Mailinglist Archive: radeonhd (408 mails)

[Alex Deucher <alexdeucher@xxxxxxxxx>]

2009/6/29 Dariem Pérez Herrera <dariemp@xxxxxx>:
> Alex Deucher escribió:
> > 2009/6/26 Dariem Pérez Herrera <dariemp@xxxxxx>:
> >
> > > I also attached my Xorg.0.log with -logverbose 7. I can see there are
> > > many
> > > functions been called which names suggest they are made for RS690, not
> > > RS600, so it is possible that MC cannot go idle because of this
> > > (incorrectly
> > > use of RS690 register addresses instead RS600 addresses). I'm not
> > > familiar
> > > with radeonhd source code, so trying to fix MC make me lost into the code
> > > ocean. Any mentorship or documentation available so I can try?
> >
> > The radeon driver should have the correct bits for indirect MC access
> > on RS690/740 and RS600.  Note that RS690/740 and RS600 are different
> > WRT MC setup.  See:
> > RADEONINMC()
> > RADEONOUTMC()
> > radeon_get_mc_idle()
> > in radeon_driver.c for the relevant regs and bits.
> >
> > Alex
>
> Alex,
> What about the difference between MMIO register space used by radeon driver,
> and PCIe register space used by radeonhd? Is there any way to convert from
> the first to the second and vice-versa? Is it relevant at all?

I'm not sure the MC registers aliases in the pcie space work or not.
As far as I know the index regs in MMIO space should be used.  Note
that the MC index regs live at different offsets in MMIO space for
each chip family.

Alex
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