Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 1 | /* |
Mikael Olsson | 53d224a | 2023-06-05 16:28:07 +0200 | [diff] [blame] | 2 | * SPDX-FileCopyrightText: Copyright 2020-2023 Arm Limited and/or its affiliates <open-source-office@arm.com> |
| 3 | * SPDX-License-Identifier: GPL-2.0-only |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 4 | * |
| 5 | * This program is free software and is provided to you under the terms of the |
| 6 | * GNU General Public License version 2 as published by the Free Software |
| 7 | * Foundation, and any use by you of this program is subject to the terms |
| 8 | * of such GNU licence. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, you can access it online at |
| 17 | * http://www.gnu.org/licenses/gpl-2.0.html. |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | /**************************************************************************** |
| 21 | * Includes |
| 22 | ****************************************************************************/ |
| 23 | |
| 24 | #include "ethosu_device.h" |
| 25 | |
| 26 | #include "ethosu_buffer.h" |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 27 | #include "ethosu_core_rpmsg.h" |
Davide Grohmann | 32660f9 | 2022-04-27 16:49:07 +0200 | [diff] [blame] | 28 | #include "ethosu_capabilities.h" |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 29 | #include "ethosu_inference.h" |
Davide Grohmann | 7e8f508 | 2022-03-23 12:48:45 +0100 | [diff] [blame] | 30 | #include "ethosu_cancel_inference.h" |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 31 | #include "ethosu_network.h" |
Kristofer Jonsson | 3c6a260 | 2022-03-10 11:17:29 +0100 | [diff] [blame] | 32 | #include "ethosu_network_info.h" |
Mikael Olsson | 7c843dc | 2023-08-03 12:41:48 +0200 | [diff] [blame] | 33 | #include "ethosu_version.h" |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 34 | #include "uapi/ethosu.h" |
| 35 | |
Mikael Olsson | 099d90c | 2023-05-02 10:39:22 +0200 | [diff] [blame] | 36 | #include <linux/dma-mapping.h> |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 37 | #include <linux/errno.h> |
| 38 | #include <linux/fs.h> |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 39 | #include <linux/io.h> |
Mikael Olsson | 53d224a | 2023-06-05 16:28:07 +0200 | [diff] [blame] | 40 | #include <linux/of_device.h> |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 41 | #include <linux/of_reserved_mem.h> |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 42 | #include <linux/remoteproc.h> |
Davide Grohmann | 35ce6c8 | 2021-06-01 15:03:51 +0200 | [diff] [blame] | 43 | #include <linux/slab.h> |
Kristofer Jonsson | 442fefb | 2022-03-17 17:15:52 +0100 | [diff] [blame] | 44 | #include <linux/uaccess.h> |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 45 | |
| 46 | /**************************************************************************** |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 47 | * Defines |
| 48 | ****************************************************************************/ |
| 49 | |
| 50 | #define MINOR_BASE 0 /* Minor version starts at 0 */ |
| 51 | #define MINOR_COUNT 64 /* Allocate minor versions */ |
| 52 | |
| 53 | /**************************************************************************** |
| 54 | * Variables |
| 55 | ****************************************************************************/ |
| 56 | |
| 57 | static DECLARE_BITMAP(minors, MINOR_COUNT); |
| 58 | |
| 59 | /**************************************************************************** |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 60 | * Functions |
| 61 | ****************************************************************************/ |
| 62 | |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 63 | /* Incoming messages */ |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 64 | static int ethosu_handle_rpmsg(struct rpmsg_device *rpdev, |
| 65 | void *data, |
| 66 | int len, |
| 67 | void *priv, |
