diff options
Diffstat (limited to 'drivers/cxl/cxl.h')
| -rw-r--r-- | drivers/cxl/cxl.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index a6f8e7097ea2..5da2163ca45f 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -4,6 +4,7 @@ #ifndef __CXL_H__ #define __CXL_H__ +#include <linux/libnvdimm.h> #include <linux/bitfield.h> #include <linux/bitops.h> #include <linux/io.h> @@ -202,6 +203,23 @@ struct cxl_decoder { struct cxl_dport *target[]; }; + +enum cxl_nvdimm_brige_state { + CXL_NVB_NEW, + CXL_NVB_DEAD, + CXL_NVB_ONLINE, + CXL_NVB_OFFLINE, +}; + +struct cxl_nvdimm_bridge { + struct device dev; + struct cxl_port *port; + struct nvdimm_bus *nvdimm_bus; + struct nvdimm_bus_descriptor nd_desc; + struct work_struct state_work; + enum cxl_nvdimm_brige_state state; +}; + /** * struct cxl_port - logical collection of upstream port devices and * downstream port devices to construct a CXL memory @@ -247,6 +265,7 @@ int cxl_add_dport(struct cxl_port *port, struct device *dport, int port_id, resource_size_t component_reg_phys); struct cxl_decoder *to_cxl_decoder(struct device *dev); +bool is_root_decoder(struct device *dev); struct cxl_decoder * devm_cxl_add_decoder(struct device *host, struct cxl_port *port, int nr_targets, resource_size_t base, resource_size_t len, @@ -287,7 +306,12 @@ int __cxl_driver_register(struct cxl_driver *cxl_drv, struct module *owner, #define cxl_driver_register(x) __cxl_driver_register(x, THIS_MODULE, KBUILD_MODNAME) void cxl_driver_unregister(struct cxl_driver *cxl_drv); +#define CXL_DEVICE_NVDIMM_BRIDGE 1 + #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); #endif /* __CXL_H__ */ |