kernel.git/drivers/gpu/drm/amd/display/dc/bios, branch linux-6.14.y

drm/amd/display: fix dcn4x init failed

2025-05-29T09:13:06Z

[ Upstream commit 23ef388a84c72b0614a6c10f866ffeac7e807719 ] [why] failed due to cmdtable not created. switch atombios cmdtable as default. Reviewed-by: Alvin Lee Signed-off-by: Charlene Liu Signed-off-by: Zaeem Mohamed Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Update chip_cap defines and usage

2025-01-10T17:00:23Z

[WHY] The defines have also been updated with prefix AMD_ and atomfirmware.h has been temporarily updated with both sets of defines to allow the transition. This update is being made to standardize workaround chip_cap flags, in order to support more workaround flags in the future. [HOW] Updated EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN define, the flag is now an enum masked by EXT_DISPLAY_PATH_CAPS__EXT_CHIP_MASK. All checks for DP_FIXED_VS_EN are now performed by masking with EXT_CHIP_MASK and checking for an exact match rather than the previous bitwise AND check. Reviewed-by: Wenjing Liu Signed-off-by: Michael Strauss Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

Revert "drm/amd/display: parse umc_info or vram_info based on ASIC"

2024-11-12T22:10:40Z

This reverts commit 2551b4a321a68134360b860113dd460133e856e5. This was not the root cause. Revert. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3678 Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher Cc: aurabindo.pillai@amd.com Cc: hamishclaxton@gmail.com

drm/amd/display: Fix failure to read vram info due to static BP_RESULT

2024-11-12T22:10:40Z

The static declaration causes the check to fail. Remove it. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3678 Fixes: 00c391102abc ("drm/amd/display: Add misc DC changes for DCN401") Reviewed-by: Harry Wentland Signed-off-by: Hamish Claxton Signed-off-by: Alex Deucher Cc: aurabindo.pillai@amd.com Cc: hamishclaxton@gmail.com

drm/amd/display: parse umc_info or vram_info based on ASIC

2024-11-04T16:36:59Z

An upstream bug report suggests that there are production dGPUs that are older than DCN401 but still have a umc_info in VBIOS tables with the same version as expected for a DCN401 product. Hence, reading this tables should be guarded with a version check. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3678 Reviewed-by: Dillon Varone Signed-off-by: Aurabindo Pillai Signed-off-by: Zaeem Mohamed Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Remove unused function bios_get_vga_enabled_displays

2024-09-26T21:06:17Z

bios_get_vga_enabled_displays has been unused since commit 5a8132b9f606 ("drm/amd/display: remove dead dc vbios code") Remove it. Acked-by: Alex Deucher Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Alex Deucher

drm/amd/display: only trigger BIOS related assert for older ASICs

2024-09-02T15:34:02Z

[Why] Some asserts are always hit on startup/Pnp when they should only be used to indicate when something has gone wrong. [How] Ignore result of getting function from bios cmd table for newer asics. Reviewed-by: Jun Lei Signed-off-by: Daniel Sa Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: Check and log for function error codes

2024-06-27T21:10:36Z

[WHAT & HOW] BIOS_CMD_TABLE_REVISION and link_transmitter_control can return error codes and errors should be reported. This fixes 3 CHECKED_RETURN issues reported by Coverity. Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Check BIOS images before it is used

2024-06-14T20:18:55Z

BIOS images may fail to load and null checks are added before they are used. This fixes 6 NULL_RETURNS issues reported by Coverity. Reviewed-by: Harry Wentland Acked-by: Hamza Mahfooz Signed-off-by: Alex Hung Signed-off-by: Alex Deucher

drm/amd/display: Fix Coverity INTERGER_OVERFLOW within construct_integrated_info

2024-05-02T20:18:17Z

[Why] For substrcation, coverity reports integer overflow warning message when variable type is uint32_t. [How] Change varaible type to int32_t. Reviewed-by: Alex Hung Reviewed-by: Harry Wentland Acked-by: Tom Chung Signed-off-by: Hersen Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher