+/**
+ * VA mapping/unmapping for a buffer object or PRT region.
+ *
+ * This is not a simple drop-in extension for amdgpu_bo_va_op; instead, all
+ * parameters are treated "raw", i.e. size is not automatically aligned, and
+ * all flags must be specified explicitly.
+ *
+ * \param dev - \c [in] device handle
+ * \param bo - \c [in] BO handle (may be NULL)
+ * \param offset - \c [in] Start offset to map
+ * \param size - \c [in] Size to map
+ * \param addr - \c [in] Start virtual address.
+ * \param flags - \c [in] Supported flags for mapping/unmapping
+ * \param ops - \c [in] AMDGPU_VA_OP_MAP or AMDGPU_VA_OP_UNMAP
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+
+int amdgpu_bo_va_op_raw(amdgpu_device_handle dev,
+ amdgpu_bo_handle bo,
+ uint64_t offset,
+ uint64_t size,
+ uint64_t addr,
+ uint64_t flags,
+ uint32_t ops);
+
+/**
+ * create semaphore
+ *
+ * \param sem - \c [out] semaphore handle
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_create_semaphore(amdgpu_semaphore_handle *sem);
+
+/**
+ * signal semaphore
+ *
+ * \param context - \c [in] GPU Context
+ * \param ip_type - \c [in] Hardware IP block type = AMDGPU_HW_IP_*
+ * \param ip_instance - \c [in] Index of the IP block of the same type
+ * \param ring - \c [in] Specify ring index of the IP
+ * \param sem - \c [in] semaphore handle
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_signal_semaphore(amdgpu_context_handle ctx,
+ uint32_t ip_type,
+ uint32_t ip_instance,
+ uint32_t ring,
+ amdgpu_semaphore_handle sem);
+
+/**
+ * wait semaphore
+ *
+ * \param context - \c [in] GPU Context
+ * \param ip_type - \c [in] Hardware IP block type = AMDGPU_HW_IP_*
+ * \param ip_instance - \c [in] Index of the IP block of the same type
+ * \param ring - \c [in] Specify ring index of the IP
+ * \param sem - \c [in] semaphore handle
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_wait_semaphore(amdgpu_context_handle ctx,
+ uint32_t ip_type,
+ uint32_t ip_instance,
+ uint32_t ring,
+ amdgpu_semaphore_handle sem);
+
+/**
+ * destroy semaphore
+ *
+ * \param sem - \c [in] semaphore handle
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+int amdgpu_cs_destroy_semaphore(amdgpu_semaphore_handle sem);
+
+/**
+ * Get the ASIC marketing name
+ *
+ * \param dev - \c [in] Device handle. See #amdgpu_device_initialize()
+ *
+ * \return the constant string of the marketing name
+ * "NULL" means the ASIC is not found
+*/
+const char *amdgpu_get_marketing_name(amdgpu_device_handle dev);
+
+#ifdef __cplusplus
+}
+#endif
+