kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.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 "rootnv50.h"
  25 #include "dmacnv50.h"
  26
  27 #include <core/client.h>
  28 #include <core/ramht.h>
  29 #include <subdev/timer.h>
  30
  31 #include <nvif/class.h>
  32 #include <nvif/unpack.h>
  33
  34 int
  35 nv50_disp_root_scanoutpos(NV50_DISP_MTHD_V0)
  36 {
  37         struct nvkm_device *device = disp->base.engine.subdev.device;
  38         const u32 blanke = nvkm_rd32(device, 0x610aec + (head * 0x540));
  39         const u32 blanks = nvkm_rd32(device, 0x610af4 + (head * 0x540));
  40         const u32 total  = nvkm_rd32(device, 0x610afc + (head * 0x540));
  41         union {
  42                 struct nv04_disp_scanoutpos_v0 v0;
  43         } *args = data;
  44         int ret;
  45
  46         nvif_ioctl(object, "disp scanoutpos size %d\n", size);
  47         if (nvif_unpack(args->v0, 0, 0, false)) {
  48                 nvif_ioctl(object, "disp scanoutpos vers %d\n",
  49                            args->v0.version);
  50                 args->v0.vblanke = (blanke & 0xffff0000) >> 16;
  51                 args->v0.hblanke = (blanke & 0x0000ffff);
  52                 args->v0.vblanks = (blanks & 0xffff0000) >> 16;
  53                 args->v0.hblanks = (blanks & 0x0000ffff);
  54                 args->v0.vtotal  = ( total & 0xffff0000) >> 16;
  55                 args->v0.htotal  = ( total & 0x0000ffff);
  56                 args->v0.time[0] = ktime_to_ns(ktime_get());
  57                 args->v0.vline = /* vline read locks hline */
  58                         nvkm_rd32(device, 0x616340 + (head * 0x800)) & 0xffff;
  59                 args->v0.time[1] = ktime_to_ns(ktime_get());
  60                 args->v0.hline =
  61                         nvkm_rd32(device, 0x616344 + (head * 0x800)) & 0xffff;
  62         } else
  63                 return ret;
  64
  65         return 0;
  66 }
  67
  68 int
  69 nv50_disp_root_mthd_(struct nvkm_object *object, u32 mthd, void *data, u32 size)
  70 {
  71         union {
  72                 struct nv50_disp_mthd_v0 v0;
  73                 struct nv50_disp_mthd_v1 v1;
  74         } *args = data;
  75         struct nv50_disp_root *root = nv50_disp_root(object);
  76         struct nv50_disp *disp = root->disp;
  77         const struct nv50_disp_func *func = disp->func;
  78         struct nvkm_output *outp = NULL;
  79         struct nvkm_output *temp;
  80         u16 type, mask = 0;
  81         int head, ret;
  82
  83         if (mthd != NV50_DISP_MTHD)
  84                 return -EINVAL;
  85
  86         nvif_ioctl(object, "disp mthd size %d\n", size);
  87         if (nvif_unpack(args->v0, 0, 0, true)) {
  88                 nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
  89                            args->v0.version, args->v0.method, args->v0.head);
  90                 mthd = args->v0.method;
  91                 head = args->v0.head;
  92         } else
  93         if (nvif_unpack(args->v1, 1, 1, true)) {
  94                 nvif_ioctl(object, "disp mthd vers %d mthd %02x "
  95                                    "type %04x mask %04x\n",
  96                            args->v1.version, args->v1.method,
  97                            args->v1.hasht, args->v1.hashm);
  98                 mthd = args->v1.method;
  99                 type = args->v1.hasht;
 100                 mask = args->v1.hashm;
 101                 head = ffs((mask >> 8) & 0x0f) - 1;
 102         } else
 103                 return ret;
 104
 105         if (head < 0 || head >= disp->base.head.nr)
 106                 return -ENXIO;
 107
 108         if (mask) {
 109                 list_for_each_entry(temp, &disp->base.outp, head) {
 110                         if ((temp->info.hasht         == type) &&
 111                             (temp->info.hashm & mask) == mask) {
 112                                 outp = temp;
 113                                 break;
 114                         }
 115                 }
 116                 if (outp == NULL)
