From 90d185544c897ca0b4c3c677fed4290330bb0706 Mon Sep 17 00:00:00 2001 From: Chris Forbes Date: Sun, 24 Nov 2013 18:12:49 +1300 Subject: docs: describe the INTEL_* envvars that do exist V2: drop description of `fall` and `wm`, which have been removed by the previous patch; describe `stats`. Signed-off-by: Chris Forbes Reviewed-by: Kenneth Graunke --- docs/envvars.html | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'docs') diff --git a/docs/envvars.html b/docs/envvars.html index 81e74e6f484..3cc3c8096e4 100644 --- a/docs/envvars.html +++ b/docs/envvars.html @@ -121,6 +121,38 @@ See the Xlib software driver page for details.

i945/i965 driver environment variables (non-Gallium)

    +
  • INTEL_NO_HW - if set to 1, prevents batches from being submitted to the hardware. + This is useful for debugging hangs, etc.
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  • INTEL_DEBUG - a comma-separated list of named flags, which do various things: +
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    • tex - emit messages about textures.
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    • state - emit messages about state flag tracking
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    • blit - emit messages about blit operations
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    • miptree - emit messages about miptrees
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    • perf - emit messages about performance issues
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    • perfmon - emit messages about AMD_performance_monitor
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    • bat - emit batch information
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    • pix - emit messages about pixel operations
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    • buf - emit messages about buffer objects
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    • reg - emit messages about regions
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    • fbo - emit messages about framebuffers
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    • fs - dump shader assembly for fragment shaders
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    • gs - dump shader assembly for geometry shaders
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    • sync - emit messages about synchronization
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    • prim - emit messages about drawing primitives
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    • vert - emit messages about vertex assembly
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    • dri - emit messages about the DRI interface
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    • sf - emit messages about the strips & fans unit (for old gens, includes the SF program)
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    • stats - enable statistics counters. you probably actually want perfmon or intel_gpu_top instead.
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    • urb - emit messages about URB setup
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    • vs - dump shader assembly for vertex shaders
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    • clip - emit messages about the clip unit (for old gens, includes the CLIP program)
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    • aub - dump batches into an AUB trace for use with simulation tools
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    • shader_time - record how much GPU time is spent in each shader
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    • no16 - suppress generation of 16-wide fragment shaders. useful for debugging broken shaders
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    • blorp - emit messages about the blorp operations (blits & clears)
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    • nodualobj - suppress generation of dual-object geometry shader code
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