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, 21 insertions, 20 deletions

diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c b/drivers/gpu/drm/i915/i915_sw_fence.c
index 1e5cbc585ca2..8185002d7ec8 100644
--- a/drivers/gpu/drm/i915/i915_sw_fence.c
+++ b/drivers/gpu/drm/i915/i915_sw_fence.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/slab.h>
-#include <linux/fence.h>
+#include <linux/dma-fence.h>
 #include <linux/reservation.h>
 
 #include "i915_sw_fence.h"
@@ -226,49 +226,50 @@ int i915_sw_fence_await_sw_fence(struct i915_sw_fence *fence,
 	return pending;
 }
 
-struct dma_fence_cb {
-	struct fence_cb base;
+struct i915_sw_dma_fence_cb {
+	struct dma_fence_cb base;
 	struct i915_sw_fence *fence;
-	struct fence *dma;
+	struct dma_fence *dma;
 	struct timer_list timer;
 };
 
 static void timer_i915_sw_fence_wake(unsigned long data)
 {
-	struct dma_fence_cb *cb = (struct dma_fence_cb *)data;
+	struct i915_sw_dma_fence_cb *cb = (struct i915_sw_dma_fence_cb *)data;
 
 	printk(KERN_WARNING "asynchronous wait on fence %s:%s:%x timed out\n",
 	       cb->dma->ops->get_driver_name(cb->dma),
 	       cb->dma->ops->get_timeline_name(cb->dma),
 	       cb->dma->seqno);
-	fence_put(cb->dma);
+	dma_fence_put(cb->dma);
 	cb->dma = NULL;
 
 	i915_sw_fence_commit(cb->fence);
 	cb->timer.function = NULL;
 }
 
-static void dma_i915_sw_fence_wake(struct fence *dma, struct fence_cb *data)
+static void dma_i915_sw_fence_wake(struct dma_fence *dma,
+				   struct dma_fence_cb *data)
 {
-	struct dma_fence_cb *cb = container_of(data, typeof(*cb), base);
+	struct i915_sw_dma_fence_cb *cb = container_of(data, typeof(*cb), base);
 
 	del_timer_sync(&cb->timer);
 	if (cb->timer.function)
 		i915_sw_fence_commit(cb->fence);
-	fence_put(cb->dma);
+	dma_fence_put(cb->dma);
 
 	kfree(cb);
 }
 
 int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
-				  struct fence *dma,
+				  struct dma_fence *dma,
 				  unsigned long timeout,
 				  gfp_t gfp)
 {
-	struct dma_fence_cb *cb;
+	struct i915_sw_dma_fence_cb *cb;
 	int ret;
 
-	if (fence_is_signaled(dma))
+	if (dma_fence_is_signaled(dma))
 		return 0;
 
 	cb = kmalloc(sizeof(*cb), gfp);
@@ -276,7 +277,7 @@ int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
 		if (!gfpflags_allow_blocking(gfp))
 			return -ENOMEM;
 
-		return fence_wait(dma, false);
+		return dma_fence_wait(dma, false);
 	}
 
 	cb->fence = i915_sw_fence_get(fence);
@@ -287,11 +288,11 @@ int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
 		      timer_i915_sw_fence_wake, (unsigned long)cb,
 		      TIMER_IRQSAFE);
 	if (timeout) {
-		cb->dma = fence_get(dma);
+		cb->dma = dma_fence_get(dma);
 		mod_timer(&cb->timer, round_jiffies_up(jiffies + timeout));
 	}
 
-	ret = fence_add_callback(dma, &cb->base, dma_i915_sw_fence_wake);
+	ret = dma_fence_add_callback(dma, &cb->base, dma_i915_sw_fence_wake);
 	if (ret == 0) {
 		ret = 1;
 	} else {
@@ -305,16 +306,16 @@ int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
 
 int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
 				    struct reservation_object *resv,
-				    const struct fence_ops *exclude,
+				    const struct dma_fence_ops *exclude,
 				    bool write,
 				    unsigned long timeout,
 				    gfp_t gfp)
 {
-	struct fence *excl;
+	struct dma_fence *excl;
 	int ret = 0, pending;
 
 	if (write) {
-		struct fence **shared;
+		struct dma_fence **shared;
 		unsigned int count, i;
 
 		ret = reservation_object_get_fences_rcu(resv,
@@ -339,7 +340,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
 		}
 
 		for (i = 0; i < count; i++)
-			fence_put(shared[i]);
+			dma_fence_put(shared[i]);
 		kfree(shared);
 	} else {
 		excl = reservation_object_get_excl_rcu(resv);
@@ -356,7 +357,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
 			ret |= pending;
 	}
 
-	fence_put(excl);
+	dma_fence_put(excl);
 
 	return ret;
 }