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06db7fded6
Exposes a bunch of the new features that became possible as a result
of the earlier commits. DRM will build on this in the future to add
support for features such as SCG ("async compute") and multi-device
rendering, as part of the work necessary to be able to write a half-
decent vulkan driver - finally.
For the moment, this just crudely ports DRM to the API changes.
- channel class interfaces now the same for all HW classes
- channel group class exposed (SCG)
- channel runqueue selector exposed (SCG)
- channel sub-device id control exposed (multi-device rendering)
- channel names in logging will reflect creating process, not fd owner
- explicit USERD allocation required by VOLTA_CHANNEL_GPFIFO_A and newer
- drm is smarter about determining the appropriate channel class to use
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef __NVKM_CHAN_H__
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#define __NVKM_CHAN_H__
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#include <engine/fifo.h>
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struct nvkm_dmaobj;
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struct nvkm_engn;
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struct nvkm_runl;
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extern const struct nvkm_event_func nvkm_chan_event;
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struct nvkm_cctx {
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struct nvkm_vctx *vctx;
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refcount_t refs;
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refcount_t uses;
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struct list_head head;
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};
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struct nvkm_chan_func {
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const struct nvkm_chan_func_inst {
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u32 size;
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bool zero;
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bool vmm;
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} *inst;
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const struct nvkm_chan_func_userd {
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int bar;
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u32 base;
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u32 size;
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void (*clear)(struct nvkm_chan *);
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} *userd;
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const struct nvkm_chan_func_ramfc {
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const struct nvkm_ramfc_layout {
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unsigned bits:6;
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unsigned ctxs:5;
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unsigned ctxp:8;
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unsigned regs:5;
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unsigned regp;
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} *layout;
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int (*write)(struct nvkm_chan *, u64 offset, u64 length, u32 devm, bool priv);
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void (*clear)(struct nvkm_chan *);
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bool ctxdma;
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u32 devm;
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bool priv;
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} *ramfc;
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void (*bind)(struct nvkm_chan *);
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void (*unbind)(struct nvkm_chan *);
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void (*start)(struct nvkm_chan *);
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void (*stop)(struct nvkm_chan *);
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void (*preempt)(struct nvkm_chan *);
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u32 (*doorbell_handle)(struct nvkm_chan *);
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};
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int nvkm_chan_new_(const struct nvkm_chan_func *, struct nvkm_runl *, int runq, struct nvkm_cgrp *,
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const char *name, bool priv, u32 devm, struct nvkm_vmm *, struct nvkm_dmaobj *,
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u64 offset, u64 length, struct nvkm_memory *userd, u64 userd_bar1,
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struct nvkm_chan **);
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void nvkm_chan_del(struct nvkm_chan **);
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void nvkm_chan_allow(struct nvkm_chan *);
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void nvkm_chan_block(struct nvkm_chan *);
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void nvkm_chan_error(struct nvkm_chan *, bool preempt);
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void nvkm_chan_insert(struct nvkm_chan *);
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void nvkm_chan_remove(struct nvkm_chan *, bool preempt);
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void nvkm_chan_remove_locked(struct nvkm_chan *);
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int nvkm_chan_preempt(struct nvkm_chan *, bool wait);
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int nvkm_chan_preempt_locked(struct nvkm_chan *, bool wait);
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int nvkm_chan_cctx_get(struct nvkm_chan *, struct nvkm_engn *, struct nvkm_cctx **,
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struct nvkm_client * /*TODO: remove need for this */);
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void nvkm_chan_cctx_put(struct nvkm_chan *, struct nvkm_cctx **);
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void nvkm_chan_cctx_bind(struct nvkm_chan *, struct nvkm_engn *, struct nvkm_cctx *);
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#define CHAN_PRCLI(c,l,p,f,a...) CGRP_PRINT((c)->cgrp, l, p, "%04x:[%s]"f, (c)->id, (c)->name, ##a)
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#define CHAN_PRINT(c,l,p,f,a...) CGRP_PRINT((c)->cgrp, l, p, "%04x:"f, (c)->id, ##a)
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#define CHAN_ERROR(c,f,a...) CHAN_PRCLI((c), ERROR, err, " "f"\n", ##a)
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#define CHAN_TRACE(c,f,a...) CHAN_PRINT((c), TRACE, info, " "f"\n", ##a)
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#endif
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