1 /* $NetBSD: nouveau_nvkm_engine_disp_channv50.c,v 1.6 2021/12/18 23:45:35 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_engine_disp_channv50.c,v 1.6 2021/12/18 23:45:35 riastradh Exp $");
28
29 #include "channv50.h"
30 #include "rootnv50.h"
31
32 #include <core/client.h>
33 #include <core/notify.h>
34 #include <core/oproxy.h>
35 #include <core/ramht.h>
36 #include <engine/dma.h>
37
38 #include <nvif/cl507d.h>
39 #include <nvif/event.h>
40 #include <nvif/unpack.h>
41
42 static void
nv50_disp_mthd_list(struct nv50_disp * disp,int debug,u32 base,int c,const struct nv50_disp_mthd_list * list,int inst)43 nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
44 const struct nv50_disp_mthd_list *list, int inst)
45 {
46 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
47 struct nvkm_device *device = subdev->device;
48 int i;
49
50 for (i = 0; list->data[i].mthd; i++) {
51 if (list->data[i].addr) {
52 u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
53 u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
54 u32 mthd = list->data[i].mthd + (list->mthd * inst);
55 const char *name = list->data[i].name;
56 char mods[16];
57
58 if (prev != next)
59 snprintf(mods, sizeof(mods), "-> %08x", next);
60 else
61 snprintf(mods, sizeof(mods), "%13c", ' ');
62
63 nvkm_printk_(subdev, debug, info,
64 "\t%04x: %08x %s%s%s\n",
65 mthd, prev, mods, name ? " // " : "",
66 name ? name : "");
67 }
68 }
69 }
70
71 void
nv50_disp_chan_mthd(struct nv50_disp_chan * chan,int debug)72 nv50_disp_chan_mthd(struct nv50_disp_chan *chan, int debug)
73 {
74 struct nv50_disp *disp = chan->disp;
75 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
76 const struct nv50_disp_chan_mthd *mthd = chan->mthd;
77 const struct nv50_disp_mthd_list *list;
78 int i, j;
79
80 if (debug > subdev->debug)
81 return;
82 if (!mthd)
83 return;
84
85 for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) {
86 u32 base = chan->head * mthd->addr;
87 for (j = 0; j < mthd->data[i].nr; j++, base += list->addr) {
88 const char *cname = mthd->name;
89 const char *sname = "";
90 char cname_[16], sname_[16];
91
92 if (mthd->addr) {
93 snprintf(cname_, sizeof(cname_), "%s %d",
94 mthd->name, chan->chid.user);
95 cname = cname_;
96 }
97
98 if (mthd->data[i].nr > 1) {
99 snprintf(sname_, sizeof(sname_), " - %s %d",
100 mthd->data[i].name, j);
101 sname = sname_;
102 }
103
104 nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
105 nv50_disp_mthd_list(disp, debug, base, mthd->prev,
106 list, j);
107 }
108 }
109 }
110
111 static void
nv50_disp_chan_uevent_fini(struct nvkm_event * event,int type,int index)112 nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
113 {
114 struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
115 struct nvkm_device *device = disp->base.engine.subdev.device;
116 nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
117 nvkm_wr32(device, 0x610020, 0x00000001 << index);
118 }
119
120 static void
nv50_disp_chan_uevent_init(struct nvkm_event * event,int types,int index)121 nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
122 {
123 struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
124 struct nvkm_device *device = disp->base.engine.subdev.device;
125 nvkm_wr32(device, 0x610020, 0x00000001 << index);
126 nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
127 }
128
129 void
nv50_disp_chan_uevent_send(struct nv50_disp * disp,int chid)130 nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
131 {
132 struct nvif_notify_uevent_rep {
133 } rep;
134
135 nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
136 }
137
138 int
nv50_disp_chan_uevent_ctor(struct nvkm_object * object,void * data,u32 size,struct nvkm_notify * notify)139 nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
140 struct nvkm_notify *notify)
141 {
142 struct nv50_disp_chan *chan = nv50_disp_chan(object);
143 union {
144 struct nvif_notify_uevent_req none;
145 } *args = data;
146 int ret = -ENOSYS;
147
148 if (!(ret = nvif_unvers(ret, &data, &size, args->none))) {
149 notify->size = sizeof(struct nvif_notify_uevent_rep);
150 notify->types = 1;
151 notify->index = chan->chid.user;
152 return 0;
153 }
154
155 return ret;
156 }
157
158 const struct nvkm_event_func
159 nv50_disp_chan_uevent = {
160 .ctor = nv50_disp_chan_uevent_ctor,
161 .init = nv50_disp_chan_uevent_init,
162 .fini = nv50_disp_chan_uevent_fini,
163 };
164
165 u64
nv50_disp_chan_user(struct nv50_disp_chan * chan,u64 * psize)166 nv50_disp_chan_user(struct nv50_disp_chan *chan, u64 *psize)
167 {
168 *psize = 0x1000;
169 return 0x640000 + (chan->chid.user * 0x1000);
170 }
171
172 void
nv50_disp_chan_intr(struct nv50_disp_chan * chan,bool en)173 nv50_disp_chan_intr(struct nv50_disp_chan *chan, bool en)
174 {
175 struct nvkm_device *device = chan->disp->base.engine.subdev.device;
176 const u32 mask = 0x00010001 << chan->chid.user;
177 const u32 data = en ? 0x00010000 << chan->chid.user : 0x00000000;
178 nvkm_mask(device, 0x610028, mask, data);
179 }
180
181 static int
nv50_disp_chan_rd32(struct nvkm_object * object,u64 addr,u32 * data)182 nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr, u32 *data)
183 {
184 struct nv50_disp_chan *chan = nv50_disp_chan(object);
185 struct nvkm_device *device = chan->disp->base.engine.subdev.device;
186 u64 size, base = chan->func->user(chan, &size);
187 *data = nvkm_rd32(device, base + addr);
188 return 0;
189 }
190
191 static int
nv50_disp_chan_wr32(struct nvkm_object * object,u64 addr,u32 data)192 nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
193 {
194 struct nv50_disp_chan *chan = nv50_disp_chan(object);
195 struct nvkm_device *device = chan->disp->base.engine.subdev.device;
196 u64 size, base = chan->func->user(chan, &size);
197 nvkm_wr32(device, base + addr, data);
198 return 0;
199 }
200
201 static int
nv50_disp_chan_ntfy(struct nvkm_object * object,u32 type,struct nvkm_event ** pevent)202 nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
203 struct nvkm_event **pevent)
204 {
205 struct nv50_disp_chan *chan = nv50_disp_chan(object);
206 struct nv50_disp *disp = chan->disp;
207 switch (type) {
208 case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
209 *pevent = &disp->uevent;
210 return 0;
211 default:
212 break;
213 }
214 return -EINVAL;
215 }
216
217 static int
218 #ifdef __NetBSD__
nv50_disp_chan_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,bus_space_tag_t * tagp,u64 * addr,u64 * size)219 nv50_disp_chan_map(struct nvkm_object *object, void *argv, u32 argc,
220 enum nvkm_object_map *type, bus_space_tag_t *tagp,
221 u64 *addr, u64 *size)
222 #else
223 nv50_disp_chan_map(struct nvkm_object *object, void *argv, u32 argc,
224 enum nvkm_object_map *type, u64 *addr, u64 *size)
225 #endif
226 {
227 struct nv50_disp_chan *chan = nv50_disp_chan(object);
228 struct nvkm_device *device = chan->disp->base.engine.subdev.device;
229 const u64 base = device->func->resource_addr(device, 0);
230 #ifdef __NetBSD__
231 *tagp = device->func->resource_tag(device, 0);
232 #endif
233 *type = NVKM_OBJECT_MAP_IO;
234 *addr = base + chan->func->user(chan, size);
235 return 0;
236 }
237
238 struct nv50_disp_chan_object {
239 struct nvkm_oproxy oproxy;
240 struct nv50_disp *disp;
241 int hash;
242 };
243
244 static void
nv50_disp_chan_child_del_(struct nvkm_oproxy * base)245 nv50_disp_chan_child_del_(struct nvkm_oproxy *base)
246 {
247 struct nv50_disp_chan_object *object =
248 container_of(base, typeof(*object), oproxy);
249 nvkm_ramht_remove(object->disp->ramht, object->hash);
250 }
251
252 static const struct nvkm_oproxy_func
253 nv50_disp_chan_child_func_ = {
254 .dtor[0] = nv50_disp_chan_child_del_,
255 };
256
257 static int
nv50_disp_chan_child_new(const struct nvkm_oclass * oclass,void * argv,u32 argc,struct nvkm_object ** pobject)258 nv50_disp_chan_child_new(const struct nvkm_oclass *oclass,
259 void *argv, u32 argc, struct nvkm_object **pobject)
260 {
261 struct nv50_disp_chan *chan = nv50_disp_chan(oclass->parent);
262 struct nv50_disp *disp = chan->disp;
263 struct nvkm_device *device = disp->base.engine.subdev.device;
264 const struct nvkm_device_oclass *sclass = oclass->priv;
265 struct nv50_disp_chan_object *object;
266 int ret;
267
268 if (!(object = kzalloc(sizeof(*object), GFP_KERNEL)))
269 return -ENOMEM;
270 nvkm_oproxy_ctor(&nv50_disp_chan_child_func_, oclass, &object->oproxy);
271 object->disp = disp;
272 *pobject = &object->oproxy.base;
273
274 ret = sclass->ctor(device, oclass, argv, argc, &object->oproxy.object);
275 if (ret)
276 return ret;
277
278 object->hash = chan->func->bind(chan, object->oproxy.object,
279 oclass->handle);
280 if (object->hash < 0)
281 return object->hash;
282
283 return 0;
284 }
285
286 static int
nv50_disp_chan_child_get(struct nvkm_object * object,int index,struct nvkm_oclass * sclass)287 nv50_disp_chan_child_get(struct nvkm_object *object, int index,
288 struct nvkm_oclass *sclass)
289 {
290 struct nv50_disp_chan *chan = nv50_disp_chan(object);
291 struct nvkm_device *device = chan->disp->base.engine.subdev.device;
292 const struct nvkm_device_oclass *oclass = NULL;
293
294 if (chan->func->bind)
295 sclass->engine = nvkm_device_engine(device, NVKM_ENGINE_DMAOBJ);
296 else
297 sclass->engine = NULL;
298
299 if (sclass->engine && sclass->engine->func->base.sclass) {
300 sclass->engine->func->base.sclass(sclass, index, &oclass);
301 if (oclass) {
302 sclass->ctor = nv50_disp_chan_child_new,
303 sclass->priv = oclass;
304 return 0;
305 }
306 }
307
308 return -EINVAL;
309 }
310
311 static int
nv50_disp_chan_fini(struct nvkm_object * object,bool suspend)312 nv50_disp_chan_fini(struct nvkm_object *object, bool suspend)
313 {
314 struct nv50_disp_chan *chan = nv50_disp_chan(object);
315 chan->func->fini(chan);
316 chan->func->intr(chan, false);
317 return 0;
318 }
319
320 static int
nv50_disp_chan_init(struct nvkm_object * object)321 nv50_disp_chan_init(struct nvkm_object *object)
322 {
323 struct nv50_disp_chan *chan = nv50_disp_chan(object);
324 chan->func->intr(chan, true);
325 return chan->func->init(chan);
326 }
327
328 static void *
nv50_disp_chan_dtor(struct nvkm_object * object)329 nv50_disp_chan_dtor(struct nvkm_object *object)
330 {
331 struct nv50_disp_chan *chan = nv50_disp_chan(object);
332 struct nv50_disp *disp = chan->disp;
333 if (chan->chid.user >= 0)
334 disp->chan[chan->chid.user] = NULL;
335 nvkm_memory_unref(&chan->memory);
336 return chan;
337 }
338
339 static const struct nvkm_object_func
340 nv50_disp_chan = {
341 .dtor = nv50_disp_chan_dtor,
342 .init = nv50_disp_chan_init,
343 .fini = nv50_disp_chan_fini,
344 .rd32 = nv50_disp_chan_rd32,
345 .wr32 = nv50_disp_chan_wr32,
346 .ntfy = nv50_disp_chan_ntfy,
347 .map = nv50_disp_chan_map,
348 .sclass = nv50_disp_chan_child_get,
349 };
350
351 int
nv50_disp_chan_new_(const struct nv50_disp_chan_func * func,const struct nv50_disp_chan_mthd * mthd,struct nv50_disp * disp,int ctrl,int user,int head,const struct nvkm_oclass * oclass,struct nvkm_object ** pobject)352 nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
353 const struct nv50_disp_chan_mthd *mthd,
354 struct nv50_disp *disp, int ctrl, int user, int head,
355 const struct nvkm_oclass *oclass,
356 struct nvkm_object **pobject)
357 {
358 struct nv50_disp_chan *chan;
359
360 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
361 return -ENOMEM;
362 *pobject = &chan->object;
363
364 nvkm_object_ctor(&nv50_disp_chan, oclass, &chan->object);
365 chan->func = func;
366 chan->mthd = mthd;
367 chan->disp = disp;
368 chan->chid.ctrl = ctrl;
369 chan->chid.user = user;
370 chan->head = head;
371
372 if (disp->chan[chan->chid.user]) {
373 chan->chid.user = -1;
374 return -EBUSY;
375 }
376 disp->chan[chan->chid.user] = chan;
377 return 0;
378 }
379