*
* Copyright (c) 1997--2010 Martin Mares <mj@ucw.cz>
*
- * Can be freely distributed and used under the terms of the GNU GPL.
+ * Can be freely distributed and used under the terms of the GNU GPL v2+
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
*/
/*
#define PCI_EXT_CAP_ID_LMR 0x27 /* Lane Margining at Receiver */
#define PCI_EXT_CAP_ID_HIER_ID 0x28 /* Hierarchy ID */
#define PCI_EXT_CAP_ID_NPEM 0x29 /* Native PCIe Enclosure Management */
+#define PCI_EXT_CAP_ID_32GT 0x2a /* Physical Layer 32.0 GT/s */
#define PCI_EXT_CAP_ID_DOE 0x2e /* Data Object Exchange */
/*** Definitions of capabilities ***/
#define PCI_EXP_DEVCTL2_ARI 0x0020 /* ARI Forwarding */
#define PCI_EXP_DEVCTL2_ATOMICOP_REQUESTER_EN 0x0040 /* AtomicOp RequesterEnable */
#define PCI_EXP_DEVCTL2_ATOMICOP_EGRESS_BLOCK 0x0080 /* AtomicOp Egress Blocking */
+#define PCI_EXP_DEVCTL2_IDO_REQ_EN 0x0100 /* Allow IDO for requests */
+#define PCI_EXP_DEVCTL2_IDO_CMP_EN 0x0200 /* Allow IDO for completions */
#define PCI_EXP_DEVCTL2_LTR 0x0400 /* LTR enabled */
+#define PCI_EXP_DEVCTL2_EPR_REQ 0x0800 /* Emergency Power Reduction Request */
#define PCI_EXP_DEVCTL2_10BIT_TAG_REQ 0x1000 /* 10 Bit Tag Requester enabled */
#define PCI_EXP_DEVCTL2_OBFF(x) (((x) >> 13) & 3) /* OBFF enabled */
+#define PCI_EXP_DEVCTL2_EE_TLP_BLK 0x8000 /* End-End TLP Prefix Blocking */
#define PCI_EXP_DEVSTA2 0x2a /* Device Status */
#define PCI_EXP_LNKCAP2 0x2c /* Link Capabilities */
#define PCI_EXP_LNKCAP2_SPEED(x) (((x) >> 1) & 0x7f)
#define PCI_DVSEC_ID_CXL 0 /* Designated Vendor-Specific ID for Intel CXL */
/* PCIe CXL Designated Vendor-Specific Capabilities for Devices: Control, Status */
-#define PCI_CXL_DEV_LEN 0x38 /* CXL Device DVSEC Length */
+#define PCI_CXL_DEV_LEN 0x3c /* CXL Device DVSEC Length */
#define PCI_CXL_DEV_CAP 0x0a /* CXL Capability Register */
#define PCI_CXL_DEV_CAP_CACHE 0x0001 /* CXL.cache Protocol Support */
#define PCI_CXL_DEV_CAP_IO 0x0002 /* CXL.io Protocol Support */
#define PCI_CXL_DEV_CTRL_VIRAL 0x4000 /* CXL Viral Handling Enable */
#define PCI_CXL_DEV_STATUS 0x0e /* CXL Status Register */
#define PCI_CXL_DEV_STATUS_VIRAL 0x4000 /* CXL Viral Handling Status */
+#define PCI_CXL_DEV_CTRL2 0x10 /* CXL Control Register 2 */
+#define PCI_CXL_DEV_CTRL2_DISABLE_CACHING 0x0001
+#define PCI_CXL_DEV_CTRL2_INIT_WB_INVAL 0x0002
+#define PCI_CXL_DEV_CTRL2_INIT_CXL_RST 0x0003
+#define PCI_CXL_DEV_CTRL2_INIT_CXL_RST_CLR_EN 0x0004
+#define PCI_CXL_DEV_CTRL2_INIT_CXL_HDM_STATE_HOTRST 0x0005
#define PCI_CXL_DEV_STATUS2 0x12
#define PCI_CXL_DEV_STATUS_CACHE_INV 0x0001
#define PCI_CXL_DEV_STATUS_RC 0x0002 /* Device Reset Complete */
#define PCI_CXL_DEV_RANGE2_SIZE_LO 0x2c
#define PCI_CXL_DEV_RANGE2_BASE_HI 0x30
#define PCI_CXL_DEV_RANGE2_BASE_LO 0x34
+/* From Rev2 */
+#define PCI_CXL_DEV_CAP3 0x38
+#define PCI_CXL_DEV_CAP3_HDM_STATE_RST_COLD 0x0001
+#define PCI_CXL_DEV_CAP3_HDM_STATE_RST_WARM 0x0002
+#define PCI_CXL_DEV_CAP3_HDM_STATE_RST_HOT 0x0003
+#define PCI_CXL_DEV_CAP3_HDM_STATE_RST_HOT_CFG 0x0004
+
/* PCIe CXL 2.0 Designated Vendor-Specific Capabilities for Ports */
#define PCI_CXL_PORT_EXT_LEN 0x28 /* CXL Extensions DVSEC for Ports Length */
#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 */
+#define PCI_CXL_FB_NEXT_UNSUPPORTED 0x20
/* PCIe CXL Designated Vendor-Specific Capabilities for Multi-Logical Device */
#define PCI_CXL_MLD_LEN 0x10
#define PCI_PRI_CTRL_ENABLE 0x01 /* Enable */
#define PCI_PRI_CTRL_RESET 0x02 /* Reset */
#define PCI_PRI_STATUS 0x06 /* PRI status register */
-#define PCI_PRI_STATUS_RF 0x001 /* Response Failure */
-#define PCI_PRI_STATUS_UPRGI 0x002 /* Unexpected PRG index */
-#define PCI_PRI_STATUS_STOPPED 0x100 /* PRI Stopped */
+#define PCI_PRI_STATUS_RF 0x0001 /* Response Failure */
+#define PCI_PRI_STATUS_UPRGI 0x0002 /* Unexpected PRG index */
+#define PCI_PRI_STATUS_STOPPED 0x0100 /* PRI Stopped */
+#define PCI_PRI_STATUS_PASID 0x8000 /* PASID required in PRG response */
#define PCI_PRI_MAX_REQ 0x08 /* PRI max reqs supported */
#define PCI_PRI_ALLOC_REQ 0x0c /* PRI max reqs allowed */
#define PCI_DOE_STS 0xC /* DOE Status Register */
#define PCI_DOE_STS_BUSY 0x1 /* DOE Busy */
#define PCI_DOE_STS_INT 0x2 /* DOE Interrupt Status */
-#define PCI_DOE_STS_ERROR 0x3 /* DOE Error */
+#define PCI_DOE_STS_ERROR 0x4 /* DOE Error */
#define PCI_DOE_STS_OBJECT_READY 0x80000000 /* Data Object Ready */
/*