1 /*
2  * Copyright 2016 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  * Authors: Ben Skeggs <bskeggs@redhat.com>
23  */
24 #include "priv.h"
25 
26 static int
27 gk104_top_oneinit(struct nvkm_top *top)
28 {
29 	struct nvkm_subdev *subdev = &top->subdev;
30 	struct nvkm_device *device = subdev->device;
31 	struct nvkm_top_device *info = NULL;
32 	u32 data, type, inst;
33 	int i;
34 
35 	for (i = 0; i < 64; i++) {
36 		if (!info) {
37 			if (!(info = nvkm_top_device_new(top)))
38 				return -ENOMEM;
39 			type = ~0;
40 			inst = 0;
41 		}
42 
43 		data = nvkm_rd32(device, 0x022700 + (i * 0x04));
44 		nvkm_trace(subdev, "%02x: %08x\n", i, data);
45 		switch (data & 0x00000003) {
46 		case 0x00000000: /* NOT_VALID */
47 			continue;
48 		case 0x00000001: /* DATA */
49 			inst        = (data & 0x3c000000) >> 26;
50 			info->addr  = (data & 0x00fff000);
51 			if (data & 0x00000004)
52 				info->fault = (data & 0x000003f8) >> 3;
53 			break;
54 		case 0x00000002: /* ENUM */
55 			if (data & 0x00000020)
56 				info->engine  = (data & 0x3c000000) >> 26;
57 			if (data & 0x00000010)
58 				info->runlist = (data & 0x01e00000) >> 21;
59 			if (data & 0x00000008)
60 				info->intr    = (data & 0x000f8000) >> 15;
61 			if (data & 0x00000004)
62 				info->reset   = (data & 0x00003e00) >> 9;
63 			break;
64 		case 0x00000003: /* ENGINE_TYPE */
65 			type = (data & 0x7ffffffc) >> 2;
66 			break;
67 		}
68 
69 		if (data & 0x80000000)
70 			continue;
71 
72 		/* Translate engine type to NVKM engine identifier. */
73 #define A_(A) if (inst == 0) info->index = NVKM_ENGINE_##A
74 #define B_(A) if (inst + NVKM_ENGINE_##A##0 < NVKM_ENGINE_##A##_LAST + 1)      \
75 		info->index = NVKM_ENGINE_##A##0 + inst
76 #define C_(A) if (inst == 0) info->index = NVKM_SUBDEV_##A
77 		switch (type) {
78 		case 0x00000000: A_(GR    ); break;
79 		case 0x00000001: A_(CE0   ); break;
80 		case 0x00000002: A_(CE1   ); break;
81 		case 0x00000003: A_(CE2   ); break;
82 		case 0x00000008: A_(MSPDEC); break;
83 		case 0x00000009: A_(MSPPP ); break;
84 		case 0x0000000a: A_(MSVLD ); break;
85 		case 0x0000000b: A_(MSENC ); break;
86 		case 0x0000000c: A_(VIC   ); break;
87 		case 0x0000000d: A_(SEC2  ); break;
88 		case 0x0000000e: B_(NVENC ); break;
89 		case 0x0000000f: A_(NVENC1); break;
90 		case 0x00000010: B_(NVDEC ); break;
91 		case 0x00000013: B_(CE    ); break;
92 		case 0x00000014: C_(GSP   ); break;
93 			break;
94 		default:
95 			break;
96 		}
97 
98 		nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d "
99 				   "engine %2d runlist %2d intr %2d "
100 				   "reset %2d\n", type, inst,
101 			   info->index == NVKM_SUBDEV_NR ? NULL :
102 					  nvkm_subdev_name[info->index],
103 			   info->addr, info->fault, info->engine, info->runlist,
104 			   info->intr, info->reset);
105 		info = NULL;
106 	}
107 
108 	return 0;
109 }
110 
111 static const struct nvkm_top_func
112 gk104_top = {
113 	.oneinit = gk104_top_oneinit,
114 };
115 
116 int
117 gk104_top_new(struct nvkm_device *device, int index, struct nvkm_top **ptop)
118 {
119 	return nvkm_top_new_(&gk104_top, device, index, ptop);
120 }
121