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| author | Danylo Piliaiev <danylo.piliaiev@globallogic.com> | 2020-09-28 19:29:42 +0300 |
|---|---|---|
| committer | Marge Bot <eric+marge@anholt.net> | 2020-09-29 09:57:41 +0000 |
| commit | 2c08404f38857de55abd98da077b8edbe6197059 (patch) | |
| tree | 5aaf5580fba9cd784ed365d1659f2f6130c8b057 /docs/envvars.rst | |
| parent | 1a19fae8680467e89dfea25bef39b41b21908dc3 (diff) | |
docs: add INTEL_SHADER_ASM_READ_PATH description
It was implemented in
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/955
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6895>
Diffstat (limited to 'docs/envvars.rst')
| -rw-r--r-- | docs/envvars.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/docs/envvars.rst b/docs/envvars.rst index c0f568aa37a..fa414bd347b 100644 --- a/docs/envvars.rst +++ b/docs/envvars.rst @@ -331,6 +331,20 @@ i945/i965 driver environment variables (non-Gallium) ``INTEL_PRECISE_TRIG`` if set to 1, true or yes, then the driver prefers accuracy over performance in trig functions. +``INTEL_SHADER_ASM_READ_PATH`` + if set, determines the directory to be used for overriding shader + assembly. The binaries with custom assembly should be placed in + this folder and have a name formatted as ``sha1_of_assembly.bin``. + The sha1 of a shader assembly is printed when assembly is dumped via + corresponding ``INTEL_DEBUG`` flag (e.g. ``vs`` for vertex shader). + A binary could be generated from a dumped assembly by ``i965_asm``. + For ``INTEL_SHADER_ASM_READ_PATH`` to work it is necessary to enable + dumping of corresponding shader stages via ``INTEL_DEBUG``. + It is advised to use ``nocompact`` flag of ``INTEL_DEBUG`` when + dumping and overriding shader assemblies. + The success of assembly override would be signified by "Successfully + overrode shader with sha1 <sha1>" in stderr replacing the original + assembly. Radeon driver environment variables (radeon, r200, and r300g) ------------------------------------------------------------- |