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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
commitfcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch)
treea57612d1888735a2ec7972891b68c1ac5ec8faea /arch/alpha
parent8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff)
Added missing tegra files.HEADmaster
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/include/asm/auxvec.h24
-rw-r--r--arch/alpha/include/asm/bitsperlong.h8
-rw-r--r--arch/alpha/include/asm/byteorder.h6
-rw-r--r--arch/alpha/include/asm/errno.h127
-rw-r--r--arch/alpha/include/asm/fcntl.h58
-rw-r--r--arch/alpha/include/asm/gentrap.h37
-rw-r--r--arch/alpha/include/asm/ioctl.h66
-rw-r--r--arch/alpha/include/asm/ioctls.h114
-rw-r--r--arch/alpha/include/asm/ipcbuf.h28
-rw-r--r--arch/alpha/include/asm/mman.h62
-rw-r--r--arch/alpha/include/asm/msgbuf.h27
-rw-r--r--arch/alpha/include/asm/poll.h1
-rw-r--r--arch/alpha/include/asm/posix_types.h123
-rw-r--r--arch/alpha/include/asm/reg.h52
-rw-r--r--arch/alpha/include/asm/regdef.h44
-rw-r--r--arch/alpha/include/asm/resource.h22
-rw-r--r--arch/alpha/include/asm/sembuf.h22
-rw-r--r--arch/alpha/include/asm/setup.h6
-rw-r--r--arch/alpha/include/asm/shmbuf.h38
-rw-r--r--arch/alpha/include/asm/sigcontext.h34
-rw-r--r--arch/alpha/include/asm/siginfo.h9
-rw-r--r--arch/alpha/include/asm/sockios.h16
-rw-r--r--arch/alpha/include/asm/stat.h48
-rw-r--r--arch/alpha/include/asm/statfs.h12
-rw-r--r--arch/alpha/include/asm/swab.h42
-rw-r--r--arch/alpha/include/asm/sysinfo.h30
-rw-r--r--arch/alpha/include/asm/system.h354
-rw-r--r--arch/alpha/include/asm/termbits.h201
-rw-r--r--arch/alpha/kernel/init_task.c17
-rw-r--r--arch/alpha/lib/ev6-strncpy_from_user.S424
-rw-r--r--arch/alpha/lib/ev67-strlen_user.S107
-rw-r--r--arch/alpha/lib/strlen_user.S91
-rw-r--r--arch/alpha/lib/strncpy_from_user.S339
33 files changed, 2589 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/auxvec.h b/arch/alpha/include/asm/auxvec.h
new file mode 100644
index 00000000000..e96fe880e31
--- /dev/null
+++ b/arch/alpha/include/asm/auxvec.h
@@ -0,0 +1,24 @@
1#ifndef __ASM_ALPHA_AUXVEC_H
2#define __ASM_ALPHA_AUXVEC_H
3
4/* Reserve these numbers for any future use of a VDSO. */
5#if 0
6#define AT_SYSINFO 32
7#define AT_SYSINFO_EHDR 33
8#endif
9
10/* More complete cache descriptions than AT_[DIU]CACHEBSIZE. If the
11 value is -1, then the cache doesn't exist. Otherwise:
12
13 bit 0-3: Cache set-associativity; 0 means fully associative.
14 bit 4-7: Log2 of cacheline size.
15 bit 8-31: Size of the entire cache >> 8.
16 bit 32-63: Reserved.
17*/
18
19#define AT_L1I_CACHESHAPE 34
20#define AT_L1D_CACHESHAPE 35
21#define AT_L2_CACHESHAPE 36
22#define AT_L3_CACHESHAPE 37
23
24#endif /* __ASM_ALPHA_AUXVEC_H */
diff --git a/arch/alpha/include/asm/bitsperlong.h b/arch/alpha/include/asm/bitsperlong.h
new file mode 100644
index 00000000000..ad57f786820
--- /dev/null
+++ b/arch/alpha/include/asm/bitsperlong.h
@@ -0,0 +1,8 @@
1#ifndef __ASM_ALPHA_BITSPERLONG_H
2#define __ASM_ALPHA_BITSPERLONG_H
3
4#define __BITS_PER_LONG 64
5
6#include <asm-generic/bitsperlong.h>
7
8#endif /* __ASM_ALPHA_BITSPERLONG_H */
diff --git a/arch/alpha/include/asm/byteorder.h b/arch/alpha/include/asm/byteorder.h
new file mode 100644
index 00000000000..73683093202
--- /dev/null
+++ b/arch/alpha/include/asm/byteorder.h
@@ -0,0 +1,6 @@
1#ifndef _ALPHA_BYTEORDER_H
2#define _ALPHA_BYTEORDER_H
3
4#include <linux/byteorder/little_endian.h>
5
6#endif /* _ALPHA_BYTEORDER_H */
diff --git a/arch/alpha/include/asm/errno.h b/arch/alpha/include/asm/errno.h
new file mode 100644
index 00000000000..e5f29ca2818
--- /dev/null
+++ b/arch/alpha/include/asm/errno.h
@@ -0,0 +1,127 @@
1#ifndef _ALPHA_ERRNO_H
2#define _ALPHA_ERRNO_H
3
4#include <asm-generic/errno-base.h>
5
6#undef EAGAIN /* 11 in errno-base.h */
7
8#define EDEADLK 11 /* Resource deadlock would occur */
9
10#define EAGAIN 35 /* Try again */
11#define EWOULDBLOCK EAGAIN /* Operation would block */
12#define EINPROGRESS 36 /* Operation now in progress */
13#define EALREADY 37 /* Operation already in progress */
14#define ENOTSOCK 38 /* Socket operation on non-socket */
15#define EDESTADDRREQ 39 /* Destination address required */
16#define EMSGSIZE 40 /* Message too long */
17#define EPROTOTYPE 41 /* Protocol wrong type for socket */
18#define ENOPROTOOPT 42 /* Protocol not available */
19#define EPROTONOSUPPORT 43 /* Protocol not supported */
20#define ESOCKTNOSUPPORT 44 /* Socket type not supported */
21#define EOPNOTSUPP 45 /* Operation not supported on transport endpoint */
22#define EPFNOSUPPORT 46 /* Protocol family not supported */
23#define EAFNOSUPPORT 47 /* Address family not supported by protocol */
24#define EADDRINUSE 48 /* Address already in use */
25#define EADDRNOTAVAIL 49 /* Cannot assign requested address */
26#define ENETDOWN 50 /* Network is down */
27#define ENETUNREACH 51 /* Network is unreachable */
28#define ENETRESET 52 /* Network dropped connection because of reset */
29#define ECONNABORTED 53 /* Software caused connection abort */
30#define ECONNRESET 54 /* Connection reset by peer */
31#define ENOBUFS 55 /* No buffer space available */
32#define EISCONN 56 /* Transport endpoint is already connected */
33#define ENOTCONN 57 /* Transport endpoint is not connected */
34#define ESHUTDOWN 58 /* Cannot send after transport endpoint shutdown */
35#define ETOOMANYREFS 59 /* Too many references: cannot splice */
36#define ETIMEDOUT 60 /* Connection timed out */
37#define ECONNREFUSED 61 /* Connection refused */
38#define ELOOP 62 /* Too many symbolic links encountered */
39#define ENAMETOOLONG 63 /* File name too long */
40#define EHOSTDOWN 64 /* Host is down */
41#define EHOSTUNREACH 65 /* No route to host */
42#define ENOTEMPTY 66 /* Directory not empty */
43
44#define EUSERS 68 /* Too many users */
45#define EDQUOT 69 /* Quota exceeded */
46#define ESTALE 70 /* Stale NFS file handle */
47#define EREMOTE 71 /* Object is remote */
48
49#define ENOLCK 77 /* No record locks available */
50#define ENOSYS 78 /* Function not implemented */
51
52#define ENOMSG 80 /* No message of desired type */
53#define EIDRM 81 /* Identifier removed */
54#define ENOSR 82 /* Out of streams resources */
55#define ETIME 83 /* Timer expired */
56#define EBADMSG 84 /* Not a data message */
57#define EPROTO 85 /* Protocol error */
58#define ENODATA 86 /* No data available */
59#define ENOSTR 87 /* Device not a stream */
60
61#define ENOPKG 92 /* Package not installed */
62
63#define EILSEQ 116 /* Illegal byte sequence */
64
65/* The following are just random noise.. */
66#define ECHRNG 88 /* Channel number out of range */
67#define EL2NSYNC 89 /* Level 2 not synchronized */
68#define EL3HLT 90 /* Level 3 halted */
69#define EL3RST 91 /* Level 3 reset */
70
71#define ELNRNG 93 /* Link number out of range */
72#define EUNATCH 94 /* Protocol driver not attached */
73#define ENOCSI 95 /* No CSI structure available */
74#define EL2HLT 96 /* Level 2 halted */
75#define EBADE 97 /* Invalid exchange */
76#define EBADR 98 /* Invalid request descriptor */
77#define EXFULL 99 /* Exchange full */
78#define ENOANO 100 /* No anode */
79#define EBADRQC 101 /* Invalid request code */
80#define EBADSLT 102 /* Invalid slot */
81
82#define EDEADLOCK EDEADLK
83
84#define EBFONT 104 /* Bad font file format */
85#define ENONET 105 /* Machine is not on the network */
86#define ENOLINK 106 /* Link has been severed */
87#define EADV 107 /* Advertise error */
88#define ESRMNT 108 /* Srmount error */
89#define ECOMM 109 /* Communication error on send */
90#define EMULTIHOP 110 /* Multihop attempted */
91#define EDOTDOT 111 /* RFS specific error */
92#define EOVERFLOW 112 /* Value too large for defined data type */
93#define ENOTUNIQ 113 /* Name not unique on network */
94#define EBADFD 114 /* File descriptor in bad state */
95#define EREMCHG 115 /* Remote address changed */
96
97#define EUCLEAN 117 /* Structure needs cleaning */
98#define ENOTNAM 118 /* Not a XENIX named type file */
99#define ENAVAIL 119 /* No XENIX semaphores available */
100#define EISNAM 120 /* Is a named type file */
101#define EREMOTEIO 121 /* Remote I/O error */
102
103#define ELIBACC 122 /* Can not access a needed shared library */
104#define ELIBBAD 123 /* Accessing a corrupted shared library */
105#define ELIBSCN 124 /* .lib section in a.out corrupted */
106#define ELIBMAX 125 /* Attempting to link in too many shared libraries */
107#define ELIBEXEC 126 /* Cannot exec a shared library directly */
108#define ERESTART 127 /* Interrupted system call should be restarted */
109#define ESTRPIPE 128 /* Streams pipe error */
110
111#define ENOMEDIUM 129 /* No medium found */
112#define EMEDIUMTYPE 130 /* Wrong medium type */
113#define ECANCELED 131 /* Operation Cancelled */
114#define ENOKEY 132 /* Required key not available */
115#define EKEYEXPIRED 133 /* Key has expired */
116#define EKEYREVOKED 134 /* Key has been revoked */
117#define EKEYREJECTED 135 /* Key was rejected by service */
118
119/* for robust mutexes */
120#define EOWNERDEAD 136 /* Owner died */
121#define ENOTRECOVERABLE 137 /* State not recoverable */
122
123#define ERFKILL 138 /* Operation not possible due to RF-kill */
124
125#define EHWPOISON 139 /* Memory page has hardware error */
126
127#endif
diff --git a/arch/alpha/include/asm/fcntl.h b/arch/alpha/include/asm/fcntl.h
new file mode 100644
index 00000000000..1b71ca70c9f
--- /dev/null
+++ b/arch/alpha/include/asm/fcntl.h
@@ -0,0 +1,58 @@
1#ifndef _ALPHA_FCNTL_H
2#define _ALPHA_FCNTL_H
3
4#define O_CREAT 01000 /* not fcntl */
5#define O_TRUNC 02000 /* not fcntl */
6#define O_EXCL 04000 /* not fcntl */
7#define O_NOCTTY 010000 /* not fcntl */
8
9#define O_NONBLOCK 00004
10#define O_APPEND 00010
11#define O_DSYNC 040000 /* used to be O_SYNC, see below */
12#define O_DIRECTORY 0100000 /* must be a directory */
13#define O_NOFOLLOW 0200000 /* don't follow links */
14#define O_LARGEFILE 0400000 /* will be set by the kernel on every open */
15#define O_DIRECT 02000000 /* direct disk access - should check with OSF/1 */
16#define O_NOATIME 04000000
17#define O_CLOEXEC 010000000 /* set close_on_exec */
18/*
19 * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
20 * the O_SYNC flag. We continue to use the existing numerical value
21 * for O_DSYNC semantics now, but using the correct symbolic name for it.
22 * This new value is used to request true Posix O_SYNC semantics. It is
23 * defined in this strange way to make sure applications compiled against
24 * new headers get at least O_DSYNC semantics on older kernels.
25 *
26 * This has the nice side-effect that we can simply test for O_DSYNC
27 * wherever we do not care if O_DSYNC or O_SYNC is used.
28 *
29 * Note: __O_SYNC must never be used directly.
