Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1329 insertions, 0 deletions

diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c
new file mode 100644
index 000000000000..7cf7a9600025
--- /dev/null
+++ b/arch/ppc64/kernel/sys_ppc32.c
@@ -0,0 +1,1329 @@
+/*
+ * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 2001 IBM
+ * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment.
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h> 
+#include <linux/mm.h> 
+#include <linux/file.h> 
+#include <linux/signal.h>
+#include <linux/resource.h>
+#include <linux/times.h>
+#include <linux/utsname.h>
+#include <linux/timex.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/slab.h>
+#include <linux/uio.h>
+#include <linux/aio.h>
+#include <linux/nfs_fs.h>
+#include <linux/module.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/syscall.h>
+#include <linux/poll.h>
+#include <linux/personality.h>
+#include <linux/stat.h>
+#include <linux/filter.h>
+#include <linux/highmem.h>
+#include <linux/highuid.h>
+#include <linux/mman.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/icmpv6.h>
+#include <linux/syscalls.h>
+#include <linux/unistd.h>
+#include <linux/sysctl.h>
+#include <linux/binfmts.h>
+#include <linux/dnotify.h>
+#include <linux/security.h>
+#include <linux/compat.h>
+#include <linux/ptrace.h>
+#include <linux/aio_abi.h>
+#include <linux/elf.h>
+
+#include <net/scm.h>
+#include <net/sock.h>
+
+#include <asm/ptrace.h>
+#include <asm/types.h>
+#include <asm/ipc.h>
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+#include <asm/semaphore.h>
+#include <asm/ppcdebug.h>
+#include <asm/time.h>
+#include <asm/mmu_context.h>
+#include <asm/systemcfg.h>
+
+#include "pci.h"
+
+/* readdir & getdents */
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
+#define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
+
+struct old_linux_dirent32 {
+        u32             d_ino;
+        u32             d_offset;
+        unsigned short  d_namlen;
+        char            d_name[1];
+};
+
+struct readdir_callback32 {
+        struct old_linux_dirent32 __user * dirent;
+        int count;
+};
+
+static int fillonedir(void * __buf, const char * name, int namlen,
+                                  off_t offset, ino_t ino, unsigned int d_type)
+{
+        struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
+        struct old_linux_dirent32 __user * dirent;
+
+        if (buf->count)
+                return -EINVAL;
+        buf->count++;
+        dirent = buf->dirent;
+        put_user(ino, &dirent->d_ino);
+        put_user(offset, &dirent->d_offset);
+        put_user(namlen, &dirent->d_namlen);
+        copy_to_user(dirent->d_name, name, namlen);
+        put_user(0, dirent->d_name + namlen);
+        return 0;
+}
+
+asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
+{
+        int error = -EBADF;
+        struct file * file;
+        struct readdir_callback32 buf;
+
+        file = fget(fd);
+        if (!file)
+                goto out;
+
+        buf.count = 0;
+        buf.dirent = dirent;
+
+        error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
+        if (error < 0)
+                goto out_putf;
+        error = buf.count;
+
+out_putf:
+        fput(file);
+out:
+        return error;
+}
+
+struct linux_dirent32 {
+        u32             d_ino;
+        u32             d_off;
+        unsigned short  d_reclen;
+        char            d_name[1];
+};
+
+struct getdents_callback32 {
+        struct linux_dirent32 __user * current_dir;
+        struct linux_dirent32 __user * previous;
+        int count;
+        int error;
+};
+
+static int filldir(void * __buf, const char * name, int namlen, off_t offset,
+                   ino_t ino, unsigned int d_type)
+{
+        struct linux_dirent32 __user * dirent;
+        struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
+        int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
+
+        buf->error = -EINVAL;   /* only used if we fail.. */
+        if (reclen > buf->count)
+                return -EINVAL;
+        dirent = buf->previous;
+        if (dirent) {
+                if (__put_user(offset, &dirent->d_off))
+                        goto efault;
+        }
+        dirent = buf->current_dir;
+        if (__put_user(ino, &dirent->d_ino))
+                goto efault;
+        if (__put_user(reclen, &dirent->d_reclen))
+                goto efault;
+        if (copy_to_user(dirent->d_name, name, namlen))
+                goto efault;
+        if (__put_user(0, dirent->d_name + namlen))
+                goto efault;
+        if (__put_user(d_type, (char __user *) dirent + reclen - 1))
+                goto efault;
+        buf->previous = dirent;
+        dirent = (void __user *)dirent + reclen;
+        buf->current_dir = dirent;
+        buf->count -= reclen;
+        return 0;
+efault:
+        buf->error = -EFAULT;
+        return -EFAULT;
+}
+
+asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 __user *dirent,
+                    unsigned int count)
+{
+        struct file * file;
+        struct linux_dirent32 __user * lastdirent;
+        struct getdents_callback32 buf;
+        int error;
+
+        error = -EFAULT;
+        if (!access_ok(VERIFY_WRITE, dirent, count))
+                goto out;
+
+        error = -EBADF;
+        file = fget(fd);
+        if (!file)
+                goto out;
+
+        buf.current_dir = dirent;
+        buf.previous = NULL;
+        buf.count = count;
+        buf.error = 0;
+
+        error = vfs_readdir(file, (filldir_t)filldir, &buf);
+        if (error < 0)
+                goto out_putf;
+        error = buf.error;
+        lastdirent = buf.previous;
+        if (lastdirent) {
+                if (put_user(file->f_pos, &lastdirent->d_off))
+                        error = -EFAULT;
+                else
+                        error = count - buf.count;
+        }
+
+out_putf:
+        fput(file);
+out:
+        return error;
+}
+
+asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
+                compat_ulong_t __user *outp, compat_ulong_t __user *exp,
+                compat_uptr_t tvp_x)
+{
+        /* sign extend n */
+        return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
+}
+
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
+{
+        long err;
+
+        if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
+            !new_valid_dev(stat->rdev))
+                return -EOVERFLOW;
+
+        err  = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT;
+        err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
+        err |= __put_user(stat->ino, &statbuf->st_ino);
+        err |= __put_user(stat->mode, &statbuf->st_mode);
+        err |= __put_user(stat->nlink, &statbuf->st_nlink);
+        err |= __put_user(stat->uid, &statbuf->st_uid);
+        err |= __put_user(stat->gid, &statbuf->st_gid);
+        err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
+        err |= __put_user(stat->size, &statbuf->st_size);
+        err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime);
+        err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
+        err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+        err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
+        err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+        err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
+        err |= __put_user(stat->blksize, &statbuf->st_blksize);
+        err |= __put_user(stat->blocks, &statbuf->st_blocks);
+        err |= __put_user(0, &statbuf->__unused4[0]);
+        err |= __put_user(0, &statbuf->__unused4[1]);
+
+        return err;
+}
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2)
+{
+        return sys_sysfs((int)option, arg1, arg2);
+}
+
+/* Handle adjtimex compatibility. */
+struct timex32 {
+        u32 modes;
+        s32 offset, freq, maxerror, esterror;
+        s32 status, constant, precision, tolerance;
+        struct compat_timeval time;
+        s32 tick;
+        s32 ppsfreq, jitter, shift, stabil;
+        s32 jitcnt, calcnt, errcnt, stbcnt;
+        s32  :32; s32  :32; s32  :32; s32  :32;
+        s32  :32; s32  :32; s32  :32; s32  :32;
+        s32  :32; s32  :32; s32  :32; s32  :32;
+};
+
+extern int do_adjtimex(struct timex *);
+extern void ppc_adjtimex(void);
+
+asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
