diff options
Diffstat (limited to 'include/asm-mips/thread_info.h')
| -rw-r--r-- | include/asm-mips/thread_info.h | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/include/asm-mips/thread_info.h b/include/asm-mips/thread_info.h deleted file mode 100644 index bb30606..0000000 --- a/include/asm-mips/thread_info.h +++ /dev/null @@ -1,151 +0,0 @@ -/* thread_info.h: MIPS low-level thread information - * - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#ifdef __KERNEL__ - - -#ifndef __ASSEMBLY__ - -#include <asm/processor.h> - -/* - * 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 - */ -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 tp_value; /* thread pointer */ - __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; - struct pt_regs *regs; -}; - -/* - * macros/functions for gaining access to the thread information structure - * - * preempt_count needs to be 1 initially, until the scheduler is functional. - */ -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = _TIF_FIXADE, \ - .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) - -/* How to get the thread information struct from C. */ -register struct thread_info *__current_thread_info __asm__("$28"); -#define current_thread_info() __current_thread_info - -/* thread information allocation */ -#if defined(CONFIG_PAGE_SIZE_4KB) && defined(CONFIG_32BIT) -#define THREAD_SIZE_ORDER (1) -#endif -#if defined(CONFIG_PAGE_SIZE_4KB) && defined(CONFIG_64BIT) -#define THREAD_SIZE_ORDER (2) -#endif -#ifdef CONFIG_PAGE_SIZE_8KB -#define THREAD_SIZE_ORDER (1) -#endif -#ifdef CONFIG_PAGE_SIZE_16KB -#define THREAD_SIZE_ORDER (0) -#endif -#ifdef CONFIG_PAGE_SIZE_64KB -#define THREAD_SIZE_ORDER (0) -#endif - -#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) -#define THREAD_MASK (THREAD_SIZE - 1UL) - -#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR - -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ -({ \ - struct thread_info *ret; \ - \ - ret = kzalloc(THREAD_SIZE, GFP_KERNEL); \ - \ - ret; \ -}) -#else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) -#endif - -#define free_thread_info(info) kfree(info) - -#endif /* !__ASSEMBLY__ */ - -#define PREEMPT_ACTIVE 0x10000000 - -/* - * 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_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_SYSCALL_AUDIT 3 /* syscall auditing active */ -#define TIF_SECCOMP 4 /* secure computing */ -#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */ -#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ -#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_MEMDIE 18 -#define TIF_FREEZE 19 -#define TIF_FIXADE 20 /* Fix address errors in software */ -#define TIF_LOGADE 21 /* Log address errors to syslog */ -#define TIF_32BIT_REGS 22 /* also implies 16/32 fprs */ -#define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */ -#define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */ -#define TIF_SYSCALL_TRACE 31 /* syscall trace active */ - -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) -#define _TIF_SECCOMP (1<<TIF_SECCOMP) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) -#define _TIF_USEDFPU (1<<TIF_USEDFPU) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -#define _TIF_FREEZE (1<<TIF_FREEZE) -#define _TIF_FIXADE (1<<TIF_FIXADE) -#define _TIF_LOGADE (1<<TIF_LOGADE) -#define _TIF_32BIT_REGS (1<<TIF_32BIT_REGS) -#define _TIF_32BIT_ADDR (1<<TIF_32BIT_ADDR) -#define _TIF_FPUBOUND (1<<TIF_FPUBOUND) - -/* work to do on interrupt/exception return */ -#define _TIF_WORK_MASK (0x0000ffef & ~_TIF_SECCOMP) -/* work to do on any return to u-space */ -#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_THREAD_INFO_H */ |
