> Reviewed-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: Correct pipe usage for populating stream configDillon Varone
[WHY&HOW] Was incorrectly using stream index to index pipes, when should have been using callback to get otg master pipe for stream. Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Dillon Varone <Dillon.Varone@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amdgpu: Resolve VM through DRM PASID ownershipSrinivasan Shanmugam
Allocate DRM PASIDs with fpriv and resolve VM lookup users through: PASID -> fpriv -> VM This preserves the root BO reference and revalidation flow in amdgpu_vm_lock_by_pasid(). The obsolete per-device vm_manager.pasids mapping is removed by the following patch in this series. v6: - Allocate and publish the DRM PASID after amdgpu_vm_init() completes. - Assign the allocated PASID to vm->pasid in the DRM open path. - Unpublish PASID ownership before tearing down the VM in both the open-failure and normal file-close paths. v5: - Delay DRM PASID allocation until after amdgpu_vm_init() completes. v4: - Allocate DRM PASIDs with fpriv directly. - Squash ownership registration and PASID lookup conversion. Cc: Alex Deucher <alexander.deucher@amd.com> Suggested-by: Christian König <christian.koenig@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amdgpu: Allow PASID allocator to store fpriv ownerSrinivasan Shanmugam
AMDGPU already has a global PASID xarray used for PASID allocation. Allow amdgpu_pasid_alloc() to optionally store the owning DRM file-private object directly. Initial callers pass NULL. A later patch in this series passes the DRM file-private object for DRM PASIDs. This prepares for using: PASID -> fpriv -> VM instead of: PASID -> VM Clear the stored owner from amdgpu_pasid_free_delayed() before waiting for outstanding fences so PASID lookups cannot observe a stale fpriv while the PASID itself is pending delayed release. v6: - Correct the PASID allocator kernel-doc to refer to the XArray cyclic allocator. - Document that PASID owner lookup may return NULL and that the returned fpriv remains valid only while the PASID lock is held. - No code changes. Retain Christian's Reviewed-by tag. v5: - Store NULL instead of xa_mk_value(0) for ownerless PASIDs. - Simplify owner clearing by unconditionally storing NULL. v4: - Add fpriv as an optional parameter to amdgpu_pasid_alloc(). - Drop separate amdgpu_pasid_set_fpriv()/clear_fpriv() helpers. - Clear PASID owner from amdgpu_pasid_free_delayed(). Cc: Alex Deucher <alexander.deucher@amd.com> Suggested-by: Christian König <christian.koenig@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amdgpu/ras: Add debug mask to disable CE logs for unirasCe Sun
Add debug mask to disable kernel logs of RAS correctable errors, including both ACA and CE error counter kernel messages. Signed-off-by: Ce Sun <cesun102@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amdgpu/imu11: WARN() rather than BUG()Alex Deucher
There's no need to crash the kernel for this case. Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amd/display: add dcn42b specific SMU clock table readGabe Teeger
[Why] On DCN42B the SMU reports its DpmClocks table in a different layout than DCN42, with extra clock domains. The clk_mgr was parsing it with the DCN42 layout. [How] Add a DCN42B DpmClocks struct and a dcn42b_get_smu_clocks() that allocates and parses the DCN42B layout, reusing the shared dcn42 helpers so DCN42 is untouched. Populate DCF, SOC, DISP, DPP and FCLK levels and the memory pstate table. Reviewed-by: Charlene Liu <charlene.liu@amd.com> Signed-off-by: Gabe Teeger <gabe.teeger@amd.com> Signed-off-by: Matthew Stewart <matthew.stewart2@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-28drm/amdgpu: skip clearing empty freed VM list on GEM closeBob Zhou
amdgpu_vm_clear_freed() allocates an amdgpu_sync object and walks the VM reservation fences via amdgpu_sync_resv() before checking whether vm->freed has anything to clear. Return early when the list is empty to skip this overhead on a hot path (every GEM close and command submission). Signed-off-by: Bob Zhou <bobzhou2@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-07-29power: supply: sgm41542: Add SG Micro sgm41542 chargerChris Morgan
