1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _TOOLS_LINUX_ASM_X86_RMWcc
3#define _TOOLS_LINUX_ASM_X86_RMWcc
4
5#ifdef CONFIG_CC_HAS_ASM_GOTO
6
7#define __GEN_RMWcc(fullop, var, cc, ...)				\
8do {									\
9	asm_volatile_goto (fullop "; j" cc " %l[cc_label]"		\
10			: : "m" (var), ## __VA_ARGS__ 			\
11			: "memory" : cc_label);				\
12	return 0;							\
13cc_label:								\
14	return 1;							\
15} while (0)
16
17#define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
18	__GEN_RMWcc(op " " arg0, var, cc)
19
20#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
21	__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
22
23#else /* !CONFIG_CC_HAS_ASM_GOTO */
24
25#define __GEN_RMWcc(fullop, var, cc, ...)				\
26do {									\
27	char c;								\
28	asm volatile (fullop "; set" cc " %1"				\
29			: "+m" (var), "=qm" (c)				\
30			: __VA_ARGS__ : "memory");			\
31	return c != 0;							\
32} while (0)
33
34#define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
35	__GEN_RMWcc(op " " arg0, var, cc)
36
37#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
38	__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
39
40#endif /* CONFIG_CC_HAS_ASM_GOTO */
41
42#endif /* _TOOLS_LINUX_ASM_X86_RMWcc */
43