| /* |
| * Copyright 2020-2023 Arm Limited and/or its affiliates |
| * |
| * 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 |
| */ |
| |
| /**************************************************************************** |
| * Includes |
| ****************************************************************************/ |
| |
| #include "ethosu_mailbox.h" |
| |
| #include "ethosu_buffer.h" |
| #include "ethosu_core_rpmsg.h" |
| #include "ethosu_device.h" |
| |
| #include <linux/jiffies.h> |
| #include <linux/resource.h> |
| #include <linux/uio.h> |
| |
| /**************************************************************************** |
| * Includes |
| ****************************************************************************/ |
| |
| #ifndef fallthrough |
| #if __has_attribute(__fallthrough__) |
| #define fallthrough __attribute__((__fallthrough__)) |
| #else |
| #define fallthrough do {} while (0) /* fallthrough */ |
| #endif |
| #endif |
| |
| /**************************************************************************** |
| * Functions |
| ****************************************************************************/ |
| |
| static void ethosu_core_set_size(struct ethosu_buffer *buf, |
| struct ethosu_core_buffer *cbuf) |
| { |
| cbuf->ptr = (uint32_t)buf->dma_addr + buf->offset; |
| cbuf->size = (uint32_t)buf->size; |
| } |
| |
| static void ethosu_core_set_capacity(struct ethosu_buffer *buf, |
| struct ethosu_core_buffer *cbuf) |
| { |
| cbuf->ptr = (uint32_t)buf->dma_addr + buf->offset + buf->size; |
| cbuf->size = (uint32_t)buf->capacity - buf->offset - buf->size; |
| } |
| |
| int ethosu_mailbox_register(struct ethosu_mailbox *mbox, |
| struct ethosu_mailbox_msg *msg) |
| { |
| msg->id = idr_alloc_cyclic(&mbox->msg_idr, msg, 0, INT_MAX, GFP_KERNEL); |
| if (msg->id < 0) |
| return msg->id; |
| |
| return 0; |
| } |
| |
| void ethosu_mailbox_deregister(struct ethosu_mailbox *mbox, |
| struct ethosu_mailbox_msg *msg) |
| { |
| idr_remove(&mbox->msg_idr, msg->id); |
| } |
| |
| struct ethosu_mailbox_msg *ethosu_mailbox_find(struct ethosu_mailbox *mbox, |
| int msg_id) |
| { |
| struct ethosu_mailbox_msg *ptr = (struct ethosu_mailbox_msg *)idr_find( |
| &mbox->msg_idr, msg_id); |
| |
| if (ptr == NULL) |
| return ERR_PTR(-EINVAL); |
| |
| return ptr; |
| } |
| |
| void ethosu_mailbox_fail(struct ethosu_mailbox *mbox) |
| { |
| struct ethosu_mailbox_msg *cur; |
| int id; |
| |
| idr_for_each_entry(&mbox->msg_idr, cur, id) { |
| cur->fail(cur); |
| } |
| } |
| |
| int ethosu_mailbox_ping(struct ethosu_mailbox *mbox) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = ETHOSU_CORE_MSG_PING, |
| } |
| }; |
| |
| return rpmsg_send(mbox->ept, &rpmsg, sizeof(rpmsg.header)); |
| } |
| |
| int ethosu_mailbox_pong(struct ethosu_mailbox *mbox) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = ETHOSU_CORE_MSG_PONG, |
| } |
| }; |
| |
| return rpmsg_send(mbox->ept, &rpmsg, sizeof(rpmsg.header)); |
| } |
| |
| int ethosu_mailbox_version_request(struct ethosu_mailbox *mbox) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = ETHOSU_CORE_MSG_VERSION_REQ, |
| } |
| }; |
| |
| return rpmsg_send(mbox->ept, &rpmsg, sizeof(rpmsg.header)); |
| } |
| |
| int ethosu_mailbox_capabilities_request(struct ethosu_mailbox *mbox, |
| struct ethosu_mailbox_msg *msg) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = ETHOSU_CORE_MSG_CAPABILITIES_REQ, |
| .msg_id = msg->id |
| } |
| }; |
| |
| return rpmsg_send(mbox->ept, &rpmsg, sizeof(rpmsg.header)); |
| } |
| |
| int ethosu_mailbox_inference(struct ethosu_mailbox *mbox, |
| struct ethosu_mailbox_msg *msg, |
| uint32_t ifm_count, |
| struct ethosu_buffer **ifm, |
| uint32_t ofm_count, |
| struct ethosu_buffer **ofm, |
| struct ethosu_buffer *network, |
| uint32_t network_index, |
| uint8_t *pmu_event_config, |
| uint8_t pmu_event_config_count, |
| uint8_t pmu_cycle_counter_enable) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = ETHOSU_CORE_MSG_INFERENCE_REQ, |
| .msg_id = msg->id |
| } |
| }; |
| struct ethosu_core_msg_inference_req *inf_req = &rpmsg.inf_req; |
| uint32_t i; |
| |
| /* Verify that the uapi and core has the same number of pmus */ |
| if (pmu_event_config_count != ETHOSU_CORE_PMU_MAX) { |
| dev_err(mbox->dev, "PMU count misconfigured."); |
| |
| return -EINVAL; |
| } |
| |
| inf_req->ifm_count = ifm_count; |
| inf_req->ofm_count = ofm_count; |
| inf_req->pmu_cycle_counter_enable = pmu_cycle_counter_enable; |
| |
| for (i = 0; i < ifm_count; i++) |
| ethosu_core_set_size(ifm[i], &inf_req->ifm[i]); |
| |
| for (i = 0; i < ofm_count; i++) |
| ethosu_core_set_capacity(ofm[i], &inf_req->ofm[i]); |
| |
| for (i = 0; i < ETHOSU_CORE_PMU_MAX; i++) |
| inf_req->pmu_event_config[i] = pmu_event_config[i]; |
| |
| if (network != NULL) { |
| inf_req->network.type = ETHOSU_CORE_NETWORK_BUFFER; |
| ethosu_core_set_size(network, &inf_req->network.buffer); |
| } else { |
| inf_req->network.type = ETHOSU_CORE_NETWORK_INDEX; |
| inf_req->network.index = network_index; |
| } |
| |
| return rpmsg_send(mbox->ept, &rpmsg, |
| sizeof(rpmsg.header) + sizeof(rpmsg.inf_req)); |
| } |
| |
| int ethosu_mailbox_network_info_request(struct ethosu_mailbox *mbox, |
| struct ethosu_mailbox_msg *msg, |
| struct ethosu_buffer *network, |
| uint32_t network_index) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = ETHOSU_CORE_MSG_NETWORK_INFO_REQ, |
| .msg_id = msg->id |
| } |
| }; |
| struct ethosu_core_msg_network_info_req *info_req = &rpmsg.net_info_req; |
| |
| if (network != NULL) { |
| info_req->network.type = ETHOSU_CORE_NETWORK_BUFFER; |
| ethosu_core_set_size(network, &info_req->network.buffer); |
| } else { |
| info_req->network.type = ETHOSU_CORE_NETWORK_INDEX; |
| info_req->network.index = network_index; |
| } |
| |
| return rpmsg_send(mbox->ept, &rpmsg, |
| sizeof(rpmsg.header) + sizeof(rpmsg.net_info_req)); |
| } |
| |
| int ethosu_mailbox_cancel_inference(struct ethosu_mailbox *mbox, |
| struct ethosu_mailbox_msg *msg, |
| int inference_handle) |
| { |
| struct ethosu_core_rpmsg rpmsg = { |
| .header = { |
| .magic = ETHOSU_CORE_MSG_MAGIC, |
| .type = |
| ETHOSU_CORE_MSG_CANCEL_INFERENCE_REQ, |
| .msg_id = msg->id |
| }, |
| .cancel_req = { |
| .inference_handle = inference_handle |
| } |
| }; |
| |
| return rpmsg_send(mbox->ept, &rpmsg, |
| sizeof(rpmsg.header) + sizeof(rpmsg.cancel_req)); |
| } |
| |
| int ethosu_mailbox_init(struct ethosu_mailbox *mbox, |
| struct device *dev, |
| struct rpmsg_endpoint *ept) |
| { |
| mbox->dev = dev; |
| mbox->ept = ept; |
| idr_init(&mbox->msg_idr); |
| |
| return 0; |
| } |
| |
| void ethosu_mailbox_deinit(struct ethosu_mailbox *mbox) |
| {} |