drivers/char/drm/r128_state.c

   1 /* r128_state.c -- State support for r128 -*- linux-c -*-
   2  * Created: Thu Jan 27 02:53:43 2000 by gareth@valinux.com
   3  */
   4 /*
   5  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25  * DEALINGS IN THE SOFTWARE.
  26  *
  27  * Authors:
  28  *    Gareth Hughes <gareth@valinux.com>
  29  */
  30
  31 #include "drmP.h"
  32 #include "drm.h"
  33 #include "r128_drm.h"
  34 #include "r128_drv.h"
  35
  36 /* ================================================================
  37  * CCE hardware state programming functions
  38  */
  39
  40 static void r128_emit_clip_rects(drm_r128_private_t * dev_priv,
  41                                  struct drm_clip_rect * boxes, int count)
  42 {
  43         u32 aux_sc_cntl = 0x00000000;
  44         RING_LOCALS;
  45         DRM_DEBUG("\n");
  46
  47         BEGIN_RING((count < 3 ? count : 3) * 5 + 2);
  48
  49         if (count >= 1) {
  50                 OUT_RING(CCE_PACKET0(R128_AUX1_SC_LEFT, 3));
  51                 OUT_RING(boxes[0].x1);
  52                 OUT_RING(boxes[0].x2 - 1);
  53                 OUT_RING(boxes[0].y1);
  54                 OUT_RING(boxes[0].y2 - 1);
  55
  56                 aux_sc_cntl |= (R128_AUX1_SC_EN | R128_AUX1_SC_MODE_OR);
  57         }
  58         if (count >= 2) {
  59                 OUT_RING(CCE_PACKET0(R128_AUX2_SC_LEFT, 3));
  60                 OUT_RING(boxes[1].x1);
  61                 OUT_RING(boxes[1].x2 - 1);
  62                 OUT_RING(boxes[1].y1);
  63                 OUT_RING(boxes[1].y2 - 1);
  64
  65                 aux_sc_cntl |= (R128_AUX2_SC_EN | R128_AUX2_SC_MODE_OR);
  66         }
  67         if (count >= 3) {
  68                 OUT_RING(CCE_PACKET0(R128_AUX3_SC_LEFT, 3));
  69                 OUT_RING(boxes[2].x1);
  70                 OUT_RING(boxes[2].x2 - 1);
  71                 OUT_RING(boxes[2].y1);
  72                 OUT_RING(boxes[2].y2 - 1);
  73
  74                 aux_sc_cntl |= (R128_AUX3_SC_EN | R128_AUX3_SC_MODE_OR);
  75         }
  76
  77         OUT_RING(CCE_PACKET0(R128_AUX_SC_CNTL, 0));
  78         OUT_RING(aux_sc_cntl);
  79
  80         ADVANCE_RING();
  81 }
  82
  83 static __inline__ void r128_emit_core(drm_r128_private_t * dev_priv)
  84 {
  85         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
  86         drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
  87         RING_LOCALS;
  88         DRM_DEBUG("\n");
  89
  90         BEGIN_RING(2);
  91
  92         OUT_RING(CCE_PACKET0(R128_SCALE_3D_CNTL, 0));
  93         OUT_RING(ctx->scale_3d_cntl);
  94
  95         ADVANCE_RING();
  96 }
  97
  98 static __inline__ void r128_emit_context(drm_r128_private_t * dev_priv)
  99 {
 100         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 101         drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 102         RING_LOCALS;
 103         DRM_DEBUG("\n");
 104
 105         BEGIN_RING(13);
 106
 107         OUT_RING(CCE_PACKET0(R128_DST_PITCH_OFFSET_C, 11));
 108         OUT_RING(ctx->dst_pitch_offset_c);
 109         OUT_RING(ctx->dp_gui_master_cntl_c);
 110         OUT_RING(ctx->sc_top_left_c);
 111         OUT_RING(ctx->sc_bottom_right_c);
 112         OUT_RING(ctx->z_offset_c);
 113         OUT_RING(ctx->z_pitch_c);
 114         OUT_RING(ctx->z_sten_cntl_c);
 115         OUT_RING(ctx->tex_cntl_c);
 116         OUT_RING(ctx->misc_3d_state_cntl_reg);
 117         OUT_RING(ctx->texture_clr_cmp_clr_c);
 118         OUT_RING(ctx->texture_clr_cmp_msk_c);
 119         OUT_RING(ctx->fog_color_c);
 120
 121         ADVANCE_RING();
 122 }
 123
 124 static __inline__ void r128_emit_setup(drm_r128_private_t * dev_priv)
 125 {
 126         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 127         drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 128         RING_LOCALS;
 129         DRM_DEBUG("\n");
