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
28 static struct lock_class_key nvkm_subdev_lock_class[NVKM_SUBDEV_NR];
29
30 const char *
31 nvkm_subdev_name[NVKM_SUBDEV_NR] = {
32 [NVKM_SUBDEV_BAR ] = "bar",
33 [NVKM_SUBDEV_VBIOS ] = "bios",
34 [NVKM_SUBDEV_BUS ] = "bus",
35 [NVKM_SUBDEV_CLK ] = "clk",
36 [NVKM_SUBDEV_DEVINIT] = "devinit",
37 [NVKM_SUBDEV_FB ] = "fb",
38 [NVKM_SUBDEV_FUSE ] = "fuse",
39 [NVKM_SUBDEV_GPIO ] = "gpio",
40 [NVKM_SUBDEV_I2C ] = "i2c",
41 [NVKM_SUBDEV_IBUS ] = "priv",
42 [NVKM_SUBDEV_INSTMEM] = "imem",
43 [NVKM_SUBDEV_LTC ] = "ltc",
44 [NVKM_SUBDEV_MC ] = "mc",
45 [NVKM_SUBDEV_MMU ] = "mmu",
46 [NVKM_SUBDEV_MXM ] = "mxm",
47 [NVKM_SUBDEV_PCI ] = "pci",
48 [NVKM_SUBDEV_PMU ] = "pmu",
49 [NVKM_SUBDEV_THERM ] = "therm",
50 [NVKM_SUBDEV_TIMER ] = "tmr",
51 [NVKM_SUBDEV_VOLT ] = "volt",
52 [NVKM_ENGINE_BSP ] = "bsp",
53 [NVKM_ENGINE_CE0 ] = "ce0",
54 [NVKM_ENGINE_CE1 ] = "ce1",
55 [NVKM_ENGINE_CE2 ] = "ce2",
56 [NVKM_ENGINE_CIPHER ] = "cipher",
57 [NVKM_ENGINE_DISP ] = "disp",
58 [NVKM_ENGINE_DMAOBJ ] = "dma",
59 [NVKM_ENGINE_FIFO ] = "fifo",
60 [NVKM_ENGINE_GR ] = "gr",
61 [NVKM_ENGINE_IFB ] = "ifb",
62 [NVKM_ENGINE_ME ] = "me",
63 [NVKM_ENGINE_MPEG ] = "mpeg",
64 [NVKM_ENGINE_MSENC ] = "msenc",
65 [NVKM_ENGINE_MSPDEC ] = "mspdec",
66 [NVKM_ENGINE_MSPPP ] = "msppp",
67 [NVKM_ENGINE_MSVLD ] = "msvld",
68 [NVKM_ENGINE_PM ] = "pm",
69 [NVKM_ENGINE_SEC ] = "sec",
70 [NVKM_ENGINE_SW ] = "sw",
71 [NVKM_ENGINE_VIC ] = "vic",
72 [NVKM_ENGINE_VP ] = "vp",
73 };
74
75 void
nvkm_subdev_intr(struct nvkm_subdev * subdev)76 nvkm_subdev_intr(struct nvkm_subdev *subdev)
77 {
78 if (subdev->func->intr)
79 subdev->func->intr(subdev);
80 }
81
82 int
nvkm_subdev_fini(struct nvkm_subdev * subdev,bool suspend)83 nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend)
84 {
85 struct nvkm_device *device = subdev->device;
86 const char *action = suspend ? "suspend" : "fini";
87 u32 pmc_enable = subdev->pmc_enable;
88 s64 time;
89
90 nvkm_trace(subdev, "%s running...\n", action);
91 time = ktime_to_us(ktime_get());
92
93 if (subdev->func->fini) {
94 int ret = subdev->func->fini(subdev, suspend);
95 if (ret) {
96 nvkm_error(subdev, "%s failed, %d\n", action, ret);
97 if (suspend)
98 return ret;
99 }
100 }
101
102 if (pmc_enable) {
103 nvkm_mask(device, 0x000200, pmc_enable, 0x00000000);
104 nvkm_mask(device, 0x000200, pmc_enable, pmc_enable);
105 nvkm_rd32(device, 0x000200);
106 }
107
108 time = ktime_to_us(ktime_get()) - time;
109 nvkm_trace(subdev, "%s completed in %lldus\n", action, time);
110 return 0;
111 }
112
113 int
