kernel/linux.git/drivers/gpu/drm/amd/display/dc/bios, branch linux-6.9.y

drm/amd/display: Atom Integrated System Info v2_2 for DCN35

2024-05-01T01:35:15+00:00

New request from KMD/VBIOS in order to support new UMA carveout model. This fixes a null dereference from accessing Ctx->dc_bios->integrated_info while it was NULL. DAL parses through the BIOS and extracts the necessary integrated_info but was missing a case for the new BIOS version 2.3. Reviewed-by: Nicholas Kazlauskas Acked-by: Aurabindo Pillai Signed-off-by: Gabe Teeger Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add DC changes for DCN351

2024-03-04T20:59:08+00:00

Add DC support for DCN 3.5.1. Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: fixed integer types and null check locations

2024-02-14T22:13:28+00:00

[why]: issues fixed: - comparison with wider integer type in loop condition which can cause infinite loops - pointer dereference before null check Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Josip Pavic Acked-by: Aurabindo Pillai Signed-off-by: Sohaib Nadeem Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amdgpu: check PS, WS index

2024-01-15T23:35:37+00:00

Theoretically, it would be possible for a buggy or malicious VBIOS to overwrite past the bounds of the passed parameters (or its own workspace); add bounds checking to prevent this from happening. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3093 Signed-off-by: Alexander Richards Signed-off-by: Alex Deucher

drm/amd/display: Wake DMCUB before sending a command

2023-12-19T19:59:02+00:00

[Why] We can hang in place trying to send commands when the DMCUB isn't powered on. [How] For functions that execute within a DC context or DC lock we can wrap the direct calls to dm_execute_dmub_cmd/list with code that exits idle power optimizations and reallows once we're done with the command submission on success. For DM direct submissions the DM will need to manage the enter/exit sequencing manually. We cannot invoke a DMCUB command directly within the DM execution helper or we can deadlock. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Hansen Dsouza Acked-by: Wayne Lin Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: get dprefclk ss info from integration info table

2023-12-19T19:59:02+00:00

[why & how] we have two SSC_En: we get ssc_info from dce_info for MPLL_SSC_EN. we used to call VBIOS cmdtbl's smu_info's SS persentage for DPRECLK SS info, is used for DP AUDIO and VBIOS' smu_info table was from systemIntegrationInfoTable. since dcn35 VBIOS removed smu_info, driver need to use integrationInfotable directly. Reviewed-by: Nicholas Kazlauskas Acked-by: Wayne Lin Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Revert " drm/amd/display: Use channel_width = 2 for vram table 3.0"

2023-12-15T17:17:19+00:00

[Description] Revert commit fec05adc40c2 ("drm/amd/display: Use channel_width = 2 for vram table 3.0") Because the issue is being fixed from VBIOS side. Reviewed-by: Samson Tam Acked-by: Wayne Lin Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Remove minor revision 5 until proper parser is ready

2023-12-13T20:09:53+00:00

Reviewed-by: Dillon Varone Acked-by: Aurabindo Pillai Signed-off-by: Joshua Aberback Signed-off-by: Alex Deucher

drm/amd/display: Adjust code style

2023-12-06T20:22:36+00:00

This simple commit adjusts part of the code style in some of the dc bios files. Tested-by: Daniel Wheeler Reviewed-by: Aurabindo Pillai Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Update BIOS FW info table revision

2023-12-06T20:22:33+00:00

[Why] BIOS FW info version 3.5 is introduced to support new ASICs, but it's content is currently same as 3.4. [How] Include minor version 5 in parsing to enable support. Tested-by: Daniel Wheeler Reviewed-by: Dillon Varone Acked-by: Rodrigo Siqueira Signed-off-by: Chris Park Signed-off-by: Alex Deucher