diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2022-11-07 11:37:25 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-23 09:47:13 -0500 |
| commit | 80676936805e46c79c38008e5142a77a1b2f2dc7 (patch) | |
| tree | c822f06dc83ca4ea008b025a0a2b4cdcb463f6a9 /drivers/gpu/drm/amd/display/dc/dml | |
| parent | fa24e116f1ce3dcc55474f0b6ab0cac4e3ee34e1 (diff) | |
| download | linux-80676936805e46c79c38008e5142a77a1b2f2dc7.tar.bz2 | |
drm/amd/display: Add Z8 allow states to z-state support list
[Why]
Even if we block Z9 based on crossover threshold it's possible to
allow for Z8.
[How]
There's support for this on DCN314, so update the support types to
include a z8 only and z8_z10 only state.
Update the decide_zstate_support function to allow for specifying
these modes based on the Z8 threshold.
DCN31 has z-state disabled, but still update the legacy code to
map z8_only = disallow and z10_z8_only = z10_only to keep the support
the same.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c index 75dbb7ee193b..c4eca10587a6 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c @@ -949,6 +949,7 @@ static enum dcn_zstate_support_state decide_zstate_support(struct dc *dc, struc int plane_count; int i; unsigned int optimized_min_dst_y_next_start_us; + bool allow_z8 = context->bw_ctx.dml.vba.StutterPeriod > 1000.0; plane_count = 0; optimized_min_dst_y_next_start_us = 0; @@ -963,6 +964,8 @@ static enum dcn_zstate_support_state decide_zstate_support(struct dc *dc, struc * 2. single eDP, on link 0, 1 plane and stutter period > 5ms * Z10 only cases: * 1. single eDP, on link 0, 1 plane and stutter period >= 5ms + * Z8 cases: + * 1. stutter period sufficient * Zstate not allowed cases: * 1. Everything else */ @@ -990,11 +993,14 @@ static enum dcn_zstate_support_state decide_zstate_support(struct dc *dc, struc if (context->bw_ctx.dml.vba.StutterPeriod > 5000.0 || optimized_min_dst_y_next_start_us > 5000) return DCN_ZSTATE_SUPPORT_ALLOW; else if (link->psr_settings.psr_version == DC_PSR_VERSION_1 && !link->panel_config.psr.disable_psr) - return DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY; + return allow_z8 ? DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY : DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY; else - return DCN_ZSTATE_SUPPORT_DISALLOW; - } else + return allow_z8 ? DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY : DCN_ZSTATE_SUPPORT_DISALLOW; + } else if (allow_z8) { + return DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY; + } else { return DCN_ZSTATE_SUPPORT_DISALLOW; + } } void dcn20_calculate_dlg_params( |