drivers/gpu/drm/radeon/r600_cs.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   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: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include <linux/kernel.h>
  29 #include "drmP.h"
  30 #include "radeon.h"
  31 #include "r600d.h"
  32 #include "r600_reg_safe.h"
  33
  34 static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p,
  35                                         struct radeon_cs_reloc **cs_reloc);
  36 static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p,
  37                                         struct radeon_cs_reloc **cs_reloc);
  38 typedef int (*next_reloc_t)(struct radeon_cs_parser*, struct radeon_cs_reloc**);
  39 static next_reloc_t r600_cs_packet_next_reloc = &r600_cs_packet_next_reloc_mm;
  40 extern void r600_cs_legacy_get_tiling_conf(struct drm_device *dev, u32 *npipes, u32 *nbanks, u32 *group_size);
  41
  42
  43 struct r600_cs_track {
  44         /* configuration we miror so that we use same code btw kms/ums */
  45         u32                     group_size;
  46         u32                     nbanks;
  47         u32                     npipes;
  48         /* value we track */
  49         u32                     sq_config;
  50         u32                     nsamples;
  51         u32                     cb_color_base_last[8];
  52         struct radeon_bo        *cb_color_bo[8];
  53         u32                     cb_color_bo_offset[8];
  54         struct radeon_bo        *cb_color_frag_bo[8];
  55         struct radeon_bo        *cb_color_tile_bo[8];
  56         u32                     cb_color_info[8];
  57         u32                     cb_color_size_idx[8];
  58         u32                     cb_target_mask;
  59         u32                     cb_shader_mask;
  60         u32                     cb_color_size[8];
  61         u32                     vgt_strmout_en;
  62         u32                     vgt_strmout_buffer_en;
  63         u32                     db_depth_control;
  64         u32                     db_depth_info;
  65         u32                     db_depth_size_idx;
  66         u32                     db_depth_view;
  67         u32                     db_depth_size;
  68         u32                     db_offset;
  69         struct radeon_bo        *db_bo;
  70 };
  71
  72 static inline int r600_bpe_from_format(u32 *bpe, u32 format)
  73 {
  74         switch (format) {
  75         case V_038004_COLOR_8:
  76         case V_038004_COLOR_4_4:
  77         case V_038004_COLOR_3_3_2:
  78         case V_038004_FMT_1:
  79                 *bpe = 1;
  80                 break;
  81         case V_038004_COLOR_16:
  82         case V_038004_COLOR_16_FLOAT:
  83         case V_038004_COLOR_8_8:
  84         case V_038004_COLOR_5_6_5:
  85         case V_038004_COLOR_6_5_5:
  86         case V_038004_COLOR_1_5_5_5:
  87         case V_038004_COLOR_4_4_4_4:
  88         case V_038004_COLOR_5_5_5_1:
  89                 *bpe = 2;
  90                 break;
  91         case V_038004_FMT_8_8_8:
  92                 *bpe = 3;
  93                 break;
  94         case V_038004_COLOR_32:
  95         case V_038004_COLOR_32_FLOAT:
  96         case V_038004_COLOR_16_16:
  97         case V_038004_COLOR_16_16_FLOAT:
  98         case V_038004_COLOR_8_24:
  99         case V_038004_COLOR_8_24_FLOAT:
 100         case V_038004_COLOR_24_8:
 101         case V_038004_COLOR_24_8_FLOAT:
 102         case V_038004_COLOR_10_11_11:
 103         case V_038004_COLOR_10_11_11_FLOAT:
 104         case V_038004_COLOR_11_11_10:
 105         case V_038004_COLOR_11_11_10_FLOAT:
 106         case V_038004_COLOR_2_10_10_10:
 107         case V_038004_COLOR_8_8_8_8:
 108         case V_038004_COLOR_10_10_10_2:
 109         case V_038004_FMT_5_9_9_9_SHAREDEXP:
 110         case V_038004_FMT_32_AS_8:
 111         case V_038004_FMT_32_AS_8_8:
 112                 *bpe = 4;
 113                 break;
 114         case V_038004_COLOR_X24_8_32_FLOAT:
 115         case V_038004_COLOR_32_32:
 116         case V_038004_COLOR_32_32_FLOAT:
 117         case V_038004_COLOR_16_16_16_16:
 118         case V_038004_COLOR_16_16_16_16_FLOAT:
 119                 *bpe = 8;
 120                 break;
 121         case V_038004_FMT_16_16_16:
 122         case V_038004_FMT_16_16_16_FLOAT:
 123                 *bpe = 6;
 124                 break;
 125         case V_038004_FMT_32_32_32:
 126         case V_038004_FMT_32_32_32_FLOAT:
 127                 *bpe = 12;
 128                 break;
 129         case V_038004_COLOR_32_32_32_32:
 130         case V_038004_COLOR_32_32_32_32_FLOAT:
 131                 *bpe = 16;
 132                 break;
 133         case V_038004_FMT_GB_GR:
 134         case V_038004_FMT_BG_RG:
 135         case V_038004_COLOR_INVALID:
 136         default:
 137                 *bpe = 16;
 138                 return -EINVAL;
 139         }
 140         return 0;
 141 }
 142
 143 static void r600_cs_track_init(struct r600_cs_track *track)
 144 {
 145         int i;
 146
 147         /* assume DX9 mode */
 148         track->sq_config = DX9_CONSTS;
 149         for (i = 0; i < 8; i++) {
 150                 track->cb_color_base_last[i] = 0;
 151                 track->cb_color_size[i] = 0;
 152                 track->cb_color_size_idx[i] = 0;
 153                 track->cb_color_info[i] = 0;
 154                 track->cb_color_bo[i] = NULL;
 155                 track->cb_color_bo_offset[i] = 0xFFFFFFFF;
 156         }
 157         track->cb_target_mask = 0xFFFFFFFF;
 158         track->cb_shader_mask = 0xFFFFFFFF;
 159         track->db_bo = NULL;
 160         /* assume the biggest format and that htile is enabled */
 161         track->db_depth_info = 7 | (1 << 25);
 162         track->db_depth_view = 0xFFFFC000;
 163         track->db_depth_size = 0xFFFFFFFF;
 164         track->db_depth_size_idx = 0;
 165         track->db_depth_control = 0xFFFFFFFF;
 166 }
 167
 168 static inline int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 169 {
 170         struct r600_cs_track *track = p->track;
 171         u32 bpe = 0, pitch, slice_tile_max, size, tmp, height, pitch_align;
 172         volatile u32 *ib = p->ib->ptr;
 173
 174         if (G_0280A0_TILE_MODE(track->cb_color_info[i])) {
 175                 dev_warn(p->dev, "FMASK or CMASK buffer are not supported by this kernel\n");
 176                 return -EINVAL;
 177         }
 178         size = radeon_bo_size(track->cb_color_bo[i]) - track->cb_color_bo_offset[i];
 179         if (r600_bpe_from_format(&bpe, G_0280A0_FORMAT(track->cb_color_info[i]))) {
 180                 dev_warn(p->dev, "%s:%d cb invalid format %d for %d (0x%08X)\n",
 181                          __func__, __LINE__, G_0280A0_FORMAT(track->cb_color_info[i]),
 182                         i, track->cb_color_info[i]);
 183                 return -EINVAL;
 184         }
 185         /* pitch is the number of 8x8 tiles per row */
 186         pitch = G_028060_PITCH_TILE_MAX(track->cb_color_size[i]) + 1;
 187         slice_tile_max = G_028060_SLICE_TILE_MAX(track->cb_color_size[i]) + 1;
 188         height = size / (pitch * 8 * bpe);
 189         if (height > 8192)
 190                 height = 8192;
 191         if (height > 7)
 192                 height &= ~0x7;
 193         switch (G_0280A0_ARRAY_MODE(track->cb_color_info[i])) {
 194         case V_0280A0_ARRAY_LINEAR_GENERAL:
 195                 /* technically height & 0x7 */
 196                 break;
 197         case V_0280A0_ARRAY_LINEAR_ALIGNED:
 198                 pitch_align = max((u32)64, (u32)(track->group_size / bpe)) / 8;
 199                 if (!IS_ALIGNED(pitch, pitch_align)) {
 200                         dev_warn(p->dev, "%s:%d cb pitch (%d) invalid\n",
 201                                  __func__, __LINE__, pitch);
 202                         return -EINVAL;
 203                 }
 204                 if (!IS_ALIGNED(height, 8)) {
 205                         dev_warn(p->dev, "%s:%d cb height (%d) invalid\n",
 206                                  __func__, __LINE__, height);
 207                         return -EINVAL;
 208                 }
 209                 break;
 210         case V_0280A0_ARRAY_1D_TILED_THIN1:
 211                 pitch_align = max((u32)8, (u32)(track->group_size / (8 * bpe * track->nsamples))) / 8;
 212                 if (!IS_ALIGNED(pitch, pitch_align)) {
 213                         dev_warn(p->dev, "%s:%d cb pitch (%d) invalid\n",
 214                                  __func__, __LINE__, pitch);
 215                         return -EINVAL;
 216                 }
 217                 if (!IS_ALIGNED(height, 8)) {
 218                         dev_warn(p->dev, "%s:%d cb height (%d) invalid\n",
 219                                  __func__, __LINE__, height);
 220                         return -EINVAL;
 221                 }
 222                 break;
 223         case V_0280A0_ARRAY_2D_TILED_THIN1:
 224                 pitch_align = max((u32)track->nbanks,
 225                                   (u32)(((track->group_size / 8) / (bpe * track->nsamples)) * track->nbanks));
 226                 if (!IS_ALIGNED(pitch, pitch_align)) {
 227                         dev_warn(p->dev, "%s:%d cb pitch (%d) invalid\n",
 228                                 __func__, __LINE__, pitch);
 229                         return -EINVAL;
 230                 }
 231                 if (!IS_ALIGNED((height / 8), track->nbanks)) {
 232                         dev_warn(p->dev, "%s:%d cb height (%d) invalid\n",
 233                                  __func__, __LINE__, height);
 234                         return -EINVAL;
