Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2007-2009 PetaLogix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2006 Atmark Techno, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *	Yasushi SHOJI <yashi@atmark-techno.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *	Tetsuya OHKAWA <tetsuya@atmark-techno.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * License. See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/smp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/syscalls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/sem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/msg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/shm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/mman.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/sys.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/ipc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/semaphore.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <asm/syscalls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		unsigned long, prot, unsigned long, flags, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		off_t, pgoff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	if (pgoff & ~PAGE_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	return ksys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		unsigned long, prot, unsigned long, flags, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 		unsigned long, pgoff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	if (pgoff & (~PAGE_MASK >> 12))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	return ksys_mmap_pgoff(addr, len, prot, flags, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 			       pgoff >> (PAGE_SHIFT - 12));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }