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drm/amd/display: limit unbounded requesting to 5k

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Unbounded requesting is unsupported on pipe split modes
and this change prevents us running into such a situation
with wide modes.

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2022-01-25 09:34:39 -05:00 committed by Alex Deucher
parent 6d33f0e820
commit 3084488a49
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
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@ -1842,7 +1842,8 @@ static int dcn31_populate_dml_pipes_from_context(
if (is_dual_plane(pipe->plane_state->format)
&& pipe->plane_state->src_rect.width <= 1920 && pipe->plane_state->src_rect.height <= 1080) {
dc->config.enable_4to1MPC = true;
} else if (!is_dual_plane(pipe->plane_state->format)) {
} else if (!is_dual_plane(pipe->plane_state->format) && pipe->plane_state->src_rect.width <= 5120) {
/* Limit to 5k max to avoid forced pipe split when there is not enough detile for swath */
context->bw_ctx.dml.ip.det_buffer_size_kbytes = 192;
pipes[0].pipe.src.unbounded_req_mode = true;
}