30 */
31#define __O_SYNC 020000000
32#define O_SYNC (__O_SYNC|O_DSYNC)
33
34#define O_PATH 040000000
35
36#define F_GETLK 7
37#define F_SETLK 8
38#define F_SETLKW 9
39
40#define F_SETOWN 5 /* for sockets. */
41#define F_GETOWN 6 /* for sockets. */
42#define F_SETSIG 10 /* for sockets. */
43#define F_GETSIG 11 /* for sockets. */
44
45/* for posix fcntl() and lockf() */
46#define F_RDLCK 1
47#define F_WRLCK 2
48#define F_UNLCK 8
49
50/* for old implementation of bsd flock () */
51#define F_EXLCK 16 /* or 3 */
52#define F_SHLCK 32 /* or 4 */
53
54#define F_INPROGRESS 64
55
56#include <asm-generic/fcntl.h>
57
58#endif
diff --git a/arch/alpha/include/asm/gentrap.h b/arch/alpha/include/asm/gentrap.h
new file mode 100644
index 00000000000..ae50cc3192c
--- /dev/null
+++ b/arch/alpha/include/asm/gentrap.h
@@ -0,0 +1,37 @@
1#ifndef _ASMAXP_GENTRAP_H
2#define _ASMAXP_GENTRAP_H
3
4/*
5 * Definitions for gentrap causes. They are generated by user-level
6 * programs and therefore should be compatible with the corresponding
7 * OSF/1 definitions.
8 */
9#define GEN_INTOVF -1 /* integer overflow */
10#define GEN_INTDIV -2 /* integer division by zero */
11#define GEN_FLTOVF -3 /* fp overflow */
12#define GEN_FLTDIV -4 /* fp division by zero */
13#define GEN_FLTUND -5 /* fp underflow */
14#define GEN_FLTINV -6 /* invalid fp operand */
15#define GEN_FLTINE -7 /* inexact fp operand */
16#define GEN_DECOVF -8 /* decimal overflow (for COBOL??) */
17#define GEN_DECDIV -9 /* decimal division by zero */
18#define GEN_DECINV -10 /* invalid decimal operand */
19#define GEN_ROPRAND -11 /* reserved operand */
20#define GEN_ASSERTERR -12 /* assertion error */
21#define GEN_NULPTRERR -13 /* null pointer error */
22#define GEN_STKOVF -14 /* stack overflow */
23#define GEN_STRLENERR -15 /* string length error */
24#define GEN_SUBSTRERR -16 /* substring error */
25#define GEN_RANGERR -17 /* range error */
26#define GEN_SUBRNG -18
27#define GEN_SUBRNG1 -19
28#define GEN_SUBRNG2 -20
29#define GEN_SUBRNG3 -21 /* these report range errors for */
30#define GEN_SUBRNG4 -22 /* subscripting (indexing) at levels 0..7 */
31#define GEN_SUBRNG5 -23
32#define GEN_SUBRNG6 -24
33#define GEN_SUBRNG7 -25
34
35/* the remaining codes (-26..-1023) are reserved. */
36
37#endif /* _ASMAXP_GENTRAP_H */
diff --git a/arch/alpha/include/asm/ioctl.h b/arch/alpha/include/asm/ioctl.h
new file mode 100644
index 00000000000..fc63727f417
--- /dev/null
+++ b/arch/alpha/include/asm/ioctl.h
@@ -0,0 +1,66 @@
1#ifndef _ALPHA_IOCTL_H
2#define _ALPHA_IOCTL_H
3
4/*
5 * The original linux ioctl numbering scheme was just a general
6 * "anything goes" setup, where more or less random numbers were
7 * assigned. Sorry, I was clueless when I started out on this.
8 *
9 * On the alpha, we'll try to clean it up a bit, using a more sane
10 * ioctl numbering, and also trying to be compatible with OSF/1 in
11 * the process. I'd like to clean it up for the i386 as well, but
12 * it's so painful recognizing both the new and the old numbers..
13 */
14
15#define _IOC_NRBITS 8
16#define _IOC_TYPEBITS 8
17#define _IOC_SIZEBITS 13
18#define _IOC_DIRBITS 3
19
20#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1)
21#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1)
22#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1)
23#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1)
24
25#define _IOC_NRSHIFT 0
26#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS)
27#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS)
28#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS)
29
30/*
31 * Direction bits _IOC_NONE could be 0, but OSF/1 gives it a bit.
32 * And this turns out useful to catch old ioctl numbers in header
33 * files for us.
34 */
35#define _IOC_NONE 1U
36#define _IOC_READ 2U
37#define _IOC_WRITE 4U
38
39#define _IOC(dir,type,nr,size) \
40 ((unsigned int) \
41 (((dir) << _IOC_DIRSHIFT) | \
42 ((type) << _IOC_TYPESHIFT) | \
43 ((nr) << _IOC_NRSHIFT) | \
44 ((size) << _IOC_SIZESHIFT)))
45
46/* used to create numbers */
47#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0)
48#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size))
49#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
50#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
51
52/* used to decode them.. */
53#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
54#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
55#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
56#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
57
58/* ...and for the drivers/sound files... */
59
60#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT)
61#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT)
62#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
63#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT)
64#define IOCSIZE_SHIFT (_IOC_SIZESHIFT)
65
66#endif /* _ALPHA_IOCTL_H */
diff --git a/arch/alpha/include/asm/ioctls.h b/arch/alpha/include/asm/ioctls.h
new file mode 100644
index 00000000000..80e1cee90f1
--- /dev/null
+++ b/arch/alpha/include/asm/ioctls.h
@@ -0,0 +1,114 @@
1#ifndef _ASM_ALPHA_IOCTLS_H
2#define _ASM_ALPHA_IOCTLS_H
3
4#include <asm/ioctl.h>
5
6#define FIOCLEX _IO('f', 1)
7#define FIONCLEX _IO('f', 2)
8#define FIOASYNC _IOW('f', 125, int)
9#define FIONBIO _IOW('f', 126, int)
10#define FIONREAD _IOR('f', 127, int)
11#define TIOCINQ FIONREAD
12#define FIOQSIZE _IOR('f', 128, loff_t)
13
14#define TIOCGETP _IOR('t', 8, struct sgttyb)
15#define TIOCSETP _IOW('t', 9, struct sgttyb)
16#define TIOCSETN _IOW('t', 10, struct sgttyb) /* TIOCSETP wo flush */
17
18#define TIOCSETC _IOW('t', 17, struct tchars)
19#define TIOCGETC _IOR('t', 18, struct tchars)
20#define TCGETS _IOR('t', 19, struct termios)
21#define TCSETS _IOW('t', 20, struct termios)
22#define TCSETSW _IOW('t', 21, struct termios)
23#define TCSETSF _IOW('t', 22, struct termios)
24
25#define TCGETA _IOR('t', 23, struct termio)
26#define TCSETA _IOW('t', 24, struct termio)
27#define TCSETAW _IOW('t', 25, struct termio)
28#define TCSETAF _IOW('t', 28, struct termio)
29
30#define TCSBRK _IO('t', 29)
31#define TCXONC _IO('t', 30)
32#define TCFLSH _IO('t', 31)
33
34#define TIOCSWINSZ _IOW('t', 103, struct winsize)
35#define TIOCGWINSZ _IOR('t', 104, struct winsize)
36#define TIOCSTART _IO('t', 110) /* start output, like ^Q */
37#define TIOCSTOP _IO('t', 111) /* stop output, like ^S */
38#define TIOCOUTQ _IOR('t', 115, int) /* output queue size */
39
40#define TIOCGLTC _IOR('t', 116, struct ltchars)
41#define TIOCSLTC _IOW('t', 117, struct ltchars)
42#define TIOCSPGRP _IOW('t', 118, int)
43#define TIOCGPGRP _IOR('t', 119, int)
44
45#define TIOCEXCL 0x540C
46#define TIOCNXCL 0x540D
47#define TIOCSCTTY 0x540E
48
49#define TIOCSTI 0x5412
50#define TIOCMGET 0x5415
51#define TIOCMBIS 0x5416
52#define TIOCMBIC 0x5417
53#define TIOCMSET 0x5418
54# define TIOCM_LE 0x001
55# define TIOCM_DTR 0x002
56# define TIOCM_RTS 0x004
57# define TIOCM_ST 0x008
58# define TIOCM_SR 0x010
59# define TIOCM_CTS 0x020
60# define TIOCM_CAR 0x040
61# define TIOCM_RNG 0x080
62# define TIOCM_DSR 0x100
63# define TIOCM_CD TIOCM_CAR
64# define TIOCM_RI TIOCM_RNG
65# define TIOCM_OUT1 0x2000
66# define TIOCM_OUT2 0x4000
67# define TIOCM_LOOP 0x8000
68
69#define TIOCGSOFTCAR 0x5419
70#define TIOCSSOFTCAR 0x541A
71#define TIOCLINUX 0x541C
72#define TIOCCONS 0x541D
73#define TIOCGSERIAL 0x541E
74#define TIOCSSERIAL 0x541F
75#define TIOCPKT 0x5420
76# define TIOCPKT_DATA 0
77# define TIOCPKT_FLUSHREAD 1
78# define TIOCPKT_FLUSHWRITE 2
79# define TIOCPKT_STOP 4
80# define TIOCPKT_START 8
81# define TIOCPKT_NOSTOP 16
82# define TIOCPKT_DOSTOP 32
83# define TIOCPKT_IOCTL 64
84
85
86#define TIOCNOTTY 0x5422
87#define TIOCSETD 0x5423
88#define TIOCGETD 0x5424
89#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
90#define TIOCSBRK 0x5427 /* BSD compatibility */
91#define TIOCCBRK 0x5428 /* BSD compatibility */
92#define TIOCGSID 0x5429 /* Return the session ID of FD */
93#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
94#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
95#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
96#define TIOCSIG _IOW('T',0x36, int) /* Generate signal on Pty slave */
97#define TIOCVHANGUP 0x5437
98
99#define TIOCSERCONFIG 0x5453
100#define TIOCSERGWILD 0x5454
101#define TIOCSERSWILD 0x5455
102#define TIOCGLCKTRMIOS 0x5456
103#define TIOCSLCKTRMIOS 0x5457
104#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
105#define TIOCSERGETLSR 0x5459 /* Get line status register */
106 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
107# define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
108#define TIOCSERGETMULTI 0x545A /* Get multiport config */
109#define TIOCSERSETMULTI 0x545B /* Set multiport config */
110
111#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
112#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
113
114#endif /* _ASM_ALPHA_IOCTLS_H */
diff --git a/arch/alpha/include/asm/ipcbuf.h b/arch/alpha/include/asm/ipcbuf.h
new file mode 100644
index 00000000000..d9c0e1a5070
--- /dev/null
+++ b/arch/alpha/include/asm/ipcbuf.h
@@ -0,0 +1,28 @@
1#ifndef _ALPHA_IPCBUF_H
2#define _ALPHA_IPCBUF_H
3
4/*
5 * The ipc64_perm structure for alpha architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space is left for:
10 * - 32-bit seq
11 * - 2 miscellaneous 64-bit values
12 */
13
14struct ipc64_perm
15{
16 __kernel_key_t key;
17 __kernel_uid_t uid;
18 __kernel_gid_t gid;
19 __kernel_uid_t cuid;
20 __kernel_gid_t cgid;
21 __kernel_mode_t mode;
22 unsigned short seq;
23 unsigned short __pad1;
24 unsigned long __unused1;
25 unsigned long __unused2;
26};
27
28#endif /* _ALPHA_IPCBUF_H */
diff --git a/arch/alpha/include/asm/mman.h b/arch/alpha/include/asm/mman.h
new file mode 100644
index 00000000000..72db984f878
--- /dev/null
+++ b/arch/alpha/include/asm/mman.h
@@ -0,0 +1,62 @@
1#ifndef __ALPHA_MMAN_H__
2#define __ALPHA_MMAN_H__
3
4#define PROT_READ 0x1 /* page can be read */
5#define PROT_WRITE 0x2 /* page can be written */
6#define PROT_EXEC 0x4 /* page can be executed */
7#define PROT_SEM 0x8 /* page may be used for atomic ops */
8#define PROT_NONE 0x0 /* page can not be accessed */
9#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
10#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
11
12#define MAP_SHARED 0x01 /* Share changes */
13#define MAP_PRIVATE 0x02 /* Changes are private */
14#define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */
15#define MAP_FIXED 0x100 /* Interpret addr exactly */
16#define MAP_ANONYMOUS 0x10 /* don't use a file */
17
18/* not used by linux, but here to make sure we don't clash with OSF/1 defines */
19#define _MAP_HASSEMAPHORE 0x0200
20#define _MAP_INHERIT 0x0400
21#define _MAP_UNALIGNED 0x0800
22
23/* These are linux-specific */
24#define MAP_GROWSDOWN 0x01000 /* stack-like segment */
25#define MAP_DENYWRITE 0x02000 /* ETXTBSY */
26#define MAP_EXECUTABLE 0x04000 /* mark it as an executable */
27#define MAP_LOCKED 0x08000 /* lock the mapping */
28#define MAP_NORESERVE 0x10000 /* don't check for reservations */
29#define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */
30#define MAP_NONBLOCK 0x40000 /* do not block on IO */
31#define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */
32#define MAP_HUGETLB 0x100000 /* create a huge page mapping */
33
34#define MS_ASYNC 1 /* sync memory asynchronously */
35#define MS_SYNC 2 /* synchronous memory sync */
36#define MS_INVALIDATE 4 /* invalidate the caches */
37
38#define MCL_CURRENT 8192 /* lock all currently mapped pages */
39#define MCL_FUTURE 16384 /* lock all additions to address space */
40
41#define MADV_NORMAL 0 /* no further special treatment */
42#define MADV_RANDOM 1 /* expect random page references */
43#define MADV_SEQUENTIAL 2 /* expect sequential page references */
44#define MADV_WILLNEED 3 /* will need these pages */
45#define MADV_SPACEAVAIL 5 /* ensure resources are available */
46#define MADV_DONTNEED 6 /* don't need these pages */
47
48/* common/generic parameters */
49#define MADV_REMOVE 9 /* remove these pages & resources */
50#define MADV_DONTFORK 10 /* don't inherit across fork */
51#define MADV_DOFORK 11 /* do inherit across fork */
52
53#define MADV_MERGEABLE 12 /* KSM may merge identical pages */
54#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */
55
56#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */
57#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */
58
59/* compatibility flags */
60#define MAP_FILE 0
61
62#endif /* __ALPHA_MMAN_H__ */
diff --git a/arch/alpha/include/asm/msgbuf.h b/arch/alpha/include/asm/msgbuf.h
new file mode 100644
index 00000000000..98496501a2b
--- /dev/null
+++ b/arch/alpha/include/asm/msgbuf.h
@@ -0,0 +1,27 @@
1#ifndef _ALPHA_MSGBUF_H
2#define _ALPHA_MSGBUF_H
3
4/*
5 * The msqid64_ds structure for alpha architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space is left for:
10 * - 2 miscellaneous 64-bit values
11 */
12
13struct msqid64_ds {
14 struct ipc64_perm msg_perm;
15 __kernel_time_t msg_stime; /* last msgsnd time */
16 __kernel_time_t msg_rtime; /* last msgrcv time */
17 __kernel_time_t msg_ctime; /* last change time */
18 unsigned long msg_cbytes; /* current number of bytes on queue */
19 unsigned long msg_qnum; /* number of messages in queue */
20 unsigned long msg_qbytes; /* max number of bytes on queue */
21 __kernel_pid_t msg_lspid; /* pid of last msgsnd */
22 __kernel_pid_t msg_lrpid; /* last receive pid */
23 unsigned long __unused1;
24 unsigned long __unused2;
25};
26
27#endif /* _ALPHA_MSGBUF_H */
diff --git a/arch/alpha/include/asm/poll.h b/arch/alpha/include/asm/poll.h
new file mode 100644
index 00000000000..c98509d3149
--- /dev/null
+++ b/arch/alpha/include/asm/poll.h
@@ -0,0 +1 @@
#include <asm-generic/poll.h>
diff --git a/arch/alpha/include/asm/posix_types.h b/arch/alpha/include/asm/posix_types.h
new file mode 100644
index 00000000000..db167413300
--- /dev/null
+++ b/arch/alpha/include/asm/posix_types.h
@@ -0,0 +1,123 @@
1#ifndef _ALPHA_POSIX_TYPES_H
2#define _ALPHA_POSIX_TYPES_H
3
4/*
5 * This file is generally used by user-level software, so you need to
6 * be a little careful about namespace pollution etc. Also, we cannot
7 * assume GCC is being used.
8 */
9
10typedef unsigned int __kernel_ino_t;
11typedef unsigned int __kernel_mode_t;
12typedef unsigned int __kernel_nlink_t;
13typedef long __kernel_off_t;
14typedef long long __kernel_loff_t;
15typedef int __kernel_pid_t;
16typedef int __kernel_ipc_pid_t;
17typedef unsigned int __kernel_uid_t;
18typedef unsigned int __kernel_gid_t;
19typedef unsigned long __kernel_size_t;
20typedef long __kernel_ssize_t;
21typedef long __kernel_ptrdiff_t;
22typedef long __kernel_time_t;
23typedef long __kernel_suseconds_t;
24typedef long __kernel_clock_t;
25typedef int __kernel_daddr_t;
26typedef char * __kernel_caddr_t;
27typedef unsigned long __kernel_sigset_t; /* at least 32 bits */
28typedef unsigned short __kernel_uid16_t;
29typedef unsigned short __kernel_gid16_t;
30typedef int __kernel_clockid_t;
31typedef int __kernel_timer_t;
32
33typedef struct {
34 int val[2];
35} __kernel_fsid_t;
36
37typedef __kernel_uid_t __kernel_old_uid_t;
38typedef __kernel_gid_t __kernel_old_gid_t;
39typedef __kernel_uid_t __kernel_uid32_t;
40typedef __kernel_gid_t __kernel_gid32_t;
41
42typedef unsigned int __kernel_old_dev_t;
43
44#ifdef __KERNEL__
45
46#ifndef __GNUC__
47
48#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
49#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
50#define __FD_ISSET(d, set) (((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
51#define __FD_ZERO(set) \
52 ((void) memset ((void *) (set), 0, sizeof (__kernel_fd_set)))
53
54#else /* __GNUC__ */
55
56/* With GNU C, use inline functions instead so args are evaluated only once: */
57
58#undef __FD_SET
59static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
60{
61 unsigned long _tmp = fd / __NFDBITS;
62 unsigned long _rem = fd % __NFDBITS;
63 fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
64}
65
66#undef __FD_CLR
67static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
68{
69 unsigned long _tmp = fd / __NFDBITS;
70 unsigned long _rem = fd % __NFDBITS;
71 fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
72}
73
74#undef __FD_ISSET
75static __inline__ int __FD_ISSET(unsigned long fd, const __kernel_fd_set *p)
76{
77 unsigned long _tmp = fd / __NFDBITS;
78 unsigned long _rem = fd % __NFDBITS;
79 return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
80}
81
82/*
83 * This will unroll the loop for the normal constant case (8 ints,
84 * for a 256-bit fd_set)
85 */
86#undef __FD_ZERO
87static __inline__ void __FD_ZERO(__kernel_fd_set *p)
88{
89 unsigned long *tmp = p->fds_bits;
90 int i;
91
92 if (__builtin_constant_p(__FDSET_LONGS)) {
93 switch (__FDSET_LONGS) {
94 case 16:
95 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
96 tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
97 tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
98 tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
99 return;
100
101 case 8:
102 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
103 tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
104 return;
105
106 case 4:
107 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
108 return;
109 }
110 }
111 i = __FDSET_LONGS;
112 while (i) {
113 i--;
114 *tmp = 0;
115 tmp++;
116 }
117}
118
119#endif /* __GNUC__ */
120
121#endif /* __KERNEL__ */
122
123#endif /* _ALPHA_POSIX_TYPES_H */
diff --git a/arch/alpha/include/asm/reg.h b/arch/alpha/include/asm/reg.h
new file mode 100644
index 00000000000..86ff916fb06
--- /dev/null
+++ b/arch/alpha/include/asm/reg.h
@@ -0,0 +1,52 @@
1#ifndef __reg_h__
2#define __reg_h__
3
4/*
5 * Exception frame offsets.
6 */
7#define EF_V0 0
8#define EF_T0 1
9#define EF_T1 2
10#define EF_T2 3
11#define EF_T3 4
12#define EF_T4 5
13#define EF_T5 6
14#define EF_T6 7
15#define EF_T7 8
16#define EF_S0 9
17#define EF_S1 10
18#define EF_S2 11
19#define EF_S3 12
20#define EF_S4 13
21#define EF_S5 14
22#define EF_S6 15
23#define EF_A3 16
24#define EF_A4 17
25#define EF_A5 18
26#define EF_T8 19
27#define EF_T9 20
28#define EF_T10 21
29#define EF_T11 22
30#define EF_RA 23
31#define EF_T12 24
32#define EF_AT 25
33#define EF_SP 26
34#define EF_PS 27
35#define EF_PC 28
36#define EF_GP 29
37#define EF_A0 30
38#define EF_A1 31
39#define EF_A2 32
40
41#define EF_SIZE (33*8)
42#define HWEF_SIZE (6*8) /* size of PAL frame (PS-A2) */
43
44#define EF_SSIZE (EF_SIZE - HWEF_SIZE)
45
46/*
47 * Map register number into core file offset.
48 */
49#define CORE_REG(reg, ubase) \
50 (((unsigned long *)((unsigned long)(ubase)))[reg])
51
52#endif /* __reg_h__ */
diff --git a/arch/alpha/include/asm/regdef.h b/arch/alpha/include/asm/regdef.h
new file mode 100644
index 00000000000..142df9c4f8b
--- /dev/null
+++ b/arch/alpha/include/asm/regdef.h
@@ -0,0 +1,44 @@
1#ifndef __alpha_regdef_h__
2#define __alpha_regdef_h__
3
4#define v0 $0 /* function return value */
5
6#define t0 $1 /* temporary registers (caller-saved) */
7#define t1 $2
8#define t2 $3
9#define t3 $4
10#define t4 $5
11#define t5 $6
12#define t6 $7
13#define t7 $8
14
15#define s0 $9 /* saved-registers (callee-saved registers) */
16#define s1 $10
17#define s2 $11
18#define s3 $12
19#define s4 $13
20#define s5 $14
21#define s6 $15
22#define fp s6 /* frame-pointer (s6 in frame-less procedures) */
23
24#define a0 $16 /* argument registers (caller-saved) */
25#define a1 $17
26#define a2 $18
27#define a3 $19
28#define a4 $20
29#define a5 $21
30
31#define t8 $22 /* more temps (caller-saved) */
32#define t9 $23
33#define t10 $24
34#define t11 $25
35#define ra $26 /* return address register */
36#define t12 $27
37
38#define pv t12 /* procedure-variable register */
39#define AT $at /* assembler temporary */
40#define gp $29 /* global pointer */
41#define sp $30 /* stack pointer */
42#define zero $31 /* reads as zero, writes are noops */
43
44#endif /* __alpha_regdef_h__ */
diff --git a/arch/alpha/include/asm/resource.h b/arch/alpha/include/asm/resource.h
new file mode 100644
index 00000000000..c10874ff597
--- /dev/null
+++ b/arch/alpha/include/asm/resource.h
@@ -0,0 +1,22 @@
1#ifndef _ALPHA_RESOURCE_H
2#define _ALPHA_RESOURCE_H
3
4/*
5 * Alpha/Linux-specific ordering of these four resource limit IDs,
6 * the rest comes from the generic header:
7 */
8#define RLIMIT_NOFILE 6 /* max number of open files */
9#define RLIMIT_AS 7 /* address space limit */
10#define RLIMIT_NPROC 8 /* max number of processes */
11#define RLIMIT_MEMLOCK 9 /* max locked-in-memory address space */
12
13/*
14 * SuS says limits have to be unsigned. Fine, it's unsigned, but
15 * we retain the old value for compatibility, especially with DU.
16 * When you run into the 2^63 barrier, you call me.
17 */
18#define RLIM_INFINITY 0x7ffffffffffffffful
19
20#include <asm-generic/resource.h>
21
22#endif /* _ALPHA_RESOURCE_H */
diff --git a/arch/alpha/include/asm/sembuf.h b/arch/alpha/include/asm/sembuf.h
new file mode 100644
index 00000000000..7b38b153478
--- /dev/null
+++ b/arch/alpha/include/asm/sembuf.h
@@ -0,0 +1,22 @@
1#ifndef _ALPHA_SEMBUF_H
2#define _ALPHA_SEMBUF_H
3
4/*
5 * The semid64_ds structure for alpha architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space is left for:
10 * - 2 miscellaneous 64-bit values
11 */
12
13struct semid64_ds {
14 struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
15 __kernel_time_t sem_otime; /* last semop time */
16 __kernel_time_t sem_ctime; /* last change time */
17 unsigned long sem_nsems; /* no. of semaphores in array */
18 unsigned long __unused1;
19 unsigned long __unused2;
20};
21
22#endif /* _ALPHA_SEMBUF_H */
diff --git a/arch/alpha/include/asm/setup.h b/arch/alpha/include/asm/setup.h
new file mode 100644
index 00000000000..2e023a4aa31
--- /dev/null
+++ b/arch/alpha/include/asm/setup.h
@@ -0,0 +1,6 @@
1#ifndef __ALPHA_SETUP_H
2#define __ALPHA_SETUP_H
3
4#define COMMAND_LINE_SIZE 256
5
6#endif
diff --git a/arch/alpha/include/asm/shmbuf.h b/arch/alpha/include/asm/shmbuf.h
new file mode 100644
index 00000000000..37ee84f0508
--- /dev/null
+++ b/arch/alpha/include/asm/shmbuf.h
@@ -0,0 +1,38 @@
1#ifndef _ALPHA_SHMBUF_H
2#define _ALPHA_SHMBUF_H
3
4/*
5 * The shmid64_ds structure for alpha architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space is left for:
10 * - 2 miscellaneous 64-bit values
11 */
12
13struct shmid64_ds {
14 struct ipc64_perm shm_perm; /* operation perms */
15 size_t shm_segsz; /* size of segment (bytes) */
16 __kernel_time_t shm_atime; /* last attach time */
17 __kernel_time_t shm_dtime; /* last detach time */
18 __kernel_time_t shm_ctime; /* last change time */
19 __kernel_pid_t shm_cpid; /* pid of creator */
20 __kernel_pid_t shm_lpid; /* pid of last operator */
21 unsigned long shm_nattch; /* no. of current attaches */
22 unsigned long __unused1;
23 unsigned long __unused2;
24};
25
26struct shminfo64 {
27 unsigned long shmmax;
28 unsigned long shmmin;
29 unsigned long shmmni;
30 unsigned long shmseg;
31 unsigned long shmall;
32 unsigned long __unused1;
33 unsigned long __unused2;
34 unsigned long __unused3;
35 unsigned long __unused4;
36};
37
38#endif /* _ALPHA_SHMBUF_H */
diff --git a/arch/alpha/include/asm/sigcontext.h b/arch/alpha/include/asm/sigcontext.h
new file mode 100644
index 00000000000..323cdb02619
--- /dev/null
+++ b/arch/alpha/include/asm/sigcontext.h
@@ -0,0 +1,34 @@
1#ifndef _ASMAXP_SIGCONTEXT_H
2#define _ASMAXP_SIGCONTEXT_H
3
4struct sigcontext {
5 /*
6 * What should we have here? I'd probably better use the same
7 * stack layout as OSF/1, just in case we ever want to try
8 * running their binaries..
