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in nvdebug_entry.c
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commit c3d6f2c852eb046e9d4f4f1e6527b52c746b2693
Author: Joshua Bakita <bakitajoshua@gmail.com>
Date: Sun Oct 29 14:37:51 2023 -0400
Print Ampere+ device_info fields with correct offsets/widths
Everything now has been checked against how nvgpu handles it
commit b70849d1ce67a58f9f69b37dc62122f789f4cdf7
Author: Joshua Bakita <jbakita@cs.unc.edu>
Date: Wed Sep 20 14:27:38 2023 -0400
Rearrange, fix an off-by-one error, and remove an unused define
The code in nvdebug.h has been rearranged to enable an easier merge
against the jbakita-wip branch.
commit 51f808e092846a60ea6c88ea3a1d2e349c92977b
Author: Joshua Bakita <jbakita@cs.unc.edu>
Date: Wed Sep 20 13:09:17 2023 -0400
Bug fixes and cleanup for new device_info logic
- Update comments to match new structure
- Make show() function idempotent
- Skip empty table entries without aborting
- Include names for new engine types
- Add warning log messages for skipped table entries
- Remove non-functional runlist file creation logic for Ampere+
commit 1d7adc3be1aef5ac9c144bb24008fd8cc5d688a5
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Sat Aug 19 12:47:18 2023 -0400
Debugging changes made to restore functionality following refactoring.
- Debugged data display errors.
- Debugged crash bugs.
- Debugged memory issue.
commit 9e6cc03cdf736fbd817ed53fa9a7f506bc91a244
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Wed Aug 16 22:00:20 2023 -0400
A variety of changes have been made as part of the code review.
- Functions have been consolidated.
- Code was clarified and tidied up overall.
- Unnecessary elements were removed.
commit 845960fc1b15995fdbd6d61c384567652a150bc4
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Fri Jul 28 11:39:28 2023 -0400
Refactored various systems and debugged minor issues
- Added device_info_iter
- Merged functions in device_info_procfs.c
- Separated device_info data structs by version in nvdebug.h
- Fixed issue with device_info runlist ID data
commit 8a57aaeba41c43233c323d7e0fc8bf1a81ebc65e
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Fri Jul 21 11:32:51 2023 -0400
I have updated the ptop_device_info_t comment in nvdebug.h.
commit 33c915f08f5dc63674b158ecc18897494256a6d0
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Wed Jul 19 13:02:52 2023 -0400
Debugged device_info functionality
- Fixed device_info crash bugs
- Made further edits to display functionality
- Refactored code to enhance readability
commit bfb4dcf0e78954c0163f3a06a5a088c4d1b437a8
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Thu Jul 13 12:13:17 2023 -0400
This commit is to update the repo for display during a meeting.
- Added an Ampere version of the device info data.
- Added Ampere versions of auxillary functions.
- Modified display functions to accommodate Ampere data.
- Made other various small modifications.
commit 068e7f4e7208d6c9250ad72208e0b36fd9fdf2f6
Merge: 3725b15 073e897
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Mon Jul 10 12:39:12 2023 -0400
Merge branch 'jbakita-wip' of ssh://rtsrv.cs.unc.edu/public/nvdebug into wip
I am merging Mr. Bakita's changes (046d7d2) into this repository.
commit 3725b15d5da3e06ef202045d710aa5f15eb72fcc
Author: Benjamin Hadad IV <bh4@unc.edu>
Date: Mon Jul 3 04:30:54 2023 -0400
I modified nvdebug.h for Ampere.
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Fixes the build for some kernel versions where this is no longer
transatively included.
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Also add instructions for updating `include/`. These files are now
only needed to build on Linux 4.9-based Tegra platforms.
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Also check for read success in get_runlist_iter().
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- Including missing dereference to finish getting the address of
the control register range
- Add zero-initialization to the proc_ops structure in copat_ops to
insure that all intentionally unset fields remain unset
- Set .llseek in all the file_operations structures, as recent
kernels require this to be explictly set
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Works around change in parameters to proc initialization functions
via a hacky function which rewrites the layout. This also required
making all the struct file_operations writable.
Also start reducing dependency on nvgpu headers.
Known issues:
- Incorrect message printed in log after module is loaded. Unclear
if this is because the register detection logic is broken, or if
the layout of the data at NV_MC_BOOT_0 has changed.
- Not tested
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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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Supports accessing and printing the runlist on the Jetson Xavier to
dmesg. May work on other Jetson boards. Currently requires the nvgpu
headers from NVIDIA's Linux4Tegra (L4T) source tree.
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