| 68 | u32 src) |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 69 | { |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 70 | struct ethosu_device *edev = dev_get_drvdata(&rpdev->dev); |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 71 | struct device *dev = &edev->dev; |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 72 | struct ethosu_mailbox *mbox = &edev->mailbox; |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 73 | struct ethosu_core_rpmsg *rpmsg = data; |
| 74 | int length = len - sizeof(rpmsg->header); |
Mikael Olsson | 0483d66 | 2023-08-11 16:12:56 +0200 | [diff] [blame] | 75 | int ret = 0; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 76 | |
Mikael Olsson | fd6b8dc | 2023-05-10 14:46:30 +0200 | [diff] [blame] | 77 | if (unlikely(rpmsg->header.magic != ETHOSU_CORE_MSG_MAGIC)) { |
| 78 | dev_warn(dev, "Msg: Error invalid message magic. magic=0x%08x", |
| 79 | rpmsg->header.magic); |
| 80 | |
| 81 | return -EBADMSG; |
| 82 | } |
| 83 | |
Mikael Olsson | 5fcc28c | 2023-05-16 16:53:09 +0200 | [diff] [blame] | 84 | device_lock(dev); |
| 85 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 86 | dev_info(dev, |
| 87 | "Msg: magic=0x%08x, type=%u, msg_id=%llu", |
| 88 | rpmsg->header.magic, rpmsg->header.type, rpmsg->header.msg_id); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 89 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 90 | switch (rpmsg->header.type) { |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 91 | case ETHOSU_CORE_MSG_ERR: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 92 | if (length != sizeof(rpmsg->error)) { |
| 93 | dev_warn(dev, |
| 94 | "Msg: Error message of incorrect size. size=%u, expected=%zu", length, |
| 95 | sizeof(rpmsg->error)); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 96 | ret = -EBADMSG; |
| 97 | break; |
| 98 | } |
| 99 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 100 | rpmsg->error.msg[sizeof(rpmsg->error.msg) - 1] = '\0'; |
| 101 | dev_warn(dev, "Msg: Error. type=%u, msg=\"%s\"", |
| 102 | rpmsg->error.type, rpmsg->error.msg); |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 103 | |
| 104 | rproc_report_crash(rproc_get_by_child(dev), RPROC_FATAL_ERROR); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 105 | break; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 106 | case ETHOSU_CORE_MSG_PING: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 107 | dev_info(dev, "Msg: Ping"); |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 108 | ret = ethosu_mailbox_pong(mbox); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 109 | break; |
| 110 | case ETHOSU_CORE_MSG_PONG: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 111 | dev_info(dev, "Msg: Pong"); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 112 | break; |
| 113 | case ETHOSU_CORE_MSG_INFERENCE_RSP: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 114 | if (length != sizeof(rpmsg->inf_rsp)) { |
| 115 | dev_warn(dev, |
| 116 | "Msg: Inference response of incorrect size. size=%u, expected=%zu", length, |
| 117 | sizeof(rpmsg->inf_rsp)); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 118 | ret = -EBADMSG; |
| 119 | break; |
| 120 | } |
| 121 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 122 | dev_info(dev, |
| 123 | "Msg: Inference response. ofm_count=%u, status=%u", |
| 124 | rpmsg->inf_rsp.ofm_count, rpmsg->inf_rsp.status); |
Kristofer Jonsson | 442fefb | 2022-03-17 17:15:52 +0100 | [diff] [blame] | 125 | |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 126 | ethosu_inference_rsp(mbox, rpmsg->header.msg_id, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 127 | &rpmsg->inf_rsp); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 128 | break; |
Davide Grohmann | 7e8f508 | 2022-03-23 12:48:45 +0100 | [diff] [blame] | 129 | case ETHOSU_CORE_MSG_CANCEL_INFERENCE_RSP: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 130 | if (length != sizeof(rpmsg->cancel_rsp)) { |
| 131 | dev_warn(dev, |
| 132 | "Msg: Cancel Inference response of incorrect size. size=%u, expected=%zu", length, |
| 133 | sizeof(rpmsg->cancel_rsp)); |
Davide Grohmann | 7e8f508 | 2022-03-23 12:48:45 +0100 | [diff] [blame] | 134 | ret = -EBADMSG; |
| 135 | break; |
| 136 | } |
| 137 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 138 | dev_info(dev, |
| 139 | "Msg: Cancel Inference response. status=%u", |
| 140 | rpmsg->cancel_rsp.status); |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 141 | ethosu_cancel_inference_rsp(mbox, |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 142 | rpmsg->header.msg_id, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 143 | &rpmsg->cancel_rsp); |
Davide Grohmann | 7e8f508 | 2022-03-23 12:48:45 +0100 | [diff] [blame] | 144 | break; |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 145 | case ETHOSU_CORE_MSG_VERSION_RSP: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 146 | if (length != sizeof(rpmsg->version_rsp)) { |
| 147 | dev_warn(dev, |
Mikael Olsson | 7c843dc | 2023-08-03 12:41:48 +0200 | [diff] [blame] | 148 | "Msg: Protocol version response of incorrect size. size=%u, expected=%zu", length, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 149 | sizeof(rpmsg->version_rsp)); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 150 | ret = -EBADMSG; |
| 151 | break; |
| 152 | } |
| 153 | |
Mikael Olsson | 7c843dc | 2023-08-03 12:41:48 +0200 | [diff] [blame] | 154 | dev_dbg(dev, "Msg: Protocol version response %u.%u.%u", |
| 155 | rpmsg->version_rsp.major, rpmsg->version_rsp.minor, |
| 156 | rpmsg->version_rsp.patch); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 157 | |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 158 | ethosu_version_rsp(mbox, rpmsg->header.msg_id, |
Mikael Olsson | 7c843dc | 2023-08-03 12:41:48 +0200 | [diff] [blame] | 159 | &rpmsg->version_rsp); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 160 | break; |
Davide Grohmann | 35ce6c8 | 2021-06-01 15:03:51 +0200 | [diff] [blame] | 161 | case ETHOSU_CORE_MSG_CAPABILITIES_RSP: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 162 | if (length != sizeof(rpmsg->cap_rsp)) { |
| 163 | dev_warn(dev, |
| 164 | "Msg: Capabilities response of incorrect size. size=%u, expected=%zu", length, |
| 165 | sizeof(rpmsg->cap_rsp)); |
Davide Grohmann | 35ce6c8 | 2021-06-01 15:03:51 +0200 | [diff] [blame] | 166 | ret = -EBADMSG; |
| 167 | break; |
| 168 | } |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 169 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 170 | dev_info(dev, |
| 171 | "Msg: Capabilities response vs%hhu v%hhu.%hhu p%hhu av%hhu.%hhu.%hhu dv%hhu.%hhu.%hhu mcc%hhu csv%hhu cd%hhu", |
| 172 | rpmsg->cap_rsp.version_status, |
| 173 | rpmsg->cap_rsp.version_major, |
| 174 | rpmsg->cap_rsp.version_minor, |
| 175 | rpmsg->cap_rsp.product_major, |
| 176 | rpmsg->cap_rsp.arch_major_rev, |
| 177 | rpmsg->cap_rsp.arch_minor_rev, |
| 178 | rpmsg->cap_rsp.arch_patch_rev, |
| 179 | rpmsg->cap_rsp.driver_major_rev, |
| 180 | rpmsg->cap_rsp.driver_minor_rev, |
| 181 | rpmsg->cap_rsp.driver_patch_rev, |
| 182 | rpmsg->cap_rsp.macs_per_cc, |
| 183 | rpmsg->cap_rsp.cmd_stream_version, |
| 184 | rpmsg->cap_rsp.custom_dma); |
Davide Grohmann | 35ce6c8 | 2021-06-01 15:03:51 +0200 | [diff] [blame] | 185 | |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 186 | ethosu_capability_rsp(mbox, rpmsg->header.msg_id, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 187 | &rpmsg->cap_rsp); |
Davide Grohmann | 35ce6c8 | 2021-06-01 15:03:51 +0200 | [diff] [blame] | 188 | break; |
Kristofer Jonsson | 3c6a260 | 2022-03-10 11:17:29 +0100 | [diff] [blame] | 189 | case ETHOSU_CORE_MSG_NETWORK_INFO_RSP: |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 190 | if (length != sizeof(rpmsg->net_info_rsp)) { |
| 191 | dev_warn(dev, |
| 192 | "Msg: Network info response of incorrect size. size=%u, expected=%zu", length, |
