/* SPDX-License-Identifier: GPL-2.0 */// Copyright (C) 2005-2017 Andes Technology Corporation #ifndef __ASM_NDS32_PROCESSOR_H#define __ASM_NDS32_PROCESSOR_H #ifdef __KERNEL__ #include <asm/ptrace.h>#include <asm/types.h>#include <asm/sigcontext.h> #define KERNEL_STACK_SIZE	PAGE_SIZE#define STACK_TOP	TASK_SIZE#define STACK_TOP_MAX   TASK_SIZE struct cpu_context {	unsigned long r6;	unsigned long r7;	unsigned long r8;	unsigned long r9;	unsigned long r10;	unsigned long r11;	unsigned long r12;	unsigned long r13;	unsigned long r14;	unsigned long fp;	unsigned long pc;	unsigned long sp;}; struct thread_struct {	struct cpu_context cpu_context;	/* cpu context */	/* fault info     */	unsigned long address;	unsigned long trap_no;	unsigned long error_code; 	struct fpu_struct fpu;}; #define INIT_THREAD  {	} #ifdef __NDS32_EB__#define PSW_DE	PSW_mskBE#else#define PSW_DE	0x0#endif #ifdef CONFIG_WBNA#define PSW_valWBNA	PSW_mskWBNA#else#define PSW_valWBNA	0x0#endif #ifdef CONFIG_HWZOL#define	PSW_valINIT (PSW_CPL_ANY | PSW_mskAEN | PSW_valWBNA | PSW_mskDT | PSW_mskIT | PSW_DE | PSW_mskGIE)#else#define	PSW_valINIT (PSW_CPL_ANY | PSW_valWBNA | PSW_mskDT | PSW_mskIT | PSW_DE | PSW_mskGIE)#endif #define start_thread(regs,pc,stack)			\({							\	memzero(regs, sizeof(struct pt_regs));		\	forget_syscall(regs);				\	regs->ipsw = PSW_valINIT;			\	regs->ir0 = (PSW_CPL_ANY | PSW_valWBNA | PSW_mskDT | PSW_mskIT | PSW_DE | PSW_SYSTEM | PSW_INTL_1);	\	regs->ipc = pc;					\	regs->sp = stack;				\}) /* Forward declaration, a strange C thing */struct task_struct; /* Free all resources held by a thread. */#define release_thread(thread) do { } while(0)#if IS_ENABLED(CONFIG_FPU)#if !IS_ENABLED(CONFIG_UNLAZU_FPU)extern struct task_struct *last_task_used_math;#endif#endif /* Prepare to copy thread state - unlazy all lazy status */#define prepare_to_copy(tsk)	do { } while (0) unsigned long get_wchan(struct task_struct *p); #define cpu_relax()			barrier() #define task_pt_regs(task) \	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \		- 8) - 1) /* * Create a new kernel thread */extern int kernel_thread(int (*fn) (void *), void *arg, unsigned long flags); #define KSTK_EIP(tsk)	instruction_pointer(task_pt_regs(tsk))#define KSTK_ESP(tsk)	user_stack_pointer(task_pt_regs(tsk)) #endif #endif /* __ASM_NDS32_PROCESSOR_H */