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Diffstat (limited to '0004-drm-amd-display-Only-revalidate-bandwidth-on-medium-.patch')
| -rw-r--r-- | 0004-drm-amd-display-Only-revalidate-bandwidth-on-medium-.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/0004-drm-amd-display-Only-revalidate-bandwidth-on-medium-.patch b/0004-drm-amd-display-Only-revalidate-bandwidth-on-medium-.patch new file mode 100644 index 0000000..2cce397 --- /dev/null +++ b/0004-drm-amd-display-Only-revalidate-bandwidth-on-medium-.patch @@ -0,0 +1,42 @@ +From 7fab9d4206e54d19b578c70cd0529045ad642f25 Mon Sep 17 00:00:00 2001 +From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Date: Mon, 29 Jun 2020 13:03:52 -0400 +Subject: 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 4acaf4be8a81..c825d383f0f1 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c +@@ -2533,10 +2533,12 @@ 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( +-- +cgit v1.2.3-1-gf6bb5 + |