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

1 files changed, 9 insertions, 9 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_request.h b/drivers/gpu/drm/i915/i915_gem_request.h
index 974bd7bcc801..bceeaa3a5193 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.h
+++ b/drivers/gpu/drm/i915/i915_gem_request.h
@@ -25,7 +25,7 @@
 #ifndef I915_GEM_REQUEST_H
 #define I915_GEM_REQUEST_H
 
-#include <linux/fence.h>
+#include <linux/dma-fence.h>
 
 #include "i915_gem.h"
 #include "i915_sw_fence.h"
@@ -62,7 +62,7 @@ struct intel_signal_node {
  * The requests are reference counted.
  */
 struct drm_i915_gem_request {
-	struct fence fence;
+	struct dma_fence fence;
 	spinlock_t lock;
 
 	/** On Which ring this request was generated */
@@ -145,9 +145,9 @@ struct drm_i915_gem_request {
 	struct list_head execlist_link;
 };
 
-extern const struct fence_ops i915_fence_ops;
+extern const struct dma_fence_ops i915_fence_ops;
 
-static inline bool fence_is_i915(struct fence *fence)
+static inline bool fence_is_i915(struct dma_fence *fence)
 {
 	return fence->ops == &i915_fence_ops;
 }
@@ -172,7 +172,7 @@ i915_gem_request_get_engine(struct drm_i915_gem_request *req)
 }
 
 static inline struct drm_i915_gem_request *
-to_request(struct fence *fence)
+to_request(struct dma_fence *fence)
 {
 	/* We assume that NULL fence/request are interoperable */
 	BUILD_BUG_ON(offsetof(struct drm_i915_gem_request, fence) != 0);
@@ -183,19 +183,19 @@ to_request(struct fence *fence)
 static inline struct drm_i915_gem_request *
 i915_gem_request_get(struct drm_i915_gem_request *req)
 {
-	return to_request(fence_get(&req->fence));
+	return to_request(dma_fence_get(&req->fence));
 }
 
 static inline struct drm_i915_gem_request *
 i915_gem_request_get_rcu(struct drm_i915_gem_request *req)
 {
-	return to_request(fence_get_rcu(&req->fence));
+	return to_request(dma_fence_get_rcu(&req->fence));
 }
 
 static inline void
 i915_gem_request_put(struct drm_i915_gem_request *req)
 {
-	fence_put(&req->fence);
+	dma_fence_put(&req->fence);
 }
 
 static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
@@ -497,7 +497,7 @@ __i915_gem_active_get_rcu(const struct i915_gem_active *active)
 		 * compiler.
 		 *
 		 * The atomic operation at the heart of
-		 * i915_gem_request_get_rcu(), see fence_get_rcu(), is
+		 * i915_gem_request_get_rcu(), see dma_fence_get_rcu(), is
 		 * atomic_inc_not_zero() which is only a full memory barrier
 		 * when successful. That is, if i915_gem_request_get_rcu()
 		 * returns the request (and so with the reference counted