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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-only */
2/* Copyright(c) 2020 Intel Corporation. All rights reserved. */
3#ifndef __CXL_PCI_H__
4#define __CXL_PCI_H__
5
6#define CXL_MEMORY_PROGIF 0x10
7
8/*
9 * See section 8.1 Configuration Space Registers in the CXL 2.0
10 * Specification
11 */
12#define PCI_DVSEC_HEADER1_LENGTH_MASK GENMASK(31, 20)
13#define PCI_DVSEC_VENDOR_ID_CXL 0x1E98
14#define PCI_DVSEC_ID_CXL 0x0
15
16#define PCI_DVSEC_ID_CXL_REGLOC_OFFSET 0x8
17#define PCI_DVSEC_ID_CXL_REGLOC_BLOCK1_OFFSET 0xC
18
19/* BAR Indicator Register (BIR) */
20#define CXL_REGLOC_BIR_MASK GENMASK(2, 0)
21
22/* Register Block Identifier (RBI) */
23#define CXL_REGLOC_RBI_MASK GENMASK(15, 8)
24#define CXL_REGLOC_RBI_EMPTY 0
25#define CXL_REGLOC_RBI_COMPONENT 1
26#define CXL_REGLOC_RBI_VIRT 2
27#define CXL_REGLOC_RBI_MEMDEV 3
28
29#define CXL_REGLOC_ADDR_MASK GENMASK(31, 16)
30
31#endif /* __CXL_PCI_H__ */