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-rw-r--r--arch/csky/include/asm/syscall.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h
new file mode 100644
index 0000000000..0de5734950
--- /dev/null
+++ b/arch/csky/include/asm/syscall.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_SYSCALL_H
+#define __ASM_SYSCALL_H
+
+#include <linux/sched.h>
+#include <linux/err.h>
+#include <abi/regdef.h>
+#include <uapi/linux/audit.h>
+
+extern void *sys_call_table[];
+
+static inline int
+syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
+{
+ return regs_syscallid(regs);
+}
+
+static inline void
+syscall_set_nr(struct task_struct *task, struct pt_regs *regs,
+ int sysno)
+{
+ regs_syscallid(regs) = sysno;
+}
+
+static inline void
+syscall_rollback(struct task_struct *task, struct pt_regs *regs)
+{
+ regs->a0 = regs->orig_a0;
+}
+
+static inline long
+syscall_get_error(struct task_struct *task, struct pt_regs *regs)
+{
+ unsigned long error = regs->a0;
+
+ return IS_ERR_VALUE(error) ? error : 0;
+}
+
+static inline long
+syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
+{
+ return regs->a0;
+}
+
+static inline void
+syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
+ int error, long val)
+{
+ regs->a0 = (long) error ?: val;
+}
+
+static inline void
+syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
+ unsigned long *args)
+{
+ args[0] = regs->orig_a0;
+ args++;
+ memcpy(args, &regs->a1, 5 * sizeof(args[0]));
+}
+
+static inline int
+syscall_get_arch(struct task_struct *task)
+{
+ return AUDIT_ARCH_CSKY;
+}
+
+#endif /* __ASM_SYSCALL_H */