1 /* $NetBSD: nouveau_nvkm_core_subdev.c,v 1.5 2021/12/19 11:34:44 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 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_core_subdev.c,v 1.5 2021/12/19 11:34:44 riastradh Exp $");
28
29 #include <core/subdev.h>
30 #include <core/device.h>
31 #include <core/option.h>
32 #include <subdev/mc.h>
33
34 #include <linux/nbsd-namespace.h>
35
36 static struct lock_class_key nvkm_subdev_lock_class[NVKM_SUBDEV_NR];
37
38 const char *
39 nvkm_subdev_name[NVKM_SUBDEV_NR] = {
40 [NVKM_SUBDEV_ACR ] = "acr",
41 [NVKM_SUBDEV_BAR ] = "bar",
42 [NVKM_SUBDEV_VBIOS ] = "bios",
43 [NVKM_SUBDEV_BUS ] = "bus",
44 [NVKM_SUBDEV_CLK ] = "clk",
45 [NVKM_SUBDEV_DEVINIT ] = "devinit",
46 [NVKM_SUBDEV_FAULT ] = "fault",
47 [NVKM_SUBDEV_FB ] = "fb",
48 [NVKM_SUBDEV_FUSE ] = "fuse",
49 [NVKM_SUBDEV_GPIO ] = "gpio",
50 [NVKM_SUBDEV_GSP ] = "gsp",
51 [NVKM_SUBDEV_I2C ] = "i2c",
52 [NVKM_SUBDEV_IBUS ] = "priv",
53 [NVKM_SUBDEV_ICCSENSE] = "iccsense",
54 [NVKM_SUBDEV_INSTMEM ] = "imem",
55 [NVKM_SUBDEV_LTC ] = "ltc",
56 [NVKM_SUBDEV_MC ] = "mc",
57 [NVKM_SUBDEV_MMU ] = "mmu",
58 [NVKM_SUBDEV_MXM ] = "mxm",
59 [NVKM_SUBDEV_PCI ] = "pci",
60 [NVKM_SUBDEV_PMU ] = "pmu",
61 [NVKM_SUBDEV_THERM ] = "therm",
62 [NVKM_SUBDEV_TIMER ] = "tmr",
63 [NVKM_SUBDEV_TOP ] = "top",
64 [NVKM_SUBDEV_VOLT ] = "volt",
65 [NVKM_ENGINE_BSP ] = "bsp",
66 [NVKM_ENGINE_CE0 ] = "ce0",
67 [NVKM_ENGINE_CE1 ] = "ce1",
68 [NVKM_ENGINE_CE2 ] = "ce2",
69 [NVKM_ENGINE_CE3 ] = "ce3",
70 [NVKM_ENGINE_CE4 ] = "ce4",
71 [NVKM_ENGINE_CE5 ] = "ce5",
72 [NVKM_ENGINE_CE6 ] = "ce6",
73 [NVKM_ENGINE_CE7 ] = "ce7",
74 [NVKM_ENGINE_CE8 ] = "ce8",
75 [NVKM_ENGINE_CIPHER ] = "cipher",
76 [NVKM_ENGINE_DISP ] = "disp",
77 [NVKM_ENGINE_DMAOBJ ] = "dma",
78 [NVKM_ENGINE_FIFO ] = "fifo",
79 [NVKM_ENGINE_GR ] = "gr",
80 [NVKM_ENGINE_IFB ] = "ifb",
81 [NVKM_ENGINE_ME ] = "me",
82 [NVKM_ENGINE_MPEG ] = "mpeg",
83 [NVKM_ENGINE_MSENC ] = "msenc",
84 [NVKM_ENGINE_MSPDEC ] = "mspdec",
85 [NVKM_ENGINE_MSPPP ] = "msppp",
86 [NVKM_ENGINE_MSVLD ] = "msvld",
87 [NVKM_ENGINE_NVENC0 ] = "nvenc0",
88 [NVKM_ENGINE_NVENC1 ] = "nvenc1",
89 [NVKM_ENGINE_NVENC2 ] = "nvenc2",
90 [NVKM_ENGINE_NVDEC0 ] = "nvdec0",
91 [NVKM_ENGINE_NVDEC1 ] = "nvdec1",
92 [NVKM_ENGINE_NVDEC2 ] = "nvdec2",
93 [NVKM_ENGINE_PM ] = "pm",
94 [NVKM_ENGINE_SEC ] = "sec",
95 [NVKM_ENGINE_SEC2 ] = "sec2",
96 [NVKM_ENGINE_SW ] = "sw",
97 [NVKM_ENGINE_VIC ] = "vic",
98 [NVKM_ENGINE_VP ] = "vp",
99 };
100
101 void
nvkm_subdev_intr(struct nvkm_subdev * subdev)102 nvkm_subdev_intr(struct nvkm_subdev *subdev)
103 {
104 if (subdev->func->intr)
105 subdev->func->intr(subdev);
106 }
107
108 int
nvkm_subdev_info(struct nvkm_subdev * subdev,u64 mthd,u64 * data)109 nvkm_subdev_info(struct nvkm_subdev *subdev, u64 mthd, u64 *data)
110 {
111 if (subdev->func->info)
112 return subdev->func->info(subdev, mthd, data);
113 return -ENOSYS;
114 }
115
116 int
nvkm_subdev_fini(struct nvkm_subdev * subdev,bool suspend)117 nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend)
118 {
119 struct nvkm_device *device = subdev->device;
120 const char *action = suspend ? "suspend" : "fini";
