1 /*
2 * Copyright 2023 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22 #include "priv.h"
23
24 #include <core/object.h>
25 #include <subdev/gsp.h>
26 #include <subdev/mmu.h>
27 #include <engine/fifo.h>
28
29 #include <nvrm/nvtypes.h>
30 #include <nvrm/535.113.01/common/sdk/nvidia/inc/nvos.h>
31
32 struct r535_ofa_obj {
33 struct nvkm_object object;
34 struct nvkm_gsp_object rm;
35 };
36
37 static void *
r535_ofa_obj_dtor(struct nvkm_object * object)38 r535_ofa_obj_dtor(struct nvkm_object *object)
39 {
40 struct r535_ofa_obj *obj = container_of(object, typeof(*obj), object);
41
42 nvkm_gsp_rm_free(&obj->rm);
43 return obj;
44 }
45
46 static const struct nvkm_object_func
47 r535_ofa_obj = {
48 .dtor = r535_ofa_obj_dtor,
49 };
50
51 static int
r535_ofa_obj_ctor(const struct nvkm_oclass * oclass,void * argv,u32 argc,struct nvkm_object ** pobject)52 r535_ofa_obj_ctor(const struct nvkm_oclass *oclass, void *argv, u32 argc,
53 struct nvkm_object **pobject)
54 {
55 struct nvkm_chan *chan = nvkm_uchan_chan(oclass->parent);
56 struct r535_ofa_obj *obj;
57 NV_OFA_ALLOCATION_PARAMETERS *args;
58
59 if (!(obj = kzalloc(sizeof(*obj), GFP_KERNEL)))
60 return -ENOMEM;
61
62 nvkm_object_ctor(&r535_ofa_obj, oclass, &obj->object);
63 *pobject = &obj->object;
64
65 args = nvkm_gsp_rm_alloc_get(&chan->rm.object, oclass->handle, oclass->base.oclass,
66 sizeof(*args), &obj->rm);
67 if (WARN_ON(IS_ERR(args)))
68 return PTR_ERR(args);
69
70 args->size = sizeof(*args);
71
72 return nvkm_gsp_rm_alloc_wr(&obj->rm, args);
73 }
74
75 static void *
r535_ofa_dtor(struct nvkm_engine * engine)76 r535_ofa_dtor(struct nvkm_engine *engine)
77 {
78 kfree(engine->func);
79 return engine;
80 }
81
82 int
r535_ofa_new(const struct nvkm_engine_func * hw,struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_engine ** pengine)83 r535_ofa_new(const struct nvkm_engine_func *hw, struct nvkm_device *device,
84 enum nvkm_subdev_type type, int inst, struct nvkm_engine **pengine)
85 {
86 struct nvkm_engine_func *rm;
87 int nclass, ret;
88
89 for (nclass = 0; hw->sclass[nclass].oclass; nclass++);
90
91 if (!(rm = kzalloc(sizeof(*rm) + (nclass + 1) * sizeof(rm->sclass[0]), GFP_KERNEL)))
92 return -ENOMEM;
93
94 rm->dtor = r535_ofa_dtor;
95 for (int i = 0; i < nclass; i++) {
96 rm->sclass[i].minver = hw->sclass[i].minver;
97 rm->sclass[i].maxver = hw->sclass[i].maxver;
98 rm->sclass[i].oclass = hw->sclass[i].oclass;
99 rm->sclass[i].ctor = r535_ofa_obj_ctor;
100 }
101
102 ret = nvkm_engine_new_(rm, device, type, inst, true, pengine);
103 if (ret)
104 kfree(rm);
105
106 return ret;
107 }
108