729 static int qib_mmap_mem(struct vm_area_struct *vma, struct qib_ctxtdata *rcd,  in qib_mmap_mem()  argument
736 	if ((vma->vm_end - vma->vm_start) > len) {  in qib_mmap_mem()
739 			 vma->vm_end - vma->vm_start, len);  in qib_mmap_mem()
749 		if (vma->vm_flags & VM_WRITE) {  in qib_mmap_mem()
757 		vma->vm_flags &= ~VM_MAYWRITE;  in qib_mmap_mem()
761 	ret = remap_pfn_range(vma, vma->vm_start, pfn,  in qib_mmap_mem()
762 			      len, vma->vm_page_prot);  in qib_mmap_mem()
771 static int mmap_ureg(struct vm_area_struct *vma, struct qib_devdata *dd,  in mmap_ureg()  argument
784 	if ((vma->vm_end - vma->vm_start) > sz) {  in mmap_ureg()
787 			vma->vm_end - vma->vm_start);  in mmap_ureg()
791 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);  in mmap_ureg()
793 		vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;  in mmap_ureg()
794 		ret = io_remap_pfn_range(vma, vma->vm_start,  in mmap_ureg()
796 					 vma->vm_end - vma->vm_start,  in mmap_ureg()
797 					 vma->vm_page_prot);  in mmap_ureg()
802 static int mmap_piobufs(struct vm_area_struct *vma,  in mmap_piobufs()  argument
816 	if ((vma->vm_end - vma->vm_start) > (piocnt * dd->palign)) {  in mmap_piobufs()
819 			 vma->vm_end - vma->vm_start);  in mmap_piobufs()
828 	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;  in mmap_piobufs()
829 	pgprot_val(vma->vm_page_prot) |= _PAGE_WRITETHRU;  in mmap_piobufs()
830 	pgprot_val(vma->vm_page_prot) &= ~_PAGE_GUARDED;  in mmap_piobufs()
837 	vma->vm_flags &= ~VM_MAYREAD;  in mmap_piobufs()
838 	vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;  in mmap_piobufs()
842 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);  in mmap_piobufs()
844 	ret = io_remap_pfn_range(vma, vma->vm_start, phys >> PAGE_SHIFT,  in mmap_piobufs()
845 				 vma->vm_end - vma->vm_start,  in mmap_piobufs()
846 				 vma->vm_page_prot);  in mmap_piobufs()
851 static int mmap_rcvegrbufs(struct vm_area_struct *vma,  in mmap_rcvegrbufs()  argument
862 	if ((vma->vm_end - vma->vm_start) > total_size) {  in mmap_rcvegrbufs()
865 			 vma->vm_end - vma->vm_start,  in mmap_rcvegrbufs()
871 	if (vma->vm_flags & VM_WRITE) {  in mmap_rcvegrbufs()
874 			vma->vm_flags);  in mmap_rcvegrbufs()
879 	vma->vm_flags &= ~VM_MAYWRITE;  in mmap_rcvegrbufs()
881 	start = vma->vm_start;  in mmap_rcvegrbufs()
885 		ret = remap_pfn_range(vma, start, pfn, size,  in mmap_rcvegrbufs()
886 				      vma->vm_page_prot);  in mmap_rcvegrbufs()
899 static int qib_file_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)  in qib_file_vma_fault()  argument
917 static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr,  in mmap_kvaddr()  argument
960 		if (vma->vm_flags & VM_WRITE) {  in mmap_kvaddr()
963 				 vma->vm_flags);  in mmap_kvaddr()
971 		vma->vm_flags &= ~VM_MAYWRITE;  in mmap_kvaddr()
974 	len = vma->vm_end - vma->vm_start;  in mmap_kvaddr()
980 	vma->vm_pgoff = (unsigned long) addr >> PAGE_SHIFT;  in mmap_kvaddr()
981 	vma->vm_ops = &qib_file_vm_ops;  in mmap_kvaddr()
982 	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;  in mmap_kvaddr()
999 static int qib_mmapf(struct file *fp, struct vm_area_struct *vma)  in qib_mmapf()  argument
1008 	if (!rcd || !(vma->vm_flags & VM_SHARED)) {  in qib_mmapf()
1023 	pgaddr = vma->vm_pgoff << PAGE_SHIFT;  in qib_mmapf()
1039 	ret = mmap_kvaddr(vma, pgaddr, rcd, subctxt_fp(fp));  in qib_mmapf()
1066 		ret = mmap_ureg(vma, dd, ureg);  in qib_mmapf()
1068 		ret = mmap_piobufs(vma, dd, rcd, piobufs, piocnt);  in qib_mmapf()
1071 		ret = qib_mmap_mem(vma, rcd, PAGE_SIZE,  in qib_mmapf()
1075 		ret = mmap_rcvegrbufs(vma, rcd);  in qib_mmapf()
1082 		ret = qib_mmap_mem(vma, rcd, rcd->rcvhdrq_size,  in qib_mmapf()
1086 		ret = qib_mmap_mem(vma, rcd, PAGE_SIZE,  in qib_mmapf()
1094 	vma->vm_private_data = NULL;  in qib_mmapf()
1100 			 vma->vm_end - vma->vm_start);  in qib_mmapf()