clk/gk104: only touch divider for mode we'll be using

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
ibus/gk104: increase various random timeouts

Fixes (at least) PTHERM accesses timing out at higher clock speeds.

Values and registers taken from what the binary driver does.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
fb/ram/gk104: bash mpll bit 31 on

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
pwr: tidy

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
pwr/gk104: implement PGOB disable method

As documented at:

ftp://download.nvidia.com/open-gpu-doc/gk104-disable-graphics-power-gating/1/gk104-disable-graphics-power-gating.txt

NVIDIA were not able document the steps necessary to detect whether this
is required or not at this time.  However, they did confirm that this
procedure is safe to perform unconditionally on GK104/6.  GK107 does not
have the power gating feature, and it was recommended that we do not
perform these steps there as the effects were not verified.

The disable path is from observing the binary driver, and not
documented in the link above.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gr/gk104: disable PGOB at init time

This removes the previous hack that worked on some boards.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gr/gk110b: initvals differ from gk110

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gr/gk208-: stop touching 0x260 inappropriately

As a side note.. It's a bit hard to figure out how to name this commit..
GK20A is NVEA, which is before NV108 (GK208).. Confusing.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gr/gf100-: report class data to host on fwmthd failure

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gr/nv50: fix overlap while zeroing zcull regions

The specified stride was not correct, resulting in erases overlapping
and part of the zcull regions being not erased at all.

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gr/nv50: remove an unneeded write while initialising PGRAPH

The blob does not seem to write at that place for my NVAC, though it
does for my NV96, agreeing with what is done in the if/else structure
below. I guess someone forgot to remove the line when the if/else was
put in place.

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>