[PATCH v5 14/19] drm/i915/vm_bind: Expose i915_request_await_bind()

[Niranjana Vishwanathapura]

Rename __i915_request_await_bind() as i915_request_await_bind()
and make it non-static as it will be used in execbuf3 ioctl path.

v2: add documentation

Reviewed-by: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura at intel.com>
---
 drivers/gpu/drm/i915/i915_vma.c |  8 +-------
 drivers/gpu/drm/i915/i915_vma.h | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index aa4705246993..f73955aef16a 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -1888,18 +1888,12 @@ void i915_vma_revoke_mmap(struct i915_vma *vma)
 		list_del(&vma->obj->userfault_link);
 }
 
-static int
-__i915_request_await_bind(struct i915_request *rq, struct i915_vma *vma)
-{
-	return __i915_request_await_exclusive(rq, &vma->active);
-}
-
 static int __i915_vma_move_to_active(struct i915_vma *vma, struct i915_request *rq)
 {
 	int err;
 
 	/* Wait for the vma to be bound before we start! */
-	err = __i915_request_await_bind(rq, vma);
+	err = i915_request_await_bind(rq, vma);
 	if (err)
 		return err;
 
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index 04770f8ba815..737ef310d046 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -54,6 +54,22 @@ void i915_vma_unpin_and_release(struct i915_vma **p_vma, unsigned int flags);
 /* do not reserve memory to prevent deadlocks */
 #define __EXEC_OBJECT_NO_RESERVE BIT(31)
 
+/**
+ * i915_request_await_bind() - Setup request to wait for a vma bind completion
+ * @rq: the request which should wait
+ * @vma: vma whose binding @rq should wait to complete
+ *
+ * Setup the request @rq to asynchronously wait for @vma bind to complete
+ * before starting execution.
+ *
+ * Returns 0 on success, error code on failure.
+ */
+static inline int
+i915_request_await_bind(struct i915_request *rq, struct i915_vma *vma)
+{
+	return __i915_request_await_exclusive(rq, &vma->active);
+}
+
 int __must_check _i915_vma_move_to_active(struct i915_vma *vma,
 					  struct i915_request *rq,
 					  struct dma_fence *fence,
-- 
2.21.0.rc0.32.g243a4c7e27