9 *
10 * This is the basic layout, but I don't know if we'll ever
11 * actually fill in all the values..
12 */
13 long sc_onstack;
14 long sc_mask;
15 long sc_pc;
16 long sc_ps;
17 long sc_regs[32];
18 long sc_ownedfp;
19 long sc_fpregs[32];
20 unsigned long sc_fpcr;
21 unsigned long sc_fp_control;
22 unsigned long sc_reserved1, sc_reserved2;
23 unsigned long sc_ssize;
24 char * sc_sbase;
25 unsigned long sc_traparg_a0;
26 unsigned long sc_traparg_a1;
27 unsigned long sc_traparg_a2;
28 unsigned long sc_fp_trap_pc;
29 unsigned long sc_fp_trigger_sum;
30 unsigned long sc_fp_trigger_inst;
31};
32
33
34#endif
diff --git a/arch/alpha/include/asm/siginfo.h b/arch/alpha/include/asm/siginfo.h
new file mode 100644
index 00000000000..9822362a842
--- /dev/null
+++ b/arch/alpha/include/asm/siginfo.h
@@ -0,0 +1,9 @@
1#ifndef _ALPHA_SIGINFO_H
2#define _ALPHA_SIGINFO_H
3
4#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
5#define __ARCH_SI_TRAPNO
6
7#include <asm-generic/siginfo.h>
8
9#endif
diff --git a/arch/alpha/include/asm/sockios.h b/arch/alpha/include/asm/sockios.h
new file mode 100644
index 00000000000..7932c7ab4a4
--- /dev/null
+++ b/arch/alpha/include/asm/sockios.h
@@ -0,0 +1,16 @@
1#ifndef _ASM_ALPHA_SOCKIOS_H
2#define _ASM_ALPHA_SOCKIOS_H
3
4/* Socket-level I/O control calls. */
5
6#define FIOGETOWN _IOR('f', 123, int)
7#define FIOSETOWN _IOW('f', 124, int)
8
9#define SIOCATMARK _IOR('s', 7, int)
10#define SIOCSPGRP _IOW('s', 8, pid_t)
11#define SIOCGPGRP _IOR('s', 9, pid_t)
12
13#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
14#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
15
16#endif /* _ASM_ALPHA_SOCKIOS_H */
diff --git a/arch/alpha/include/asm/stat.h b/arch/alpha/include/asm/stat.h
new file mode 100644
index 00000000000..07ad3e6b3f3
--- /dev/null
+++ b/arch/alpha/include/asm/stat.h
@@ -0,0 +1,48 @@
1#ifndef _ALPHA_STAT_H
2#define _ALPHA_STAT_H
3
4struct stat {
5 unsigned int st_dev;
6 unsigned int st_ino;
7 unsigned int st_mode;
8 unsigned int st_nlink;
9 unsigned int st_uid;
10 unsigned int st_gid;
11 unsigned int st_rdev;
12 long st_size;
13 unsigned long st_atime;
14 unsigned long st_mtime;
15 unsigned long st_ctime;
16 unsigned int st_blksize;
17 unsigned int st_blocks;
18 unsigned int st_flags;
19 unsigned int st_gen;
20};
21
22/* The stat64 structure increases the size of dev_t, blkcnt_t, adds
23 nanosecond resolution times, and padding for expansion. */
24
25struct stat64 {
26 unsigned long st_dev;
27 unsigned long st_ino;
28 unsigned long st_rdev;
29 long st_size;
30 unsigned long st_blocks;
31
32 unsigned int st_mode;
33 unsigned int st_uid;
34 unsigned int st_gid;
35 unsigned int st_blksize;
36 unsigned int st_nlink;
37 unsigned int __pad0;
38
39 unsigned long st_atime;
40 unsigned long st_atime_nsec;
41 unsigned long st_mtime;
42 unsigned long st_mtime_nsec;
43 unsigned long st_ctime;
44 unsigned long st_ctime_nsec;
45 long __unused[3];
46};
47
48#endif
diff --git a/arch/alpha/include/asm/statfs.h b/arch/alpha/include/asm/statfs.h
new file mode 100644
index 00000000000..ccd2e186bfd
--- /dev/null
+++ b/arch/alpha/include/asm/statfs.h
@@ -0,0 +1,12 @@
1#ifndef _ALPHA_STATFS_H
2#define _ALPHA_STATFS_H
3
4#include <linux/types.h>
5
6/* Alpha is the only 64-bit platform with 32-bit statfs. And doesn't
7 even seem to implement statfs64 */
8#define __statfs_word __u32
9
10#include <asm-generic/statfs.h>
11
12#endif
diff --git a/arch/alpha/include/asm/swab.h b/arch/alpha/include/asm/swab.h
new file mode 100644
index 00000000000..4d682b16c7c
--- /dev/null
+++ b/arch/alpha/include/asm/swab.h
@@ -0,0 +1,42 @@
1#ifndef _ALPHA_SWAB_H
2#define _ALPHA_SWAB_H
3
4#include <linux/types.h>
5#include <linux/compiler.h>
6#include <asm/compiler.h>
7
8#ifdef __GNUC__
9
10static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
11{
12 /*
13 * Unfortunately, we can't use the 6 instruction sequence
14 * on ev6 since the latency of the UNPKBW is 3, which is
15 * pretty hard to hide. Just in case a future implementation
16 * has a lower latency, here's the sequence (also by Mike Burrows)
17 *
18 * UNPKBW a0, v0 v0: 00AA00BB00CC00DD
19 * SLL v0, 24, a0 a0: BB00CC00DD000000
20 * BIS v0, a0, a0 a0: BBAACCBBDDCC00DD
21 * EXTWL a0, 6, v0 v0: 000000000000BBAA
22 * ZAP a0, 0xf3, a0 a0: 00000000DDCC0000
23 * ADDL a0, v0, v0 v0: ssssssssDDCCBBAA
24 */
25
26 __u64 t0, t1, t2, t3;
27
28 t0 = __kernel_inslh(x, 7); /* t0 : 0000000000AABBCC */
29 t1 = __kernel_inswl(x, 3); /* t1 : 000000CCDD000000 */
30 t1 |= t0; /* t1 : 000000CCDDAABBCC */
31 t2 = t1 >> 16; /* t2 : 0000000000CCDDAA */
32 t0 = t1 & 0xFF00FF00; /* t0 : 00000000DD00BB00 */
33 t3 = t2 & 0x00FF00FF; /* t3 : 0000000000CC00AA */
34 t1 = t0 + t3; /* t1 : ssssssssDDCCBBAA */
35
36 return t1;
37}
38#define __arch_swab32 __arch_swab32
39
40#endif /* __GNUC__ */
41
42#endif /* _ALPHA_SWAB_H */
diff --git a/arch/alpha/include/asm/sysinfo.h b/arch/alpha/include/asm/sysinfo.h
new file mode 100644
index 00000000000..e77d77cd07b
--- /dev/null
+++ b/arch/alpha/include/asm/sysinfo.h
@@ -0,0 +1,30 @@
1/*
2 * include/asm-alpha/sysinfo.h
3 */
4
5#ifndef __ASM_ALPHA_SYSINFO_H
6#define __ASM_ALPHA_SYSINFO_H
7
8/* This defines the subset of the OSF/1 getsysinfo/setsysinfo calls
9 that we support. */
10
11#define GSI_UACPROC 8
12#define GSI_IEEE_FP_CONTROL 45
13#define GSI_IEEE_STATE_AT_SIGNAL 46
14#define GSI_PROC_TYPE 60
15#define GSI_GET_HWRPB 101
16
17#define SSI_NVPAIRS 1
18#define SSI_IEEE_FP_CONTROL 14
19#define SSI_IEEE_STATE_AT_SIGNAL 15
20#define SSI_IEEE_IGNORE_STATE_AT_SIGNAL 16
21#define SSI_IEEE_RAISE_EXCEPTION 1001 /* linux specific */
22
23#define SSIN_UACPROC 6
24
25#define UAC_BITMASK 7
26#define UAC_NOPRINT 1
27#define UAC_NOFIX 2
28#define UAC_SIGBUS 4
29
30#endif /* __ASM_ALPHA_SYSINFO_H */
diff --git a/arch/alpha/include/asm/system.h b/arch/alpha/include/asm/system.h
new file mode 100644
index 00000000000..9f78e693463
--- /dev/null
+++ b/arch/alpha/include/asm/system.h
@@ -0,0 +1,354 @@
1#ifndef __ALPHA_SYSTEM_H
2#define __ALPHA_SYSTEM_H
3
4#include <asm/pal.h>
5#include <asm/page.h>
6#include <asm/barrier.h>
7
8/*
9 * System defines.. Note that this is included both from .c and .S
10 * files, so it does only defines, not any C code.
11 */
12
13/*
14 * We leave one page for the initial stack page, and one page for
15 * the initial process structure. Also, the console eats 3 MB for
16 * the initial bootloader (one of which we can reclaim later).
17 */
18#define BOOT_PCB 0x20000000
19#define BOOT_ADDR 0x20000000
20/* Remove when official MILO sources have ELF support: */
21#define BOOT_SIZE (16*1024)
22
23#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
24#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */
25#else
26#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */
27#endif
28
29#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS)
30#define SWAPPER_PGD KERNEL_START
31#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
32#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
33#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
34#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
35
36#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
37
38/*
39 * This is setup by the secondary bootstrap loader. Because
40 * the zero page is zeroed out as soon as the vm system is
41 * initialized, we need to copy things out into a more permanent
42 * place.
43 */
44#define PARAM ZERO_PGE
45#define COMMAND_LINE ((char*)(PARAM + 0x0000))
46#define INITRD_START (*(unsigned long *) (PARAM+0x100))
47#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108))
48
49#ifndef __ASSEMBLY__
50#include <linux/kernel.h>
51#define AT_VECTOR_SIZE_ARCH 4 /* entries in ARCH_DLINFO */
52
53/*
54 * This is the logout header that should be common to all platforms
55 * (assuming they are running OSF/1 PALcode, I guess).
56 */
57struct el_common {
58 unsigned int size; /* size in bytes of logout area */
59 unsigned int sbz1 : 30; /* should be zero */
60 unsigned int err2 : 1; /* second error */
61 unsigned int retry : 1; /* retry flag */
62 unsigned int proc_offset; /* processor-specific offset */
63 unsigned int sys_offset; /* system-specific offset */
64 unsigned int code; /* machine check code */
65 unsigned int frame_rev; /* frame revision */
66};
67
68/* Machine Check Frame for uncorrectable errors (Large format)
69 * --- This is used to log uncorrectable errors such as
70 * double bit ECC errors.
71 * --- These errors are detected by both processor and systems.
