diff options
Diffstat (limited to 'drivers/cxl/cxlmem.h')
| -rw-r--r-- | drivers/cxl/cxlmem.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index 5cf5329e13a9..00f55f4066b9 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -90,6 +90,18 @@ struct cxl_mbox_cmd { #define CXL_CAPACITY_MULTIPLIER SZ_256M /** + * struct cxl_endpoint_dvsec_info - Cached DVSEC info + * @mem_enabled: cached value of mem_enabled in the DVSEC, PCIE_DEVICE + * @ranges: Number of active HDM ranges this device uses. + * @dvsec_range: cached attributes of the ranges in the DVSEC, PCIE_DEVICE + */ +struct cxl_endpoint_dvsec_info { + bool mem_enabled; + int ranges; + struct range dvsec_range[2]; +}; + +/** * struct cxl_dev_state - The driver device state * * cxl_dev_state represents the CXL driver/device state. It provides an @@ -118,6 +130,7 @@ struct cxl_mbox_cmd { * @next_volatile_bytes: volatile capacity change pending device reset * @next_persistent_bytes: persistent capacity change pending device reset * @component_reg_phys: register base of component registers + * @info: Cached DVSEC information about the device. * @mbox_send: @dev specific transport for transmitting mailbox commands * * See section 8.2.9.5.2 Capacity Configuration and Label Storage for @@ -149,6 +162,7 @@ struct cxl_dev_state { u64 next_persistent_bytes; resource_size_t component_reg_phys; + struct cxl_endpoint_dvsec_info info; int (*mbox_send)(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd); }; |