/**
* Called whenever a 32-bit process running under a 64-bit kernel
* performs an ioctl on /dev/dri/card<n>.
*
* \param filp file pointer.
* \param cmd command.
* \param arg user argument.
* \return zero on success or negative number on failure.
*/
long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
unsigned int nr = DRM_IOCTL_NR(cmd);
drm_ioctl_compat_t *fn = NULL;
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->minor->dev;
int ret;
i915_rpm_get_ioctl(dev);
if (nr < DRM_COMMAND_BASE) {
ret = drm_compat_ioctl(filp, cmd, arg);
goto out;
}
if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
if (fn != NULL)
ret = (*fn) (filp, cmd, arg);
else
ret = drm_ioctl(filp, cmd, arg);
out:
i915_rpm_put_ioctl(dev);
return ret;
}
/**
* Called whenever a 32-bit process running under a 64-bit kernel
* performs an ioctl on /dev/dri/card<n>.
*
* \param filp file pointer.
* \param cmd command.
* \param arg user argument.
* \return zero on success or negative number on failure.
*/
long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
unsigned int nr = DRM_IOCTL_NR(cmd);
drm_ioctl_compat_t *fn = NULL;
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->minor->dev;
int ret;
i915_rpm_get_ioctl(dev);
if (nr < DRM_COMMAND_BASE) {
ret = drm_compat_ioctl(filp, cmd, arg);
goto out;
}
if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
if (fn != NULL) {
ret = (*fn) (filp, cmd, arg);
} else {
#ifdef CONFIG_DRM_VXD_BYT
unsigned int nr = DRM_IOCTL_NR(cmd);
struct drm_i915_private *dev_priv = dev->dev_private;
if ((nr >= DRM_COMMAND_VXD_BASE) &&
(nr < DRM_COMMAND_VXD_BASE + 0x10)) {
BUG_ON(!dev_priv->vxd_ioctl);
ret = dev_priv->vxd_ioctl(filp, cmd, arg);
} else
#endif
{
ret = drm_ioctl(filp, cmd, arg);
}
}
out:
i915_rpm_put_ioctl(dev);
return ret;
}
