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

drm/amd/display: Amend coasting vtotal for replay low hz

2024-03-20T17:12:58+00:00

[WHY] The original coasting vtotal is 2 bytes, and it need to be amended to 4 bytes because low hz case. [HOW] Amend coasting vtotal from 2 bytes to 4 bytes. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Alvin Lee Acked-by: Alex Hung Signed-off-by: ChunTao Tso Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add DMUB source files and changes for DCN351

2024-03-04T20:59:07+00:00

DMUB support is required to light-up displays. Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: add DCN351 version identifiers

2024-03-04T20:59:07+00:00

Add DCN3.5.1 ASIC identifiers. Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: Fix S4 hang polling on HW power up done for VBIOS DMCUB

2024-02-22T15:18:00+00:00

[Why] VBIOS DMCUB firmware doesn't set the dal_fw bit and we end up hanging waiting for HW power up done because of it. [How] Simplify the path and allow mailbox_rdy to be a functional check when we detect VBIOS firmware. Reviewed-by: Charlene Liu Acked-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher

drm/amd/display: Add shared firmware state for DMUB IPS handshake

2024-02-14T22:13:37+00:00

[Why] Read modify write hazards can occur when using a single shared scratch register between driver and firmware leading to driver accessing DCN in IPS2 and a system hang. [How] Add infrastructure for using REGION6 as a shared firmware state between driver and firmware. This region is uncachable. Replace the existing get/set idle calls with reads/writes to the (volatile) shared firmware state blocks that a separated by at least a cache line between firmware and driver. Remove the workarounds that required rewriting/checking read modify write hazards. Reviewed-by: Charlene Liu Acked-by: Aurabindo Pillai Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Drop legacy code

2024-02-07T17:26:23+00:00

Display code keeps getting improvements, and because of that, some legacy code is left behind. This commit drops some of those unused codes. Acked-by: Hamza Mahfooz Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: [FW Promotion] Release 0.0.202.0

2024-01-29T20:46:40+00:00

- Add control flag for IPS residency profiling Reviewed-by: Tom Chung Acked-by: Tom Chung Signed-off-by: Anthony Koo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: refine code for dmcub inbox1 ring buffer debug

2024-01-29T20:42:43+00:00

[Why] 1. To watch dmcub inbox1 ring buffer cmd type without tools 2. dmub_cmd_PLAT_54186_wa 66 bytes [How] Added dmcub cmd type enum: unsigned char for debug use only, also fixed 66 bytes issue by using unsigned int in bit define instead of unsigned char. Reviewed-by: Nicholas Kazlauskas Acked-by: Tom Chung Signed-off-by: Fudongwang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Wait for mailbox ready when powering up DMCUB

2024-01-29T20:41:36+00:00

[Why] Otherwise we can send commands too early and they don't execute until the next command is sent. [How] Check the extra status bit when polling for HW powered up. Reviewed-by: Charlene Liu Acked-by: Tom Chung Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: [FW Promotion] Release 0.0.201.0

2024-01-22T22:13:27+00:00

- Add debug flag for Replay IPS visual confirm - Remove unused debug flags that should not be controlled inside Replay FSM Acked-by: Roman Li Signed-off-by: Anthony Koo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher