diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1589-drm-amd-display-add-pipe-lock-during-stream-update.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1589-drm-amd-display-add-pipe-lock-during-stream-update.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1589-drm-amd-display-add-pipe-lock-during-stream-update.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1589-drm-amd-display-add-pipe-lock-during-stream-update.patch new file mode 100644 index 00000000..26ebe1bd --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1589-drm-amd-display-add-pipe-lock-during-stream-update.patch @@ -0,0 +1,42 @@ +From 703e452cf5b938813f55edc78a2c446f918333ac Mon Sep 17 00:00:00 2001 +From: Wenjing Liu <Wenjing.Liu@amd.com> +Date: Wed, 20 Feb 2019 14:00:55 -0500 +Subject: [PATCH 1589/2940] drm/amd/display: add pipe lock during stream update + +[why] +Stream update will adjust both info packets and stream params, +need to make sure all things are applied togather. + +[how] +add pipe lock during stream update + +Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com> +Reviewed-by: Jun Lei <Jun.Lei@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c +index 20b0f03151d1..19aea68c9d67 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c +@@ -1681,6 +1681,7 @@ static void commit_planes_do_stream_update(struct dc *dc, + continue; + + if (stream_update->dpms_off) { ++ dc->hwss.pipe_control_lock(dc, pipe_ctx, true); + if (*stream_update->dpms_off) { + core_link_disable_stream(pipe_ctx, KEEP_ACQUIRED_RESOURCE); + dc->hwss.optimize_bandwidth(dc, dc->current_state); +@@ -1688,6 +1689,7 @@ static void commit_planes_do_stream_update(struct dc *dc, + dc->hwss.prepare_bandwidth(dc, dc->current_state); + core_link_enable_stream(dc->current_state, pipe_ctx); + } ++ dc->hwss.pipe_control_lock(dc, pipe_ctx, false); + } + + if (stream_update->abm_level && pipe_ctx->stream_res.abm) { +-- +2.17.1 + |