| 193 | sizeof(rpmsg->net_info_rsp)); |
Kristofer Jonsson | 3c6a260 | 2022-03-10 11:17:29 +0100 | [diff] [blame] | 194 | ret = -EBADMSG; |
| 195 | break; |
| 196 | } |
| 197 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 198 | dev_info(dev, |
| 199 | "Msg: Network info response. status=%u", |
| 200 | rpmsg->net_info_rsp.status); |
Kristofer Jonsson | 3c6a260 | 2022-03-10 11:17:29 +0100 | [diff] [blame] | 201 | |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 202 | ethosu_network_info_rsp(mbox, |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 203 | rpmsg->header.msg_id, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 204 | &rpmsg->net_info_rsp); |
Kristofer Jonsson | 3c6a260 | 2022-03-10 11:17:29 +0100 | [diff] [blame] | 205 | |
| 206 | break; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 207 | default: |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 208 | /* This should not happen due to version checks */ |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 209 | dev_warn(dev, "Msg: Protocol error. type=%u", |
| 210 | rpmsg->header.type); |
Jonny Svärd | 7c24c77 | 2021-01-14 19:53:17 +0100 | [diff] [blame] | 211 | ret = -EPROTO; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 212 | break; |
| 213 | } |
| 214 | |
Mikael Olsson | 5fcc28c | 2023-05-16 16:53:09 +0200 | [diff] [blame] | 215 | device_unlock(dev); |
| 216 | |
Mikael Olsson | 6fb238f | 2023-08-23 11:02:47 +0200 | [diff] [blame] | 217 | wake_up(&mbox->send_queue); |
| 218 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 219 | return ret; |
| 220 | } |
| 221 | |
| 222 | static int ethosu_open(struct inode *inode, |
| 223 | struct file *file) |
| 224 | { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 225 | struct cdev *cdev = inode->i_cdev; |
| 226 | struct ethosu_device *edev = container_of(cdev, struct ethosu_device, |
| 227 | cdev); |
| 228 | struct rpmsg_device *rpdev = edev->rpdev; |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 229 | struct device *dev = &edev->dev; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 230 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 231 | dev_info(dev, "Device open. file=0x%pK", file); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 232 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 233 | file->private_data = rpdev; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 234 | |
| 235 | return nonseekable_open(inode, file); |
| 236 | } |
| 237 | |
| 238 | static long ethosu_ioctl(struct file *file, |
| 239 | unsigned int cmd, |
| 240 | unsigned long arg) |
| 241 | { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 242 | struct rpmsg_device *rpdev = file->private_data; |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 243 | struct ethosu_device *edev = dev_get_drvdata(&rpdev->dev); |
| 244 | struct device *dev = &edev->dev; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 245 | void __user *udata = (void __user *)arg; |
Mikael Olsson | 891156d | 2023-08-24 13:20:31 +0200 | [diff] [blame] | 246 | int ret; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 247 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 248 | dev_info(dev, "Device ioctl. file=0x%pK, cmd=0x%x, arg=0x%lx", |
Kristofer Jonsson | 53fd03d | 2022-06-21 16:58:45 +0200 | [diff] [blame] | 249 | file, cmd, arg); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 250 | |
| 251 | switch (cmd) { |
Mikael Olsson | f1cfe19 | 2023-06-12 15:00:41 +0200 | [diff] [blame] | 252 | case ETHOSU_IOCTL_DRIVER_VERSION_GET: { |
| 253 | const struct ethosu_uapi_kernel_driver_version version = { |
| 254 | .major = ETHOSU_KERNEL_DRIVER_VERSION_MAJOR, |
| 255 | .minor = ETHOSU_KERNEL_DRIVER_VERSION_MINOR, |
| 256 | .patch = ETHOSU_KERNEL_DRIVER_VERSION_PATCH, |
| 257 | }; |
| 258 | |
| 259 | ret = copy_to_user(udata, &version, |
| 260 | sizeof(version)) ? -EFAULT : 0; |
| 261 | break; |
| 262 | } |