+{
+        struct timex txc;
+        int ret;
+        
+        memset(&txc, 0, sizeof(struct timex));
+
+        if(get_user(txc.modes, &utp->modes) ||
+           __get_user(txc.offset, &utp->offset) ||
+           __get_user(txc.freq, &utp->freq) ||
+           __get_user(txc.maxerror, &utp->maxerror) ||
+           __get_user(txc.esterror, &utp->esterror) ||
+           __get_user(txc.status, &utp->status) ||
+           __get_user(txc.constant, &utp->constant) ||
+           __get_user(txc.precision, &utp->precision) ||
+           __get_user(txc.tolerance, &utp->tolerance) ||
+           __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+           __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+           __get_user(txc.tick, &utp->tick) ||
+           __get_user(txc.ppsfreq, &utp->ppsfreq) ||
+           __get_user(txc.jitter, &utp->jitter) ||
+           __get_user(txc.shift, &utp->shift) ||
+           __get_user(txc.stabil, &utp->stabil) ||
+           __get_user(txc.jitcnt, &utp->jitcnt) ||
+           __get_user(txc.calcnt, &utp->calcnt) ||
+           __get_user(txc.errcnt, &utp->errcnt) ||
+           __get_user(txc.stbcnt, &utp->stbcnt))
+                return -EFAULT;
+
+        ret = do_adjtimex(&txc);
+
+        /* adjust the conversion of TB to time of day to track adjtimex */
+        ppc_adjtimex();
+
+        if(put_user(txc.modes, &utp->modes) ||
+           __put_user(txc.offset, &utp->offset) ||
+           __put_user(txc.freq, &utp->freq) ||
+           __put_user(txc.maxerror, &utp->maxerror) ||
+           __put_user(txc.esterror, &utp->esterror) ||
+           __put_user(txc.status, &utp->status) ||
+           __put_user(txc.constant, &utp->constant) ||
+           __put_user(txc.precision, &utp->precision) ||
+           __put_user(txc.tolerance, &utp->tolerance) ||
+           __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+           __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+           __put_user(txc.tick, &utp->tick) ||
+           __put_user(txc.ppsfreq, &utp->ppsfreq) ||
+           __put_user(txc.jitter, &utp->jitter) ||
+           __put_user(txc.shift, &utp->shift) ||
+           __put_user(txc.stabil, &utp->stabil) ||
+           __put_user(txc.jitcnt, &utp->jitcnt) ||
+           __put_user(txc.calcnt, &utp->calcnt) ||
+           __put_user(txc.errcnt, &utp->errcnt) ||
+           __put_user(txc.stbcnt, &utp->stbcnt))
+                ret = -EFAULT;
+
+        return ret;
+}
+
+
+/* These are here just in case some old sparc32 binary calls it. */
+asmlinkage long sys32_pause(void)
+{
+        current->state = TASK_INTERRUPTIBLE;
+        schedule();
+        
+        return -ERESTARTNOHAND;
+}
+
+
+
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
+{
+        long usec;
+
+        if (!access_ok(VERIFY_READ, i, sizeof(*i)))
+                return -EFAULT;
+        if (__get_user(o->tv_sec, &i->tv_sec))
+                return -EFAULT;
+        if (__get_user(usec, &i->tv_usec))
+                return -EFAULT;
+        o->tv_nsec = usec * 1000;
+        return 0;
+}
+
+static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
+{
+        return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
+                (__put_user(i->tv_sec, &o->tv_sec) |
+                 __put_user(i->tv_usec, &o->tv_usec)));
+}
+
+struct sysinfo32 {
+        s32 uptime;
+        u32 loads[3];
+        u32 totalram;
+        u32 freeram;
+        u32 sharedram;
+        u32 bufferram;
+        u32 totalswap;
+        u32 freeswap;
+        unsigned short procs;
+        unsigned short pad;
+        u32 totalhigh;
+        u32 freehigh;
+        u32 mem_unit;
+        char _f[20-2*sizeof(int)-sizeof(int)];
+};
+
+asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
+{
+        struct sysinfo s;
+        int ret, err;
+        int bitcount=0;
+        mm_segment_t old_fs = get_fs ();
+        
+        /* The __user cast is valid due to set_fs() */
+        set_fs (KERNEL_DS);
+        ret = sys_sysinfo((struct sysinfo __user *)&s);
+        set_fs (old_fs);
+
+        /* Check to see if any memory value is too large for 32-bit and
+         * scale down if needed.
