Thomas Hellström 5a90b60db5 drm/xe: Add a xe_bo subtest for shrinking / swapping
Add a subtest that tries to allocate twice the amount of
buffer object memory available, write data to it and then read
all the data back verifying data integrity.
In order to be able to do this on systems that
have no or not enough swap-space available, allocate some memory
as purgeable, and introduce a function to purge such memory from
the TTM swap_notify path.

this test is intended to add test coverage to the current
bo swap path and upcoming shrinking path.

The test has previously been part of the xe bo shrinker series.

v2:
- Skip test if the execution time is expected to be too long.
- Minor code cleanups.

v3:
- Print random seed. (Matthew Auld)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240909085654.5064-1-thomas.hellstrom@linux.intel.com
2024-09-11 09:11:33 +02:00
2022-09-28 09:02:20 +02:00
2024-08-04 13:50:53 -07:00
2024-03-18 03:36:32 -06:00

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 reStructuredText 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.
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