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| author | Martin Leung <Martin.Leung@amd.com> | 2021-12-10 15:04:07 -0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-14 16:08:41 -0500 |
| commit | 4866b0bfea40cddb7275c88aeb95b47dac3d2a35 (patch) | |
| tree | ddb844499963c8b30b11cb3f3d8cfb12cfb9d496 /drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c | |
| parent | b477143566d5b16c8b92ffec2cb3a896fe818509 (diff) | |
| download | linux-stable-4866b0bfea40cddb7275c88aeb95b47dac3d2a35.tar.gz linux-stable-4866b0bfea40cddb7275c88aeb95b47dac3d2a35.tar.bz2 linux-stable-4866b0bfea40cddb7275c88aeb95b47dac3d2a35.zip | |
drm/amd/display: implement dc_mode_memclk
why:
Need interface to lower clocks when in dc (power save)
mode. Must be able to work with p_state unsupported cases
Can cause flicker when OS notifies us of dc state change
how:
added dal3 interface for KMD
added pathway to query smu for this softmax
added blank before clock change to override underflow
added logic to change clk based on pstatesupport and softmax
added logic in prepare/optimize_bw to conform while changing
clocks
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Martin Leung <Martin.Leung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c index eac08926b574..6a4dcafb9bba 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubp.c @@ -490,6 +490,7 @@ static struct hubp_funcs dcn30_hubp_funcs = { .hubp_setup_interdependent = hubp2_setup_interdependent, .hubp_set_vm_system_aperture_settings = hubp3_set_vm_system_aperture_settings, .set_blank = hubp2_set_blank, + .set_blank_regs = hubp2_set_blank_regs, .dcc_control = hubp3_dcc_control, .mem_program_viewport = min_set_viewport, .set_cursor_attributes = hubp2_cursor_set_attributes, |