gallium/ddebug: new pipe for hang detection and driver state dumping (v2)
v2: lots of improvements
This is like identity or trace, but simpler. It doesn't wrap most states.
Run with:
GALLIUM_DDEBUG=1000 [executable]
where "executable" is the app and "1000" is in miliseconds, meaning that
the context will be considered hung if a fence fails to signal in 1000 ms.
If that happens, all shaders, context states, bound resources, draw
parameters, and driver debug information (if any) will be dumped into:
/home/$username/dd_dumps/$processname_$pid_$index.
Note that the context is flushed after every draw/clear/copy/blit operation
and then waited for to find the exact call that hangs.
You can also do:
GALLIUM_DDEBUG=always
to do the dumping after every draw/clear/copy/blit operation without
flushing and waiting.
Examples of driver states that can be dumped are:
- Hardware status registers saying which hw block is busy (hung).
- Disassembled shaders in a human-readable form.
- The last submitted command buffer in a human-readable form.
v2: drop pipe-loader changes, drop SConscript
rename dd.h -> dd_pipe.h
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/configure.ac b/configure.ac
index e3b5f2e..90ba4fe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2317,6 +2317,7 @@
src/gallium/auxiliary/Makefile
src/gallium/auxiliary/pipe-loader/Makefile
src/gallium/drivers/freedreno/Makefile
+ src/gallium/drivers/ddebug/Makefile
src/gallium/drivers/i915/Makefile
src/gallium/drivers/ilo/Makefile
src/gallium/drivers/llvmpipe/Makefile