+#define PCI_CXL_RL_BLOCK1_LO 0x0c
+
+/* PCIe CXL Designated Vendor-Specific Capabilities for Global Persistent Flush */
+#define PCI_CXL_GPF_DEV_LEN 0x10
+#define PCI_CXL_GPF_DEV_PHASE2_DUR 0x0a /* GPF Phase 2 Duration Register */
+#define PCI_CXL_GPF_DEV_PHASE2_POW 0x0c /* GPF Phase 2 Power Register */
+#define PCI_CXL_GPF_DEV_1US 0x0
+#define PCI_CXL_GPF_DEV_10US 0x1
+#define PCI_CXL_GPF_DEV_100US 0x2
+#define PCI_CXL_GPF_DEV_1MS 0x3
+#define PCI_CXL_GPF_DEV_10MS 0x4
+#define PCI_CXL_GPF_DEV_100MS 0x5
+#define PCI_CXL_GPF_DEV_1S 0x6
+#define PCI_CXL_GPF_DEV_10S 0x7
+
+/* PCIe CXL Designated Vendor-Specific Capabilities for Flex Bus Port */
+#define PCI_CXL_FB_LEN 0x20
+#define PCI_CXL_FB_PORT_CAP 0x0a /* CXL Flex Bus Port Capability Register */
+#define PCI_CXL_FB_CAP_CACHE 0x0001 /* CXL.cache Capable */
+#define PCI_CXL_FB_CAP_IO 0x0002 /* CXL.io Capable */
+#define PCI_CXL_FB_CAP_MEM 0x0004 /* CXL.mem Capable */
+#define PCI_CXL_FB_CAP_68B_FLIT 0x0020 /* CXL 68B Flit and VH Capable */
+#define PCI_CXL_FB_CAP_MULT_LOG_DEV 0x0040 /* CXL Multi-Logical Device Capable */
+#define PCI_CXL_FB_CAP_256B_FLIT 0x2000 /* CXL Latency Optimized 256B Flit Capable */
+#define PCI_CXL_FB_CAP_PBR_FLIT 0x4000 /* CXL PBR Flit Capable */
+#define PCI_CXL_FB_PORT_CTRL 0x0c /* CXL Flex Bus Port Control Register */
+#define PCI_CXL_FB_CTRL_CACHE 0x0001 /* CXL.cache Enable */
+#define PCI_CXL_FB_CTRL_IO 0x0002 /* CXL.io Enable */
+#define PCI_CXL_FB_CTRL_MEM 0x0004 /* CXL.mem Enable */
+#define PCI_CXL_FB_CTRL_SYNC_HDR_BYP 0x0008 /* CXL Sync Header Bypass Enable */
+#define PCI_CXL_FB_CTRL_DRFT_BUF 0x0010 /* Drift Buffer Enable */
+#define PCI_CXL_FB_CTRL_68B_FLIT 0x0020 /* CXL 68B Flit and VH Enable */
+#define PCI_CXL_FB_CTRL_MULT_LOG_DEV 0x0040 /* CXL Multi Logical Device Enable */
+#define PCI_CXL_FB_CTRL_RCD 0x0080 /* Disable RCD Training */
+#define PCI_CXL_FB_CTRL_RETIMER1 0x0100 /* Retimer1 Present */
+#define PCI_CXL_FB_CTRL_RETIMER2 0x0200 /* Retimer2 Present */
+#define PCI_CXL_FB_CTRL_256B_FLIT 0x2000 /* CXL Latency Optimized 256B Flit Enable */
+#define PCI_CXL_FB_CTRL_PBR_FLIT 0x4000 /* CXL PBR Flit Enable */
+#define PCI_CXL_FB_PORT_STATUS 0x0e /* CXL Flex Bus Port Status Register */
+#define PCI_CXL_FB_STAT_CACHE 0x0001 /* CXL.cache Enabled */
+#define PCI_CXL_FB_STAT_IO 0x0002 /* CXL.io Enabled */
+#define PCI_CXL_FB_STAT_MEM 0x0004 /* CXL.mem Enabled */
+#define PCI_CXL_FB_STAT_SYNC_HDR_BYP 0x0008 /* CXL Sync Header Bypass Enabled */
+#define PCI_CXL_FB_STAT_DRFT_BUF 0x0010 /* Drift Buffer Enabled */
+#define PCI_CXL_FB_STAT_68B_FLIT 0x0020 /* CXL 68B Flit and VH Enabled */
+#define PCI_CXL_FB_STAT_MULT_LOG_DEV 0x0040 /* CXL Multi Logical Device Enabled */
+#define PCI_CXL_FB_STAT_256B_FLIT 0x2000 /* CXL Latency Optimized 256B Flit Enabled */
+#define PCI_CXL_FB_STAT_PBR_FLIT 0x4000 /* CXL PBR Flit Enabled */
+#define PCI_CXL_FB_MOD_TS_DATA 0x10 /* CXL Flex Bus Port Received Modified TS Data Phase1 Register */
+#define PCI_CXL_FB_PORT_CAP2 0x14 /* CXL Flex Bus Port Capability2 Register */
+#define PCI_CXL_FB_CAP2_NOP_HINT 0x01 /* NOP Hint Capable */
+#define PCI_CXL_FB_PORT_CTRL2 0x18 /* CXL Flex Bus Port Control2 Register */
+#define PCI_CXL_FB_CTRL2_NOP_HINT 0x01 /* NOP Hint Enable */
+#define PCI_CXL_FB_PORT_STATUS2 0x1c /* CXL Flex Bus Port Status2 Register */