int ttm_mem_io_lock(struct ttm_mem_type_manager *man, bool interruptible)
{
if (likely(man->io_reserve_fastpath))
return 0;
if (interruptible) {
if (sx_xlock_sig(&man->io_reserve_mutex))
return (-EINTR);
else
return (0);
}
sx_xlock(&man->io_reserve_mutex);
return 0;
}
static int
i915_gem_object_list_info(struct drm_device *dev, struct sbuf *m, void *data)
{
uintptr_t list = (uintptr_t)data;
struct list_head *head;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
size_t total_obj_size, total_gtt_size;
int count;
if (sx_xlock_sig(&dev->dev_struct_lock))
return (EINTR);
switch (list) {
case ACTIVE_LIST:
sbuf_printf(m, "Active:\n");
head = &dev_priv->mm.active_list;
break;
case INACTIVE_LIST:
sbuf_printf(m, "Inactive:\n");
head = &dev_priv->mm.inactive_list;
break;
case PINNED_LIST:
sbuf_printf(m, "Pinned:\n");
head = &dev_priv->mm.pinned_list;
break;
case FLUSHING_LIST:
sbuf_printf(m, "Flushing:\n");
head = &dev_priv->mm.flushing_list;
break;
case DEFERRED_FREE_LIST:
sbuf_printf(m, "Deferred free:\n");
head = &dev_priv->mm.deferred_free_list;
break;
default:
DRM_UNLOCK(dev);
return (EINVAL);
}
total_obj_size = total_gtt_size = count = 0;
list_for_each_entry(obj, head, mm_list) {
sbuf_printf(m, " ");
describe_obj(m, obj);
sbuf_printf(m, "\n");
total_obj_size += obj->base.size;
total_gtt_size += obj->gtt_space->size;
count++;
}
int
sblock(struct sockbuf *sb, int flags)
{
KASSERT((flags & SBL_VALID) == flags,
("sblock: flags invalid (0x%x)", flags));
if (flags & SBL_WAIT) {
if ((sb->sb_flags & SB_NOINTR) ||
(flags & SBL_NOINTR)) {
sx_xlock(&sb->sb_sx);
return (0);
}
return (sx_xlock_sig(&sb->sb_sx));
} else {
if (sx_try_xlock(&sb->sb_sx) == 0)
return (EWOULDBLOCK);
return (0);
}
}