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drm/amd/display: Correcting prefetch mode for fast validate

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[WHY and HOW]
When fast validating, we should be agnostic to any sort of optimizations
such as supporting Pstate or stutter in Vblank. We should change our
prefetch mode for fast validate to support none of these optimizations.
For example, Valve Index running at 144Hz can only be validated without
any support these optimizations.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Saaem Rizvi <SyedSaaem.Rizvi@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Saaem Rizvi 2023-01-05 18:28:34 -05:00 • committed by Alex Deucher
parent 40e9f3f067
commit ae284577d8
1 changed files with 1 additions and 7 deletions
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8
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
View file

@ -1601,17 +1601,11 @@ bool dcn32_internal_validate_bw(struct dc *dc,
* to support with Prefetch mode 1 (dm_prefetch_support_fclk_and_stutter == 2)
*/
context->bw_ctx.dml.soc.allow_for_pstate_or_stutter_in_vblank_final =
dm_prefetch_support_fclk_and_stutter;
dm_prefetch_support_none;
context->bw_ctx.dml.validate_max_state = fast_validate;
vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);
/* Last attempt with Prefetch mode 2 (dm_prefetch_support_stutter == 3) */
if (vlevel == context->bw_ctx.dml.soc.num_states) {
context->bw_ctx.dml.soc.allow_for_pstate_or_stutter_in_vblank_final =
dm_prefetch_support_stutter;
vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);
}
context->bw_ctx.dml.validate_max_state = false;
if (vlevel < context->bw_ctx.dml.soc.num_states) {