diff options
Diffstat (limited to 'drivers/cxl/core/core.h')
-rw-r--r-- | drivers/cxl/core/core.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/cxl/core/core.h b/drivers/cxl/core/core.h new file mode 100644 index 000000000..8e5f3d843 --- /dev/null +++ b/drivers/cxl/core/core.h @@ -0,0 +1,90 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright(c) 2020 Intel Corporation. */ + +#ifndef __CXL_CORE_H__ +#define __CXL_CORE_H__ + +extern const struct device_type cxl_nvdimm_bridge_type; +extern const struct device_type cxl_nvdimm_type; +extern const struct device_type cxl_pmu_type; + +extern struct attribute_group cxl_base_attribute_group; + +#ifdef CONFIG_CXL_REGION +extern struct device_attribute dev_attr_create_pmem_region; +extern struct device_attribute dev_attr_create_ram_region; +extern struct device_attribute dev_attr_delete_region; +extern struct device_attribute dev_attr_region; +extern const struct device_type cxl_pmem_region_type; +extern const struct device_type cxl_dax_region_type; +extern const struct device_type cxl_region_type; +void cxl_decoder_kill_region(struct cxl_endpoint_decoder *cxled); +#define CXL_REGION_ATTR(x) (&dev_attr_##x.attr) +#define CXL_REGION_TYPE(x) (&cxl_region_type) +#define SET_CXL_REGION_ATTR(x) (&dev_attr_##x.attr), +#define CXL_PMEM_REGION_TYPE(x) (&cxl_pmem_region_type) +#define CXL_DAX_REGION_TYPE(x) (&cxl_dax_region_type) +int cxl_region_init(void); +void cxl_region_exit(void); +int cxl_get_poison_by_endpoint(struct cxl_port *port); +#else +static inline int cxl_get_poison_by_endpoint(struct cxl_port *port) +{ + return 0; +} +static inline void cxl_decoder_kill_region(struct cxl_endpoint_decoder *cxled) +{ +} +static inline int cxl_region_init(void) +{ + return 0; +} +static inline void cxl_region_exit(void) +{ +} +#define CXL_REGION_ATTR(x) NULL +#define CXL_REGION_TYPE(x) NULL +#define SET_CXL_REGION_ATTR(x) +#define CXL_PMEM_REGION_TYPE(x) NULL +#define CXL_DAX_REGION_TYPE(x) NULL +#endif + +struct cxl_send_command; +struct cxl_mem_query_commands; +int cxl_query_cmd(struct cxl_memdev *cxlmd, + struct cxl_mem_query_commands __user *q); +int cxl_send_cmd(struct cxl_memdev *cxlmd, struct cxl_send_command __user *s); +void __iomem *devm_cxl_iomap_block(struct device *dev, resource_size_t addr, + resource_size_t length); + +struct dentry *cxl_debugfs_create_dir(const char *dir); +int cxl_dpa_set_mode(struct cxl_endpoint_decoder *cxled, + enum cxl_decoder_mode mode); +int cxl_dpa_alloc(struct cxl_endpoint_decoder *cxled, unsigned long long size); +int cxl_dpa_free(struct cxl_endpoint_decoder *cxled); +resource_size_t cxl_dpa_size(struct cxl_endpoint_decoder *cxled); +resource_size_t cxl_dpa_resource_start(struct cxl_endpoint_decoder *cxled); + +enum cxl_rcrb { + CXL_RCRB_DOWNSTREAM, + CXL_RCRB_UPSTREAM, +}; +struct cxl_rcrb_info; +resource_size_t __rcrb_to_component(struct device *dev, + struct cxl_rcrb_info *ri, + enum cxl_rcrb which); + +extern struct rw_semaphore cxl_dpa_rwsem; +extern struct rw_semaphore cxl_region_rwsem; + +int cxl_memdev_init(void); +void cxl_memdev_exit(void); +void cxl_mbox_init(void); + +enum cxl_poison_trace_type { + CXL_POISON_TRACE_LIST, + CXL_POISON_TRACE_INJECT, + CXL_POISON_TRACE_CLEAR, +}; + +#endif /* __CXL_CORE_H__ */ |