| Commit message (Collapse) | Author | Age |
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- Re-read PRAMIN configuration after update to verify change applies
- Return a page_dir_config_t rather than just an address and page.
table version from `get_bar2_pdb()`.
- Less verbose logging for MMU-related functions by default.
- Perform all conversion from SYS_MEM/VID_MEM addresses to kernel
addresses inside the translation functions, via the new function
'pd_deref()`.
- Support use of an I/O MMU, page tables/directories outside the
current PRAMIN window, and page tables/directories arbitrarially
located in SYS_MEM or VID_MEM on different levels of the same tree.
- Heavily improve documentation and add references for Version 1 and
Version 0 page tables.
- Improve logging in `runlist.c` to include runlist and chip IDs.
- Update all users of search_page_directory* to use the new API.
- Remove now-unused supporting functions from `mmu.c`.
Tested on GTX 970, GTX 1060 3GB, Jetson TX2, Titan V, Jetson Xavier,
and RTX 2080 Ti.
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- Support differently-formatted runlist registers on Turing
- Support different runlist register offsets on Turing
- Fix incorrect indenting when printing the runlist
- Fix `preempt_tsg` and `switch_to_tsg` API implementations to
correctly interface with the hardware (previously, they would try
to disable scheduling for the last-updated runlist pointer, which
was nonsense, and just an artifact of my early misunderstandings
of how the NV_PFIFO_RUNLIST* registers worked).
- Remove misused NV_PFIFO_RUNLIST and NV_PFIFO_RUNLIST_BASE registers
- Refactor `runlist.c` to use the APIs from `bus.c`
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Using this may be hazardous---we don't know if some of the GPU drivers
use this after initial bring-up. If they do, and we race with them in
setting it, or we unexpectedly change it under them, arbitrary state
corruption could occur.
This is only entirely safe to use if you don't trust the GPU state
after the first use of this fallback. In limited experiments vs the
`nvgpu` (Tegra) and `nvidia` (closed-source discrete) drivers, no
ill side effects have yet been observed, but still please use with
caution.
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Also check for read success in get_runlist_iter().
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Adds:
- /proc/preempt_tsg which takes a TSG ID
- /proc/disable_channel which takes a channel ID
- /proc/enable_channel which takes a channel ID
- /proc/switch_to_tsg which takes a TSG ID
Also significantly expands documentation and structs available in
nvdebug.h.
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- The sequence file infrastructure prior to kernel version 4.19
has a bug in the retry code when the write buffer overflows that
causes our private iterator state to be corrupted. Work around
this by tracking some info out-of-band.
- Now supports including detailed channel status information from
channel RAM when printing the runlist.
- Adds helper function to probe for and return struct gk20a*.
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`cat /proc/runlist` to print the current runlist.
Also break nvdebug.c into nvdebug_entry.c, runlist.c, and
runlist_procfs.c.
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