diff options
Diffstat (limited to 'drivers/misc/mic/scif/scif_fd.c')
| -rw-r--r-- | drivers/misc/mic/scif/scif_fd.c | 169 |
1 files changed, 164 insertions, 5 deletions
diff --git a/drivers/misc/mic/scif/scif_fd.c b/drivers/misc/mic/scif/scif_fd.c index 24e47f73e45a..f7e826142a72 100644 --- a/drivers/misc/mic/scif/scif_fd.c +++ b/drivers/misc/mic/scif/scif_fd.c @@ -34,6 +34,13 @@ static int scif_fdclose(struct inode *inode, struct file *f) return scif_close(priv); } +static int scif_fdmmap(struct file *f, struct vm_area_struct *vma) +{ + struct scif_endpt *priv = f->private_data; + + return scif_mmap(vma, priv); +} + static unsigned int scif_fdpoll(struct file *f, poll_table *wait) { struct scif_endpt *priv = f->private_data; @@ -147,12 +154,12 @@ static long scif_fdioctl(struct file *f, unsigned int cmd, unsigned long arg) * Add to the list of user mode eps where the second half * of the accept is not yet completed. */ - spin_lock(&scif_info.eplock); + mutex_lock(&scif_info.eplock); list_add_tail(&((*ep)->miacceptlist), &scif_info.uaccept); list_add_tail(&((*ep)->liacceptlist), &priv->li_accept); (*ep)->listenep = priv; priv->acceptcnt++; - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); return 0; } @@ -170,7 +177,7 @@ static long scif_fdioctl(struct file *f, unsigned int cmd, unsigned long arg) return -EFAULT; /* Remove form the user accept queue */ - spin_lock(&scif_info.eplock); + mutex_lock(&scif_info.eplock); list_for_each_safe(pos, tmpq, &scif_info.uaccept) { tmpep = list_entry(pos, struct scif_endpt, miacceptlist); @@ -182,7 +189,7 @@ static long scif_fdioctl(struct file *f, unsigned int cmd, unsigned long arg) } if (!fep) { - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); return -ENOENT; } @@ -197,7 +204,7 @@ static long scif_fdioctl(struct file *f, unsigned int cmd, unsigned long arg) } } - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); /* Free the resources automatically created from the open. */ scif_anon_inode_fput(priv); @@ -298,6 +305,157 @@ getnodes_err1: getnodes_err2: return err; } + case SCIF_REG: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_reg reg; + off_t ret; + + if (copy_from_user(®, argp, sizeof(reg))) { + err = -EFAULT; + goto reg_err; + } + if (reg.flags & SCIF_MAP_KERNEL) { + err = -EINVAL; + goto reg_err; + } + ret = scif_register(priv, (void *)reg.addr, reg.len, + reg.offset, reg.prot, reg.flags); + if (ret < 0) { + err = (int)ret; + goto reg_err; + } + + if (copy_to_user(&((struct scifioctl_reg __user *)argp) + ->out_offset, &ret, sizeof(reg.out_offset))) { + err = -EFAULT; + goto reg_err; + } + err = 0; +reg_err: + scif_err_debug(err, "scif_register"); + return err; + } + case SCIF_UNREG: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_unreg unreg; + + if (copy_from_user(&unreg, argp, sizeof(unreg))) { + err = -EFAULT; + goto unreg_err; + } + err = scif_unregister(priv, unreg.offset, unreg.len); +unreg_err: + scif_err_debug(err, "scif_unregister"); + return err; + } + case SCIF_READFROM: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_copy copy; + + if (copy_from_user(©, argp, sizeof(copy))) { + err = -EFAULT; + goto readfrom_err; + } + err = scif_readfrom(priv, copy.loffset, copy.len, copy.roffset, + copy.flags); +readfrom_err: + scif_err_debug(err, "scif_readfrom"); + return err; + } + case SCIF_WRITETO: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_copy copy; + + if (copy_from_user(©, argp, sizeof(copy))) { + err = -EFAULT; + goto writeto_err; + } + err = scif_writeto(priv, copy.loffset, copy.len, copy.roffset, + copy.flags); +writeto_err: + scif_err_debug(err, "scif_writeto"); + return err; + } + case SCIF_VREADFROM: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_copy copy; + + if (copy_from_user(©, argp, sizeof(copy))) { + err = -EFAULT; + goto vreadfrom_err; + } + err = scif_vreadfrom(priv, (void __force *)copy.addr, copy.len, + copy.roffset, copy.flags); +vreadfrom_err: + scif_err_debug(err, "scif_vreadfrom"); + return err; + } + case SCIF_VWRITETO: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_copy copy; + + if (copy_from_user(©, argp, sizeof(copy))) { + err = -EFAULT; + goto vwriteto_err; + } + err = scif_vwriteto(priv, (void __force *)copy.addr, copy.len, + copy.roffset, copy.flags); +vwriteto_err: + scif_err_debug(err, "scif_vwriteto"); + return err; + } + case SCIF_FENCE_MARK: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_fence_mark mark; + int tmp_mark = 0; + + if (copy_from_user(&mark, argp, sizeof(mark))) { + err = -EFAULT; + goto fence_mark_err; + } + err = scif_fence_mark(priv, mark.flags, &tmp_mark); + if (err) + goto fence_mark_err; + if (copy_to_user((void __user *)mark.mark, &tmp_mark, + sizeof(tmp_mark))) { + err = -EFAULT; + goto fence_mark_err; + } +fence_mark_err: + scif_err_debug(err, "scif_fence_mark"); + return err; + } + case SCIF_FENCE_WAIT: + { + struct scif_endpt *priv = f->private_data; + + err = scif_fence_wait(priv, arg); + scif_err_debug(err, "scif_fence_wait"); + return err; + } + case SCIF_FENCE_SIGNAL: + { + struct scif_endpt *priv = f->private_data; + struct scifioctl_fence_signal signal; + + if (copy_from_user(&signal, argp, sizeof(signal))) { + err = -EFAULT; + goto fence_signal_err; + } + + err = scif_fence_signal(priv, signal.loff, signal.lval, + signal.roff, signal.rval, signal.flags); +fence_signal_err: + scif_err_debug(err, "scif_fence_signal"); + return err; + } } return -EINVAL; } @@ -306,6 +464,7 @@ const struct file_operations scif_fops = { .open = scif_fdopen, .release = scif_fdclose, .unlocked_ioctl = scif_fdioctl, + .mmap = scif_fdmmap, .poll = scif_fdpoll, .flush = scif_fdflush, .owner = THIS_MODULE, |