1 /*
2 * Copyright 2012 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 #include <core/subdev.h>
25 #include <core/device.h>
26 #include <core/option.h>
27 #include <subdev/mc.h>
28
29 static struct lock_class_key nvkm_subdev_lock_class[NVKM_SUBDEV_NR];
30
31 const char *
32 nvkm_subdev_name[NVKM_SUBDEV_NR] = {
33 [NVKM_SUBDEV_ACR ] = "acr",
34 [NVKM_SUBDEV_BAR ] = "bar",
35 [NVKM_SUBDEV_VBIOS ] = "bios",
36 [NVKM_SUBDEV_BUS ] = "bus",
37 [NVKM_SUBDEV_CLK ] = "clk",
38 [NVKM_SUBDEV_DEVINIT ] = "devinit",
39 [NVKM_SUBDEV_FAULT ] = "fault",
40 [NVKM_SUBDEV_FB ] = "fb",
41 [NVKM_SUBDEV_FUSE ] = "fuse",
42 [NVKM_SUBDEV_GPIO ] = "gpio",
43 [NVKM_SUBDEV_GSP ] = "gsp",
44 [NVKM_SUBDEV_I2C ] = "i2c",
45 [NVKM_SUBDEV_IBUS ] = "priv",
46 [NVKM_SUBDEV_ICCSENSE] = "iccsense",
47 [NVKM_SUBDEV_INSTMEM ] = "imem",
48 [NVKM_SUBDEV_LTC ] = "ltc",
49 [NVKM_SUBDEV_MC ] = "mc",
50 [NVKM_SUBDEV_MMU ] = "mmu",
51 [NVKM_SUBDEV_MXM ] = "mxm",
52 [NVKM_SUBDEV_PCI ] = "pci",
53 [NVKM_SUBDEV_PMU ] = "pmu",
54 [NVKM_SUBDEV_THERM ] = "therm",
55 [NVKM_SUBDEV_TIMER ] = "tmr",
56 [NVKM_SUBDEV_TOP ] = "top",
57 [NVKM_SUBDEV_VOLT ] = "volt",
58 [NVKM_ENGINE_BSP ] = "bsp",
59 [NVKM_ENGINE_CE0 ] = "ce0",
60 [NVKM_ENGINE_CE1 ] = "ce1",
61 [NVKM_ENGINE_CE2 ] = "ce2",
62 [NVKM_ENGINE_CE3 ] = "ce3",
63 [NVKM_ENGINE_CE4 ] = "ce4",
64 [NVKM_ENGINE_CE5 ] = "ce5",
65 [NVKM_ENGINE_CE6 ] = "ce6",
66 [NVKM_ENGINE_CE7 ] = "ce7",
67 [NVKM_ENGINE_CE8 ] = "ce8",
68 [NVKM_ENGINE_CIPHER ] = "cipher",
69 [NVKM_ENGINE_DISP ] = "disp",
70 [NVKM_ENGINE_DMAOBJ ] = "dma",
71 [NVKM_ENGINE_FIFO ] = "fifo",
72 [NVKM_ENGINE_GR ] = "gr",
73 [NVKM_ENGINE_IFB ] = "ifb",
74 [NVKM_ENGINE_ME ] = "me",
75 [NVKM_ENGINE_MPEG ] = "mpeg",
76 [NVKM_ENGINE_MSENC ] = "msenc",
77 [NVKM_ENGINE_MSPDEC ] = "mspdec",
78 [NVKM_ENGINE_MSPPP ] = "msppp",
79 [NVKM_ENGINE_MSVLD ] = "msvld",
80 [NVKM_ENGINE_NVENC0 ] = "nvenc0",
81 [NVKM_ENGINE_NVENC1 ] = "nvenc1",
82 [NVKM_ENGINE_NVENC2 ] = "nvenc2",
83 [NVKM_ENGINE_NVDEC0 ] = "nvdec0",
84 [NVKM_ENGINE_NVDEC1 ] = "nvdec1",
85 [NVKM_ENGINE_NVDEC2 ] = "nvdec2",
86 [NVKM_ENGINE_PM ] = "pm",
87 [NVKM_ENGINE_SEC ] = "sec",
88 [NVKM_ENGINE_SEC2 ] = "sec2",
89 [NVKM_ENGINE_SW ] = "sw",
90 [NVKM_ENGINE_VIC ] = "vic",
91 [NVKM_ENGINE_VP ] = "vp",
92 };
93
94 void
nvkm_subdev_intr(struct nvkm_subdev * subdev)95 nvkm_subdev_intr(struct nvkm_subdev *subdev)
96 {
97 if (subdev->func->intr)
98 subdev->func->intr(subdev);
99 }
100
101 int
nvkm_subdev_info(struct nvkm_subdev * subdev,u64 mthd,u64 * data)102 nvkm_subdev_info(struct nvkm_subdev *subdev, u64 mthd, u64 *data)
103 {
104 if (subdev->func->info)
105 return subdev->func->info(subdev, mthd, data);
106 return -ENOSYS;
107 }
108
109 int
nvkm_subdev_fini(struct nvkm_subdev * subdev,bool suspend)110 nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend)
111 {
112 struct nvkm_device *device = subdev->device;
113 const char *action = suspend ? "suspend" : "fini";
114 s64 time;
115
116 nvkm_trace(subdev, "%s running...\n", action);
117 time = ktime_to_us(ktime_get());
118
119 if (subdev->func->fini) {
120 int ret = subdev->func->fini(subdev, suspend);
121 if (ret) {
122 nvkm_error(subdev, "%s failed, %d\n", action, ret);
123 if (suspend)
