diff options
Diffstat (limited to 'drivers/cxl/cxl.h')
| -rw-r--r-- | drivers/cxl/cxl.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 89847abb7e14..ed2b0a2e80e2 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -353,18 +353,23 @@ struct cxl_switch_decoder { struct cxl_dport *target[]; }; +struct cxl_root_decoder; +typedef struct cxl_dport *(*cxl_calc_hb_fn)(struct cxl_root_decoder *cxlrd, + int pos); /** * struct cxl_root_decoder - Static platform CXL address decoder * @res: host / parent resource for region allocations * @region_id: region id for next region provisioning event * @calc_hb: which host bridge covers the n'th position by granularity + * @platform_data: platform specific configuration data * @cxlsd: base cxl switch decoder */ struct cxl_root_decoder { struct resource *res; atomic_t region_id; - struct cxl_dport *(*calc_hb)(struct cxl_root_decoder *cxlrd, int pos); + cxl_calc_hb_fn calc_hb; + void *platform_data; struct cxl_switch_decoder cxlsd; }; @@ -613,7 +618,9 @@ 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, - unsigned int nr_targets); + unsigned int nr_targets, + cxl_calc_hb_fn calc_hb); +struct cxl_dport *cxl_hb_modulo(struct cxl_root_decoder *cxlrd, int pos); 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); |