+         */
+        if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+            while (s.mem_unit < PAGE_SIZE) {
+                s.mem_unit <<= 1;
+                bitcount++;
+            }
+            s.totalram >>=bitcount;
+            s.freeram >>= bitcount;
+            s.sharedram >>= bitcount;
+            s.bufferram >>= bitcount;
+            s.totalswap >>= bitcount;
+            s.freeswap >>= bitcount;
+            s.totalhigh >>= bitcount;
+            s.freehigh >>= bitcount;
+        }
+
+        err = put_user (s.uptime, &info->uptime);
+        err |= __put_user (s.loads[0], &info->loads[0]);
+        err |= __put_user (s.loads[1], &info->loads[1]);
+        err |= __put_user (s.loads[2], &info->loads[2]);
+        err |= __put_user (s.totalram, &info->totalram);
+        err |= __put_user (s.freeram, &info->freeram);
+        err |= __put_user (s.sharedram, &info->sharedram);
+        err |= __put_user (s.bufferram, &info->bufferram);
+        err |= __put_user (s.totalswap, &info->totalswap);
+        err |= __put_user (s.freeswap, &info->freeswap);
+        err |= __put_user (s.procs, &info->procs);
+        err |= __put_user (s.totalhigh, &info->totalhigh);
+        err |= __put_user (s.freehigh, &info->freehigh);
+        err |= __put_user (s.mem_unit, &info->mem_unit);
+        if (err)
+                return -EFAULT;
+        
+        return ret;
+}
+
+
+
+
+/* Translations due to time_t size differences.  Which affects all
+   sorts of things, like timeval and itimerval.  */
+extern struct timezone sys_tz;
+
+asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+        if (tv) {
+                struct timeval ktv;
+                do_gettimeofday(&ktv);
+                if (put_tv32(tv, &ktv))
+                        return -EFAULT;
+        }
+        if (tz) {
+                if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+                        return -EFAULT;
+        }
+        
+        return 0;
+}
+
+
+
+asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+        struct timespec kts;
+        struct timezone ktz;
+        
+        if (tv) {
+                if (get_ts32(&kts, tv))
+                        return -EFAULT;
+        }
+        if (tz) {
+                if (copy_from_user(&ktz, tz, sizeof(ktz)))
+                        return -EFAULT;
+        }
+
+        return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
+}
+
+#ifdef CONFIG_SYSVIPC
+long sys32_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
+               u32 fifth)
+{
+        int version;
+
+        version = call >> 16; /* hack for backward compatibility */
+        call &= 0xffff;
+
+        switch (call) {
+
+        case SEMTIMEDOP:
+                if (fifth)
+                        /* sign extend semid */
+                        return compat_sys_semtimedop((int)first,
+                                                     compat_ptr(ptr), second,
+                                                     compat_ptr(fifth));
+                /* else fall through for normal semop() */
+        case SEMOP:
+                /* struct sembuf is the same on 32 and 64bit :)) */
+                /* sign extend semid */
+                return sys_semtimedop((int)first, compat_ptr(ptr), second,
+                                      NULL);
+        case SEMGET:
+                /* sign extend key, nsems */
+                return sys_semget((int)first, (int)second, third);
+        case SEMCTL:
+                /* sign extend semid, semnum */
+                return compat_sys_semctl((int)first, (int)second, third,
+                                         compat_ptr(ptr));
+
+        case MSGSND:
+                /* sign extend msqid */
+                return compat_sys_msgsnd((int)first, (int)second, third,
+                                         compat_ptr(ptr));
+        case MSGRCV:
+                /* sign extend msqid, msgtyp */
+                return compat_sys_msgrcv((int)first, second, (int)fifth,
+                                         third, version, compat_ptr(ptr));
+        case MSGGET:
+                /* sign extend key */
+                return sys_msgget((int)first, second);
+        case MSGCTL:
+                /* sign extend msqid */
+                return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
+
+        case SHMAT:
+                /* sign extend shmid */
+                return compat_sys_shmat((int)first, second, third, version,
+                                        compat_ptr(ptr));
+        case SHMDT:
+                return sys_shmdt(compat_ptr(ptr));
+        case SHMGET:
+                /* sign extend key_t */
+                return sys_shmget((int)first, second, third);
+        case SHMCTL:
+                /* sign extend shmid */
+                return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
+
+        default:
+                return -ENOSYS;
+        }
+
+        return -ENOSYS;
+}
+#endif
+
+/* Note: it is necessary to treat out_fd and in_fd as unsigned ints, 
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
+{
+        mm_segment_t old_fs = get_fs();
+        int ret;
+        off_t of;
+        off_t __user *up;
+
+        if (offset && get_user(of, offset))
+                return -EFAULT;
+
+        /* The __user pointer cast is valid because of the set_fs() */          
+        set_fs(KERNEL_DS);
+        up = offset ? (off_t __user *) &of : NULL;
