Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003 PathScale, Inc. |
| 3 | * |
| 4 | * Licensed under the GPL |
| 5 | */ |
| 6 | |
| 7 | #ifndef __UM_PROCESSOR_X86_64_H |
| 8 | #define __UM_PROCESSOR_X86_64_H |
| 9 | |
| 10 | #include "asm/arch/user.h" |
| 11 | |
| 12 | struct arch_thread { |
| 13 | }; |
| 14 | |
| 15 | /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ |
| 16 | extern inline void rep_nop(void) |
| 17 | { |
| 18 | __asm__ __volatile__("rep;nop": : :"memory"); |
| 19 | } |
| 20 | |
| 21 | #define cpu_relax() rep_nop() |
| 22 | |
| 23 | #define INIT_ARCH_THREAD { } |
| 24 | |
| 25 | #define current_text_addr() \ |
| 26 | ({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; }) |
| 27 | |
| 28 | #define ARCH_IS_STACKGROW(address) \ |
| 29 | (address + 128 >= UPT_SP(¤t->thread.regs.regs)) |
| 30 | |
| 31 | #include "asm/processor-generic.h" |
| 32 | |
| 33 | #endif |
| 34 | |
| 35 | /* |
| 36 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 37 | * Emacs will notice this stuff at the end of the file and automatically |
| 38 | * adjust the settings for this buffer only. This must remain at the end |
| 39 | * of the file. |
| 40 | * --------------------------------------------------------------------------- |
| 41 | * Local variables: |
| 42 | * c-file-style: "linux" |
| 43 | * End: |
| 44 | */ |