NVIDIA appear to have tweaked the algorithm from GF110, this implements
the previous algorithm for them still.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Thanks to Vincent Pelletier for pointing this out and providing a proof of
concept patch on the list.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Done after discussion with Roy.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Solves blinking on reclocking memory. The value set is an underestimate, but
with non-reduced vblanking this should give us plenty of time
Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

More accurate as to the function of the opcodes.  Not only is FB disabled,
but the host is prevented from touching the GPU.  An upcoming patch for
Kepler will also halt PFIFO (as NVIDIA does).
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

V2: always call post correctly even if pre fails
V3: move function prototype to nva3.h
Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>

nv92 hardware has only 16 interrupt lines, while nv94 and later
has 32. Accessing 0xe0c{0,4} registers on nv92 can lead to incorrect
PDISP setup. This is a regression introduced with

commit 9d0f5ec9ee0fd5dc5fc1cc2cf559286431e406e3
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Mon May 12 15:22:42 2014 +1000

    gpio: split g92 class from nv50

Reported-by: estece on #nouveau
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

*when* this is done is only a rough approximation of what the binary driver
does.. need to investigate more to see if it matters
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Awful, awful.  But, on the GK106 I have, some upcoming patches show
that this is actually necessary after all.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

All the other chipsets should be moved over to this too.  It's not needed
yet for the upcoming commits, so left this step as it'll conflict badly
with Roy's GT21x reclocking work.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Fixes type/mask calculation being based on uninitialised data for VGA
outputs.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

NVIDIA binary driver appears to, not sure if it's for a good reason, but
grasping at straws for some GDDR5 reclocking issues here.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

V2: Always disable DLL reset
Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Time measured from disabling FB to re-enabling, PPWR_IN reveals status of
heads at the end of script. Helps debug various issues (like flicker).
Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Needs to be done after wait-for-VBLANK, and NVA3 requires register writes
in between.

Rather than hard-coding register writes, just split out fb_disable and
fb_enable.

v2. Squashed "fb/ramnve0: disable fb before reclocking"
Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMartin Peres <martin.peres@free.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

One of my nv92 has a calibrated internal sensor but it displays 0°C
as the default values use sw calibration values to force the temperature
to 0.

Since we cannot read the temperature from the adt7473 present on this board,
let's re-enable the internal reading!
Signed-off-by: NMartin Peres <martin.peres@free.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We will use this subdev to disable temperature reading on cards that did not
get a sensor calibration in the factory.

v2:
- rename "nouveau_fuse_rd32" to "gxXXX_fuse_rd32" as adviced by Christian Costa
- fold the code a little as adviced by Emil Velikov
Signed-off-by: NMartin Peres <martin.peres@free.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NRoy Spliet <rspliet@eclipso.eu>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>