41 	 * on, or zero for (in particular) UNMAP ops triggered outside of
48  * struct msm_vm_unmap_op - unmap a range of pages from pgtable
51 	/** @iova: start address for unmap */
53 	/** @range: size of region to unmap */
56 	/** @reason: The reason for the unmap */
61 	 * on, or zero for (in particular) UNMAP ops triggered outside of
68  * struct msm_vma_op - A MAP or UNMAP operation
79 		/** @unmap: Parameters used if op == MSM_VMA_OP_UNMAP */
80 		struct msm_vm_unmap_op unmap;  member
88 	 * Async unmap ops, in particular, must hold a reference to the
91 	 * there is not a corresponding unmap op, such as process exit.
103  * gets applied to the vm, generating a list of VM ops (MSM_VM_OP_MAP/UNMAP)
106  * to unmap an existing mapping, and a MSM_VM_OP_MAP to apply the new mapping.
251 		reason = "unmap";  in vm_unmap_op()
255 	vm->mmu->funcs->unmap(vm->mmu, op->iova, op->range);  in vm_unmap_op()
267 /* Actually unmap memory for the vma */
323 	 * a lock across map/unmap which is also used in the job_run()  in msm_gem_vma_map()
544 	struct drm_gpuva *orig_vma = op->remap.unmap->va;  in msm_gem_vm_sm_step_remap()
561 			.unmap = {  in msm_gem_vm_sm_step_remap()
575 		 * the unmapped range is in the middle of the existing (unmap) VMA).  in msm_gem_vm_sm_step_remap()
631 	struct drm_gpuva *vma = op->unmap.va;  in msm_gem_vm_sm_step_unmap()
644 	if (op->unmap.keep &&  in msm_gem_vm_sm_step_unmap()
650 		/* We are only expecting a single in-place unmap+map cb pair: */  in msm_gem_vm_sm_step_unmap()
668 		.unmap = {  in msm_gem_vm_sm_step_unmap()
723 			vm_unmap_op(vm, &op->unmap);  in msm_vma_job_run()
1018 	 * UNMAP or MAP_NULL.  in lookup_op()
1443 	 * Maybe we could allow just UNMAP ops?  OTOH userspace should just  in msm_ioctl_vm_bind()