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| 2 | |
| 3 | * include/asm-alpha/processor.h
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| 4 | *
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| 5 | * Copyright (C) 1994 Linus Torvalds
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| 6 |
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| 7 |
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| 8 | #ifndef __ASM_ALPHA_PROCESSOR_H
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| 9 | #define __ASM_ALPHA_PROCESSOR_H
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| 10 |
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| 11 | |
| 12 | * We have a 42-bit user address space: 4TB user VM...
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| 13 |
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| 14 | #define TASK_SIZE (0x40000000000UL)
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| 15 |
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| 16 | #define STACK_TOP (0x00120000000UL)
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| 17 |
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| 18 | #define STACK_TOP_MAX 0x00120000000UL
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| 19 |
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| 20 | |
| 21 | * space during mmap's.
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| 22 |
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| 23 | #define TASK_UNMAPPED_BASE (TASK_SIZE / 2)
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| 24 |
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| 25 |
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| 26 | struct thread_struct { };
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| 27 | #define INIT_THREAD { }
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| 28 |
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| 29 |
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| 30 | struct pt_regs;
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| 31 | extern void start_thread(struct pt_regs *, unsigned long, unsigned long);
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| 32 |
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| 33 |
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| 34 | struct task_struct;
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| 35 | unsigned long __get_wchan(struct task_struct *p);
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| 36 |
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| 37 | #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
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| 38 |
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| 39 | #define KSTK_ESP(tsk) \
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| 40 | ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)
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| 41 |
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| 42 | #define cpu_relax() barrier()
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| 43 |
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| 44 | #define ARCH_HAS_PREFETCH
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| 45 | #define ARCH_HAS_PREFETCHW
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| 46 |
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| 47 | extern inline void prefetch(const void *ptr)
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| 48 | {
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| 49 | __builtin_prefetch(ptr, 0, 3);
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| 50 | }
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| 51 |
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| 52 | extern inline void prefetchw(const void *ptr)
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| 53 | {
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| 54 | __builtin_prefetch(ptr, 1, 3);
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| 55 | }
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| 56 |
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| 57 | #endif
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