diff --git a/CL/cl_ext.h b/CL/cl_ext.h
index 4692fa1d..3015f46f 100644
--- a/CL/cl_ext.h
+++ b/CL/cl_ext.h
@@ -694,6 +694,46 @@ typedef struct _cl_name_version_khr
 #define CL_DEVICE_NODE_MASK_KHR     0x106E
 
 
+/***************************************************************
+* cl_khr_pci_bus_info
+***************************************************************/
+#define cl_khr_pci_bus_info 1
+
+typedef struct _cl_device_pci_bus_info_khr {
+    cl_uint pci_domain;
+    cl_uint pci_bus;
+    cl_uint pci_device;
+    cl_uint pci_function;
+} cl_device_pci_bus_info_khr;
+
+/* cl_device_info */
+#define CL_DEVICE_PCI_BUS_INFO_KHR                          0x410F
+
+
+/***************************************************************
+* cl_khr_suggested_local_work_size
+***************************************************************/
+#define cl_khr_suggested_local_work_size 1
+
+extern CL_API_ENTRY cl_int CL_API_CALL
+clGetKernelSuggestedLocalWorkSizeKHR(
+    cl_command_queue command_queue,
+    cl_kernel kernel,
+    cl_uint work_dim,
+    const size_t* global_work_offset,
+    const size_t* global_work_size,
+    size_t* suggested_local_work_size) CL_API_SUFFIX__VERSION_3_0;
+
+typedef cl_int (CL_API_CALL *
+clGetKernelSuggestedLocalWorkSizeKHR_fn)(
+    cl_command_queue command_queue,
+    cl_kernel kernel,
+    cl_uint work_dim,
+    const size_t* global_work_offset,
+    const size_t* global_work_size,
+    size_t* suggested_local_work_size) CL_API_SUFFIX__VERSION_3_0;
+
+
 /**********************************
  * cl_arm_import_memory extension *
  **********************************/