drm/xe/svm: Extend MAP range to reduce vma fragmentation

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When DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR is set during VM_BIND_OP_MAP,
the mapping logic now checks adjacent cpu_addr_mirror VMAs with default
attributes and expands the mapping range accordingly. This ensures that
bo_unmap operations ideally target the same area and helps reduce
fragmentation by coalescing nearby compatible VMAs into a single mapping.

Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20251125075628.1182481-4-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

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Himal Prasad Ghimiray 2025-11-25 13:26:26 +05:30

parent 4a938d3886

commit 0ae006dc48

1 changed files with 7 additions and 2 deletions

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drivers/gpu/drm/xe/xe_vm.c

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