Commit 7f08cc5b authored by Himal Prasad Ghimiray's avatar Himal Prasad Ghimiray
Browse files

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



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: default avatarMatthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20251125075628.1182481-6-himal.prasad.ghimiray@intel.com


Signed-off-by: default avatarHimal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
parent dd62fe51

drivers/gpu/drm/xe/xe_vm.c

+2 −1
Original line number Diff line number Diff line
@@ -3218,6 +3218,7 @@ static void op_add_ufence(struct xe_vm *vm, struct xe_vma_op *op, 
{

	switch (op->base.op) {

	case DRM_GPUVA_OP_MAP:

		if (!xe_vma_is_cpu_addr_mirror(op->map.vma))

			vma_add_ufence(op->map.vma, ufence);

		break;

	case DRM_GPUVA_OP_REMAP: