- 09 Nov, 2022 40 commits
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Ben Skeggs authored
Exposes a bunch of the new features that became possible as a result of the earlier commits. DRM will build on this in the future to add support for features such as SCG ("async compute") and multi-device rendering, as part of the work necessary to be able to write a half- decent vulkan driver - finally. For the moment, this just crudely ports DRM to the API changes. - channel class interfaces now the same for all HW classes - channel group class exposed (SCG) - channel runqueue selector exposed (SCG) - channel sub-device id control exposed (multi-device rendering) - channel names in logging will reflect creating process, not fd owner - explicit USERD allocation required by VOLTA_CHANNEL_GPFIFO_A and newer - drm is smarter about determining the appropriate channel class to use Signed-off-by:Ben Skeggs <bskeggs@redhat.com> Reviewed-by:
Lyude Paul <lyude@redhat.com>
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Ben Skeggs authored
Simplifies the GPU-specific code, completing the switch to newer HALs. Signed-off-by:
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Ben Skeggs authored
Builds on the context tracking that was added earlier. - marks engine context PTEs as 'priv' where possible Signed-off-by:
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Ben Skeggs authored
- adds support for specifying SUBDEVICE_ID for channel - rounds non-power-of-two GPFIFO sizes down, rather than up Signed-off-by:
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Ben Skeggs authored
And use it to cleanup multiple implementations of almost the same thing. - prepares for non-polled / client-provided USERD - only zeroes relevant "registers", rather than entire USERD Signed-off-by:
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Ben Skeggs authored
Currently provided by {chan,dma,gpfifo}*.c, and those are going away. Signed-off-by: -
Ben Skeggs authored
- less dependence on waiting for runlist updates, on GPUs that allow it - supports runqueue selector in RAMRL entries - completes switch to common runl/cgrp/chan topology info Signed-off-by:
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Ben Skeggs authored
That sure was fun to untangle. - handled per-runlist, rather than globally - more straight-forward process in general - various potential SW/HW races have been fixed - fixes lockdep issues that were present in >=gk104's prior implementation - volta recovery now actually stands a chance of working - volta/turing waiting for PBDMA idle before engine reset - turing using hw-provided TSG info for CTXSW_TIMEOUT Signed-off-by:
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Ben Skeggs authored
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Ben Skeggs authored
A bunch of these can be handled in such a way that the channel can continue, however, any of these are a pretty decent sign something has gone horribly wrong, and the safest option is to disable the channel. This is a bit of a hack, we will want to handle these individually and dump relevant debug info for each at some point. Signed-off-by:
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Ben Skeggs authored
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Ben Skeggs authored
- nvkm_chan_error() built on top, stops channel and sends 'killed' event - removes an odd double-bashing of channel enable regs on kepler and up - pokes doorbell on turing and up, after enabling channel Signed-off-by:
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Ben Skeggs authored
- stops programming (non-existent) runl id field on bind(), from maxwell Signed-off-by:
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Ben Skeggs authored
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Ben Skeggs authored
- adds g8x/turing registers, which were missing before - switches fermi to polled wait, like later hw (see: 4f2fc25c...) Signed-off-by:
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Ben Skeggs authored
Channel groups have somewhat more complicated requirements than what we currently support. An engine context is shared between all channels in a channel group, VEID/subctx support (later) brings per-VEID components, and we need to track an individual channel's engine context pointers. This commit adds the structures and refcounting to support the above, wrapping the prior implementation for the moment. Signed-off-by:
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Ben Skeggs authored
- supports per-runlist CHIDs - channel group lock held across reference, rather than global lock v2: - remove unnecessary parenthesis Signed-off-by:
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Ben Skeggs authored
After updating GF100 implementation from the GK104/TU102 ones, and using the new runlist/engine topology info, all three handlers become (almost) identical. - there's a temporary kludge to call through to the HW-specific recovery - engine fault mapping info determined at load time, not on every fault Signed-off-by:
