drm/nouveau/pmu: switch to instanced constructor

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

drm/nouveau/pmu: initialise SW state for falcon from constructor

This will allow us to register the falcon with ACR, and further customise
its behaviour by providing the nvkm_falcon_func structure directly.

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

drm/nouveau/pmu: select implementation based on available firmware

This will allow for further customisation of the subdev depending on what
firmware is available.

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

drm/nouveau/pmu/gt215-: abstract detection of whether reset is needed

GT215, GF100-GP100, and GP10x are all different.

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

drm/nouveau/pmu/gt215: fix reset

The NV_PMC_ENABLE bit for PMU did not appear until GF100, and some other
unknown register needs to be poked instead.

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

drm/nouveau/pmu: move ucode handling into gt215 implementation

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

drm/nouveau/pmu: remove whitelist for PGOB-exit WAR, enable by default

NVIDIA have indicated that the workaround is required on all GK10[467]
boards that have the PGOB fuse set.

I've left the commandline option in place for now, as paranoia.

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

drm/nouveau/pmu/gk104: check fuse to determine presence of PGOB

Not 100% confirmed, but seems to match from the few boards I've looked
at so far.

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

drm/nouveau/device: import pciid list and integrate quirks with it

PCI IDs taken from the NVIDIA binary driver, with permission.

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

drm/nouveau/pmu: convert to new-style nvkm_subdev

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

drm/nouveau/pmu: switch to subdev printk macros

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

drm/nouveau/pmu: switch to new-style timer macros

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

drm/nouveau/pmu: switch to device pri macros

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

drm/nouveau/subdev: add direct pointer to nvkm_device

Will be utilised in upcoming commits to remove the need for heuristics
to lookup the device a subdev belongs to.

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

drm/nouveau/pmu/gk104: implement a hackish workaround for a hw bug

Only a handful of machines have this enabled by default, where it's been
proven to work. The workaround can be explicitly enabled with a module
option also.

Still waiting on feedback from NVIDIA for a proper idea of exactly what
this fix is doing, and how to implement it properly.

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

drm/nouveau/pmu: 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>

drm/nouveau/pmu: rename from pwr (no binary change)

Switch to NVIDIA's name for the device.

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>