121 s64 time;
122
123 nvkm_trace(subdev, "%s running...\n", action);
124 time = ktime_to_us(ktime_get());
125
126 if (subdev->func->fini) {
127 int ret = subdev->func->fini(subdev, suspend);
128 if (ret) {
129 nvkm_error(subdev, "%s failed, %d\n", action, ret);
130 if (suspend)
131 return ret;
132 }
133 }
134
135 nvkm_mc_reset(device, subdev->index);
136
137 time = ktime_to_us(ktime_get()) - time;
138 nvkm_trace(subdev, "%s completed in %"PRId64"us\n", action, time);
139 return 0;
140 }
141
142 int
nvkm_subdev_preinit(struct nvkm_subdev * subdev)143 nvkm_subdev_preinit(struct nvkm_subdev *subdev)
144 {
145 s64 time;
146
147 nvkm_trace(subdev, "preinit running...\n");
148 time = ktime_to_us(ktime_get());
149
150 if (subdev->func->preinit) {
151 int ret = subdev->func->preinit(subdev);
152 if (ret) {
153 nvkm_error(subdev, "preinit failed, %d\n", ret);
154 return ret;
155 }
156 }
157
158 time = ktime_to_us(ktime_get()) - time;
159 nvkm_trace(subdev, "preinit completed in %"PRId64"us\n", time);
160 return 0;
161 }
162
163 int
nvkm_subdev_init(struct nvkm_subdev * subdev)164 nvkm_subdev_init(struct nvkm_subdev *subdev)
165 {
166 s64 time;
167 int ret;
168
169 nvkm_trace(subdev, "init running...\n");
170 time = ktime_to_us(ktime_get());
171
172 if (subdev->func->oneinit && !subdev->oneinit) {
173 s64 time;
174 nvkm_trace(subdev, "one-time init running...\n");
175 time = ktime_to_us(ktime_get());
176 ret = subdev->func->oneinit(subdev);
177 if (ret) {
178 nvkm_error(subdev, "one-time init failed, %d\n", ret);
179 return ret;
180 }
181
182 subdev->oneinit = true;
183 time = ktime_to_us(ktime_get()) - time;
184 nvkm_trace(subdev, "one-time init completed in %"PRId64"us\n", time);
185 }
186
187 if (subdev->func->init) {
188 ret = subdev->func->init(subdev);
189 if (ret) {
190 nvkm_error(subdev, "init failed, %d\n", ret);
191 return ret;
192 }
193 }
194
195 time = ktime_to_us(ktime_get()) - time;
196 nvkm_trace(subdev, "init completed in %"PRId64"us\n", time);
197 return 0;
198 }
199
200 void
nvkm_subdev_del(struct nvkm_subdev ** psubdev)201 nvkm_subdev_del(struct nvkm_subdev **psubdev)
202 {
203 struct nvkm_subdev *subdev = *psubdev;
204 s64 time;
205
206 if (subdev && !WARN_ON(!subdev->func)) {
207 nvkm_trace(subdev, "destroy running...\n");
208 time = ktime_to_us(ktime_get());
209 if (subdev->func->dtor)
210 *psubdev = subdev->func->dtor(subdev);
211 time = ktime_to_us(ktime_get()) - time;
212 nvkm_trace(subdev, "destroy completed in %"PRId64"us\n", time);
213 mutex_destroy(&subdev->mutex);
214 kfree(*psubdev);
215 *psubdev = NULL;
216 }
217 }
218
219 void
nvkm_subdev_ctor(const struct nvkm_subdev_func * func,struct nvkm_device * device,int index,struct nvkm_subdev * subdev)220 nvkm_subdev_ctor(const struct nvkm_subdev_func *func,
221 struct nvkm_device *device, int index,
222 struct nvkm_subdev *subdev)
223 {
224 const char *name = nvkm_subdev_name[index];
225 subdev->func = func;
226 subdev->device = device;
227 subdev->index = index;
228
229 __mutex_init(&subdev->mutex, name, &nvkm_subdev_lock_class[index]);
230 subdev->debug = nvkm_dbgopt(device->dbgopt, name);
231 }
232