mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-12-27 17:01:25 -05:00
438f7cd417
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is a completely mechanical patch (done with a simple "sed -i" statement). Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Thomas Huth <thuth@redhat.com> Link: https://lore.kernel.org/r/20250314071013.1575167-19-thuth@redhat.com Signed-off-by: Michal Simek <michal.simek@amd.com>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/* 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_FS
|
|
extern struct dentry *of_debugfs_root;
|
|
#endif
|
|
|
|
# endif /* __ASSEMBLER__ */
|
|
#endif /* _ASM_MICROBLAZE_PROCESSOR_H */
|