| | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| | 2 | /* |
| | 3 | * include/asm-alpha/processor.h |
| | 4 | * |
| | 5 | * Copyright (C) 1994 Linus Torvalds |
| | 6 | */ |
| | 7 | |
| | 8 | #ifndef __ASM_ALPHA_PROCESSOR_H |
| | 9 | #define __ASM_ALPHA_PROCESSOR_H |
| | 10 | |
| | 11 | /* |
| | 12 | * We have a 42-bit user address space: 4TB user VM... |
| | 13 | */ |
| | 14 | #define TASK_SIZE (0x40000000000UL) |
| | 15 | |
| | 16 | #define STACK_TOP (0x00120000000UL) |
| | 17 | |
| | 18 | #define STACK_TOP_MAX 0x00120000000UL |
| | 19 | |
| | 20 | /* This decides where the kernel will search for a free chunk of vm |
| | 21 | * space during mmap's. |
| | 22 | */ |
| | 23 | #define TASK_UNMAPPED_BASE (TASK_SIZE / 2) |
| | 24 | |
| | 25 | /* This is dead. Everything has been moved to thread_info. */ |
| | 26 | struct thread_struct { }; |
| | 27 | #define INIT_THREAD { } |
| | 28 | |
| | 29 | /* Do necessary setup to start up a newly executed thread. */ |
| | 30 | struct pt_regs; |
| | 31 | extern void start_thread(struct pt_regs *, unsigned long, unsigned long); |
| | 32 | |
| | 33 | /* Free all resources held by a thread. */ |
| | 34 | struct task_struct; |
| | 35 | unsigned long __get_wchan(struct task_struct *p); |
| | 36 | |
| | 37 | #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) |
| | 38 | |
| | 39 | #define KSTK_ESP(tsk) \ |
| | 40 | ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp) |
| | 41 | |
| | 42 | #define cpu_relax() barrier() |
| | 43 | |
| | 44 | #define ARCH_HAS_PREFETCH |
| | 45 | #define ARCH_HAS_PREFETCHW |
| | 46 | |
| | 47 | extern inline void prefetch(const void *ptr) |
| | 48 | { |
| | 49 | __builtin_prefetch(ptr, 0, 3); |
| | 50 | } |
| | 51 | |
| | 52 | extern inline void prefetchw(const void *ptr) |
| | 53 | { |
| | 54 | __builtin_prefetch(ptr, 1, 3); |
| | 55 | } |
| | 56 | |
| | 57 | #endif /* __ASM_ALPHA_PROCESSOR_H */ |
projects / linux-2.6-block.git / blame_incremental