[PATCH] remove for_each_cpu()
[linux-2.6.git] / arch / sparc64 / solaris / ipc.c
1 /* $Id: ipc.c,v 1.5 1999/12/09 00:41:00 davem Exp $
2  * ipc.c: Solaris IPC emulation
3  *
4  * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
5  */
6
7 #include <linux/kernel.h>
8 #include <linux/types.h>
9 #include <linux/smp_lock.h>
10 #include <linux/wait.h>
11 #include <linux/mm.h>
12 #include <linux/shm.h>
13 #include <linux/sem.h>
14 #include <linux/msg.h>
15
16 #include <asm/uaccess.h>
17 #include <asm/string.h>
18 #include <asm/ipc.h>
19
20 #include "conv.h"
21
22 struct solaris_ipc_perm {
23         s32     uid;
24         s32     gid;
25         s32     cuid;
26         s32     cgid;
27         u32     mode;
28         u32     seq;
29         int     key;
30         s32     pad[4];
31 };
32
33 struct solaris_shmid_ds {
34         struct solaris_ipc_perm shm_perm;
35         int                     shm_segsz;
36         u32                     shm_amp;
37         unsigned short          shm_lkcnt;
38         char                    __padxx[2];
39         s32                     shm_lpid;
40         s32                     shm_cpid;
41         u32                     shm_nattch;
42         u32                     shm_cnattch;
43         s32                     shm_atime;
44         s32                     shm_pad1;
45         s32                     shm_dtime;
46         s32                     shm_pad2;
47         s32                     shm_ctime;
48         s32                     shm_pad3;
49         unsigned short          shm_cv;
50         char                    shm_pad4[2];
51         u32                     shm_sptas;
52         s32                     shm_pad5[2];
53 };
54
55 asmlinkage long solaris_shmsys(int cmd, u32 arg1, u32 arg2, u32 arg3)
56 {
57         int (*sys_ipc)(unsigned,int,int,unsigned long,void __user *,long) = 
58                 (int (*)(unsigned,int,int,unsigned long,void __user *,long))SYS(ipc);
59         mm_segment_t old_fs;
60         unsigned long raddr;
61         int ret;
62                 
63         switch (cmd) {
64         case 0: /* shmat */
65                 old_fs = get_fs();
66                 set_fs(KERNEL_DS);
67                 ret = sys_ipc(SHMAT, arg1, arg3 & ~0x4000, (unsigned long)&raddr, A(arg2), 0);
68                 set_fs(old_fs);
69                 if (ret >= 0) return (u32)raddr;
70                 else return ret;
71         case 1: /* shmctl */
72                 switch (arg2) {
73                 case 3: /* SHM_LOCK */
74                 case 4: /* SHM_UNLOCK */
75                         return sys_ipc(SHMCTL, arg1, (arg2 == 3) ? SHM_LOCK : SHM_UNLOCK, 0, NULL, 0);
76                 case 10: /* IPC_RMID */
77                         return sys_ipc(SHMCTL, arg1, IPC_RMID, 0, NULL, 0);
78                 case 11: /* IPC_SET */
79                         {
80                                 struct shmid_ds s;
81                                 struct solaris_shmid_ds __user *p = A(arg3);
82                                 
83                                 if (get_user (s.shm_perm.uid, &p->shm_perm.uid) ||
84                                     __get_user (s.shm_perm.gid, &p->shm_perm.gid) || 
85                                     __get_user (s.shm_perm.mode, &p->shm_perm.mode))
86                                         return -EFAULT;
87                                 old_fs = get_fs();
88                                 set_fs(KERNEL_DS);
89                                 ret = sys_ipc(SHMCTL, arg1, IPC_SET, 0, &s, 0);
90                                 set_fs(old_fs);
91                                 return ret;
92                         }
93                 case 12: /* IPC_STAT */
94                         {
95                                 struct shmid_ds s;
96                                 struct solaris_shmid_ds __user *p = A(arg3);
97                                 
98                                 old_fs = get_fs();
99                                 set_fs(KERNEL_DS);
100                                 ret = sys_ipc(SHMCTL, arg1, IPC_SET, 0, &s, 0);
101                                 set_fs(old_fs);
102                                 if (put_user (s.shm_perm.uid, &(p->shm_perm.uid)) ||
103                                     __put_user (s.shm_perm.gid, &(p->shm_perm.gid)) || 
104                                     __put_user (s.shm_perm.cuid, &(p->shm_perm.cuid)) ||
105                                     __put_user (s.shm_perm.cgid, &(p->shm_perm.cgid)) || 
106                                     __put_user (s.shm_perm.mode, &(p->shm_perm.mode)) ||
107                                     __put_user (s.shm_perm.seq, &(p->shm_perm.seq)) ||
108                                     __put_user (s.shm_perm.key, &(p->shm_perm.key)) ||
109                                     __put_user (s.shm_segsz, &(p->shm_segsz)) ||
110                                     __put_user (s.shm_lpid, &(p->shm_lpid)) ||
111                                     __put_user (s.shm_cpid, &(p->shm_cpid)) ||
112                                     __put_user (s.shm_nattch, &(p->shm_nattch)) ||
113                                     __put_user (s.shm_atime, &(p->shm_atime)) ||
114                                     __put_user (s.shm_dtime, &(p->shm_dtime)) ||
115                                     __put_user (s.shm_ctime, &(p->shm_ctime)))
116                                         return -EFAULT;
117                                 return ret;
118                         }
119                 default: return -EINVAL;
120                 }
121         case 2: /* shmdt */
122                 return sys_ipc(SHMDT, 0, 0, 0, A(arg1), 0);
123         case 3: /* shmget */
124                 return sys_ipc(SHMGET, arg1, arg2, arg3, NULL, 0);
125         }
126         return -EINVAL;
127 }