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Add SVM range invalidation vfunc which invalidates PTEs. A new PT layer function which accepts a SVM range is added to support this. In addition, add the basic page fault handler which allocates a SVM range which is used by SVM range invalidation vfunc. v2: - Don't run invalidation if VM is closed - Cycle notifier lock in xe_svm_close - Drop xe_gt_tlb_invalidation_fence_fini v3: - Better commit message (Thomas) - Add lockdep asserts (Thomas) - Add kernel doc (Thomas) - s/change/changed (Thomas) - Use new GPU SVM range / notifier structures - Ensure PTEs are zapped / dma mappings are unmapped on VM close (Thomas) v4: - Fix macro (Checkpatch) v5: - Use range start/end helpers (Thomas) - Use notifier start/end helpers (Thomas) v6: - Use min/max helpers (Himal) - Only compile if CONFIG_DRM_GPUSVM selected (CI, Lucas) Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-13-matthew.brost@intel.com |
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| kernel | ||
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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.