drm/ttm: cleanup most of fence ioctl split out

3 files changed, 331 insertions, 2 deletions

diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 0ee5062b..adba8f98 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -117,7 +117,7 @@ static drm_ioctl_desc_t drm_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = {drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
 
 	[DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = {drm_wait_vblank, 0},
-	[DRM_IOCTL_NR(DRM_IOCTL_FENCE)] = {drm_fence_ioctl, DRM_AUTH},
+
 	[DRM_IOCTL_NR(DRM_IOCTL_BUFOBJ)] = {drm_bo_ioctl, DRM_AUTH},
 
 	[DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW)] = {drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
@@ -131,6 +131,17 @@ static drm_ioctl_desc_t drm_ioctls[] = {
 					     DRM_AUTH },
 	[DRM_IOCTL_NR(DRM_IOCTL_MM_UNLOCK)] = {drm_mm_unlock_ioctl, 
 					     DRM_AUTH },
+
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_CREATE)] = {drm_fence_create_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_DESTROY)] = {drm_fence_destroy_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_REFERENCE)] = {drm_fence_reference_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_UNREFERENCE)] = {drm_fence_unreference_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_SIGNALED)] = {drm_fence_signaled_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_FLUSH)] = {drm_fence_flush_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_WAIT)] = {drm_fence_wait_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_EMIT)] = {drm_fence_emit_ioctl, DRM_AUTH},
+	[DRM_IOCTL_NR(DRM_IOCTL_FENCE_BUFFERS)] = {drm_fence_buffers_ioctl, DRM_AUTH},
+
 };
 
 #define DRM_CORE_IOCTL_COUNT	ARRAY_SIZE( drm_ioctls )
diff --git a/linux-core/drm_fence.c b/linux-core/drm_fence.c
index ce161dc3..fe11e87b 100644
--- a/linux-core/drm_fence.c
+++ b/linux-core/drm_fence.c
@@ -659,3 +659,313 @@ int drm_fence_ioctl(DRM_IOCTL_ARGS)
 	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
 	return ret;
 }
+
+int drm_fence_create_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	if (arg.flags & DRM_FENCE_FLAG_EMIT)
+		LOCK_TEST_WITH_RETURN(dev, filp);
+	ret = drm_fence_object_create(dev, arg.class,
+				      arg.type, arg.flags, &fence);
+	if (ret)
+		return ret;
+	ret = drm_fence_add_user_object(priv, fence,
+					arg.flags &
+					DRM_FENCE_FLAG_SHAREABLE);
+	if (ret) {
+		drm_fence_usage_deref_unlocked(dev, fence);
+		return ret;
+	}
+	
+	/*
+	 * usage > 0. No need to lock dev->struct_mutex;
+	 */
+	
+	atomic_inc(&fence->usage);
+	arg.handle = fence->base.hash.key;
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
+
+int drm_fence_destroy_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_user_object_t *uo;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	mutex_lock(&dev->struct_mutex);
+	uo = drm_lookup_user_object(priv, arg.handle);
+	if (!uo || (uo->type != drm_fence_type) || uo->owner != priv) {
+		mutex_unlock(&dev->struct_mutex);
+		return -EINVAL;
+	}
+	ret = drm_remove_user_object(priv, uo);
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
+
+int drm_fence_reference_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	drm_user_object_t *uo;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+	ret = drm_user_object_ref(priv, arg.handle, drm_fence_type, &uo);
+	if (ret)
+		return ret;
+	fence = drm_lookup_fence_object(priv, arg.handle);
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
+
+
+int drm_fence_unreference_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+	return drm_user_object_unref(priv, arg.handle, drm_fence_type);
+}
+
+int drm_fence_signaled_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	fence = drm_lookup_fence_object(priv, arg.handle);
+	if (!fence)
+		return -EINVAL;
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
+
+int drm_fence_flush_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	fence = drm_lookup_fence_object(priv, arg.handle);
+	if (!fence)
+		return -EINVAL;
+	ret = drm_fence_object_flush(dev, fence, arg.type);
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
+
+
+int drm_fence_wait_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	fence = drm_lookup_fence_object(priv, arg.handle);
+	if (!fence)
+		return -EINVAL;
+	ret = drm_fence_object_wait(dev, fence,
+				    arg.flags & DRM_FENCE_FLAG_WAIT_LAZY,
+				    0, arg.type);
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
+
+
+int drm_fence_emit_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	LOCK_TEST_WITH_RETURN(dev, filp);
+	fence = drm_lookup_fence_object(priv, arg.handle);
+	if (!fence)
+		return -EINVAL;
+	ret = drm_fence_object_emit(dev, fence, arg.flags, arg.class,
+				    arg.type);
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
+
+int drm_fence_buffers_ioctl(DRM_IOCTL_ARGS)
+{
+	DRM_DEVICE;
+	int ret;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_arg_t arg;
+	drm_fence_object_t *fence;
+	unsigned long flags;
+	ret = 0;
+
+	if (!fm->initialized) {
+		DRM_ERROR("The DRM driver does not support fencing.\n");
+		return -EINVAL;
+	}
+
+	DRM_COPY_FROM_USER_IOCTL(arg, (void __user *)data, sizeof(arg));
+
+	if (!dev->bm.initialized) {
+		DRM_ERROR("Buffer object manager is not initialized\n");
+		return -EINVAL;
+	}
+	LOCK_TEST_WITH_RETURN(dev, filp);
+	ret = drm_fence_buffer_objects(priv, NULL, arg.flags,
+				       NULL, &fence);
+	if (ret)
+		return ret;
+	ret = drm_fence_add_user_object(priv, fence,
+					arg.flags &
+					DRM_FENCE_FLAG_SHAREABLE);
+	if (ret)
+		return ret;
+	atomic_inc(&fence->usage);
+	arg.handle = fence->base.hash.key;
+
+	read_lock_irqsave(&fm->lock, flags);
+	arg.class = fence->class;
+	arg.type = fence->type;
+	arg.signaled = fence->signaled;
+	read_unlock_irqrestore(&fm->lock, flags);
+	drm_fence_usage_deref_unlocked(dev, fence);
+
+	DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
+	return ret;
+}
diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h
index 7f9c8c37..9576f28a 100644
--- a/linux-core/drm_objects.h
+++ b/linux-core/drm_objects.h
@@ -211,8 +211,16 @@ extern int drm_fence_object_create(struct drm_device *dev, uint32_t type,
 				   drm_fence_object_t ** c_fence);
 extern int drm_fence_add_user_object(drm_file_t * priv,
 				     drm_fence_object_t * fence, int shareable);
-extern int drm_fence_ioctl(DRM_IOCTL_ARGS);
 
+extern int drm_fence_create_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_destroy_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_reference_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_unreference_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_signaled_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_flush_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_wait_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_emit_ioctl(DRM_IOCTL_ARGS);
+extern int drm_fence_buffers_ioctl(DRM_IOCTL_ARGS);
 /**************************************************
  *TTMs
  */