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authorWenjing Liu <[email protected]>2024-01-18 15:30:01 -0500
committerAlex Deucher <[email protected]>2024-01-29 15:45:53 -0500
commitc50c9c872e76d6b171b5fb77341f337c78349bca (patch)
treea0cf6bfdef3012e08657bccf06c6c1c4ad70cfac
parent607e1b0cf480cb8dbd65b372397871d7389942b5 (diff)
drm/amd/display: use correct phantom pipe when populating subvp pipe info
[why] In current code, we recognize a pipe as a phantom pipe if it references the same phantom stream. However it can also a phantom split pipe. If the phantom split pipe has a smaller pipe index than the phantom pipe we will mistakenly use the phantom split pipe as the phantom pipe. This causes an incorrect subvp configuration where the first half of the screen is flashing solid white image. [how] Add additional check that the pipe needs to be an OTG master pipe. Reviewed-by: Alvin Lee <[email protected]> Acked-by: Tom Chung <[email protected]> Signed-off-by: Wenjing Liu <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
-rw-r--r--drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index c365cca05718..3d7252218ea9 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -787,7 +787,8 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc,
for (j = 0; j < dc->res_pool->pipe_count; j++) {
struct pipe_ctx *phantom_pipe = &context->res_ctx.pipe_ctx[j];
- if (phantom_pipe->stream == dc_state_get_paired_subvp_stream(context, subvp_pipe->stream)) {
+ if (resource_is_pipe_type(phantom_pipe, OTG_MASTER) &&
+ phantom_pipe->stream == dc_state_get_paired_subvp_stream(context, subvp_pipe->stream)) {
pipe_data->pipe_config.subvp_data.phantom_pipe_index = phantom_pipe->stream_res.tg->inst;
if (phantom_pipe->bottom_pipe) {
pipe_data->pipe_config.subvp_data.phantom_split_pipe_index = phantom_pipe->bottom_pipe->plane_res.hubp->inst;