+        ret = sys_sendfile((int)out_fd, (int)in_fd, up, count);
+        set_fs(old_fs);
+        
+        if (offset && put_user(of, offset))
+                return -EFAULT;
+                
+        return ret;
+}
+
+asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
+{
+        mm_segment_t old_fs = get_fs();
+        int ret;
+        loff_t lof;
+        loff_t __user *up;
+        
+        if (offset && get_user(lof, offset))
+                return -EFAULT;
+                
+        /* The __user pointer cast is valid because of the set_fs() */          
+        set_fs(KERNEL_DS);
+        up = offset ? (loff_t __user *) &lof : NULL;
+        ret = sys_sendfile64(out_fd, in_fd, up, count);
+        set_fs(old_fs);
+        
+        if (offset && put_user(lof, offset))
+                return -EFAULT;
+                
+        return ret;
+}
+
+long sys32_execve(unsigned long a0, unsigned long a1, unsigned long a2,
+                  unsigned long a3, unsigned long a4, unsigned long a5,
+                  struct pt_regs *regs)
+{
+        int error;
+        char * filename;
+        
+        filename = getname((char __user *) a0);
+        error = PTR_ERR(filename);
+        if (IS_ERR(filename))
+                goto out;
+        flush_fp_to_thread(current);
+        flush_altivec_to_thread(current);
+
+        error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs);
+
+        if (error == 0) {
+                task_lock(current);
+                current->ptrace &= ~PT_DTRACE;
+                task_unlock(current);
+        }
+        putname(filename);
+
+out:
+        return error;
+}
+
+/* Set up a thread for executing a new program. */
+void start_thread32(struct pt_regs* regs, unsigned long nip, unsigned long sp)
+{
+        set_fs(USER_DS);
+
+        /*
+         * If we exec out of a kernel thread then thread.regs will not be
+         * set. Do it now.
+         */
+        if (!current->thread.regs) {
+                unsigned long childregs = (unsigned long)current->thread_info +
+                                                THREAD_SIZE;
+                childregs -= sizeof(struct pt_regs);
+                current->thread.regs = (struct pt_regs *)childregs;
+        }
+
+        /*
+         * ELF_PLAT_INIT already clears all registers but it also sets r2.
+         * So just clear r2 here.
+         */
+        regs->gpr[2] = 0;
+
+        regs->nip = nip;
+        regs->gpr[1] = sp;
+        regs->msr = MSR_USER32;
+#ifndef CONFIG_SMP
+        if (last_task_used_math == current)
+                last_task_used_math = 0;
+#endif /* CONFIG_SMP */
+        current->thread.fpscr = 0;
+        memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
+#ifdef CONFIG_ALTIVEC
+#ifndef CONFIG_SMP
+        if (last_task_used_altivec == current)
+                last_task_used_altivec = 0;
+#endif /* CONFIG_SMP */
+        memset(current->thread.vr, 0, sizeof(current->thread.vr));
+        current->thread.vscr.u[0] = 0;
+        current->thread.vscr.u[1] = 0;
+        current->thread.vscr.u[2] = 0;
+        current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */
+        current->thread.vrsave = 0;
+        current->thread.used_vr = 0;
+#endif /* CONFIG_ALTIVEC */
+}
+
+/* Note: it is necessary to treat option as an unsigned int, 
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
+{
+        return sys_prctl((int)option,
+                         (unsigned long) arg2,
+                         (unsigned long) arg3,
+                         (unsigned long) arg4,
+                         (unsigned long) arg5);
+}
+
+/* Note: it is necessary to treat pid as an unsigned int, 
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
+{
+        struct timespec t;
+        int ret;
+        mm_segment_t old_fs = get_fs ();
+
+        /* The __user pointer cast is valid because of the set_fs() */
+        set_fs (KERNEL_DS);
+        ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t);
+        set_fs (old_fs);
+        if (put_compat_timespec(&t, interval))
+                return -EFAULT;
+        return ret;
+}
+
+asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+{
+        return sys_pciconfig_read((unsigned long) bus,
+                                  (unsigned long) dfn,
+                                  (unsigned long) off,
+                                  (unsigned long) len,
+                                  compat_ptr(ubuf));
+}
+
+asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+{
+        return sys_pciconfig_write((unsigned long) bus,
+                                   (unsigned long) dfn,
+                                   (unsigned long) off,
+                                   (unsigned long) len,
+                                   compat_ptr(ubuf));
+}
+
+#define IOBASE_BRIDGE_NUMBER    0
+#define IOBASE_MEMORY           1
+#define IOBASE_IO               2
+#define IOBASE_ISA_IO           3
+#define IOBASE_ISA_MEM          4
+
+asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
+{
+        struct pci_controller* hose;
+        struct list_head *ln;
+        struct pci_bus *bus = NULL;
+        struct device_node *hose_node;
+
+        /* Argh ! Please forgive me for that hack, but that's the
+         * simplest way to get existing XFree to not lockup on some
+         * G5 machines... So when something asks for bus 0 io base
+         * (bus 0 is HT root), we return the AGP one instead.
