drm/xe/vm: Update xe_vma_ops_incr_pt_update_ops to take an increment value

Prefetch for SVM ranges can have more than one operation to increment,
hence modify the function to accept an increment value as input.

v2:
  - Call xe_vma_ops_incr_pt_update_ops only once for REMAP (Matthew Brost)
  - Add check for 0 ops

v3:
  - s/u8/int for inc_val and num_remap_ops (Matthew Brost)

Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://lore.kernel.org/r/20250513040228.470682-7-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

Author: hghimira

drivers/gpu/drm/xe/xe_vm.c

@@ -806,13 +806,16 @@ static void xe_vma_ops_fini(struct xe_vma_ops *vops)
 		kfree(vops->pt_update_ops[i].ops);
 }
 
-static void xe_vma_ops_incr_pt_update_ops(struct xe_vma_ops *vops, u8 tile_mask)
+static void xe_vma_ops_incr_pt_update_ops(struct xe_vma_ops *vops, u8 tile_mask, int inc_val)
 {
 	int i;
 
+	if (!inc_val)
+		return;
+
 	for (i = 0; i < XE_MAX_TILES_PER_DEVICE; ++i)
 		if (BIT(i) & tile_mask)
-			++vops->pt_update_ops[i].num_ops;
+			vops->pt_update_ops[i].num_ops += inc_val;
 }
 
 static void xe_vm_populate_rebind(struct xe_vma_op *op, struct xe_vma *vma,
@@ -842,7 +845,7 @@ static int xe_vm_ops_add_rebind(struct xe_vma_ops *vops, struct xe_vma *vma,
 
 	xe_vm_populate_rebind(op, vma, tile_mask);
 	list_add_tail(&op->link, &vops->list);
-	xe_vma_ops_incr_pt_update_ops(vops, tile_mask);
+	xe_vma_ops_incr_pt_update_ops(vops, tile_mask, 1);
 
 	return 0;
 }
@@ -977,7 +980,7 @@ xe_vm_ops_add_range_rebind(struct xe_vma_ops *vops,
 
 	xe_vm_populate_range_rebind(op, vma, range, tile_mask);
 	list_add_tail(&op->link, &vops->list);
-	xe_vma_ops_incr_pt_update_ops(vops, tile_mask);
+	xe_vma_ops_incr_pt_update_ops(vops, tile_mask, 1);
 
 	return 0;
 }
@@ -1062,7 +1065,7 @@ xe_vm_ops_add_range_unbind(struct xe_vma_ops *vops,
 
 	xe_vm_populate_range_unbind(op, range);
 	list_add_tail(&op->link, &vops->list);
-	xe_vma_ops_incr_pt_update_ops(vops, range->tile_present);
+	xe_vma_ops_incr_pt_update_ops(vops, range->tile_present, 1);
 
 	return 0;
 }
@@ -2493,7 +2496,7 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops,
 			     !op->map.is_cpu_addr_mirror) ||
 			    op->map.invalidate_on_bind)
 				xe_vma_ops_incr_pt_update_ops(vops,
-							      op->tile_mask);
+							      op->tile_mask, 1);
 			break;
 		}
 		case DRM_GPUVA_OP_REMAP:
@@ -2502,6 +2505,7 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops,
 				gpuva_to_vma(op->base.remap.unmap->va);
 			bool skip = xe_vma_is_cpu_addr_mirror(old);
 			u64 start = xe_vma_start(old), end = xe_vma_end(old);
+			int num_remap_ops = 0;
 
 			if (op->base.remap.prev)
 				start = op->base.remap.prev->va.addr +
@@ -2554,7 +2558,7 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops,
 					       (ULL)op->remap.start,
 					       (ULL)op->remap.range);
 				} else {
-					xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask);
+					num_remap_ops++;
 				}
 			}
 
@@ -2583,11 +2587,13 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops,
 					       (ULL)op->remap.start,
 					       (ULL)op->remap.range);
 				} else {
-					xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask);
+					num_remap_ops++;
 				}
 			}
 			if (!skip)
-				xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask);
+				num_remap_ops++;
+
+			xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask, num_remap_ops);
 			break;
 		}
 		case DRM_GPUVA_OP_UNMAP:
@@ -2599,7 +2605,7 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops,
 				return -EBUSY;
 
 			if (!xe_vma_is_cpu_addr_mirror(vma))
-				xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask);
+				xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask, 1);
 			break;
 		case DRM_GPUVA_OP_PREFETCH:
 			vma = gpuva_to_vma(op->base.prefetch.va);
@@ -2611,7 +2617,7 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct drm_gpuva_ops *ops,
 			}
 
 			if (!xe_vma_is_cpu_addr_mirror(vma))
-				xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask);
+				xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask, 1);
 			break;
 		default:
 			drm_warn(&vm->xe->drm, "NOT POSSIBLE");