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linux57-tkg: Add a patch from Nicholas Kazlauskas to fix an amdgpu crash introduced in 5.7.6

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https://gitlab.freedesktop.org/drm/amd/-/issues/1191
This commit is contained in:
Tk-Glitch
2020-06-29 23:21:23 +02:00
parent ad2cdb9e3f
commit 1f91f61694
2 changed files with 45 additions and 2 deletions
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43
linux57-tkg/linux57-tkg-patches/0003-glitched-base.patch
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@@ -598,3 +598,46 @@ index d2fa3e9ccd97c..bd10cb02fc0ff 100644
if (!strcmp(str, "force"))
force_load = 1;
if (!strcmp(str, "hwp_only"))
From 618c5a1236f179525d5f55beba23acf796581623 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Mon, 29 Jun 2020 13:03:52 -0400
Subject: [PATCH] drm/amd/display: Only revalidate bandwidth on medium and fast
updates
[Why]
Changes that are fast don't require updating DLG parameters making
this call unnecessary. Considering this is an expensive call it should
not be done on every flip.
[How]
Guard the validation to only happen if update type isn't FAST.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 67402d75e67e..942ceb0f6383 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2607,10 +2607,12 @@ void dc_commit_updates_for_stream(struct dc *dc,
copy_stream_update_to_stream(dc, context, stream, stream_update);
- if (!dc->res_pool->funcs->validate_bandwidth(dc, context, false)) {
- DC_ERROR("Mode validation failed for stream update!\n");
- dc_release_state(context);
- return;
+ if (update_type > UPDATE_TYPE_FAST) {
+ if (!dc->res_pool->funcs->validate_bandwidth(dc, context, false)) {
+ DC_ERROR("Mode validation failed for stream update!\n");
+ dc_release_state(context);
+ return;
+ }
}
commit_planes_for_stream(
--
2.25.1