 117                         return -ENXIO;
 118         }
 119
 120         switch (mthd) {
 121         case NV50_DISP_SCANOUTPOS:
 122                 return func->head.scanoutpos(object, disp, data, size, head);
 123         default:
 124                 break;
 125         }
 126
 127         switch (mthd * !!outp) {
 128         case NV50_DISP_MTHD_V1_DAC_PWR:
 129                 return func->dac.power(object, disp, data, size, head, outp);
 130         case NV50_DISP_MTHD_V1_DAC_LOAD:
 131                 return func->dac.sense(object, disp, data, size, head, outp);
 132         case NV50_DISP_MTHD_V1_SOR_PWR:
 133                 return func->sor.power(object, disp, data, size, head, outp);
 134         case NV50_DISP_MTHD_V1_SOR_HDA_ELD:
 135                 if (!func->sor.hda_eld)
 136                         return -ENODEV;
 137                 return func->sor.hda_eld(object, disp, data, size, head, outp);
 138         case NV50_DISP_MTHD_V1_SOR_HDMI_PWR:
 139                 if (!func->sor.hdmi)
 140                         return -ENODEV;
 141                 return func->sor.hdmi(object, disp, data, size, head, outp);
 142         case NV50_DISP_MTHD_V1_SOR_LVDS_SCRIPT: {
 143                 union {
 144                         struct nv50_disp_sor_lvds_script_v0 v0;
 145                 } *args = data;
 146                 nvif_ioctl(object, "disp sor lvds script size %d\n", size);
 147                 if (nvif_unpack(args->v0, 0, 0, false)) {
 148                         nvif_ioctl(object, "disp sor lvds script "
 149                                            "vers %d name %04x\n",
 150                                    args->v0.version, args->v0.script);
 151                         disp->sor.lvdsconf = args->v0.script;
 152                         return 0;
 153                 } else
 154                         return ret;
 155         }
 156                 break;
 157         case NV50_DISP_MTHD_V1_SOR_DP_PWR: {
 158                 struct nvkm_output_dp *outpdp = nvkm_output_dp(outp);
 159                 union {
 160                         struct nv50_disp_sor_dp_pwr_v0 v0;
 161                 } *args = data;
 162                 nvif_ioctl(object, "disp sor dp pwr size %d\n", size);
 163                 if (nvif_unpack(args->v0, 0, 0, false)) {
 164                         nvif_ioctl(object, "disp sor dp pwr vers %d state %d\n",
 165                                    args->v0.version, args->v0.state);
 166                         if (args->v0.state == 0) {
 167                                 nvkm_notify_put(&outpdp->irq);
 168                                 outpdp->func->lnk_pwr(outpdp, 0);
 169                                 atomic_set(&outpdp->lt.done, 0);
 170                                 return 0;
 171                         } else
 172                         if (args->v0.state != 0) {
 173                                 nvkm_output_dp_train(&outpdp->base, 0, true);
 174                                 return 0;
 175                         }
 176                 } else
 177                         return ret;
 178         }
 179                 break;
 180         case NV50_DISP_MTHD_V1_PIOR_PWR:
 181                 if (!func->pior.power)
 182                         return -ENODEV;
 183                 return func->pior.power(object, disp, data, size, head, outp);
 184         default:
 185                 break;
 186         }
 187
 188         return -EINVAL;
 189 }
 190
 191 static int
 192 nv50_disp_root_dmac_new_(const struct nvkm_oclass *oclass,
 193                          void *data, u32 size, struct nvkm_object **pobject)
 194 {
 195         const struct nv50_disp_dmac_oclass *sclass = oclass->priv;
 196         struct nv50_disp_root *root = nv50_disp_root(oclass->parent);
 197         return sclass->ctor(sclass->func, sclass->mthd, root, sclass->chid,
 198                             oclass, data, size, pobject);
 199 }
 200
 201 static int
 202 nv50_disp_root_pioc_new_(const struct nvkm_oclass *oclass,
 203                          void *data, u32 size, struct nvkm_object **pobject)