+         */
+#ifdef CONFIG_PPC_PMAC
+        if (systemcfg->platform == PLATFORM_POWERMAC &&
+            machine_is_compatible("MacRISC4"))
+                if (in_bus == 0)
+                        in_bus = 0xf0;
+#endif /* CONFIG_PPC_PMAC */
+
+        /* That syscall isn't quite compatible with PCI domains, but it's
+         * used on pre-domains setup. We return the first match
+         */
+
+        for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) {
+                bus = pci_bus_b(ln);
+                if (in_bus >= bus->number && in_bus < (bus->number + bus->subordinate))
+                        break;
+                bus = NULL;
+        }
+        if (bus == NULL || bus->sysdata == NULL)
+                return -ENODEV;
+
+        hose_node = (struct device_node *)bus->sysdata;
+        hose = hose_node->phb;
+
+        switch (which) {
+        case IOBASE_BRIDGE_NUMBER:
+                return (long)hose->first_busno;
+        case IOBASE_MEMORY:
+                return (long)hose->pci_mem_offset;
+        case IOBASE_IO:
+                return (long)hose->io_base_phys;
+        case IOBASE_ISA_IO:
+                return (long)isa_io_base;
+        case IOBASE_ISA_MEM:
+                return -EINVAL;
+        }
+
+        return -EOPNOTSUPP;
+}
+
+
+asmlinkage int ppc64_newuname(struct new_utsname __user * name)
+{
+        int errno = sys_newuname(name);
+
+        if (current->personality == PER_LINUX32 && !errno) {
+                if(copy_to_user(name->machine, "ppc\0\0", 8)) {
+                        errno = -EFAULT;
+                }
+        }
+        return errno;
+}
+
+asmlinkage int ppc64_personality(unsigned long personality)
+{
+        int ret;
+        if (current->personality == PER_LINUX32 && personality == PER_LINUX)
+                personality = PER_LINUX32;
+        ret = sys_personality(personality);
+        if (ret == PER_LINUX32)
+                ret = PER_LINUX;
+        return ret;
+}
+
+
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_access(const char __user * filename, u32 mode)
+{
+        return sys_access(filename, (int)mode);
+}
+
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_creat(const char __user * pathname, u32 mode)
+{
+        return sys_creat(pathname, (int)mode);
+}
+
+
+/* Note: it is necessary to treat pid and options as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
+{
+        return sys_waitpid((int)pid, stat_addr, (int)options);
+}
+
+
+/* Note: it is necessary to treat gidsetsize as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t __user *grouplist)
+{
+        return sys_getgroups((int)gidsetsize, grouplist);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getpgid(u32 pid)
+{
+        return sys_getpgid((int)pid);
+}
+
+
+/* Note: it is necessary to treat which and who as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getpriority(u32 which, u32 who)
+{
+        return sys_getpriority((int)which, (int)who);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getsid(u32 pid)
+{
+        return sys_getsid((int)pid);
+}
+
+
+/* Note: it is necessary to treat pid and sig as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_kill(u32 pid, u32 sig)
+{
+        return sys_kill((int)pid, (int)sig);
+}
+
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_mkdir(const char __user * pathname, u32 mode)
+{
+        return sys_mkdir(pathname, (int)mode);
+}
+
+long sys32_nice(u32 increment)
+{
+        /* sign extend increment */
+        return sys_nice((int)increment);
+}
+
+off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
+{
+        /* sign extend n */
+        return sys_lseek(fd, (int)offset, origin);
+}
+
+/*
+ * This is just a version for 32-bit applications which does
+ * not force O_LARGEFILE on.
