drm/nouveau/fifo/gk104-: directly use new recovery code for mmu faults

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

drm/nouveau/fifo/gk104-: reset all engines a killed channel is still active on

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

drm/nouveau/fifo/gk104-: refactor recovery code

This will serve as a basis for implementing some improvements to how
we recover the GPU from channel errors.

Signed-off-by: Ben S

drm/nouveau/fifo/gk104-: refactor recovery code

This will serve as a basis for implementing some improvements to how
we recover the GPU from channel errors.

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

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drm/nouveau/fifo/gk104-: better detection of chid when parsing engine status

The previous commit simply changes the interface, but should result in
the same behaviour as previously. Thi

drm/nouveau/fifo/gk104-: better detection of chid when parsing engine status

The previous commit simply changes the interface, but should result in
the same behaviour as previously. This commit has been split out from
it as it can result in a different channel being selected.

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

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drm/nouveau/fifo/gk104-: separate out engine status parsing

We'll be wanting to reuse this logic in more places.

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

drm/nouveau/fifo/gf100-: provide notification to user if channel is killed

There are instances (such as non-recoverable GPU page faults) where
NVKM decides that a channel's context is no

drm/nouveau/fifo/gf100-: provide notification to user if channel is killed

There are instances (such as non-recoverable GPU page faults) where
NVKM decides that a channel's context is no longer viable, and will
be removed from the runlist.

This commit notifies the owner of the channel when this happens, so
it has the opportunity to take some kind of recovery action instead
of hanging.

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

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drm/nouveau/core/memory: distinguish between coherent/non-coherent targets

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

drm/nouveau/fifo/gf100-: recover from host mmu faults

This has been on the TODO list for a while now, recovering from things
such as attempting to execute a push buffer or touch a semaph

drm/nouveau/fifo/gf100-: recover from host mmu faults

This has been on the TODO list for a while now, recovering from things
such as attempting to execute a push buffer or touch a semaphore in an
unmapped memory area.

The only thing required on the HW side here is that the offending
channel is removed from the runlist, and *not* a full reset of PFIFO.

This used to be a bit messier to handle before the rework to make use
of engine topology info, but is apparently now trivial.

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

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drm/nouveau/fifo/gk104-: translate engidx into human-readable name in debug output

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

drm/nouveau/top: take nvkm_device as argument to public functions

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

drm/nouveau/fifo/gk104-: identify mmu engine ids for host faults

It appears these don't map to PBDMAs (at least on Kepler, it may or may
be valid for Fermi - this hasn't been checked), b

drm/nouveau/fifo/gk104-: identify mmu engine ids for host faults

It appears these don't map to PBDMAs (at least on Kepler, it may or may
be valid for Fermi - this hasn't been checked), but to runlists.

This drops the NVKM_ENGINE_FIFO data from the entries too, as resetting
all of PFIFO is *not* the way to handle such faults.

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

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drm/nouveau/fifo/gk104-: implement support for PTOP fault info

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

drm/nouveau/fifo/gk104-: abstract mmu fault data structures

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

drm/nouveau/fifo/gk104-: subclass func

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

drm/nouveau/fifo/gk104-: use device info from top subdev

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

drm/nouveau/fifo/gk104: submit NOP after all PBDMA_INTR_0, not just DEVICE

Prevents the same interrupt from re-triggering forever.

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

drm/nouveau/fifo/gk104: add nvdec plumbing

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

drm/nouveau/fifo/gk104: add nvenc plumbing

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

drm/nouveau/fifo/gk104: make use of topology info during fault recovery

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

drm/nouveau/fifo/gk104: make use of topology info when handling ctxsw timeout

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

drm/nouveau/fifo/gk104: read device topology information from hw

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

drm/nouveau/fifo/gk104: cosmetic engine->runlist changes

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

drm/nouveau/fifo/gk104: don't attempt recovery of unknown mmu engines

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

drm/nouveau/fifo/gk104: identify fault-recovery members more clearly

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

drm/nouveau/fifo/gk104: rename spoon to pbdma, and move detection to oneinit

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