diff --git a/sys/compat/linuxkpi/common/include/linux/highmem.h b/sys/compat/linuxkpi/common/include/linux/highmem.h
index 53efbec06385..0056b590f239 100644
--- a/sys/compat/linuxkpi/common/include/linux/highmem.h
+++ b/sys/compat/linuxkpi/common/include/linux/highmem.h
@@ -1,118 +1,135 @@
 /*-
  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
  *
  * Copyright (c) 2010 Isilon Systems, Inc.
  * Copyright (c) 2016 Matthew Macy (mmacy@mattmacy.io)
  * Copyright (c) 2017 Mellanox Technologies, Ltd.
  * Copyright (c) 2021 Vladimir Kondratyev <wulf@FreeBSD.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 #ifndef _LINUXKPI_LINUX_HIGHMEM_H_
 #define _LINUXKPI_LINUX_HIGHMEM_H_
 
 #include <sys/types.h>
 #include <sys/lock.h>
 #include <sys/mutex.h>
 #include <sys/proc.h>
 #include <sys/sched.h>
 #include <sys/sf_buf.h>
 
 #include <vm/vm.h>
 #include <vm/vm_page.h>
 #include <vm/pmap.h>
 
 #include <linux/page.h>
 
 #define	PageHighMem(p)		(0)
 
 static inline vm_page_t
 kmap_to_page(void *addr)
 {
+
 	return (virt_to_page(addr));
 }
 
 static inline void *
 kmap(vm_page_t page)
 {
 	struct sf_buf *sf;
 
 	if (PMAP_HAS_DMAP) {
 		return ((void *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(page)));
 	} else {
 		sched_pin();
 		sf = sf_buf_alloc(page, SFB_NOWAIT | SFB_CPUPRIVATE);
 		if (sf == NULL) {
 			sched_unpin();
 			return (NULL);
 		}
 		return ((void *)sf_buf_kva(sf));
 	}
 }
 
 static inline void *
 kmap_atomic_prot(vm_page_t page, pgprot_t prot)
 {
 	vm_memattr_t attr = pgprot2cachemode(prot);
 
 	if (attr != VM_MEMATTR_DEFAULT) {
 		vm_page_lock(page);
 		page->flags |= PG_FICTITIOUS;
 		vm_page_unlock(page);
 		pmap_page_set_memattr(page, attr);
 	}
 	return (kmap(page));
 }
 
 static inline void *
 kmap_atomic(vm_page_t page)
 {
+
 	return (kmap_atomic_prot(page, VM_PROT_ALL));
 }
 
+static inline void *
+kmap_local_page_prot(vm_page_t page, pgprot_t prot)
+{
+
+	return (kmap_atomic_prot(page, prot));
+}
+
 static inline void
 kunmap(vm_page_t page)
 {
 	struct sf_buf *sf;
 
 	if (!PMAP_HAS_DMAP) {
 		/* lookup SF buffer in list */
 		sf = sf_buf_alloc(page, SFB_NOWAIT | SFB_CPUPRIVATE);
 
 		/* double-free */
 		sf_buf_free(sf);
 		sf_buf_free(sf);
 
 		sched_unpin();
 	}
 }
 
 static inline void
 kunmap_atomic(void *vaddr)
 {
+
 	if (!PMAP_HAS_DMAP)
 		kunmap(virt_to_page(vaddr));
 }
 
+static inline void
+kunmap_local(void *addr)
+{
+
+	kunmap_atomic(addr);
+}
+
 #endif	/* _LINUXKPI_LINUX_HIGHMEM_H_ */