[PATCH libdrm 3/4] amdgpu: add amdgpu_cs_syncobj_wait

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 amdgpu/amdgpu.h    | 20 ++++++++++++++++++++
 amdgpu/amdgpu_cs.c | 12 ++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index b44b9b6..979acfc 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -1354,6 +1354,26 @@ int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev,
 			      uint32_t syncobj);
 
 /**
+ *  Wait for one or all sync objects to signal.
+ *
+ * \param   dev	    - \c [in] self-explanatory
+ * \param   handles - \c [in] array of sync object handles
+ * \param   num_handles - \c [in] self-explanatory
+ * \param   timeout_nsec - \c [in] self-explanatory
+ * \param   flags   - \c [in] a bitmask of DRM_SYNCOBJ_WAIT_FLAGS_*
+ * \param   first_signaled - \c [in] self-explanatory
+ *
+ * \return   0 on success\n
+ *          -ETIME - Timeout
+ *          <0 - Negative POSIX Error code
+ *
+ */
+int amdgpu_cs_syncobj_wait(amdgpu_device_handle dev,
+			   uint32_t *handles, unsigned num_handles,
+			   int64_t timeout_nsec, unsigned flags,
+			   uint32_t *first_signaled);
+
+/**
  *  Export kernel sync object to shareable fd.
  *
  * \param   dev	       - \c [in] device handle
diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c
index 4a05536..2cde7bf 100644
--- a/amdgpu/amdgpu_cs.c
+++ b/amdgpu/amdgpu_cs.c
@@ -615,6 +615,18 @@ int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev,
 	return drmSyncobjDestroy(dev->fd, handle);
 }
 
+int amdgpu_cs_syncobj_wait(amdgpu_device_handle dev,
+			   uint32_t *handles, unsigned num_handles,
+			   int64_t timeout_nsec, unsigned flags,
+			   uint32_t *first_signaled)
+{
+	if (NULL == dev)
+		return -EINVAL;
+
+	return drmSyncobjWait(dev->fd, handles, num_handles, timeout_nsec,
+			      flags, first_signaled);
+}
+
 int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
 			     uint32_t handle,
 			     int *shared_fd)
-- 
2.7.4