blob: 11ce2cf997597aca75c7a580433b9b6cedcc8f97 [file] [log] [blame]
Xiao Guangrong857a2622018-06-30 08:53:34 +08001/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Header file for FPGA Accelerated Function Unit (AFU) Driver
4 *
5 * Copyright (C) 2017-2018 Intel Corporation, Inc.
6 *
7 * Authors:
8 * Wu Hao <hao.wu@intel.com>
9 * Xiao Guangrong <guangrong.xiao@linux.intel.com>
10 * Joseph Grecco <joe.grecco@intel.com>
11 * Enno Luebbers <enno.luebbers@intel.com>
12 * Tim Whisonant <tim.whisonant@intel.com>
13 * Ananda Ravuri <ananda.ravuri@intel.com>
14 * Henry Mitchel <henry.mitchel@intel.com>
15 */
16
17#ifndef __DFL_AFU_H
18#define __DFL_AFU_H
19
20#include <linux/mm.h>
21
22#include "dfl.h"
23
24/**
25 * struct dfl_afu_mmio_region - afu mmio region data structure
26 *
27 * @index: region index.
28 * @flags: region flags (access permission).
29 * @size: region size.
30 * @offset: region offset from start of the device fd.
31 * @phys: region's physical address.
32 * @node: node to add to afu feature dev's region list.
33 */
34struct dfl_afu_mmio_region {
35 u32 index;
36 u32 flags;
37 u64 size;
38 u64 offset;
39 u64 phys;
40 struct list_head node;
41};
42
43/**
44 * struct dfl_afu - afu device data structure
45 *
46 * @region_cur_offset: current region offset from start to the device fd.
47 * @num_regions: num of mmio regions.
48 * @regions: the mmio region linked list of this afu feature device.
49 * @num_umsgs: num of umsgs.
50 * @pdata: afu platform device's pdata.
51 */
52struct dfl_afu {
53 u64 region_cur_offset;
54 int num_regions;
55 u8 num_umsgs;
56 struct list_head regions;
57
58 struct dfl_feature_platform_data *pdata;
59};
60
61void afu_mmio_region_init(struct dfl_feature_platform_data *pdata);
62int afu_mmio_region_add(struct dfl_feature_platform_data *pdata,
63 u32 region_index, u64 region_size, u64 phys, u32 flags);
64void afu_mmio_region_destroy(struct dfl_feature_platform_data *pdata);
65int afu_mmio_region_get_by_index(struct dfl_feature_platform_data *pdata,
66 u32 region_index,
67 struct dfl_afu_mmio_region *pregion);
68int afu_mmio_region_get_by_offset(struct dfl_feature_platform_data *pdata,
69 u64 offset, u64 size,
70 struct dfl_afu_mmio_region *pregion);
71#endif