dma-buf: Rename struct fence to dma_fence

I plan to usurp the short name of struct fence for a core kernel struct,
and so I need to rename the specialised fence/timeline for DMA
operations to make room.

A consensus was reached in
https://lists.freedesktop.org/archives/dri-devel/2016-July/113083.html
that making clear this fence applies to DMA operations was a good thing.
Since then the patch has grown a bit as usage increases, so hopefully it
remains a good thing!

(v2...: rebase, rerun spatch)
v3: Compile on msm, spotted a manual fixup that I broke.
v4: Try again for msm, sorry Daniel

coccinelle script:
@@

@@
- struct fence
+ struct dma_fence
@@

@@
- struct fence_ops
+ struct dma_fence_ops
@@

@@
- struct fence_cb
+ struct dma_fence_cb
@@

@@
- struct fence_array
+ struct dma_fence_array
@@

@@
- enum fence_flag_bits
+ enum dma_fence_flag_bits
@@

@@
(
- fence_init
+ dma_fence_init
|
- fence_release
+ dma_fence_release
|
- fence_free
+ dma_fence_free
|
- fence_get
+ dma_fence_get
|
- fence_get_rcu
+ dma_fence_get_rcu
|
- fence_put
+ dma_fence_put
|
- fence_signal
+ dma_fence_signal
|
- fence_signal_locked
+ dma_fence_signal_locked
|
- fence_default_wait
+ dma_fence_default_wait
|
- fence_add_callback
+ dma_fence_add_callback
|
- fence_remove_callback
+ dma_fence_remove_callback
|
- fence_enable_sw_signaling
+ dma_fence_enable_sw_signaling
|
- fence_is_signaled_locked
+ dma_fence_is_signaled_locked
|
- fence_is_signaled
+ dma_fence_is_signaled
|
- fence_is_later
+ dma_fence_is_later
|
- fence_later
+ dma_fence_later
|
- fence_wait_timeout
+ dma_fence_wait_timeout
|
- fence_wait_any_timeout
+ dma_fence_wait_any_timeout
|
- fence_wait
+ dma_fence_wait
|
- fence_context_alloc
+ dma_fence_context_alloc
|
- fence_array_create
+ dma_fence_array_create
|
- to_fence_array
+ to_dma_fence_array
|
- fence_is_array
+ dma_fence_is_array
|
- trace_fence_emit
+ trace_dma_fence_emit
|
- FENCE_TRACE
+ DMA_FENCE_TRACE
|
- FENCE_WARN
+ DMA_FENCE_WARN
|
- FENCE_ERR
+ DMA_FENCE_ERR
)
 (
 ...
 )

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk

5 files changed, 22 insertions, 22 deletions

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index ae59080d63d1..ec1ebdcfe80b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -82,7 +82,7 @@ struct virtio_gpu_fence_driver {
 };
 
 struct virtio_gpu_fence {
-	struct fence f;
+	struct dma_fence f;
 	struct virtio_gpu_fence_driver *drv;
 	struct list_head node;
 	uint64_t seq;
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c
index f3f70fa8a4c7..23353521f903 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fence.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fence.c
@@ -26,22 +26,22 @@
 #include <drm/drmP.h>
 #include "virtgpu_drv.h"
 
-static const char *virtio_get_driver_name(struct fence *f)
+static const char *virtio_get_driver_name(struct dma_fence *f)
 {
 	return "virtio_gpu";
 }
 
-static const char *virtio_get_timeline_name(struct fence *f)
+static const char *virtio_get_timeline_name(struct dma_fence *f)
 {
 	return "controlq";
 }
 
-static bool virtio_enable_signaling(struct fence *f)
+static bool virtio_enable_signaling(struct dma_fence *f)
 {
 	return true;
 }
 
-static bool virtio_signaled(struct fence *f)
+static bool virtio_signaled(struct dma_fence *f)
 {
 	struct virtio_gpu_fence *fence = to_virtio_fence(f);
 
@@ -50,26 +50,26 @@ static bool virtio_signaled(struct fence *f)
 	return false;
 }
 
-static void virtio_fence_value_str(struct fence *f, char *str, int size)
+static void virtio_fence_value_str(struct dma_fence *f, char *str, int size)
 {
 	struct virtio_gpu_fence *fence = to_virtio_fence(f);
 
 	snprintf(str, size, "%llu", fence->seq);
 }
 
-static void virtio_timeline_value_str(struct fence *f, char *str, int size)
+static void virtio_timeline_value_str(struct dma_fence *f, char *str, int size)
 {
 	struct virtio_gpu_fence *fence = to_virtio_fence(f);
 
 	snprintf(str, size, "%llu", (u64)atomic64_read(&fence->drv->last_seq));
 }
 
-static const struct fence_ops virtio_fence_ops = {
+static const struct dma_fence_ops virtio_fence_ops = {
 	.get_driver_name     = virtio_get_driver_name,
 	.get_timeline_name   = virtio_get_timeline_name,
 	.enable_signaling    = virtio_enable_signaling,
 	.signaled            = virtio_signaled,
-	.wait                = fence_default_wait,
+	.wait                = dma_fence_default_wait,
 	.fence_value_str     = virtio_fence_value_str,
 	.timeline_value_str  = virtio_timeline_value_str,
 };
@@ -88,9 +88,9 @@ int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
 	spin_lock_irqsave(&drv->lock, irq_flags);
 	(*fence)->drv = drv;
 	(*fence)->seq = ++drv->sync_seq;
-	fence_init(&(*fence)->f, &virtio_fence_ops, &drv->lock,
-		   drv->context, (*fence)->seq);
-	fence_get(&(*fence)->f);
+	dma_fence_init(&(*fence)->f, &virtio_fence_ops, &drv->lock,
+		       drv->context, (*fence)->seq);
+	dma_fence_get(&(*fence)->f);
 	list_add_tail(&(*fence)->node, &drv->fences);
 	spin_unlock_irqrestore(&drv->lock, irq_flags);
 
@@ -111,9 +111,9 @@ void virtio_gpu_fence_event_process(struct virtio_gpu_device *vgdev,
 	list_for_each_entry_safe(fence, tmp, &drv->fences, node) {
 		if (last_seq < fence->seq)
 			continue;
-		fence_signal_locked(&fence->f);
+		dma_fence_signal_locked(&fence->f);
 		list_del(&fence->node);
-		fence_put(&fence->f);
+		dma_fence_put(&fence->f);
 	}
 	spin_unlock_irqrestore(&drv->lock, irq_flags);
 }
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 818478b4c4f0..61f3a963af95 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -172,7 +172,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 	/* fence the command bo */
 	virtio_gpu_unref_list(&validate_list);
 	drm_free_large(buflist);
-	fence_put(&fence->f);
+	dma_fence_put(&fence->f);
 	return 0;
 
 out_unresv:
@@ -298,7 +298,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 		drm_gem_object_release(obj);
 		if (vgdev->has_virgl_3d) {
 			virtio_gpu_unref_list(&validate_list);
-			fence_put(&fence->f);
+			dma_fence_put(&fence->f);
 		}
 		return ret;
 	}
@@ -309,13 +309,13 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 
 	if (vgdev->has_virgl_3d) {
 		virtio_gpu_unref_list(&validate_list);
-		fence_put(&fence->f);
+		dma_fence_put(&fence->f);
 	}
 	return 0;
 fail_unref:
 	if (vgdev->has_virgl_3d) {
 		virtio_gpu_unref_list(&validate_list);
-		fence_put(&fence->f);
+		dma_fence_put(&fence->f);
 	}
 //fail_obj:
 //	drm_gem_object_handle_unreference_unlocked(obj);
@@ -383,7 +383,7 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
 	reservation_object_add_excl_fence(qobj->tbo.resv,
 					  &fence->f);
 
-	fence_put(&fence->f);
+	dma_fence_put(&fence->f);
 out_unres:
 	virtio_gpu_object_unreserve(qobj);
 out:
@@ -431,7 +431,7 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
 			 args->level, &box, &fence);
 		reservation_object_add_excl_fence(qobj->tbo.resv,
 						  &fence->f);
-		fence_put(&fence->f);
+		dma_fence_put(&fence->f);
 	}
 
 out_unres:
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 036b0fbae0fb..1235519853f4 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -159,7 +159,7 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
 	virtio_gpu_init_vq(&vgdev->ctrlq, virtio_gpu_dequeue_ctrl_func);
 	virtio_gpu_init_vq(&vgdev->cursorq, virtio_gpu_dequeue_cursor_func);
 
-	vgdev->fence_drv.context = fence_context_alloc(1);
+	vgdev->fence_drv.context = dma_fence_context_alloc(1);
 	spin_lock_init(&vgdev->fence_drv.lock);
 	INIT_LIST_HEAD(&vgdev->fence_drv.fences);
 	INIT_LIST_HEAD(&vgdev->cap_cache);
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index ba28c0f6f28a..cb75f0663ba0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -152,7 +152,7 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 		if (!ret) {
 			reservation_object_add_excl_fence(bo->tbo.resv,
 							  &fence->f);
-			fence_put(&fence->f);
+			dma_fence_put(&fence->f);
 			fence = NULL;
 			virtio_gpu_object_unreserve(bo);
 			virtio_gpu_object_wait(bo, false);