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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 48/* max size of the messages we can receive */9#define MSG_BUF_SIZE 12810 11/**12 * struct nvkm_falcon_qmgr_seq - keep track of ongoing commands13 *14 * Every time a command is sent, a sequence is assigned to it so the15 * corresponding message can be matched. Upon receiving the message, a callback16 * can be called and/or a completion signaled.17 *18 * @id: sequence ID19 * @state: current state20 * @callback: callback to call upon receiving matching message21 * @completion: completion to signal after callback is called22 */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_CANCELLED30 } 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 will40 * probably not use that much simultaneously.41 */42#define NVKM_FALCON_QMGR_SEQ_NUM 1643 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 spinlock_t lock;77 78 u32 head_reg;79 u32 tail_reg;80 u32 offset;81 82 u32 position;83};84 85#define FLCNQ_PRINTK(q,l,p,f,a...) FLCN_PRINTK((q)->qmgr->falcon, l, p, "%s: "f, (q)->name, ##a)86#define FLCNQ_DBG(q,f,a...) FLCNQ_PRINTK((q), DEBUG, info, f, ##a)87#define FLCNQ_ERR(q,f,a...) FLCNQ_PRINTK((q), ERROR, err, f, ##a)88#endif89