projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| e5568f75 A |
6 | * The contents of this file constitute Original Code as defined in and |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 1c79356b | 11 | * |
| e5568f75 A |
12 | * This Original Code and all software distributed under the License are |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| e5568f75 A |
16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 1c79356b A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * @OSF_COPYRIGHT@ | |
| 24 | * | |
| 25 | */ | |
| 26 | ||
| 27 | #ifndef PPC_CPU_DATA | |
| 28 | #define PPC_CPU_DATA | |
| 29 | ||
| 55e303ae A |
30 | typedef struct |
| 31 | { | |
| 32 | int preemption_level; | |
| 33 | int simple_lock_count; | |
| 34 | int interrupt_level; | |
| 35 | } cpu_data_t; | |
| 1c79356b A |
36 | |
| 37 | #define disable_preemption _disable_preemption | |
| 38 | #define enable_preemption _enable_preemption | |
| 39 | #define enable_preemption_no_check _enable_preemption_no_check | |
| 40 | #define mp_disable_preemption _disable_preemption | |
| 41 | #define mp_enable_preemption _enable_preemption | |
| 42 | #define mp_enable_preemption_no_check _enable_preemption_no_check | |
| 43 | ||
| 9bccf70c A |
44 | extern __inline__ thread_act_t current_act(void) |
| 45 | { | |
| 46 | thread_act_t act; | |
| 47 | __asm__ volatile("mfsprg %0,1" : "=r" (act)); | |
| 48 | return act; | |
| 55e303ae A |
49 | }; |
| 50 | ||
| 51 | /* | |
| 52 | * Note that the following function is ONLY guaranteed when preemption or interrupts are disabled | |
| 53 | */ | |
| 54 | extern __inline__ struct per_proc_info *getPerProc(void) | |
| 55 | { | |
| 56 | struct per_proc_info *perproc; | |
| 57 | __asm__ volatile("mfsprg %0,0" : "=r" (perproc)); | |
| 58 | return perproc; | |
| 59 | }; | |
| 9bccf70c A |
60 | |
| 61 | #define current_thread() current_act()->thread | |
| 62 | ||
| 9bccf70c A |
63 | extern void set_machine_current_act(thread_act_t); |
| 64 | ||
| 1c79356b A |
65 | extern int get_preemption_level(void); |
| 66 | extern void disable_preemption(void); | |
| 67 | extern void enable_preemption(void); | |
| 68 | extern void enable_preemption_no_check(void); | |
| 69 | extern void mp_disable_preemption(void); | |
| 70 | extern void mp_enable_preemption(void); | |
| 71 | extern void mp_enable_preemption_no_check(void); | |
| 72 | extern int get_simple_lock_count(void); | |
| 1c79356b A |
73 | |
| 74 | #endif /* PPC_CPU_DATA */ |