[PATCH libdrm 1/4] amdgpu: add sync_file import and export functions

["Marek Olšák" <maraeo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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

v2: update amdgpu-symbol-check
---
 amdgpu/amdgpu-symbol-check |  2 ++
 amdgpu/amdgpu.h            | 30 ++++++++++++++++++++++++++++++
 amdgpu/amdgpu_cs.c         | 20 ++++++++++++++++++++
 3 files changed, 52 insertions(+)

diff --git a/amdgpu/amdgpu-symbol-check b/amdgpu/amdgpu-symbol-check
index c5b85b5..bc9ed3f 100755
--- a/amdgpu/amdgpu-symbol-check
+++ b/amdgpu/amdgpu-symbol-check
@@ -33,20 +33,22 @@ amdgpu_cs_ctx_create
 amdgpu_cs_ctx_free
 amdgpu_cs_destroy_semaphore
 amdgpu_cs_destroy_syncobj
 amdgpu_cs_export_syncobj
 amdgpu_cs_import_syncobj
 amdgpu_cs_query_fence_status
 amdgpu_cs_query_reset_state
 amdgpu_cs_signal_semaphore
 amdgpu_cs_submit
 amdgpu_cs_submit_raw
+amdgpu_cs_syncobj_export_sync_file
+amdgpu_cs_syncobj_import_sync_file
 amdgpu_cs_wait_fences
 amdgpu_cs_wait_semaphore
 amdgpu_device_deinitialize
 amdgpu_device_initialize
 amdgpu_get_marketing_name
 amdgpu_query_buffer_size_alignment
 amdgpu_query_crtc_from_id
 amdgpu_query_firmware_version
 amdgpu_query_gds_info
 amdgpu_query_gpu_info
diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index 238b1aa..b44b9b6 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -1376,20 +1376,50 @@ int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
  *
  * \return   0 on success\n
  *          <0 - Negative POSIX Error code
  *
 */
 int amdgpu_cs_import_syncobj(amdgpu_device_handle dev,
 			     int shared_fd,
 			     uint32_t *syncobj);
 
 /**
+ *  Export kernel sync object to a sync_file.
+ *
+ * \param   dev	       - \c [in] device handle
+ * \param   syncobj    - \c [in] sync object handle
+ * \param   sync_file_fd - \c [out] sync_file file descriptor.
+ *
+ * \return   0 on success\n
+ *          <0 - Negative POSIX Error code
+ *
+ */
+int amdgpu_cs_syncobj_export_sync_file(amdgpu_device_handle dev,
+				       uint32_t syncobj,
+				       int *sync_file_fd);
+
+/**
+ *  Import kernel sync object from a sync_file.
+ *
+ * \param   dev	       - \c [in] device handle
+ * \param   syncobj    - \c [in] sync object handle
+ * \param   sync_file_fd - \c [in] sync_file file descriptor.
+ *
+ * \return   0 on success\n
+ *          <0 - Negative POSIX Error code
+ *
+ */
+int amdgpu_cs_syncobj_import_sync_file(amdgpu_device_handle dev,
+				       uint32_t syncobj,
+				       int sync_file_fd);
+
+/**
  *  Submit raw command submission to kernel
  *
  * \param   dev	       - \c [in] device handle
  * \param   context    - \c [in] context handle for context id
  * \param   bo_list_handle - \c [in] request bo list handle (0 for none)
  * \param   num_chunks - \c [in] number of CS chunks to submit
  * \param   chunks     - \c [in] array of CS chunks
  * \param   seq_no     - \c [out] output sequence number for submission.
  *
  * \return   0 on success\n
diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c
index dfba875..4a05536 100644
--- a/amdgpu/amdgpu_cs.c
+++ b/amdgpu/amdgpu_cs.c
@@ -628,20 +628,40 @@ int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
 int amdgpu_cs_import_syncobj(amdgpu_device_handle dev,
 			     int shared_fd,
 			     uint32_t *handle)
 {
 	if (NULL == dev)
 		return -EINVAL;
 
 	return drmSyncobjFDToHandle(dev->fd, shared_fd, handle);
 }
 
+int amdgpu_cs_syncobj_export_sync_file(amdgpu_device_handle dev,
+				       uint32_t syncobj,
+				       int *sync_file_fd)
+{
+	if (NULL == dev)
+		return -EINVAL;
+
+	return drmSyncobjExportSyncFile(dev->fd, syncobj, sync_file_fd);
+}
+
+int amdgpu_cs_syncobj_import_sync_file(amdgpu_device_handle dev,
+				       uint32_t syncobj,
+				       int sync_file_fd)
+{
+	if (NULL == dev)
+		return -EINVAL;
+
+	return drmSyncobjImportSyncFile(dev->fd, syncobj, sync_file_fd);
+}
+
 int amdgpu_cs_submit_raw(amdgpu_device_handle dev,
 			 amdgpu_context_handle context,
 			 amdgpu_bo_list_handle bo_list_handle,
 			 int num_chunks,
 			 struct drm_amdgpu_cs_chunk *chunks,
 			 uint64_t *seq_no)
 {
 	union drm_amdgpu_cs cs = {0};
 	uint64_t *chunk_array;
 	int i, r;
-- 
2.7.4

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