1*4882a593Smuzhiyun /* SPDX-License-Identifier: MIT */ 2*4882a593Smuzhiyun #ifndef __NVKM_FALCON_QMGR_H__ 3*4882a593Smuzhiyun #define __NVKM_FALCON_QMGR_H__ 4*4882a593Smuzhiyun #include <core/falcon.h> 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #define HDR_SIZE sizeof(struct nvfw_falcon_msg) 7*4882a593Smuzhiyun #define QUEUE_ALIGNMENT 4 8*4882a593Smuzhiyun /* max size of the messages we can receive */ 9*4882a593Smuzhiyun #define MSG_BUF_SIZE 128 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun /** 12*4882a593Smuzhiyun * struct nvkm_falcon_qmgr_seq - keep track of ongoing commands 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * Every time a command is sent, a sequence is assigned to it so the 15*4882a593Smuzhiyun * corresponding message can be matched. Upon receiving the message, a callback 16*4882a593Smuzhiyun * can be called and/or a completion signaled. 17*4882a593Smuzhiyun * 18*4882a593Smuzhiyun * @id: sequence ID 19*4882a593Smuzhiyun * @state: current state 20*4882a593Smuzhiyun * @callback: callback to call upon receiving matching message 21*4882a593Smuzhiyun * @completion: completion to signal after callback is called 22*4882a593Smuzhiyun */ 23*4882a593Smuzhiyun struct nvkm_falcon_qmgr_seq { 24*4882a593Smuzhiyun u16 id; 25*4882a593Smuzhiyun enum { 26*4882a593Smuzhiyun SEQ_STATE_FREE = 0, 27*4882a593Smuzhiyun SEQ_STATE_PENDING, 28*4882a593Smuzhiyun SEQ_STATE_USED, 29*4882a593Smuzhiyun SEQ_STATE_CANCELLED 30*4882a593Smuzhiyun } state; 31*4882a593Smuzhiyun bool async; 32*4882a593Smuzhiyun nvkm_falcon_qmgr_callback callback; 33*4882a593Smuzhiyun void *priv; 34*4882a593Smuzhiyun struct completion done; 35*4882a593Smuzhiyun int result; 36*4882a593Smuzhiyun }; 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /* 39*4882a593Smuzhiyun * We can have an arbitrary number of sequences, but realistically we will 40*4882a593Smuzhiyun * probably not use that much simultaneously. 41*4882a593Smuzhiyun */ 42*4882a593Smuzhiyun #define NVKM_FALCON_QMGR_SEQ_NUM 16 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct nvkm_falcon_qmgr { 45*4882a593Smuzhiyun struct nvkm_falcon *falcon; 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun struct { 48*4882a593Smuzhiyun struct mutex mutex; 49*4882a593Smuzhiyun struct nvkm_falcon_qmgr_seq id[NVKM_FALCON_QMGR_SEQ_NUM]; 50*4882a593Smuzhiyun unsigned long tbl[BITS_TO_LONGS(NVKM_FALCON_QMGR_SEQ_NUM)]; 51*4882a593Smuzhiyun } seq; 52*4882a593Smuzhiyun }; 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun struct nvkm_falcon_qmgr_seq * 55*4882a593Smuzhiyun nvkm_falcon_qmgr_seq_acquire(struct nvkm_falcon_qmgr *); 56*4882a593Smuzhiyun void nvkm_falcon_qmgr_seq_release(struct nvkm_falcon_qmgr *, 57*4882a593Smuzhiyun struct nvkm_falcon_qmgr_seq *); 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun struct nvkm_falcon_cmdq { 60*4882a593Smuzhiyun struct nvkm_falcon_qmgr *qmgr; 61*4882a593Smuzhiyun const char *name; 62*4882a593Smuzhiyun struct mutex mutex; 63*4882a593Smuzhiyun struct completion ready; 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun u32 head_reg; 66*4882a593Smuzhiyun u32 tail_reg; 67*4882a593Smuzhiyun u32 offset; 68*4882a593Smuzhiyun u32 size; 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun u32 position; 71*4882a593Smuzhiyun }; 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun struct nvkm_falcon_msgq { 74*4882a593Smuzhiyun struct nvkm_falcon_qmgr *qmgr; 75*4882a593Smuzhiyun const char *name; 76*4882a593Smuzhiyun struct mutex mutex; 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun u32 head_reg; 79*4882a593Smuzhiyun u32 tail_reg; 80*4882a593Smuzhiyun u32 offset; 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun u32 position; 83*4882a593Smuzhiyun }; 84*4882a593Smuzhiyun 85*4882a593Smuzhiyun #define FLCNQ_PRINTK(t,q,f,a...) \ 86*4882a593Smuzhiyun FLCN_PRINTK(t, (q)->qmgr->falcon, "%s: "f, (q)->name, ##a) 87*4882a593Smuzhiyun #define FLCNQ_DBG(q,f,a...) FLCNQ_PRINTK(debug, (q), f, ##a) 88*4882a593Smuzhiyun #define FLCNQ_ERR(q,f,a...) FLCNQ_PRINTK(error, (q), f, ##a) 89*4882a593Smuzhiyun #endif 90