From: Alvin Lee <alvin.lee2@xxxxxxx>
[Why]
There are situations where we go from 2 pipe to 1 pipe in MPO, but this
isn't a pipe split being lost -- it's a plane disappearing in (i.e. video overlay
goes away) so we lose one pipe. In these situations we don't want to
disable the pipe in a separate operation from the rest of the pipe
programming sequence. We only want to disable a pipe in a
separate operation when we're actually disabling pipe split.
[How]
Make sure the pipe being lost has the same stream AND plane
as the old top pipe to ensure.
Signed-off-by: Alvin Lee <alvin.lee2@xxxxxxx>
Acked-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
.../drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 8ca94f506195..d0f3bf953d02 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2765,7 +2765,7 @@ bool dcn10_disconnect_pipes(
struct dc *dc,
struct dc_state *context)
{
- bool found_stream = false;
+ bool found_pipe = false;
int i, j;
struct dce_hwseq *hws = dc->hwseq;
struct dc_state *old_ctx = dc->current_state;
@@ -2805,26 +2805,28 @@ bool dcn10_disconnect_pipes(
old_ctx->res_ctx.pipe_ctx[i].top_pipe) {
/* Find the top pipe in the new ctx for the bottom pipe that we
- * want to remove by comparing the streams. If both pipes are being
- * disabled then do it in the regular pipe programming sequence
+ * want to remove by comparing the streams and planes. If both
+ * pipes are being disabled then do it in the regular pipe
+ * programming sequence
*/
for (j = 0; j < dc->res_pool->pipe_count; j++) {
if (old_ctx->res_ctx.pipe_ctx[i].top_pipe->stream == context->res_ctx.pipe_ctx[j].stream &&
+ old_ctx->res_ctx.pipe_ctx[i].top_pipe->plane_state == context->res_ctx.pipe_ctx[j].plane_state &&
!context->res_ctx.pipe_ctx[j].top_pipe &&
!context->res_ctx.pipe_ctx[j].update_flags.bits.disable) {
- found_stream = true;
+ found_pipe = true;
break;
}
}
// Disconnect if the top pipe lost it's pipe split
- if (found_stream && !context->res_ctx.pipe_ctx[j].bottom_pipe) {
+ if (found_pipe && !context->res_ctx.pipe_ctx[j].bottom_pipe) {
hws->funcs.plane_atomic_disconnect(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
DC_LOG_DC("Reset mpcc for pipe %d\n", dc->current_state->res_ctx.pipe_ctx[i].pipe_idx);
mpcc_disconnected = true;
}
}
- found_stream = false;
+ found_pipe = false;
}
}
--
2.25.1
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