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review.trustedfirmware.org / hafnium / third_party / linux / 3a0ad55d848b50499b68d7141d4eca997fce28ef / . / arch / parisc / include / asm / compat.h
blob: ab8a54771507a1f0f7a42b66a6754b24fbe54744 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_PARISC_COMPAT_H
3#define _ASM_PARISC_COMPAT_H
4/*
5 * Architecture specific compatibility types
6 */
7#include <linux/types.h>
8#include <linux/sched.h>
9#include <linux/thread_info.h>
10
11#define COMPAT_USER_HZ 100
12#define COMPAT_UTS_MACHINE "parisc\0\0"
13
14typedef u32 compat_size_t;
15typedef s32 compat_ssize_t;
16typedef s32 compat_clock_t;
17typedef s32 compat_pid_t;
18typedef u32 __compat_uid_t;
19typedef u32 __compat_gid_t;
20typedef u32 __compat_uid32_t;
21typedef u32 __compat_gid32_t;
22typedef u16 compat_mode_t;
23typedef u32 compat_ino_t;
24typedef u32 compat_dev_t;
25typedef s32 compat_off_t;
26typedef s64 compat_loff_t;
27typedef u16 compat_nlink_t;
28typedef u16 compat_ipc_pid_t;
29typedef s32 compat_daddr_t;
30typedef u32 compat_caddr_t;
31typedef s32 compat_key_t;
32typedef s32 compat_timer_t;
33
34typedef s32 compat_int_t;
35typedef s32 compat_long_t;
36typedef s64 compat_s64;
37typedef u32 compat_uint_t;
38typedef u32 compat_ulong_t;
39typedef u64 compat_u64;
40typedef u32 compat_uptr_t;
41
42struct compat_stat {
43 compat_dev_t st_dev; /* dev_t is 32 bits on parisc */
44 compat_ino_t st_ino; /* 32 bits */
45 compat_mode_t st_mode; /* 16 bits */
46 compat_nlink_t st_nlink; /* 16 bits */
47 u16 st_reserved1; /* old st_uid */
48 u16 st_reserved2; /* old st_gid */
49 compat_dev_t st_rdev;
50 compat_off_t st_size;
51 compat_time_t st_atime;
52 u32 st_atime_nsec;
53 compat_time_t st_mtime;
54 u32 st_mtime_nsec;
55 compat_time_t st_ctime;
56 u32 st_ctime_nsec;
57 s32 st_blksize;
58 s32 st_blocks;
59 u32 __unused1; /* ACL stuff */
60 compat_dev_t __unused2; /* network */
61 compat_ino_t __unused3; /* network */
62 u32 __unused4; /* cnodes */
63 u16 __unused5; /* netsite */
64 short st_fstype;
65 compat_dev_t st_realdev;
66 u16 st_basemode;
67 u16 st_spareshort;
68 __compat_uid32_t st_uid;
69 __compat_gid32_t st_gid;
70 u32 st_spare4[3];
71};
72
73struct compat_flock {
74 short l_type;
75 short l_whence;
76 compat_off_t l_start;
77 compat_off_t l_len;
78 compat_pid_t l_pid;
79};
80
81struct compat_flock64 {
82 short l_type;
83 short l_whence;
84 compat_loff_t l_start;
85 compat_loff_t l_len;
86 compat_pid_t l_pid;
87};
88
89struct compat_statfs {
90 s32 f_type;
91 s32 f_bsize;
92 s32 f_blocks;
93 s32 f_bfree;
94 s32 f_bavail;
95 s32 f_files;
96 s32 f_ffree;
97 __kernel_fsid_t f_fsid;
98 s32 f_namelen;
99 s32 f_frsize;
100 s32 f_flags;
101 s32 f_spare[4];
102};
103
104struct compat_sigcontext {
105 compat_int_t sc_flags;
106 compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
107 u64 sc_fr[32];
108 compat_int_t sc_iasq[2];
109 compat_int_t sc_iaoq[2];
110 compat_int_t sc_sar; /* cr11 */
111};
112
113#define COMPAT_RLIM_INFINITY 0xffffffff
114
115typedef u32 compat_old_sigset_t; /* at least 32 bits */
116
117#define _COMPAT_NSIG 64
118#define _COMPAT_NSIG_BPW 32
119
120typedef u32 compat_sigset_word;
121
122#define COMPAT_OFF_T_MAX 0x7fffffff
123
124struct compat_ipc64_perm {
125 compat_key_t key;
126 __compat_uid_t uid;
127 __compat_gid_t gid;
128 __compat_uid_t cuid;
129 __compat_gid_t cgid;
130 unsigned short int __pad1;
131 compat_mode_t mode;
132 unsigned short int __pad2;
133 unsigned short int seq;
134 unsigned int __pad3;
135 unsigned long __unused1; /* yes they really are 64bit pads */
136 unsigned long __unused2;
137};
138
139struct compat_semid64_ds {
140 struct compat_ipc64_perm sem_perm;
141 unsigned int sem_otime_high;
142 unsigned int sem_otime;
143 unsigned int sem_ctime_high;
144 unsigned int sem_ctime;
145 compat_ulong_t sem_nsems;
146 compat_ulong_t __unused3;
147 compat_ulong_t __unused4;
148};
149
150struct compat_msqid64_ds {
151 struct compat_ipc64_perm msg_perm;
152 unsigned int msg_stime_high;
153 unsigned int msg_stime;
154 unsigned int msg_rtime_high;
155 unsigned int msg_rtime;
156 unsigned int msg_ctime_high;
157 unsigned int msg_ctime;
158 compat_ulong_t msg_cbytes;
159 compat_ulong_t msg_qnum;
160 compat_ulong_t msg_qbytes;
161 compat_pid_t msg_lspid;
162 compat_pid_t msg_lrpid;
163 compat_ulong_t __unused4;
164 compat_ulong_t __unused5;
165};
166
167struct compat_shmid64_ds {
168 struct compat_ipc64_perm shm_perm;
169 unsigned int shm_atime_high;
170 unsigned int shm_atime;
171 unsigned int shm_dtime_high;
172 unsigned int shm_dtime;
173 unsigned int shm_ctime_high;
174 unsigned int shm_ctime;
175 unsigned int __unused4;
176 compat_size_t shm_segsz;
177 compat_pid_t shm_cpid;
178 compat_pid_t shm_lpid;
179 compat_ulong_t shm_nattch;
180 compat_ulong_t __unused5;
181 compat_ulong_t __unused6;
182};
183
184/*
185 * The type of struct elf_prstatus.pr_reg in compatible core dumps.
186 */
187#define COMPAT_ELF_NGREG 80
188typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
189
190/*
191 * A pointer passed in from user mode. This should not
192 * be used for syscall parameters, just declare them
193 * as pointers because the syscall entry code will have
194 * appropriately converted them already.
195 */
196
197static inline void __user *compat_ptr(compat_uptr_t uptr)
198{
199 return (void __user *)(unsigned long)uptr;
200}
201
202static inline compat_uptr_t ptr_to_compat(void __user *uptr)
203{
204 return (u32)(unsigned long)uptr;
205}
206
207static __inline__ void __user *arch_compat_alloc_user_space(long len)
208{
209 struct pt_regs *regs = &current->thread.regs;
210 return (void __user *)regs->gr[30];
211}
212
213static inline int __is_compat_task(struct task_struct *t)
214{
215 return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
216}
217
218static inline int is_compat_task(void)
219{
220 return __is_compat_task(current);
221}
222
223#endif /* _ASM_PARISC_COMPAT_H */