drm: rename null fence to stub fence in syncobj v2

moved to front of file.
stub fence will be used by timeline syncobj as well.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/246539/

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index d17ed75..abbb22c 100644 (file)
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -56,6 +56,33 @@
 #include "drm_internal.h"
 #include <drm/drm_syncobj.h>
 
+struct drm_syncobj_stub_fence {
+       struct dma_fence base;
+       spinlock_t lock;
+};
+
+static const char *drm_syncobj_stub_fence_get_name(struct dma_fence *fence)
+{
+        return "syncobjstub";
+}
+
+static bool drm_syncobj_stub_fence_enable_signaling(struct dma_fence *fence)
+{
+    return !dma_fence_is_signaled(fence);
+}
+
+static void drm_syncobj_stub_fence_release(struct dma_fence *f)
+{
+       kfree(f);
+}
+static const struct dma_fence_ops drm_syncobj_stub_fence_ops = {
+       .get_driver_name = drm_syncobj_stub_fence_get_name,
+       .get_timeline_name = drm_syncobj_stub_fence_get_name,
+       .enable_signaling = drm_syncobj_stub_fence_enable_signaling,
+       .release = drm_syncobj_stub_fence_release,
+};
+
+
 /**
  * drm_syncobj_find - lookup and reference a sync object.
  * @file_private: drm file private pointer
@@ -172,37 +199,15 @@ void drm_syncobj_replace_fence(struct drm_syncobj *syncobj,
 }
 EXPORT_SYMBOL(drm_syncobj_replace_fence);
 
-struct drm_syncobj_null_fence {
-       struct dma_fence base;
-       spinlock_t lock;
-};
-
-static const char *drm_syncobj_null_fence_get_name(struct dma_fence *fence)
-{
-        return "syncobjnull";
-}
-
-static bool drm_syncobj_null_fence_enable_signaling(struct dma_fence *fence)
-{
-    return !dma_fence_is_signaled(fence);
-}
-
-static const struct dma_fence_ops drm_syncobj_null_fence_ops = {
-       .get_driver_name = drm_syncobj_null_fence_get_name,
-       .get_timeline_name = drm_syncobj_null_fence_get_name,
-       .enable_signaling = drm_syncobj_null_fence_enable_signaling,
-       .release = NULL,
-};
-
 static int drm_syncobj_assign_null_handle(struct drm_syncobj *syncobj)
 {
-       struct drm_syncobj_null_fence *fence;
+       struct drm_syncobj_stub_fence *fence;
        fence = kzalloc(sizeof(*fence), GFP_KERNEL);
        if (fence == NULL)
                return -ENOMEM;
 
        spin_lock_init(&fence->lock);
-       dma_fence_init(&fence->base, &drm_syncobj_null_fence_ops,
+       dma_fence_init(&fence->base, &drm_syncobj_stub_fence_ops,
                       &fence->lock, 0, 0);
        dma_fence_signal(&fence->base);