[PATCH v2 05/22] drm/xe: Export to_xe_hw_fence

[Matthew Brost <matthew.brost@intel.com>]

Allow other layers to operate on hardware fences.

v2:
 - Fix kernel doc (CI)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/xe/xe_hw_fence.c | 10 +++++++---
 drivers/gpu/drm/xe/xe_hw_fence.h |  3 +++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_hw_fence.c b/drivers/gpu/drm/xe/xe_hw_fence.c
index 5995bf095843..2e7f52bac980 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence.c
+++ b/drivers/gpu/drm/xe/xe_hw_fence.c
@@ -138,8 +138,6 @@ void xe_hw_fence_ctx_finish(struct xe_hw_fence_ctx *ctx)
 {
 }
 
-static struct xe_hw_fence *to_xe_hw_fence(struct dma_fence *fence);
-
 static struct xe_hw_fence_irq *xe_hw_fence_irq(struct xe_hw_fence *fence)
 {
 	return container_of(fence->dma.lock, struct xe_hw_fence_irq, lock);
@@ -200,7 +198,13 @@ static const struct dma_fence_ops xe_hw_fence_ops = {
 	.release = xe_hw_fence_release,
 };
 
-static struct xe_hw_fence *to_xe_hw_fence(struct dma_fence *fence)
+/**
+ * to_xe_hw_fence() - Convert dma-fence to Xe hardware fence
+ * @fence: dma-fence object
+ *
+ * Return: struct xe_hw_fence or NULL
+ */
+struct xe_hw_fence *to_xe_hw_fence(struct dma_fence *fence)
 {
 	if (XE_WARN_ON(fence->ops != &xe_hw_fence_ops))
 		return NULL;
diff --git a/drivers/gpu/drm/xe/xe_hw_fence.h b/drivers/gpu/drm/xe/xe_hw_fence.h
index 7a8678c881d8..4d5756681279 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence.h
+++ b/drivers/gpu/drm/xe/xe_hw_fence.h
@@ -30,4 +30,7 @@ void xe_hw_fence_free(struct dma_fence *fence);
 
 void xe_hw_fence_init(struct dma_fence *fence, struct xe_hw_fence_ctx *ctx,
 		      struct xe_exec_queue *q, struct iosys_map seqno_map);
+
+struct xe_hw_fence *to_xe_hw_fence(struct dma_fence *fence);
+
 #endif
-- 
2.34.1