1 /* $NetBSD: nouveau_nvkm_subdev_top_gk104.c,v 1.2 2021/12/18 23:45:42 riastradh Exp $ */
2
3 /*
4 * Copyright 2016 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_top_gk104.c,v 1.2 2021/12/18 23:45:42 riastradh Exp $");
28
29 #include "priv.h"
30
31 static int
gk104_top_oneinit(struct nvkm_top * top)32 gk104_top_oneinit(struct nvkm_top *top)
33 {
34 struct nvkm_subdev *subdev = &top->subdev;
35 struct nvkm_device *device = subdev->device;
36 struct nvkm_top_device *info = NULL;
37 u32 data, type, inst;
38 int i;
39
40 for (i = 0; i < 64; i++) {
41 if (!info) {
42 if (!(info = nvkm_top_device_new(top)))
43 return -ENOMEM;
44 type = ~0;
45 inst = 0;
46 }
47
48 data = nvkm_rd32(device, 0x022700 + (i * 0x04));
49 nvkm_trace(subdev, "%02x: %08x\n", i, data);
50 switch (data & 0x00000003) {
51 case 0x00000000: /* NOT_VALID */
52 continue;
53 case 0x00000001: /* DATA */
54 inst = (data & 0x3c000000) >> 26;
55 info->addr = (data & 0x00fff000);
56 if (data & 0x00000004)
57 info->fault = (data & 0x000003f8) >> 3;
58 break;
59 case 0x00000002: /* ENUM */
60 if (data & 0x00000020)
61 info->engine = (data & 0x3c000000) >> 26;
62 if (data & 0x00000010)
63 info->runlist = (data & 0x01e00000) >> 21;
64 if (data & 0x00000008)
65 info->intr = (data & 0x000f8000) >> 15;
66 if (data & 0x00000004)
67 info->reset = (data & 0x00003e00) >> 9;
68 break;
69 case 0x00000003: /* ENGINE_TYPE */
70 type = (data & 0x7ffffffc) >> 2;
71 break;
72 }
73
74 if (data & 0x80000000)
75 continue;
76
77 /* Translate engine type to NVKM engine identifier. */
78 #define A_(A) if (inst == 0) info->index = NVKM_ENGINE_##A
79 #define B_(A) if (inst + NVKM_ENGINE_##A##0 < NVKM_ENGINE_##A##_LAST + 1) \
80 info->index = NVKM_ENGINE_##A##0 + inst
81 #define C_(A) if (inst == 0) info->index = NVKM_SUBDEV_##A
82 switch (type) {
83 case 0x00000000: A_(GR ); break;
84 case 0x00000001: A_(CE0 ); break;
85 case 0x00000002: A_(CE1 ); break;
86 case 0x00000003: A_(CE2 ); break;
87 case 0x00000008: A_(MSPDEC); break;
88 case 0x00000009: A_(MSPPP ); break;
89 case 0x0000000a: A_(MSVLD ); break;
90 case 0x0000000b: A_(MSENC ); break;
91 case 0x0000000c: A_(VIC ); break;
92 case 0x0000000d: A_(SEC2 ); break;
93 case 0x0000000e: B_(NVENC ); break;
94 case 0x0000000f: A_(NVENC1); break;
95 case 0x00000010: B_(NVDEC ); break;
96 case 0x00000013: B_(CE ); break;
97 case 0x00000014: C_(GSP ); break;
98 break;
99 default:
100 break;
101 }
102
103 nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d "
104 "engine %2d runlist %2d intr %2d "
105 "reset %2d\n", type, inst,
106 info->index == NVKM_SUBDEV_NR ? NULL :
107 nvkm_subdev_name[info->index],
108 info->addr, info->fault, info->engine, info->runlist,
109 info->intr, info->reset);
110 info = NULL;
111 }
112
113 return 0;
114 }
115
116 static const struct nvkm_top_func
117 gk104_top = {
118 .oneinit = gk104_top_oneinit,
119 };
120
121 int
gk104_top_new(struct nvkm_device * device,int index,struct nvkm_top ** ptop)122 gk104_top_new(struct nvkm_device *device, int index, struct nvkm_top **ptop)
123 {
124 return nvkm_top_new_(&gk104_top, device, index, ptop);
125 }
126