Add support for the SG Micro SGM41542 charger/boost converter. Driver was adapted from Rockchip BSP driver [1] and confirmed with vendor datasheet [2]. [1] https://github.com/rockchip-linux/kernel/blob/develop-6.6/drivers/power/supply/sgm41542_charger.c [2] https://www.sg-micro.de/rect/assets/1e8de70b-657e-4156-be68-a64fdbe8e418/SGM41541_SGM41542.pdf Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Link: https://patch.msgid.link/20260728203832.166402-3-macroalpha82@gmail.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2026-07-28i2c: qcom-geni: Add trace events for Qualcomm GENI I2C driverPraveen Talari
Add trace event definitions for the Qualcomm GENI (Generic Interface) I2C driver. These trace events enable runtime debugging and performance analysis of I2C operations. The trace events capture I2C clock configuration, interrupt status and error code and message. Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260703-add-tracepoints-for-qcom-geni-i2c-v2-2-e8bf8b178290@oss.qualcomm.com
2026-07-28i2c: qup: Propagate clock enable failuresPengpeng Hou
The QUP I2C driver treats the core and iface clocks as required resources, but qup_i2c_enable_clocks() ignores clk_prepare_enable() failures. Probe can then continue to register the I2C adapter, and runtime/system resume can return success, even when a required clock transition failed. Make the helper return an error, unwind a partially enabled clock, and propagate failures from probe and resume paths. Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260624055237.29977-1-pengpeng@iscas.ac.cn
2026-07-28i2c: qcom-cci: drop custom suspend/resume and rely on runtime PM helpersWenmeng Liu
cci_resume() unconditionally calls cci_resume_runtime() regardless of the runtime PM state. If the device is already runtime-suspended before system suspend, the clock is re-enabled while runtime_status remains RPM_SUSPENDED. As a result, pm_request_autosuspend() does not arm the timer, leaving the clock permanently enabled. Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver") Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com> Cc: <stable@vger.kernel.org> # v5.8+ Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260625-cci-v1-1-a100cda673ce@oss.qualcomm.com
2026-07-28i2c: imx: Cancel hrtimer before clearing slave pointerLiem
In i2c_imx_unreg_slave(), the slave pointer is set to NULL after disabling interrupts. However, a pending interrupt might already have started the hrtimer (i2c_imx_slave_timeout) before the pointer was cleared. If the hrtimer fires after i2c_imx->slave is set to NULL, the timer callback i2c_imx_slave_finish_op() will call i2c_imx_slave_event() with a NULL slave pointer, which results in a use-after-free / NULL pointer dereference. Fix by canceling the hrtimer and waiting for it to complete after disabling interrupts, before clearing the slave pointer. Fixes: f7414cd6923f ("i2c: imx: support slave mode for imx I2C driver") Signed-off-by: Liem <liem16213@gmail.com> Cc: <stable@vger.kernel.org> # v5.11+ Acked-by: Carlos Song <carlos.song@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260629023829.152651-3-liem16213@gmail.com
2026-07-28i2c: imx: Fix slave registration race and error handlingLiem
In i2c_imx_reg_slave(), the slave pointer was assigned before pm_runtime_resume_and_get(). If pm_runtime_resume_and_get() failed, the error path returned without clearing i2c_imx->slave, leaving it non-NULL and causing all subsequent registration attempts to fail with -EBUSY. Additionally, because this driver uses a shared IRQ, the interrupt handler i2c_imx_isr() can execute concurrently and, after acquiring slave_lock, dereference i2c_imx->slave. The previous fix attempt added a lockless i2c_imx->slave = NULL on the error path, but that could race with the ISR under the lock and still cause a NULL pointer dereference. Fix both issues by deferring the assignment of i2c_imx->slave and i2c_imx->last_slave_event to after a successful resume, and by performing the assignment inside the slave_lock critical section. This guarantees that the slave pointer is never left stale on the error path and is always valid when observed by the interrupt handler. Fixes: f7414cd6923f ("i2c: imx: support slave mode for imx I2C driver") Signed-off-by: Liem <liem16213@gmail.com> Cc: <stable@vger.kernel.org> # v5.11+ Reviewed-by: Frank Li <Frank.Li@nxp.com> Acked-by: Carlos Song <carlos.song@nxp.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260629023829.152651-2-liem16213@gmail.com
generated by cgit v1.2.3 (git 2.25.1) at 2026-09-07 11:02:53 +0000