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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293/* SPDX-License-Identifier: GPL-2.0 *//* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. */
#ifndef _ASM_MICROBLAZE_PROCESSOR_H#define _ASM_MICROBLAZE_PROCESSOR_H
#include <asm/ptrace.h>#include <asm/setup.h>#include <asm/registers.h>#include <asm/entry.h>#include <asm/current.h>
# ifndef __ASSEMBLER__/* from kernel/cpu/mb.c */extern const struct seq_operations cpuinfo_op;
# define cpu_relax() barrier()
#define task_pt_regs(tsk) \ (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1)
/* Do necessary setup to start up a newly executed thread. */void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp);
extern void ret_from_fork(void);extern void ret_from_kernel_thread(void);
# endif /* __ASSEMBLER__ */
/* * This is used to define STACK_TOP, and with MMU it must be below * kernel base to select the correct PGD when handling MMU exceptions. */# define TASK_SIZE (CONFIG_KERNEL_START)
/* * This decides where the kernel will search for a free chunk of vm * space during mmap's. */# define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3)
# define THREAD_KSP 0
# ifndef __ASSEMBLER__
/* If you change this, you must change the associated assembly-languages * constants defined below, THREAD_*. */struct thread_struct { /* kernel stack pointer (must be first field in structure) */ unsigned long ksp; unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */ void *pgdir; /* root of page-table tree */ struct pt_regs *regs; /* Pointer to saved register state */};
# define INIT_THREAD { \ .ksp = sizeof init_stack + (unsigned long)init_stack, \ .pgdir = swapper_pg_dir, \}
unsigned long __get_wchan(struct task_struct *p);
/* The size allocated for kernel stacks. This _must_ be a power of two! */# define KERNEL_STACK_SIZE 0x2000
/* Return some info about the user process TASK. */# define task_tos(task) ((unsigned long)(task) + KERNEL_STACK_SIZE)# define task_regs(task) ((struct pt_regs *)task_tos(task) - 1)
# define task_pt_regs_plus_args(tsk) \ ((void *)task_pt_regs(tsk))
# define task_sp(task) (task_regs(task)->r1)# define task_pc(task) (task_regs(task)->pc)/* Grotty old names for some. */# define KSTK_EIP(task) (task_pc(task))# define KSTK_ESP(task) (task_sp(task))
# define STACK_TOP TASK_SIZE# define STACK_TOP_MAX STACK_TOP
#ifdef CONFIG_DEBUG_FSextern struct dentry *of_debugfs_root;#endif
# endif /* __ASSEMBLER__ */#endif /* _ASM_MICROBLAZE_PROCESSOR_H */