radeonsi/gfx9: wait for main part compilation of 1st shaders of merged shaders

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 631272efcd6d1b6cce3951c792aa4315d5964159..727bf4bee9afe738172e88da98deccc8f5977d35 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -1602,6 +1602,10 @@ again:
                        previous_stage_sel = key->part.tcs.ls;
                else if (sel->type == PIPE_SHADER_GEOMETRY)
                        previous_stage_sel = key->part.gs.es;
+
+               /* We need to wait for the previous shader. */
+               if (previous_stage_sel && thread_index < 0)
+                       util_queue_fence_wait(&previous_stage_sel->ready);
        }
 
        /* Compile the main shader part if it doesn't exist. This can happen