72 */
73struct el_common_EV5_uncorrectable_mcheck {
74 unsigned long shadow[8]; /* Shadow reg. 8-14, 25 */
75 unsigned long paltemp[24]; /* PAL TEMP REGS. */
76 unsigned long exc_addr; /* Address of excepting instruction*/
77 unsigned long exc_sum; /* Summary of arithmetic traps. */
78 unsigned long exc_mask; /* Exception mask (from exc_sum). */
79 unsigned long pal_base; /* Base address for PALcode. */
80 unsigned long isr; /* Interrupt Status Reg. */
81 unsigned long icsr; /* CURRENT SETUP OF EV5 IBOX */
82 unsigned long ic_perr_stat; /* I-CACHE Reg. <11> set Data parity
83 <12> set TAG parity*/
84 unsigned long dc_perr_stat; /* D-CACHE error Reg. Bits set to 1:
85 <2> Data error in bank 0
86 <3> Data error in bank 1
87 <4> Tag error in bank 0
88 <5> Tag error in bank 1 */
89 unsigned long va; /* Effective VA of fault or miss. */
90 unsigned long mm_stat; /* Holds the reason for D-stream
91 fault or D-cache parity errors */
92 unsigned long sc_addr; /* Address that was being accessed
93 when EV5 detected Secondary cache
94 failure. */
95 unsigned long sc_stat; /* Helps determine if the error was
96 TAG/Data parity(Secondary Cache)*/
97 unsigned long bc_tag_addr; /* Contents of EV5 BC_TAG_ADDR */
98 unsigned long ei_addr; /* Physical address of any transfer
99 that is logged in EV5 EI_STAT */
100 unsigned long fill_syndrome; /* For correcting ECC errors. */
101 unsigned long ei_stat; /* Helps identify reason of any
102 processor uncorrectable error
103 at its external interface. */
104 unsigned long ld_lock; /* Contents of EV5 LD_LOCK register*/
105};
106
107struct el_common_EV6_mcheck {
108 unsigned int FrameSize; /* Bytes, including this field */
109 unsigned int FrameFlags; /* <31> = Retry, <30> = Second Error */
110 unsigned int CpuOffset; /* Offset to CPU-specific info */
111 unsigned int SystemOffset; /* Offset to system-specific info */
112 unsigned int MCHK_Code;
113 unsigned int MCHK_Frame_Rev;
114 unsigned long I_STAT; /* EV6 Internal Processor Registers */
115 unsigned long DC_STAT; /* (See the 21264 Spec) */
116 unsigned long C_ADDR;
117 unsigned long DC1_SYNDROME;
118 unsigned long DC0_SYNDROME;
119 unsigned long C_STAT;
120 unsigned long C_STS;
121 unsigned long MM_STAT;
122 unsigned long EXC_ADDR;
123 unsigned long IER_CM;
124 unsigned long ISUM;
125 unsigned long RESERVED0;
126 unsigned long PAL_BASE;
127 unsigned long I_CTL;
128 unsigned long PCTX;
129};
130
131extern void halt(void) __attribute__((noreturn));
132#define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt))
133
134#define switch_to(P,N,L) \
135 do { \
136 (L) = alpha_switch_to(virt_to_phys(&task_thread_info(N)->pcb), (P)); \
137 check_mmu_context(); \
138 } while (0)
139
140struct task_struct;
141extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct*);
142
143#define imb() \
144__asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory")
145
146#define draina() \
147__asm__ __volatile__ ("call_pal %0 #draina" : : "i" (PAL_draina) : "memory")
148
149enum implver_enum {
150 IMPLVER_EV4,
151 IMPLVER_EV5,
152 IMPLVER_EV6
153};
154
155#ifdef CONFIG_ALPHA_GENERIC
156#define implver() \
157({ unsigned long __implver; \
158 __asm__ ("implver %0" : "=r"(__implver)); \
159 (enum implver_enum) __implver; })
160#else
161/* Try to eliminate some dead code. */
162#ifdef CONFIG_ALPHA_EV4
163#define implver() IMPLVER_EV4
164#endif
165#ifdef CONFIG_ALPHA_EV5
166#define implver() IMPLVER_EV5
167#endif
168#if defined(CONFIG_ALPHA_EV6)
169#define implver() IMPLVER_EV6
170#endif
171#endif
172
173enum amask_enum {
174 AMASK_BWX = (1UL << 0),
175 AMASK_FIX = (1UL << 1),
176 AMASK_CIX = (1UL << 2),
177 AMASK_MAX = (1UL << 8),
178 AMASK_PRECISE_TRAP = (1UL << 9),
179};
180
181#define amask(mask) \
182({ unsigned long __amask, __input = (mask); \
183 __asm__ ("amask %1,%0" : "=r"(__amask) : "rI"(__input)); \
184 __amask; })
185
186#define __CALL_PAL_R0(NAME, TYPE) \
187extern inline TYPE NAME(void) \
188{ \
189 register TYPE __r0 __asm__("$0"); \
190 __asm__ __volatile__( \
191 "call_pal %1 # " #NAME \
192 :"=r" (__r0) \
193 :"i" (PAL_ ## NAME) \
194 :"$1", "$16", "$22", "$23", "$24", "$25"); \
195 return __r0; \
196}
197
198#define __CALL_PAL_W1(NAME, TYPE0) \
199extern inline void NAME(TYPE0 arg0) \
200{ \
201 register TYPE0 __r16 __asm__("$16") = arg0; \
202 __asm__ __volatile__( \
203 "call_pal %1 # "#NAME \
204 : "=r"(__r16) \
205 : "i"(PAL_ ## NAME), "0"(__r16) \
206 : "$1", "$22", "$23", "$24", "$25"); \
207}
208
209#define __CALL_PAL_W2(NAME, TYPE0, TYPE1) \
210extern inline void NAME(TYPE0 arg0, TYPE1 arg1) \
211{ \
212 register TYPE0 __r16 __asm__("$16") = arg0; \
213 register TYPE1 __r17 __asm__("$17") = arg1; \
214 __asm__ __volatile__( \
215 "call_pal %2 # "#NAME \
216 : "=r"(__r16), "=r"(__r17) \
217 : "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17) \
218 : "$1", "$22", "$23", "$24", "$25"); \
219}
220
221#define __CALL_PAL_RW1(NAME, RTYPE, TYPE0) \
222extern inline RTYPE NAME(TYPE0 arg0) \
223{ \
224 register RTYPE __r0 __asm__("$0"); \
225 register TYPE0 __r16 __asm__("$16") = arg0; \
226 __asm__ __volatile__( \
227 "call_pal %2 # "#NAME \
228 : "=r"(__r16), "=r"(__r0) \
229 : "i"(PAL_ ## NAME), "0"(__r16) \
230 : "$1", "$22", "$23", "$24", "$25"); \
231 return __r0; \
232}
233
234#define __CALL_PAL_RW2(NAME, RTYPE, TYPE0, TYPE1) \
235extern inline RTYPE NAME(TYPE0 arg0, TYPE1 arg1) \
236{ \
237 register RTYPE __r0 __asm__("$0"); \
238 register TYPE0 __r16 __asm__("$16") = arg0; \
239 register TYPE1 __r17 __asm__("$17") = arg1; \
240 __asm__ __volatile__( \
241 "call_pal %3 # "#NAME \
242 : "=r"(__r16), "=r"(__r17), "=r"(__r0) \
243 : "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17) \
244 : "$1", "$22", "$23", "$24", "$25"); \
245 return __r0; \
246}
247
248__CALL_PAL_W1(cflush, unsigned long);
249__CALL_PAL_R0(rdmces, unsigned long);
250__CALL_PAL_R0(rdps, unsigned long);
251__CALL_PAL_R0(rdusp, unsigned long);
252__CALL_PAL_RW1(swpipl, unsigned long, unsigned long);
253__CALL_PAL_R0(whami, unsigned long);
254__CALL_PAL_W2(wrent, void*, unsigned long);
255__CALL_PAL_W1(wripir, unsigned long);
256__CALL_PAL_W1(wrkgp, unsigned long);
257__CALL_PAL_W1(wrmces, unsigned long);
258__CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long);
259__CALL_PAL_W1(wrusp, unsigned long);
260__CALL_PAL_W1(wrvptptr, unsigned long);
261
262/*
263 * TB routines..
264 */
265#define __tbi(nr,arg,arg1...) \
266({ \
267 register unsigned long __r16 __asm__("$16") = (nr); \
268 register unsigned long __r17 __asm__("$17"); arg; \
269 __asm__ __volatile__( \
270 "call_pal %3 #__tbi" \
271 :"=r" (__r16),"=r" (__r17) \
272 :"0" (__r16),"i" (PAL_tbi) ,##arg1 \
273 :"$0", "$1", "$22", "$23", "$24", "$25"); \
274})
275
276#define tbi(x,y) __tbi(x,__r17=(y),"1" (__r17))
277#define tbisi(x) __tbi(1,__r17=(x),"1" (__r17))
278#define tbisd(x) __tbi(2,__r17=(x),"1" (__r17))
279#define tbis(x) __tbi(3,__r17=(x),"1" (__r17))
280#define tbiap() __tbi(-1, /* no second argument */)
281#define tbia() __tbi(-2, /* no second argument */)
282
283/*
284 * Atomic exchange routines.
285 */
286
287#define __ASM__MB
288#define ____xchg(type, args...) __xchg ## type ## _local(args)
289#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
290#include <asm/xchg.h>
291
292#define xchg_local(ptr,x) \
293 ({ \
294 __typeof__(*(ptr)) _x_ = (x); \
295 (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \
296 sizeof(*(ptr))); \
297 })
298
299#define cmpxchg_local(ptr, o, n) \
300 ({ \
301 __typeof__(*(ptr)) _o_ = (o); \
302 __typeof__(*(ptr)) _n_ = (n); \
303 (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
304 (unsigned long)_n_, \
305 sizeof(*(ptr))); \
306 })
307
308#define cmpxchg64_local(ptr, o, n) \
309 ({ \
310 BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
311 cmpxchg_local((ptr), (o), (n)); \
312 })
313
314#ifdef CONFIG_SMP
315#undef __ASM__MB
316#define __ASM__MB "\tmb\n"
317#endif
318#undef ____xchg
319#undef ____cmpxchg
320#define ____xchg(type, args...) __xchg ##type(args)
321#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
322#include <asm/xchg.h>
323
324#define xchg(ptr,x) \
325 ({ \
326 __typeof__(*(ptr)) _x_ = (x); \
327 (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \
328 sizeof(*(ptr))); \
329 })
330
331#define cmpxchg(ptr, o, n) \
332 ({ \
333 __typeof__(*(ptr)) _o_ = (o); \
334 __typeof__(*(ptr)) _n_ = (n); \
335 (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
336 (unsigned long)_n_, sizeof(*(ptr)));\
337 })
338
339#define cmpxchg64(ptr, o, n) \
340 ({ \
341 BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
342 cmpxchg((ptr), (o), (n)); \
343 })
344
345#undef __ASM__MB
346#undef ____cmpxchg
347
348#define __HAVE_ARCH_CMPXCHG 1
349
350#endif /* __ASSEMBLY__ */
351
352#define arch_align_stack(x) (x)
353
354#endif
diff --git a/arch/alpha/include/asm/termbits.h b/arch/alpha/include/asm/termbits.h
new file mode 100644
index 00000000000..879dd358992
--- /dev/null
+++ b/arch/alpha/include/asm/termbits.h
@@ -0,0 +1,201 @@
1#ifndef _ALPHA_TERMBITS_H
2#define _ALPHA_TERMBITS_H
3
4#include <linux/posix_types.h>
5
6typedef unsigned char cc_t;
7typedef unsigned int speed_t;
8typedef unsigned int tcflag_t;
9
10/*
11 * termios type and macro definitions. Be careful about adding stuff
12 * to this file since it's used in GNU libc and there are strict rules
13 * concerning namespace pollution.
