1/* SPDX-License-Identifier: MIT */
 2#ifndef __NVKM_CGRP_H__
 3#define __NVKM_CGRP_H__
 4#include <core/os.h>
 5struct nvkm_chan;
 6struct nvkm_client;
 7
 8struct nvkm_vctx {
 9	struct nvkm_ectx *ectx;
10	struct nvkm_vmm *vmm;
11	refcount_t refs;
12
13	struct nvkm_gpuobj *inst;
14	struct nvkm_vma *vma;
15
16	struct list_head head;
17};
18
19struct nvkm_ectx {
20	struct nvkm_engn *engn;
21	refcount_t refs;
22	refcount_t uses;
23
24	struct nvkm_object *object;
25
26	struct list_head head;
27};
28
29struct nvkm_cgrp {
30	const struct nvkm_cgrp_func {
31		void (*preempt)(struct nvkm_cgrp *);
32	} *func;
33	char name[64];
34	struct nvkm_runl *runl;
35	struct nvkm_vmm *vmm;
36	bool hw;
37	int id;
38	struct kref kref;
39
40	struct list_head chans;
41	int chan_nr;
42
43	spinlock_t lock; /* protects irq handler channel (group) lookup */
44
45	struct list_head ectxs;
46	struct list_head vctxs;
47	struct mutex mutex;
48
49#define NVKM_CGRP_RC_NONE    0
50#define NVKM_CGRP_RC_PENDING 1
51#define NVKM_CGRP_RC_RUNNING 2
52	atomic_t rc;
53
54	struct list_head head;
55};
56
57int nvkm_cgrp_new(struct nvkm_runl *, const char *name, struct nvkm_vmm *, bool hw,
58		  struct nvkm_cgrp **);
59struct nvkm_cgrp *nvkm_cgrp_ref(struct nvkm_cgrp *);
60void nvkm_cgrp_unref(struct nvkm_cgrp **);
61int nvkm_cgrp_vctx_get(struct nvkm_cgrp *, struct nvkm_engn *, struct nvkm_chan *,
62		       struct nvkm_vctx **, struct nvkm_client *);
63void nvkm_cgrp_vctx_put(struct nvkm_cgrp *, struct nvkm_vctx **);
64
65void nvkm_cgrp_put(struct nvkm_cgrp **, unsigned long irqflags);
66
67#define nvkm_cgrp_foreach_chan(chan,cgrp) list_for_each_entry((chan), &(cgrp)->chans, head)
68#define nvkm_cgrp_foreach_chan_safe(chan,ctmp,cgrp) \
69	list_for_each_entry_safe((chan), (ctmp), &(cgrp)->chans, head)
70
71#define CGRP_PRCLI(c,l,p,f,a...) RUNL_PRINT((c)->runl, l, p, "%04x:[%s]"f, (c)->id, (c)->name, ##a)
72#define CGRP_PRINT(c,l,p,f,a...) RUNL_PRINT((c)->runl, l, p, "%04x:"f, (c)->id, ##a)
73#define CGRP_ERROR(c,f,a...) CGRP_PRCLI((c), ERROR,    err, " "f"\n", ##a)
74#define CGRP_TRACE(c,f,a...) CGRP_PRINT((c), TRACE,   info, " "f"\n", ##a)
75#endif