diff options
Diffstat (limited to 'drivers/cxl/cxl.h')
| -rw-r--r-- | drivers/cxl/cxl.h | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 3f1695c96abc..847e37be42c4 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 <linux/range.h> extern const struct nvdimm_security_ops *cxl_security_ops; @@ -423,6 +424,7 @@ typedef u64 (*cxl_hpa_to_spa_fn)(struct cxl_root_decoder *cxlrd, u64 hpa); /** * struct cxl_root_decoder - Static platform CXL address decoder * @res: host / parent resource for region allocations + * @cache_size: extended linear cache size if exists, otherwise zero. * @region_id: region id for next region provisioning event * @hpa_to_spa: translate CXL host-physical-address to Platform system-physical-address * @platform_data: platform specific configuration data @@ -432,6 +434,7 @@ typedef u64 (*cxl_hpa_to_spa_fn)(struct cxl_root_decoder *cxlrd, u64 hpa); */ struct cxl_root_decoder { struct resource *res; + resource_size_t cache_size; atomic_t region_id; cxl_hpa_to_spa_fn hpa_to_spa; void *platform_data; @@ -469,7 +472,7 @@ enum cxl_config_state { * @nr_targets: number of targets * @cache_size: extended linear cache size if exists, otherwise zero. * - * State transitions are protected by the cxl_region_rwsem + * State transitions are protected by cxl_rwsem.region */ struct cxl_region_params { enum cxl_config_state state; @@ -513,7 +516,7 @@ enum cxl_partition_mode { * @flags: Region state flags * @params: active + config params for the region * @coord: QoS access coordinates for the region - * @memory_notifier: notifier for setting the access coordinates to node + * @node_notifier: notifier for setting the access coordinates to node * @adist_notifier: notifier for calculating the abstract distance of node */ struct cxl_region { @@ -526,7 +529,7 @@ struct cxl_region { unsigned long flags; struct cxl_region_params params; struct access_coordinate coord[ACCESS_COORDINATE_MAX]; - struct notifier_block memory_notifier; + struct notifier_block node_notifier; struct notifier_block adist_notifier; }; @@ -815,7 +818,7 @@ int cxl_dvsec_rr_decode(struct cxl_dev_state *cxlds, bool is_cxl_region(struct device *dev); -extern struct bus_type cxl_bus_type; +extern const struct bus_type cxl_bus_type; struct cxl_driver { const char *name; @@ -912,15 +915,4 @@ bool cxl_endpoint_decoder_reset_detected(struct cxl_port *port); #endif u16 cxl_gpf_get_dvsec(struct device *dev); - -static inline struct rw_semaphore *rwsem_read_intr_acquire(struct rw_semaphore *rwsem) -{ - if (down_read_interruptible(rwsem)) - return NULL; - - return rwsem; -} - -DEFINE_FREE(rwsem_read_release, struct rw_semaphore *, if (_T) up_read(_T)) - #endif /* __CXL_H__ */ |