drm/amdgpu: add syncobj create/destroy/import/export apis
These are just wrappers using the amdgpu device handle.
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index 1901fa8..183f974 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -1328,8 +1328,61 @@
*/
const char *amdgpu_get_marketing_name(amdgpu_device_handle dev);
+/**
+ * Create kernel sync object
+ *
+ * \param dev - \c [in] device handle
+ * \param syncobj - \c [out] sync object handle
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_create_syncobj(amdgpu_device_handle dev,
+ uint32_t *syncobj);
+/**
+ * Destroy kernel sync object
+ *
+ * \param dev - \c [in] device handle
+ * \param syncobj - \c [in] sync object handle
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev,
+ uint32_t syncobj);
+
+/**
+ * Export kernel sync object to shareable fd.
+ *
+ * \param dev - \c [in] device handle
+ * \param syncobj - \c [in] sync object handle
+ * \param shared_fd - \c [out] shared file descriptor.
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
+ uint32_t syncobj,
+ int *shared_fd);
+/**
+ * Import kernel sync object from shareable fd.
+ *
+ * \param dev - \c [in] device handle
+ * \param shared_fd - \c [in] shared file descriptor.
+ * \param syncobj - \c [out] sync object handle
+ *
+ * \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);
+
#ifdef __cplusplus
}
#endif
-
#endif /* #ifdef _AMDGPU_H_ */
diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c
index 868eb7b..722fd75 100644
--- a/amdgpu/amdgpu_cs.c
+++ b/amdgpu/amdgpu_cs.c
@@ -596,3 +596,41 @@
{
return amdgpu_cs_unreference_sem(sem);
}
+
+int amdgpu_cs_create_syncobj(amdgpu_device_handle dev,
+ uint32_t *handle)
+{
+ if (NULL == dev)
+ return -EINVAL;
+
+ return drmSyncobjCreate(dev->fd, 0, handle);
+}
+
+int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev,
+ uint32_t handle)
+{
+ if (NULL == dev)
+ return -EINVAL;
+
+ return drmSyncobjDestroy(dev->fd, handle);
+}
+
+int amdgpu_cs_export_syncobj(amdgpu_device_handle dev,
+ uint32_t handle,
+ int *shared_fd)
+{
+ if (NULL == dev)
+ return -EINVAL;
+
+ return drmSyncobjHandleToFD(dev->fd, handle, shared_fd);
+}
+
+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);
+}
