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/* SPDX-License-Identifier: GPL-2.0 */
/*
* syscall_wrapper.h - s390 specific wrappers to syscall definitions
*
*/
#ifndef _ASM_S390_SYSCALL_WRAPPER_H
#define _ASM_S390_SYSCALL_WRAPPER_H
/* Mapping of registers to parameters for syscalls */
#define SC_S390_REGS_TO_ARGS(x, ...) \
__MAP(x, __SC_ARGS \
,, regs->orig_gpr2,, regs->gprs[3],, regs->gprs[4] \
,, regs->gprs[5],, regs->gprs[6],, regs->gprs[7])
#define SYSCALL_DEFINE0(sname) \
SYSCALL_METADATA(_##sname, 0); \
long __s390x_sys_##sname(struct pt_regs *__unused); \
ALLOW_ERROR_INJECTION(__s390x_sys_##sname, ERRNO); \
static inline long __do_sys_##sname(void); \
long __s390x_sys_##sname(struct pt_regs *__unused) \
{ \
return __do_sys_##sname(); \
} \
static inline long __do_sys_##sname(void)
#define COND_SYSCALL(name) \
cond_syscall(__s390x_sys_##name)
#define __S390_SYS_STUBx(x, fullname, name, ...)
#define __SYSCALL_DEFINEx(x, name, ...) \
long __s390x_sys##name(struct pt_regs *regs); \
ALLOW_ERROR_INJECTION(__s390x_sys##name, ERRNO); \
static inline long __se_sys##name(__MAP(x, __SC_LONG, __VA_ARGS__)); \
static inline long __do_sys##name(__MAP(x, __SC_DECL, __VA_ARGS__)); \
__S390_SYS_STUBx(x, name, __VA_ARGS__); \
long __s390x_sys##name(struct pt_regs *regs) \
{ \
return __se_sys##name(SC_S390_REGS_TO_ARGS(x, __VA_ARGS__)); \
} \
static inline long __se_sys##name(__MAP(x, __SC_LONG, __VA_ARGS__)) \
{ \
__MAP(x, __SC_TEST, __VA_ARGS__); \
return __do_sys##name(__MAP(x, __SC_CAST, __VA_ARGS__)); \
} \
static inline long __do_sys##name(__MAP(x, __SC_DECL, __VA_ARGS__))
#endif /* _ASM_S390_SYSCALL_WRAPPER_H */
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