922a70d327
Move STACK_TOP[_MAX] out of asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT format is available. Signed-off-by: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
147 lines
3.6 KiB
C
147 lines
3.6 KiB
C
#ifndef _ASM_M32R_PROCESSOR_H
|
|
#define _ASM_M32R_PROCESSOR_H
|
|
|
|
/*
|
|
* include/asm-m32r/processor.h
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1994 Linus Torvalds
|
|
* Copyright (C) 2001 Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto
|
|
* Copyright (C) 2004 Hirokazu Takata <takata at linux-m32r.org>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/ptrace.h> /* pt_regs */
|
|
|
|
/*
|
|
* Default implementation of macro that returns current
|
|
* instruction pointer ("program counter").
|
|
*/
|
|
#define current_text_addr() ({ __label__ _l; _l: &&_l; })
|
|
|
|
/*
|
|
* CPU type and hardware bug flags. Kept separately for each CPU.
|
|
* Members of this structure are referenced in head.S, so think twice
|
|
* before touching them. [mj]
|
|
*/
|
|
|
|
struct cpuinfo_m32r {
|
|
unsigned long pgtable_cache_sz;
|
|
unsigned long cpu_clock;
|
|
unsigned long bus_clock;
|
|
unsigned long timer_divide;
|
|
unsigned long loops_per_jiffy;
|
|
};
|
|
|
|
/*
|
|
* capabilities of CPUs
|
|
*/
|
|
|
|
extern struct cpuinfo_m32r boot_cpu_data;
|
|
|
|
#ifdef CONFIG_SMP
|
|
extern struct cpuinfo_m32r cpu_data[];
|
|
#define current_cpu_data cpu_data[smp_processor_id()]
|
|
#else
|
|
#define cpu_data (&boot_cpu_data)
|
|
#define current_cpu_data boot_cpu_data
|
|
#endif
|
|
|
|
/*
|
|
* User space process size: 2GB (default).
|
|
*/
|
|
#ifdef CONFIG_MMU
|
|
#define TASK_SIZE (0x80000000UL)
|
|
#else
|
|
#define TASK_SIZE (0x00400000UL)
|
|
#endif
|
|
|
|
#ifdef __KERNEL__
|
|
#define STACK_TOP TASK_SIZE
|
|
#define STACK_TOP_MAX STACK_TOP
|
|
#endif
|
|
|
|
/* This decides where the kernel will search for a free chunk of vm
|
|
* space during mmap's.
|
|
*/
|
|
#define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3)
|
|
|
|
typedef struct {
|
|
unsigned long seg;
|
|
} mm_segment_t;
|
|
|
|
#define MAX_TRAPS 10
|
|
|
|
struct debug_trap {
|
|
int nr_trap;
|
|
unsigned long addr[MAX_TRAPS];
|
|
unsigned long insn[MAX_TRAPS];
|
|
};
|
|
|
|
struct thread_struct {
|
|
unsigned long address;
|
|
unsigned long trap_no; /* Trap number */
|
|
unsigned long error_code; /* Error code of trap */
|
|
unsigned long lr; /* saved pc */
|
|
unsigned long sp; /* user stack pointer */
|
|
struct debug_trap debug_trap;
|
|
};
|
|
|
|
#define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack)
|
|
|
|
#define INIT_THREAD { \
|
|
.sp = INIT_SP, \
|
|
}
|
|
|
|
/*
|
|
* Do necessary setup to start up a newly executed thread.
|
|
*/
|
|
|
|
/* User process Backup PSW */
|
|
#define USERPS_BPSW (M32R_PSW_BSM|M32R_PSW_BIE|M32R_PSW_BPM)
|
|
|
|
#define start_thread(regs, new_pc, new_spu) \
|
|
do { \
|
|
set_fs(USER_DS); \
|
|
regs->psw = (regs->psw | USERPS_BPSW) & 0x0000FFFFUL; \
|
|
regs->bpc = new_pc; \
|
|
regs->spu = new_spu; \
|
|
} while (0)
|
|
|
|
/* Forward declaration, a strange C thing */
|
|
struct task_struct;
|
|
struct mm_struct;
|
|
|
|
/* Free all resources held by a thread. */
|
|
extern void release_thread(struct task_struct *);
|
|
|
|
#define prepare_to_copy(tsk) do { } while (0)
|
|
|
|
/*
|
|
* create a kernel thread without removing it from tasklists
|
|
*/
|
|
extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
|
|
|
|
/* Copy and release all segment info associated with a VM */
|
|
extern void copy_segments(struct task_struct *p, struct mm_struct * mm);
|
|
extern void release_segments(struct mm_struct * mm);
|
|
|
|
extern unsigned long thread_saved_pc(struct task_struct *);
|
|
|
|
/* Copy and release all segment info associated with a VM */
|
|
#define copy_segments(p, mm) do { } while (0)
|
|
#define release_segments(mm) do { } while (0)
|
|
|
|
unsigned long get_wchan(struct task_struct *p);
|
|
#define KSTK_EIP(tsk) ((tsk)->thread.lr)
|
|
#define KSTK_ESP(tsk) ((tsk)->thread.sp)
|
|
|
|
#define THREAD_SIZE (2*PAGE_SIZE)
|
|
|
|
#define cpu_relax() barrier()
|
|
|
|
#endif /* _ASM_M32R_PROCESSOR_H */
|