From 58180a0cc0c57fe62a799a112f95b60f6935bd96 Mon Sep 17 00:00:00 2001
From: Mikita Lipski <mikita.lipski@amd.com>
Date: Thu, 14 Jan 2021 11:48:57 -0500
Subject: [PATCH] drm/amd/display: Release DSC before acquiring
Git-commit: 58180a0cc0c57fe62a799a112f95b60f6935bd96
Patch-mainline: v5.11-rc7
References: git-fixes
[why]
Need to unassign DSC from pipes that are not using it
so other pipes can acquire it. That is needed for
asic's that have unmatching number of DSC engines from
the number of pipes.
[how]
Before acquiring dsc to stream resources, first remove it.
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Eryk Brol <Eryk.Brol@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 8ab0b9060d2b..f2d8cf34be46 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -833,6 +833,9 @@ bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
if (computed_streams[i])
continue;
+ if (dcn20_remove_stream_from_ctx(stream->ctx->dc, dc_state, stream) != DC_OK)
+ return false;
+
mutex_lock(&aconnector->mst_mgr.lock);
if (!compute_mst_dsc_configs_for_link(state, dc_state, stream->link)) {
mutex_unlock(&aconnector->mst_mgr.lock);
@@ -850,7 +853,8 @@ bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
stream = dc_state->streams[i];
if (stream->timing.flags.DSC == 1)
- dc_stream_add_dsc_to_resource(stream->ctx->dc, dc_state, stream);
+ if (dc_stream_add_dsc_to_resource(stream->ctx->dc, dc_state, stream) != DC_OK)
+ return false;
}
return true;
--
2.26.2