kernel/linux.git/drivers/gpu/drm/amd/display/dmub/src, branch v5.10.263

drm/amd/display: Change the DMCUB mailbox memory location from FB to inbox

2023-11-28T16:55:02+00:00

commit 5911d02cac70d7fb52009fbd37423e63f8f6f9bc upstream. [WHY] Flush command sent to DMCUB spends more time for execution on a dGPU than on an APU. This causes cursor lag when using high refresh rate mouses. [HOW] 1. Change the DMCUB mailbox memory location from FB to inbox. 2. Only change windows memory to inbox. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Nicholas Kazlauskas Acked-by: Alex Hung Signed-off-by: Lewis Huang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

Revert "drm/amd/display: add mechanism to skip DCN init"

2020-07-10T21:41:25+00:00

To avoid s3 faild at the first cycle on renoir platform, it needs to revert this patch: drm/amd/display: add mechanism to skip DCN init Signed-off-by: changfeng Ackedy-by: Huang Rui Signed-off-by: Alex Deucher

drm/amd/display: Add missing CW4 programming for DCN30

2020-07-08T13:04:14+00:00

[Why] To support inbox1 in CW4 we need to actually program CW4 instead of region 4 for newer firmware. This is done correctly on DCN20/DCN21 but this code wasn't added to DCN30. [How] Copy over the missing code. It doesn't need address translation since DCN30 uses virtual addressing. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: Fill in dmub_srv fw_version from firmware metadata

2020-07-01T05:59:25+00:00

[Why] DMCUB firmware version is now available from firmware metadata block. We should be passing this into dmub_srv so we can know when to apply firmware version specific functionality like using CW4 only instead of the REGION4. [How] We don't have the helpers for DM to actually extract out firmware metadata block themselves. We could add that and add helpers in DM to grab this, but not every creation sequence has firmware instruction before dmub_srv_create. Easiest way to handle this is to fill this in automatically per DM in the place we do have it - when calculating the region parameters. But only fill it in if DM already hasn't in case we need to override with a specific version. We aren't do anything firmware version specific in dmub_srv_create today that does require fw_version, so while it's a little unituitive to do it when calculating region parameters it works for now. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Tony Cheng Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: add mechanism to skip DCN init

2020-07-01T05:59:25+00:00

[Why] If optimized init is done in FW. DCN init be skipped in driver. This need to be communicated between driver and fw and maintain backwards compatibility. [How] Use DMUB scratch 0 bit 2 to indicate optimized init done in fw and use DMUB scatch 4 bit 0 to indicate drive supports the optimized flow so FW will perform it. Signed-off-by: Eric Yang Reviewed-by: Tony Cheng Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: not reset dmub in driver.

2020-07-01T05:59:21+00:00

[Why] during S0i3, set power state is toggled a few times, and dmub uC will restart with current reset/hw_init. [How] Remove reset in set power state, and before doing hw_init, check if dmub is enabled, and doing FW autoload check only if dmub is already enabled. Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher

drm/amd/display: runtime select dmub emulatior.

2020-07-01T05:59:20+00:00

[Why & How] Add emul specific hw function to dmub, in case of emulator is created, we can runtime switch between dmub emulator or dmub uC via is_virtual flag in dmub. Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher

drm/amd/display: Add DCN3 DMUB

2020-07-01T05:59:15+00:00

DMUB (Display Micro-Controller Unit) Used to read/write regs Signed-off-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: combine public interfaces into single header

2020-05-28T18:00:51+00:00

[Why] We want to better encapsulate all driver-fw dependencies into a single file. [How] Combine all the headers under inc folder into a single header Signed-off-by: Anthony Koo Reviewed-by: Tony Cheng Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher

drm/amd/display: Increase Default Sizes of FW State and Trace Buffer

2020-05-28T18:00:50+00:00

[WHY] To facilitate DM removing the dependency between dc and the firmware binary. [HOW] Setting the default values to match VBIOS: 64 KB. These values are only used if meta is absent. Signed-off-by: David Galiffi Reviewed-by: Nicholas Kazlauskas Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher