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 #define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object)
25 #include "priv.h"
26 #include "ctrl.h"
27
28 #include <core/client.h>
29 #include <subdev/fb.h>
30 #include <subdev/instmem.h>
31 #include <subdev/timer.h>
32
33 #include <nvif/class.h>
34 #include <nvif/cl0080.h>
35 #include <nvif/unpack.h>
36
37 struct nvkm_udevice {
38 struct nvkm_object object;
39 struct nvkm_device *device;
40 };
41
42 static int
nvkm_udevice_info_subdev(struct nvkm_device * device,u64 mthd,u64 * data)43 nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data)
44 {
45 struct nvkm_subdev *subdev;
46 enum nvkm_subdev_type type;
47
48 switch (mthd & NV_DEVICE_INFO_UNIT) {
49 case NV_DEVICE_HOST(0): type = NVKM_ENGINE_FIFO; break;
50 default:
51 return -EINVAL;
52 }
53
54 subdev = nvkm_device_subdev(device, type, 0);
55 if (subdev)
56 return nvkm_subdev_info(subdev, mthd, data);
57 return -ENODEV;
58 }
59
60 static void
nvkm_udevice_info_v1(struct nvkm_device * device,struct nv_device_info_v1_data * args)61 nvkm_udevice_info_v1(struct nvkm_device *device,
62 struct nv_device_info_v1_data *args)
63 {
64 if (args->mthd & NV_DEVICE_INFO_UNIT) {
65 if (nvkm_udevice_info_subdev(device, args->mthd, &args->data))
66 args->mthd = NV_DEVICE_INFO_INVALID;
67 return;
68 }
69 args->mthd = NV_DEVICE_INFO_INVALID;
70 }
71
72 static int
nvkm_udevice_info(struct nvkm_udevice * udev,void * data,u32 size)73 nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
74 {
75 struct nvkm_object *object = &udev->object;
76 struct nvkm_device *device = udev->device;
77 struct nvkm_fb *fb = device->fb;
78 struct nvkm_instmem *imem = device->imem;
79 union {
80 struct nv_device_info_v0 v0;
81 struct nv_device_info_v1 v1;
82 } *args = data;
83 int ret = -ENOSYS, i;
84
85 nvif_ioctl(object, "device info size %d\n", size);
86 if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
87 nvif_ioctl(object, "device info vers %d count %d\n",
88 args->v1.version, args->v1.count);
89 if (args->v1.count * sizeof(args->v1.data[0]) == size) {
90 for (i = 0; i < args->v1.count; i++)
91 nvkm_udevice_info_v1(device, &args->v1.data[i]);
92 return 0;
93 }
94 return -EINVAL;
95 } else
96 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
97 nvif_ioctl(object, "device info vers %d\n", args->v0.version);
98 } else
99 return ret;
100
101 switch (device->chipset) {
102 case 0x01a:
103 case 0x01f:
104 case 0x04c:
105 case 0x04e:
106 case 0x063:
107 case 0x067:
108 case 0x068:
109 case 0x0aa:
110 case 0x0ac:
111 case 0x0af:
112 args->v0.platform = NV_DEVICE_INFO_V0_IGP;
113 break;
114 default:
115 switch (device->type) {
116 case NVKM_DEVICE_PCI:
117 args->v0.platform = NV_DEVICE_INFO_V0_PCI;
118 break;
119 case NVKM_DEVICE_AGP:
120 args->v0.platform = NV_DEVICE_INFO_V0_AGP;
121 break;
122 case NVKM_DEVICE_PCIE:
123 args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
124 break;
125 case NVKM_DEVICE_TEGRA:
126 args->v0.platform = NV_DEVICE_INFO_V0_SOC;
127 break;
128 default:
129 WARN_ON(1);
130 break;
131 }
132 break;
133 }
134
135 switch (device->card_type) {
136 case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
137 case NV_10:
138 case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
139 case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
140 case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
141 case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
142 case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
143 case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
144 case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
145 case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
146 case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
147 case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
148 case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
149 case GA100: args->v0.family = NV_DEVICE_INFO_V0_AMPERE; break;
150 case AD100: args->v0.family = NV_DEVICE_INFO_V0_ADA; break;
151 default:
152 args->v0.family = 0;
153 break;
154 }
155
156 args->v0.chipset = device->chipset;
157 args->v0.revision = device->chiprev;
158 if (fb && fb->ram)
159 args->v0.ram_size = args->v0.ram_user = fb->ram->size;
160 else
161 args->v0.ram_size = args->v0.ram_user = 0;
162 if (imem && args->v0.ram_size > 0)
163 args->v0.ram_user = args->v0.ram_user - imem->reserved;
164
165 snprintf(args->v0.chip, sizeof(args->v0.chip), "%s", device->chip->name);
166 snprintf(args->v0.name, sizeof(args->v0.name), "%s", device->name);
167 return 0;
168 }
169
170 static int
nvkm_udevice_time(struct nvkm_udevice * udev,void * data,u32 size)171 nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
172 {
173 struct nvkm_object *object = &udev->object;
174 struct nvkm_device *device = udev->device;
175 union {
176 struct nv_device_time_v0 v0;
177 } *args = data;
178 int ret = -ENOSYS;
179
180 nvif_ioctl(object, "device time size %d\n", size);
181 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
182 nvif_ioctl(object, "device time vers %d\n", args->v0.version);
183 args->v0.time = nvkm_timer_read(device->timer);
184 }
185
186 return ret;
187 }
188
189 static int
nvkm_udevice_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)190 nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
191 {
192 struct nvkm_udevice *udev = nvkm_udevice(object);
193 nvif_ioctl(object, "device mthd %08x\n", mthd);
194 switch (mthd) {
195 case NV_DEVICE_V0_INFO:
196 return nvkm_udevice_info(udev, data, size);
197 case NV_DEVICE_V0_TIME:
198 return nvkm_udevice_time(udev, data, size);
199 default:
200 break;
201 }
202 return -EINVAL;
203 }
204
205 static int
nvkm_udevice_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,u64 * addr,u64 * size)206 nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
207 enum nvkm_object_map *type, u64 *addr, u64 *size)
208 {
209 struct nvkm_udevice *udev = nvkm_udevice(object);
210 struct nvkm_device *device = udev->device;
211 *type = NVKM_OBJECT_MAP_IO;
212 *addr = device->func->resource_addr(device, 0);
213 *size = device->func->resource_size(device, 0);
214 return 0;
215 }
216
217 static int
nvkm_udevice_fini(struct nvkm_object * object,bool suspend)218 nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
219 {
220 struct nvkm_udevice *udev = nvkm_udevice(object);
221 struct nvkm_device *device = udev->device;
222 int ret = 0;
223
224 mutex_lock(&device->mutex);
225 if (!--device->refcount) {
226 ret = nvkm_device_fini(device, suspend);
227 if (ret && suspend) {
228 device->refcount++;
229 goto done;
230 }
231 }
232
233 done:
234 mutex_unlock(&device->mutex);
235 return ret;
236 }
237
238 static int
nvkm_udevice_init(struct nvkm_object * object)239 nvkm_udevice_init(struct nvkm_object *object)
240 {
241 struct nvkm_udevice *udev = nvkm_udevice(object);
242 struct nvkm_device *device = udev->device;
243 int ret = 0;
244
245 mutex_lock(&device->mutex);
246 if (!device->refcount++) {
247 ret = nvkm_device_init(device);
248 if (ret) {
249 device->refcount--;
250 goto done;
251 }
252 }
253
254 done:
255 mutex_unlock(&device->mutex);
256 return ret;
257 }
258
259 static int
nvkm_udevice_child_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)260 nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
261 void *data, u32 size, struct nvkm_object **pobject)
262 {
263 struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
264 const struct nvkm_device_oclass *sclass = oclass->priv;
265 return sclass->ctor(udev->device, oclass, data, size, pobject);
266 }
267
268 static int
nvkm_udevice_child_get(struct nvkm_object * object,int index,struct nvkm_oclass * oclass)269 nvkm_udevice_child_get(struct nvkm_object *object, int index,
270 struct nvkm_oclass *oclass)
271 {
272 struct nvkm_udevice *udev = nvkm_udevice(object);
273 struct nvkm_device *device = udev->device;
274 struct nvkm_engine *engine;
275 u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
276 (1ULL << NVKM_ENGINE_FIFO) |
277 (1ULL << NVKM_ENGINE_DISP);
278 const struct nvkm_device_oclass *sclass = NULL;
279 int i;
280
281 for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
282 if (!(engine = nvkm_device_engine(device, i, 0)) ||
283 !(engine->func->base.sclass))
284 continue;
285 oclass->engine = engine;
286
287 index -= engine->func->base.sclass(oclass, index, &sclass);
288 }
289
290 if (!sclass) {
291 if (index-- == 0)
292 sclass = &nvkm_control_oclass;
293 else if (device->mmu && index-- == 0)
294 sclass = &device->mmu->user;
295 else if (device->fault && index-- == 0)
296 sclass = &device->fault->user;
297 else if (device->vfn && index-- == 0)
298 sclass = &device->vfn->user;
299 else
300 return -EINVAL;
301
302 oclass->base = sclass->base;
303 oclass->engine = NULL;
304 }
305
306 oclass->ctor = nvkm_udevice_child_new;
307 oclass->priv = sclass;
308 return 0;
309 }
310
311 static const struct nvkm_object_func
312 nvkm_udevice = {
313 .init = nvkm_udevice_init,
314 .fini = nvkm_udevice_fini,
315 .mthd = nvkm_udevice_mthd,
316 .map = nvkm_udevice_map,
317 .sclass = nvkm_udevice_child_get,
318 };
319
320 static int
nvkm_udevice_new(const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)321 nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
322 struct nvkm_object **pobject)
323 {
324 struct nvkm_client *client = oclass->client;
325 struct nvkm_udevice *udev;
326
327 if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
328 return -ENOMEM;
329 nvkm_object_ctor(&nvkm_udevice, oclass, &udev->object);
330 *pobject = &udev->object;
331
332 /* find the device that matches what the client requested */
333 udev->device = nvkm_device_find(client->device);
334 if (!udev->device)
335 return -ENODEV;
336
337 return 0;
338 }
339
340 const struct nvkm_sclass
341 nvkm_udevice_sclass = {
342 .oclass = NV_DEVICE,
343 .minver = 0,
344 .maxver = 0,
345 .ctor = nvkm_udevice_new,
346 };
347