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Ben Skeggs authored
- merges gf100/gk104- NV_PFIFO_INTR_0_PBDMA and NV_PPBDMA_INTR_0 code Signed-off-by:
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Ben Skeggs authored
- bumps pbdma timeout to value RM uses on newer HW - bumps fb timeout to max from boot default - one/both of these greatly improves stability on // piglit runs Signed-off-by:
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Ben Skeggs authored
NVGPU and RM both program this value. Fixes a bunch of random hangs running parallel piglit. Signed-off-by: -
Ben Skeggs authored
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Ben Skeggs authored
- removes a layer of indirection in the intr handling - prevents non-stall ctrl racing with unknown intrs Signed-off-by:
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Ben Skeggs authored
More control, and shallower call-chain to get to the point. Signed-off-by:
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Ben Skeggs authored
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Ben Skeggs authored
Engine context tracking will move to nvkm_cgrp in later commits, so we create SW-only channel groups on HW without support for them. - switches to nvkm_chid for TSG/channel ID allocation Signed-off-by:
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Ben Skeggs authored
DRM uses this to setup fence-related items. - nouveau_chan.runlist will always be "0" for the moment, not an issue as GPUs prior to ampere have system-wide channel IDs, Signed-off-by:
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Ben Skeggs authored
Previously only available from Kepler onwards. - also fixes the info() queries causing fifo init()/fini() unnecessarily Signed-off-by:
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Ben Skeggs authored
Creates an nvkm_runl for each runlist on the GPU, and an nvkm_engn for each engine that is reachable from a runlist. - basically what gk104- already does, but extended to all chips - adds per-runlist CHID allocators (Ampere) - splits g98/gt2xx out from g84 (different target engines) Signed-off-by:
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Ben Skeggs authored
Creates an nvkm_runq for each PBDMA, these will be associated with the relevant runlist(s) later. Signed-off-by:
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Ben Skeggs authored
We need to be able to allocate TSG IDs as well as channel IDs, also, Ampere has per-runlist channel IDs. - holds per-ID private data, which will be used for/to protect lookup - holds an nvkm_event which will be used for events tied to IDs - not used yet beyond setup, and switching use of "fifo->nr - 1" for channel ID mask to "chid->mask" Signed-off-by:
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Ben Skeggs authored
This makes it easier to transition everything. - a couple of function renames for collisions Signed-off-by:
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Ben Skeggs authored
- will make subsequent patches more obvious - no code changes Signed-off-by:
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Ben Skeggs authored
Adds the basic skeleton for common channel (group) interfaces. - common behaviour between <gk104 and >=gk104 impl's - separates priv/user channel objects - passthrough to existing object for now, kludges removed later Signed-off-by:
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Ben Skeggs authored
- reads channel count from GPU from gm200 onwards - removes gm20b/gp10b (they become identical to gm200/gp100) Signed-off-by:
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Ben Skeggs authored
Will be used to init client-allocated USERD to default values. Signed-off-by:
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Ben Skeggs authored
Displays both owner/user of the falcon (when they differ), and takes both subdevs' debug levels into account when deciding whether to log the message. - runlist debugging will use one of the alternate macros added here Signed-off-by:
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Ben Skeggs authored
This wasn't really needed before; the main place this could race is with channel recovery, but (through potentially fragile means) shouldn't have been possible. However, a number of upcoming patches benefit from having better control over subdev init, necessitating some improvements here. - allows subdev/engine oneinit() without init() (host/fifo patches) - merges engine use locking/tracking into subdev, and extends it to fix some issues that will arise with future usage patterns (acr patches) Signed-off-by:
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Ben Skeggs authored
- NV_PMC_ENABLE still exists, but we don't touch anything in it yet Signed-off-by:
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Ben Skeggs authored
Ampere needs different handling here, most of what we touch has moved. We probably want to refactor these interfaces in general, but I'm not yet sure how they should look, this will get the job done for now. Signed-off-by:
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