qmgr.h (2170B)
1/* SPDX-License-Identifier: MIT */ 2#ifndef __NVKM_FALCON_QMGR_H__ 3#define __NVKM_FALCON_QMGR_H__ 4#include <core/falcon.h> 5 6#define HDR_SIZE sizeof(struct nvfw_falcon_msg) 7#define QUEUE_ALIGNMENT 4 8/* max size of the messages we can receive */ 9#define MSG_BUF_SIZE 128 10 11/** 12 * struct nvkm_falcon_qmgr_seq - keep track of ongoing commands 13 * 14 * Every time a command is sent, a sequence is assigned to it so the 15 * corresponding message can be matched. Upon receiving the message, a callback 16 * can be called and/or a completion signaled. 17 * 18 * @id: sequence ID 19 * @state: current state 20 * @callback: callback to call upon receiving matching message 21 * @completion: completion to signal after callback is called 22 */ 23struct nvkm_falcon_qmgr_seq { 24 u16 id; 25 enum { 26 SEQ_STATE_FREE = 0, 27 SEQ_STATE_PENDING, 28 SEQ_STATE_USED, 29 SEQ_STATE_CANCELLED 30 } state; 31 bool async; 32 nvkm_falcon_qmgr_callback callback; 33 void *priv; 34 struct completion done; 35 int result; 36}; 37 38/* 39 * We can have an arbitrary number of sequences, but realistically we will 40 * probably not use that much simultaneously. 41 */ 42#define NVKM_FALCON_QMGR_SEQ_NUM 16 43 44struct nvkm_falcon_qmgr { 45 struct nvkm_falcon *falcon; 46 47 struct { 48 struct mutex mutex; 49 struct nvkm_falcon_qmgr_seq id[NVKM_FALCON_QMGR_SEQ_NUM]; 50 unsigned long tbl[BITS_TO_LONGS(NVKM_FALCON_QMGR_SEQ_NUM)]; 51 } seq; 52}; 53 54struct nvkm_falcon_qmgr_seq * 55nvkm_falcon_qmgr_seq_acquire(struct nvkm_falcon_qmgr *); 56void nvkm_falcon_qmgr_seq_release(struct nvkm_falcon_qmgr *, 57 struct nvkm_falcon_qmgr_seq *); 58 59struct nvkm_falcon_cmdq { 60 struct nvkm_falcon_qmgr *qmgr; 61 const char *name; 62 struct mutex mutex; 63 struct completion ready; 64 65 u32 head_reg; 66 u32 tail_reg; 67 u32 offset; 68 u32 size; 69 70 u32 position; 71}; 72 73struct nvkm_falcon_msgq { 74 struct nvkm_falcon_qmgr *qmgr; 75 const char *name; 76 struct mutex mutex; 77 78 u32 head_reg; 79 u32 tail_reg; 80 u32 offset; 81 82 u32 position; 83}; 84 85#define FLCNQ_PRINTK(t,q,f,a...) \ 86 FLCN_PRINTK(t, (q)->qmgr->falcon, "%s: "f, (q)->name, ##a) 87#define FLCNQ_DBG(q,f,a...) FLCNQ_PRINTK(debug, (q), f, ##a) 88#define FLCNQ_ERR(q,f,a...) FLCNQ_PRINTK(error, (q), f, ##a) 89#endif