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docs: Add documentation for Rusticl's env variables

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Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19149>
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Karol Herbst 2022-10-19 00:10:12 +02:00 • committed by Marge Bot
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17
docs/envvars.rst
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@ -548,6 +548,23 @@ Clover environment variables
appended after the options set by the OpenCL program in
``clLinkProgram``.
Rusticl environment variables
-----------------------------
:envvar:`RUSTICL_DEVICE_TYPE`
allows to overwrite the device type of devices. Possible values are
`accelerator`, `cpu`, `custom` and `gpu`
:envvar:`RUSTICL_CL_VERSION`
overwrites the auto detected OpenCL version of all devices. Specified as
`major.minor`.
:envvar:`RUSTICL_ENABLE`
a comma-separated list of drivers to enable CL on. An optional list of
comma-separated integers can be passed per driver to specify which devices
to enable. Examples:
- `RUSTICL_ENABLE=iris` (enables all iris devices)
- `RUSTICL_ENABLE=iris:1,radeonsi:0,2` (enables second iris and first
and third radeonsi device)
Nine frontend environment variables
-----------------------------------