 130
 131         BEGIN_RING(3);
 132
 133         OUT_RING(CCE_PACKET1(R128_SETUP_CNTL, R128_PM4_VC_FPU_SETUP));
 134         OUT_RING(ctx->setup_cntl);
 135         OUT_RING(ctx->pm4_vc_fpu_setup);
 136
 137         ADVANCE_RING();
 138 }
 139
 140 static __inline__ void r128_emit_masks(drm_r128_private_t * dev_priv)
 141 {
 142         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 143         drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 144         RING_LOCALS;
 145         DRM_DEBUG("\n");
 146
 147         BEGIN_RING(5);
 148
 149         OUT_RING(CCE_PACKET0(R128_DP_WRITE_MASK, 0));
 150         OUT_RING(ctx->dp_write_mask);
 151
 152         OUT_RING(CCE_PACKET0(R128_STEN_REF_MASK_C, 1));
 153         OUT_RING(ctx->sten_ref_mask_c);
 154         OUT_RING(ctx->plane_3d_mask_c);
 155
 156         ADVANCE_RING();
 157 }
 158
 159 static __inline__ void r128_emit_window(drm_r128_private_t * dev_priv)
 160 {
 161         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 162         drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 163         RING_LOCALS;
 164         DRM_DEBUG("\n");
 165
 166         BEGIN_RING(2);
 167
 168         OUT_RING(CCE_PACKET0(R128_WINDOW_XY_OFFSET, 0));
 169         OUT_RING(ctx->window_xy_offset);
 170
 171         ADVANCE_RING();
 172 }
 173
 174 static __inline__ void r128_emit_tex0(drm_r128_private_t * dev_priv)
 175 {
 176         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 177         drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 178         drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[0];
 179         int i;
 180         RING_LOCALS;
 181         DRM_DEBUG("\n");
 182
 183         BEGIN_RING(7 + R128_MAX_TEXTURE_LEVELS);
 184
 185         OUT_RING(CCE_PACKET0(R128_PRIM_TEX_CNTL_C,
 186                              2 + R128_MAX_TEXTURE_LEVELS));
 187         OUT_RING(tex->tex_cntl);
 188         OUT_RING(tex->tex_combine_cntl);
 189         OUT_RING(ctx->tex_size_pitch_c);
 190         for (i = 0; i < R128_MAX_TEXTURE_LEVELS; i++) {
 191                 OUT_RING(tex->tex_offset[i]);
 192         }
 193
 194         OUT_RING(CCE_PACKET0(R128_CONSTANT_COLOR_C, 1));
 195         OUT_RING(ctx->constant_color_c);
 196         OUT_RING(tex->tex_border_color);
 197
 198         ADVANCE_RING();
 199 }
 200
 201 static __inline__ void r128_emit_tex1(drm_r128_private_t * dev_priv)
 202 {
 203         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 204         drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[1];
 205         int i;
 206         RING_LOCALS;
 207         DRM_DEBUG("\n");
 208
 209         BEGIN_RING(5 + R128_MAX_TEXTURE_LEVELS);
 210
 211         OUT_RING(CCE_PACKET0(R128_SEC_TEX_CNTL_C, 1 + R128_MAX_TEXTURE_LEVELS));
 212         OUT_RING(tex->tex_cntl);
 213         OUT_RING(tex->tex_combine_cntl);
 214         for (i = 0; i < R128_MAX_TEXTURE_LEVELS; i++) {
 215                 OUT_RING(tex->tex_offset[i]);
 216         }
 217
 218         OUT_RING(CCE_PACKET0(R128_SEC_TEXTURE_BORDER_COLOR_C, 0));
 219         OUT_RING(tex->tex_border_color);
 220
 221         ADVANCE_RING();
 222 }
 223
 224 static void r128_emit_state(drm_r128_private_t * dev_priv)
 225 {
 226         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 227         unsigned int dirty = sarea_priv->dirty;
 228
 229         DRM_DEBUG("dirty=0x%08x\n", dirty);
 230
 231         if (dirty & R128_UPLOAD_CORE) {
 232                 r128_emit_core(dev_priv);
 233                 sarea_priv->dirty &= ~R128_UPLOAD_CORE;
 234         }
 235
 236         if (dirty & R128_UPLOAD_CONTEXT) {
 237                 r128_emit_context(dev_priv);
 238                 sarea_priv->dirty &= ~R128_UPLOAD_CONTEXT;
 239         }
 240
 241         if (dirty & R128_UPLOAD_SETUP) {
 242                 r128_emit_setup(dev_priv);