Davide Grohmann | 32660f9 | 2022-04-27 16:49:07 +0200 | [diff] [blame] | 263 | case ETHOSU_IOCTL_CAPABILITIES_REQ: { |
Mikael Olsson | 252ed6a | 2023-05-29 18:07:55 +0200 | [diff] [blame] | 264 | dev_info(dev, "Device ioctl: Capabilities request"); |
Kristofer Jonsson | 53fd03d | 2022-06-21 16:58:45 +0200 | [diff] [blame] | 265 | |
Mikael Olsson | 252ed6a | 2023-05-29 18:07:55 +0200 | [diff] [blame] | 266 | ret = copy_to_user(udata, &edev->capabilities, |
| 267 | sizeof(edev->capabilities)) ? -EFAULT : 0; |
Davide Grohmann | 35ce6c8 | 2021-06-01 15:03:51 +0200 | [diff] [blame] | 268 | break; |
Davide Grohmann | 32660f9 | 2022-04-27 16:49:07 +0200 | [diff] [blame] | 269 | } |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 270 | case ETHOSU_IOCTL_PING: { |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 271 | ret = device_lock_interruptible(dev); |
| 272 | if (ret) |
| 273 | return ret; |
| 274 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 275 | dev_info(dev, "Device ioctl: Send ping"); |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 276 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 277 | ret = ethosu_mailbox_ping(&edev->mailbox); |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 278 | |
| 279 | device_unlock(dev); |
| 280 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 281 | break; |
| 282 | } |
| 283 | case ETHOSU_IOCTL_BUFFER_CREATE: { |
| 284 | struct ethosu_uapi_buffer_create uapi; |
| 285 | |
Mikael Olsson | 891156d | 2023-08-24 13:20:31 +0200 | [diff] [blame] | 286 | if (copy_from_user(&uapi, udata, sizeof(uapi))) { |
| 287 | ret = -EFAULT; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 288 | break; |
Mikael Olsson | 891156d | 2023-08-24 13:20:31 +0200 | [diff] [blame] | 289 | } |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 290 | |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 291 | ret = device_lock_interruptible(dev); |
| 292 | if (ret) |
| 293 | return ret; |
| 294 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 295 | dev_info(dev, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 296 | "Device ioctl: Buffer create. capacity=%u", |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 297 | uapi.capacity); |
| 298 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 299 | ret = ethosu_buffer_create(dev, uapi.capacity); |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 300 | |
| 301 | device_unlock(dev); |
| 302 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 303 | break; |
| 304 | } |
| 305 | case ETHOSU_IOCTL_NETWORK_CREATE: { |
| 306 | struct ethosu_uapi_network_create uapi; |
| 307 | |
Mikael Olsson | 891156d | 2023-08-24 13:20:31 +0200 | [diff] [blame] | 308 | if (copy_from_user(&uapi, udata, sizeof(uapi))) { |
| 309 | ret = -EFAULT; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 310 | break; |
Mikael Olsson | 891156d | 2023-08-24 13:20:31 +0200 | [diff] [blame] | 311 | } |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 312 | |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 313 | ret = device_lock_interruptible(dev); |
| 314 | if (ret) |
| 315 | return ret; |
| 316 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 317 | dev_info(dev, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 318 | "Device ioctl: Network create. type=%u, fd/index=%u", |
Kristofer Jonsson | 53fd03d | 2022-06-21 16:58:45 +0200 | [diff] [blame] | 319 | uapi.type, uapi.fd); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 320 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 321 | ret = ethosu_network_create(dev, &edev->mailbox, &uapi); |
Mikael Olsson | 1825760 | 2023-08-23 11:02:20 +0200 | [diff] [blame] | 322 | |
| 323 | device_unlock(dev); |
| 324 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 325 | break; |
| 326 | } |
| 327 | default: { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 328 | dev_err(dev, "Invalid ioctl. cmd=%u, arg=%lu", |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 329 | cmd, arg); |
