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Diffstat (limited to 'include/asm-frv/thread_info.h')
| -rw-r--r-- | include/asm-frv/thread_info.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/include/asm-frv/thread_info.h b/include/asm-frv/thread_info.h deleted file mode 100644 index c8cba7836f0..00000000000 --- a/include/asm-frv/thread_info.h +++ /dev/null @@ -1,159 +0,0 @@ -/* thread_info.h: description - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * Derived from include/asm-i386/thread_info.h - * - * 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 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ -#include <asm/processor.h> -#endif - -/* - * low level task data that entry.S needs immediate access to - * - this struct should fit entirely inside of one cache line - * - this struct shares the supervisor stack pages - * - if the contents of this structure are changed, the assembly constants must also be changed - */ -#ifndef __ASSEMBLY__ - -struct thread_info { - struct task_struct *task; /* main task structure */ - struct exec_domain *exec_domain; /* execution domain */ - unsigned long flags; /* low level flags */ - unsigned long status; /* thread-synchronous flags */ - __u32 cpu; /* current CPU */ - int preempt_count; /* 0 => preemptable, <0 => BUG */ - - mm_segment_t addr_limit; /* thread address space: - 0-0xBFFFFFFF for user-thead - 0-0xFFFFFFFF for kernel-thread - */ - struct restart_block restart_block; - - __u8 supervisor_stack[0]; -}; - -#else /* !__ASSEMBLY__ */ - -/* offsets into the thread_info struct for assembly code access */ -#define TI_TASK 0x00000000 -#define TI_EXEC_DOMAIN 0x00000004 -#define TI_FLAGS 0x00000008 -#define TI_STATUS 0x0000000C -#define TI_CPU 0x00000010 -#define TI_PRE_COUNT 0x00000014 -#define TI_ADDR_LIMIT 0x00000018 -#define TI_RESTART_BLOCK 0x0000001C - -#endif - -#define PREEMPT_ACTIVE 0x4000000 - -/* - * macros/functions for gaining access to the thread information structure - * - * preempt_count needs to be 1 initially, until the scheduler is functional. - */ -#ifndef __ASSEMBLY__ - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = 1, \ - .addr_limit = KERNEL_DS, \ - .restart_block = { \ - .fn = do_no_restart_syscall, \ - }, \ -} - -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - -#ifdef CONFIG_SMALL_TASKS -#define THREAD_SIZE 4096 -#else -#define THREAD_SIZE 8192 -#endif - -/* how to get the thread information struct from C */ -register struct thread_info *__current_thread_info asm("gr15"); - -#define current_thread_info() ({ __current_thread_info; }) - -/* thread information allocation */ -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ - ({ \ - struct thread_info *ret; \ - \ - ret = kmalloc(THREAD_SIZE, GFP_KERNEL); \ - if (ret) \ - memset(ret, 0, THREAD_SIZE); \ - ret; \ - }) -#else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) -#endif - -#define free_thread_info(info) kfree(info) -#define get_thread_info(ti) get_task_struct((ti)->task) -#define put_thread_info(ti) put_task_struct((ti)->task) - -#else /* !__ASSEMBLY__ */ - -#define THREAD_SIZE 8192 - -#endif - -/* - * thread information flags - * - these are process state flags that various assembly files may need to access - * - pending work-to-be-done flags are in LSW - * - other flags in MSW - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ -#define TIF_SIGPENDING 2 /* signal pending */ -#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */ -#define TIF_IRET 5 /* return with iret */ -#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_MEMDIE 17 /* OOM killer killed process */ - -#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) -#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) -#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) -#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) -#define _TIF_IRET (1 << TIF_IRET) -#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) - -#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ -#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */ - -/* - * Thread-synchronous status. - * - * This is different from the flags in that nobody else - * ever touches our thread-synchronous status, so we don't - * have to worry about atomic accesses. - */ -#define TS_USEDFPM 0x0001 /* FPU/Media was used by this task this quantum (SMP) */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_THREAD_INFO_H */ |