 243                 sarea_priv->dirty &= ~R128_UPLOAD_SETUP;
 244         }
 245
 246         if (dirty & R128_UPLOAD_MASKS) {
 247                 r128_emit_masks(dev_priv);
 248                 sarea_priv->dirty &= ~R128_UPLOAD_MASKS;
 249         }
 250
 251         if (dirty & R128_UPLOAD_WINDOW) {
 252                 r128_emit_window(dev_priv);
 253                 sarea_priv->dirty &= ~R128_UPLOAD_WINDOW;
 254         }
 255
 256         if (dirty & R128_UPLOAD_TEX0) {
 257                 r128_emit_tex0(dev_priv);
 258                 sarea_priv->dirty &= ~R128_UPLOAD_TEX0;
 259         }
 260
 261         if (dirty & R128_UPLOAD_TEX1) {
 262                 r128_emit_tex1(dev_priv);
 263                 sarea_priv->dirty &= ~R128_UPLOAD_TEX1;
 264         }
 265
 266         /* Turn off the texture cache flushing */
 267         sarea_priv->context_state.tex_cntl_c &= ~R128_TEX_CACHE_FLUSH;
 268
 269         sarea_priv->dirty &= ~R128_REQUIRE_QUIESCENCE;
 270 }
 271
 272 #if R128_PERFORMANCE_BOXES
 273 /* ================================================================
 274  * Performance monitoring functions
 275  */
 276
 277 static void r128_clear_box(drm_r128_private_t * dev_priv,
 278                            int x, int y, int w, int h, int r, int g, int b)
 279 {
 280         u32 pitch, offset;
 281         u32 fb_bpp, color;
 282         RING_LOCALS;
 283
 284         switch (dev_priv->fb_bpp) {
 285         case 16:
 286                 fb_bpp = R128_GMC_DST_16BPP;
 287                 color = (((r & 0xf8) << 8) |
 288                          ((g & 0xfc) << 3) | ((b & 0xf8) >> 3));
 289                 break;
 290         case 24:
 291                 fb_bpp = R128_GMC_DST_24BPP;
 292                 color = ((r << 16) | (g << 8) | b);
 293                 break;
 294         case 32:
 295                 fb_bpp = R128_GMC_DST_32BPP;
 296                 color = (((0xff) << 24) | (r << 16) | (g << 8) | b);
 297                 break;
 298         default:
 299                 return;
 300         }
 301
 302         offset = dev_priv->back_offset;
 303         pitch = dev_priv->back_pitch >> 3;
 304
 305         BEGIN_RING(6);
 306
 307         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 308         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 309                  R128_GMC_BRUSH_SOLID_COLOR |
 310                  fb_bpp |
 311                  R128_GMC_SRC_DATATYPE_COLOR |
 312                  R128_ROP3_P |
 313                  R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS);
 314
 315         OUT_RING((pitch << 21) | (offset >> 5));
 316         OUT_RING(color);
 317
 318         OUT_RING((x << 16) | y);
 319         OUT_RING((w << 16) | h);
 320
 321         ADVANCE_RING();
 322 }
 323
 324 static void r128_cce_performance_boxes(drm_r128_private_t * dev_priv)
 325 {
 326         if (atomic_read(&dev_priv->idle_count) == 0) {
 327                 r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
 328         } else {
 329                 atomic_set(&dev_priv->idle_count, 0);
 330         }
 331 }
 332
 333 #endif
 334
 335 /* ================================================================
 336  * CCE command dispatch functions
 337  */
 338
 339 static void r128_print_dirty(const char *msg, unsigned int flags)
 340 {
 341         DRM_INFO("%s: (0x%x) %s%s%s%s%s%s%s%s%s\n",
 342                  msg,
 343                  flags,
 344                  (flags & R128_UPLOAD_CORE) ? "core, " : "",
 345                  (flags & R128_UPLOAD_CONTEXT) ? "context, " : "",
 346                  (flags & R128_UPLOAD_SETUP) ? "setup, " : "",
 347                  (flags & R128_UPLOAD_TEX0) ? "tex0, " : "",
 348                  (flags & R128_UPLOAD_TEX1) ? "tex1, " : "",
 349                  (flags & R128_UPLOAD_MASKS) ? "masks, " : "",
 350                  (flags & R128_UPLOAD_WINDOW) ? "window, " : "",
 351                  (flags & R128_UPLOAD_CLIPRECTS) ? "cliprects, " : "",
 352                  (flags & R128_REQUIRE_QUIESCENCE) ? "quiescence, " : "");
 353 }
 354
 355 static void r128_cce_dispatch_clear(struct drm_device * dev,
 356                                     drm_r128_clear_t * clear)
 357 {
 358         drm_r128_private_t *dev_priv = dev->dev_private;
 359         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 360         int nbox = sarea_priv->nbox;
 361         struct drm_clip_rect *pbox = sarea_priv->boxes;
 362         unsigned int flags = clear->flags;
 363         int i;
 364         RING_LOCALS;
 365         DRM_DEBUG("\n");
 366
 367         if (dev_priv->page_flipping && dev_priv->current_page == 1) {
 368                 unsigned int tmp = flags;
 369
 370                 flags &= ~(R128_FRONT | R128_BACK);
 371                 if (tmp & R128_FRONT)
 372                         flags |= R128_BACK;
 373                 if (tmp & R128_BACK)
 374                         flags |= R128_FRONT;
 375         }
 376
 377         for (i = 0; i < nbox; i++) {
 378                 int x = pbox[i].x1;
 379                 int y = pbox[i].y1;
 380                 int w = pbox[i].x2 - x;
 381                 int h = pbox[i].y2 - y;
 382
 383                 DRM_DEBUG("dispatch clear %d,%d-%d,%d flags 0x%x\n",
 384                           pbox[i].x1, pbox[i].y1, pbox[i].x2,
 385                           pbox[i].y2, flags);
 386
 387                 if (flags & (R128_FRONT | R128_BACK)) {
 388                         BEGIN_RING(2);
 389
 390                         OUT_RING(CCE_PACKET0(R128_DP_WRITE_MASK, 0));
 391                         OUT_RING(clear->color_mask);
 392
 393                         ADVANCE_RING();
 394                 }
 395
 396                 if (flags & R128_FRONT) {
 397                         BEGIN_RING(6);
 398
 399                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 400                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 401                                  R128_GMC_BRUSH_SOLID_COLOR |
 402                                  (dev_priv->color_fmt << 8) |
 403                                  R128_GMC_SRC_DATATYPE_COLOR |
 404                                  R128_ROP3_P |
 405                                  R128_GMC_CLR_CMP_CNTL_DIS |
 406                                  R128_GMC_AUX_CLIP_DIS);
 407
 408                         OUT_RING(dev_priv->front_pitch_offset_c);
 409                         OUT_RING(clear->clear_color);
 410
 411                         OUT_RING((x << 16) | y);
 412                         OUT_RING((w << 16) | h);
 413
 414                         ADVANCE_RING();
 415                 }
 416
 417                 if (flags & R128_BACK) {
 418                         BEGIN_RING(6);
 419
 420                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 421                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 422                                  R128_GMC_BRUSH_SOLID_COLOR |
 423                                  (dev_priv->color_fmt << 8) |
 424                                  R128_GMC_SRC_DATATYPE_COLOR |
 425                                  R128_ROP3_P |
 426                                  R128_GMC_CLR_CMP_CNTL_DIS |
 427                                  R128_GMC_AUX_CLIP_DIS);
 428
 429                         OUT_RING(dev_priv->back_pitch_offset_c);
 430                         OUT_RING(clear->clear_color);
 431
 432                         OUT_RING((x << 16) | y);
 433                         OUT_RING((w << 16) | h);
 434
 435                         ADVANCE_RING();
 436                 }
 437
 438                 if (flags & R128_DEPTH) {
 439                         BEGIN_RING(6);
 440
