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path: root/drivers/cxl/cxl.h
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Diffstat (limited to 'drivers/cxl/cxl.h')
-rw-r--r--drivers/cxl/cxl.h11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index f46252373159..270014c0ab5c 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -432,14 +432,13 @@ struct cxl_switch_decoder {
};
struct cxl_root_decoder;
-typedef struct cxl_dport *(*cxl_calc_hb_fn)(struct cxl_root_decoder *cxlrd,
- int pos);
+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
* @region_id: region id for next region provisioning event
- * @calc_hb: which host bridge covers the n'th position by granularity
+ * @hpa_to_spa: translate CXL host-physical-address to Platform system-physical-address
* @platform_data: platform specific configuration data
* @range_lock: sync region autodiscovery by address range
* @qos_class: QoS performance class cookie
@@ -448,7 +447,7 @@ typedef struct cxl_dport *(*cxl_calc_hb_fn)(struct cxl_root_decoder *cxlrd,
struct cxl_root_decoder {
struct resource *res;
atomic_t region_id;
- cxl_calc_hb_fn calc_hb;
+ cxl_hpa_to_spa_fn hpa_to_spa;
void *platform_data;
struct mutex range_lock;
int qos_class;
@@ -774,9 +773,7 @@ bool is_root_decoder(struct device *dev);
bool is_switch_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,
- cxl_calc_hb_fn calc_hb);
-struct cxl_dport *cxl_hb_modulo(struct cxl_root_decoder *cxlrd, int pos);
+ unsigned int nr_targets);
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);