13 Commits

Author SHA1 Message Date
Ben Skeggs
53b0cc46f2 drm/nouveau/disp/gm200-: enforce identity-mapped SOR assignment for LVDS/eDP panels
Fixes eDP backlight issues on more recent laptops.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-09-07 06:54:28 +10:00
Ben Skeggs
e04cfdc9b7 drm/nouveau/disp: fix DP disable race
If a HPD pulse signalling the need to retrain the link occurs between
the KMS driver releasing the output and the supervisor interrupt that
finishes the teardown, it was possible get a NULL-ptr deref.

Avoid this by marking the link as inactive earlier.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-09-07 06:54:28 +10:00
Ben Skeggs
606557708f drm/nouveau/disp: remove unused struct member
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-09-07 06:54:28 +10:00
Ben Skeggs
587f577e0b drm/nouveau/disp: add tv encoders to output resource mapping
We don't support them on G80, but we need to add them to the mapping to
avoid triggering a WARN_ON() on GPUs where the ports are present.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-07-24 12:15:24 +10:00
Ben Skeggs
2863204c62 drm/nouveau/disp/gm200-: allow non-identity mapping of SOR <-> macro links
Finally, everything should be in place to handle this.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-06-16 14:05:01 +10:00
Ben Skeggs
6c22ea3747 drm/nouveau/disp: introduce acquire/release display path methods
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>
2017-06-16 14:04:57 +10:00
Ben Skeggs
3c66c87dc9 drm/nouveau/disp: remove hw-specific customisation of output paths
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>
2017-06-16 14:04:57 +10:00
Ben Skeggs
01a976376b drm/nouveau/disp: identity-map display paths to output resources
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>
2017-06-16 14:04:49 +10:00
Ben Skeggs
d7ce92e273 drm/nouveau/disp: rename nvkm_output to nvkm_outp
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>
2017-06-16 14:04:46 +10:00
Ben Skeggs
f2c906fc0c drm/nouveau/disp: transition outp/conn away from being based on nvkm_object
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-28 12:40:30 +10:00
Ben Skeggs
2aa5eac516 drm/nouveau/i2c: transition pad/ports away from being based on nvkm_object
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-28 12:40:29 +10:00
Ben Skeggs
878da15adb drm/nouveau/disp: namespace + nvidia gpu names (no binary change)
The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver.  This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).

Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.

A comparison of objdump disassemblies proves no code changes.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-22 12:18:01 +10:00
Ben Skeggs
c39f472e9f drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes)
The symlinks were annoying some people, and they're not used anywhere
else in the kernel tree.  The include directory structure has been
changed so that symlinks aren't needed anymore.

NVKM has been moved from core/ to nvkm/ to make it more obvious as to
what the directory is for, and as some minor prep for when NVKM gets
split out into its own module (virt) at a later date.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-22 12:15:10 +10:00