[Nouveau] [PATCH] Add PFIFO and PGRAPH pausing methods
martin.peres at free.fr
Sun Jan 9 15:56:12 PST 2011
I'm still working on getting the reclocking work done right. There are
several parts I identify:
- Pausing PFIFO (with its caches), pause PGRAPH and wait for idle
- Stop some PLL (I guess it is more, physically disconnect them from the
engines) using the 0xc040 register.
- reclock memory
- reclock the other engines
- Make sure the display doesn't blow up
Depending on the cards, I have completed all of the steps or none.
Anyway, pausing PFIFO and PGRAPH works well on all the card I tested and
so, I would like it to be pushed.
I have a new theory upon the PLL_SUPERVISOR(0xc040) that I want to test.
When I'm done with this, I'll put together a patch for it and continue
on the other steps.
Please provide me with some feedback on the patch or push it if nothing
PS: I'm quite busy at the moment, I'll write an in-depth mail when I've
verified my theories and got proper support on other cards than the nv86
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