100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2019 MediaTek Inc.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __VPU_POOL_H__
|
||
|
|
#define __VPU_POOL_H__
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#include "vpu_drv.h"
|
||
|
|
|
||
|
|
enum vpu_pool_type {
|
||
|
|
VPU_POOL,
|
||
|
|
VPU_POOL_DEP,
|
||
|
|
};
|
||
|
|
|
||
|
|
/** Type of pools
|
||
|
|
* VPU_POOL: list of requests. For "Common Pool" and "Self-Pool"
|
||
|
|
* pool_head
|
||
|
|
* +->req1->req2->req3
|
||
|
|
*
|
||
|
|
* VPU_POOL_DEP: two-level linked-list. For "MultiProc Pool"
|
||
|
|
* 1st level: list of sub-pools that holds dependent requests
|
||
|
|
* for multi-core processing.
|
||
|
|
* 2nd level: list of requests that have dependencies.
|
||
|
|
*
|
||
|
|
* pool_head
|
||
|
|
* +->sub-pool.A
|
||
|
|
* | +->req.A1->req.A2->req.A3
|
||
|
|
* +->sub-pool.B
|
||
|
|
* | +->req.B1->req.B2
|
||
|
|
* +->sub-pool.C
|
||
|
|
* +->req.C1->req.C2->req.C3->req.C4
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct vpu_pool {
|
||
|
|
char name[16];
|
||
|
|
struct mutex lock;
|
||
|
|
struct list_head pool;
|
||
|
|
int type;
|
||
|
|
int size;
|
||
|
|
void *priv;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vpu_pool_dep {
|
||
|
|
struct list_head link; /* link in the 1st level pool */
|
||
|
|
struct list_head sub_pool; /* head of the sub-pool */
|
||
|
|
unsigned long *user;
|
||
|
|
uint64_t head_id;
|
||
|
|
uint64_t tail_id;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vpu_pool_init - Initialize VPU request pool
|
||
|
|
* @p: pointer to allocated pool
|
||
|
|
* @name: name of the pool, less than 15 characters.
|
||
|
|
* @type: VPU_POOL, or VPU_POOL_DEP
|
||
|
|
*/
|
||
|
|
void vpu_pool_init(struct vpu_pool *p, const char *name, int type);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vpu_pool_size - Return the number of requests in the pool
|
||
|
|
* @p: pointer to the pool
|
||
|
|
*/
|
||
|
|
int vpu_pool_size(struct vpu_pool *p);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vpu_pool_is_empty - Check if the pool is empty
|
||
|
|
* @p: pointer to the pool
|
||
|
|
* Returns: Non-Zero, if empty.
|
||
|
|
*/
|
||
|
|
int vpu_pool_is_empty(struct vpu_pool *p);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vpu_pool_enqueue - Enqueue a request to pool
|
||
|
|
* @p: pointer to the vpu request pool
|
||
|
|
* @req: vpu request to be enqueued
|
||
|
|
* @priority: [Optional] Pointer to the priority counter.
|
||
|
|
* The counter is incremented by 1, after enqueue a request.
|
||
|
|
* Ignored, if pool type is VPU_POOL_DEP.
|
||
|
|
*/
|
||
|
|
int vpu_pool_enqueue(struct vpu_pool *p, struct vpu_request *req,
|
||
|
|
unsigned int *priority);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vpu_pool_dequeue - Dequeue a request from pool
|
||
|
|
* @p: pointer to the vpu request pool
|
||
|
|
* @priority: [Optional] pointer to the priority counter.
|
||
|
|
* The counter is decremented by 1, after dequeue a request.
|
||
|
|
* Ignored, if pool type is VPU_POOL_DEP.
|
||
|
|
* Returns: the pointer to dequeued request.
|
||
|
|
*/
|
||
|
|
struct vpu_request *vpu_pool_dequeue(struct vpu_pool *p,
|
||
|
|
unsigned int *priority);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|