drivers/gpu/drm/nouveau/nv40_graph.c

   1 /*
   2  * Copyright (C) 2007 Ben Skeggs.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "drmP.h"
  28 #include "drm.h"
  29 #include "nouveau_drv.h"
  30 #include "nouveau_grctx.h"
  31
  32 struct nouveau_channel *
  33 nv40_graph_channel(struct drm_device *dev)
  34 {
  35         struct drm_nouveau_private *dev_priv = dev->dev_private;
  36         uint32_t inst;
  37         int i;
  38
  39         inst = nv_rd32(dev, NV40_PGRAPH_CTXCTL_CUR);
  40         if (!(inst & NV40_PGRAPH_CTXCTL_CUR_LOADED))
  41                 return NULL;
  42         inst = (inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) << 4;
  43
  44         for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
  45                 struct nouveau_channel *chan = dev_priv->fifos[i];
  46
  47                 if (chan && chan->ramin_grctx &&
  48                     chan->ramin_grctx->instance == inst)
  49                         return chan;
  50         }
  51
  52         return NULL;
  53 }
  54
  55 int
  56 nv40_graph_create_context(struct nouveau_channel *chan)
  57 {
  58         struct drm_device *dev = chan->dev;
  59         struct drm_nouveau_private *dev_priv = dev->dev_private;
  60         struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
  61         int ret;
  62
  63         ret = nouveau_gpuobj_new_ref(dev, chan, NULL, 0, pgraph->grctx_size,
  64                                      16, NVOBJ_FLAG_ZERO_ALLOC,
  65                                      &chan->ramin_grctx);
  66         if (ret)
  67                 return ret;
  68
  69         /* Initialise default context values */
  70         dev_priv->engine.instmem.prepare_access(dev, true);
  71         if (!pgraph->ctxprog) {
  72                 struct nouveau_grctx ctx = {};
  73
  74                 ctx.dev = chan->dev;
  75                 ctx.mode = NOUVEAU_GRCTX_VALS;
  76                 ctx.data = chan->ramin_grctx->gpuobj;
  77                 nv40_grctx_init(&ctx);
  78         } else {
  79                 nouveau_grctx_vals_load(dev, chan->ramin_grctx->gpuobj);
  80         }
  81         nv_wo32(dev, chan->ramin_grctx->gpuobj, 0,
  82                      chan->ramin_grctx->gpuobj->im_pramin->start);
  83         dev_priv->engine.instmem.finish_access(dev);
  84         return 0;
  85 }
  86
  87 void
  88 nv40_graph_destroy_context(struct nouveau_channel *chan)
  89 {
  90         nouveau_gpuobj_ref_del(chan->dev, &chan->ramin_grctx);
  91 }
  92
  93 static int
  94 nv40_graph_transfer_context(struct drm_device *dev, uint32_t inst, int save)
  95 {
  96         uint32_t old_cp, tv = 1000, tmp;
  97         int i;
  98
  99         old_cp = nv_rd32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER);
 100         nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
 101
 102         tmp  = nv_rd32(dev, NV40_PGRAPH_CTXCTL_0310);
 103         tmp |= save ? NV40_PGRAPH_CTXCTL_0310_XFER_SAVE :
 104                       NV40_PGRAPH_CTXCTL_0310_XFER_LOAD;
 105         nv_wr32(dev, NV40_PGRAPH_CTXCTL_0310, tmp);
 106
 107         tmp  = nv_rd32(dev, NV40_PGRAPH_CTXCTL_0304);
 108         tmp |= NV40_PGRAPH_CTXCTL_0304_XFER_CTX;
 109         nv_wr32(dev, NV40_PGRAPH_CTXCTL_0304, tmp);
 110
 111         nouveau_wait_for_idle(dev);
 112
 113         for (i = 0; i < tv; i++) {
 114                 if (nv_rd32(dev, NV40_PGRAPH_CTXCTL_030C) == 0)
 115                         break;
 116         }
 117
 118         nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, old_cp);
 119
 120         if (i == tv) {
 121                 uint32_t ucstat = nv_rd32(dev, NV40_PGRAPH_CTXCTL_UCODE_STAT);
 122                 NV_ERROR(dev, "Failed: Instance=0x%08x Save=%d\n", inst, save);
 123                 NV_ERROR(dev, "IP: 0x%02x, Opcode: 0x%08x\n",
 124                          ucstat >> NV40_PGRAPH_CTXCTL_UCODE_STAT_IP_SHIFT,
 125                          ucstat  & NV40_PGRAPH_CTXCTL_UCODE_STAT_OP_MASK);
 126                 NV_ERROR(dev, "0x40030C = 0x%08x\n",
 127                          nv_rd32(dev, NV40_PGRAPH_CTXCTL_030C));
 128                 return -EBUSY;
 129         }
 130
 131         return 0;
 132 }
 133
 134 /* Restore the context for a specific channel into PGRAPH */
 135 int
 136 nv40_graph_load_context(struct nouveau_channel *chan)
 137 {
 138         struct drm_device *dev = chan->dev;
 139         uint32_t inst;
 140         int ret;
 141
 142         if (!chan->ramin_grctx)
 143                 return -EINVAL;
 144         inst = chan->ramin_grctx->instance >> 4;
 145
 146         ret = nv40_graph_transfer_context(dev, inst, 0);
 147         if (ret)
 148                 return ret;
 149
 150         /* 0x40032C, no idea of it's exact function.  Could simply be a
 151          * record of the currently active PGRAPH context.  It's currently
 152          * unknown as to what bit 24 does.  The nv ddx has it set, so we will
 153          * set it here too.
