Merge tag 'misc-habanalabs-next-2019-04-19' of git://people.freedesktop.org/~gabbayo...

Merge tag 'misc-habanalabs-next-2019-04-19' of git://people.freedesktop.org/~gabbayo/linux into char-misc-next

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
  ...