[linux-2.6-block.git] / tools / arch / x86 / include / asm / rmwcc.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TOOLS_LINUX_ASM_X86_RMWcc
#define _TOOLS_LINUX_ASM_X86_RMWcc

#ifdef CONFIG_CC_HAS_ASM_GOTO

#define __GEN_RMWcc(fullop, var, cc, ...)				\
do {									\
	asm_volatile_goto (fullop "; j" cc " %l[cc_label]"		\
			: : "m" (var), ## __VA_ARGS__ 			\
			: "memory" : cc_label);				\
	return 0;							\
cc_label:								\
	return 1;							\
} while (0)

#define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
	__GEN_RMWcc(op " " arg0, var, cc)

#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
	__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))

#else /* !CONFIG_CC_HAS_ASM_GOTO */

#define __GEN_RMWcc(fullop, var, cc, ...)				\
do {									\
	char c;								\
	asm volatile (fullop "; set" cc " %1"				\
			: "+m" (var), "=qm" (c)				\
			: __VA_ARGS__ : "memory");			\
	return c != 0;							\
} while (0)

#define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
	__GEN_RMWcc(op " " arg0, var, cc)

#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
	__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))

#endif /* CONFIG_CC_HAS_ASM_GOTO */

#endif /* _TOOLS_LINUX_ASM_X86_RMWcc */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
da6d8567 ACM	2	#ifndef _TOOLS_LINUX_ASM_X86_RMWcc
	3	#define _TOOLS_LINUX_ASM_X86_RMWcc
	4
e9666d10	5	#ifdef CONFIG_CC_HAS_ASM_GOTO
da6d8567 ACM	6
	7	#define __GEN_RMWcc(fullop, var, cc, ...) \
	8	do { \
	9	asm_volatile_goto (fullop "; j" cc " %l[cc_label]" \
	10	: : "m" (var), ## __VA_ARGS__ \
	11	: "memory" : cc_label); \
	12	return 0; \
	13	cc_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
e9666d10	23	#else /* !CONFIG_CC_HAS_ASM_GOTO */
da6d8567 ACM	24
	25	#define __GEN_RMWcc(fullop, var, cc, ...) \
	26	do { \
	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
e9666d10	40	#endif /* CONFIG_CC_HAS_ASM_GOTO */
da6d8567 ACM	41
da6d8567 ACM	42	#endif /* _TOOLS_LINUX_ASM_X86_RMWcc */