drm/xe: Allow prefetch-only VM bind IOCTLs to use VM read lock

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Prefetch-only VM bind IOCTLs do not modify VMAs or use userptr pages.
Downgrade vm->lock to read mode once setup is complete.

Lays the groundwork for prefetch IOCTLs to use threaded migration.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Link: https://patch.msgid.link/20260806185202.3922432-3-matthew.brost@intel.com

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Matthew Brost 2026-08-06 11:51:52 -07:00

parent 941bcc1a4b

commit 53e76bde11

2 changed files with 33 additions and 5 deletions

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36

drivers/gpu/drm/xe/xe_vm.c

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2

drivers/gpu/drm/xe/xe_vm_types.h

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