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Unlike single process debug devices, multi-process debug devices allow debug mode setting per-VMID (non-device-global). Because the HWS manages PASID-VMID mapping, the new MAP_PROCESS API allows the KFD to forward the required SPI debug register write requests. To request a new debug mode setting change, the KFD must be able to preempt all queues then remap all queues with these new setting requests for MAP_PROCESS to take effect. Note that by default, trap enablement in non-debug mode must be disabled for performance reasons for multi-process debug devices due to setup overhead in FW. Signed-off-by: Jonathan Kim <jonathan.kim@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.