Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) COPYRIGHT 2020 ARM Limited. All rights reserved. |
| 3 | * |
| 4 | * This program is free software and is provided to you under the terms of the |
| 5 | * GNU General Public License version 2 as published by the Free Software |
| 6 | * Foundation, and any use by you of this program is subject to the terms |
| 7 | * of such GNU licence. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, you can access it online at |
| 16 | * http://www.gnu.org/licenses/gpl-2.0.html. |
| 17 | * |
| 18 | * SPDX-License-Identifier: GPL-2.0-only |
| 19 | */ |
| 20 | |
| 21 | #ifndef ETHOSU_H |
| 22 | #define ETHOSU_H |
| 23 | |
| 24 | /**************************************************************************** |
| 25 | * Includes |
| 26 | ****************************************************************************/ |
| 27 | |
| 28 | #include <linux/ioctl.h> |
| 29 | #include <linux/types.h> |
| 30 | |
Per Åstrand | c823bcf | 2021-01-12 13:11:13 +0100 | [diff] [blame^] | 31 | #ifdef __cplusplus |
| 32 | namespace EthosU { |
| 33 | #endif |
| 34 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 35 | /**************************************************************************** |
| 36 | * Defines |
| 37 | ****************************************************************************/ |
| 38 | |
| 39 | #define ETHOSU_IOCTL_BASE 0x01 |
| 40 | #define ETHOSU_IO(nr) _IO(ETHOSU_IOCTL_BASE, nr) |
| 41 | #define ETHOSU_IOR(nr, type) _IOR(ETHOSU_IOCTL_BASE, nr, type) |
| 42 | #define ETHOSU_IOW(nr, type) _IOW(ETHOSU_IOCTL_BASE, nr, type) |
| 43 | #define ETHOSU_IOWR(nr, type) _IOWR(ETHOSU_IOCTL_BASE, nr, type) |
| 44 | |
| 45 | #define ETHOSU_IOCTL_PING ETHOSU_IO(0x00) |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 46 | #define ETHOSU_IOCTL_VERSION_REQ ETHOSU_IO(0x01) |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 47 | #define ETHOSU_IOCTL_BUFFER_CREATE ETHOSU_IOR(0x10, \ |
| 48 | struct ethosu_uapi_buffer_create) |
| 49 | #define ETHOSU_IOCTL_BUFFER_SET ETHOSU_IOR(0x11, \ |
| 50 | struct ethosu_uapi_buffer) |
| 51 | #define ETHOSU_IOCTL_BUFFER_GET ETHOSU_IOW(0x12, \ |
| 52 | struct ethosu_uapi_buffer) |
| 53 | #define ETHOSU_IOCTL_NETWORK_CREATE ETHOSU_IOR(0x20, \ |
| 54 | struct ethosu_uapi_network_create) |
| 55 | #define ETHOSU_IOCTL_INFERENCE_CREATE ETHOSU_IOR(0x30, \ |
| 56 | struct ethosu_uapi_inference_create) |
Per Åstrand | f7e407a | 2020-10-23 21:25:05 +0200 | [diff] [blame] | 57 | #define ETHOSU_IOCTL_INFERENCE_STATUS ETHOSU_IOR(0x31, \ |
| 58 | struct ethosu_uapi_result_status) |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 59 | |
Kristofer Jonsson | b74492c | 2020-09-10 13:26:01 +0200 | [diff] [blame] | 60 | /* Maximum number of IFM/OFM file descriptors per network */ |
| 61 | #define ETHOSU_FD_MAX 16 |
| 62 | |
Per Åstrand | f7e407a | 2020-10-23 21:25:05 +0200 | [diff] [blame] | 63 | /* Maximum number of PMUs available */ |
| 64 | #define ETHOSU_PMU_EVENT_MAX 4 |
| 65 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 66 | /**************************************************************************** |
| 67 | * Types |
| 68 | ****************************************************************************/ |
| 69 | |
| 70 | /** |
| 71 | * enum ethosu_uapi_status - Status |
| 72 | */ |
| 73 | enum ethosu_uapi_status { |