14 */
15
16#define NCCS 19
17struct termios {
18 tcflag_t c_iflag; /* input mode flags */
19 tcflag_t c_oflag; /* output mode flags */
20 tcflag_t c_cflag; /* control mode flags */
21 tcflag_t c_lflag; /* local mode flags */
22 cc_t c_cc[NCCS]; /* control characters */
23 cc_t c_line; /* line discipline (== c_cc[19]) */
24 speed_t c_ispeed; /* input speed */
25 speed_t c_ospeed; /* output speed */
26};
27
28/* Alpha has matching termios and ktermios */
29
30struct ktermios {
31 tcflag_t c_iflag; /* input mode flags */
32 tcflag_t c_oflag; /* output mode flags */
33 tcflag_t c_cflag; /* control mode flags */
34 tcflag_t c_lflag; /* local mode flags */
35 cc_t c_cc[NCCS]; /* control characters */
36 cc_t c_line; /* line discipline (== c_cc[19]) */
37 speed_t c_ispeed; /* input speed */
38 speed_t c_ospeed; /* output speed */
39};
40
41/* c_cc characters */
42#define VEOF 0
43#define VEOL 1
44#define VEOL2 2
45#define VERASE 3
46#define VWERASE 4
47#define VKILL 5
48#define VREPRINT 6
49#define VSWTC 7
50#define VINTR 8
51#define VQUIT 9
52#define VSUSP 10
53#define VSTART 12
54#define VSTOP 13
55#define VLNEXT 14
56#define VDISCARD 15
57#define VMIN 16
58#define VTIME 17
59
60/* c_iflag bits */
61#define IGNBRK 0000001
62#define BRKINT 0000002
63#define IGNPAR 0000004
64#define PARMRK 0000010
65#define INPCK 0000020
66#define ISTRIP 0000040
67#define INLCR 0000100
68#define IGNCR 0000200
69#define ICRNL 0000400
70#define IXON 0001000
71#define IXOFF 0002000
72#define IXANY 0004000
73#define IUCLC 0010000
74#define IMAXBEL 0020000
75#define IUTF8 0040000
76
77/* c_oflag bits */
78#define OPOST 0000001
79#define ONLCR 0000002
80#define OLCUC 0000004
81
82#define OCRNL 0000010
83#define ONOCR 0000020
84#define ONLRET 0000040
85
86#define OFILL 00000100
87#define OFDEL 00000200
88#define NLDLY 00001400
89#define NL0 00000000
90#define NL1 00000400
91#define NL2 00001000
92#define NL3 00001400
93#define TABDLY 00006000
94#define TAB0 00000000
95#define TAB1 00002000
96#define TAB2 00004000
97#define TAB3 00006000
98#define CRDLY 00030000
99#define CR0 00000000
100#define CR1 00010000
101#define CR2 00020000
102#define CR3 00030000
103#define FFDLY 00040000
104#define FF0 00000000
105#define FF1 00040000
106#define BSDLY 00100000
107#define BS0 00000000
108#define BS1 00100000
109#define VTDLY 00200000
110#define VT0 00000000
111#define VT1 00200000
112#define XTABS 01000000 /* Hmm.. Linux/i386 considers this part of TABDLY.. */
113
114/* c_cflag bit meaning */
115#define CBAUD 0000037
116#define B0 0000000 /* hang up */
117#define B50 0000001
118#define B75 0000002
119#define B110 0000003
120#define B134 0000004
121#define B150 0000005
122#define B200 0000006
123#define B300 0000007
124#define B600 0000010
125#define B1200 0000011
126#define B1800 0000012
127#define B2400 0000013
128#define B4800 0000014
129#define B9600 0000015
130#define B19200 0000016
131#define B38400 0000017
132#define EXTA B19200
133#define EXTB B38400
134#define CBAUDEX 0000000
135#define B57600 00020
136#define B115200 00021
137#define B230400 00022
138#define B460800 00023
139#define B500000 00024
140#define B576000 00025
141#define B921600 00026
142#define B1000000 00027
143#define B1152000 00030
144#define B1500000 00031
145#define B2000000 00032
146#define B2500000 00033
147#define B3000000 00034
148#define B3500000 00035
149#define B4000000 00036
150
151#define CSIZE 00001400
152#define CS5 00000000
153#define CS6 00000400
154#define CS7 00001000
155#define CS8 00001400
156
157#define CSTOPB 00002000
158#define CREAD 00004000
159#define PARENB 00010000
160#define PARODD 00020000
161#define HUPCL 00040000
162
163#define CLOCAL 00100000
164#define CMSPAR 010000000000 /* mark or space (stick) parity */
165#define CRTSCTS 020000000000 /* flow control */
166
167/* c_lflag bits */
168#define ISIG 0x00000080
169#define ICANON 0x00000100
170#define XCASE 0x00004000
171#define ECHO 0x00000008
172#define ECHOE 0x00000002
173#define ECHOK 0x00000004
174#define ECHONL 0x00000010
175#define NOFLSH 0x80000000
176#define TOSTOP 0x00400000
177#define ECHOCTL 0x00000040
178#define ECHOPRT 0x00000020
179#define ECHOKE 0x00000001
180#define FLUSHO 0x00800000
181#define PENDIN 0x20000000
182#define IEXTEN 0x00000400
183#define EXTPROC 0x10000000
184
185/* Values for the ACTION argument to `tcflow'. */
186#define TCOOFF 0
187#define TCOON 1
188#define TCIOFF 2
189#define TCION 3
190
191/* Values for the QUEUE_SELECTOR argument to `tcflush'. */
192#define TCIFLUSH 0
193#define TCOFLUSH 1
194#define TCIOFLUSH 2
195
196/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'. */
197#define TCSANOW 0
198#define TCSADRAIN 1
199#define TCSAFLUSH 2
200
201#endif /* _ALPHA_TERMBITS_H */
diff --git a/arch/alpha/kernel/init_task.c b/arch/alpha/kernel/init_task.c
new file mode 100644
index 00000000000..6f80ca4f976
--- /dev/null
+++ b/arch/alpha/kernel/init_task.c
@@ -0,0 +1,17 @@
1#include <linux/mm.h>
2#include <linux/module.h>
3#include <linux/sched.h>
4#include <linux/init.h>
5#include <linux/init_task.h>
6#include <linux/fs.h>
7#include <linux/mqueue.h>
8#include <asm/uaccess.h>
9
10
11static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
12static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
13struct task_struct init_task = INIT_TASK(init_task);
14EXPORT_SYMBOL(init_task);
15
16union thread_union init_thread_union __init_task_data =
17 { INIT_THREAD_INFO(init_task) };
diff --git a/arch/alpha/lib/ev6-strncpy_from_user.S b/arch/alpha/lib/ev6-strncpy_from_user.S
new file mode 100644
index 00000000000..d2e28178cac
--- /dev/null
+++ b/arch/alpha/lib/ev6-strncpy_from_user.S
@@ -0,0 +1,424 @@
1/*
2 * arch/alpha/lib/ev6-strncpy_from_user.S
3 * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
4 *
5 * Just like strncpy except in the return value:
6 *
7 * -EFAULT if an exception occurs before the terminator is copied.
8 * N if the buffer filled.
9 *
10 * Otherwise the length of the string is returned.
11 *
12 * Much of the information about 21264 scheduling/coding comes from:
13 * Compiler Writer's Guide for the Alpha 21264
14 * abbreviated as 'CWG' in other comments here
15 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
16 * Scheduling notation:
17 * E - either cluster
18 * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
19 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
20 * A bunch of instructions got moved and temp registers were changed
21 * to aid in scheduling. Control flow was also re-arranged to eliminate
22 * branches, and to provide longer code sequences to enable better scheduling.
23 * A total rewrite (using byte load/stores for start & tail sequences)
24 * is desirable, but very difficult to do without a from-scratch rewrite.
25 * Save that for the future.
26 */
27
28
29#include <asm/errno.h>
30#include <asm/regdef.h>
31
32
33/* Allow an exception for an insn; exit if we get one. */
34#define EX(x,y...) \
35 99: x,##y; \
36 .section __ex_table,"a"; \
37 .long 99b - .; \
38 lda $31, $exception-99b($0); \
39 .previous
40
41
42 .set noat
43 .set noreorder
44 .text
45
46 .globl __strncpy_from_user
47 .ent __strncpy_from_user
48 .frame $30, 0, $26
49 .prologue 0
50
51 .align 4
52__strncpy_from_user:
53 and a0, 7, t3 # E : find dest misalignment
54 beq a2, $zerolength # U :
55
56 /* Are source and destination co-aligned? */
57 mov a0, v0 # E : save the string start
58 xor a0, a1, t4 # E :
59 EX( ldq_u t1, 0(a1) ) # L : Latency=3 load first quadword
60 ldq_u t0, 0(a0) # L : load first (partial) aligned dest quadword
61
62 addq a2, t3, a2 # E : bias count by dest misalignment
63 subq a2, 1, a3 # E :
64 addq zero, 1, t10 # E :
65 and t4, 7, t4 # E : misalignment between the two
66
67 and a3, 7, t6 # E : number of tail bytes
68 sll t10, t6, t10 # E : t10 = bitmask of last count byte
69 bne t4, $unaligned # U :
70 lda t2, -1 # E : build a mask against false zero
71
72 /*
73 * We are co-aligned; take care of a partial first word.
74 * On entry to this basic block:
75 * t0 == the first destination word for masking back in
76 * t1 == the first source word.
77 */
78
79 srl a3, 3, a2 # E : a2 = loop counter = (count - 1)/8
80 addq a1, 8, a1 # E :
81 mskqh t2, a1, t2 # U : detection in the src word
82 nop
83
84 /* Create the 1st output word and detect 0's in the 1st input word. */
85 mskqh t1, a1, t3 # U :
86 mskql t0, a1, t0 # U : assemble the first output word
87 ornot t1, t2, t2 # E :
88 nop
89
90 cmpbge zero, t2, t8 # E : bits set iff null found
91 or t0, t3, t0 # E :
92 beq a2, $a_eoc # U :
93 bne t8, $a_eos # U : 2nd branch in a quad. Bad.
94
95 /* On entry to this basic block:
96 * t0 == a source quad not containing a null.
97 * a0 - current aligned destination address
98 * a1 - current aligned source address
99 * a2 - count of quadwords to move.
100 * NOTE: Loop improvement - unrolling this is going to be
101 * a huge win, since we're going to stall otherwise.
102 * Fix this later. For _really_ large copies, look
103 * at using wh64 on a look-ahead basis. See the code
104 * in clear_user.S and copy_user.S.
105 * Presumably, since (a0) and (a1) do not overlap (by C definition)
106 * Lots of nops here:
107 * - Separate loads from stores
108 * - Keep it to 1 branch/quadpack so the branch predictor
109 * can train.
110 */
111$a_loop:
112 stq_u t0, 0(a0) # L :
113 addq a0, 8, a0 # E :
114 nop
115 subq a2, 1, a2 # E :
116
117 EX( ldq_u t0, 0(a1) ) # L :
118 addq a1, 8, a1 # E :
119 cmpbge zero, t0, t8 # E : Stall 2 cycles on t0
120 beq a2, $a_eoc # U :
121
122 beq t8, $a_loop # U :
123 nop
124 nop
125 nop
126
127 /* Take care of the final (partial) word store. At this point
128 * the end-of-count bit is set in t8 iff it applies.
129 *
130 * On entry to this basic block we have:
131 * t0 == the source word containing the null
132 * t8 == the cmpbge mask that found it.
133 */
134$a_eos:
135 negq t8, t12 # E : find low bit set
136 and t8, t12, t12 # E :
137
138 /* We're doing a partial word store and so need to combine
139 our source and original destination words. */
140 ldq_u t1, 0(a0) # L :
141 subq t12, 1, t6 # E :
142
143 or t12, t6, t8 # E :
144 zapnot t0, t8, t0 # U : clear src bytes > null
145 zap t1, t8, t1 # U : clear dst bytes <= null
146 or t0, t1, t0 # E :
147
148 stq_u t0, 0(a0) # L :
149 br $finish_up # L0 :
150 nop
151 nop
152
153 /* Add the end-of-count bit to the eos detection bitmask. */
154 .align 4
155$a_eoc:
156 or t10, t8, t8
157 br $a_eos
158 nop
159 nop
160
161
162/* The source and destination are not co-aligned. Align the destination
163 and cope. We have to be very careful about not reading too much and
164 causing a SEGV. */
165
166 .align 4
167$u_head:
168 /* We know just enough now to be able to assemble the first
169 full source word. We can still find a zero at the end of it
170 that prevents us from outputting the whole thing.
171
172 On entry to this basic block:
173 t0 == the first dest word, unmasked
174 t1 == the shifted low bits of the first source word
175 t6 == bytemask that is -1 in dest word bytes */
176
177 EX( ldq_u t2, 8(a1) ) # L : load second src word
178 addq a1, 8, a1 # E :
179 mskql t0, a0, t0 # U : mask trailing garbage in dst
180 extqh t2, a1, t4 # U :
181
182 or t1, t4, t1 # E : first aligned src word complete
183 mskqh t1, a0, t1 # U : mask leading garbage in src
184 or t0, t1, t0 # E : first output word complete
185 or t0, t6, t6 # E : mask original data for zero test
186
187 cmpbge zero, t6, t8 # E :
188 beq a2, $u_eocfin # U :
189 bne t8, $u_final # U : bad news - 2nd branch in a quad
190 lda t6, -1 # E : mask out the bits we have
191
192 mskql t6, a1, t6 # U : already seen
193 stq_u t0, 0(a0) # L : store first output word
194 or t6, t2, t2 # E :
195 cmpbge zero, t2, t8 # E : find nulls in second partial
196
197 addq a0, 8, a0 # E :
198 subq a2, 1, a2 # E :
199 bne t8, $u_late_head_exit # U :
200 nop
201
202 /* Finally, we've got all the stupid leading edge cases taken care
203 of and we can set up to enter the main loop. */
204
205 extql t2, a1, t1 # U : position hi-bits of lo word
206 EX( ldq_u t2, 8(a1) ) # L : read next high-order source word
207 addq a1, 8, a1 # E :
208 cmpbge zero, t2, t8 # E :
209
210 beq a2, $u_eoc # U :
211 bne t8, $u_eos # U :
212 nop
213 nop
214
215 /* Unaligned copy main loop. In order to avoid reading too much,
216 the loop is structured to detect zeros in aligned source words.
217 This has, unfortunately, effectively pulled half of a loop
218 iteration out into the head and half into the tail, but it does
219 prevent nastiness from accumulating in the very thing we want
220 to run as fast as possible.
