Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __ASM_SH_FUTEX_CAS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __ASM_SH_FUTEX_CAS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) static inline int atomic_futex_op_cmpxchg_inatomic(u32 *uval,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 						   u32 __user *uaddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 						   u32 oldval, u32 newval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	__asm__ __volatile__(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		"1:\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		"cas.l	%2, %1, @r0\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		"2:\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #ifdef CONFIG_MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		".section	.fixup,\"ax\"\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		"3:\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 		"mov.l	4f, %0\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		"jmp	@%0\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		" mov	%3, %0\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		".balign	4\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		"4:	.long	2b\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		".previous\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		".section	__ex_table,\"a\"\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		".long	1b, 3b\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		".previous"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		:"+r" (err), "+r" (newval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		:"r" (oldval), "i" (-EFAULT), "z" (uaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		:"t", "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	if (err) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	*uval = newval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #endif /* __ASM_SH_FUTEX_CAS_H */