Mikael Olsson | 891156d | 2023-08-24 13:20:31 +0200 | [diff] [blame] | 330 | ret = -ENOIOCTLCMD; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 331 | break; |
| 332 | } |
| 333 | } |
| 334 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 335 | return ret; |
| 336 | } |
| 337 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 338 | static struct rpmsg_endpoint *ethosu_create_ept(struct rpmsg_device *rpdev) |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 339 | { |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 340 | struct device *dev = &rpdev->dev; |
| 341 | struct rpmsg_channel_info info; |
| 342 | struct rpmsg_endpoint *ept; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 343 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 344 | /* Create rpmsg endpoint */ |
| 345 | strncpy(info.name, rpdev->id.name, sizeof(info.name)); |
| 346 | info.src = 0; |
| 347 | info.dst = rpdev->dst; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 348 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 349 | dev_info(dev, "Creating rpmsg endpoint. name=%s, src=%u, dst=%u", |
| 350 | info.name, info.src, info.dst); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 351 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 352 | ept = rpmsg_create_ept(rpdev, ethosu_handle_rpmsg, NULL, info); |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 353 | if (!ept) { |
| 354 | dev_err(&rpdev->dev, "Failed to create endpoint"); |
| 355 | |
| 356 | return ERR_PTR(-EINVAL); |
| 357 | } |
| 358 | |
| 359 | return ept; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 360 | } |
| 361 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 362 | static const struct file_operations fops = { |
| 363 | .owner = THIS_MODULE, |
| 364 | .open = ðosu_open, |
| 365 | .unlocked_ioctl = ðosu_ioctl, |
| 366 | #ifdef CONFIG_COMPAT |
| 367 | .compat_ioctl = ðosu_ioctl, |
| 368 | #endif |
| 369 | }; |
| 370 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 371 | static void ethosu_dev_release(struct device *dev) |
| 372 | { |
| 373 | struct ethosu_device *edev = dev_get_drvdata(dev); |
| 374 | |
| 375 | dev_info(dev, "%s", __FUNCTION__); |
| 376 | |
| 377 | clear_bit(MINOR(edev->cdev.dev), minors); |
| 378 | |
| 379 | ethosu_mailbox_deinit(&edev->mailbox); |
| 380 | device_destroy(edev->class, edev->cdev.dev); |
| 381 | kfree(edev); |
| 382 | } |
| 383 | |
| 384 | static int ethosu_device_register(struct device *dev, |
| 385 | struct device *parent, |
| 386 | void *drvdata, |
| 387 | dev_t devt) |
| 388 | { |
| 389 | struct rproc *rproc = rproc_get_by_child(parent); |
| 390 | int ret; |
| 391 | |
| 392 | dev->parent = parent; |
| 393 | dev->release = ethosu_dev_release; |
| 394 | dev_set_drvdata(dev, drvdata); |
| 395 | |
| 396 | ret = dev_set_name(dev, "ethosu%d", MINOR(devt)); |
| 397 | if (ret) { |
| 398 | dev_err(parent, "Failed to set device name. ret=%d", ret); |
| 399 | |
| 400 | return ret; |
| 401 | } |
| 402 | |
Mikael Olsson | 53d224a | 2023-06-05 16:28:07 +0200 | [diff] [blame] | 403 | /* Inherit DMA mask from rproc device */ |
| 404 | ret = dma_coerce_mask_and_coherent(dev, |
| 405 | dma_get_mask(rproc->dev.parent)); |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 406 | if (ret) { |
Mikael Olsson | 53d224a | 2023-06-05 16:28:07 +0200 | [diff] [blame] | 407 | dev_err(parent, "Failed to set DMA mask. ret=%d", ret); |
| 408 | |
| 409 | return ret; |
| 410 | } |
| 411 | |
| 412 | /* Inherit DMA configuration from rproc device */ |
| 413 | ret = of_dma_configure(dev, rproc->dev.parent->of_node, false); |
| 414 | if (ret) { |
| 415 | dev_err(parent, "Failed to configure DMA. ret=%d", |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 416 | ret); |
| 417 | |
| 418 | return ret; |
| 419 | } |
| 420 | |
Mikael Olsson | 53d224a | 2023-06-05 16:28:07 +0200 | [diff] [blame] | 421 | /* Inherit reserved memory from rproc device */ |
| 422 | ret = of_reserved_mem_device_init_by_idx(dev, |
