kernel/linux.git/drivers/gpu/drm/amd/display/dc/dcn31, branch v6.2

drm/amd/display: correct static_screen_event_mask

2022-12-06T15:16:43+00:00

[why] HW register bit define changed. Reviewed-by: Zhan Liu Reviewed-by: Dmytro Laktyushkin Acked-by: Stylon Wang Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: rework macros for DWB register access

2022-11-15T18:35:15+00:00

[Why] A hack was used to access DWB register due to difference in the register naming convention which was not compatible with existing SR/SRI* macros. The additional macro needed were added to dwb ip specific header file (dcnxx_dwb.h) instead of soc resource file (dcnxx_resource.c). Due to this pattern, BASE macro had to be redefined in dcnxx_dwb.h, which in turn needed us to undefine them in the resource file. [How] Add a separate macro for DWB access to the resource files that need it instead of defining them in DWB ip header file. This will enable us to reuse the BASE macro defined in the resource file. Reviewed-by: Roman Li Acked-by: Tom Chung Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: fix dcn3.1x mode validation on high bandwidth config

2022-11-15T18:35:14+00:00

[why] 1. correct dram_channel_width (was hard coded to 4 for 32bit) 2. use dm's is_hvm_enable status flag for hostvm_en input for dml. 3. add a function to override to all dcn3.1x. Reviewed-by: Dmytro Laktyushkin Acked-by: Tom Chung Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add HUBP surface flip interrupt handler

2022-11-15T16:52:05+00:00

On IGT, there is a test named amd_hotplug, and when the subtest basic is executed on DCN31, we get the following error: [drm] *ERROR* [CRTC:71:crtc-0] flip_done timed out [drm] *ERROR* flip_done timed out [drm] *ERROR* [CRTC:71:crtc-0] commit wait timed out [drm] *ERROR* flip_done timed out [drm] *ERROR* [CONNECTOR:88:DP-1] commit wait timed out [drm] *ERROR* flip_done timed out [drm] *ERROR* [PLANE:59:plane-3] commit wait timed out After enable the page flip log with the below command: echo -n 'format "[PFLIP]" +p' > /sys/kernel/debug/dynamic_debug/control It is possible to see that the flip was submitted, but DC never replied back, which generates time-out issues. This is an indication that the HUBP surface flip is missing. This commit fixes this issue by adding hubp1_set_flip_int to DCN31. Reviewed-by: Nicholas Kazlauskas Acked-by: Tom Chung Signed-off-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Have risk for memory exhaustion

2022-11-09T22:41:42+00:00

In dcn*_clock_source_create when dcn*_clk_src_construct fails allocated clk_src needs release. A local attack could use this to cause memory exhaustion. Signed-off-by: LongJun Tang Signed-off-by: Alex Deucher

drm/amd/display: Fix null pointer issues found in emulation

2022-11-01T15:48:18+00:00

[why] fix null point issues found in emulation Reviewed-by: Chris Park Acked-by: Alex Hung Signed-off-by: Charlene Liu Tested-by: Mark Broadworth Signed-off-by: Alex Deucher

drm/amd/display: Add a debug option HBR2CP2520 over TPS4

2022-11-01T15:47:39+00:00

[Why & How] There are cases when we may need to override the hardcoded TPS4 test pattern. Added parameters and config option to be able to allow this. Reviewed-by: Charlene Liu Acked-by: Alex Hung Signed-off-by: Leo Chen Tested-by: Mark Broadworth Signed-off-by: Alex Deucher

drm/amd/display: Refactor eDP PSR codes

2022-10-24T18:35:54+00:00

We split out PSR config from "global" to "per-panel" config settings. Tested-by: Mark Broadworth Reviewed-by: Robin Chen Acked-by: Rodrigo Siqueira Signed-off-by: Ian Chen Signed-off-by: Alex Deucher

drm/amd/display: remove audio mute control in hpo dp

2022-10-24T18:35:40+00:00

VPG doesn't have the ability to mute audio output by sending all 0s in audio SDP. The existing implemention is disabling audio SDP instead. This is same as what dp_audio_enable does. Since it is no longer referenced by any callers, we decided to remove this interface for simplicity. Tested-by: Mark Broadworth Reviewed-by: Charlene Liu Acked-by: Rodrigo Siqueira Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher

drm/amd/display: refactor enable/disable audio stream hw sequence

2022-10-24T18:35:27+00:00

[why] 1. As recommended by hardware team, don't enable APG when stream is not enabled. 2. Move audio stream encoder programming into link_hwss. [how] 1. Merge dp_audio_enable into enable audio stream hw sequence. 2. Move stream encoder programming into link hwss level to unify stream encoder programming interface. Tested-by: Mark Broadworth Reviewed-by: Charlene Liu Acked-by: Rodrigo Siqueira Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher