/* drm_open_helper is called whenever a process opens /dev/drm. */
int drm_open_helper(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p,
drm_device_t *dev)
{
int m = minor(kdev);
drm_file_t *priv;
int retcode;
if (flags & O_EXCL)
return EBUSY; /* No exclusive opens */
dev->flags = flags;
DRM_DEBUG("pid = %d, minor = %d\n", DRM_CURRENTPID, m);
DRM_LOCK();
priv = drm_find_file_by_proc(dev, p);
if (priv) {
priv->refs++;
} else {
priv = malloc(sizeof(*priv), M_DRM, M_NOWAIT | M_ZERO);
if (priv == NULL) {
DRM_UNLOCK();
return DRM_ERR(ENOMEM);
}
#if __FreeBSD_version >= 500000
priv->uid = p->td_ucred->cr_svuid;
priv->pid = p->td_proc->p_pid;
#else
priv->uid = p->p_cred->p_svuid;
priv->pid = p->p_pid;
#endif
priv->refs = 1;
priv->minor = m;
priv->ioctl_count = 0;
/* for compatibility root is always authenticated */
priv->authenticated = DRM_SUSER(p);
if (dev->driver.open) {
retcode = dev->driver.open(dev, priv);
if (retcode != 0) {
free(priv, M_DRM);
DRM_UNLOCK();
return retcode;
}
}
/* first opener automatically becomes master */
priv->master = TAILQ_EMPTY(&dev->files);
TAILQ_INSERT_TAIL(&dev->files, priv, link);
}
DRM_UNLOCK();
#ifdef __FreeBSD__
kdev->si_drv1 = dev;
#endif
return 0;
}
/* drm_open_helper is called whenever a process opens /dev/drm. */
int drm_open_helper(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p,
struct drm_device *dev, struct file *fp)
{
struct drm_file *priv;
int retcode;
if (flags & O_EXCL)
return EBUSY; /* No exclusive opens */
dev->flags = flags;
DRM_DEBUG("pid = %d, device = %s\n", DRM_CURRENTPID, devtoname(kdev));
priv = kmalloc(sizeof(*priv), DRM_MEM_FILES, M_NOWAIT | M_ZERO);
if (priv == NULL) {
return ENOMEM;
}
DRM_LOCK(dev);
priv->dev = dev;
priv->uid = p->td_proc->p_ucred->cr_svuid;
priv->pid = p->td_proc->p_pid;
priv->ioctl_count = 0;
/* for compatibility root is always authenticated */
priv->authenticated = DRM_SUSER(p);
INIT_LIST_HEAD(&priv->fbs);
INIT_LIST_HEAD(&priv->event_list);
init_waitqueue_head(&priv->event_wait);
priv->event_space = 4096; /* set aside 4k for event buffer */
if (dev->driver->driver_features & DRIVER_GEM)
drm_gem_open(dev, priv);
if (dev->driver->open) {
/* shared code returns -errno */
retcode = -dev->driver->open(dev, priv);
if (retcode != 0) {
drm_free(priv, DRM_MEM_FILES);
DRM_UNLOCK(dev);
return retcode;
}
}
/* first opener automatically becomes master */
priv->master = list_empty(&dev->filelist);
list_add(&priv->lhead, &dev->filelist);
DRM_UNLOCK(dev);
kdev->si_drv1 = dev;
retcode = devfs_set_cdevpriv(fp, priv, &drm_cdevpriv_dtor);
if (retcode != 0)
drm_cdevpriv_dtor(priv);
return retcode;
}
/* drm_open_helper is called whenever a process opens /dev/drm. */
int drm_open_helper(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p,
struct drm_device *dev)
{
struct drm_file *priv;
int m = dev2unit(kdev);
int retcode;
if (flags & O_EXCL)
return EBUSY; /* No exclusive opens */
dev->flags = flags;
DRM_DEBUG("pid = %d, minor = %d\n", DRM_CURRENTPID, m);
priv = malloc(sizeof(*priv), DRM_MEM_FILES, M_NOWAIT | M_ZERO);
if (priv == NULL) {
return ENOMEM;
}
retcode = devfs_set_cdevpriv(priv, drm_close);
if (retcode != 0) {
free(priv, DRM_MEM_FILES);
return retcode;
}
DRM_LOCK();
priv->dev = dev;
priv->uid = p->td_ucred->cr_svuid;
priv->pid = p->td_proc->p_pid;
priv->minor = m;
priv->ioctl_count = 0;
/* for compatibility root is always authenticated */
