/* * Copyright 2004-2010 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #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_ORDER 1 #define THREAD_SIZE 8192 /* 2 pages */ #define STACK_WARN (THREAD_SIZE/8) #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 */ 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 */ #ifndef CONFIG_SMP struct l1_scratch_task_info l1_task_info; #endif }; /* * macros/functions for gaining access to the thread information structure */ #define INIT_THREAD_INFO(tsk) \ { \ .task = &tsk, \ .flags = 0, \ .cpu = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ } #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) /* Given a task stack pointer, you can find its corresponding * thread_info structure just by masking it to the THREAD_SIZE * boundary (currently 8K as you can see above). */ __attribute_const__ static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; __asm__("%0 = sp;" : "=da"(ti)); return (struct thread_info *)((long)ti & ~((long)THREAD_SIZE-1)); } #endif /* __ASSEMBLY__ */ /* * 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_MEMDIE 4 /* is terminating due to OOM killer */ #define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */ #define TIF_IRQ_SYNC 7 /* sync pipeline stage */ #define TIF_NOTIFY_RESUME 8 /* callback before returning to user */ #define TIF_SINGLESTEP 9 /* 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_IRQ_SYNC (1<<TIF_IRQ_SYNC) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) #define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp | |
| bryan wu | bryan wu | 153 | 65.67% | 1 | 7.14% |
| mike frysinger | mike frysinger | 27 | 11.59% | 3 | 21.43% |
| robert p. j. day | robert p. j. day | 19 | 8.15% | 1 | 7.14% |
| philippe gerum | philippe gerum | 9 | 3.86% | 1 | 7.14% |
| robin getz | robin getz | 5 | 2.15% | 2 | 14.29% |
| barry song | barry song | 5 | 2.15% | 1 | 7.14% |
| sonic zhang | sonic zhang | 5 | 2.15% | 1 | 7.14% |
| stephane eranian | stephane eranian | 4 | 1.72% | 1 | 7.14% |
| fujita tomonori | fujita tomonori | 4 | 1.72% | 1 | 7.14% |
| richard weinberger | richard weinberger | 1 | 0.43% | 1 | 7.14% |
| andreas dilger | andreas dilger | 1 | 0.43% | 1 | 7.14% |
| Total | 233 | 100.00% | 14 | 100.00% |