 235                 }
 236                 break;
 237         default:
 238                 dev_warn(p->dev, "%s invalid tiling %d for %d (0x%08X)\n", __func__,
 239                         G_0280A0_ARRAY_MODE(track->cb_color_info[i]), i,
 240                         track->cb_color_info[i]);
 241                 return -EINVAL;
 242         }
 243         /* check offset */
 244         tmp = height * pitch * 8 * bpe;
 245         if ((tmp + track->cb_color_bo_offset[i]) > radeon_bo_size(track->cb_color_bo[i])) {
 246                 dev_warn(p->dev, "%s offset[%d] %d too big\n", __func__, i, track->cb_color_bo_offset[i]);
 247                 return -EINVAL;
 248         }
 249         if (!IS_ALIGNED(track->cb_color_bo_offset[i], track->group_size)) {
 250                 dev_warn(p->dev, "%s offset[%d] %d not aligned\n", __func__, i, track->cb_color_bo_offset[i]);
 251                 return -EINVAL;
 252         }
 253         /* limit max tile */
 254         tmp = (height * pitch * 8) >> 6;
 255         if (tmp < slice_tile_max)
 256                 slice_tile_max = tmp;
 257         tmp = S_028060_PITCH_TILE_MAX(pitch - 1) |
 258                 S_028060_SLICE_TILE_MAX(slice_tile_max - 1);
 259         ib[track->cb_color_size_idx[i]] = tmp;
 260         return 0;
 261 }
 262
 263 static int r600_cs_track_check(struct radeon_cs_parser *p)
 264 {
 265         struct r600_cs_track *track = p->track;
 266         u32 tmp;
 267         int r, i;
 268         volatile u32 *ib = p->ib->ptr;
 269
 270         /* on legacy kernel we don't perform advanced check */
 271         if (p->rdev == NULL)
 272                 return 0;
 273         /* we don't support out buffer yet */
 274         if (track->vgt_strmout_en || track->vgt_strmout_buffer_en) {
 275                 dev_warn(p->dev, "this kernel doesn't support SMX output buffer\n");
 276                 return -EINVAL;
 277         }
 278         /* check that we have a cb for each enabled target, we don't check
 279          * shader_mask because it seems mesa isn't always setting it :(
 280          */
 281         tmp = track->cb_target_mask;
 282         for (i = 0; i < 8; i++) {
 283                 if ((tmp >> (i * 4)) & 0xF) {
 284                         /* at least one component is enabled */
 285                         if (track->cb_color_bo[i] == NULL) {
 286                                 dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
 287                                         __func__, __LINE__, track->cb_target_mask, track->cb_shader_mask, i);
 288                                 return -EINVAL;
 289                         }
 290                         /* perform rewrite of CB_COLOR[0-7]_SIZE */
 291                         r = r600_cs_track_validate_cb(p, i);
 292                         if (r)
 293                                 return r;
 294                 }
 295         }
 296         /* Check depth buffer */
 297         if (G_028800_STENCIL_ENABLE(track->db_depth_control) ||
 298                 G_028800_Z_ENABLE(track->db_depth_control)) {
 299                 u32 nviews, bpe, ntiles, pitch, pitch_align, height, size;
 300                 if (track->db_bo == NULL) {
 301                         dev_warn(p->dev, "z/stencil with no depth buffer\n");
 302                         return -EINVAL;
 303                 }
 304                 if (G_028010_TILE_SURFACE_ENABLE(track->db_depth_info)) {
 305                         dev_warn(p->dev, "this kernel doesn't support z/stencil htile\n");
 306                         return -EINVAL;
 307                 }
 308                 switch (G_028010_FORMAT(track->db_depth_info)) {
 309                 case V_028010_DEPTH_16:
 310                         bpe = 2;
 311                         break;
 312                 case V_028010_DEPTH_X8_24:
 313                 case V_028010_DEPTH_8_24:
 314                 case V_028010_DEPTH_X8_24_FLOAT:
 315                 case V_028010_DEPTH_8_24_FLOAT:
 316                 case V_028010_DEPTH_32_FLOAT:
 317                         bpe = 4;
 318                         break;
 319                 case V_028010_DEPTH_X24_8_32_FLOAT:
 320                         bpe = 8;
 321                         break;
 322                 default:
 323                         dev_warn(p->dev, "z/stencil with invalid format %d\n", G_028010_FORMAT(track->db_depth_info));
 324                         return -EINVAL;
 325                 }
 326                 if ((track->db_depth_size & 0xFFFFFC00) == 0xFFFFFC00) {
 327                         if (!track->db_depth_size_idx) {
 328                                 dev_warn(p->dev, "z/stencil buffer size not set\n");
 329                                 return -EINVAL;
 330                         }
 331                         tmp = radeon_bo_size(track->db_bo) - track->db_offset;
 332                         tmp = (tmp / bpe) >> 6;
 333                         if (!tmp) {
 334                                 dev_warn(p->dev, "z/stencil buffer too small (0x%08X %d %d %ld)\n",
 335                                                 track->db_depth_size, bpe, track->db_offset,
 336                                                 radeon_bo_size(track->db_bo));
 337                                 return -EINVAL;
 338                         }
 339                         ib[track->db_depth_size_idx] = S_028000_SLICE_TILE_MAX(tmp - 1) | (track->db_depth_size & 0x3FF);
 340                 } else {
 341                         size = radeon_bo_size(track->db_bo);
 342                         pitch = G_028000_PITCH_TILE_MAX(track->db_depth_size) + 1;
 343                         height = size / (pitch * 8 * bpe);
 344                         height &= ~0x7;
 345                         if (!height)
 346                                 height = 8;
 347
 348                         switch (G_028010_ARRAY_MODE(track->db_depth_info)) {
 349                         case V_028010_ARRAY_1D_TILED_THIN1:
 350                                 pitch_align = (max((u32)8, (u32)(track->group_size / (8 * bpe))) / 8);
 351                                 if (!IS_ALIGNED(pitch, pitch_align)) {
 352                                         dev_warn(p->dev, "%s:%d db pitch (%d) invalid\n",
 353                                                  __func__, __LINE__, pitch);
 354                                         return -EINVAL;
 355                                 }
 356                                 if (!IS_ALIGNED(height, 8)) {
 357                                         dev_warn(p->dev, "%s:%d db height (%d) invalid\n",
 358                                                  __func__, __LINE__, height);
 359                                         return -EINVAL;
 360                                 }
 361                                 break;
 362                         case V_028010_ARRAY_2D_TILED_THIN1:
 363                                 pitch_align = max((u32)track->nbanks,
 364                                                   (u32)(((track->group_size / 8) / bpe) * track->nbanks));
 365                                 if (!IS_ALIGNED(pitch, pitch_align)) {
 366                                         dev_warn(p->dev, "%s:%d db pitch (%d) invalid\n",
 367                                                  __func__, __LINE__, pitch);
 368                                         return -EINVAL;
 369                                 }
 370                                 if ((height / 8) & (track->nbanks - 1)) {
 371                                         dev_warn(p->dev, "%s:%d db height (%d) invalid\n",
 372                                                  __func__, __LINE__, height);
 373                                         return -EINVAL;
 374                                 }
 375                                 break;
 376                         default:
 377                                 dev_warn(p->dev, "%s invalid tiling %d (0x%08X)\n", __func__,
 378                                          G_028010_ARRAY_MODE(track->db_depth_info),
 379                                          track->db_depth_info);
 380                                 return -EINVAL;
 381                         }
 382                         if (!IS_ALIGNED(track->db_offset, track->group_size)) {
 383                                 dev_warn(p->dev, "%s offset[%d] %d not aligned\n", __func__, i, track->db_offset);
 384                                 return -EINVAL;
 385                         }
 386                         ntiles = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
 387                         nviews = G_028004_SLICE_MAX(track->db_depth_view) + 1;
 388                         tmp = ntiles * bpe * 64 * nviews;
 389                         if ((tmp + track->db_offset) > radeon_bo_size(track->db_bo)) {
 390                                 dev_warn(p->dev, "z/stencil buffer too small (0x%08X %d %d %d -> %d have %ld)\n",
 391                                                 track->db_depth_size, ntiles, nviews, bpe, tmp + track->db_offset,
 392                                                 radeon_bo_size(track->db_bo));
 393                                 return -EINVAL;
 394                         }
 395                 }
 396         }
 397         return 0;
 398 }
 399
 400 /**
 401  * r600_cs_packet_parse() - parse cp packet and point ib index to next packet
 402  * @parser:     parser structure holding parsing context.
 403  * @pkt:        where to store packet informations
 404  *
 405  * Assume that chunk_ib_index is properly set. Will return -EINVAL
 406  * if packet is bigger than remaining ib size. or if packets is unknown.
