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authorTimothy Arceri <[email protected]>2017-05-18 15:00:40 +1000
committerTimothy Arceri <[email protected]>2017-05-20 08:35:51 +1000
commita74300c7ff256b417079134f7bd9aea91153025b (patch)
treedc36d51a04a022c9604d59ac7e3df2d59e653a7c /docs
parent8cad301a3ea4d2cf6297200f5eb5e229928b9120 (diff)
mesa: add an env var to force cache fallback
For the gallium state tracker a tgsi binary may have been evicted from the cache to make space. In this case we would take the fallback path and recompile/link the shader. On i965 there are a number of reasons we can get to the program upload stage and have neither IR nor a valid cached binary. For example the binary may have been evicted from the cache or we need a variant that wasn't previously cached. This environment variable enables us to force the fallback path that would be taken in these cases and makes it easier to debug these otherwise hard to reproduce scenarios. Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'docs')
-rw-r--r--docs/shading.html2
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/shading.html b/docs/shading.html
index 7e3d2e4fced..c789102e641 100644
--- a/docs/shading.html
+++ b/docs/shading.html
@@ -50,6 +50,8 @@ execution. These are generally used for debugging.
The filenames will be "shader_X.vert" or "shader_X.frag" where X
the shader ID.
<li><b>cache_info</b> - print debug information about shader cache
+<li><b>cache_fb</b> - force cached shaders to be ignored and do a full
+ recompile via the fallback path</li>
<li><b>uniform</b> - print message to stdout when glUniform is called
<li><b>nopvert</b> - force vertex shaders to be a simple shader that just transforms
the vertex position with ftransform() and passes through the color and