Commit Graph

9 Commits

Author SHA1 Message Date
Dillon Varone
d7b618bc41 drm/amd/display: Refactor DSC cap calculations
[WHY]
DSC block level should only be responsible for reporting single DSC
instance capabilities. Factoring in ODM combine requirements should be
handled in dc_dsc.c. Both components should acquire clocks from clk_mgr
to determine throughput capabilities instead of relying on hard coded
values as these can differ by SoC and SKU.

[HOW]
1) Add dsc_get_single_enc_caps to acquire single DSC instance
    capabilities (replacing dsc_get_enc_caps), factoring in DSCCLK
2) add build_dsc_enc_caps to combine single DSC instance capabilities
3) account for max pixel rate per pipe (DISPCLK) when calculating
    minimum slice count

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-07-15 14:07:51 -04:00
Karthi Kandasamy
8ebfc4d25a drm/amd/display: prepare for new platform
[Why & How]
Expose some function for new platform use

Reviewed-by: Nevenko Stupar <nevenko.stupar@amd.com>
Signed-off-by: Karthi Kandasamy <karthi.kandasamy@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-06-30 11:58:44 -04:00
Bhuvanachandra Pinninti
f6510641d2 drm/amd/display: Refactoring DSC enum dsc_bits_per_comp.
[Why]
Previously the 'dsc_bits_per_comp' enumeration was defined in individual
.c files, making it unavailable for other files that may need it.

[How]
The 'dsc_bits_per_comp' enumeration has been relocated to a common header
file.

Reviewed-by: Mounika Adhuri <Mounika.Adhuri@amd.com>
Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Bhuvanachandra Pinninti <bpinnint@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-05-05 12:54:18 -04:00
Dmytro
2739bd1237 drm/amd/display: Allow reuse of of DCN4x code
Remove the static qualifier to make it available for code sharing
with other components.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Dmytro <dmytro.laktyushkin@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-02-12 21:03:01 -05:00
Jinjie Ruan
2845f51223 drm/amd/display: Make dcn401_dsc_funcs static
The sparse tool complains as follows:

drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dcn401/dcn401_dsc.c:30:24: warning:
	symbol 'dcn401_dsc_funcs' was not declared. Should it be static?

This symbol is not used outside of dcn401_dsc.c, so marks it static.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-08-23 10:53:42 -04:00
Ryan Seto
569d7db70e drm/amd/display: Adjust reg field for DSC wait for disconnect
[WHY]
DSC was waiting for the wrong field to disconnect cleanly.

[HOW]
Changed field the DSC disconnect was waiting on.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ryan Seto <ryanseto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-06-27 17:10:38 -04:00
Wenjing Liu
6ac05ae5ff drm/amd/display: Allow higher DSC slice support for small timings on dcn401
[WHY]
DML2.1 has added the support to determine ODM combine based on DSC slice
count limitation. This support would allow us to support DSC slice higher
than 4 on small timings. The change will allow higher DSC slice support
independent from pixel clock in use.

[HOW]
Add a DCN401 get_enc_caps function to allow the support for DSC slice count
higher than 4.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-13 15:47:28 -04:00
Wenjing Liu
176278d8bf drm/amd/display: reset DSC clock in post unlock update
[why]
Switching between DSC clock or disable DSC block are not double buffered update.
Corruption is observed if these updates happen before DSC double buffered
disconnection.

[how]
Move DSC disable and refclk reset to post unlock update. Wait for DSC double buffered
disconnection and all mpccs are disconnected before reset DSC clock.

Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08 15:17:03 -04:00
Aurabindo Pillai
70839da636 drm/amd/display: Add new DCN401 sources
Add initial support for DCN 4.0.1.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-26 17:23:13 -04:00