This shouldn't have been needed ever since we started executing the
DisableLT script when shutting down heads.

Testing of the board this was originally written for seems to agree.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

Training/Untraining will be hooked up to the routing logic, which
doesn't allow us to pass in a data rate.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

These exist to give NVKM information on the set of display paths that
the DD needs to be active at any given time.

Previously, the supervisor attempted to determine this solely from OR
state, but there's a few configurations where this information on its
own isn't enough to determine the specific display paths in question:

- ANX9805, where the PIOR protocol for both DP and TMDS is TMDS.
- On a device using DCB Switched Outputs.
- On GM20x and newer, with a crossbar between the SOR and macro links.

After this commit, the DD tells NVKM *exactly* which display path it's
attempting a modeset on.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

All of the necessary hw-specific logic is now handled at the output
resource level, so all of this can go away.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

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

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

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

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

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

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

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

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

Also removes the user-facing methods to these controls, as they're not
currently utilised by the DD anyway.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This data will be used by essentially every part of the supervisor
handling process.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

This essentially (unless the link becomes unstable and needs to be
re-trained) gives us a single entry-point to link training, during
supervisor handling, where we can ensure all routing is up to date.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

An upcoming commit will limit link training to only when the sink is
meant to be displaying an image.

We still need IRQs enabled even when the link isn't trained (for MST
messages), but don't want to train the link unnecessarily.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

The aim here is to protect the OR against locking up when something
unexpected happens (such as the display disappearing during modeset,
or the DD misbehaving).
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Saves some trips across the aux channel.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This struct doesn't hold link configuration data anymore, so we can
limit its use to internal DP training (anx9805 handles training for
external DP).
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

We care about this information outside of link training.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This hasn't been used since atomic.

We may want to re-implement "fast" DPMS at some point, but for now,
this just gets in the way.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This essentially replicates our current behaviour in a way that's
compatible with the new model that's emerging, so that we're able
to start porting the hw-specific functions to it.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Upcoming commits make supervisor handling share code between the NV50
and GF119 implementations.  Because of this, and a few other cleanups,
we need to allow some additional customisation.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

In order to properly support the SOR -> SOR + pad macro separation
that occurred with GM20x GPUs, we need to separate OR handling out
of the output path code.

This will be used as the base to support ORs (DAC, SOR, PIOR).
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

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

Primarily intended as a way to pass per-head state around during
supervisor handling, and share logic between NV50/GF119.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This is to allow hw-specific code to instantiate output resources first,
so we can cull unsupported output paths based on them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

Not all users of nvkm_output_dp have been changed here.  The remaining
ones belong to code that's disappearing in upcoming commits.

This also modifies the debug level of some messages.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This isn't technically "output", but, "display/output path".

Not all users of nvkm_output have been changed here.  The remaining
ones belong to code that's disappearing in upcoming commits.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Upcoming changes to split OR from output path drastically change the
placement of various operations.

In order to make the real changes clearer, do the moving around part
ahead of time.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

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

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

This will ensure unspecified args are easily identified.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

As of DCB 4.1, these are not the same thing.

Compatibility temporarily in place until callers have been updated.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>