drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c

   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 "channv50.h"
  25 #include "rootnv50.h"
  26
  27 #include <core/client.h>
  28 #include <core/notify.h>
  29 #include <core/oproxy.h>
  30 #include <core/ramht.h>
  31 #include <engine/dma.h>
  32
  33 #include <nvif/cl507d.h>
  34 #include <nvif/event.h>
  35 #include <nvif/unpack.h>
  36
  37 static void
  38 nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
  39                     const struct nv50_disp_mthd_list *list, int inst)
  40 {
  41         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  42         struct nvkm_device *device = subdev->device;
  43         int i;
  44
  45         for (i = 0; list->data[i].mthd; i++) {
  46                 if (list->data[i].addr) {
  47                         u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
  48                         u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
  49                         u32 mthd = list->data[i].mthd + (list->mthd * inst);
  50                         const char *name = list->data[i].name;
  51                         char mods[16];
  52
  53                         if (prev != next)
  54                                 snprintf(mods, sizeof(mods), "-> %08x", next);
  55                         else
  56                                 snprintf(mods, sizeof(mods), "%13c", ' ');
  57
  58                         nvkm_printk_(subdev, debug, info,
  59                                      "\t%04x: %08x %s%s%s\n",
  60                                      mthd, prev, mods, name ? " // " : "",
  61                                      name ? name : "");
  62                 }
  63         }
  64 }
  65
  66 void
  67 nv50_disp_chan_mthd(struct nv50_disp_chan *chan, int debug)
  68 {
  69         struct nv50_disp *disp = chan->disp;
  70         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  71         const struct nv50_disp_chan_mthd *mthd = chan->mthd;
  72         const struct nv50_disp_mthd_list *list;
  73         int i, j;
  74
  75         if (debug > subdev->debug)
  76                 return;
  77         if (!mthd)
  78                 return;
  79
  80         for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) {
  81                 u32 base = chan->head * mthd->addr;
  82                 for (j = 0; j < mthd->data[i].nr; j++, base += list->addr) {
  83                         const char *cname = mthd->name;
  84                         const char *sname = "";
  85                         char cname_[16], sname_[16];
  86
  87                         if (mthd->addr) {
  88                                 snprintf(cname_, sizeof(cname_), "%s %d",
  89                                          mthd->name, chan->chid.user);
  90                                 cname = cname_;
  91                         }
  92
  93                         if (mthd->data[i].nr > 1) {
  94                                 snprintf(sname_, sizeof(sname_), " - %s %d",
  95                                          mthd->data[i].name, j);
  96                                 sname = sname_;
  97                         }
  98
  99                         nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
 100                         nv50_disp_mthd_list(disp, debug, base, mthd->prev,
 101                                             list, j);
 102                 }
 103         }
 104 }
 105
 106 static void
 107 nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
 108 {
 109         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 110         struct nvkm_device *device = disp->base.engine.subdev.device;
 111         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
 112         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 113 }
 114
 115 static void
 116 nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
 117 {
 118         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 119         struct nvkm_device *device = disp->base.engine.subdev.device;
 120         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 121         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
 122 }
 123
 124 void
 125 nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
 126 {
 127         struct nvif_notify_uevent_rep {
 128         } rep;
 129
 130         nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
 131 }
 132
 133 int
 134 nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
 135                            struct nvkm_notify *notify)
 136 {
 137         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 138         union {
 139                 struct nvif_notify_uevent_req none;
 140         } *args = data;
 141         int ret = -ENOSYS;
 142
 143         if (!(ret = nvif_unvers(ret, &data, &size, args->none))) {
 144                 notify->size  = sizeof(struct nvif_notify_uevent_rep);
 145                 notify->types = 1;
 146                 notify->index = chan->chid.user;
 147                 return 0;
 148         }
 149
 150         return ret;
 151 }
 152
 153 const struct nvkm_event_func
 154 nv50_disp_chan_uevent = {
 155         .ctor = nv50_disp_chan_uevent_ctor,
 156         .init = nv50_disp_chan_uevent_init,
 157         .fini = nv50_disp_chan_uevent_fini,
 158 };
 159
 160 u64
 161 nv50_disp_chan_user(struct nv50_disp_chan *chan, u64 *psize)
 162 {
 163         *psize = 0x1000;
 164         return 0x640000 + (chan->chid.user * 0x1000);
 165 }
 166
 167 void
 168 nv50_disp_chan_intr(struct nv50_disp_chan *chan, bool en)
 169 {
 170         struct nvkm_device *device = chan->disp->base.engine.subdev.device;
 171         const u32 mask = 0x00010001 << chan->chid.user;
 172         const u32 data = en ? 0x00010000 << chan->chid.user : 0x00000000;
 173         nvkm_mask(device, 0x610028, mask, data);
 174 }
 175
 176 static int
 177 nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr, u32 *data)
 178 {
 179         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 180         struct nvkm_device *device = chan->disp->base.engine.subdev.device;
 181         u64 size, base = chan->func->user(chan, &size);
 182         *data = nvkm_rd32(device, base + addr);
 183         return 0;
 184 }
 185
 186 static int
 187 nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
 188 {
 189         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 190         struct nvkm_device *device = chan->disp->base.engine.subdev.device;
 191         u64 size, base = chan->func->user(chan, &size);
 192         nvkm_wr32(device, base + addr, data);
 193         return 0;
 194 }
 195
 196 static int
 197 nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
 198                     struct nvkm_event **pevent)
 199 {
 200         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 201         struct nv50_disp *disp = chan->disp;
 202         switch (type) {
 203         case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
 204                 *pevent = &disp->uevent;
 205                 return 0;
 206         default:
 207                 break;
 208         }
 209         return -EINVAL;
 210 }
 211
 212 static int
 213 nv50_disp_chan_map(struct nvkm_object *object, void *argv, u32 argc,
 214                    enum nvkm_object_map *type, u64 *addr, u64 *size)
 215 {
 216         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 217         struct nvkm_device *device = chan->disp->base.engine.subdev.device;
 218         const u64 base = device->func->resource_addr(device, 0);
 219         *type = NVKM_OBJECT_MAP_IO;
 220         *addr = base + chan->func->user(chan, size);
 221         return 0;
 222 }
 223
 224 struct nv50_disp_chan_object {
 225         struct nvkm_oproxy oproxy;
 226         struct nv50_disp *disp;
 227         int hash;
 228 };
 229
 230 static void
 231 nv50_disp_chan_child_del_(struct nvkm_oproxy *base)
 232 {
 233         struct nv50_disp_chan_object *object =
 234                 container_of(base, typeof(*object), oproxy);
 235         nvkm_ramht_remove(object->disp->ramht, object->hash);
 236 }
 237
 238 static const struct nvkm_oproxy_func
 239 nv50_disp_chan_child_func_ = {
 240         .dtor[0] = nv50_disp_chan_child_del_,
 241 };
 242
 243 static int
 244 nv50_disp_chan_child_new(const struct nvkm_oclass *oclass,
 245                          void *argv, u32 argc, struct nvkm_object **pobject)
 246 {
 247         struct nv50_disp_chan *chan = nv50_disp_chan(oclass->parent);
 248         struct nv50_disp *disp = chan->disp;
 249         struct nvkm_device *device = disp->base.engine.subdev.device;
 250         const struct nvkm_device_oclass *sclass = oclass->priv;
 251         struct nv50_disp_chan_object *object;
 252         int ret;
 253
 254         if (!(object = kzalloc(sizeof(*object), GFP_KERNEL)))
 255                 return -ENOMEM;
 256         nvkm_oproxy_ctor(&nv50_disp_chan_child_func_, oclass, &object->oproxy);
 257         object->disp = disp;
 258         *pobject = &object->oproxy.base;
 259
 260         ret = sclass->ctor(device, oclass, argv, argc, &object->oproxy.object);
 261         if (ret)
 262                 return ret;
 263
 264         object->hash = chan->func->bind(chan, object->oproxy.object,
 265                                               oclass->handle);
 266         if (object->hash < 0)
 267                 return object->hash;
 268
 269         return 0;
 270 }
 271
 272 static int
 273 nv50_disp_chan_child_get(struct nvkm_object *object, int index,
 274                          struct nvkm_oclass *sclass)
 275 {
 276         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 277         struct nvkm_device *device = chan->disp->base.engine.subdev.device;
 278         const struct nvkm_device_oclass *oclass = NULL;
 279
 280         if (chan->func->bind)
 281                 sclass->engine = nvkm_device_engine(device, NVKM_ENGINE_DMAOBJ);
 282         else
 283                 sclass->engine = NULL;
 284
 285         if (sclass->engine && sclass->engine->func->base.sclass) {
 286                 sclass->engine->func->base.sclass(sclass, index, &oclass);
 287                 if (oclass) {
 288                         sclass->ctor = nv50_disp_chan_child_new,
 289                         sclass->priv = oclass;
 290                         return 0;
 291                 }
 292         }
 293
 294         return -EINVAL;
 295 }
 296
 297 static int
 298 nv50_disp_chan_fini(struct nvkm_object *object, bool suspend)
 299 {
 300         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 301         chan->func->fini(chan);
 302         chan->func->intr(chan, false);
 303         return 0;
 304 }
 305
 306 static int
 307 nv50_disp_chan_init(struct nvkm_object *object)
 308 {
 309         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 310         chan->func->intr(chan, true);
 311         return chan->func->init(chan);
 312 }
 313
 314 static void *
 315 nv50_disp_chan_dtor(struct nvkm_object *object)
 316 {
 317         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 318         struct nv50_disp *disp = chan->disp;
 319         if (chan->chid.user >= 0)
 320                 disp->chan[chan->chid.user] = NULL;
 321         nvkm_memory_unref(&chan->memory);
 322         return chan;
 323 }
 324
 325 static const struct nvkm_object_func
 326 nv50_disp_chan = {
 327         .dtor = nv50_disp_chan_dtor,
 328         .init = nv50_disp_chan_init,
 329         .fini = nv50_disp_chan_fini,
 330         .rd32 = nv50_disp_chan_rd32,
 331         .wr32 = nv50_disp_chan_wr32,
 332         .ntfy = nv50_disp_chan_ntfy,
 333         .map = nv50_disp_chan_map,
 334         .sclass = nv50_disp_chan_child_get,
 335 };
 336
 337 int
 338 nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
 339                     const struct nv50_disp_chan_mthd *mthd,
 340                     struct nv50_disp *disp, int ctrl, int user, int head,
 341                     const struct nvkm_oclass *oclass,
 342                     struct nvkm_object **pobject)
 343 {
 344         struct nv50_disp_chan *chan;
 345
 346         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 347                 return -ENOMEM;
 348         *pobject = &chan->object;
 349
 350         nvkm_object_ctor(&nv50_disp_chan, oclass, &chan->object);
 351         chan->func = func;
 352         chan->mthd = mthd;
 353         chan->disp = disp;
 354         chan->chid.ctrl = ctrl;
 355         chan->chid.user = user;
 356         chan->head = head;
 357
 358         if (disp->chan[chan->chid.user]) {
 359                 chan->chid.user = -1;
 360                 return -EBUSY;
 361         }
 362         disp->chan[chan->chid.user] = chan;
 363         return 0;
 364 }