[RFC PATCH v2 08/20] cxl: Move cxl_driver related bits to be usable by external drivers

[Dave Jiang <dave.jiang@intel.com>]

Move the code related to cxl_driver to allow external drivers such as
cxl_fwctl to utilize the cxl_bus.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 drivers/cxl/cxl.h | 32 +-------------------------------
 include/cxl/cxl.h | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 31 deletions(-)
 create mode 100644 include/cxl/cxl.h

diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index 5406e3ab3d4a..18e78b2c3612 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -11,6 +11,7 @@
 #include <linux/log2.h>
 #include <linux/node.h>
 #include <linux/io.h>
+#include <cxl/cxl.h>
 
 extern const struct nvdimm_security_ops *cxl_security_ops;
 
@@ -819,37 +820,6 @@ bool is_cxl_region(struct device *dev);
 
 extern struct bus_type cxl_bus_type;
 
-struct cxl_driver {
-	const char *name;
-	int (*probe)(struct device *dev);
-	void (*remove)(struct device *dev);
-	struct device_driver drv;
-	int id;
-};
-
-#define to_cxl_drv(__drv)	container_of_const(__drv, struct cxl_driver, drv)
-
-int __cxl_driver_register(struct cxl_driver *cxl_drv, struct module *owner,
-			  const char *modname);
-#define cxl_driver_register(x) __cxl_driver_register(x, THIS_MODULE, KBUILD_MODNAME)
-void cxl_driver_unregister(struct cxl_driver *cxl_drv);
-
-#define module_cxl_driver(__cxl_driver) \
-	module_driver(__cxl_driver, cxl_driver_register, cxl_driver_unregister)
-
-#define CXL_DEVICE_NVDIMM_BRIDGE	1
-#define CXL_DEVICE_NVDIMM		2
-#define CXL_DEVICE_PORT			3
-#define CXL_DEVICE_ROOT			4
-#define CXL_DEVICE_MEMORY_EXPANDER	5
-#define CXL_DEVICE_REGION		6
-#define CXL_DEVICE_PMEM_REGION		7
-#define CXL_DEVICE_DAX_REGION		8
-#define CXL_DEVICE_PMU			9
-
-#define MODULE_ALIAS_CXL(type) MODULE_ALIAS("cxl:t" __stringify(type) "*")
-#define CXL_MODALIAS_FMT "cxl:t%d"
-
 struct cxl_nvdimm_bridge *to_cxl_nvdimm_bridge(struct device *dev);
 struct cxl_nvdimm_bridge *devm_cxl_add_nvdimm_bridge(struct device *host,
 						     struct cxl_port *port);
diff --git a/include/cxl/cxl.h b/include/cxl/cxl.h
new file mode 100644
index 000000000000..07a2983275a0
--- /dev/null
+++ b/include/cxl/cxl.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright(c) 2024 Intel Corporation. */
+#ifndef __CXL_GLOBAL_H__
+#define __CXL_GLOBAL_H__
+
+struct cxl_driver {
+	const char *name;
+	int (*probe)(struct device *dev);
+	void (*remove)(struct device *dev);
+	struct device_driver drv;
+	int id;
+};
+
+#define to_cxl_drv(__drv)      container_of_const(__drv, struct cxl_driver, drv)
+
+int __cxl_driver_register(struct cxl_driver *cxl_drv, struct module *owner,
+			  const char *modname);
+#define cxl_driver_register(x) __cxl_driver_register(x, THIS_MODULE, KBUILD_MODNAME)
+void cxl_driver_unregister(struct cxl_driver *cxl_drv);
+
+#define module_cxl_driver(__cxl_driver) \
+	module_driver(__cxl_driver, cxl_driver_register, cxl_driver_unregister)
+
+#define CXL_DEVICE_NVDIMM_BRIDGE	1
+#define CXL_DEVICE_NVDIMM		2
+#define CXL_DEVICE_PORT			3
+#define CXL_DEVICE_ROOT			4
+#define CXL_DEVICE_MEMORY_EXPANDER	5
+#define CXL_DEVICE_REGION		6
+#define CXL_DEVICE_PMEM_REGION		7
+#define CXL_DEVICE_DAX_REGION		8
+#define CXL_DEVICE_PMU			9
+
+#define MODULE_ALIAS_CXL(type) MODULE_ALIAS("cxl:t" __stringify(type) "*")
+#define CXL_MODALIAS_FMT "cxl:t%d"
+
+#endif
-- 
2.47.0