drm/xe/bo: Update atomic_access attribute on madvise

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Update the bo_atomic_access based on user-provided input and determine
the migration to smem during a CPU fault

v2 (Matthew Brost)
- Avoid cpu unmapping if bo is already in smem
- check atomics on smem too for ioctl
- Add comments

v3
- Avoid migration in prefetch

v4 (Matthew Brost)
- make sanity check function bool
- add assert for smem placement
- fix doc

v5 (Matthew Brost)
- NACK atomic fault with  DRM_XE_ATOMIC_CPU

Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250821173104.3030148-16-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

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This commit is contained in:

Himal Prasad Ghimiray 2025-08-21 23:00:59 +05:30

parent 072e299982

commit 293032eec4

4 changed files with 102 additions and 28 deletions

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29

drivers/gpu/drm/xe/xe_bo.c

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35

drivers/gpu/drm/xe/xe_gt_pagefault.c

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7

drivers/gpu/drm/xe/xe_vm.c

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59

drivers/gpu/drm/xe/xe_vm_madvise.c

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