 441                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 442                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 443                                  R128_GMC_BRUSH_SOLID_COLOR |
 444                                  (dev_priv->depth_fmt << 8) |
 445                                  R128_GMC_SRC_DATATYPE_COLOR |
 446                                  R128_ROP3_P |
 447                                  R128_GMC_CLR_CMP_CNTL_DIS |
 448                                  R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS);
 449
 450                         OUT_RING(dev_priv->depth_pitch_offset_c);
 451                         OUT_RING(clear->clear_depth);
 452
 453                         OUT_RING((x << 16) | y);
 454                         OUT_RING((w << 16) | h);
 455
 456                         ADVANCE_RING();
 457                 }
 458         }
 459 }
 460
 461 static void r128_cce_dispatch_swap(struct drm_device * dev)
 462 {
 463         drm_r128_private_t *dev_priv = dev->dev_private;
 464         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 465         int nbox = sarea_priv->nbox;
 466         struct drm_clip_rect *pbox = sarea_priv->boxes;
 467         int i;
 468         RING_LOCALS;
 469         DRM_DEBUG("\n");
 470
 471 #if R128_PERFORMANCE_BOXES
 472         /* Do some trivial performance monitoring...
 473          */
 474         r128_cce_performance_boxes(dev_priv);
 475 #endif
 476
 477         for (i = 0; i < nbox; i++) {
 478                 int x = pbox[i].x1;
 479                 int y = pbox[i].y1;
 480                 int w = pbox[i].x2 - x;
 481                 int h = pbox[i].y2 - y;
 482
 483                 BEGIN_RING(7);
 484
 485                 OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
 486                 OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
 487                          R128_GMC_DST_PITCH_OFFSET_CNTL |
 488                          R128_GMC_BRUSH_NONE |
 489                          (dev_priv->color_fmt << 8) |
 490                          R128_GMC_SRC_DATATYPE_COLOR |
 491                          R128_ROP3_S |
 492                          R128_DP_SRC_SOURCE_MEMORY |
 493                          R128_GMC_CLR_CMP_CNTL_DIS |
 494                          R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS);
 495
 496                 /* Make this work even if front & back are flipped:
 497                  */
 498                 if (dev_priv->current_page == 0) {
 499                         OUT_RING(dev_priv->back_pitch_offset_c);
 500                         OUT_RING(dev_priv->front_pitch_offset_c);
 501                 } else {
 502                         OUT_RING(dev_priv->front_pitch_offset_c);
 503                         OUT_RING(dev_priv->back_pitch_offset_c);
 504                 }
 505
 506                 OUT_RING((x << 16) | y);
 507                 OUT_RING((x << 16) | y);
 508                 OUT_RING((w << 16) | h);
 509
 510                 ADVANCE_RING();
 511         }
 512
 513         /* Increment the frame counter.  The client-side 3D driver must
 514          * throttle the framerate by waiting for this value before
 515          * performing the swapbuffer ioctl.
 516          */
 517         dev_priv->sarea_priv->last_frame++;
 518
 519         BEGIN_RING(2);
 520
 521         OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
 522         OUT_RING(dev_priv->sarea_priv->last_frame);
 523
 524         ADVANCE_RING();
 525 }
 526
 527 static void r128_cce_dispatch_flip(struct drm_device * dev)
 528 {
 529         drm_r128_private_t *dev_priv = dev->dev_private;
 530         RING_LOCALS;
 531         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 532                   dev_priv->current_page, dev_priv->sarea_priv->pfCurrentPage);
 533
 534 #if R128_PERFORMANCE_BOXES
 535         /* Do some trivial performance monitoring...
