diff mbox series

[5.4,074/184] drm/amd/display: Dont optimize bandwidth before disabling planes

Message ID 20210510101952.614548942@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH May 10, 2021, 10:19 a.m. UTC 
From: Aric Cyr <aric.cyr@amd.com>

[ Upstream commit 6ad98e8aeb0106f453bb154933e8355849244990 ]

[Why]
There is a window of time where we optimize bandwidth due to no streams
enabled will enable PSTATE changing but HUBPs are not disabled yet.
This results in underflow counter increasing in some hotplug scenarios.

[How]
Set the optimize-bandwidth flag for later processing once all the HUBPs
are properly disabled.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 68d56a91d44b..092db590087c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1961,7 +1961,8 @@  static void commit_planes_do_stream_update(struct dc *dc,
 					if (pipe_ctx->stream_res.audio && !dc->debug.az_endpoint_mute_only)
 						pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
 
-					dc->hwss.optimize_bandwidth(dc, dc->current_state);
+					dc->optimized_required = true;
+
 				} else {
 					if (!dc->optimize_seamless_boot)
 						dc->hwss.prepare_bandwidth(dc, dc->current_state);