-------- Original-Nachricht -------- > Datum: Wed, 16 Dec 2009 10:54:15 +0100 > Von: "Michel Dänzer" <mic...@daenzer.net> > An: Gerhard Pircher <gerhard_pirc...@gmx.net> > CC: dri-devel@lists.sourceforge.net > Betreff: Re: Testing an AGPGART driver with radeon.test=1
> > > > I guess the memory used for this test is allocated by the AGP > > > > layer and not by the radeon driver? > > > > > > No, it's allocated by radeon/TTM. > > And this memory is mapped uncacheable by radeon/TTM? > > Yes. Well, in short I fail to see now how radeon/TTM allocates and maps the memory used for the test into the AGP GART resp. which functions are called the way down from the radeon driver to the AGPGART driver (radeon->TTM->(DRM?)->AGP). I guess I should ask Google for some TTM/DRM documentation. :) > > Doesn't that limit the maximum usable memory for radeon/TTM to the > > vmalloc space? > > That could only be relevant for kernel mappings. The kernel only maps > buffer object (BO) memory when/while necessary, which usually isn't the > case. Okay. Thanks, Gerhard -- Preisknaller: GMX DSL Flatrate für nur 16,99 Euro/mtl.! http://portal.gmx.net/de/go/dsl02 ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
