On Sun, May 17, 2009 at 07:44:20AM +0800, Andrew Morton wrote: > On Mon, 04 May 2009 18:40:52 +0200 Michel D__nzer <mic...@daenzer.net> wrote: > > > On Mon, 2009-05-04 at 18:23 +0200, Karsten Mehrhoff wrote: > > > On Mon, 04 May 2009 17:07:40 +0200, Michel D__nzer wrote: > > > > On Mon, 2009-05-04 at 08:31 +0200, Karsten Mehrhoff wrote: > > > >> On Mon, 04 May 2009 03:41:51 +0200, Shaohua Li wrote: > > > >>> On Fri, May 01, 2009 at 09:22:19PM +0800, kaw...@gmx.de wrote: > > > >>>>> On Thu, 2009-04-30 at 17:59 -0700, Andrew Morton wrote: > > > >>>>>> On Thu, 30 Apr 2009 10:51:47 +0200 > > > >>>>>> Karsten Mehrhoff wrote: > > > >>>>>> > > > >>>>>>> [1.] > > > >>>>>>> PROBLEM: No more agp card functionality with the patch 2.6.29.2 of > > > >>>>>> 'a/drivers/char/agp/generic.c' > > > >>>>>>> > > > >>>>>>> [2.] > > > >>>>>>> I compiled the kernel 2.6.29.2 with my .config of 2.6.29.1 and run > > > >>>>>> into problems with the speed of my ATI RADEON 9600 (rv350) > > > >>>>>>> > > > >>>>>> > > > >>>>> > > > >>>>> Is your problem speed issue ? ie just a slowdown ? Or does AGP stop > > > >>>>> working with this patch ? Slowdown is expected from this patch but > > > >>>>> it should hurt too much. > > > >>>>> > > > >>>> > > > >>>> 2.6.29.1 | 2.6.29.2 > > > >>>> -------- | -------- > > > >>>> glxgears ~ 2900 FPS | ~ 75 FPS > > > >>>> glxgears -fullscreen ~ 500 FPS | ~ 11 FPS > > > >>> Does this patch alone give so huge slowdown? From my little knowledge, > > > >>> xserver > > > >>> does agp pages allocation only at startup. > > > >> > > > >> I only reverted this patch in the source file > > > >> (/drivers/char/agp/generic.c) and got back my old speed on 2.6.29.2. > > > > > > > > Is the DRI enabled in both cases? Compare the Xorg.0.log file and the > > > > output of > > > > > > > > dmesg|grep -e agp -e drm > > > > > > > > > > > > > ********************************* > > > 2.6.29.2 (original) > > > ********************************* > > > > > > $ dmesg|grep -e agp -e drm > > > $ dmesg|grep agp > > > [ 0.861997] Linux agpgart interface v0.103 > > > [ 10.893793] agpgart: Detected NVIDIA nForce2 chipset > > > [ 10.939070] agpgart-nvidia 0000:00:00.0: AGP aperture is 64M @ > > > 0xe0000000 > > > > No drm lines? > > > > > > > $ glxinfo | grep direct > > > direct rendering: Yes > > > > This is not a sufficient test anymore since swrast_dri.so is direct > > rendering but not hardware accelerated. Something like > > > > glxinfo|grep render > > > > can be used to verify both direct rendering and hardware acceleration > > (the latter but not the former is also possible with AIGLX). > > > > > > > (EE) RADEON(0): [agp] AGP failed to initialize. Disabling the DRI. > > > > [...] > > > > > For me it seems that agp failed to initialize because of the patch. > > > > Indeed. > > > > Guys, can we rev this up again please? > > AFAICT we have two problems and at least one of them is in 2.6.29.x and > is presumably headed into 2.6.30 as well. the slowdown Karsten saw is because dri is disabled. I can't image why zero page will cause such issue. please double check if this is really caused by 59de2bebabc5027f93df999d59cc65df591c3e6e.
Thanks, Shaohua ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel