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Diffstat (limited to 'kernel/include/rpmsg/ethosu_rpmsg_inference.h')
| -rw-r--r-- | kernel/include/rpmsg/ethosu_rpmsg_inference.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/kernel/include/rpmsg/ethosu_rpmsg_inference.h b/kernel/include/rpmsg/ethosu_rpmsg_inference.h new file mode 100644 index 0000000..8bdfb8a --- /dev/null +++ b/kernel/include/rpmsg/ethosu_rpmsg_inference.h @@ -0,0 +1,124 @@ +/* + * SPDX-FileCopyrightText: Copyright 2020, 2022-2024 Arm Limited and/or its affiliates <open-source-office@arm.com> + * SPDX-License-Identifier: GPL-2.0-only + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, you can access it online at + * http://www.gnu.org/licenses/gpl-2.0.html. + */ + +#ifndef ETHOSU_INFERENCE_H +#define ETHOSU_INFERENCE_H + +/**************************************************************************** + * Includes + ****************************************************************************/ + +#include <rpmsg/ethosu_rpmsg_mailbox.h> +#include <uapi/ethosu.h> + +#include <linux/kref.h> +#include <linux/types.h> + +/**************************************************************************** + * Types + ****************************************************************************/ + +struct ethosu_buffer; +struct ethosu_core_msg_inference_rsp; +struct ethosu_network; +struct ethosu_uapi_inference_create; +struct file; + +/** + * struct ethosu_inference - Inference struct + * @edev: Arm Ethos-U device + * @file: File handle + * @kref: Reference counter + * @waitq: Wait queue + * @done: Wait condition is done + * @ifm: Pointer to IFM buffer + * @ofm: Pointer to OFM buffer + * @net: Pointer to network + * @status: Inference status + * @pmu_event_config: PMU event configuration + * @pmu_event_count: PMU event count after inference + * @pmu_cycle_counter_enable: PMU cycle counter config + * @pmu_cycle_counter_count: PMU cycle counter count after inference + * @msg: Mailbox message + */ +struct ethosu_inference { + struct device *dev; + struct ethosu_mailbox *mailbox; + struct file *file; + struct kref kref; + wait_queue_head_t waitq; + bool done; + uint32_t ifm_count; + struct ethosu_buffer *ifm[ETHOSU_FD_MAX]; + uint32_t ofm_count; + struct ethosu_buffer *ofm[ETHOSU_FD_MAX]; + struct ethosu_network *net; + enum ethosu_uapi_status status; + uint8_t pmu_event_config[ETHOSU_PMU_EVENT_MAX]; + uint64_t pmu_event_count[ETHOSU_PMU_EVENT_MAX]; + uint32_t pmu_cycle_counter_enable; + uint64_t pmu_cycle_counter_count; + struct ethosu_mailbox_msg msg; +}; + +/**************************************************************************** + * Functions + ****************************************************************************/ + +/** + * ethosu_inference_create() - Create inference + * + * This function must be called in the context of a user space process. + * + * Return: fd on success, else error code. + */ +int ethosu_inference_create(struct device *dev, + struct ethosu_mailbox *mailbox, + struct ethosu_network *net, + struct ethosu_uapi_inference_create *uapi); + +/** + * ethosu_inference_get_from_fd() - Get inference handle from fd + * + * This function must be called from a user space context. + * + * Return: Pointer on success, else ERR_PTR. + */ +struct ethosu_inference *ethosu_inference_get_from_fd(int fd); + +/** + * ethosu_inference_get() - Get inference + */ +void ethosu_inference_get(struct ethosu_inference *inf); + +/** + * ethosu_inference_put() - Put inference + * + * Return: 1 if object was removed, else 0. + */ +int ethosu_inference_put(struct ethosu_inference *inf); + +/** + * ethosu_inference_rsp() - Handle inference response + */ +void ethosu_inference_rsp(struct ethosu_mailbox *mailbox, + int msg_id, + struct ethosu_core_msg_inference_rsp *rsp); + +#endif /* ETHOSU_INFERENCE_H */ |