 154          */
 155         nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
 156         nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR,
 157                  (inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) |
 158                   NV40_PGRAPH_CTXCTL_CUR_LOADED);
 159         /* 0x32E0 records the instance address of the active FIFO's PGRAPH
 160          * context.  If at any time this doesn't match 0x40032C, you will
 161          * recieve PGRAPH_INTR_CONTEXT_SWITCH
 162          */
 163         nv_wr32(dev, NV40_PFIFO_GRCTX_INSTANCE, inst);
 164         return 0;
 165 }
 166
 167 int
 168 nv40_graph_unload_context(struct drm_device *dev)
 169 {
 170         uint32_t inst;
 171         int ret;
 172
 173         inst = nv_rd32(dev, NV40_PGRAPH_CTXCTL_CUR);
 174         if (!(inst & NV40_PGRAPH_CTXCTL_CUR_LOADED))
 175                 return 0;
 176         inst &= NV40_PGRAPH_CTXCTL_CUR_INSTANCE;
 177
 178         ret = nv40_graph_transfer_context(dev, inst, 1);
 179
 180         nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, inst);
 181         return ret;
 182 }
 183
 184 void
 185 nv40_graph_set_region_tiling(struct drm_device *dev, int i, uint32_t addr,
 186                              uint32_t size, uint32_t pitch)
 187 {
 188         struct drm_nouveau_private *dev_priv = dev->dev_private;
 189         uint32_t limit = max(1u, addr + size) - 1;
 190
 191         if (pitch)
 192                 addr |= 1;
 193
 194         switch (dev_priv->chipset) {
 195         case 0x44:
 196         case 0x4a:
 197         case 0x4e:
 198                 nv_wr32(dev, NV20_PGRAPH_TSIZE(i), pitch);
 199                 nv_wr32(dev, NV20_PGRAPH_TLIMIT(i), limit);
 200                 nv_wr32(dev, NV20_PGRAPH_TILE(i), addr);
 201                 break;
 202
 203         case 0x46:
 204         case 0x47:
 205         case 0x49:
 206         case 0x4b:
 207                 nv_wr32(dev, NV47_PGRAPH_TSIZE(i), pitch);
 208                 nv_wr32(dev, NV47_PGRAPH_TLIMIT(i), limit);
 209                 nv_wr32(dev, NV47_PGRAPH_TILE(i), addr);
 210                 nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), pitch);
 211                 nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), limit);
 212                 nv_wr32(dev, NV40_PGRAPH_TILE1(i), addr);
 213                 break;
 214
 215         default:
 216                 nv_wr32(dev, NV20_PGRAPH_TSIZE(i), pitch);
 217                 nv_wr32(dev, NV20_PGRAPH_TLIMIT(i), limit);
 218                 nv_wr32(dev, NV20_PGRAPH_TILE(i), addr);
 219                 nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), pitch);
 220                 nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), limit);
 221                 nv_wr32(dev, NV40_PGRAPH_TILE1(i), addr);
 222                 break;
 223         }
 224 }
 225
 226 /*
 227  * G70          0x47
 228  * G71          0x49
 229  * NV45         0x48
 230  * G72[M]       0x46
 231  * G73          0x4b
 232  * C51_G7X      0x4c
 233  * C51          0x4e
 234  */
 235 int
 236 nv40_graph_init(struct drm_device *dev)
 237 {
 238         struct drm_nouveau_private *dev_priv =
 239                 (struct drm_nouveau_private *)dev->dev_private;
 240         struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
 241         uint32_t vramsz;
 242         int i, j;
 243
 244         nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) &
 245                         ~NV_PMC_ENABLE_PGRAPH);
 246         nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) |
 247                          NV_PMC_ENABLE_PGRAPH);
 248
 249         if (nouveau_ctxfw) {
 250                 nouveau_grctx_prog_load(dev);
