1 /*
2  * Copyright 2013 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
23  */
24 #define gf119_pmu_code gk104_pmu_code
25 #define gf119_pmu_data gk104_pmu_data
26 #include "priv.h"
27 #include "fuc/gf119.fuc4.h"
28 
29 #include <core/option.h>
30 #include <subdev/fuse.h>
31 #include <subdev/timer.h>
32 
33 static void
34 magic_(struct nvkm_device *device, u32 ctrl, int size)
35 {
36 	nvkm_wr32(device, 0x00c800, 0x00000000);
37 	nvkm_wr32(device, 0x00c808, 0x00000000);
38 	nvkm_wr32(device, 0x00c800, ctrl);
39 	nvkm_msec(device, 2000,
40 		if (nvkm_rd32(device, 0x00c800) & 0x40000000) {
41 			while (size--)
42 				nvkm_wr32(device, 0x00c804, 0x00000000);
43 			break;
44 		}
45 	);
46 	nvkm_wr32(device, 0x00c800, 0x00000000);
47 }
48 
49 static void
50 magic(struct nvkm_device *device, u32 ctrl)
51 {
52 	magic_(device, 0x8000a41f | ctrl, 6);
53 	magic_(device, 0x80000421 | ctrl, 1);
54 }
55 
56 static void
57 gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
58 {
59 	struct nvkm_device *device = pmu->subdev.device;
60 
61 	if (!(nvkm_fuse_read(device->fuse, 0x31c) & 0x00000001))
62 		return;
63 
64 	nvkm_mask(device, 0x000200, 0x00001000, 0x00000000);
65 	nvkm_rd32(device, 0x000200);
66 	nvkm_mask(device, 0x000200, 0x08000000, 0x08000000);
67 	msleep(50);
68 
69 	nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000002);
70 	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001);
71 	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000);
72 
73 	nvkm_mask(device, 0x020004, 0xc0000000, enable ? 0xc0000000 : 0x40000000);
74 	msleep(50);
75 
76 	nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000000);
77 	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001);
78 	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000);
79 
80 	nvkm_mask(device, 0x000200, 0x08000000, 0x00000000);
81 	nvkm_mask(device, 0x000200, 0x00001000, 0x00001000);
82 	nvkm_rd32(device, 0x000200);
83 
84 	if (nvkm_boolopt(device->cfgopt, "War00C800_0", true)) {
85 		switch (device->chipset) {
86 		case 0xe4:
87 			magic(device, 0x04000000);
88 			magic(device, 0x06000000);
89 			magic(device, 0x0c000000);
90 			magic(device, 0x0e000000);
91 			break;
92 		case 0xe6:
93 			magic(device, 0x02000000);
94 			magic(device, 0x04000000);
95 			magic(device, 0x0a000000);
96 			break;
97 		case 0xe7:
98 			magic(device, 0x02000000);
99 			break;
100 		default:
101 			break;
102 		}
103 	}
104 }
105 
106 static const struct nvkm_pmu_func
107 gk104_pmu = {
108 	.code.data = gk104_pmu_code,
109 	.code.size = sizeof(gk104_pmu_code),
110 	.data.data = gk104_pmu_data,
111 	.data.size = sizeof(gk104_pmu_data),
112 	.enabled = gf100_pmu_enabled,
113 	.reset = gf100_pmu_reset,
114 	.init = gt215_pmu_init,
115 	.fini = gt215_pmu_fini,
116 	.intr = gt215_pmu_intr,
117 	.send = gt215_pmu_send,
118 	.recv = gt215_pmu_recv,
119 	.pgob = gk104_pmu_pgob,
120 };
121 
122 int
123 gk104_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu)
124 {
125 	return nvkm_pmu_new_(&gk104_pmu, device, index, ppmu);
126 }
127