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docs: Clean up environment variable docs for Intel drivers. 

- Change section name to be more general
- Remove INTEL_SCALAR_VS (dropped as part of release 20.3)
- Sort alphabetically

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Mike Blumenkrantz <michael.b.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13043>
This commit is contained in:
Luis Felipe Strano Moraes 2021-09-24 12:55:23 -07:00 committed by Marge Bot
parent 40a93e271c
commit 884198cb26
1 changed files with 8 additions and 10 deletions
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18
docs/envvars.rst
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@ -232,12 +232,13 @@ the :doc:`Xlib software driver page <xlibdriver>` for details.
:envvar:`MESA_GLX_ALPHA_BITS`
specifies default number of bits for alpha channel.
i945/i965 driver environment variables (non-Gallium)
Intel driver environment variables
----------------------------------------------------
:envvar:`INTEL_NO_HW`
if set to 1, true or yes, prevents batches from being submitted to the
hardware. This is useful for debugging hangs, etc.
:envvar:`INTEL_BLACKHOLE_DEFAULT`
if set to 1, true or yes, then the OpenGL implementation will
default ``GL_BLACKHOLE_RENDER_INTEL`` to true, thus disabling any
rendering.
:envvar:`INTEL_DEBUG`
a comma-separated list of named flags, which do various things:
@ -334,8 +335,9 @@ i945/i965 driver environment variables (non-Gallium)
``vs``
dump shader assembly for vertex shaders
:envvar:`INTEL_SCALAR_VS` (or ``TCS``, ``TES``, ``GS``)
force scalar/vec4 mode for a shader stage (Gen8-9 only)
:envvar:`INTEL_NO_HW`
if set to 1, true or yes, prevents batches from being submitted to the
hardware. This is useful for debugging hangs, etc.
:envvar:`INTEL_PRECISE_TRIG`
if set to 1, true or yes, then the driver prefers accuracy over
performance in trig functions.
@ -353,10 +355,6 @@ i945/i965 driver environment variables (non-Gallium)
The success of assembly override would be signified by "Successfully
overrode shader with sha1 <sha1>" in stderr replacing the original
assembly.
:envvar:`INTEL_BLACKHOLE_DEFAULT`
if set to 1, true or yes, then the OpenGL implementation will
default ``GL_BLACKHOLE_RENDER_INTEL`` to true, thus disabling any
rendering.
Radeon driver environment variables (radeon, r200, and r300g)