]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 | 2 | /* |
1da177e4 | 3 | * S390 version |
a53c8fab | 4 | * Copyright IBM Corp. 2002, 2006 |
1da177e4 LT |
5 | * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) |
6 | */ | |
7 | ||
8 | #ifndef _ASM_THREAD_INFO_H | |
9 | #define _ASM_THREAD_INFO_H | |
10 | ||
92778b99 HC |
11 | #include <linux/const.h> |
12 | ||
1da177e4 LT |
13 | /* |
14 | * Size of kernel stack for each process | |
15 | */ | |
3a890380 | 16 | #define THREAD_SIZE_ORDER 2 |
1da177e4 | 17 | #define ASYNC_ORDER 2 |
1da177e4 | 18 | |
3a890380 | 19 | #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) |
1da177e4 LT |
20 | #define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER) |
21 | ||
22 | #ifndef __ASSEMBLY__ | |
1da177e4 | 23 | #include <asm/lowcore.h> |
25097bf1 CE |
24 | #include <asm/page.h> |
25 | #include <asm/processor.h> | |
1da177e4 LT |
26 | |
27 | /* | |
28 | * low level task data that entry.S needs immediate access to | |
29 | * - this struct should fit entirely inside of one cache line | |
30 | * - this struct shares the supervisor stack pages | |
31 | * - if the contents of this structure are changed, the assembly constants must also be changed | |
32 | */ | |
33 | struct thread_info { | |
1da177e4 | 34 | unsigned long flags; /* low level flags */ |
1da177e4 LT |
35 | }; |
36 | ||
37 | /* | |
38 | * macros/functions for gaining access to the thread information structure | |
39 | */ | |
40 | #define INIT_THREAD_INFO(tsk) \ | |
41 | { \ | |
1da177e4 | 42 | .flags = 0, \ |
1da177e4 LT |
43 | } |
44 | ||
1da177e4 LT |
45 | #define init_stack (init_thread_union.stack) |
46 | ||
2a5e91c3 | 47 | void arch_release_task_struct(struct task_struct *tsk); |
521b00cd | 48 | int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); |
2a5e91c3 | 49 | |
1da177e4 LT |
50 | #endif |
51 | ||
52 | /* | |
53 | * thread information flags bit numbers | |
54 | */ | |
30d64f19 | 55 | /* _TIF_WORK bits */ |
d3a73acb MS |
56 | #define TIF_NOTIFY_RESUME 0 /* callback before returning to user */ |
57 | #define TIF_SIGPENDING 1 /* signal pending */ | |
58 | #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ | |
916cda1a MS |
59 | #define TIF_UPROBE 3 /* breakpointed or single-stepping */ |
60 | #define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */ | |
76f1948a | 61 | #define TIF_PATCH_PENDING 5 /* pending live patching update */ |
23fefe11 | 62 | #define TIF_PGSTE 6 /* New mm's will use 4K page tables */ |
30d64f19 | 63 | |
d3a73acb MS |
64 | #define TIF_31BIT 16 /* 32bit process */ |
65 | #define TIF_MEMDIE 17 /* is terminating due to OOM killer */ | |
66 | #define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal() */ | |
67 | #define TIF_SINGLE_STEP 19 /* This task is single stepped */ | |
68 | #define TIF_BLOCK_STEP 20 /* This task is block stepped */ | |
2a0a5b22 | 69 | #define TIF_UPROBE_SINGLESTEP 21 /* This task is uprobe single stepped */ |
1da177e4 | 70 | |
30d64f19 JS |
71 | /* _TIF_TRACE bits */ |
72 | #define TIF_SYSCALL_TRACE 24 /* syscall trace active */ | |
73 | #define TIF_SYSCALL_AUDIT 25 /* syscall auditing active */ | |
74 | #define TIF_SECCOMP 26 /* secure computing */ | |
75 | #define TIF_SYSCALL_TRACEPOINT 27 /* syscall tracepoint instrumentation */ | |
76 | ||
92778b99 HC |
77 | #define _TIF_NOTIFY_RESUME _BITUL(TIF_NOTIFY_RESUME) |
78 | #define _TIF_SIGPENDING _BITUL(TIF_SIGPENDING) | |
79 | #define _TIF_NEED_RESCHED _BITUL(TIF_NEED_RESCHED) | |
30d64f19 | 80 | #define _TIF_UPROBE _BITUL(TIF_UPROBE) |
76f1948a | 81 | #define _TIF_GUARDED_STORAGE _BITUL(TIF_GUARDED_STORAGE) |
2f09ca60 | 82 | #define _TIF_PATCH_PENDING _BITUL(TIF_PATCH_PENDING) |
30d64f19 JS |
83 | |
84 | #define _TIF_31BIT _BITUL(TIF_31BIT) | |
85 | #define _TIF_SINGLE_STEP _BITUL(TIF_SINGLE_STEP) | |
86 | ||
92778b99 HC |
87 | #define _TIF_SYSCALL_TRACE _BITUL(TIF_SYSCALL_TRACE) |
88 | #define _TIF_SYSCALL_AUDIT _BITUL(TIF_SYSCALL_AUDIT) | |
89 | #define _TIF_SECCOMP _BITUL(TIF_SECCOMP) | |
90 | #define _TIF_SYSCALL_TRACEPOINT _BITUL(TIF_SYSCALL_TRACEPOINT) | |
1da177e4 | 91 | |
1da177e4 | 92 | #endif /* _ASM_THREAD_INFO_H */ |