| 74 | ETHOSU_UAPI_STATUS_OK, |
| 75 | ETHOSU_UAPI_STATUS_ERROR |
| 76 | }; |
| 77 | |
| 78 | /** |
| 79 | * struct ethosu_uapi_buffer_create - Create buffer request |
| 80 | * @capacity: Maximum capacity of the buffer |
| 81 | */ |
| 82 | struct ethosu_uapi_buffer_create { |
| 83 | __u32 capacity; |
| 84 | }; |
| 85 | |
| 86 | /** |
| 87 | * struct ethosu_uapi_buffer - Buffer descriptor |
| 88 | * @offset: Offset to where the data starts |
| 89 | * @size: Size of the data |
| 90 | * |
| 91 | * 'offset + size' must not exceed the capacity of the buffer. |
| 92 | */ |
| 93 | struct ethosu_uapi_buffer { |
| 94 | __u32 offset; |
| 95 | __u32 size; |
| 96 | }; |
| 97 | |
| 98 | /** |
| 99 | * struct ethosu_uapi_network_create - Create network request |
| 100 | * @fd: Buffer file descriptor |
| 101 | */ |
| 102 | struct ethosu_uapi_network_create { |
| 103 | __u32 fd; |
| 104 | }; |
| 105 | |
| 106 | /** |
Per Åstrand | f7e407a | 2020-10-23 21:25:05 +0200 | [diff] [blame] | 107 | * struct ethosu_uapi_pmu_config - Configure performance counters |
| 108 | * @events: Array of counters to configure, set to non-zero for |
| 109 | * each counter to enable corresponding event. |
| 110 | * @cycle_count: Set to enable the cycle counter. |
| 111 | */ |
| 112 | struct ethosu_uapi_pmu_config { |
| 113 | __u32 events[ETHOSU_PMU_EVENT_MAX]; |
| 114 | __u32 cycle_count; |
| 115 | }; |
| 116 | |
| 117 | /** |
| 118 | * struct ethosu_uapi_pmu_counts - Status of performance counters |
| 119 | * @events: Count for respective configured events. |
| 120 | * @cycle_count: Count for cycle counter. |
| 121 | */ |
| 122 | struct ethosu_uapi_pmu_counts { |
| 123 | __u32 events[ETHOSU_PMU_EVENT_MAX]; |
| 124 | __u64 cycle_count; |
| 125 | }; |
| 126 | |
| 127 | /** |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 128 | * struct ethosu_uapi_inference_create - Create network request |
Kristofer Jonsson | b74492c | 2020-09-10 13:26:01 +0200 | [diff] [blame] | 129 | * @ifm_count: Number of IFM file descriptors |
| 130 | * @ifm_fd: IFM buffer file descriptors |
| 131 | * @ofm_count: Number of OFM file descriptors |
| 132 | * @ofm_fd: OFM buffer file descriptors |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 133 | */ |
| 134 | struct ethosu_uapi_inference_create { |
Per Åstrand | f7e407a | 2020-10-23 21:25:05 +0200 | [diff] [blame] | 135 | __u32 ifm_count; |
| 136 | __u32 ifm_fd[ETHOSU_FD_MAX]; |
| 137 | __u32 ofm_count; |
| 138 | __u32 ofm_fd[ETHOSU_FD_MAX]; |
| 139 | struct ethosu_uapi_pmu_config pmu_config; |
| 140 | }; |
| 141 | |
| 142 | /** |
| 143 | * struct ethosu_uapi_result_status - Status of inference |
| 144 | * @status Status of run inference. |
| 145 | * @pmu_config Configured performance counters. |
| 146 | * @pmu_count Perfomance counters values, when status is |
| 147 | * ETHOSU_UAPI_STATUS_OK. |
| 148 | */ |
| 149 | struct ethosu_uapi_result_status { |
| 150 | enum ethosu_uapi_status status; |
| 151 | struct ethosu_uapi_pmu_config pmu_config; |
| 152 | struct ethosu_uapi_pmu_counts pmu_count; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 153 | }; |
| 154 | |
Per Åstrand | c823bcf | 2021-01-12 13:11:13 +0100 | [diff] [blame^] | 155 | #ifdef __cplusplus |
| 156 | } /* namespace EthosU */ |
| 157 | #endif |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 158 | #endif |