 407  **/
 408 int r600_cs_packet_parse(struct radeon_cs_parser *p,
 409                         struct radeon_cs_packet *pkt,
 410                         unsigned idx)
 411 {
 412         struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
 413         uint32_t header;
 414
 415         if (idx >= ib_chunk->length_dw) {
 416                 DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
 417                           idx, ib_chunk->length_dw);
 418                 return -EINVAL;
 419         }
 420         header = radeon_get_ib_value(p, idx);
 421         pkt->idx = idx;
 422         pkt->type = CP_PACKET_GET_TYPE(header);
 423         pkt->count = CP_PACKET_GET_COUNT(header);
 424         pkt->one_reg_wr = 0;
 425         switch (pkt->type) {
 426         case PACKET_TYPE0:
 427                 pkt->reg = CP_PACKET0_GET_REG(header);
 428                 break;
 429         case PACKET_TYPE3:
 430                 pkt->opcode = CP_PACKET3_GET_OPCODE(header);
 431                 break;
 432         case PACKET_TYPE2:
 433                 pkt->count = -1;
 434                 break;
 435         default:
 436                 DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
 437                 return -EINVAL;
 438         }
 439         if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
 440                 DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
 441                           pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
 442                 return -EINVAL;
 443         }
 444         return 0;
 445 }
 446
 447 /**
 448  * r600_cs_packet_next_reloc_mm() - parse next packet which should be reloc packet3
 449  * @parser:             parser structure holding parsing context.
 450  * @data:               pointer to relocation data
 451  * @offset_start:       starting offset
 452  * @offset_mask:        offset mask (to align start offset on)
 453  * @reloc:              reloc informations
 454  *
 455  * Check next packet is relocation packet3, do bo validation and compute
 456  * GPU offset using the provided start.
 457  **/
 458 static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p,
 459                                         struct radeon_cs_reloc **cs_reloc)
 460 {
 461         struct radeon_cs_chunk *relocs_chunk;
 462         struct radeon_cs_packet p3reloc;
 463         unsigned idx;
 464         int r;
 465
 466         if (p->chunk_relocs_idx == -1) {
 467                 DRM_ERROR("No relocation chunk !\n");
 468                 return -EINVAL;
 469         }
 470         *cs_reloc = NULL;
 471         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
 472         r = r600_cs_packet_parse(p, &p3reloc, p->idx);
 473         if (r) {
 474                 return r;
 475         }
 476         p->idx += p3reloc.count + 2;
 477         if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
 478                 DRM_ERROR("No packet3 for relocation for packet at %d.\n",
 479                           p3reloc.idx);
 480                 return -EINVAL;
 481         }
 482         idx = radeon_get_ib_value(p, p3reloc.idx + 1);
 483         if (idx >= relocs_chunk->length_dw) {
 484                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 485                           idx, relocs_chunk->length_dw);
 486                 return -EINVAL;
 487         }
 488         /* FIXME: we assume reloc size is 4 dwords */
 489         *cs_reloc = p->relocs_ptr[(idx / 4)];
 490         return 0;
 491 }
 492
 493 /**
 494  * r600_cs_packet_next_reloc_nomm() - parse next packet which should be reloc packet3
 495  * @parser:             parser structure holding parsing context.
 496  * @data:               pointer to relocation data
 497  * @offset_start:       starting offset
 498  * @offset_mask:        offset mask (to align start offset on)
 499  * @reloc:              reloc informations
 500  *
 501  * Check next packet is relocation packet3, do bo validation and compute
 502  * GPU offset using the provided start.
 503  **/
 504 static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p,
 505                                         struct radeon_cs_reloc **cs_reloc)
 506 {
 507         struct radeon_cs_chunk *relocs_chunk;
 508         struct radeon_cs_packet p3reloc;
 509         unsigned idx;
 510         int r;
 511
 512         if (p->chunk_relocs_idx == -1) {
 513                 DRM_ERROR("No relocation chunk !\n");
 514                 return -EINVAL;
 515         }
 516         *cs_reloc = NULL;
 517         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
 518         r = r600_cs_packet_parse(p, &p3reloc, p->idx);
 519         if (r) {
 520                 return r;
 521         }
 522         p->idx += p3reloc.count + 2;
 523         if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
 524                 DRM_ERROR("No packet3 for relocation for packet at %d.\n",
 525                           p3reloc.idx);
 526                 return -EINVAL;
 527         }
 528         idx = radeon_get_ib_value(p, p3reloc.idx + 1);
 529         if (idx >= relocs_chunk->length_dw) {
 530                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
 531                           idx, relocs_chunk->length_dw);
 532                 return -EINVAL;
 533         }
 534         *cs_reloc = p->relocs;
 535         (*cs_reloc)->lobj.gpu_offset = (u64)relocs_chunk->kdata[idx + 3] << 32;
 536         (*cs_reloc)->lobj.gpu_offset |= relocs_chunk->kdata[idx + 0];
 537         return 0;
 538 }
 539
 540 /**
 541  * r600_cs_packet_next_is_pkt3_nop() - test if next packet is packet3 nop for reloc
 542  * @parser:             parser structure holding parsing context.
 543  *
 544  * Check next packet is relocation packet3, do bo validation and compute
 545  * GPU offset using the provided start.
 546  **/
 547 static inline int r600_cs_packet_next_is_pkt3_nop(struct radeon_cs_parser *p)
 548 {
 549         struct radeon_cs_packet p3reloc;
 550         int r;
 551
 552         r = r600_cs_packet_parse(p, &p3reloc, p->idx);
 553         if (r) {
 554                 return 0;
 555         }
 556         if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
 557                 return 0;
 558         }
 559         return 1;
 560 }
 561
 562 /**
 563  * r600_cs_packet_next_vline() - parse userspace VLINE packet
 564  * @parser:             parser structure holding parsing context.
 565  *
 566  * Userspace sends a special sequence for VLINE waits.
 567  * PACKET0 - VLINE_START_END + value
 568  * PACKET3 - WAIT_REG_MEM poll vline status reg
 569  * RELOC (P3) - crtc_id in reloc.
 570  *
 571  * This function parses this and relocates the VLINE START END
 572  * and WAIT_REG_MEM packets to the correct crtc.
 573  * It also detects a switched off crtc and nulls out the
 574  * wait in that case.
 575  */
 576 static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
 577 {
 578         struct drm_mode_object *obj;
 579         struct drm_crtc *crtc;
 580         struct radeon_crtc *radeon_crtc;
 581         struct radeon_cs_packet p3reloc, wait_reg_mem;
 582         int crtc_id;
 583         int r;
 584         uint32_t header, h_idx, reg, wait_reg_mem_info;
 585         volatile uint32_t *ib;
 586
 587         ib = p->ib->ptr;
 588
 589         /* parse the WAIT_REG_MEM */
 590         r = r600_cs_packet_parse(p, &wait_reg_mem, p->idx);
 591         if (r)
 592                 return r;
 593
 594         /* check its a WAIT_REG_MEM */
 595         if (wait_reg_mem.type != PACKET_TYPE3 ||
 596             wait_reg_mem.opcode != PACKET3_WAIT_REG_MEM) {
 597                 DRM_ERROR("vline wait missing WAIT_REG_MEM segment\n");
 598                 r = -EINVAL;
 599                 return r;
 600         }
 601
 602         wait_reg_mem_info = radeon_get_ib_value(p, wait_reg_mem.idx + 1);
 603         /* bit 4 is reg (0) or mem (1) */
 604         if (wait_reg_mem_info & 0x10) {
 605                 DRM_ERROR("vline WAIT_REG_MEM waiting on MEM rather than REG\n");
 606                 r = -EINVAL;
 607                 return r;
 608         }
 609         /* waiting for value to be equal */
 610         if ((wait_reg_mem_info & 0x7) != 0x3) {
 611                 DRM_ERROR("vline WAIT_REG_MEM function not equal\n");
 612                 r = -EINVAL;
 613                 return r;
 614         }
 615         if ((radeon_get_ib_value(p, wait_reg_mem.idx + 2) << 2) != AVIVO_D1MODE_VLINE_STATUS) {
 616                 DRM_ERROR("vline WAIT_REG_MEM bad reg\n");
 617                 r = -EINVAL;
 618                 return r;
 619         }
 620
 621         if (radeon_get_ib_value(p, wait_reg_mem.idx + 5) != AVIVO_D1MODE_VLINE_STAT) {
 622                 DRM_ERROR("vline WAIT_REG_MEM bad bit mask\n");
 623                 r = -EINVAL;
 624                 return r;
 625         }
 626
 627         /* jump over the NOP */
 628         r = r600_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
 629         if (r)
 630                 return r;
 631
 632         h_idx = p->idx - 2;
 633         p->idx += wait_reg_mem.count + 2;
 634         p->idx += p3reloc.count + 2;
 635
 636         header = radeon_get_ib_value(p, h_idx);
 637         crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
 638         reg = CP_PACKET0_GET_REG(header);
 639
 640         obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
 641         if (!obj) {
 642                 DRM_ERROR("cannot find crtc %d\n", crtc_id);
 643                 r = -EINVAL;
 644                 goto out;
 645         }
 646         crtc = obj_to_crtc(obj);
 647         radeon_crtc = to_radeon_crtc(crtc);
 648         crtc_id = radeon_crtc->crtc_id;
 649
 650         if (!crtc->enabled) {
 651                 /* if the CRTC isn't enabled - we need to nop out the WAIT_REG_MEM */
 652                 ib[h_idx + 2] = PACKET2(0);
 653                 ib[h_idx + 3] = PACKET2(0);
 654                 ib[h_idx + 4] = PACKET2(0);
 655                 ib[h_idx + 5] = PACKET2(0);
 656                 ib[h_idx + 6] = PACKET2(0);
 657                 ib[h_idx + 7] = PACKET2(0);
 658                 ib[h_idx + 8] = PACKET2(0);
 659         } else if (crtc_id == 1) {
 660                 switch (reg) {
 661                 case AVIVO_D1MODE_VLINE_START_END:
 662                         header &= ~R600_CP_PACKET0_REG_MASK;
 663                         header |= AVIVO_D2MODE_VLINE_START_END >> 2;
 664                         break;
 665                 default:
 666                         DRM_ERROR("unknown crtc reloc\n");
 667                         r = -EINVAL;
 668                         goto out;
 669                 }
 670                 ib[h_idx] = header;
 671                 ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2;
 672         }
 673 out:
 674         return r;
 675 }
 676
 677 static int r600_packet0_check(struct radeon_cs_parser *p,
 678                                 struct radeon_cs_packet *pkt,
 679                                 unsigned idx, unsigned reg)
 680 {
 681         int r;
 682
 683         switch (reg) {
 684         case AVIVO_D1MODE_VLINE_START_END:
 685                 r = r600_cs_packet_parse_vline(p);
 686                 if (r) {
 687                         DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
 688                                         idx, reg);
 689                         return r;
 690                 }
 691                 break;
 692         default:
 693                 printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
 694                        reg, idx);
 695                 return -EINVAL;
 696         }
 697         return 0;
 698 }
 699
 700 static int r600_cs_parse_packet0(struct radeon_cs_parser *p,
 701                                 struct radeon_cs_packet *pkt)
 702 {
 703         unsigned reg, i;
 704         unsigned idx;
 705         int r;
 706
 707         idx = pkt->idx + 1;
 708         reg = pkt->reg;
 709         for (i = 0; i <= pkt->count; i++, idx++, reg += 4) {
 710                 r = r600_packet0_check(p, pkt, idx, reg);
 711                 if (r) {
 712                         return r;
 713                 }
 714         }
 715         return 0;
 716 }
 717
 718 /**
 719  * r600_cs_check_reg() - check if register is authorized or not
 720  * @parser: parser structure holding parsing context
 721  * @reg: register we are testing
 722  * @idx: index into the cs buffer
 723  *
 724  * This function will test against r600_reg_safe_bm and return 0
 725  * if register is safe. If register is not flag as safe this function
 726  * will test it against a list of register needind special handling.
