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Oak Zeng 6ceef704e2 drm/xe: Reject BO eviction if BO is bound to current VM [ Upstream commit `0af944f0e3` ] This is a follow up fix for https://patchwork.freedesktop.org/patch/msgid/20241203021929.1919730-1-oak.zeng@intel.com The overall goal is to fail vm_bind when there is memory pressure. See more details in the commit message of above patch. Abbove patch fixes the issue when user pass in a vm_id parameter during gem_create. If user doesn't pass in a vm_id during gem_create, above patch doesn't help. This patch further reject BO eviction (which could be triggered by bo validation) if BO is bound to the current VM. vm_bind could fail due to the eviction failure. The BO to VM reverse mapping structure is used to determine whether BO is bound to VM. v2: Move vm_bo definition from function scope to if(evict) clause (Thomas) Further constraint the condition by adding ctx->resv (Thomas) Add a short comment describe the change. Suggested-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Oak Zeng <oak.zeng@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250110210137.3181576-1-oak.zeng@intel.com Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-05-29 11:03:08 +02:00
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README

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.