1#ifndef _ASM_M32R_THREAD_INFO_H
2#define _ASM_M32R_THREAD_INFO_H
3
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8
9
10
11#ifdef __KERNEL__
12
13#ifndef __ASSEMBLY__
14#include <asm/processor.h>
15#endif
16
17
18
19
20
21
22
23#ifndef __ASSEMBLY__
24
25struct thread_info {
26 struct task_struct *task;
27 struct exec_domain *exec_domain;
28 unsigned long flags;
29 unsigned long status;
30 __u32 cpu;
31 int preempt_count;
32
33 mm_segment_t addr_limit;
34
35
36
37 struct restart_block restart_block;
38
39 __u8 supervisor_stack[0];
40};
41
42#else
43
44
45#define TI_TASK 0x00000000
46#define TI_EXEC_DOMAIN 0x00000004
47#define TI_FLAGS 0x00000008
48#define TI_STATUS 0x0000000C
49#define TI_CPU 0x00000010
50#define TI_PRE_COUNT 0x00000014
51#define TI_ADDR_LIMIT 0x00000018
52#define TI_RESTART_BLOCK 0x000001C
53
54#endif
55
56#define PREEMPT_ACTIVE 0x10000000
57
58#define THREAD_SIZE (PAGE_SIZE << 1)
59
60
61
62
63#ifndef __ASSEMBLY__
64
65#define INIT_THREAD_INFO(tsk) \
66{ \
67 .task = &tsk, \
68 .exec_domain = &default_exec_domain, \
69 .flags = 0, \
70 .cpu = 0, \
71 .preempt_count = INIT_PREEMPT_COUNT, \
72 .addr_limit = KERNEL_DS, \
73 .restart_block = { \
74 .fn = do_no_restart_syscall, \
75 }, \
76}
77
78#define init_thread_info (init_thread_union.thread_info)
79#define init_stack (init_thread_union.stack)
80
81
82static inline struct thread_info *current_thread_info(void)
83{
84 struct thread_info *ti;
85
86 __asm__ __volatile__ (
87 "ldi %0, #%1 \n\t"
88 "and %0, sp \n\t"
89 : "=r" (ti) : "i" (~(THREAD_SIZE - 1))
90 );
91
92 return ti;
93}
94
95#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
96
97
98#ifdef CONFIG_DEBUG_STACK_USAGE
99#define alloc_thread_info_node(tsk, node) \
100 kzalloc_node(THREAD_SIZE, GFP_KERNEL, node)
101#else
102#define alloc_thread_info_node(tsk, node) \
103 kmalloc_node(THREAD_SIZE, GFP_KERNEL, node)
104#endif
105
106#define free_thread_info(info) kfree(info)
107
108#define TI_FLAG_FAULT_CODE_SHIFT 28
109
110static inline void set_thread_fault_code(unsigned int val)
111{
112 struct thread_info *ti = current_thread_info();
113 ti->flags = (ti->flags & (~0 >> (32 - TI_FLAG_FAULT_CODE_SHIFT)))
114 | (val << TI_FLAG_FAULT_CODE_SHIFT);
115}
116
117static inline unsigned int get_thread_fault_code(void)
118{
119 struct thread_info *ti = current_thread_info();
120 return ti->flags >> TI_FLAG_FAULT_CODE_SHIFT;
121}
122
123#endif
124
125
126
127
128
129
130
131#define TIF_SYSCALL_TRACE 0
132#define TIF_SIGPENDING 1
133#define TIF_NEED_RESCHED 2
134#define TIF_SINGLESTEP 3
135#define TIF_IRET 4
136#define TIF_NOTIFY_RESUME 5
137#define TIF_RESTORE_SIGMASK 8
138#define TIF_USEDFPU 16
139#define TIF_POLLING_NRFLAG 17
140#define TIF_MEMDIE 18
141#define TIF_FREEZE 19
142
143#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
144#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
145#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
146#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
147#define _TIF_IRET (1<<TIF_IRET)
148#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
149#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
150#define _TIF_USEDFPU (1<<TIF_USEDFPU)
151#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
152#define _TIF_FREEZE (1<<TIF_FREEZE)
153
154#define _TIF_WORK_MASK 0x0000FFFE
155#define _TIF_ALLWORK_MASK 0x0000FFFF
156
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162
163
164#define TS_USEDFPU 0x0001
165
166#endif
167
168#endif
169