 204 {
 205         const struct nv50_disp_pioc_oclass *sclass = oclass->priv;
 206         struct nv50_disp_root *root = nv50_disp_root(oclass->parent);
 207         return sclass->ctor(sclass->func, sclass->mthd, root, sclass->chid,
 208                             oclass, data, size, pobject);
 209 }
 210
 211 static int
 212 nv50_disp_root_child_get_(struct nvkm_object *object, int index,
 213                           struct nvkm_oclass *sclass)
 214 {
 215         struct nv50_disp_root *root = nv50_disp_root(object);
 216
 217         if (index < ARRAY_SIZE(root->func->dmac)) {
 218                 sclass->base = root->func->dmac[index]->base;
 219                 sclass->priv = root->func->dmac[index];
 220                 sclass->ctor = nv50_disp_root_dmac_new_;
 221                 return 0;
 222         }
 223
 224         index -= ARRAY_SIZE(root->func->dmac);
 225
 226         if (index < ARRAY_SIZE(root->func->pioc)) {
 227                 sclass->base = root->func->pioc[index]->base;
 228                 sclass->priv = root->func->pioc[index];
 229                 sclass->ctor = nv50_disp_root_pioc_new_;
 230                 return 0;
 231         }
 232
 233         return -EINVAL;
 234 }
 235
 236 static int
 237 nv50_disp_root_fini_(struct nvkm_object *object, bool suspend)
 238 {
 239         struct nv50_disp_root *root = nv50_disp_root(object);
 240         root->func->fini(root);
 241         return 0;
 242 }
 243
 244 static int
 245 nv50_disp_root_init_(struct nvkm_object *object)
 246 {
 247         struct nv50_disp_root *root = nv50_disp_root(object);
 248         return root->func->init(root);
 249 }
 250
 251 static void *
 252 nv50_disp_root_dtor_(struct nvkm_object *object)
 253 {
 254         struct nv50_disp_root *root = nv50_disp_root(object);
 255         nvkm_ramht_del(&root->ramht);
 256         nvkm_gpuobj_del(&root->instmem);
 257         return root;
 258 }
 259
 260 static const struct nvkm_object_func
 261 nv50_disp_root_ = {
 262         .dtor = nv50_disp_root_dtor_,
 263         .init = nv50_disp_root_init_,
 264         .fini = nv50_disp_root_fini_,
 265         .mthd = nv50_disp_root_mthd_,
 266         .ntfy = nvkm_disp_ntfy,
 267         .sclass = nv50_disp_root_child_get_,
 268 };
 269
 270 int
 271 nv50_disp_root_new_(const struct nv50_disp_root_func *func,
 272                     struct nvkm_disp *base, const struct nvkm_oclass *oclass,
 273                     void *data, u32 size, struct nvkm_object **pobject)
 274 {
 275         struct nv50_disp *disp = nv50_disp(base);
 276         struct nv50_disp_root *root;
 277         struct nvkm_device *device = disp->base.engine.subdev.device;
 278         int ret;
 279
 280         if (!(root = kzalloc(sizeof(*root), GFP_KERNEL)))
 281                 return -ENOMEM;
 282         *pobject = &root->object;
 283
 284         nvkm_object_ctor(&nv50_disp_root_, oclass, &root->object);
 285         root->func = func;
 286         root->disp = disp;
 287
 288         ret = nvkm_gpuobj_new(disp->base.engine.subdev.device, 0x10000, 0x10000,
 289                               false, NULL, &root->instmem);
 290         if (ret)
 291                 return ret;
 292
 293         return nvkm_ramht_new(device, 0x1000, 0, root->instmem, &root->ramht);
 294 }
 295
 296 void
 297 nv50_disp_root_fini(struct nv50_disp_root *root)
 298 {
 299         struct nvkm_device *device = root->disp->base.engine.subdev.device;
 300         /* disable all interrupts */
 301         nvkm_wr32(device, 0x610024, 0x00000000);
 302         nvkm_wr32(device, 0x610020, 0x00000000);
 303 }
 304
 305 int
 306 nv50_disp_root_init(struct nv50_disp_root *root)
 307 {
 308         struct nv50_disp *disp = root->disp;
 309         struct nvkm_device *device = disp->base.engine.subdev.device;
 310         u32 tmp;
 311         int i;
 312
 313         /* The below segments of code copying values from one register to
 314          * another appear to inform EVO of the display capabilities or
 315          * something similar.  NFI what the 0x614004 caps are for..
