1 /* SPDX-License-Identifier: MIT */ 2 #ifndef __NVKM_CHAN_H__ 3 #define __NVKM_CHAN_H__ 4 #include <engine/fifo.h> 5 struct nvkm_dmaobj; 6 struct nvkm_engn; 7 struct nvkm_runl; 8 9 extern const struct nvkm_event_func nvkm_chan_event; 10 11 struct nvkm_cctx { 12 struct nvkm_vctx *vctx; 13 refcount_t refs; 14 refcount_t uses; 15 16 struct list_head head; 17 }; 18 19 struct nvkm_chan_func { 20 const struct nvkm_chan_func_inst { 21 u32 size; 22 bool zero; 23 bool vmm; 24 } *inst; 25 26 const struct nvkm_chan_func_userd { 27 int bar; 28 u32 base; 29 u32 size; 30 void (*clear)(struct nvkm_chan *); 31 } *userd; 32 33 const struct nvkm_chan_func_ramfc { 34 const struct nvkm_ramfc_layout { 35 unsigned bits:6; 36 unsigned ctxs:5; 37 unsigned ctxp:8; 38 unsigned regs:5; 39 unsigned regp; 40 } *layout; 41 int (*write)(struct nvkm_chan *, u64 offset, u64 length, u32 devm, bool priv); 42 void (*clear)(struct nvkm_chan *); 43 bool ctxdma; 44 u32 devm; 45 bool priv; 46 } *ramfc; 47 48 void (*bind)(struct nvkm_chan *); 49 void (*unbind)(struct nvkm_chan *); 50 void (*start)(struct nvkm_chan *); 51 void (*stop)(struct nvkm_chan *); 52 void (*preempt)(struct nvkm_chan *); 53 u32 (*doorbell_handle)(struct nvkm_chan *); 54 }; 55 56 int nvkm_chan_new_(const struct nvkm_chan_func *, struct nvkm_runl *, int runq, struct nvkm_cgrp *, 57 const char *name, bool priv, u32 devm, struct nvkm_vmm *, struct nvkm_dmaobj *, 58 u64 offset, u64 length, struct nvkm_memory *userd, u64 userd_bar1, 59 struct nvkm_chan **); 60 void nvkm_chan_del(struct nvkm_chan **); 61 void nvkm_chan_allow(struct nvkm_chan *); 62 void nvkm_chan_block(struct nvkm_chan *); 63 void nvkm_chan_error(struct nvkm_chan *, bool preempt); 64 void nvkm_chan_insert(struct nvkm_chan *); 65 void nvkm_chan_remove(struct nvkm_chan *, bool preempt); 66 void nvkm_chan_remove_locked(struct nvkm_chan *); 67 int nvkm_chan_preempt(struct nvkm_chan *, bool wait); 68 int nvkm_chan_preempt_locked(struct nvkm_chan *, bool wait); 69 int nvkm_chan_cctx_get(struct nvkm_chan *, struct nvkm_engn *, struct nvkm_cctx **, 70 struct nvkm_client * /*TODO: remove need for this */); 71 void nvkm_chan_cctx_put(struct nvkm_chan *, struct nvkm_cctx **); 72 void nvkm_chan_cctx_bind(struct nvkm_chan *, struct nvkm_engn *, struct nvkm_cctx *); 73 74 #define CHAN_PRCLI(c,l,p,f,a...) CGRP_PRINT((c)->cgrp, l, p, "%04x:[%s]"f, (c)->id, (c)->name, ##a) 75 #define CHAN_PRINT(c,l,p,f,a...) CGRP_PRINT((c)->cgrp, l, p, "%04x:"f, (c)->id, ##a) 76 #define CHAN_ERROR(c,f,a...) CHAN_PRCLI((c), ERROR, err, " "f"\n", ##a) 77 #define CHAN_TRACE(c,f,a...) CHAN_PRINT((c), TRACE, info, " "f"\n", ##a) 78 #endif 79
