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 | * | |
| 43866e37 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| 43866e37 A |
8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 43866e37 A |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 1c79356b A |
22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | /* | |
| 26 | * @OSF_COPYRIGHT@ | |
| 27 | * | |
| 28 | */ | |
| 29 | ||
| 30 | #ifndef PPC_CPU_DATA | |
| 31 | #define PPC_CPU_DATA | |
| 32 | ||
| 55e303ae A |
33 | typedef struct |
| 34 | { | |
| 35 | int preemption_level; | |
| 36 | int simple_lock_count; | |
| 37 | int interrupt_level; | |
| 38 | } cpu_data_t; | |
| 1c79356b A |
39 | |
| 40 | #define disable_preemption _disable_preemption | |
| 41 | #define enable_preemption _enable_preemption | |
| 42 | #define enable_preemption_no_check _enable_preemption_no_check | |
| 43 | #define mp_disable_preemption _disable_preemption | |
| 44 | #define mp_enable_preemption _enable_preemption | |
| 45 | #define mp_enable_preemption_no_check _enable_preemption_no_check | |
| 46 | ||
| 9bccf70c A |
47 | extern __inline__ thread_act_t current_act(void) |
| 48 | { | |
| 49 | thread_act_t act; | |
| 50 | __asm__ volatile("mfsprg %0,1" : "=r" (act)); | |
| 51 | return act; | |
| 55e303ae A |
52 | }; |
| 53 | ||
| 54 | /* | |
| 55 | * Note that the following function is ONLY guaranteed when preemption or interrupts are disabled | |
| 56 | */ | |
| 57 | extern __inline__ struct per_proc_info *getPerProc(void) | |
| 58 | { | |
| 59 | struct per_proc_info *perproc; | |
| 60 | __asm__ volatile("mfsprg %0,0" : "=r" (perproc)); | |
| 61 | return perproc; | |
| 62 | }; | |
| 9bccf70c A |
63 | |
| 64 | #define current_thread() current_act()->thread | |
| 65 | ||
| 9bccf70c A |
66 | extern void set_machine_current_act(thread_act_t); |
| 67 | ||
| 1c79356b A |
68 | extern int get_preemption_level(void); |
| 69 | extern void disable_preemption(void); | |
| 70 | extern void enable_preemption(void); | |
| 71 | extern void enable_preemption_no_check(void); | |
| 72 | extern void mp_disable_preemption(void); | |
| 73 | extern void mp_enable_preemption(void); | |
| 74 | extern void mp_enable_preemption_no_check(void); | |
| 75 | extern int get_simple_lock_count(void); | |
| 1c79356b A |
76 | |
| 77 | #endif /* PPC_CPU_DATA */ |