 316          */
 317         tmp = nvkm_rd32(device, 0x614004);
 318         nvkm_wr32(device, 0x610184, tmp);
 319
 320         /* ... CRTC caps */
 321         for (i = 0; i < disp->base.head.nr; i++) {
 322                 tmp = nvkm_rd32(device, 0x616100 + (i * 0x800));
 323                 nvkm_wr32(device, 0x610190 + (i * 0x10), tmp);
 324                 tmp = nvkm_rd32(device, 0x616104 + (i * 0x800));
 325                 nvkm_wr32(device, 0x610194 + (i * 0x10), tmp);
 326                 tmp = nvkm_rd32(device, 0x616108 + (i * 0x800));
 327                 nvkm_wr32(device, 0x610198 + (i * 0x10), tmp);
 328                 tmp = nvkm_rd32(device, 0x61610c + (i * 0x800));
 329                 nvkm_wr32(device, 0x61019c + (i * 0x10), tmp);
 330         }
 331
 332         /* ... DAC caps */
 333         for (i = 0; i < disp->func->dac.nr; i++) {
 334                 tmp = nvkm_rd32(device, 0x61a000 + (i * 0x800));
 335                 nvkm_wr32(device, 0x6101d0 + (i * 0x04), tmp);
 336         }
 337
 338         /* ... SOR caps */
 339         for (i = 0; i < disp->func->sor.nr; i++) {
 340                 tmp = nvkm_rd32(device, 0x61c000 + (i * 0x800));
 341                 nvkm_wr32(device, 0x6101e0 + (i * 0x04), tmp);
 342         }
 343
 344         /* ... PIOR caps */
 345         for (i = 0; i < disp->func->pior.nr; i++) {
 346                 tmp = nvkm_rd32(device, 0x61e000 + (i * 0x800));
 347                 nvkm_wr32(device, 0x6101f0 + (i * 0x04), tmp);
 348         }
 349
 350         /* steal display away from vbios, or something like that */
 351         if (nvkm_rd32(device, 0x610024) & 0x00000100) {
 352                 nvkm_wr32(device, 0x610024, 0x00000100);
 353                 nvkm_mask(device, 0x6194e8, 0x00000001, 0x00000000);
 354                 if (nvkm_msec(device, 2000,
 355                         if (!(nvkm_rd32(device, 0x6194e8) & 0x00000002))
 356                                 break;
 357                 ) < 0)
 358                         return -EBUSY;
 359         }
 360
 361         /* point at display engine memory area (hash table, objects) */
 362         nvkm_wr32(device, 0x610010, (root->instmem->addr >> 8) | 9);
 363
 364         /* enable supervisor interrupts, disable everything else */
 365         nvkm_wr32(device, 0x61002c, 0x00000370);
 366         nvkm_wr32(device, 0x610028, 0x00000000);
 367         return 0;
 368 }
 369
 370 static const struct nv50_disp_root_func
 371 nv50_disp_root = {
 372         .init = nv50_disp_root_init,
 373         .fini = nv50_disp_root_fini,
 374         .dmac = {
 375                 &nv50_disp_core_oclass,
 376                 &nv50_disp_base_oclass,
 377                 &nv50_disp_ovly_oclass,
 378         },
 379         .pioc = {
 380                 &nv50_disp_oimm_oclass,
 381                 &nv50_disp_curs_oclass,
 382         },
 383 };
 384
 385 static int
 386 nv50_disp_root_new(struct nvkm_disp *disp, const struct nvkm_oclass *oclass,
 387                    void *data, u32 size, struct nvkm_object **pobject)
 388 {
 389         return nv50_disp_root_new_(&nv50_disp_root, disp, oclass,
 390                                    data, size, pobject);
 391 }
 392
 393 const struct nvkm_disp_oclass
 394 nv50_disp_root_oclass = {
 395         .base.oclass = NV50_DISP,
 396         .base.minver = -1,
 397         .base.maxver = -1,
 398         .ctor = nv50_disp_root_new,
 399 };