From: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: stylon.wang@amd.com, Sunpeng.Li@amd.com, Harry.Wentland@amd.com,
qingqing.zhuo@amd.com, Rodrigo.Siqueira@amd.com,
roman.li@amd.com, solomon.chiu@amd.com, jerry.zuo@amd.com,
Aurabindo.Pillai@amd.com, hamza.mahfooz@amd.com,
wayne.lin@amd.com, Bhawanpreet.Lakha@amd.com,
Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>,
agustin.gutierrez@amd.com, pavle.kotarac@amd.com
Subject: [PATCH 12/40] drm/amd/display: Fix stream->link_enc unassigned during stream removal
Date: Thu, 30 Jun 2022 15:12:54 -0400 [thread overview]
Message-ID: <20220630191322.909650-13-Rodrigo.Siqueira@amd.com> (raw)
In-Reply-To: <20220630191322.909650-1-Rodrigo.Siqueira@amd.com>
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
[Why]
Found when running igt@kms_atomic.
Userspace attempts to do a TEST_COMMIT when 0 streams which calls
dc_remove_stream_from_ctx. This in turn calls link_enc_unassign which
ends up modifying stream->link = NULL directly, causing the global
link_enc to be removed preventing further link activity and future link
validation from passing.
[How]
We take care of link_enc unassignment at the start of
link_enc_cfg_link_encs_assign so this call is no longer necessary.
Fixes global state from being modified while unlocked.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 28803ca9e3f2..332110bb1286 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1994,9 +1994,6 @@ enum dc_status dc_remove_stream_from_ctx(
dc->res_pool,
del_pipe->stream_res.stream_enc,
false);
- /* Release link encoder from stream in new dc_state. */
- if (dc->res_pool->funcs->link_enc_unassign)
- dc->res_pool->funcs->link_enc_unassign(new_ctx, del_pipe->stream);
if (is_dp_128b_132b_signal(del_pipe)) {
update_hpo_dp_stream_engine_usage(
--
2.25.1
next prev parent reply other threads:[~2022-06-30 19:14 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-30 19:12 [PATCH 00/40] DC Patches Jun 30, 2022 Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 01/40] drm/amd/display: Add missing registers for ACP Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 02/40] drm/amd/display: Add SubVP required code Rodrigo Siqueira
2022-07-06 17:58 ` Nathan Chancellor
2022-07-06 19:38 ` Alex Deucher
2022-07-06 20:30 ` Nathan Chancellor
2022-06-30 19:12 ` [PATCH 03/40] drm/amd/display: Prepare for new interfaces Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 04/40] drm/amd/display: Add function to set pixels per cycle Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 05/40] drm/amd/display: Apply ODM 2:1 policy for single display configuration Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 06/40] drm/amd/display: Use two pixel per container for k1/k2 div Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 07/40] drm/amd/display: Change DET policy for MPO cases Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 08/40] drm/amd/display: Switch to correct DTO on HDMI Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 09/40] drm/amd/display: Update gpuvm_max_page_table_levels IP param Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 10/40] drm/amd/display: Make OPTC3 function accessible to other DCN Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 11/40] drm/amd/display: Add basic infrastructure for enabling FAMS Rodrigo Siqueira
2022-06-30 19:12 ` Rodrigo Siqueira [this message]
2022-06-30 19:12 ` [PATCH 13/40] drm/amd/display: Add SubVP control lock Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 14/40] drm/amd/display: Add minimal pipe split transition state Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 15/40] drm/amd/display: disable timing sync b/w odm halves Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 16/40] drm/amd/display: guard for virtual calling destroy_link_encoders Rodrigo Siqueira
2022-06-30 19:12 ` [PATCH 17/40] drm/amd/display: Maintain consistent mode of operation during encoder assignment Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 18/40] drm/amd/display: Extend soc BB capabilitiy Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 19/40] drm/amd/display: Don't set dram clock change requirement for SubVP Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 20/40] drm/amd/display: add an option to skip wait for HPD when powering on eDP panel Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 21/40] drm/amd/display: Program ACP related register Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 22/40] drm/amd/display: Guard against ddc_pin being NULL for AUX Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 23/40] drm/amd/display: Remove incorrect ASSERT check for link_enc Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 24/40] drm/amd/display: Guard against NULL link encoder in log hw state Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 25/40] drm/amd/display: Fix dmub soft hang for PSR 1 Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 26/40] drm/amd/display: disable otg toggle w/a on boot Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 27/40] drm/amd/display: Indicate stream change on ODM change Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 28/40] drm/amd/display: Remove configuration option for dpia hpd delay Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 29/40] drm/amd/display: Fix refresh rate issue on Club 3D Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 30/40] drm/amd/display: Disable TBT3 DSC work around by default Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 31/40] drm/amd/display: Add flag to modify MST delay Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 32/40] drm/amd/display: Fix null timing generator resource Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 33/40] drm/amd/display: Move all linux includes into OS types Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 34/40] drm/amd/display: Fix uninitialized variable Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 35/40] drm/amd/display: Initialize lt_settings on instantiation Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 36/40] drm/amd/display: OVT Update on InfoFrame and Mode Management Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 37/40] drm/amd/display: enable PCON SST support for newer ASICs Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 38/40] drm/amd/display: rename hdmi_frl_pcon_support Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 39/40] drm/amd/display: Maintain old audio programming sequence Rodrigo Siqueira
2022-06-30 19:13 ` [PATCH 40/40] drm/amd/display: 3.2.192 Rodrigo Siqueira
2022-07-05 13:16 ` [PATCH 00/40] DC Patches Jun 30, 2022 Wheeler, Daniel
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