drm/xe/vm: Skip ufence association for CPU address mirror VMA during MAP

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[ Upstream commit 7f08cc5b3c ]

The MAP operation for a CPU address mirror VMA does not require ufence
association because such mappings are not GPU-synchronized and do not
participate in GPU job completion signaling.

Remove the unnecessary ufence addition for this case to avoid -EBUSY
failure in check_ufence of unbind ops.

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/20251125075628.1182481-6-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Himal Prasad Ghimiray 2025-11-25 13:26:28 +05:30 • committed by Sasha Levin

parent e72721081b

commit 86017c455e

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/xe/xe_vm.c

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