linux-next.git/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile, branch master

drm/amd/display: Extract connector and encoder code to amdgpu_dm_connector

2026-06-17T20:15:39+00:00

Move connector lifecycle functions (init, detect, mode validation, property handling, EDID parsing, hotplug processing) and encoder functions (init, destroy, atomic_check, helper_funcs) from amdgpu_dm.c to amdgpu_dm_connector.c. No functional change intended. Assisted-by: Copilot:Claude-Opus-4.6 Reviewed-by: Bhawanpreet Lakha Signed-off-by: Alex Hung Signed-off-by: Chenyu Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Extract DMUB code to amdgpu_dm_dmub

2026-06-17T20:15:26+00:00

Move DMUB-related functions and firmware defines from amdgpu_dm.c into new amdgpu_dm_dmub.c and amdgpu_dm_dmub.h files to reduce the size of amdgpu_dm.c and improve code organization. No functional change intended. Assisted-by: Copilot:Claude-Opus-4.6 Reviewed-by: Bhawanpreet Lakha Signed-off-by: Alex Hung Signed-off-by: Chenyu Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Extract audio code to amdgpu_dm_audio

2026-06-17T20:15:20+00:00

Move audio component, init/fini, ELD notification, fill_audio_info, and commit_audio functions from amdgpu_dm.c into a dedicated amdgpu_dm_audio.c file with its own header. No functional change intended. Assisted-by: Copilot:Claude-Opus-4.6 Reviewed-by: Bhawanpreet Lakha Signed-off-by: Alex Hung Signed-off-by: Chenyu Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Extract backlight code to amdgpu_dm_backlight

2026-06-17T20:14:47+00:00

Move backlight-related functions from amdgpu_dm.c into a new amdgpu_dm_backlight.c file to improve code organization and reduce the size of the monolithic amdgpu_dm.c. No functional change intended. Assisted-by: Copilot:Claude-Opus-4.6 Reviewed-by: Bhawanpreet Lakha Signed-off-by: Alex Hung Signed-off-by: Chenyu Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Enable gcov coverage for amdgpu_dm KUnit builds

2026-06-03T17:31:41+00:00

[Why & How] Add GCOV_PROFILE := y to amdgpu_dm/Makefile under the CONFIG_DRM_AMD_DC_KUNIT_TEST guard so coverage instrumentation is only applied during KUnit builds, not all amdgpu_dm builds. Add coverage config options (CONFIG_GCOV, CONFIG_DEBUG_INFO, CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT, CONFIG_DEBUG_KERNEL) to tests/.kunitconfig so the kunit.py runner enables the kernel coverage configuration automatically. Assisted-by: Copilot:Claude-Sonnet-4.6 Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Hung Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add KUnit test for CRC function

2026-05-19T15:54:36+00:00

DM CRC parsing functions are an easy candidate for exploring the use of KUnit unit-testing frameworks. Add a few tests for the same. The test file and .kunitconfig are placed under amdgpu_dm/tests/ to follow the convention of keeping test code separate from production sources. Assisted-by: Copilot:Claude-Opus-4.6 Reviewed-by: Harry Wentland Signed-off-by: Aurabindo Pillai Signed-off-by: Alex Hung Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add Idle state manager(ISM)

2026-03-30T19:14:05+00:00

[Why] Rapid allow/disallow of idle optimization calls, whether it be IPS or self-refresh features, can end up using more power if actual time-in-idle is low. It can also spam DMUB command submission in a way that prevents it from servicing other requestors. [How] Introduce the Idle State Manager (ISM) to amdgpu. It maintains a finite state machine that uses a hysteresis to determine if a delay should be inserted between a caller allowing idle, and when the actual idle optimizations are programmed. A second timer is also introduced to enable static screen optimizations (SSO) such as PSR1 and Replay low HZ idle mode. Rapid SSO enable/disable can have a negative power impact on some low hz video playback, and can introduce user lag for PSR1 (due to up to 3 frames of sync latency). This effectively rate-limits idle optimizations, based on hysteresis. This also replaces the existing delay logic used for PSR1, allowing drm_vblank_crtc_config.disable_immediate = true, and thus allowing drm_crtc_vblank_restore(). v2: * Loosen criteria for ISM to exit idle optimizations; it failed to exit idle correctly on cursor updates when there are no drm_vblank requestors, * Document default_ism_config * Convert pr_debug to trace events to reduce overhead on frequent codepaths * checkpatch.pl fixes Link: https://gitlab.freedesktop.org/drm/amd/-/issues/4527 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3709 Fixes: 58a261bfc967 ("drm/amd/display: use a more lax vblank enable policy for older ASICs") Signed-off-by: Ray Wu Signed-off-by: Leo Li Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Alex Deucher

drm/amd/display: Add support for sRGB EOTF in DEGAM block

2025-11-26T22:03:34+00:00

Expose one 1D curve colorop with support for DRM_COLOROP_1D_CURVE_SRGB_EOTF and program HW to perform the sRGB transform when the colorop is not in bypass. With this change the following IGT test passes: kms_colorop --run plane-XR30-XR30-srgb_eotf The color pipeline now consists of a single colorop: 1. 1D curve colorop w/ sRGB EOTF Signed-off-by: Alex Hung Co-developed-by: Harry Wentland Signed-off-by: Harry Wentland Reviewed-by: Daniel Stone Signed-off-by: Simon Ser Link: https://patch.msgid.link/20251115000237.3561250-29-alex.hung@amd.com

drm/amd/display: Restructure DMI quirks

2025-05-13T13:30:52+00:00

[Why] DMI quirks are relatively big code that makes amdgpu_dm 200 lines larger. [How] Move DMI quirks into a dedicated source file and make all quirks variables for `struct amdgpu_display_manager`. Reviewed-by: Alex Hung Signed-off-by: Mario Limonciello Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Initialize writeback connector

2023-12-06T20:22:34+00:00

[WHAT] Create a drm_writeback_connector when connector signal equals SIGNAL_TYPE_VIRTUAL. Tested-by: Daniel Wheeler Reviewed-by: Harry Wentland Signed-off-by: Alex Hung Signed-off-by: Alex Deucher