+ */
+asmlinkage long sys32_open(const char __user * filename, int flags, int mode)
+{
+        char * tmp;
+        int fd, error;
+
+        tmp = getname(filename);
+        fd = PTR_ERR(tmp);
+        if (!IS_ERR(tmp)) {
+                fd = get_unused_fd();
+                if (fd >= 0) {
+                        struct file * f = filp_open(tmp, flags, mode);
+                        error = PTR_ERR(f);
+                        if (IS_ERR(f))
+                                goto out_error;
+                        fd_install(fd, f);
+                }
+out:
+                putname(tmp);
+        }
+        return fd;
+
+out_error:
+        put_unused_fd(fd);
+        fd = error;
+        goto out;
+}
+
+/* Note: it is necessary to treat bufsiz as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_readlink(const char __user * path, char __user * buf, u32 bufsiz)
+{
+        return sys_readlink(path, buf, (int)bufsiz);
+}
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_get_priority_max(u32 policy)
+{
+        return sys_sched_get_priority_max((int)policy);
+}
+
+
+/* Note: it is necessary to treat policy as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_get_priority_min(u32 policy)
+{
+        return sys_sched_get_priority_min((int)policy);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param __user *param)
+{
+        return sys_sched_getparam((int)pid, param);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_getscheduler(u32 pid)
+{
+        return sys_sched_getscheduler((int)pid);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param __user *param)
+{
+        return sys_sched_setparam((int)pid, param);
+}
+
+
+/* Note: it is necessary to treat pid and policy as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
+{
+        return sys_sched_setscheduler((int)pid, (int)policy, param);
+}
+
+
+/* Note: it is necessary to treat len as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setdomainname(char __user *name, u32 len)
+{
+        return sys_setdomainname(name, (int)len);
+}
+
+
+/* Note: it is necessary to treat gidsetsize as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setgroups(u32 gidsetsize, gid_t __user *grouplist)
+{
+        return sys_setgroups((int)gidsetsize, grouplist);
+}
+
+
+asmlinkage long sys32_sethostname(char __user *name, u32 len)
+{
+        /* sign extend len */
+        return sys_sethostname(name, (int)len);
+}
+
+
+/* Note: it is necessary to treat pid and pgid as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setpgid(u32 pid, u32 pgid)
+{
+        return sys_setpgid((int)pid, (int)pgid);
+}
+
+
+long sys32_setpriority(u32 which, u32 who, u32 niceval)
+{
+        /* sign extend which, who and niceval */
+        return sys_setpriority((int)which, (int)who, (int)niceval);
+}
+
+/* Note: it is necessary to treat newmask as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_ssetmask(u32 newmask)
+{
+        return sys_ssetmask((int) newmask);
+}
+
+asmlinkage long sys32_syslog(u32 type, char __user * buf, u32 len)
+{
+        /* sign extend len */
+        return sys_syslog(type, buf, (int)len);
+}
+
+
+/* Note: it is necessary to treat mask as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_umask(u32 mask)
+{
+        return sys_umask((int)mask);
+}
+
+#ifdef CONFIG_SYSCTL
+struct __sysctl_args32 {
+        u32 name;
+        int nlen;
+        u32 oldval;
+        u32 oldlenp;
+        u32 newval;
+        u32 newlen;
+        u32 __unused[4];
+};
+
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
+{
+        struct __sysctl_args32 tmp;
+        int error;
+        size_t oldlen;
+        size_t __user *oldlenp = NULL;
+        unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
+
+        if (copy_from_user(&tmp, args, sizeof(tmp)))
+                return -EFAULT;
+
+        if (tmp.oldval && tmp.oldlenp) {
+                /* Duh, this is ugly and might not work if sysctl_args
+                   is in read-only memory, but do_sysctl does indirectly
+                   a lot of uaccess in both directions and we'd have to
+                   basically copy the whole sysctl.c here, and
+                   glibc's __sysctl uses rw memory for the structure
+                   anyway.  */
+                oldlenp = (size_t __user *)addr;
+                if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) ||
+                    put_user(oldlen, oldlenp))
+                        return -EFAULT;
+        }
+
+        lock_kernel();
+        error = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
+                          compat_ptr(tmp.oldval), oldlenp,
+                          compat_ptr(tmp.newval), tmp.newlen);
+        unlock_kernel();
+        if (oldlenp) {
+                if (!error) {
+                        if (get_user(oldlen, oldlenp) ||
+                            put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)))
+                                error = -EFAULT;
+                }
+                copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
+        }
+        return error;
+}
+#endif
+
+asmlinkage int sys32_olduname(struct oldold_utsname __user * name)
+{
+        int error;
+        
+        if (!name)
+                return -EFAULT;
+        if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
+                return -EFAULT;
+  
+        down_read(&uts_sem);