| 423 | rproc->dev.parent->of_node, 0); |
Mikael Olsson | 099d90c | 2023-05-02 10:39:22 +0200 | [diff] [blame] | 424 | if (ret) { |
Mikael Olsson | 53d224a | 2023-06-05 16:28:07 +0200 | [diff] [blame] | 425 | dev_err(parent, "Failed to initialize reserved memory. ret=%d", |
| 426 | ret); |
Mikael Olsson | 099d90c | 2023-05-02 10:39:22 +0200 | [diff] [blame] | 427 | |
| 428 | return ret; |
| 429 | } |
| 430 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 431 | ret = device_register(dev); |
| 432 | if (ret) { |
| 433 | dev_err(parent, "Failed to register device. ret=%d", ret); |
| 434 | |
| 435 | return ret; |
| 436 | } |
| 437 | |
| 438 | return 0; |
| 439 | } |
| 440 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 441 | int ethosu_dev_init(struct rpmsg_device *rpdev, |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 442 | struct class *class, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 443 | dev_t devt) |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 444 | { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 445 | struct device *dev = &rpdev->dev; |
| 446 | struct ethosu_device *edev; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 447 | struct device *sysdev; |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 448 | int minor; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 449 | int ret; |
| 450 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 451 | dev_info(dev, "%s", __FUNCTION__); |
| 452 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 453 | /* Reserve minor number for device node */ |
| 454 | minor = find_first_zero_bit(minors, MINOR_COUNT); |
| 455 | if (minor >= MINOR_COUNT) { |
| 456 | dev_err(dev, "No more minor numbers."); |
| 457 | |
| 458 | return -ENOMEM; |
| 459 | } |
| 460 | |
| 461 | devt = MKDEV(MAJOR(devt), minor); |
| 462 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 463 | /* Allocate and create Ethos-U device */ |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 464 | edev = kzalloc(sizeof(*edev), GFP_KERNEL); |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 465 | if (!edev) |
| 466 | return -ENOMEM; |
| 467 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 468 | dev_set_drvdata(&rpdev->dev, edev); |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 469 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 470 | edev->rpdev = rpdev; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 471 | edev->class = class; |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 472 | |
| 473 | /* Create device object */ |
| 474 | ret = ethosu_device_register(&edev->dev, &rpdev->dev, edev, |
| 475 | devt); |
Mikael Olsson | 229e125 | 2023-06-22 14:34:55 +0200 | [diff] [blame] | 476 | if (ret) { |
| 477 | kfree(edev); |
| 478 | |
| 479 | return ret; |
| 480 | } |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 481 | |
| 482 | /* Continue with new device */ |
| 483 | dev = &edev->dev; |
Kristofer Jonsson | 442fefb | 2022-03-17 17:15:52 +0100 | [diff] [blame] | 484 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 485 | /* Create RPMsg endpoint */ |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 486 | edev->ept = ethosu_create_ept(rpdev); |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 487 | if (IS_ERR(edev->ept)) { |
| 488 | ret = PTR_ERR(edev->ept); |
| 489 | goto device_unregister; |
| 490 | } |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 491 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 492 | ret = ethosu_mailbox_init(&edev->mailbox, dev, edev->ept); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 493 | if (ret) |
Mikael Olsson | 08c42f5 | 2023-06-22 15:13:35 +0200 | [diff] [blame] | 494 | goto free_rpmsg_ept; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 495 | |
Mikael Olsson | 7c843dc | 2023-08-03 12:41:48 +0200 | [diff] [blame] | 496 | device_lock(dev); |
| 497 | ret = ethosu_version_check_request(dev, &edev->mailbox); |
