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-rw-r--r--linux-core/drm_drv.c13
-rw-r--r--linux-core/drm_fence.c310
-rw-r--r--linux-core/drm_objects.h10
3 files changed, 331 insertions, 2 deletions
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 55a3435b..6b98f2c1 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 e05b46cc..17338da5 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
*/
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 16:12:35 +0000