diff options
| -rw-r--r-- | drivers/cxl/cxl.h | 61 |
1 files changed, 18 insertions, 43 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 53927f9fa77e..9db0c402c9ce 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -75,52 +75,27 @@ static inline int cxl_hdm_decoder_count(u32 cap_hdr) #define CXLDEV_MBOX_BG_CMD_STATUS_OFFSET 0x18 #define CXLDEV_MBOX_PAYLOAD_OFFSET 0x20 -#define CXL_COMPONENT_REGS() \ - void __iomem *hdm_decoder - -#define CXL_DEVICE_REGS() \ - void __iomem *status; \ - void __iomem *mbox; \ - void __iomem *memdev - -/* See note for 'struct cxl_regs' for the rationale of this organization */ -/* - * CXL_COMPONENT_REGS - Common set of CXL Component register block base pointers - * @hdm_decoder: CXL 2.0 8.2.5.12 CXL HDM Decoder Capability Structure - */ -struct cxl_component_regs { - CXL_COMPONENT_REGS(); -}; - -/* See note for 'struct cxl_regs' for the rationale of this organization */ -/* - * CXL_DEVICE_REGS - Common set of CXL Device register block base pointers - * @status: CXL 2.0 8.2.8.3 Device Status Registers - * @mbox: CXL 2.0 8.2.8.4 Mailbox Registers - * @memdev: CXL 2.0 8.2.8.5 Memory Device Registers - */ -struct cxl_device_regs { - CXL_DEVICE_REGS(); -}; - /* - * Note, the anonymous union organization allows for per - * register-block-type helper routines, without requiring block-type - * agnostic code to include the prefix. + * Using struct_group() allows for per register-block-type helper routines, + * without requiring block-type agnostic code to include the prefix. */ struct cxl_regs { - union { - struct { - CXL_COMPONENT_REGS(); - }; - struct cxl_component_regs component; - }; - union { - struct { - CXL_DEVICE_REGS(); - }; - struct cxl_device_regs device_regs; - }; + /* + * Common set of CXL Component register block base pointers + * @hdm_decoder: CXL 2.0 8.2.5.12 CXL HDM Decoder Capability Structure + */ + struct_group_tagged(cxl_component_regs, component, + void __iomem *hdm_decoder; + ); + /* + * Common set of CXL Device register block base pointers + * @status: CXL 2.0 8.2.8.3 Device Status Registers + * @mbox: CXL 2.0 8.2.8.4 Mailbox Registers + * @memdev: CXL 2.0 8.2.8.5 Memory Device Registers + */ + struct_group_tagged(cxl_device_regs, device_regs, + void __iomem *status, *mbox, *memdev; + ); }; struct cxl_reg_map { |