1 /*
2 * Copyright 2021 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 <subdev/gsp.h>
25 #include <subdev/vfn.h>
26
27 #include <nvif/class.h>
28
29 static irqreturn_t
ga100_ce_intr(struct nvkm_inth * inth)30 ga100_ce_intr(struct nvkm_inth *inth)
31 {
32 struct nvkm_subdev *subdev = container_of(inth, typeof(*subdev), inth);
33
34 /*TODO*/
35 nvkm_error(subdev, "intr\n");
36 return IRQ_NONE;
37 }
38
39 int
ga100_ce_nonstall(struct nvkm_engine * engine)40 ga100_ce_nonstall(struct nvkm_engine *engine)
41 {
42 struct nvkm_subdev *subdev = &engine->subdev;
43 struct nvkm_device *device = subdev->device;
44
45 return nvkm_rd32(device, 0x104424 + (subdev->inst * 0x80)) & 0x00000fff;
46 }
47
48 int
ga100_ce_fini(struct nvkm_engine * engine,bool suspend)49 ga100_ce_fini(struct nvkm_engine *engine, bool suspend)
50 {
51 nvkm_inth_block(&engine->subdev.inth);
52 return 0;
53 }
54
55 int
ga100_ce_init(struct nvkm_engine * engine)56 ga100_ce_init(struct nvkm_engine *engine)
57 {
58 nvkm_inth_allow(&engine->subdev.inth);
59 return 0;
60 }
61
62 int
ga100_ce_oneinit(struct nvkm_engine * engine)63 ga100_ce_oneinit(struct nvkm_engine *engine)
64 {
65 struct nvkm_subdev *subdev = &engine->subdev;
66 struct nvkm_device *device = subdev->device;
67 u32 vector;
68
69 vector = nvkm_rd32(device, 0x10442c + (subdev->inst * 0x80)) & 0x00000fff;
70
71 return nvkm_inth_add(&device->vfn->intr, vector, NVKM_INTR_PRIO_NORMAL,
72 subdev, ga100_ce_intr, &subdev->inth);
73 }
74
75 static const struct nvkm_engine_func
76 ga100_ce = {
77 .oneinit = ga100_ce_oneinit,
78 .init = ga100_ce_init,
79 .fini = ga100_ce_fini,
80 .nonstall = ga100_ce_nonstall,
81 .cclass = &gv100_ce_cclass,
82 .sclass = {
83 { -1, -1, AMPERE_DMA_COPY_A },
84 {}
85 }
86 };
87
88 int
ga100_ce_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_engine ** pengine)89 ga100_ce_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
90 struct nvkm_engine **pengine)
91 {
92 if (nvkm_gsp_rm(device->gsp))
93 return r535_ce_new(&ga100_ce, device, type, inst, pengine);
94
95 return nvkm_engine_new_(&ga100_ce, device, type, inst, true, pengine);
96 }
97