1/*	$NetBSD: nouveau_nvkm_subdev_pmu_gk104.c,v 1.3 2021/12/18 23:45:41 riastradh Exp $	*/
2
3/*
4 * Copyright 2013 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
25 */
26#include <sys/cdefs.h>
27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_pmu_gk104.c,v 1.3 2021/12/18 23:45:41 riastradh Exp $");
28
29#define gf119_pmu_code gk104_pmu_code
30#define gf119_pmu_data gk104_pmu_data
31#include "priv.h"
32#include "fuc/gf119.fuc4.h"
33
34#include <core/option.h>
35#include <subdev/fuse.h>
36#include <subdev/timer.h>
37
38static void
39magic_(struct nvkm_device *device, u32 ctrl, int size)
40{
41	nvkm_wr32(device, 0x00c800, 0x00000000);
42	nvkm_wr32(device, 0x00c808, 0x00000000);
43	nvkm_wr32(device, 0x00c800, ctrl);
44	nvkm_msec(device, 2000,
45		if (nvkm_rd32(device, 0x00c800) & 0x40000000) {
46			while (size--)
47				nvkm_wr32(device, 0x00c804, 0x00000000);
48			break;
49		}
50	);
51	nvkm_wr32(device, 0x00c800, 0x00000000);
52}
53
54static void
55magic(struct nvkm_device *device, u32 ctrl)
56{
57	magic_(device, 0x8000a41f | ctrl, 6);
58	magic_(device, 0x80000421 | ctrl, 1);
59}
60
61static void
62gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
63{
64	struct nvkm_device *device = pmu->subdev.device;
65
66	if (!(nvkm_fuse_read(device->fuse, 0x31c) & 0x00000001))
67		return;
68
69	nvkm_mask(device, 0x000200, 0x00001000, 0x00000000);
70	nvkm_rd32(device, 0x000200);
71	nvkm_mask(device, 0x000200, 0x08000000, 0x08000000);
72	msleep(50);
73
74	nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000002);
75	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001);
76	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000);
77
78	nvkm_mask(device, 0x020004, 0xc0000000, enable ? 0xc0000000 : 0x40000000);
79	msleep(50);
80
81	nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000000);
82	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001);
83	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000);
84
85	nvkm_mask(device, 0x000200, 0x08000000, 0x00000000);
86	nvkm_mask(device, 0x000200, 0x00001000, 0x00001000);
87	nvkm_rd32(device, 0x000200);
88
89	if (nvkm_boolopt(device->cfgopt, "War00C800_0", true)) {
90		switch (device->chipset) {
91		case 0xe4:
92			magic(device, 0x04000000);
93			magic(device, 0x06000000);
94			magic(device, 0x0c000000);
95			magic(device, 0x0e000000);
96			break;
97		case 0xe6:
98			magic(device, 0x02000000);
99			magic(device, 0x04000000);
100			magic(device, 0x0a000000);
101			break;
102		case 0xe7:
103			magic(device, 0x02000000);
104			break;
105		default:
106			break;
107		}
108	}
109}
110
111static const struct nvkm_pmu_func
112gk104_pmu = {
113	.flcn = &gt215_pmu_flcn,
114	.code.data = gk104_pmu_code,
115	.code.size = sizeof(gk104_pmu_code),
116	.data.data = gk104_pmu_data,
117	.data.size = sizeof(gk104_pmu_data),
118	.enabled = gf100_pmu_enabled,
119	.reset = gf100_pmu_reset,
120	.init = gt215_pmu_init,
121	.fini = gt215_pmu_fini,
122	.intr = gt215_pmu_intr,
123	.send = gt215_pmu_send,
124	.recv = gt215_pmu_recv,
125	.pgob = gk104_pmu_pgob,
126};
127
128static const struct nvkm_pmu_fwif
129gk104_pmu_fwif[] = {
130	{ -1, gf100_pmu_nofw, &gk104_pmu },
131	{}
132};
133
134int
135gk104_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu)
136{
137	return nvkm_pmu_new_(gk104_pmu_fwif, device, index, ppmu);
138}
139