221
222 On entry to this basic block:
223 t1 == the shifted high-order bits from the previous source word
224 t2 == the unshifted current source word
225
226 We further know that t2 does not contain a null terminator. */
227
228 /*
229 * Extra nops here:
230 * separate load quads from store quads
231 * only one branch/quad to permit predictor training
232 */
233
234 .align 4
235$u_loop:
236 extqh t2, a1, t0 # U : extract high bits for current word
237 addq a1, 8, a1 # E :
238 extql t2, a1, t3 # U : extract low bits for next time
239 addq a0, 8, a0 # E :
240
241 or t0, t1, t0 # E : current dst word now complete
242 EX( ldq_u t2, 0(a1) ) # L : load high word for next time
243 subq a2, 1, a2 # E :
244 nop
245
246 stq_u t0, -8(a0) # L : save the current word
247 mov t3, t1 # E :
248 cmpbge zero, t2, t8 # E : test new word for eos
249 beq a2, $u_eoc # U :
250
251 beq t8, $u_loop # U :
252 nop
253 nop
254 nop
255
256 /* We've found a zero somewhere in the source word we just read.
257 If it resides in the lower half, we have one (probably partial)
258 word to write out, and if it resides in the upper half, we
259 have one full and one partial word left to write out.
260
261 On entry to this basic block:
262 t1 == the shifted high-order bits from the previous source word
263 t2 == the unshifted current source word. */
264 .align 4
265$u_eos:
266 extqh t2, a1, t0 # U :
267 or t0, t1, t0 # E : first (partial) source word complete
268 cmpbge zero, t0, t8 # E : is the null in this first bit?
269 nop
270
271 bne t8, $u_final # U :
272 stq_u t0, 0(a0) # L : the null was in the high-order bits
273 addq a0, 8, a0 # E :
274 subq a2, 1, a2 # E :
275
276 .align 4
277$u_late_head_exit:
278 extql t2, a1, t0 # U :
279 cmpbge zero, t0, t8 # E :
280 or t8, t10, t6 # E :
281 cmoveq a2, t6, t8 # E :
282
283 /* Take care of a final (probably partial) result word.
284 On entry to this basic block:
285 t0 == assembled source word
286 t8 == cmpbge mask that found the null. */
287 .align 4
288$u_final:
289 negq t8, t6 # E : isolate low bit set
290 and t6, t8, t12 # E :
291 ldq_u t1, 0(a0) # L :
292 subq t12, 1, t6 # E :
293
294 or t6, t12, t8 # E :
295 zapnot t0, t8, t0 # U : kill source bytes > null
296 zap t1, t8, t1 # U : kill dest bytes <= null
297 or t0, t1, t0 # E :
298
299 stq_u t0, 0(a0) # E :
300 br $finish_up # U :
301 nop
302 nop
303
304 .align 4
305$u_eoc: # end-of-count
306 extqh t2, a1, t0 # U :
307 or t0, t1, t0 # E :
308 cmpbge zero, t0, t8 # E :
309 nop
310
311 .align 4
312$u_eocfin: # end-of-count, final word
313 or t10, t8, t8 # E :
314 br $u_final # U :
315 nop
316 nop
317
318 /* Unaligned copy entry point. */
319 .align 4
320$unaligned:
321
322 srl a3, 3, a2 # U : a2 = loop counter = (count - 1)/8
323 and a0, 7, t4 # E : find dest misalignment
324 and a1, 7, t5 # E : find src misalignment
325 mov zero, t0 # E :
326
327 /* Conditionally load the first destination word and a bytemask
328 with 0xff indicating that the destination byte is sacrosanct. */
329
330 mov zero, t6 # E :
331 beq t4, 1f # U :
332 ldq_u t0, 0(a0) # L :
333 lda t6, -1 # E :
334
335 mskql t6, a0, t6 # E :
336 nop
337 nop
338 nop
339
340 .align 4
3411:
342 subq a1, t4, a1 # E : sub dest misalignment from src addr
343 /* If source misalignment is larger than dest misalignment, we need
344 extra startup checks to avoid SEGV. */
345 cmplt t4, t5, t12 # E :
346 extql t1, a1, t1 # U : shift src into place
347 lda t2, -1 # E : for creating masks later
348
349 beq t12, $u_head # U :
350 mskqh t2, t5, t2 # U : begin src byte validity mask
351 cmpbge zero, t1, t8 # E : is there a zero?
352 nop
353
354 extql t2, a1, t2 # U :
355 or t8, t10, t5 # E : test for end-of-count too
356 cmpbge zero, t2, t3 # E :
357 cmoveq a2, t5, t8 # E : Latency=2, extra map slot
358
359 nop # E : goes with cmov
360 andnot t8, t3, t8 # E :
361 beq t8, $u_head # U :
362 nop
363
364 /* At this point we've found a zero in the first partial word of
365 the source. We need to isolate the valid source data and mask
366 it into the original destination data. (Incidentally, we know
367 that we'll need at least one byte of that original dest word.) */
368
369 ldq_u t0, 0(a0) # L :
370 negq t8, t6 # E : build bitmask of bytes <= zero
371 mskqh t1, t4, t1 # U :
372 and t6, t8, t12 # E :
373
374 subq t12, 1, t6 # E :
375 or t6, t12, t8 # E :
376 zapnot t2, t8, t2 # U : prepare source word; mirror changes
377 zapnot t1, t8, t1 # U : to source validity mask
378
379 andnot t0, t2, t0 # E : zero place for source to reside
380 or t0, t1, t0 # E : and put it there
381 stq_u t0, 0(a0) # L :
382 nop
383
384 .align 4
385$finish_up:
386 zapnot t0, t12, t4 # U : was last byte written null?
387 and t12, 0xf0, t3 # E : binary search for the address of the
388 cmovne t4, 1, t4 # E : Latency=2, extra map slot
389 nop # E : with cmovne
390
391 and t12, 0xcc, t2 # E : last byte written
392 and t12, 0xaa, t1 # E :
393 cmovne t3, 4, t3 # E : Latency=2, extra map slot
394 nop # E : with cmovne
395
396 bic a0, 7, t0
397 cmovne t2, 2, t2 # E : Latency=2, extra map slot
398 nop # E : with cmovne
399 nop
400
401 cmovne t1, 1, t1 # E : Latency=2, extra map slot
402 nop # E : with cmovne
403 addq t0, t3, t0 # E :
404 addq t1, t2, t1 # E :
405
406 addq t0, t1, t0 # E :
407 addq t0, t4, t0 # add one if we filled the buffer
408 subq t0, v0, v0 # find string length
409 ret # L0 :
410
411 .align 4
412$zerolength:
413 nop
414 nop
415 nop
416 clr v0
417
418$exception:
419 nop
420 nop
421 nop
422 ret
423
424 .end __strncpy_from_user
diff --git a/arch/alpha/lib/ev67-strlen_user.S b/arch/alpha/lib/ev67-strlen_user.S
new file mode 100644
index 00000000000..57e0d77b81a
--- /dev/null
+++ b/arch/alpha/lib/ev67-strlen_user.S
@@ -0,0 +1,107 @@
1/*
2 * arch/alpha/lib/ev67-strlen_user.S
3 * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
4 *
5 * Return the length of the string including the NULL terminator
6 * (strlen+1) or zero if an error occurred.
7 *
8 * In places where it is critical to limit the processing time,
9 * and the data is not trusted, strnlen_user() should be used.
10 * It will return a value greater than its second argument if
11 * that limit would be exceeded. This implementation is allowed
12 * to access memory beyond the limit, but will not cross a page
13 * boundary when doing so.
14 *
15 * Much of the information about 21264 scheduling/coding comes from:
16 * Compiler Writer's Guide for the Alpha 21264
17 * abbreviated as 'CWG' in other comments here
18 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
19 * Scheduling notation:
20 * E - either cluster
21 * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
22 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
23 * Try not to change the actual algorithm if possible for consistency.
24 */
25
26#include <asm/regdef.h>
27
28
29/* Allow an exception for an insn; exit if we get one. */
30#define EX(x,y...) \
31 99: x,##y; \
32 .section __ex_table,"a"; \
33 .long 99b - .; \
34 lda v0, $exception-99b(zero); \
35 .previous
36
37
38 .set noreorder
39 .set noat
40 .text
41
42 .globl __strlen_user
43 .ent __strlen_user
44 .frame sp, 0, ra
45
46 .align 4
47__strlen_user:
48 ldah a1, 32767(zero) # do not use plain strlen_user() for strings
49 # that might be almost 2 GB long; you should
50 # be using strnlen_user() instead
51 nop
52 nop
53 nop
54
55 .globl __strnlen_user
56
57 .align 4
58__strnlen_user:
59 .prologue 0
60 EX( ldq_u t0, 0(a0) ) # L : load first quadword (a0 may be misaligned)
61 lda t1, -1(zero) # E :
62
63 insqh t1, a0, t1 # U :
64 andnot a0, 7, v0 # E :
65 or t1, t0, t0 # E :
66 subq a0, 1, a0 # E : get our +1 for the return
67
68 cmpbge zero, t0, t1 # E : t1 <- bitmask: bit i == 1 <==> i-th byte == 0
69 subq a1, 7, t2 # E :
70 subq a0, v0, t0 # E :
71 bne t1, $found # U :
72
73 addq t2, t0, t2 # E :
74 addq a1, 1, a1 # E :
75 nop # E :
76 nop # E :
77
78 .align 4
79$loop: ble t2, $limit # U :
80 EX( ldq t0, 8(v0) ) # L :
81 nop # E :
82 nop # E :
83
84 cmpbge zero, t0, t1 # E :
85 subq t2, 8, t2 # E :
86 addq v0, 8, v0 # E : addr += 8
87 beq t1, $loop # U :
88
89$found: cttz t1, t2 # U0 :
90 addq v0, t2, v0 # E :
91 subq v0, a0, v0 # E :
92 ret # L0 :
93
94$exception:
95 nop
96 nop
97 nop
98 ret
99
100 .align 4 # currently redundant
101$limit:
102 nop
103 nop
104 subq a1, t2, v0
105 ret
106
107 .end __strlen_user
diff --git a/arch/alpha/lib/strlen_user.S b/arch/alpha/lib/strlen_user.S
new file mode 100644
index 00000000000..508a18e9647
--- /dev/null
+++ b/arch/alpha/lib/strlen_user.S
@@ -0,0 +1,91 @@
1/*
2 * arch/alpha/lib/strlen_user.S
3 *
4 * Return the length of the string including the NUL terminator
5 * (strlen+1) or zero if an error occurred.
6 *
7 * In places where it is critical to limit the processing time,
8 * and the data is not trusted, strnlen_user() should be used.
9 * It will return a value greater than its second argument if
10 * that limit would be exceeded. This implementation is allowed
11 * to access memory beyond the limit, but will not cross a page
12 * boundary when doing so.
13 */
14
15#include <asm/regdef.h>
16
17
18/* Allow an exception for an insn; exit if we get one. */
19#define EX(x,y...) \
20 99: x,##y; \
21 .section __ex_table,"a"; \
22 .long 99b - .; \
23 lda v0, $exception-99b(zero); \
24 .previous
25
26
27 .set noreorder
28 .set noat
29 .text
30
31 .globl __strlen_user
32 .ent __strlen_user
33 .frame sp, 0, ra
34
35 .align 3
36__strlen_user:
37 ldah a1, 32767(zero) # do not use plain strlen_user() for strings
38 # that might be almost 2 GB long; you should
39 # be using strnlen_user() instead
40
41 .globl __strnlen_user
42
43 .align 3
44__strnlen_user:
45 .prologue 0
46
47 EX( ldq_u t0, 0(a0) ) # load first quadword (a0 may be misaligned)
48 lda t1, -1(zero)
49 insqh t1, a0, t1
50 andnot a0, 7, v0
51 or t1, t0, t0
52 subq a0, 1, a0 # get our +1 for the return
53 cmpbge zero, t0, t1 # t1 <- bitmask: bit i == 1 <==> i-th byte == 0
54 subq a1, 7, t2
55 subq a0, v0, t0
56 bne t1, $found
57
58 addq t2, t0, t2
59 addq a1, 1, a1
60
61 .align 3
62$loop: ble t2, $limit
63 EX( ldq t0, 8(v0) )
64 subq t2, 8, t2
65 addq v0, 8, v0 # addr += 8
66 cmpbge zero, t0, t1
67 beq t1, $loop
68
69$found: negq t1, t2 # clear all but least set bit
70 and t1, t2, t1
71
72 and t1, 0xf0, t2 # binary search for that set bit
73 and t1, 0xcc, t3
74 and t1, 0xaa, t4
75 cmovne t2, 4, t2
76 cmovne t3, 2, t3
77 cmovne t4, 1, t4
78 addq t2, t3, t2
79 addq v0, t4, v0
80 addq v0, t2, v0
81 nop # dual issue next two on ev4 and ev5
82 subq v0, a0, v0
83$exception:
84 ret
85
86 .align 3 # currently redundant
87$limit:
88 subq a1, t2, v0
89 ret
90
91 .end __strlen_user
diff --git a/arch/alpha/lib/strncpy_from_user.S b/arch/alpha/lib/strncpy_from_user.S
new file mode 100644
index 00000000000..73ee21160ff
--- /dev/null
+++ b/arch/alpha/lib/strncpy_from_user.S
@@ -0,0 +1,339 @@
1/*
2 * arch/alpha/lib/strncpy_from_user.S
3 * Contributed by Richard Henderson (rth@tamu.edu)
4 *
5 * Just like strncpy except in the return value:
6 *
7 * -EFAULT if an exception occurs before the terminator is copied.