| 498 | device_unlock(dev); |
| 499 | if (ret) { |
| 500 | dev_err(dev, "Protocol version check failed: %d", ret); |
| 501 | goto deinit_mailbox; |
| 502 | } |
Mikael Olsson | 252ed6a | 2023-05-29 18:07:55 +0200 | [diff] [blame] | 503 | |
| 504 | device_lock(dev); |
| 505 | ret = ethosu_capabilities_request(dev, &edev->mailbox, |
| 506 | &edev->capabilities); |
| 507 | device_unlock(dev); |
| 508 | if (ret) { |
| 509 | dev_err(dev, "Failed to get device capabilities: %d", ret); |
| 510 | goto deinit_mailbox; |
| 511 | } |
| 512 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 513 | /* Create device node */ |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 514 | cdev_init(&edev->cdev, &fops); |
| 515 | edev->cdev.owner = THIS_MODULE; |
| 516 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 517 | cdev_set_parent(&edev->cdev, &dev->kobj); |
| 518 | |
| 519 | ret = cdev_add(&edev->cdev, devt, 1); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 520 | if (ret) { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 521 | dev_err(dev, "Failed to add character device."); |
Kristofer Jonsson | 4aec376 | 2021-10-13 17:09:27 +0200 | [diff] [blame] | 522 | goto deinit_mailbox; |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 523 | } |
| 524 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 525 | sysdev = device_create(edev->class, NULL, devt, rpdev, |
| 526 | "ethosu%d", MINOR(devt)); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 527 | if (IS_ERR(sysdev)) { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 528 | dev_err(dev, "Failed to create device."); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 529 | ret = PTR_ERR(sysdev); |
| 530 | goto del_cdev; |
| 531 | } |
| 532 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 533 | set_bit(minor, minors); |
| 534 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 535 | dev_info(dev, |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 536 | "Created Arm Ethos-U device. name=%s, major=%d, minor=%d", |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 537 | dev_name(sysdev), MAJOR(devt), MINOR(devt)); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 538 | |
| 539 | return 0; |
| 540 | |
| 541 | del_cdev: |
| 542 | cdev_del(&edev->cdev); |
| 543 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 544 | deinit_mailbox: |
| 545 | ethosu_mailbox_deinit(&edev->mailbox); |
| 546 | |
Mikael Olsson | 08c42f5 | 2023-06-22 15:13:35 +0200 | [diff] [blame] | 547 | free_rpmsg_ept: |
| 548 | rpmsg_destroy_ept(edev->ept); |
| 549 | |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 550 | device_unregister: |
| 551 | device_unregister(dev); |
| 552 | |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 553 | return ret; |
| 554 | } |
| 555 | |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 556 | void ethosu_dev_deinit(struct rpmsg_device *rpdev) |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 557 | { |
Kristofer Jonsson | ec47704 | 2023-01-20 13:38:13 +0100 | [diff] [blame] | 558 | struct device *dev = &rpdev->dev; |
| 559 | struct ethosu_device *edev = dev_get_drvdata(dev); |
| 560 | |
| 561 | dev_info(dev, "%s", __FUNCTION__); |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 562 | |
Mikael Olsson | 529cfad | 2023-06-14 17:14:14 +0200 | [diff] [blame] | 563 | device_lock(&edev->dev); |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 564 | ethosu_mailbox_fail(&edev->mailbox); |
Mikael Olsson | 529cfad | 2023-06-14 17:14:14 +0200 | [diff] [blame] | 565 | device_unlock(&edev->dev); |
| 566 | |
Kristofer Jonsson | d779a08 | 2023-01-04 17:09:47 +0100 | [diff] [blame] | 567 | rpmsg_destroy_ept(edev->ept); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 568 | cdev_del(&edev->cdev); |
Kristofer Jonsson | 074ef90 | 2023-01-23 13:05:36 +0100 | [diff] [blame] | 569 | device_unregister(&edev->dev); |
Kristofer Jonsson | 116a635 | 2020-08-20 17:25:23 +0200 | [diff] [blame] | 570 | } |