124 return ret;
125 }
126 }
127
128 nvkm_mc_reset(device, subdev->index);
129
130 time = ktime_to_us(ktime_get()) - time;
131 nvkm_trace(subdev, "%s completed in %lldus\n", action, time);
132 return 0;
133 }
134
135 int
nvkm_subdev_preinit(struct nvkm_subdev * subdev)136 nvkm_subdev_preinit(struct nvkm_subdev *subdev)
137 {
138 s64 time;
139
140 nvkm_trace(subdev, "preinit running...\n");
141 time = ktime_to_us(ktime_get());
142
143 if (subdev->func->preinit) {
144 int ret = subdev->func->preinit(subdev);
145 if (ret) {
146 nvkm_error(subdev, "preinit failed, %d\n", ret);
147 return ret;
148 }
149 }
150
151 time = ktime_to_us(ktime_get()) - time;
152 nvkm_trace(subdev, "preinit completed in %lldus\n", time);
153 return 0;
154 }
155
156 int
nvkm_subdev_init(struct nvkm_subdev * subdev)157 nvkm_subdev_init(struct nvkm_subdev *subdev)
158 {
159 s64 time;
160 int ret;
161
162 nvkm_trace(subdev, "init running...\n");
163 time = ktime_to_us(ktime_get());
164
165 if (subdev->func->oneinit && !subdev->oneinit) {
166 s64 time;
167 nvkm_trace(subdev, "one-time init running...\n");
168 time = ktime_to_us(ktime_get());
169 ret = subdev->func->oneinit(subdev);
170 if (ret) {
171 nvkm_error(subdev, "one-time init failed, %d\n", ret);
172 return ret;
173 }
174
175 subdev->oneinit = true;
176 time = ktime_to_us(ktime_get()) - time;
177 nvkm_trace(subdev, "one-time init completed in %lldus\n", time);
178 }
179
180 if (subdev->func->init) {
181 ret = subdev->func->init(subdev);
182 if (ret) {
183 nvkm_error(subdev, "init failed, %d\n", ret);
184 return ret;
185 }
186 }
187
188 time = ktime_to_us(ktime_get()) - time;
189 nvkm_trace(subdev, "init completed in %lldus\n", time);
190 return 0;
191 }
192
193 void
nvkm_subdev_del(struct nvkm_subdev ** psubdev)194 nvkm_subdev_del(struct nvkm_subdev **psubdev)
195 {
196 struct nvkm_subdev *subdev = *psubdev;
197 s64 time;
198
199 if (subdev && !WARN_ON(!subdev->func)) {
200 nvkm_trace(subdev, "destroy running...\n");
201 time = ktime_to_us(ktime_get());
202 if (subdev->func->dtor)
203 *psubdev = subdev->func->dtor(subdev);
204 time = ktime_to_us(ktime_get()) - time;
205 nvkm_trace(subdev, "destroy completed in %lldus\n", time);
206 kfree(*psubdev);
207 *psubdev = NULL;
208 }
209 }
210
211 void
nvkm_subdev_ctor(const struct nvkm_subdev_func * func,struct nvkm_device * device,int index,struct nvkm_subdev * subdev)212 nvkm_subdev_ctor(const struct nvkm_subdev_func *func,
213 struct nvkm_device *device, int index,
214 struct nvkm_subdev *subdev)
215 {
216 const char *name = nvkm_subdev_name[index];
217 subdev->func = func;
218 subdev->device = device;
219 subdev->index = index;
220
221 __mutex_init(&subdev->mutex, name, &nvkm_subdev_lock_class[index]);
222 subdev->debug = nvkm_dbgopt(device->dbgopt, name);
223 }
224
225 int
nvkm_subdev_new_(const struct nvkm_subdev_func * func,struct nvkm_device * device,int index,struct nvkm_subdev ** psubdev)226 nvkm_subdev_new_(const struct nvkm_subdev_func *func,
227 struct nvkm_device *device, int index,
228 struct nvkm_subdev **psubdev)
229 {
230 if (!(*psubdev = kzalloc(sizeof(**psubdev), GFP_KERNEL)))
231 return -ENOMEM;
232 nvkm_subdev_ctor(func, device, index, *psubdev);
233 return 0;
234 }
235