 727  */
 728 static inline int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 729 {
 730         struct r600_cs_track *track = (struct r600_cs_track *)p->track;
 731         struct radeon_cs_reloc *reloc;
 732         u32 last_reg = ARRAY_SIZE(r600_reg_safe_bm);
 733         u32 m, i, tmp, *ib;
 734         int r;
 735
 736         i = (reg >> 7);
 737         if (i > last_reg) {
 738                 dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
 739                 return -EINVAL;
 740         }
 741         m = 1 << ((reg >> 2) & 31);
 742         if (!(r600_reg_safe_bm[i] & m))
 743                 return 0;
 744         ib = p->ib->ptr;
 745         switch (reg) {
 746         /* force following reg to 0 in an attemp to disable out buffer
 747          * which will need us to better understand how it works to perform
 748          * security check on it (Jerome)
 749          */
 750         case R_0288A8_SQ_ESGS_RING_ITEMSIZE:
 751         case R_008C44_SQ_ESGS_RING_SIZE:
 752         case R_0288B0_SQ_ESTMP_RING_ITEMSIZE:
 753         case R_008C54_SQ_ESTMP_RING_SIZE:
 754         case R_0288C0_SQ_FBUF_RING_ITEMSIZE:
 755         case R_008C74_SQ_FBUF_RING_SIZE:
 756         case R_0288B4_SQ_GSTMP_RING_ITEMSIZE:
 757         case R_008C5C_SQ_GSTMP_RING_SIZE:
 758         case R_0288AC_SQ_GSVS_RING_ITEMSIZE:
 759         case R_008C4C_SQ_GSVS_RING_SIZE:
 760         case R_0288BC_SQ_PSTMP_RING_ITEMSIZE:
 761         case R_008C6C_SQ_PSTMP_RING_SIZE:
 762         case R_0288C4_SQ_REDUC_RING_ITEMSIZE:
 763         case R_008C7C_SQ_REDUC_RING_SIZE:
 764         case R_0288B8_SQ_VSTMP_RING_ITEMSIZE:
 765         case R_008C64_SQ_VSTMP_RING_SIZE:
 766         case R_0288C8_SQ_GS_VERT_ITEMSIZE:
 767                 /* get value to populate the IB don't remove */
 768                 tmp =radeon_get_ib_value(p, idx);
 769                 ib[idx] = 0;
 770                 break;
 771         case SQ_CONFIG:
 772                 track->sq_config = radeon_get_ib_value(p, idx);
 773                 break;
 774         case R_028800_DB_DEPTH_CONTROL:
 775                 track->db_depth_control = radeon_get_ib_value(p, idx);
 776                 break;
 777         case R_028010_DB_DEPTH_INFO:
 778                 if (r600_cs_packet_next_is_pkt3_nop(p)) {
 779                         r = r600_cs_packet_next_reloc(p, &reloc);
 780                         if (r) {
 781                                 dev_warn(p->dev, "bad SET_CONTEXT_REG "
 782                                          "0x%04X\n", reg);
 783                                 return -EINVAL;
 784                         }
 785                         track->db_depth_info = radeon_get_ib_value(p, idx);
 786                         ib[idx] &= C_028010_ARRAY_MODE;
 787                         track->db_depth_info &= C_028010_ARRAY_MODE;
 788                         if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) {
 789                                 ib[idx] |= S_028010_ARRAY_MODE(V_028010_ARRAY_2D_TILED_THIN1);
 790                                 track->db_depth_info |= S_028010_ARRAY_MODE(V_028010_ARRAY_2D_TILED_THIN1);
 791                         } else {
 792                                 ib[idx] |= S_028010_ARRAY_MODE(V_028010_ARRAY_1D_TILED_THIN1);
 793                                 track->db_depth_info |= S_028010_ARRAY_MODE(V_028010_ARRAY_1D_TILED_THIN1);
 794                         }
 795                 } else
 796                         track->db_depth_info = radeon_get_ib_value(p, idx);
 797                 break;
 798         case R_028004_DB_DEPTH_VIEW:
 799                 track->db_depth_view = radeon_get_ib_value(p, idx);
 800                 break;
 801         case R_028000_DB_DEPTH_SIZE:
 802                 track->db_depth_size = radeon_get_ib_value(p, idx);
 803                 track->db_depth_size_idx = idx;
 804                 break;
 805         case R_028AB0_VGT_STRMOUT_EN:
 806                 track->vgt_strmout_en = radeon_get_ib_value(p, idx);
 807                 break;
 808         case R_028B20_VGT_STRMOUT_BUFFER_EN:
 809                 track->vgt_strmout_buffer_en = radeon_get_ib_value(p, idx);
 810                 break;
 811         case R_028238_CB_TARGET_MASK:
 812                 track->cb_target_mask = radeon_get_ib_value(p, idx);
 813                 break;
 814         case R_02823C_CB_SHADER_MASK:
 815                 track->cb_shader_mask = radeon_get_ib_value(p, idx);
 816                 break;
 817         case R_028C04_PA_SC_AA_CONFIG:
 818                 tmp = G_028C04_MSAA_NUM_SAMPLES(radeon_get_ib_value(p, idx));
 819                 track->nsamples = 1 << tmp;
 820                 break;
 821         case R_0280A0_CB_COLOR0_INFO:
 822         case R_0280A4_CB_COLOR1_INFO:
 823         case R_0280A8_CB_COLOR2_INFO:
 824         case R_0280AC_CB_COLOR3_INFO:
 825         case R_0280B0_CB_COLOR4_INFO:
 826         case R_0280B4_CB_COLOR5_INFO:
 827         case R_0280B8_CB_COLOR6_INFO:
 828         case R_0280BC_CB_COLOR7_INFO:
 829                 if (r600_cs_packet_next_is_pkt3_nop(p)) {
 830                         r = r600_cs_packet_next_reloc(p, &reloc);
 831                         if (r) {
 832                                 dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
 833                                 return -EINVAL;
 834                         }
 835                         tmp = (reg - R_0280A0_CB_COLOR0_INFO) / 4;
 836                         track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
 837                         if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) {
 838                                 ib[idx] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_2D_TILED_THIN1);
 839                                 track->cb_color_info[tmp] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_2D_TILED_THIN1);
 840                         } else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) {
 841                                 ib[idx] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_1D_TILED_THIN1);
 842                                 track->cb_color_info[tmp] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_1D_TILED_THIN1);
 843                         }
 844                 } else {
 845                         tmp = (reg - R_0280A0_CB_COLOR0_INFO) / 4;
 846                         track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
 847                 }
 848                 break;
 849         case R_028060_CB_COLOR0_SIZE:
 850         case R_028064_CB_COLOR1_SIZE:
 851         case R_028068_CB_COLOR2_SIZE:
 852         case R_02806C_CB_COLOR3_SIZE:
 853         case R_028070_CB_COLOR4_SIZE:
 854         case R_028074_CB_COLOR5_SIZE:
 855         case R_028078_CB_COLOR6_SIZE:
 856         case R_02807C_CB_COLOR7_SIZE:
 857                 tmp = (reg - R_028060_CB_COLOR0_SIZE) / 4;
 858                 track->cb_color_size[tmp] = radeon_get_ib_value(p, idx);
 859                 track->cb_color_size_idx[tmp] = idx;
 860                 break;
 861                 /* This register were added late, there is userspace
 862                  * which does provide relocation for those but set
 863                  * 0 offset. In order to avoid breaking old userspace
 864                  * we detect this and set address to point to last
 865                  * CB_COLOR0_BASE, note that if userspace doesn't set
 866                  * CB_COLOR0_BASE before this register we will report
 867                  * error. Old userspace always set CB_COLOR0_BASE
 868                  * before any of this.
 869                  */
 870         case R_0280E0_CB_COLOR0_FRAG:
 871         case R_0280E4_CB_COLOR1_FRAG:
 872         case R_0280E8_CB_COLOR2_FRAG:
 873         case R_0280EC_CB_COLOR3_FRAG:
 874         case R_0280F0_CB_COLOR4_FRAG:
 875         case R_0280F4_CB_COLOR5_FRAG:
 876         case R_0280F8_CB_COLOR6_FRAG:
 877         case R_0280FC_CB_COLOR7_FRAG:
 878                 tmp = (reg - R_0280E0_CB_COLOR0_FRAG) / 4;
 879                 if (!r600_cs_packet_next_is_pkt3_nop(p)) {
 880                         if (!track->cb_color_base_last[tmp]) {
 881                                 dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
 882                                 return -EINVAL;
 883                         }
 884                         ib[idx] = track->cb_color_base_last[tmp];
 885                         track->cb_color_frag_bo[tmp] = track->cb_color_bo[tmp];
 886                 } else {
 887                         r = r600_cs_packet_next_reloc(p, &reloc);
 888                         if (r) {
 889                                 dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
 890                                 return -EINVAL;
 891                         }
 892                         ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 893                         track->cb_color_frag_bo[tmp] = reloc->robj;
 894                 }
 895                 break;
 896         case R_0280C0_CB_COLOR0_TILE:
 897         case R_0280C4_CB_COLOR1_TILE:
 898         case R_0280C8_CB_COLOR2_TILE:
 899         case R_0280CC_CB_COLOR3_TILE:
 900         case R_0280D0_CB_COLOR4_TILE:
 901         case R_0280D4_CB_COLOR5_TILE:
 902         case R_0280D8_CB_COLOR6_TILE:
 903         case R_0280DC_CB_COLOR7_TILE:
 904                 tmp = (reg - R_0280C0_CB_COLOR0_TILE) / 4;
 905                 if (!r600_cs_packet_next_is_pkt3_nop(p)) {
 906                         if (!track->cb_color_base_last[tmp]) {
 907                                 dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
 908                                 return -EINVAL;
 909                         }
 910                         ib[idx] = track->cb_color_base_last[tmp];
 911                         track->cb_color_tile_bo[tmp] = track->cb_color_bo[tmp];
 912                 } else {
 913                         r = r600_cs_packet_next_reloc(p, &reloc);
 914                         if (r) {
 915                                 dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
 916                                 return -EINVAL;
 917                         }
 918                         ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 919                         track->cb_color_tile_bo[tmp] = reloc->robj;
 920                 }
 921                 break;
 922         case CB_COLOR0_BASE:
 923         case CB_COLOR1_BASE:
 924         case CB_COLOR2_BASE:
 925         case CB_COLOR3_BASE:
 926         case CB_COLOR4_BASE:
 927         case CB_COLOR5_BASE:
 928         case CB_COLOR6_BASE:
 929         case CB_COLOR7_BASE:
 930                 r = r600_cs_packet_next_reloc(p, &reloc);
 931                 if (r) {
 932                         dev_warn(p->dev, "bad SET_CONTEXT_REG "
 933                                         "0x%04X\n", reg);
 934                         return -EINVAL;
 935                 }
 936                 tmp = (reg - CB_COLOR0_BASE) / 4;
 937                 track->cb_color_bo_offset[tmp] = radeon_get_ib_value(p, idx) << 8;
 938                 ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 939                 track->cb_color_base_last[tmp] = ib[idx];
 940                 track->cb_color_bo[tmp] = reloc->robj;
 941                 break;
 942         case DB_DEPTH_BASE:
 943                 r = r600_cs_packet_next_reloc(p, &reloc);
 944                 if (r) {
 945                         dev_warn(p->dev, "bad SET_CONTEXT_REG "
 946                                         "0x%04X\n", reg);
 947                         return -EINVAL;
 948                 }
 949                 track->db_offset = radeon_get_ib_value(p, idx) << 8;
 950                 ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 951                 track->db_bo = reloc->robj;
 952                 break;
 953         case DB_HTILE_DATA_BASE:
 954         case SQ_PGM_START_FS:
 955         case SQ_PGM_START_ES:
 956         case SQ_PGM_START_VS:
 957         case SQ_PGM_START_GS:
 958         case SQ_PGM_START_PS:
 959         case SQ_ALU_CONST_CACHE_GS_0:
 960         case SQ_ALU_CONST_CACHE_GS_1:
 961         case SQ_ALU_CONST_CACHE_GS_2:
 962         case SQ_ALU_CONST_CACHE_GS_3:
 963         case SQ_ALU_CONST_CACHE_GS_4:
 964         case SQ_ALU_CONST_CACHE_GS_5:
 965         case SQ_ALU_CONST_CACHE_GS_6:
 966         case SQ_ALU_CONST_CACHE_GS_7:
 967         case SQ_ALU_CONST_CACHE_GS_8:
 968         case SQ_ALU_CONST_CACHE_GS_9:
 969         case SQ_ALU_CONST_CACHE_GS_10:
 970         case SQ_ALU_CONST_CACHE_GS_11:
 971         case SQ_ALU_CONST_CACHE_GS_12:
 972         case SQ_ALU_CONST_CACHE_GS_13:
 973         case SQ_ALU_CONST_CACHE_GS_14:
 974         case SQ_ALU_CONST_CACHE_GS_15:
 975         case SQ_ALU_CONST_CACHE_PS_0:
 976         case SQ_ALU_CONST_CACHE_PS_1:
 977         case SQ_ALU_CONST_CACHE_PS_2:
 978         case SQ_ALU_CONST_CACHE_PS_3:
 979         case SQ_ALU_CONST_CACHE_PS_4:
 980         case SQ_ALU_CONST_CACHE_PS_5:
 981         case SQ_ALU_CONST_CACHE_PS_6:
 982         case SQ_ALU_CONST_CACHE_PS_7:
 983         case SQ_ALU_CONST_CACHE_PS_8:
 984         case SQ_ALU_CONST_CACHE_PS_9:
 985         case SQ_ALU_CONST_CACHE_PS_10:
 986         case SQ_ALU_CONST_CACHE_PS_11:
 987         case SQ_ALU_CONST_CACHE_PS_12:
 988         case SQ_ALU_CONST_CACHE_PS_13:
 989         case SQ_ALU_CONST_CACHE_PS_14:
 990         case SQ_ALU_CONST_CACHE_PS_15:
 991         case SQ_ALU_CONST_CACHE_VS_0:
 992         case SQ_ALU_CONST_CACHE_VS_1:
 993         case SQ_ALU_CONST_CACHE_VS_2:
 994         case SQ_ALU_CONST_CACHE_VS_3:
 995         case SQ_ALU_CONST_CACHE_VS_4:
 996         case SQ_ALU_CONST_CACHE_VS_5:
 997         case SQ_ALU_CONST_CACHE_VS_6:
 998         case SQ_ALU_CONST_CACHE_VS_7:
 999         case SQ_ALU_CONST_CACHE_VS_8:
1000         case SQ_ALU_CONST_CACHE_VS_9:
1001         case SQ_ALU_CONST_CACHE_VS_10:
1002         case SQ_ALU_CONST_CACHE_VS_11:
1003         case SQ_ALU_CONST_CACHE_VS_12:
1004         case SQ_ALU_CONST_CACHE_VS_13:
1005         case SQ_ALU_CONST_CACHE_VS_14:
1006         case SQ_ALU_CONST_CACHE_VS_15:
1007                 r = r600_cs_packet_next_reloc(p, &reloc);
1008                 if (r) {
1009                         dev_warn(p->dev, "bad SET_CONTEXT_REG "
1010                                         "0x%04X\n", reg);
1011                         return -EINVAL;
1012                 }
1013                 ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1014                 break;
1015         default:
1016                 dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1017                 return -EINVAL;
1018         }
1019         return 0;
1020 }
1021
1022 static inline unsigned minify(unsigned size, unsigned levels)
1023 {
1024         size = size >> levels;
1025         if (size < 1)
1026                 size = 1;
1027         return size;
1028 }
1029
1030 static void r600_texture_size(unsigned nfaces, unsigned blevel, unsigned nlevels,
1031                               unsigned w0, unsigned h0, unsigned d0, unsigned bpe,
1032                               unsigned pitch_align,
1033                               unsigned *l0_size, unsigned *mipmap_size)
1034 {
1035         unsigned offset, i, level, face;
1036         unsigned width, height, depth, rowstride, size;
1037
1038         w0 = minify(w0, 0);
1039         h0 = minify(h0, 0);
1040         d0 = minify(d0, 0);
1041         for(i = 0, offset = 0, level = blevel; i < nlevels; i++, level++) {
1042                 width = minify(w0, i);
1043                 height = minify(h0, i);
1044                 depth = minify(d0, i);
1045                 for(face = 0; face < nfaces; face++) {
1046                         rowstride = ALIGN((width * bpe), pitch_align);
1047                         size = height * rowstride * depth;
1048                         offset += size;
1049                         offset = (offset + 0x1f) & ~0x1f;
1050                 }
1051         }
1052         *l0_size = ALIGN((w0 * bpe), pitch_align) * h0 * d0;
1053         *mipmap_size = offset;
1054         if (!nlevels)
1055                 *mipmap_size = *l0_size;
1056         if (!blevel)
1057                 *mipmap_size -= *l0_size;
1058 }
1059
1060 /**
1061  * r600_check_texture_resource() - check if register is authorized or not
1062  * @p: parser structure holding parsing context
1063  * @idx: index into the cs buffer
1064  * @texture: texture's bo structure
1065  * @mipmap: mipmap's bo structure
1066  *
1067  * This function will check that the resource has valid field and that
1068  * the texture and mipmap bo object are big enough to cover this resource.
1069  */
1070 static inline int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
1071                                               struct radeon_bo *texture,
1072                                               struct radeon_bo *mipmap,
1073                                               u32 tiling_flags)
1074 {
1075         struct r600_cs_track *track = p->track;
1076         u32 nfaces, nlevels, blevel, w0, h0, d0, bpe = 0;
1077         u32 word0, word1, l0_size, mipmap_size, pitch, pitch_align;
1078
1079         /* on legacy kernel we don't perform advanced check */
1080         if (p->rdev == NULL)
1081                 return 0;
1082
1083         word0 = radeon_get_ib_value(p, idx + 0);
1084         if (tiling_flags & RADEON_TILING_MACRO)
1085                 word0 |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
1086         else if (tiling_flags & RADEON_TILING_MICRO)
1087                 word0 |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
1088         word1 = radeon_get_ib_value(p, idx + 1);
1089         w0 = G_038000_TEX_WIDTH(word0) + 1;
1090         h0 = G_038004_TEX_HEIGHT(word1) + 1;
1091         d0 = G_038004_TEX_DEPTH(word1);
1092         nfaces = 1;
1093         switch (G_038000_DIM(word0)) {
1094         case V_038000_SQ_TEX_DIM_1D:
1095         case V_038000_SQ_TEX_DIM_2D:
1096         case V_038000_SQ_TEX_DIM_3D:
1097                 break;
1098         case V_038000_SQ_TEX_DIM_CUBEMAP:
1099                 nfaces = 6;
1100                 break;
1101         case V_038000_SQ_TEX_DIM_1D_ARRAY:
1102         case V_038000_SQ_TEX_DIM_2D_ARRAY:
1103         case V_038000_SQ_TEX_DIM_2D_MSAA:
1104         case V_038000_SQ_TEX_DIM_2D_ARRAY_MSAA:
1105         default:
1106                 dev_warn(p->dev, "this kernel doesn't support %d texture dim\n", G_038000_DIM(word0));
1107                 return -EINVAL;
1108         }
1109         if (r600_bpe_from_format(&bpe,  G_038004_DATA_FORMAT(word1))) {
1110                 dev_warn(p->dev, "%s:%d texture invalid format %d\n",
1111                          __func__, __LINE__, G_038004_DATA_FORMAT(word1));
1112                 return -EINVAL;
1113         }
1114
1115         pitch = G_038000_PITCH(word0) + 1;
1116         switch (G_038000_TILE_MODE(word0)) {
1117         case V_038000_ARRAY_LINEAR_GENERAL:
1118                 pitch_align = 1;
1119                 /* XXX check height align */
1120                 break;
1121         case V_038000_ARRAY_LINEAR_ALIGNED:
1122                 pitch_align = max((u32)64, (u32)(track->group_size / bpe)) / 8;
1123                 if (!IS_ALIGNED(pitch, pitch_align)) {
1124                         dev_warn(p->dev, "%s:%d tex pitch (%d) invalid\n",
1125                                  __func__, __LINE__, pitch);
1126                         return -EINVAL;
1127                 }
1128                 /* XXX check height align */
1129                 break;
1130         case V_038000_ARRAY_1D_TILED_THIN1:
1131                 pitch_align = max((u32)8, (u32)(track->group_size / (8 * bpe))) / 8;
1132                 if (!IS_ALIGNED(pitch, pitch_align)) {
1133                         dev_warn(p->dev, "%s:%d tex pitch (%d) invalid\n",
1134                                  __func__, __LINE__, pitch);
1135                         return -EINVAL;
1136                 }
1137                 /* XXX check height align */
1138                 break;
1139         case V_038000_ARRAY_2D_TILED_THIN1:
1140                 pitch_align = max((u32)track->nbanks,
1141                                   (u32)(((track->group_size / 8) / bpe) * track->nbanks));
1142                 if (!IS_ALIGNED(pitch, pitch_align)) {
1143                         dev_warn(p->dev, "%s:%d tex pitch (%d) invalid\n",
1144                                 __func__, __LINE__, pitch);
1145                         return -EINVAL;
1146                 }
1147                 /* XXX check height align */
1148                 break;
1149         default:
1150                 dev_warn(p->dev, "%s invalid tiling %d (0x%08X)\n", __func__,
1151                          G_038000_TILE_MODE(word0), word0);
1152                 return -EINVAL;
1153         }
1154         /* XXX check offset align */
1155
1156         word0 = radeon_get_ib_value(p, idx + 4);
1157         word1 = radeon_get_ib_value(p, idx + 5);
1158         blevel = G_038010_BASE_LEVEL(word0);
1159         nlevels = G_038014_LAST_LEVEL(word1);
1160         r600_texture_size(nfaces, blevel, nlevels, w0, h0, d0, bpe,
1161                           (pitch_align * bpe),
1162                           &l0_size, &mipmap_size);
1163         /* using get ib will give us the offset into the texture bo */
1164         word0 = radeon_get_ib_value(p, idx + 2) << 8;
1165         if ((l0_size + word0) > radeon_bo_size(texture)) {
1166                 dev_warn(p->dev, "texture bo too small (%d %d %d %d -> %d have %ld)\n",
1167                         w0, h0, bpe, word0, l0_size, radeon_bo_size(texture));
1168                 return -EINVAL;
1169         }
1170         /* using get ib will give us the offset into the mipmap bo */
1171         word0 = radeon_get_ib_value(p, idx + 3) << 8;
1172         if ((mipmap_size + word0) > radeon_bo_size(mipmap)) {
1173                 dev_warn(p->dev, "mipmap bo too small (%d %d %d %d %d %d -> %d have %ld)\n",
1174                         w0, h0, bpe, blevel, nlevels, word0, mipmap_size, radeon_bo_size(texture));
1175                 return -EINVAL;
1176         }
1177         return 0;
1178 }
1179
1180 static int r600_packet3_check(struct radeon_cs_parser *p,
1181                                 struct radeon_cs_packet *pkt)
1182 {
1183         struct radeon_cs_reloc *reloc;
1184         struct r600_cs_track *track;
1185         volatile u32 *ib;
1186         unsigned idx;
1187         unsigned i;
1188         unsigned start_reg, end_reg, reg;
1189         int r;
1190         u32 idx_value;
1191
1192         track = (struct r600_cs_track *)p->track;
1193         ib = p->ib->ptr;
1194         idx = pkt->idx + 1;
1195         idx_value = radeon_get_ib_value(p, idx);
1196
1197         switch (pkt->opcode) {
1198         case PACKET3_START_3D_CMDBUF:
1199                 if (p->family >= CHIP_RV770 || pkt->count) {
1200                         DRM_ERROR("bad START_3D\n");
1201                         return -EINVAL;
1202                 }
1203                 break;
1204         case PACKET3_CONTEXT_CONTROL:
1205                 if (pkt->count != 1) {
1206                         DRM_ERROR("bad CONTEXT_CONTROL\n");
1207                         return -EINVAL;
1208                 }
1209                 break;
1210         case PACKET3_INDEX_TYPE:
1211         case PACKET3_NUM_INSTANCES:
1212                 if (pkt->count) {
1213                         DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES\n");
1214                         return -EINVAL;
1215                 }
1216                 break;
1217         case PACKET3_DRAW_INDEX:
1218                 if (pkt->count != 3) {
1219                         DRM_ERROR("bad DRAW_INDEX\n");
1220                         return -EINVAL;
1221                 }
1222                 r = r600_cs_packet_next_reloc(p, &reloc);
1223                 if (r) {
1224                         DRM_ERROR("bad DRAW_INDEX\n");
1225                         return -EINVAL;
1226                 }
1227                 ib[idx+0] = idx_value + (u32)(reloc->lobj.gpu_offset & 0xffffffff);
1228                 ib[idx+1] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff;
1229                 r = r600_cs_track_check(p);
1230                 if (r) {
1231                         dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1232                         return r;
1233                 }
1234                 break;
1235         case PACKET3_DRAW_INDEX_AUTO:
1236                 if (pkt->count != 1) {
1237                         DRM_ERROR("bad DRAW_INDEX_AUTO\n");
1238                         return -EINVAL;
1239                 }
1240                 r = r600_cs_track_check(p);
1241                 if (r) {
1242                         dev_warn(p->dev, "%s:%d invalid cmd stream %d\n", __func__, __LINE__, idx);
1243                         return r;
1244                 }
1245                 break;
1246         case PACKET3_DRAW_INDEX_IMMD_BE:
1247         case PACKET3_DRAW_INDEX_IMMD:
1248                 if (pkt->count < 2) {
1249                         DRM_ERROR("bad DRAW_INDEX_IMMD\n");
1250                         return -EINVAL;
1251                 }
1252                 r = r600_cs_track_check(p);
1253                 if (r) {
1254                         dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1255                         return r;
1256                 }
1257                 break;
1258         case PACKET3_WAIT_REG_MEM:
1259                 if (pkt->count != 5) {
1260                         DRM_ERROR("bad WAIT_REG_MEM\n");
1261                         return -EINVAL;
1262                 }
1263                 /* bit 4 is reg (0) or mem (1) */
1264                 if (idx_value & 0x10) {
1265                         r = r600_cs_packet_next_reloc(p, &reloc);
1266                         if (r) {
1267                                 DRM_ERROR("bad WAIT_REG_MEM\n");
1268                                 return -EINVAL;
1269                         }
1270                         ib[idx+1] += (u32)(reloc->lobj.gpu_offset & 0xffffffff);
1271                         ib[idx+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff;
1272                 }
1273                 break;
1274         case PACKET3_SURFACE_SYNC:
1275                 if (pkt->count != 3) {
1276                         DRM_ERROR("bad SURFACE_SYNC\n");
1277                         return -EINVAL;
1278                 }
1279                 /* 0xffffffff/0x0 is flush all cache flag */
1280                 if (radeon_get_ib_value(p, idx + 1) != 0xffffffff ||
1281                     radeon_get_ib_value(p, idx + 2) != 0) {
1282                         r = r600_cs_packet_next_reloc(p, &reloc);
1283                         if (r) {
1284                                 DRM_ERROR("bad SURFACE_SYNC\n");
1285                                 return -EINVAL;
1286                         }
1287                         ib[idx+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1288                 }
1289                 break;
1290         case PACKET3_EVENT_WRITE:
1291                 if (pkt->count != 2 && pkt->count != 0) {
1292                         DRM_ERROR("bad EVENT_WRITE\n");
1293                         return -EINVAL;
1294                 }
1295                 if (pkt->count) {
1296                         r = r600_cs_packet_next_reloc(p, &reloc);
1297                         if (r) {
1298                                 DRM_ERROR("bad EVENT_WRITE\n");
1299                                 return -EINVAL;
1300                         }
1301                         ib[idx+1] += (u32)(reloc->lobj.gpu_offset & 0xffffffff);
1302                         ib[idx+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff;
1303                 }
1304                 break;
1305         case PACKET3_EVENT_WRITE_EOP:
1306                 if (pkt->count != 4) {
1307                         DRM_ERROR("bad EVENT_WRITE_EOP\n");
1308                         return -EINVAL;
1309                 }
1310                 r = r600_cs_packet_next_reloc(p, &reloc);
1311                 if (r) {
1312                         DRM_ERROR("bad EVENT_WRITE\n");
1313                         return -EINVAL;
1314                 }
1315                 ib[idx+1] += (u32)(reloc->lobj.gpu_offset & 0xffffffff);
1316                 ib[idx+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff;
1317                 break;
1318         case PACKET3_SET_CONFIG_REG:
1319                 start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_OFFSET;
1320                 end_reg = 4 * pkt->count + start_reg - 4;
1321                 if ((start_reg < PACKET3_SET_CONFIG_REG_OFFSET) ||
1322                     (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
1323                     (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
1324                         DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
1325                         return -EINVAL;
1326                 }
1327                 for (i = 0; i < pkt->count; i++) {
1328                         reg = start_reg + (4 * i);
1329                         r = r600_cs_check_reg(p, reg, idx+1+i);
1330                         if (r)
1331                                 return r;
1332                 }
1333                 break;
1334         case PACKET3_SET_CONTEXT_REG:
1335                 start_reg = (idx_value << 2) + PACKET3_SET_CONTEXT_REG_OFFSET;
1336                 end_reg = 4 * pkt->count + start_reg - 4;
1337                 if ((start_reg < PACKET3_SET_CONTEXT_REG_OFFSET) ||
1338                     (start_reg >= PACKET3_SET_CONTEXT_REG_END) ||
1339                     (end_reg >= PACKET3_SET_CONTEXT_REG_END)) {
1340                         DRM_ERROR("bad PACKET3_SET_CONTEXT_REG\n");
1341                         return -EINVAL;
1342                 }
1343                 for (i = 0; i < pkt->count; i++) {
1344                         reg = start_reg + (4 * i);
1345                         r = r600_cs_check_reg(p, reg, idx+1+i);
1346                         if (r)
1347                                 return r;
1348                 }
1349                 break;
1350         case PACKET3_SET_RESOURCE:
1351                 if (pkt->count % 7) {
1352                         DRM_ERROR("bad SET_RESOURCE\n");
1353                         return -EINVAL;
1354                 }
1355                 start_reg = (idx_value << 2) + PACKET3_SET_RESOURCE_OFFSET;
1356                 end_reg = 4 * pkt->count + start_reg - 4;
1357                 if ((start_reg < PACKET3_SET_RESOURCE_OFFSET) ||
1358                     (start_reg >= PACKET3_SET_RESOURCE_END) ||
1359                     (end_reg >= PACKET3_SET_RESOURCE_END)) {
1360                         DRM_ERROR("bad SET_RESOURCE\n");
1361                         return -EINVAL;
1362                 }
1363                 for (i = 0; i < (pkt->count / 7); i++) {
1364                         struct radeon_bo *texture, *mipmap;
1365                         u32 size, offset, base_offset, mip_offset;
1366
1367                         switch (G__SQ_VTX_CONSTANT_TYPE(radeon_get_ib_value(p, idx+(i*7)+6+1))) {
1368                         case SQ_TEX_VTX_VALID_TEXTURE:
1369                                 /* tex base */
1370                                 r = r600_cs_packet_next_reloc(p, &reloc);
1371                                 if (r) {
1372                                         DRM_ERROR("bad SET_RESOURCE\n");
1373                                         return -EINVAL;
1374                                 }
1375                                 base_offset = (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1376                                 if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
1377                                         ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
1378                                 else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
1379                                         ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
1380                                 texture = reloc->robj;
1381                                 /* tex mip base */
1382                                 r = r600_cs_packet_next_reloc(p, &reloc);
1383                                 if (r) {
1384                                         DRM_ERROR("bad SET_RESOURCE\n");
1385                                         return -EINVAL;
1386                                 }
1387                                 mip_offset = (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1388                                 mipmap = reloc->robj;
1389                                 r = r600_check_texture_resource(p,  idx+(i*7)+1,
1390                                                                 texture, mipmap, reloc->lobj.tiling_flags);
1391                                 if (r)
1392                                         return r;
1393                                 ib[idx+1+(i*7)+2] += base_offset;
1394                                 ib[idx+1+(i*7)+3] += mip_offset;
1395                                 break;
1396                         case SQ_TEX_VTX_VALID_BUFFER:
1397                                 /* vtx base */
1398                                 r = r600_cs_packet_next_reloc(p, &reloc);
1399                                 if (r) {
1400                                         DRM_ERROR("bad SET_RESOURCE\n");
1401                                         return -EINVAL;
1402                                 }
1403                                 offset = radeon_get_ib_value(p, idx+1+(i*7)+0);
1404                                 size = radeon_get_ib_value(p, idx+1+(i*7)+1) + 1;
1405                                 if (p->rdev && (size + offset) > radeon_bo_size(reloc->robj)) {
1406                                         /* force size to size of the buffer */
1407                                         dev_warn(p->dev, "vbo resource seems too big (%d) for the bo (%ld)\n",
1408                                                  size + offset, radeon_bo_size(reloc->robj));
1409                                         ib[idx+1+(i*7)+1] = radeon_bo_size(reloc->robj);
1410                                 }
1411                                 ib[idx+1+(i*7)+0] += (u32)((reloc->lobj.gpu_offset) & 0xffffffff);
1412                                 ib[idx+1+(i*7)+2] += upper_32_bits(reloc->lobj.gpu_offset) & 0xff;
1413                                 break;
1414                         case SQ_TEX_VTX_INVALID_TEXTURE:
1415                         case SQ_TEX_VTX_INVALID_BUFFER:
1416                         default:
1417                                 DRM_ERROR("bad SET_RESOURCE\n");
1418                                 return -EINVAL;
1419                         }
1420                 }
1421                 break;
1422         case PACKET3_SET_ALU_CONST:
1423                 if (track->sq_config & DX9_CONSTS) {
1424                         start_reg = (idx_value << 2) + PACKET3_SET_ALU_CONST_OFFSET;
1425                         end_reg = 4 * pkt->count + start_reg - 4;
1426                         if ((start_reg < PACKET3_SET_ALU_CONST_OFFSET) ||
1427                             (start_reg >= PACKET3_SET_ALU_CONST_END) ||
1428                             (end_reg >= PACKET3_SET_ALU_CONST_END)) {
1429                                 DRM_ERROR("bad SET_ALU_CONST\n");
1430                                 return -EINVAL;
1431                         }
1432                 }
1433                 break;
1434         case PACKET3_SET_BOOL_CONST:
1435                 start_reg = (idx_value << 2) + PACKET3_SET_BOOL_CONST_OFFSET;
1436                 end_reg = 4 * pkt->count + start_reg - 4;
1437                 if ((start_reg < PACKET3_SET_BOOL_CONST_OFFSET) ||
1438                     (start_reg >= PACKET3_SET_BOOL_CONST_END) ||
1439                     (end_reg >= PACKET3_SET_BOOL_CONST_END)) {
1440                         DRM_ERROR("bad SET_BOOL_CONST\n");
1441                         return -EINVAL;
1442                 }
1443                 break;
1444         case PACKET3_SET_LOOP_CONST:
1445                 start_reg = (idx_value << 2) + PACKET3_SET_LOOP_CONST_OFFSET;
1446                 end_reg = 4 * pkt->count + start_reg - 4;
1447                 if ((start_reg < PACKET3_SET_LOOP_CONST_OFFSET) ||
1448                     (start_reg >= PACKET3_SET_LOOP_CONST_END) ||
1449                     (end_reg >= PACKET3_SET_LOOP_CONST_END)) {
1450                         DRM_ERROR("bad SET_LOOP_CONST\n");
1451                         return -EINVAL;
1452                 }
1453                 break;
1454         case PACKET3_SET_CTL_CONST:
1455                 start_reg = (idx_value << 2) + PACKET3_SET_CTL_CONST_OFFSET;
1456                 end_reg = 4 * pkt->count + start_reg - 4;
1457                 if ((start_reg < PACKET3_SET_CTL_CONST_OFFSET) ||
1458                     (start_reg >= PACKET3_SET_CTL_CONST_END) ||
1459                     (end_reg >= PACKET3_SET_CTL_CONST_END)) {
1460                         DRM_ERROR("bad SET_CTL_CONST\n");
1461                         return -EINVAL;
1462                 }
1463                 break;
1464         case PACKET3_SET_SAMPLER:
1465                 if (pkt->count % 3) {
1466                         DRM_ERROR("bad SET_SAMPLER\n");
1467                         return -EINVAL;
1468                 }
1469                 start_reg = (idx_value << 2) + PACKET3_SET_SAMPLER_OFFSET;
1470                 end_reg = 4 * pkt->count + start_reg - 4;
1471                 if ((start_reg < PACKET3_SET_SAMPLER_OFFSET) ||
1472                     (start_reg >= PACKET3_SET_SAMPLER_END) ||
1473                     (end_reg >= PACKET3_SET_SAMPLER_END)) {
1474                         DRM_ERROR("bad SET_SAMPLER\n");
1475                         return -EINVAL;
1476                 }
1477                 break;
1478         case PACKET3_SURFACE_BASE_UPDATE:
1479                 if (p->family >= CHIP_RV770 || p->family == CHIP_R600) {
1480                         DRM_ERROR("bad SURFACE_BASE_UPDATE\n");
1481                         return -EINVAL;
1482                 }
1483                 if (pkt->count) {
1484                         DRM_ERROR("bad SURFACE_BASE_UPDATE\n");
1485                         return -EINVAL;
1486                 }
1487                 break;
1488         case PACKET3_NOP:
1489                 break;
1490         default:
1491                 DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
1492                 return -EINVAL;
1493         }
1494         return 0;
1495 }
1496
1497 int r600_cs_parse(struct radeon_cs_parser *p)
1498 {
1499         struct radeon_cs_packet pkt;
1500         struct r600_cs_track *track;
1501         int r;
1502
1503         if (p->track == NULL) {
1504                 /* initialize tracker, we are in kms */
1505                 track = kzalloc(sizeof(*track), GFP_KERNEL);
1506                 if (track == NULL)
1507                         return -ENOMEM;
1508                 r600_cs_track_init(track);
1509                 if (p->rdev->family < CHIP_RV770) {
1510                         track->npipes = p->rdev->config.r600.tiling_npipes;
1511                         track->nbanks = p->rdev->config.r600.tiling_nbanks;
1512                         track->group_size = p->rdev->config.r600.tiling_group_size;
1513                 } else if (p->rdev->family <= CHIP_RV740) {
1514                         track->npipes = p->rdev->config.rv770.tiling_npipes;
1515                         track->nbanks = p->rdev->config.rv770.tiling_nbanks;
1516                         track->group_size = p->rdev->config.rv770.tiling_group_size;
1517                 }
1518                 p->track = track;
1519         }
1520         do {
1521                 r = r600_cs_packet_parse(p, &pkt, p->idx);
1522                 if (r) {
1523                         kfree(p->track);
1524                         p->track = NULL;
1525                         return r;
1526                 }
1527                 p->idx += pkt.count + 2;
1528                 switch (pkt.type) {
1529                 case PACKET_TYPE0:
1530                         r = r600_cs_parse_packet0(p, &pkt);
1531                         break;
1532                 case PACKET_TYPE2:
1533                         break;
1534                 case PACKET_TYPE3:
1535                         r = r600_packet3_check(p, &pkt);
1536                         break;
1537                 default:
1538                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
1539                         kfree(p->track);
1540                         p->track = NULL;
1541                         return -EINVAL;
1542                 }
1543                 if (r) {
1544                         kfree(p->track);
1545                         p->track = NULL;
1546                         return r;
1547                 }
1548         } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
1549 #if 0
1550         for (r = 0; r < p->ib->length_dw; r++) {
1551                 printk(KERN_INFO "%05d  0x%08X\n", r, p->ib->ptr[r]);
1552                 mdelay(1);
1553         }
1554 #endif
1555         kfree(p->track);
1556         p->track = NULL;
1557         return 0;
1558 }
1559
1560 static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p)
1561 {
1562         if (p->chunk_relocs_idx == -1) {
1563                 return 0;
1564         }
1565         p->relocs = kzalloc(sizeof(struct radeon_cs_reloc), GFP_KERNEL);
1566         if (p->relocs == NULL) {
1567                 return -ENOMEM;
1568         }
1569         return 0;
1570 }
1571
1572 /**
1573  * cs_parser_fini() - clean parser states
1574  * @parser:     parser structure holding parsing context.
1575  * @error:      error number
1576  *
1577  * If error is set than unvalidate buffer, otherwise just free memory
1578  * used by parsing context.
1579  **/
1580 static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error)
1581 {
1582         unsigned i;
1583
1584         kfree(parser->relocs);
1585         for (i = 0; i < parser->nchunks; i++) {
1586                 kfree(parser->chunks[i].kdata);
1587                 kfree(parser->chunks[i].kpage[0]);
1588                 kfree(parser->chunks[i].kpage[1]);
1589         }
1590         kfree(parser->chunks);
1591         kfree(parser->chunks_array);
1592 }
1593
1594 int r600_cs_legacy(struct drm_device *dev, void *data, struct drm_file *filp,
1595                         unsigned family, u32 *ib, int *l)
1596 {
1597         struct radeon_cs_parser parser;
1598         struct radeon_cs_chunk *ib_chunk;
1599         struct radeon_ib fake_ib;
1600         struct r600_cs_track *track;
1601         int r;
1602
1603         /* initialize tracker */
1604         track = kzalloc(sizeof(*track), GFP_KERNEL);
1605         if (track == NULL)
1606                 return -ENOMEM;
1607         r600_cs_track_init(track);
1608         r600_cs_legacy_get_tiling_conf(dev, &track->npipes, &track->nbanks, &track->group_size);
1609         /* initialize parser */
1610         memset(&parser, 0, sizeof(struct radeon_cs_parser));
1611         parser.filp = filp;
1612         parser.dev = &dev->pdev->dev;
1613         parser.rdev = NULL;
1614         parser.family = family;
1615         parser.ib = &fake_ib;
1616         parser.track = track;
1617         fake_ib.ptr = ib;
1618         r = radeon_cs_parser_init(&parser, data);
1619         if (r) {
1620                 DRM_ERROR("Failed to initialize parser !\n");
1621                 r600_cs_parser_fini(&parser, r);
1622                 return r;
1623         }
1624         r = r600_cs_parser_relocs_legacy(&parser);
1625         if (r) {
1626                 DRM_ERROR("Failed to parse relocation !\n");
1627                 r600_cs_parser_fini(&parser, r);
1628                 return r;
1629         }
1630         /* Copy the packet into the IB, the parser will read from the
1631          * input memory (cached) and write to the IB (which can be
1632          * uncached). */
1633         ib_chunk = &parser.chunks[parser.chunk_ib_idx];
1634         parser.ib->length_dw = ib_chunk->length_dw;
1635         *l = parser.ib->length_dw;
1636         r = r600_cs_parse(&parser);
1637         if (r) {
1638                 DRM_ERROR("Invalid command stream !\n");
1639                 r600_cs_parser_fini(&parser, r);
1640                 return r;
1641         }
1642         r = radeon_cs_finish_pages(&parser);
1643         if (r) {
1644                 DRM_ERROR("Invalid command stream !\n");
1645                 r600_cs_parser_fini(&parser, r);
1646                 return r;
1647         }
1648         r600_cs_parser_fini(&parser, r);
1649         return r;
1650 }
1651
1652 void r600_cs_legacy_init(void)
1653 {
1654         r600_cs_packet_next_reloc = &r600_cs_packet_next_reloc_nomm;
1655 }