diff options
Diffstat (limited to 'drivers/cxl/cxl.h')
| -rw-r--r-- | drivers/cxl/cxl.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index e05a3e6adfdb..e0b1e2e4dfee 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -240,6 +240,18 @@ struct cxl_decoder { }; /** + * struct cxl_endpoint_decoder - Endpoint / SPA to DPA decoder + * @cxld: base cxl_decoder_object + * @dpa_res: actively claimed DPA span of this decoder + * @skip: offset into @dpa_res where @cxld.hpa_range maps + */ +struct cxl_endpoint_decoder { + struct cxl_decoder cxld; + struct resource *dpa_res; + resource_size_t skip; +}; + +/** * struct cxl_switch_decoder - Switch specific CXL HDM Decoder * @cxld: base cxl_decoder object * @target_lock: coordinate coherent reads of the target list @@ -394,6 +406,7 @@ struct cxl_dport *cxl_find_dport_by_dev(struct cxl_port *port, struct cxl_decoder *to_cxl_decoder(struct device *dev); struct cxl_root_decoder *to_cxl_root_decoder(struct device *dev); +struct cxl_endpoint_decoder *to_cxl_endpoint_decoder(struct device *dev); bool is_root_decoder(struct device *dev); bool is_endpoint_decoder(struct device *dev); struct cxl_root_decoder *cxl_root_decoder_alloc(struct cxl_port *port, @@ -401,7 +414,7 @@ struct cxl_root_decoder *cxl_root_decoder_alloc(struct cxl_port *port, struct cxl_switch_decoder *cxl_switch_decoder_alloc(struct cxl_port *port, unsigned int nr_targets); int cxl_decoder_add(struct cxl_decoder *cxld, int *target_map); -struct cxl_decoder *cxl_endpoint_decoder_alloc(struct cxl_port *port); +struct cxl_endpoint_decoder *cxl_endpoint_decoder_alloc(struct cxl_port *port); int cxl_decoder_add_locked(struct cxl_decoder *cxld, int *target_map); int cxl_decoder_autoremove(struct device *host, struct cxl_decoder *cxld); int cxl_endpoint_autoremove(struct cxl_memdev *cxlmd, struct cxl_port *endpoint); |