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_CMPXCHG_LLSC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __ASM_SH_CMPXCHG_LLSC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	unsigned long retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	unsigned long tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^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) 		"movli.l	@%2, %0	! xchg_u32	\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		"mov		%0, %1			\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		"mov		%3, %0			\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		"movco.l	%0, @%2			\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		"bf		1b			\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 		"synco					\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		: "=&z"(tmp), "=&r" (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		: "r" (m), "r" (val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		: "t", "memory"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static inline unsigned long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) __cmpxchg_u32(volatile u32 *m, unsigned long old, unsigned long new)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	unsigned long retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	unsigned long tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	__asm__ __volatile__ (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		"1:						\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		"movli.l	@%2, %0	! __cmpxchg_u32		\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		"mov		%0, %1				\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		"cmp/eq		%1, %3				\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		"bf		2f				\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		"mov		%4, %0				\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		"2:						\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		"movco.l	%0, @%2				\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		"bf		1b				\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		"synco						\n\t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		: "=&z" (tmp), "=&r" (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		: "r" (m), "r" (old), "r" (new)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		: "t", "memory"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #include <asm/cmpxchg-xchg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif /* __ASM_SH_CMPXCHG_LLSC_H */