wireguard-linux/drivers/gpu/drm/amd/display/dmub/src, branch stable

drm/amd/display: Enable DCN6 sources compilation

2026-08-06T13:53:32Z

- Add hooks in various entry points to perform hw/sw init for DCN6 asic - Add dependent changes needed to enable DCN6 asic - Update the Makefiles so that DCN6 related newly added sources are compiled Signed-off-by: Aurabindo Pillai Signed-off-by: Roman Li Reviewed-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add new sources for DCN6

2026-08-06T13:48:29Z

Add DCN6 code to DC, DML2, and DMUB Signed-off-by: Aurabindo Pillai Signed-off-by: Roman Li Reviewed-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Generalize DMUB memory flushes from host

2026-07-14T23:12:34Z

[WHY&HOW] Add DMUB service context to aid in platform abstraction when flushing memory from the host. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Dillon Varone Signed-off-by: George Zhang Signed-off-by: Alex Deucher

drm/amd/display: Add DCN42B DMUB support

2026-06-03T17:44:05Z

[Why & How] Add DMUB support for DCN42B Reviewed-by: Harry Wentland Signed-off-by: Matthew Stewart Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix type mismatches in DC and DMUB modules

2026-05-05T13:56:52Z

[Why] Address signed/unsigned comparison warnings across dc paths to keep builds warning-clean and improve type safety at comparison boundaries. Most warnings came from signed loop/index temporaries compared against unsigned counters and table sizes, plus a smaller number of mixed signed/unsigned clock, bandwidth, and geometry comparisons. [How] Aligned loop/index and bound types in the affected modules and DMUB sources, including color, freesync, power, stats, and vmid paths. Used unsigned iterators where bounds/counters are unsigned, preserved signed types where negative values are meaningful, and updated related format specifiers where type changes required it. Changes are limited to warning resolution and type alignment. No functional behavior change is intended. Reviewed-by: Dillon Varone Signed-off-by: Gaghik Khachatrian Signed-off-by: James Lin Signed-off-by: Alex Deucher

drm/amd/display: Fix Compiler warnings in dmub

2026-03-30T19:12:41Z

[Why] Resolve compiler warnings by marking unused parameters explicitly. [How] In .c and .h files, keep parameter names in signatures and add a line with`(void)param;` inside the function body Preserved function signatures and avoids breaking code paths that may reference the parameter under conditional compilation. Reviewed-by: Aric Cyr Signed-off-by: Gaghik Khachatrian Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: Fix Silence Conversion Warnings in Dmub

2026-03-30T18:54:47Z

Fix Conversion that might result in a loss of data warnings in dmub/src/: - dmub_dcn20/31/32/35/42/60/401.c: Add ASSERT(value <= 0xFF) and explicit (uint8_t) cast when storing REG_GET results into uint8_t debug struct fields. Add != 0 for bool assignments from uint32_t bitfield reads. - dmub_reg.c: Cast va_arg shift value to uint8_t with ASSERT guard before passing to set_reg_field_value_masks(). - dmub_srv.c: Widen num_pending to uint64_t to match uint64_t arithmetic; use != 0 for bool assignments from unsigned expressions. No functional change intended. Reviewed-by: Dillon Varone Signed-off-by: Gaghik Khachatrian Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: Remove check for DC_DMCUB_ENABLE on DCN42

2026-03-30T18:39:25Z

[why] DCN without DMCUB is not a supported configuration on DCN42. [how] Remove the DC_DMCUB_ENABLE fuse register check and remove the corresponding entries in the DCN42 DMUB register list. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Gabe Teeger Signed-off-by: Matthew Stewart Signed-off-by: Roman Li Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: Update dpia supported configuration

2026-03-23T18:10:58Z

[Why & How] Init a flag to track if dpia enabled previously and update that to boot options. Reviewed-by: Ovidiu Bunea Signed-off-by: Meenakshikumar Somasundaram Signed-off-by: Roman Li Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: Enable dcn42 DMUB

2026-02-23T19:28:33Z

Enable DMUB support for DCN 4.2 Signed-off-by: Roman Li Acked-by: Harry Wentland Signed-off-by: Alex Deucher