Radeon DRM Power Management Moves Along

[yimm]

These patches do apply, but during kernel compilation they block depmod (without patches all compilation work).

INSTALL /home/yimm/compilation/kernel-pm-patches/pkg/lib/firmware/radeon/RV730_me.bin
INSTALL /home/yimm/compilation/kernel-pm-patches/pkg/lib/firmware/radeon/RV710_pfp.bin
INSTALL /home/yimm/compilation/kernel-pm-patches/pkg/lib/firmware/radeon/RV710_me.bin
DEPMOD 2.6.33-rc4-rc

And nothing...
Ideas?

[Zajec]

Patches can not block depmod. Just wait longer for it to finish.

[yimm]

But I have already waited 15 minutes, and always at the same step; Without them, it takes 1-2 seconds
So I will retry by waiting more time.

[darkbasic]

First patch is already in drm-radeon-testing.

How to check if it really downclok the gpu/memory?

[Zajec]

First patch is already in drm-radeon-testing.

How to check if it really downclok the gpu/memory?

cat /sys/kernel/debug/dri/0/radeon_pm_info

[darkbasic]

Groan... I forgot to enable kernel debugging :-(

[darkbasic]

I enabled kernel debugging but /sys/kernel/debug/ is still empty.

[Zajec]

mount -t debugfs none /sys/kernel/debug/

[darkbasic]

gentoo niko # cat /sys/kernel/debug/dri/0/radeon_pm_info
state: PM_STATE_DISABLED
default engine clock: 776000 kHz
current engine clock: 769500 kHz
default memory clock: 1126000 kHz
current memory clock: 1125000 kHz

Then I loaded nexuiz after typing:

gentoo niko # sleep 60 && cat /sys/kernel/debug/dri/0/radeon_pm_info
state: PM_STATE_DISABLED
default engine clock: 776000 kHz
current engine clock: 769500 kHz
default memory clock: 1126000 kHz
current memory clock: 1125000 kHz

Clocks are still the same.
Anyway, how to change the state? What's PM_STATE_DISABLED?

[Zajec]

gentoo niko # cat /sys/kernel/debug/dri/0/radeon_pm_info
state: PM_STATE_DISABLED
default engine clock: 776000 kHz
current engine clock: 769500 kHz
default memory clock: 1126000 kHz
current memory clock: 1125000 kHz

Then I loaded nexuiz after typing:

gentoo niko # sleep 60 && cat /sys/kernel/debug/dri/0/radeon_pm_info
state: PM_STATE_DISABLED
default engine clock: 776000 kHz
current engine clock: 769500 kHz
default memory clock: 1126000 kHz
current memory clock: 1125000 kHz

Clocks are still the same.
Anyway, how to change the state? What's PM_STATE_DISABLED?

You have to enable it using dynpm parameter (dynpm=1). You can set this on loading module time (modprobe radeon dynpm=1), or in GRUB (radeon.dynpm=1) or in /etc/modprobe.d/some.file