8 * N if the buffer filled.
9 *
10 * Otherwise the length of the string is returned.
11 */
12
13
14#include <asm/errno.h>
15#include <asm/regdef.h>
16
17
18/* Allow an exception for an insn; exit if we get one. */
19#define EX(x,y...) \
20 99: x,##y; \
21 .section __ex_table,"a"; \
22 .long 99b - .; \
23 lda $31, $exception-99b($0); \
24 .previous
25
26
27 .set noat
28 .set noreorder
29 .text
30
31 .globl __strncpy_from_user
32 .ent __strncpy_from_user
33 .frame $30, 0, $26
34 .prologue 0
35
36 .align 3
37$aligned:
38 /* On entry to this basic block:
39 t0 == the first destination word for masking back in
40 t1 == the first source word. */
41
42 /* Create the 1st output word and detect 0's in the 1st input word. */
43 lda t2, -1 # e1 : build a mask against false zero
44 mskqh t2, a1, t2 # e0 : detection in the src word
45 mskqh t1, a1, t3 # e0 :
46 ornot t1, t2, t2 # .. e1 :
47 mskql t0, a1, t0 # e0 : assemble the first output word
48 cmpbge zero, t2, t8 # .. e1 : bits set iff null found
49 or t0, t3, t0 # e0 :
50 beq a2, $a_eoc # .. e1 :
51 bne t8, $a_eos # .. e1 :
52
53 /* On entry to this basic block:
54 t0 == a source word not containing a null. */
55
56$a_loop:
57 stq_u t0, 0(a0) # e0 :
58 addq a0, 8, a0 # .. e1 :
59 EX( ldq_u t0, 0(a1) ) # e0 :
60 addq a1, 8, a1 # .. e1 :
61 subq a2, 1, a2 # e0 :
62 cmpbge zero, t0, t8 # .. e1 (stall)
63 beq a2, $a_eoc # e1 :
64 beq t8, $a_loop # e1 :
65
66 /* Take care of the final (partial) word store. At this point
67 the end-of-count bit is set in t8 iff it applies.
68
69 On entry to this basic block we have:
70 t0 == the source word containing the null
71 t8 == the cmpbge mask that found it. */
72
73$a_eos:
74 negq t8, t12 # e0 : find low bit set
75 and t8, t12, t12 # e1 (stall)
76
77 /* For the sake of the cache, don't read a destination word
78 if we're not going to need it. */
79 and t12, 0x80, t6 # e0 :
80 bne t6, 1f # .. e1 (zdb)
81
82 /* We're doing a partial word store and so need to combine
83 our source and original destination words. */
84 ldq_u t1, 0(a0) # e0 :
85 subq t12, 1, t6 # .. e1 :
86 or t12, t6, t8 # e0 :
87 unop #
88 zapnot t0, t8, t0 # e0 : clear src bytes > null
89 zap t1, t8, t1 # .. e1 : clear dst bytes <= null
90 or t0, t1, t0 # e1 :
91
921: stq_u t0, 0(a0)
93 br $finish_up
94
95 /* Add the end-of-count bit to the eos detection bitmask. */
96$a_eoc:
97 or t10, t8, t8
98 br $a_eos
99
100 /*** The Function Entry Point ***/
101 .align 3
102__strncpy_from_user:
103 mov a0, v0 # save the string start
104 beq a2, $zerolength
105
106 /* Are source and destination co-aligned? */
107 xor a0, a1, t1 # e0 :
108 and a0, 7, t0 # .. e1 : find dest misalignment
109 and t1, 7, t1 # e0 :
110 addq a2, t0, a2 # .. e1 : bias count by dest misalignment
111 subq a2, 1, a2 # e0 :
112 and a2, 7, t2 # e1 :
113 srl a2, 3, a2 # e0 : a2 = loop counter = (count - 1)/8
114 addq zero, 1, t10 # .. e1 :
115 sll t10, t2, t10 # e0 : t10 = bitmask of last count byte
116 bne t1, $unaligned # .. e1 :
117
118 /* We are co-aligned; take care of a partial first word. */
119
120 EX( ldq_u t1, 0(a1) ) # e0 : load first src word
121 addq a1, 8, a1 # .. e1 :
122
123 beq t0, $aligned # avoid loading dest word if not needed
124 ldq_u t0, 0(a0) # e0 :
125 br $aligned # .. e1 :
126
127
128/* The source and destination are not co-aligned. Align the destination
129 and cope. We have to be very careful about not reading too much and
130 causing a SEGV. */
131
132 .align 3
133$u_head:
134 /* We know just enough now to be able to assemble the first
135 full source word. We can still find a zero at the end of it
136 that prevents us from outputting the whole thing.
137
138 On entry to this basic block:
139 t0 == the first dest word, unmasked
140 t1 == the shifted low bits of the first source word
141 t6 == bytemask that is -1 in dest word bytes */
142
143 EX( ldq_u t2, 8(a1) ) # e0 : load second src word
144 addq a1, 8, a1 # .. e1 :
145 mskql t0, a0, t0 # e0 : mask trailing garbage in dst
146 extqh t2, a1, t4 # e0 :
147 or t1, t4, t1 # e1 : first aligned src word complete
148 mskqh t1, a0, t1 # e0 : mask leading garbage in src
149 or t0, t1, t0 # e0 : first output word complete
150 or t0, t6, t6 # e1 : mask original data for zero test
151 cmpbge zero, t6, t8 # e0 :
152 beq a2, $u_eocfin # .. e1 :
153 bne t8, $u_final # e1 :
154
155 lda t6, -1 # e1 : mask out the bits we have
156 mskql t6, a1, t6 # e0 : already seen
157 stq_u t0, 0(a0) # e0 : store first output word
158 or t6, t2, t2 # .. e1 :
159 cmpbge zero, t2, t8 # e0 : find nulls in second partial
160 addq a0, 8, a0 # .. e1 :
161 subq a2, 1, a2 # e0 :
162 bne t8, $u_late_head_exit # .. e1 :
163
164 /* Finally, we've got all the stupid leading edge cases taken care
165 of and we can set up to enter the main loop. */
166
167 extql t2, a1, t1 # e0 : position hi-bits of lo word
168 EX( ldq_u t2, 8(a1) ) # .. e1 : read next high-order source word
169 addq a1, 8, a1 # e0 :
170 cmpbge zero, t2, t8 # e1 (stall)
171 beq a2, $u_eoc # e1 :
172 bne t8, $u_eos # e1 :
173
174 /* Unaligned copy main loop. In order to avoid reading too much,
175 the loop is structured to detect zeros in aligned source words.
176 This has, unfortunately, effectively pulled half of a loop
177 iteration out into the head and half into the tail, but it does
178 prevent nastiness from accumulating in the very thing we want
179 to run as fast as possible.
180
181 On entry to this basic block:
182 t1 == the shifted high-order bits from the previous source word
183 t2 == the unshifted current source word
184
185 We further know that t2 does not contain a null terminator. */
186
187 .align 3
188$u_loop:
189 extqh t2, a1, t0 # e0 : extract high bits for current word
190 addq a1, 8, a1 # .. e1 :
191 extql t2, a1, t3 # e0 : extract low bits for next time
192 addq a0, 8, a0 # .. e1 :
193 or t0, t1, t0 # e0 : current dst word now complete
194 EX( ldq_u t2, 0(a1) ) # .. e1 : load high word for next time
195 stq_u t0, -8(a0) # e0 : save the current word
196 mov t3, t1 # .. e1 :
197 subq a2, 1, a2 # e0 :
198 cmpbge zero, t2, t8 # .. e1 : test new word for eos
199 beq a2, $u_eoc # e1 :
200 beq t8, $u_loop # e1 :
201
202 /* We've found a zero somewhere in the source word we just read.
203 If it resides in the lower half, we have one (probably partial)
204 word to write out, and if it resides in the upper half, we
205 have one full and one partial word left to write out.
206
207 On entry to this basic block:
208 t1 == the shifted high-order bits from the previous source word
209 t2 == the unshifted current source word. */
210$u_eos:
211 extqh t2, a1, t0 # e0 :
212 or t0, t1, t0 # e1 : first (partial) source word complete
213
214 cmpbge zero, t0, t8 # e0 : is the null in this first bit?
215 bne t8, $u_final # .. e1 (zdb)
216
217 stq_u t0, 0(a0) # e0 : the null was in the high-order bits
218 addq a0, 8, a0 # .. e1 :
219 subq a2, 1, a2 # e1 :
220
221$u_late_head_exit:
222 extql t2, a1, t0 # .. e0 :
223 cmpbge zero, t0, t8 # e0 :
224 or t8, t10, t6 # e1 :
225 cmoveq a2, t6, t8 # e0 :
226 nop # .. e1 :
227
228 /* Take care of a final (probably partial) result word.
229 On entry to this basic block:
230 t0 == assembled source word
231 t8 == cmpbge mask that found the null. */
232$u_final:
233 negq t8, t6 # e0 : isolate low bit set
234 and t6, t8, t12 # e1 :
235
236 and t12, 0x80, t6 # e0 : avoid dest word load if we can
237 bne t6, 1f # .. e1 (zdb)
238
239 ldq_u t1, 0(a0) # e0 :
240 subq t12, 1, t6 # .. e1 :
241 or t6, t12, t8 # e0 :
242 zapnot t0, t8, t0 # .. e1 : kill source bytes > null
243 zap t1, t8, t1 # e0 : kill dest bytes <= null
244 or t0, t1, t0 # e1 :
245
2461: stq_u t0, 0(a0) # e0 :
247 br $finish_up
248
249$u_eoc: # end-of-count
250 extqh t2, a1, t0
251 or t0, t1, t0
252 cmpbge zero, t0, t8
253
254$u_eocfin: # end-of-count, final word
255 or t10, t8, t8
256 br $u_final
257
258 /* Unaligned copy entry point. */
259 .align 3
260$unaligned:
261
262 EX( ldq_u t1, 0(a1) ) # e0 : load first source word
263
264 and a0, 7, t4 # .. e1 : find dest misalignment
265 and a1, 7, t5 # e0 : find src misalignment
266
267 /* Conditionally load the first destination word and a bytemask
268 with 0xff indicating that the destination byte is sacrosanct. */
269
270 mov zero, t0 # .. e1 :
271 mov zero, t6 # e0 :
272 beq t4, 1f # .. e1 :
273 ldq_u t0, 0(a0) # e0 :
274 lda t6, -1 # .. e1 :
275 mskql t6, a0, t6 # e0 :
2761:
277 subq a1, t4, a1 # .. e1 : sub dest misalignment from src addr
278
279 /* If source misalignment is larger than dest misalignment, we need
280 extra startup checks to avoid SEGV. */
281
282 cmplt t4, t5, t12 # e1 :
283 extql t1, a1, t1 # .. e0 : shift src into place
284 lda t2, -1 # e0 : for creating masks later
285 beq t12, $u_head # e1 :
286
287 mskqh t2, t5, t2 # e0 : begin src byte validity mask
288 cmpbge zero, t1, t8 # .. e1 : is there a zero?
289 extql t2, a1, t2 # e0 :
290 or t8, t10, t5 # .. e1 : test for end-of-count too
291 cmpbge zero, t2, t3 # e0 :
292 cmoveq a2, t5, t8 # .. e1 :
293 andnot t8, t3, t8 # e0 :
294 beq t8, $u_head # .. e1 (zdb)
295
296 /* At this point we've found a zero in the first partial word of
297 the source. We need to isolate the valid source data and mask
298 it into the original destination data. (Incidentally, we know
299 that we'll need at least one byte of that original dest word.) */
300
301 ldq_u t0, 0(a0) # e0 :
302 negq t8, t6 # .. e1 : build bitmask of bytes <= zero
303 mskqh t1, t4, t1 # e0 :
304 and t6, t8, t12 # .. e1 :
305 subq t12, 1, t6 # e0 :
306 or t6, t12, t8 # e1 :
307
308 zapnot t2, t8, t2 # e0 : prepare source word; mirror changes
309 zapnot t1, t8, t1 # .. e1 : to source validity mask
310
311 andnot t0, t2, t0 # e0 : zero place for source to reside
312 or t0, t1, t0 # e1 : and put it there
313 stq_u t0, 0(a0) # e0 :
314
315$finish_up:
316 zapnot t0, t12, t4 # was last byte written null?
317 cmovne t4, 1, t4
318
319 and t12, 0xf0, t3 # binary search for the address of the
320 and t12, 0xcc, t2 # last byte written
321 and t12, 0xaa, t1
322 bic a0, 7, t0
323 cmovne t3, 4, t3
324 cmovne t2, 2, t2
325 cmovne t1, 1, t1
326 addq t0, t3, t0
327 addq t1, t2, t1
328 addq t0, t1, t0
329 addq t0, t4, t0 # add one if we filled the buffer
330
331 subq t0, v0, v0 # find string length
332 ret
333
334$zerolength:
335 clr v0
336$exception:
337 ret
338
339 .end __strncpy_from_user
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-14 09:42:56 -0400