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