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/* SPDX-License-Identifier: MIT */
#ifndef __NVKM_CHAN_H__
#define __NVKM_CHAN_H__
#define nvkm_chan(p) container_of((p), struct nvkm_chan, object) /*FIXME: remove later */
#include <engine/fifo.h>
struct nvkm_engn;
extern const struct nvkm_event_func nvkm_chan_event;
struct nvkm_cctx {
struct nvkm_vctx *vctx;
refcount_t refs;
refcount_t uses;
struct list_head head;
};
struct nvkm_chan_func {
const struct nvkm_chan_func_inst {
u32 size;
bool zero;
bool vmm;
} *inst;
const struct nvkm_chan_func_userd {
int bar;
u32 base;
u32 size;
void (*clear)(struct nvkm_chan *);
} *userd;
const struct nvkm_chan_func_ramfc {
const struct nvkm_ramfc_layout {
unsigned bits:6;
unsigned ctxs:5;
unsigned ctxp:8;
unsigned regs:5;
unsigned regp;
} *layout;
int (*write)(struct nvkm_chan *, u64 offset, u64 length, u32 devm, bool priv);
void (*clear)(struct nvkm_chan *);
bool ctxdma;
u32 devm;
bool priv;
} *ramfc;
void (*bind)(struct nvkm_chan *);
void (*unbind)(struct nvkm_chan *);
void (*start)(struct nvkm_chan *);
void (*stop)(struct nvkm_chan *);
void (*preempt)(struct nvkm_chan *);
u32 (*doorbell_handle)(struct nvkm_chan *);
void *(*dtor)(struct nvkm_fifo_chan *);
};
int nvkm_fifo_chan_ctor(const struct nvkm_fifo_chan_func *, struct nvkm_fifo *,
u32 size, u32 align, bool zero, u64 vm, u64 push,
u32 engm, int bar, u32 base, u32 user,
const struct nvkm_oclass *, struct nvkm_fifo_chan *);
void nvkm_chan_del(struct nvkm_chan **);
void nvkm_chan_allow(struct nvkm_chan *);
void nvkm_chan_block(struct nvkm_chan *);
void nvkm_chan_error(struct nvkm_chan *, bool preempt);
void nvkm_chan_insert(struct nvkm_chan *);
void nvkm_chan_remove(struct nvkm_chan *, bool preempt);
void nvkm_chan_remove_locked(struct nvkm_chan *);
int nvkm_chan_preempt(struct nvkm_chan *, bool wait);
int nvkm_chan_preempt_locked(struct nvkm_chan *, bool wait);
int nvkm_chan_cctx_get(struct nvkm_chan *, struct nvkm_engn *, struct nvkm_cctx **,
struct nvkm_client * /*TODO: remove need for this */);
void nvkm_chan_cctx_put(struct nvkm_chan *, struct nvkm_cctx **);
void nvkm_chan_cctx_bind(struct nvkm_chan *, struct nvkm_engn *, struct nvkm_cctx *);
#define CHAN_PRCLI(c,l,p,f,a...) CGRP_PRINT((c)->cgrp, l, p, "%04x:[%s]"f, (c)->id, (c)->name, ##a)
#define CHAN_PRINT(c,l,p,f,a...) CGRP_PRINT((c)->cgrp, l, p, "%04x:"f, (c)->id, ##a)
#define CHAN_ERROR(c,f,a...) CHAN_PRCLI((c), ERROR, err, " "f"\n", ##a)
#define CHAN_TRACE(c,f,a...) CHAN_PRINT((c), TRACE, info, " "f"\n", ##a)
#endif
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