On 11/23/2013 09:13 PM, Chris Forbes wrote: > Signed-off-by: Chris Forbes <[email protected]> > --- > docs/envvars.html | 32 ++++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/docs/envvars.html b/docs/envvars.html > index 81e74e6..d831826 100644 > --- a/docs/envvars.html > +++ b/docs/envvars.html > @@ -121,6 +121,38 @@ See the <a href="xlibdriver.html">Xlib software driver > page</a> for details. > <h2>i945/i965 driver environment variables (non-Gallium)</h2> > > <ul> > +<li>INTEL_NO_HW - if set to 1, prevents batches from being submitted to the > hardware. > + This is useful for debugging hangs, etc.</li> > +<li>INTEL_DEBUG - a comma-separated list of named flags, which do various > things: > +<ul> > + <li>tex - emit messages about textures.</li> > + <li>state - emit messages about state flag tracking</li> > + <li>blit - emit messages about blit operations</li> > + <li>miptree - emit messages about miptrees</li> > + <li>fall/perf - emit messages about performance issues</li>
Not sure if the old names are worth documenting. I guess if people find old text on wikis or something that says INTEL_DEBUG=fall, they'll know what it means. We might want to actually just drop the 'fall' name at this point...people seem to have moved over completely. > + <li>perfmon - emit messages about AMD_performance_monitor</li> > + <li>bat - emit batch information</li> > + <li>pix - emit messages about pixel operations</li> > + <li>buf - emit messages about buffer objects</li> > + <li>reg - emit messages about regions</li> > + <li>fbo - emit messages about framebuffers</li> > + <li>fs/wm - dump shader assembly for fragment shaders</li> I've pretty much universally moved over to INTEL_DEBUG=fs too, but I don't know about others. > + <li>gs - dump shader assembly for geometry shaders</li> > + <li>sync - emit messages about synchronization</li> > + <li>prim - emit messages about drawing primitives</li> > + <li>vert - emit messages about vertex assembly</li> > + <li>dri - emit messages about the DRI interface</li> > + <li>sf - emit messages about the strips & fans unit (for old gens, > includes the SF program)</li> > + <li>stats - ?</li> This enables statistics counters for the vertex fetcher (on all generations), and for other units on Gen4-5. That said, the counters aren't exposed other than reading registers, and on Gen6+ you can't even use intel_reg_read due to hardware contexts. Frankly, it seems pretty useless, and I think we ought to delete it. > + <li>urb - emit messages about URB setup</li> > + <li>vs - dump shader assembly for vertex shaders</li> > + <li>clip - emit messages about the clip unit (for old gens, includes the > CLIP program)</li> > + <li>aub - dump batches into an AUB trace for use with simulation > tools</li> > + <li>shader_time - record how much GPU time is spent in each shader</li> > + <li>no16 - suppress generation of 16-wide fragment shaders. useful for > debugging broken shaders</li> > + <li>blorp - emit messages about the blorp operations (blits & > clears)</li> > + <li>nodualobj - suppress generation of dual-object geometry shader > code</li> > +</ul> > </ul> Thanks for doing this, Chris. For the series: Reviewed-by: Kenneth Graunke <[email protected]> _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