 251                 dev_priv->engine.graph.grctx_size = 175 * 1024;
 252         }
 253
 254         if (!dev_priv->engine.graph.ctxprog) {
 255                 struct nouveau_grctx ctx = {};
 256                 uint32_t *cp;
 257
 258                 cp = kmalloc(sizeof(*cp) * 256, GFP_KERNEL);
 259                 if (!cp)
 260                         return -ENOMEM;
 261
 262                 ctx.dev = dev;
 263                 ctx.mode = NOUVEAU_GRCTX_PROG;
 264                 ctx.data = cp;
 265                 ctx.ctxprog_max = 256;
 266                 nv40_grctx_init(&ctx);
 267                 dev_priv->engine.graph.grctx_size = ctx.ctxvals_pos * 4;
 268
 269                 nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
 270                 for (i = 0; i < ctx.ctxprog_len; i++)
 271                         nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, cp[i]);
 272
 273                 kfree(cp);
 274         }
 275
 276         /* No context present currently */
 277         nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, 0x00000000);
 278
 279         nv_wr32(dev, NV03_PGRAPH_INTR   , 0xFFFFFFFF);
 280         nv_wr32(dev, NV40_PGRAPH_INTR_EN, 0xFFFFFFFF);
 281
 282         nv_wr32(dev, NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF);
 283         nv_wr32(dev, NV04_PGRAPH_DEBUG_0, 0x00000000);
 284         nv_wr32(dev, NV04_PGRAPH_DEBUG_1, 0x401287c0);
 285         nv_wr32(dev, NV04_PGRAPH_DEBUG_3, 0xe0de8055);
 286         nv_wr32(dev, NV10_PGRAPH_DEBUG_4, 0x00008000);
 287         nv_wr32(dev, NV04_PGRAPH_LIMIT_VIOL_PIX, 0x00be3c5f);
 288
 289         nv_wr32(dev, NV10_PGRAPH_CTX_CONTROL, 0x10010100);
 290         nv_wr32(dev, NV10_PGRAPH_STATE      , 0xFFFFFFFF);
 291
 292         j = nv_rd32(dev, 0x1540) & 0xff;
 293         if (j) {
 294                 for (i = 0; !(j & 1); j >>= 1, i++)
 295                         ;
 296                 nv_wr32(dev, 0x405000, i);
 297         }
 298
 299         if (dev_priv->chipset == 0x40) {
 300                 nv_wr32(dev, 0x4009b0, 0x83280fff);
 301                 nv_wr32(dev, 0x4009b4, 0x000000a0);
 302         } else {
 303                 nv_wr32(dev, 0x400820, 0x83280eff);
 304                 nv_wr32(dev, 0x400824, 0x000000a0);
 305         }
 306
 307         switch (dev_priv->chipset) {
 308         case 0x40:
 309         case 0x45:
 310                 nv_wr32(dev, 0x4009b8, 0x0078e366);
 311                 nv_wr32(dev, 0x4009bc, 0x0000014c);
 312                 break;
 313         case 0x41:
 314         case 0x42: /* pciid also 0x00Cx */
 315         /* case 0x0120: XXX (pciid) */
 316                 nv_wr32(dev, 0x400828, 0x007596ff);
 317                 nv_wr32(dev, 0x40082c, 0x00000108);
 318                 break;
 319         case 0x43:
 320                 nv_wr32(dev, 0x400828, 0x0072cb77);
 321                 nv_wr32(dev, 0x40082c, 0x00000108);
 322                 break;
 323         case 0x44:
 324         case 0x46: /* G72 */
 325         case 0x4a:
 326         case 0x4c: /* G7x-based C51 */
 327         case 0x4e:
 328                 nv_wr32(dev, 0x400860, 0);
 329                 nv_wr32(dev, 0x400864, 0);
 330                 break;
 331         case 0x47: /* G70 */
 332         case 0x49: /* G71 */
 333         case 0x4b: /* G73 */
 334                 nv_wr32(dev, 0x400828, 0x07830610);
 335                 nv_wr32(dev, 0x40082c, 0x0000016A);
 336                 break;
 337         default:
 338                 break;
 339         }
 340
 341         nv_wr32(dev, 0x400b38, 0x2ffff800);
 342         nv_wr32(dev, 0x400b3c, 0x00006000);
 343
 344         /* Tiling related stuff. */
