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cef62a615d
Oded writes: This tag contains many changes for kernel 5.2. The major changes are: - Add a new IOCTL for debug, profiling and trace operations on the device. This will allow the user to perform profiling and debugging of the deep learning topologies that are executing on the ASIC. - Add a shadow table for the ASIC's MMU page tables to avoid doing page table walks on the device's DRAM during map/unmap operations. - re-factor of ASIC-dependent code to be common code for all ASICs In addition, there are many small fixes and changes. The notable ones are: - Allow accessing the DRAM using virtual address through the debugFS interface. Until now, only physical addresses were valid, but that is useless for debugging when working with MMU. - Allow the user to modify the TPC clock relaxation value to better control TPC power consumption during topology execution. - Allow the user to inquire about the device's status (operational/Malfunction/in-reset) in the INFO IOCTL. - Improvements to the device's removal function, to prevent crash in case of force removal by the OS. - Prevent PTE read/write during hard-reset. This will improve stability of the device during hard-reset. * tag 'misc-habanalabs-next-2019-04-19' of git://people.freedesktop.org/~gabbayo/linux: (31 commits) habanalabs: prevent device PTE read/write during hard-reset habanalabs: improve IOCTLs behavior when disabled or reset habanalabs: all FD must be closed before removing device habanalabs: split mmu/no-mmu code paths in memory ioctl habanalabs: ASIC_AUTO_DETECT enum value is redundant habanalabs: refactoring in goya.c uapi/habanalabs: fix some comments in uapi file habanalabs: add goya implementation for debug configuration habanalabs: add new IOCTL for debug, tracing and profiling habanalabs: remove extra semicolon habanalabs: prevent CPU soft lockup on Palladium habanalabs: remove trailing blank line from EOF habanalabs: improve error messages habanalabs: add device status option to INFO IOCTL habanalabs: allow user to modify TPC clock relaxation value habanalabs: set new golden value to tpc clock relaxation habanalabs: never fail hard reset of device habanalabs: keep track of the device's dma mask habanalabs: add MMU shadow mapping habanalabs: Allow accessing DRAM virtual addresses via debugfs ... |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.