/* * Port on Texas Instruments TMS320C6x architecture * * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) * * Updated for 2.6.3x: Mark Salter <msalter@redhat.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _ASM_C6X_THREAD_INFO_H #define _ASM_C6X_THREAD_INFO_H #ifdef __KERNEL__ #include <asm/page.h> #ifdef CONFIG_4KSTACKS #define THREAD_SIZE 4096 #define THREAD_SHIFT 12 #define THREAD_SIZE_ORDER 0 #else #define THREAD_SIZE 8192 #define THREAD_SHIFT 13 #define THREAD_SIZE_ORDER 1 #endif #define THREAD_START_SP (THREAD_SIZE - 8) #ifndef __ASSEMBLY__ typedef struct { unsigned long seg; } mm_segment_t; /* * low level task data. */ 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; /* thread address space */ }; /* * 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, \ .flags = 0, \ .cpu = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ } #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) /* get the thread information struct of current task */ static inline __attribute__((const)) struct thread_info *current_thread_info(void) { struct thread_info *ti; asm volatile (" clr .s2 B15,0,%1,%0\n" : "=b" (ti) : "Iu5" (THREAD_SHIFT - 1)); return ti; } #define get_thread_info(ti) get_task_struct((ti)->task) #define put_thread_info(ti) put_task_struct((ti)->task) #endif /* __ASSEMBLY__ */ /* * thread information flag bit numbers * - 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_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */ #define TIF_MEMDIE 17 /* OOM killer killed process */ #define TIF_WORK_MASK 0x00007FFE /* work on irq/exception return */ #define TIF_ALLWORK_MASK 0x00007FFF /* work on any return to u-space */ #endif /* __KERNEL__ */ #endif /* _ASM_C6X_THREAD_INFO_H */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 865 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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bitops.h | File | 2.17 KB | 0644 |
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bug.h | File | 705 B | 0644 |
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cache.h | File | 3.1 KB | 0644 |
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cacheflush.h | File | 2.05 KB | 0644 |
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checksum.h | File | 947 B | 0644 |
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clock.h | File | 3.51 KB | 0644 |
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cmpxchg.h | File | 1.57 KB | 0644 |
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delay.h | File | 1.67 KB | 0644 |
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dma-mapping.h | File | 911 B | 0644 |
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dscr.h | File | 909 B | 0644 |
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elf.h | File | 3.18 KB | 0644 |
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flat.h | File | 677 B | 0644 |
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ftrace.h | File | 97 B | 0644 |
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hardirq.h | File | 572 B | 0644 |
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irq.h | File | 1.59 KB | 0644 |
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irqflags.h | File | 1.67 KB | 0644 |
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linkage.h | File | 497 B | 0644 |
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megamod-pic.h | File | 213 B | 0644 |
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module.h | File | 639 B | 0644 |
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page.h | File | 312 B | 0644 |
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pgtable.h | File | 2.29 KB | 0644 |
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processor.h | File | 3.31 KB | 0644 |
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procinfo.h | File | 673 B | 0644 |
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ptrace.h | File | 998 B | 0644 |
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sections.h | File | 287 B | 0644 |
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setup.h | File | 914 B | 0644 |
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soc.h | File | 929 B | 0644 |
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special_insns.h | File | 1.82 KB | 0644 |
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string.h | File | 616 B | 0644 |
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switch_to.h | File | 992 B | 0644 |
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syscall.h | File | 2.2 KB | 0644 |
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syscalls.h | File | 1.73 KB | 0644 |
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thread_info.h | File | 2.63 KB | 0644 |
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timer64.h | File | 154 B | 0644 |
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timex.h | File | 867 B | 0644 |
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tlb.h | File | 192 B | 0644 |
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traps.h | File | 1.29 KB | 0644 |
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uaccess.h | File | 2.14 KB | 0644 |
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unaligned.h | File | 4.63 KB | 0644 |
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