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The madvise implementation currently resets the SVM madvise if the underlying CPU map is unmapped. This is in an attempt to mimic the CPU madvise behaviour. However, it's not clear that this is a desired behaviour since if the end app user relies on it for malloc()ed objects or stack objects, it may not work as intended. Instead of having the autoreset functionality being a direct application-facing implicit UAPI, make the UMD explicitly choose this behaviour if it wants to expose it by introducing DRM_XE_VM_BIND_FLAG_MADVISE_AUTORESET, and add a semantics description. v2: - Kerneldoc fixes. Fix a commit log message. Fixes:a2eb8aec3e("drm/xe: Reset VMA attributes to default in SVM garbage collector") Cc: Matthew Brost <matthew.brost@intel.com> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Cc: "Falkowski, John" <john.falkowski@intel.com> Cc: "Mrozek, Michal" <michal.mrozek@intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Link: https://lore.kernel.org/r/20251015170726.178685-2-thomas.hellstrom@linux.intel.com (cherry picked from commit59a2d3f38a) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>