1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Intel MIC Platform Software Stack (MPSS)
 4 *
 5 * Copyright(c) 2013 Intel Corporation.
 6 *
 7 * Intel MIC driver.
 8 */
 9#ifndef __MIC_DEV_H__
10#define __MIC_DEV_H__
11
12/* The maximum number of MIC devices supported in a single host system. */
13#define MIC_MAX_NUM_DEVS 128
14
15/**
16 * enum mic_hw_family - The hardware family to which a device belongs.
17 */
18enum mic_hw_family {
19	MIC_FAMILY_X100 = 0,
20	MIC_FAMILY_X200,
21	MIC_FAMILY_UNKNOWN,
22	MIC_FAMILY_LAST
23};
24
25/**
26 * struct mic_mw - MIC memory window
27 *
28 * @pa: Base physical address.
29 * @va: Base ioremap'd virtual address.
30 * @len: Size of the memory window.
31 */
32struct mic_mw {
33	phys_addr_t pa;
34	void __iomem *va;
35	resource_size_t len;
36};
37
38/*
39 * Scratch pad register offsets used by the host to communicate
40 * device page DMA address to the card.
41 */
42#define MIC_DPLO_SPAD 14
43#define MIC_DPHI_SPAD 15
44
45/*
46 * These values are supposed to be in the config_change field of the
47 * device page when the host sends a config change interrupt to the card.
48 */
49#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
50#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
51
52/* Maximum number of DMA channels */
53#define MIC_MAX_DMA_CHAN 4
54
55#endif