vc4: Add support for dumping executed commands to a file.

The VC4_DEBUG=cl,qpu is nice and all, but I want to be able to get more
detailed dumps, and to replay the same exact commands in simulation.  For
that I need a dump with all of the VBOs, shaders, shader recs, etc.  This
dump can be parsed by vc4-gpu-tools.

For now this is only doable from simulator mode, because otherwise we
don't have access to the RCL contents generated by the kernel.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc4/vc4_screen.c b/src/gallium/drivers/vc4/vc4_screen.c
index 090579c2c76..8ddf0865d21 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -57,6 +57,10 @@ static const struct debug_named_value debug_options[] = {
           "Flush after each draw call" },
         { "always_sync", VC4_DEBUG_ALWAYS_SYNC,
           "Wait for finish after each flush" },
+#if USE_VC4_SIMULATOR
+        { "dump", VC4_DEBUG_DUMP,
+          "Write a GPU command stream trace file" },
+#endif
         { NULL }
 };