 345         switch (dev_priv->chipset) {
 346         case 0x44:
 347         case 0x4a:
 348                 nv_wr32(dev, 0x400bc4, 0x1003d888);
 349                 nv_wr32(dev, 0x400bbc, 0xb7a7b500);
 350                 break;
 351         case 0x46:
 352                 nv_wr32(dev, 0x400bc4, 0x0000e024);
 353                 nv_wr32(dev, 0x400bbc, 0xb7a7b520);
 354                 break;
 355         case 0x4c:
 356         case 0x4e:
 357         case 0x67:
 358                 nv_wr32(dev, 0x400bc4, 0x1003d888);
 359                 nv_wr32(dev, 0x400bbc, 0xb7a7b540);
 360                 break;
 361         default:
 362                 break;
 363         }
 364
 365         /* Turn all the tiling regions off. */
 366         for (i = 0; i < pfb->num_tiles; i++)
 367                 nv40_graph_set_region_tiling(dev, i, 0, 0, 0);
 368
 369         /* begin RAM config */
 370         vramsz = drm_get_resource_len(dev, 0) - 1;
 371         switch (dev_priv->chipset) {
 372         case 0x40:
 373                 nv_wr32(dev, 0x4009A4, nv_rd32(dev, NV04_PFB_CFG0));
 374                 nv_wr32(dev, 0x4009A8, nv_rd32(dev, NV04_PFB_CFG1));
 375                 nv_wr32(dev, 0x4069A4, nv_rd32(dev, NV04_PFB_CFG0));
 376                 nv_wr32(dev, 0x4069A8, nv_rd32(dev, NV04_PFB_CFG1));
 377                 nv_wr32(dev, 0x400820, 0);
 378                 nv_wr32(dev, 0x400824, 0);
 379                 nv_wr32(dev, 0x400864, vramsz);
 380                 nv_wr32(dev, 0x400868, vramsz);
 381                 break;
 382         default:
 383                 switch (dev_priv->chipset) {
 384                 case 0x46:
 385                 case 0x47:
 386                 case 0x49:
 387                 case 0x4b:
 388                         nv_wr32(dev, 0x400DF0, nv_rd32(dev, NV04_PFB_CFG0));
 389                         nv_wr32(dev, 0x400DF4, nv_rd32(dev, NV04_PFB_CFG1));
 390                         break;
 391                 default:
 392                         nv_wr32(dev, 0x4009F0, nv_rd32(dev, NV04_PFB_CFG0));
 393                         nv_wr32(dev, 0x4009F4, nv_rd32(dev, NV04_PFB_CFG1));
 394                         break;
 395                 }
 396                 nv_wr32(dev, 0x4069F0, nv_rd32(dev, NV04_PFB_CFG0));
 397                 nv_wr32(dev, 0x4069F4, nv_rd32(dev, NV04_PFB_CFG1));
 398                 nv_wr32(dev, 0x400840, 0);
 399                 nv_wr32(dev, 0x400844, 0);
 400                 nv_wr32(dev, 0x4008A0, vramsz);
 401                 nv_wr32(dev, 0x4008A4, vramsz);
 402                 break;
 403         }
 404
 405         return 0;
 406 }
 407
 408 void nv40_graph_takedown(struct drm_device *dev)
 409 {
 410         nouveau_grctx_fini(dev);
 411 }
 412
 413 struct nouveau_pgraph_object_class nv40_graph_grclass[] = {
 414         { 0x0030, false, NULL }, /* null */
 415         { 0x0039, false, NULL }, /* m2mf */
 416         { 0x004a, false, NULL }, /* gdirect */
 417         { 0x009f, false, NULL }, /* imageblit (nv12) */
 418         { 0x008a, false, NULL }, /* ifc */
 419         { 0x0089, false, NULL }, /* sifm */
 420         { 0x3089, false, NULL }, /* sifm (nv40) */
 421         { 0x0062, false, NULL }, /* surf2d */
 422         { 0x3062, false, NULL }, /* surf2d (nv40) */
 423         { 0x0043, false, NULL }, /* rop */
 424         { 0x0012, false, NULL }, /* beta1 */
 425         { 0x0072, false, NULL }, /* beta4 */
 426         { 0x0019, false, NULL }, /* cliprect */
 427         { 0x0044, false, NULL }, /* pattern */
 428         { 0x309e, false, NULL }, /* swzsurf */
 429         { 0x4097, false, NULL }, /* curie (nv40) */
 430         { 0x4497, false, NULL }, /* curie (nv44) */
 431         {}
 432 };
 433