#ifndef _ALPHA_THREAD_INFO_H #define _ALPHA_THREAD_INFO_H #ifdef __KERNEL__ #ifndef __ASSEMBLY__ #include <asm/processor.h> #include <asm/types.h> #include <asm/hwrpb.h> #include <asm/sysinfo.h> #endif #ifndef __ASSEMBLY__ struct thread_info { struct pcb_struct pcb; /* palcode state */ struct task_struct *task; /* main task structure */ unsigned int flags; /* low level flags */ unsigned int ieee_state; /* see fpu.h */ mm_segment_t addr_limit; /* thread address space */ unsigned cpu; /* current CPU */ int preempt_count; /* 0 => preemptable, <0 => BUG */ unsigned int status; /* thread-synchronous flags */ int bpt_nsaved; unsigned long bpt_addr[2]; /* breakpoint handling */ unsigned int bpt_insn[2]; }; /* * Macros/functions for gaining access to the thread information structure. */ #define INIT_THREAD_INFO(tsk) \ { \ .task = &tsk, \ .addr_limit = KERNEL_DS, \ .preempt_count = INIT_PREEMPT_COUNT, \ } #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__("$8"); #define current_thread_info() __current_thread_info #endif /* __ASSEMBLY__ */ /* Thread information allocation. */ #define THREAD_SIZE_ORDER 1 #define THREAD_SIZE (2*PAGE_SIZE) /* * Thread information flags: * - these are process state flags and used from assembly * - pending work-to-be-done flags come first and must be assigned to be * within bits 0 to 7 to fit in and immediate operand. * * TIF_SYSCALL_TRACE is known to be 0 via blbs. */ #define TIF_SYSCALL_TRACE 0 /* syscall trace active */ #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ #define TIF_SYSCALL_AUDIT 4 /* syscall audit active */ #define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */ #define TIF_MEMDIE 13 /* is terminating due to OOM killer */ #define TIF_POLLING_NRFLAG 14 /* idle is polling for TIF_NEED_RESCHED */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) /* Work to do on interrupt/exception return. */ #define _TIF_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ _TIF_NOTIFY_RESUME) /* Work to do on any return to userspace. */ #define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \ | _TIF_SYSCALL_TRACE) #define TS_UAC_NOPRINT 0x0001 /* ! Preserve the following three */ #define TS_UAC_NOFIX 0x0002 /* ! flags as they match */ #define TS_UAC_SIGBUS 0x0004 /* ! userspace part of 'osf_sysinfo' */ #define SET_UNALIGN_CTL(task,value) ({ \ __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \ if (value & PR_UNALIGN_NOPRINT) \ status |= TS_UAC_NOPRINT; \ if (value & PR_UNALIGN_SIGBUS) \ status |= TS_UAC_SIGBUS; \ if (value & 4) /* alpha-specific */ \ status |= TS_UAC_NOFIX; \ task_thread_info(task)->status = status; \ 0; }) #define GET_UNALIGN_CTL(task,value) ({ \ __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \ __u32 res = 0; \ if (status & TS_UAC_NOPRINT) \ res |= PR_UNALIGN_NOPRINT; \ if (status & TS_UAC_SIGBUS) \ res |= PR_UNALIGN_SIGBUS; \ if (status & TS_UAC_NOFIX) \ res |= 4; \ put_user(res, (int __user *)(value)); \ }) #endif /* __KERNEL__ */ #endif /* _ALPHA_THREAD_INFO_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Richard Henderson | 158 | 62.95% | 1 | 7.14% |
| Al Viro | 29 | 11.55% | 3 | 21.43% |
| Ivan Kokshaysky | 20 | 7.97% | 1 | 7.14% |
| Peter Zijlstra | 9 | 3.59% | 1 | 7.14% |
| Michael Cree | 9 | 3.59% | 1 | 7.14% |
| 蔡正龙 | 9 | 3.59% | 1 | 7.14% |
| David Howells | 5 | 1.99% | 1 | 7.14% |
| FUJITA Tomonori | 4 | 1.59% | 1 | 7.14% |
| Andrea Arcangeli | 3 | 1.20% | 1 | 7.14% |
| Andrew Morton | 3 | 1.20% | 1 | 7.14% |
| Richard Weinberger | 1 | 0.40% | 1 | 7.14% |
| Andreas Dilger | 1 | 0.40% | 1 | 7.14% |
| Total | 251 | 100.00% | 14 | 100.00% |