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When prefetch region is DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC, prefetch svm ranges to preferred location provided by madvise. v2 (Matthew Brost) - Fix region, devmem_fd usages - consult madvise is applicable for other vma's too. v3 - Fix atomic handling v4 - Fix xe_svm_range_validate to check for DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC too. Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250821173104.3030148-14-himal.prasad.ghimiray@intel.com Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>