nvkm_subdev_preinit(struct nvkm_subdev * subdev)114 nvkm_subdev_preinit(struct nvkm_subdev *subdev)
115 {
116 s64 time;
117
118 nvkm_trace(subdev, "preinit running...\n");
119 time = ktime_to_us(ktime_get());
120
121 if (subdev->func->preinit) {
122 int ret = subdev->func->preinit(subdev);
123 if (ret) {
124 nvkm_error(subdev, "preinit failed, %d\n", ret);
125 return ret;
126 }
127 }
128
129 time = ktime_to_us(ktime_get()) - time;
130 nvkm_trace(subdev, "preinit completed in %lldus\n", time);
131 return 0;
132 }
133
134 int
nvkm_subdev_init(struct nvkm_subdev * subdev)135 nvkm_subdev_init(struct nvkm_subdev *subdev)
136 {
137 s64 time;
138 int ret;
139
140 nvkm_trace(subdev, "init running...\n");
141 time = ktime_to_us(ktime_get());
142
143 if (subdev->func->oneinit && !subdev->oneinit) {
144 s64 time;
145 nvkm_trace(subdev, "one-time init running...\n");
146 time = ktime_to_us(ktime_get());
147 ret = subdev->func->oneinit(subdev);
148 if (ret) {
149 nvkm_error(subdev, "one-time init failed, %d\n", ret);
150 return ret;
151 }
152
153 subdev->oneinit = true;
154 time = ktime_to_us(ktime_get()) - time;
155 nvkm_trace(subdev, "one-time init completed in %lldus\n", time);
156 }
157
158 if (subdev->func->init) {
159 ret = subdev->func->init(subdev);
160 if (ret) {
161 nvkm_error(subdev, "init failed, %d\n", ret);
162 return ret;
163 }
164 }
165
166 time = ktime_to_us(ktime_get()) - time;
167 nvkm_trace(subdev, "init completed in %lldus\n", time);
168 return 0;
169 }
170
171 void
nvkm_subdev_del(struct nvkm_subdev ** psubdev)172 nvkm_subdev_del(struct nvkm_subdev **psubdev)
173 {
174 struct nvkm_subdev *subdev = *psubdev;
175 s64 time;
176
177 if (subdev && !WARN_ON(!subdev->func)) {
178 nvkm_trace(subdev, "destroy running...\n");
179 time = ktime_to_us(ktime_get());
180 if (subdev->func->dtor)
181 *psubdev = subdev->func->dtor(subdev);
182 time = ktime_to_us(ktime_get()) - time;
183 nvkm_trace(subdev, "destroy completed in %lldus\n", time);
184 kfree(*psubdev);
185 *psubdev = NULL;
186 }
187 }
188
189 void
nvkm_subdev_ctor(const struct nvkm_subdev_func * func,struct nvkm_device * device,int index,u32 pmc_enable,struct nvkm_subdev * subdev)190 nvkm_subdev_ctor(const struct nvkm_subdev_func *func,
191 struct nvkm_device *device, int index, u32 pmc_enable,
192 struct nvkm_subdev *subdev)
193 {
194 const char *name = nvkm_subdev_name[index];
195 subdev->func = func;
196 subdev->device = device;
197 subdev->index = index;
198 subdev->pmc_enable = pmc_enable;
199
200 __mutex_init(&subdev->mutex, name, &nvkm_subdev_lock_class[index]);
201 subdev->debug = nvkm_dbgopt(device->dbgopt, name);
202 }
203