dad19630 - Documentation/gpu: VM_BIND locking document

Wed, 29 Nov 2023 09:06:37 +0000

Documentation/gpu: VM_BIND locking documentAdd the first version of the VM_BIND locking document which isintended to be part of the xe driver upstreaming agreement.The document describes and discuss the locking used during exec-functions, evicton and for userptr gpu-vmas. Intention is to be using thesame nomenclature as the drm-vm-bind-async.rst.v2:- s/gvm/gpu_vm/g (Rodrigo Vivi)- Clarify the userptr seqlock with a pointer to mm/mmu_notifier.c (Rodrigo Vivi)- Adjust commit message accordingly.- Add SPDX license header.v3:- Large update to align with the drm_gpuvm manager locking- Add "Efficient userptr gpu_vma exec function iteration" section- Add "Locking at bind- and unbind time" section.v4:- Fix tabs vs space errors by untabifying (Rodrigo Vivi)- Minor style fixes and typos (Rodrigo Vivi)- Clarify situations where stale GPU mappings are occurring and how access through these mappings are blocked. (Rodrigo Vivi)- Insert into the toctree in implementation_guidelines.rstv5:- Add a section about recoverable page-faults.- Use local references to other documentation where possible (Bagas Sanjaya)- General documentation fixes and typos (Danilo Krummrich and Boris Brezillon)- Improve the documentation around locks that need to be grabbed from the dm-fence critical section (Boris Brezillon)- Add more references to the DRM GPUVM helpers (Danilo Krummrich and Boriz Brezillon)- Update the rfc/xe.rst document.v6:- Rework wording to improve readability (Boris Brezillon, Rodrigo Vivi, Bagas Sanjaya)- Various minor fixes across the document (Boris Brezillon)Cc: Rodrigo Vivi Signed-off-by: Thomas Hellström Reviewed-by: Boris Brezillon Reviewed-by: Rodrigo Vivi Reviewed-by: Danilo Krummrich Acked-by: John Hubbard # Documentation/core-api/pin_user_pages.rst changesLink: https://patchwork.freedesktop.org/patch/msgid/20231129090637.2629-1-thomas.hellstrom@linux.intel.com List of files: /linux-6.15/Documentation/gpu/drm-vm-bind-locking.rst

Changes in drm-vm-bind-locking.rst

dad19630 - Documentation/gpu: VM_BIND locking document