priv->authenticated = DRM_SUSER(p);
if (dev->driver->open) {
/* shared code returns -errno */
retcode = -dev->driver->open(dev, priv);
if (retcode != 0) {
devfs_clear_cdevpriv();
free(priv, DRM_MEM_FILES);
DRM_UNLOCK();
return retcode;
}
}
/* first opener automatically becomes master */
priv->master = TAILQ_EMPTY(&dev->files);
TAILQ_INSERT_TAIL(&dev->files, priv, link);
DRM_UNLOCK();
kdev->si_drv1 = dev;
return 0;
}
int
i915_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_getparam_t *param = data;
int value;
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;
}
switch (param->param) {
case I915_PARAM_CHIPSET_ID:
value = dev->pci_device;
break;
case I915_PARAM_HAS_GEM:
value = 1;
break;
case I915_PARAM_NUM_FENCES_AVAIL:
value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
break;
case I915_PARAM_HAS_OVERLAY:
value = dev_priv->overlay ? 1 : 0;
break;
case I915_PARAM_HAS_PAGEFLIPPING:
value = 1;
break;
case I915_PARAM_HAS_EXECBUF2:
/* depends on GEM */
value = 1;
break;
case I915_PARAM_HAS_BSD:
value = intel_ring_initialized(&dev_priv->ring[VCS]);
break;
case I915_PARAM_HAS_BLT:
value = intel_ring_initialized(&dev_priv->ring[BCS]);
break;
case I915_PARAM_HAS_RELAXED_FENCING:
value = 1;
break;
case I915_PARAM_HAS_COHERENT_RINGS:
value = 1;
break;
case I915_PARAM_HAS_EXEC_CONSTANTS:
value = INTEL_INFO(dev)->gen >= 4;
break;
case I915_PARAM_HAS_RELAXED_DELTA:
value = 1;
break;
case I915_PARAM_HAS_GEN7_SOL_RESET:
value = 1;
break;
case I915_PARAM_HAS_LLC:
value = HAS_LLC(dev);
break;
case I915_PARAM_HAS_WAIT_TIMEOUT:
value = 1;
break;
case I915_PARAM_HAS_SEMAPHORES:
value = i915_semaphore_is_enabled(dev);
break;
case I915_PARAM_HAS_SECURE_BATCHES:
value = DRM_SUSER(curproc);
break;
case I915_PARAM_HAS_PINNED_BATCHES:
value = 1;
break;
default:
DRM_DEBUG_DRIVER("Unknown parameter %d\n",
param->param);
return -EINVAL;
}
return -copyout(&value, param->value, sizeof(int));
}
int
i915_getparam(struct inteldrm_softc *dev_priv, void *data)
{
drm_i915_getparam_t *param = data;
struct drm_device *dev = (struct drm_device *)dev_priv->drmdev;
int value;
switch (param->param) {
case I915_PARAM_CHIPSET_ID:
value = dev->pci_device;
break;
case I915_PARAM_HAS_GEM:
value = 1;
break;
case I915_PARAM_NUM_FENCES_AVAIL:
value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
break;
case I915_PARAM_HAS_EXECBUF2:
value = 1;
break;
case I915_PARAM_HAS_OVERLAY:
value = dev_priv->overlay ? 1 : 0;
break;
case I915_PARAM_HAS_PAGEFLIPPING:
value = 1;
break;
case I915_PARAM_HAS_BSD:
value = intel_ring_initialized(&dev_priv->ring[VCS]);
break;
case I915_PARAM_HAS_BLT:
value = intel_ring_initialized(&dev_priv->ring[BCS]);
break;
case I915_PARAM_HAS_RELAXED_FENCING:
#ifdef notyet
value = 1;
#else
return EINVAL;
#endif
break;
case I915_PARAM_HAS_COHERENT_RINGS:
value = 1;
break;
case I915_PARAM_HAS_EXEC_CONSTANTS:
value = INTEL_INFO(dev)->gen >= 4;
break;
case I915_PARAM_HAS_RELAXED_DELTA:
value = 1;
break;
case I915_PARAM_HAS_GEN7_SOL_RESET:
value = 1;
break;
case I915_PARAM_HAS_LLC:
value = HAS_LLC(dev);
break;
case I915_PARAM_HAS_SEMAPHORES:
value = i915_semaphore_is_enabled(dev);
break;
case I915_PARAM_HAS_SECURE_BATCHES:
value = DRM_SUSER(curproc);
break;
case I915_PARAM_HAS_PINNED_BATCHES:
value = 1;
break;
default:
DRM_DEBUG("Unknown parameter %d\n", param->param);
return (EINVAL);
}
return (copyout(&value, param->value, sizeof(int)));
}
