mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-23 09:56:00 +00:00
a583f1b542
Remove unused TIF_NOTIFY_RESUME flag for all processor architectures. The flag was not used excecpt on IA-64 where the patch replaces it with TIF_PERFMON_WORK. Signed-off-by: stephane eranian <eranian@hpl.hp.com> Cc: <linux-arch@vger.kernel.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
142 lines
4.2 KiB
C
142 lines
4.2 KiB
C
/*
|
|
* File: include/asm-blackfin/thread_info.h
|
|
* Based on: include/asm-m68knommu/thread_info.h
|
|
* Author: LG Soft India
|
|
* Copyright (C) 2004-2005 Analog Devices Inc.
|
|
* Created: Tue Sep 21 2004
|
|
* Description: Blackfin low-level thread information
|
|
* Modified:
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING.
|
|
* If not, write to the Free Software Foundation,
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef _ASM_THREAD_INFO_H
|
|
#define _ASM_THREAD_INFO_H
|
|
|
|
#include <asm/page.h>
|
|
#include <asm/entry.h>
|
|
#include <asm/l1layout.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/* Thread Align Mask to reach to the top of the stack
|
|
* for any process
|
|
*/
|
|
#define ALIGN_PAGE_MASK 0xffffe000
|
|
|
|
/*
|
|
* Size of kernel stack for each process. This must be a power of 2...
|
|
*/
|
|
#define THREAD_SIZE 8192 /* 2 pages */
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
typedef unsigned long mm_segment_t;
|
|
|
|
/*
|
|
* low level task data.
|
|
* If you change this, change the TI_* offsets below to match.
|
|
*/
|
|
|
|
struct thread_info {
|
|
struct task_struct *task; /* main task structure */
|
|
struct exec_domain *exec_domain; /* execution domain */
|
|
unsigned long flags; /* low level flags */
|
|
int cpu; /* cpu we're on */
|
|
int preempt_count; /* 0 => preemptable, <0 => BUG */
|
|
mm_segment_t addr_limit; /* address limit */
|
|
struct restart_block restart_block;
|
|
struct l1_scratch_task_info l1_task_info;
|
|
};
|
|
|
|
/*
|
|
* macros/functions for gaining access to the thread information structure
|
|
*/
|
|
#define INIT_THREAD_INFO(tsk) \
|
|
{ \
|
|
.task = &tsk, \
|
|
.exec_domain = &default_exec_domain, \
|
|
.flags = 0, \
|
|
.cpu = 0, \
|
|
.preempt_count = 1, \
|
|
.restart_block = { \
|
|
.fn = do_no_restart_syscall, \
|
|
}, \
|
|
}
|
|
#define init_thread_info (init_thread_union.thread_info)
|
|
#define init_stack (init_thread_union.stack)
|
|
|
|
/* How to get the thread information struct from C */
|
|
|
|
static inline struct thread_info *current_thread_info(void)
|
|
__attribute__ ((__const__));
|
|
|
|
/* Given a task stack pointer, you can find it's task structure
|
|
* just by masking it to the 8K boundary.
|
|
*/
|
|
static inline struct thread_info *current_thread_info(void)
|
|
{
|
|
struct thread_info *ti;
|
|
__asm__("%0 = sp;": "=&d"(ti):
|
|
);
|
|
return (struct thread_info *)((long)ti & ~((long)THREAD_SIZE-1));
|
|
}
|
|
|
|
/* thread information allocation */
|
|
#define alloc_thread_info(tsk) ((struct thread_info *) \
|
|
__get_free_pages(GFP_KERNEL, 1))
|
|
#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
/*
|
|
* Offsets in thread_info structure, used in assembly code
|
|
*/
|
|
#define TI_TASK 0
|
|
#define TI_EXECDOMAIN 4
|
|
#define TI_FLAGS 8
|
|
#define TI_CPU 12
|
|
#define TI_PREEMPT 16
|
|
|
|
#define PREEMPT_ACTIVE 0x4000000
|
|
|
|
/*
|
|
* thread information flag bit numbers
|
|
*/
|
|
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
|
|
#define TIF_SIGPENDING 1 /* signal pending */
|
|
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
|
|
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
|
|
TIF_NEED_RESCHED */
|
|
#define TIF_MEMDIE 4
|
|
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
|
|
#define TIF_FREEZE 6 /* is freezing for suspend */
|
|
|
|
/* as above, but as bit values */
|
|
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
|
|
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
|
|
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
|
|
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
|
|
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
|
|
#define _TIF_FREEZE (1<<TIF_FREEZE)
|
|
|
|
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_THREAD_INFO_H */
|