Addendum Up-/Downclocking: # cat /sys/module/radeon/parameters/dynclks -1
Value of "-1" means dynamic clocking (dynclks) is not set. Two options to activate dynamic clocking: [1] At modprobe-time: (tested in runlevel-3: booted with nomodeset): # modprobe -r -v radeon <--- unload kernel-module # modprobe -v radeon modeset=1 dynclks=1 <--- load with new module-options # dmesg | egrep -i 'dynamic clocking|power management' [drm] radeon: dynamic clocking enabled [drm] radeon: power management initialized [2] At boot-time: Add "modeset=1" and "dynclks=1" to your Kernel-command-line (in most cases grub, see grub documentation). Depending on distribution and kernel it might be "radeon.modeset=1" and "radeon.dynclks=1". Unfortunately, with dynamic clocking enabled, I have still no luck with upclocking: # cat /sys/kernel/debug/dri/*/radeon_pm_info engine clock: 391500 kHz memory clock: 297000 kHz engine clock: 391500 kHz memory clock: 297000 kHz Thanks Rafal (sorry don't know how to activate that crossed L-sign in your first name) "Zajec" for explanation on IRC. - Sedat - On Sun, Dec 13, 2009 at 11:00 PM, Sedat Dilek <sedat.di...@googlemail.com> wrote: > Hi, > > I tried v3 of the radeon PM patch from [1]. > Here my feeback: > > # lspci -nnvv | grep "VGA controller" > 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M52 > [Mobility Radeon X1300] [1002:714a] (prog-if 00 [VGA controller]) > > # mount -t debugfs none /sys/kernel/debug/ > # ln -s /sys/kernel/debug /debug > > # find /debug/ -name radeon_pm_info > /debug/dri/0/radeon_pm_info > /debug/dri/64/radeon_pm_info > > # cat /sys/kernel/debug/dri/*/radeon_pm_info > engine clock: 391500 kHz > memory clock: 297000 kHz > engine clock: 391500 kHz > memory clock: 297000 kHz > > From the backlog [3]: > 13:32 #radeon: < Zajec> dileX: Wikipedia says your default engine > clock is 450MHz... your logs shows 391MHz which should mean > downclocking working :) > > While starting glxgears upclocking seems not to work, yet. > Good job, anyway! > > Kind Regards, > - Sedat - > > [1] 0001-drm-radeon-kms-add-dynamic-engine-reclocking-v3.patch > http://marc.info/?l=dri-devel&m=126063445301253&w=2 > [2] debugfs mount point > http://lwn.net/Articles/323307/ > [3] Backlog #radeon/freenode > http://people.freedesktop.org/~cbrill/dri-log/index.php?date=2009-12-13&channel=radeon > ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
