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docs: document v3d/v3dv envvars

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As we are here we also update VC4_DEBUG option, in order to rely on
VC4_DEBUG=help

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15593>
This commit is contained in:
Alejandro Piñeiro 2022-03-26 00:38:36 +01:00 committed by Marge Bot
parent b8324a7387
commit 2f33c52daf
1 changed files with 9 additions and 23 deletions
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32
docs/envvars.rst
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@ -575,30 +575,16 @@ VC4 driver environment variables
--------------------------------
:envvar:`VC4_DEBUG`
a comma-separated list of named flags, which do various things:
a comma-separated list of named flags, which do various things. Use
`VC4_DEBUG=help` to print a list of available options.
``cl``
dump command list during creation
``qpu``
dump generated QPU instructions
``qir``
dump QPU IR during program compile
``nir``
dump NIR during program compile
``tgsi``
dump TGSI during program compile
``shaderdb``
dump program compile information for shader-db analysis
``perf``
print during performance-related events
``norast``
skip actual hardware execution of commands
``always_flush``
flush after each draw call
``always_sync``
wait for finish after each flush
``dump``
write a GPU command stream trace file (VC4 simulator only)
V3D/V3DV driver environment variables
-------------------------------------
:envvar:`V3D_DEBUG`
a comma-separated list of debug options. Use `V3D_DEBUG=help` to
print a list of available options.
.. _radv env-vars: