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This helps in the use of GALLIUM_DDEBUG_SKIP: first run a target application
with skip set to a very large number and note how many draw calls happen
before the bug. Then re-run, skipping the corresponding number of calls.
Despite the additional run, this can still be much faster than not skipping
anything.
Reviewed-by: Marek Olšák <[email protected]>
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When we know that hangs occur only very late in a reproducible run (e.g.
apitrace), we can save a lot of debugging time by skipping the flush and hang
detection for earlier draw calls.
Reviewed-by: Marek Olšák <[email protected]>
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Signed-off-by: Emil Velikov <[email protected]>
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Signed-off-by: Emil Velikov <[email protected]>
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This will be used by radeonsi for logging.
Reviewed-by: Michel Dänzer <[email protected]>
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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 <[email protected]>
Acked-by: Alex Deucher <[email protected]>
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