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drm/amd/display: Re-initialize viewport after pipe merge

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[Why]
Pipes get merged in preparation for SubVP but if they don't get used, and
are in ODM or some other multi pipe config, it would calculate the
voltage level with a viewport of just one pipe from when they were split
resulting in too low of a voltage level.

[How]
Made it so that the viewport and other timing settings get rebuilt and re-
initialized after the pipe merge, before calculating the voltage level so it
would calculate it correctly.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Ethan Wellenreiter <Ethan.Wellenreiter@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ethan Wellenreiter 2022-08-22 14:33:23 -04:00 committed by Alex Deucher
parent 6ffc967c36
commit f5b9c1ffab
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
View File

@ -1014,6 +1014,15 @@ static void dcn32_full_validate_bw_helper(struct dc *dc,
dc->debug.force_subvp_mclk_switch)) {
dcn32_merge_pipes_for_subvp(dc, context);
// to re-initialize viewport after the pipe merge
for (int i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
if (!pipe_ctx->plane_state || !pipe_ctx->stream)
continue;
resource_build_scaling_params(pipe_ctx);
}
while (!found_supported_config && dcn32_enough_pipes_for_subvp(dc, context) &&
dcn32_assign_subvp_pipe(dc, context, &dc_pipe_idx)) {