Commit aa038773 authored by Erik Faye-Lund 's avatar Erik Faye-Lund 💬 Committed by Marge Bot
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docs: document r600 envvars

We document other AMD GPU envvars, so let's add docs for the r600
envvars as well.

Closes: mesa/mesa#2022

Reviewed-by: Gert Wollny's avatarGert Wollny <gert.wollny@collabora.com>
Part-of: <mesa/mesa!10453>
parent 39c0cf55
Pipeline #309888 passed with stage
in 2 minutes and 47 seconds
......@@ -776,5 +776,136 @@ radeonsi driver environment variables
``dfsm``
Enable DFSM.
r600 driver environment variables
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``R600_DEBUG``
a comma-separated list of named flags, which do various things:
``nocpdma``
Disable CP DMA
``nosb``
Disable sb backend for graphics shaders
``sbcl``
Enable sb backend for compute shaders
``sbdry``
Don't use optimized bytecode (just print the dumps)
``sbstat``
Print optimization statistics for shaders
``sbdump``
Print IR dumps after some optimization passes
``sbnofallback``
Abort on errors instead of fallback
``sbdisasm``
Use sb disassembler for shader dumps
``sbsafemath``
Disable unsafe math optimizations
``nirsb``
Enable NIR with SB optimizer
``tex``
Print texture info
``nir``
Enable experimental NIR shaders
``compute``
Print compute info
``vm``
Print virtual addresses when creating resources
``info``
Print driver information
``fs``
Print fetch shaders
``vs``
Print vertex shaders
``gs``
Print geometry shaders
``ps``
Print pixel shaders
``cs``
Print compute shaders
``tcs``
Print tessellation control shaders
``tes``
Print tessellation evaluation shaders
``noir``
Don't print the LLVM IR
``notgsi``
Don't print the TGSI
``noasm``
Don't print disassembled shaders
``preoptir``
Print the LLVM IR before initial optimizations
``checkir``
Enable additional sanity checks on shader IR
``nooptvariant``
Disable compiling optimized shader variants.
``testdma``
Invoke SDMA tests and exit.
``testvmfaultcp``
Invoke a CP VM fault test and exit.
``testvmfaultsdma``
Invoke a SDMA VM fault test and exit.
``testvmfaultshader``
Invoke a shader VM fault test and exit.
``nodma``
Disable asynchronous DMA
``nohyperz``
Disable Hyper-Z
``noinvalrange``
Disable handling of INVALIDATE_RANGE map flags
``no2d``
Disable 2D tiling
``notiling``
Disable tiling
``switch_on_eop``
Program WD/IA to switch on end-of-packet.
``forcedma``
Use asynchronous DMA for all operations when possible.
``precompile``
Compile one shader variant at shader creation.
``nowc``
Disable GTT write combining
``check_vm``
Check VM faults and dump debug info.
``unsafemath``
Enable unsafe math shader optimizations
``R600_DEBUG_COMPUTE``
if set to ``true``, various compute-related debug information will
be printed to stderr. Defaults to ``false``.
``R600_DUMP_SHADERS``
if set to ``true``, NIR shaders will be printed to stderr. Defaults
to ``false``.
``R600_HYPERZ``
If set to ``false``, disables HyperZ optimizations. Defaults to ``true``.
``R600_NIR_DEBUG``
a comma-separated list of named flags, which do various things:
``instr``
Log all consumed nir instructions
``ir``
Log created R600 IR
``cc``
Log R600 IR to assembly code creation
``noerr``
Don't log shader conversion errors
``si``
Log shader info (non-zero values)
``reg``
Log register allocation and lookup
``io``
Log shader in and output
``ass``
Log IR to assembly conversion
``flow``
Log control flow instructions
``merge``
Log register merge operations
``nomerge``
Skip register merge step
``tex``
Log texture ops
``trans``
Log generic translation messages
Other Gallium drivers have their own environment variables. These may
change frequently so the source code should be consulted for details.
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