+        error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
+        error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
+        error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
+        error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
+        error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
+        error -= __put_user(0,name->release+__OLD_UTS_LEN);
+        error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
+        error -= __put_user(0,name->version+__OLD_UTS_LEN);
+        error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
+        error = __put_user(0,name->machine+__OLD_UTS_LEN);
+        up_read(&uts_sem);
+
+        error = error ? -EFAULT : 0;
+        
+        return error;
+}
+
+unsigned long sys32_mmap2(unsigned long addr, size_t len,
+                          unsigned long prot, unsigned long flags,
+                          unsigned long fd, unsigned long pgoff)
+{
+        /* This should remain 12 even if PAGE_SIZE changes */
+        return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
+}
+
+int get_compat_timeval(struct timeval *tv, struct compat_timeval __user *ctv)
+{
+        return (!access_ok(VERIFY_READ, ctv, sizeof(*ctv)) ||
+                __get_user(tv->tv_sec, &ctv->tv_sec) ||
+                __get_user(tv->tv_usec, &ctv->tv_usec)) ? -EFAULT : 0;
+}
+
+asmlinkage long sys32_utimes(char __user *filename, struct compat_timeval __user *tvs)
+{
+        struct timeval ktvs[2], *ptr;
+
+        ptr = NULL;
+        if (tvs) {
+                if (get_compat_timeval(&ktvs[0], &tvs[0]) ||
+                    get_compat_timeval(&ktvs[1], &tvs[1]))
+                        return -EFAULT;
+                ptr = ktvs;
+        }
+
+        return do_utimes(filename, ptr);
+}
+
+long sys32_tgkill(u32 tgid, u32 pid, int sig)
+{
+        /* sign extend tgid, pid */
+        return sys_tgkill((int)tgid, (int)pid, sig);
+}
+
+/* 
+ * long long munging:
+ * The 32 bit ABI passes long longs in an odd even register pair.
+ */
+
+compat_ssize_t sys32_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
+                             u32 reg6, u32 poshi, u32 poslo)
+{
+        return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
+}
+
+compat_ssize_t sys32_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
+                              u32 reg6, u32 poshi, u32 poslo)
+{
+        return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
+}
+
+compat_ssize_t sys32_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
+{
+        return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
+}
+
+asmlinkage int sys32_truncate64(const char __user * path, u32 reg4,
+                                unsigned long high, unsigned long low)
+{
+        return sys_truncate(path, (high << 32) | low);
+}
+
+asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
+                                 unsigned long low)
+{
+        return sys_ftruncate(fd, (high << 32) | low);
+}
+
+long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
+                          size_t len)
+{
+        return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
+                                  buf, len);
+}
+
+long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
+                     size_t len, int advice)
+{
+        return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len,
+                             advice);
+}
+
+long ppc32_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
+                        u32 len_high, u32 len_low)
+{
+        return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low,
+                             (u64)len_high << 32 | len_low, advice);
+}
+
+extern asmlinkage long sys_timer_create(clockid_t, sigevent_t __user *, timer_t __user *);
+
+long ppc32_timer_create(clockid_t clock,
+                        struct compat_sigevent __user *ev32,
+                        timer_t __user *timer_id)
+{
+        sigevent_t event;
+        timer_t t;
+        long err;
+        mm_segment_t savefs;
+
+        if (ev32 == NULL)
+                return sys_timer_create(clock, NULL, timer_id);
+
+        if (get_compat_sigevent(&event, ev32))
+                return -EFAULT;
+
+        if (!access_ok(VERIFY_WRITE, timer_id, sizeof(timer_t)))
+                return -EFAULT;
+
+        savefs = get_fs();
+        set_fs(KERNEL_DS);
+        /* The __user pointer casts are valid due to the set_fs() */
+        err = sys_timer_create(clock,
+                (sigevent_t __user *) &event,
+                (timer_t __user *) &t);
+        set_fs(savefs);
+
+        if (err == 0)
+                err = __put_user(t, timer_id);
+
+        return err;
+}
+
+asmlinkage long sys32_add_key(const char __user *_type,
+                              const char __user *_description,
+                              const void __user *_payload,
+                              u32 plen,
+                              u32 ringid)
+{
+        return sys_add_key(_type, _description, _payload, plen, ringid);
+}
+
+asmlinkage long sys32_request_key(const char __user *_type,
+                                  const char __user *_description,
+                                  const char __user *_callout_info,
+                                  u32 destringid)
+{
+        return sys_request_key(_type, _description, _callout_info, destringid);
+}
+