threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/*
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* Copyright (C) 2016 MediaTek Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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*/
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#include <linux/completion.h>
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#ifndef _ENGINE_REQUESTS_H_
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#define _ENGINE_REQUESTS_H_
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#define MAX_REQUEST_SIZE_PER_ENGINE 4
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#define MAX_FRAMES_PER_REQUEST 12 // 6
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/* Regulation Options */
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#define FRAME_BASE_REGULATION 0
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#define REQUEST_BASE_REGULATION 1
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#define REQUEST_REGULATION FRAME_BASE_REGULATION
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enum FRAME_STATUS_ENUM {
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FRAME_STATUS_EMPTY, /* 0 */
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FRAME_STATUS_ENQUE, /* 1 */
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FRAME_STATUS_RUNNING, /* 2 */
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FRAME_STATUS_FINISHED, /* 3 */
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FRAME_STATUS_TOTAL
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};
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enum REQUEST_STATE_ENUM {
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REQUEST_STATE_EMPTY, /* 0 */
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REQUEST_STATE_PENDING, /* 1 */
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REQUEST_STATE_RUNNING, /* 2 */
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REQUEST_STATE_FINISHED, /* 3 */
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REQUEST_STATE_TOTAL
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};
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struct ring_ctrl {
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unsigned int wcnt; /* enque */
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unsigned int rcnt; /* deque */
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unsigned int icnt; /* IRQ ringing counter w/o reset */
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unsigned int gcnt; /* GCE */
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unsigned int size;
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/* init MAX_REQUEST_SIZE_PER_ENGINE MAX_FRAMES_PER_REQUEST */
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};
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struct frame {
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enum FRAME_STATUS_ENUM state;
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void *data; /* points to engine data */
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};
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struct request {
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enum REQUEST_STATE_ENUM state;
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pid_t pid;
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struct ring_ctrl fctl;
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struct frame frames[MAX_FRAMES_PER_REQUEST];
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bool pending_run; /* pending frame in a running request */
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};
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struct engine_ops {
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int (*req_enque_cb)(struct frame *frames, void *req);
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int (*req_deque_cb)(struct frame *frames, void *req);
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int (*frame_handler)(struct frame *frame);
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int (*req_feedback_cb)(struct frame *frame);
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};
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struct engine_requests {
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struct ring_ctrl req_ctl;
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struct request reqs[MAX_REQUEST_SIZE_PER_ENGINE];
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const struct engine_ops *ops;
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struct completion req_handler_done;
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bool req_running;
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seqlock_t seqlock;
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};
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signed int dpe_init_ring_ctl(struct ring_ctrl *rctl);
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signed int dpe_init_request(struct request *req);
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signed int dpe_set_frame_data(struct frame *f, void *engine);
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signed int dpe_register_requests(struct engine_requests *eng, size_t size);
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signed int dpe_unregister_requests(struct engine_requests *eng);
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signed int dpe_request_handler(struct engine_requests *eng, spinlock_t *lock);
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/*TODO: APIs to manipulate requests */
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int dpe_set_engine_ops(struct engine_requests *eng,
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const struct engine_ops *ops);
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signed int dpe_enque_request(struct engine_requests *eng, unsigned int fcnt,
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void *req, pid_t pid);
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signed int dpe_deque_request(struct engine_requests *eng, unsigned int *fcnt,
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void *req);
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int dpe_update_request(struct engine_requests *eng, pid_t *pid);
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bool dpe_request_running(struct engine_requests *eng);
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signed int dpe_request_dump(struct engine_requests *eng);
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#endif
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