| /* |
| * (C) COPYRIGHT 2020 ARM Limited. All rights reserved. |
| * |
| * 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. |
| * |
| * SPDX-License-Identifier: GPL-2.0-only |
| */ |
| |
| #ifndef ETHOSU_INFERENCE_H |
| #define ETHOSU_INFERENCE_H |
| |
| /**************************************************************************** |
| * Includes |
| ****************************************************************************/ |
| |
| #include "uapi/ethosu.h" |
| |
| #include <linux/kref.h> |
| #include <linux/types.h> |
| #include <linux/wait.h> |
| |
| /**************************************************************************** |
| * Types |
| ****************************************************************************/ |
| |
| struct ethosu_buffer; |
| struct ethosu_core_inference_rsp; |
| struct ethosu_device; |
| 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 |
| * @ifm: Pointer to IFM buffer |
| * @ofm: Pointer to OFM buffer |
| * @net: Pointer to network |
| * @pending: Pending response from the firmware |
| * @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 |
| */ |
| struct ethosu_inference { |
| struct ethosu_device *edev; |
| struct file *file; |
| struct kref kref; |
| wait_queue_head_t waitq; |
| 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; |
| bool pending; |
| enum ethosu_uapi_status status; |
| uint8_t pmu_event_config[ETHOSU_PMU_EVENT_MAX]; |
| uint32_t pmu_event_count[ETHOSU_PMU_EVENT_MAX]; |
| uint32_t pmu_cycle_counter_enable; |
| uint64_t pmu_cycle_counter_count; |
| struct list_head list; |
| }; |
| |
| /**************************************************************************** |
| * 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 ethosu_device *edev, |
| 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 |
| */ |
| void ethosu_inference_put(struct ethosu_inference *inf); |
| |
| /** |
| * ethosu_inference_rsp() - Handle inference response |
| */ |
| void ethosu_inference_rsp(struct ethosu_device *edev, |
| struct ethosu_core_inference_rsp *rsp); |
| |
| #endif /* ETHOSU_INFERENCE_H */ |