 536          */
 537         r128_cce_performance_boxes(dev_priv);
 538 #endif
 539
 540         BEGIN_RING(4);
 541
 542         R128_WAIT_UNTIL_PAGE_FLIPPED();
 543         OUT_RING(CCE_PACKET0(R128_CRTC_OFFSET, 0));
 544
 545         if (dev_priv->current_page == 0) {
 546                 OUT_RING(dev_priv->back_offset);
 547         } else {
 548                 OUT_RING(dev_priv->front_offset);
 549         }
 550
 551         ADVANCE_RING();
 552
 553         /* Increment the frame counter.  The client-side 3D driver must
 554          * throttle the framerate by waiting for this value before
 555          * performing the swapbuffer ioctl.
 556          */
 557         dev_priv->sarea_priv->last_frame++;
 558         dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page =
 559             1 - dev_priv->current_page;
 560
 561         BEGIN_RING(2);
 562
 563         OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
 564         OUT_RING(dev_priv->sarea_priv->last_frame);
 565
 566         ADVANCE_RING();
 567 }
 568
 569 static void r128_cce_dispatch_vertex(struct drm_device * dev, struct drm_buf * buf)
 570 {
 571         drm_r128_private_t *dev_priv = dev->dev_private;
 572         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 573         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 574         int format = sarea_priv->vc_format;
 575         int offset = buf->bus_address;
 576         int size = buf->used;
 577         int prim = buf_priv->prim;
 578         int i = 0;
 579         RING_LOCALS;
 580         DRM_DEBUG("buf=%d nbox=%d\n", buf->idx, sarea_priv->nbox);
 581
 582         if (0)
 583                 r128_print_dirty("dispatch_vertex", sarea_priv->dirty);
 584
 585         if (buf->used) {
 586                 buf_priv->dispatched = 1;
 587
 588                 if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS) {
 589                         r128_emit_state(dev_priv);
 590                 }
 591
 592                 do {
 593                         /* Emit the next set of up to three cliprects */
 594                         if (i < sarea_priv->nbox) {
 595                                 r128_emit_clip_rects(dev_priv,
 596                                                      &sarea_priv->boxes[i],
 597                                                      sarea_priv->nbox - i);
 598                         }
 599
 600                         /* Emit the vertex buffer rendering commands */
 601                         BEGIN_RING(5);
 602
 603                         OUT_RING(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM, 3));
 604                         OUT_RING(offset);
 605                         OUT_RING(size);
 606                         OUT_RING(format);
 607                         OUT_RING(prim | R128_CCE_VC_CNTL_PRIM_WALK_LIST |
 608                                  (size << R128_CCE_VC_CNTL_NUM_SHIFT));
 609
 610                         ADVANCE_RING();
 611
 612                         i += 3;
 613                 } while (i < sarea_priv->nbox);
 614         }
 615
 616         if (buf_priv->discard) {
 617                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 618
 619                 /* Emit the vertex buffer age */
 620                 BEGIN_RING(2);
 621
 622                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 623                 OUT_RING(buf_priv->age);
 624
 625                 ADVANCE_RING();
 626
 627                 buf->pending = 1;
 628                 buf->used = 0;
 629                 /* FIXME: Check dispatched field */
 630                 buf_priv->dispatched = 0;
 631         }
 632
 633         dev_priv->sarea_priv->last_dispatch++;
 634
 635         sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
 636         sarea_priv->nbox = 0;
 637 }
 638
 639 static void r128_cce_dispatch_indirect(struct drm_device * dev,
 640                                        struct drm_buf * buf, int start, int end)
 641 {
 642         drm_r128_private_t *dev_priv = dev->dev_private;
 643         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 644         RING_LOCALS;
 645         DRM_DEBUG("indirect: buf=%d s=0x%x e=0x%x\n", buf->idx, start, end);
 646
 647         if (start != end) {
 648                 int offset = buf->bus_address + start;
 649                 int dwords = (end - start + 3) / sizeof(u32);
 650
 651                 /* Indirect buffer data must be an even number of
 652                  * dwords, so if we've been given an odd number we must
 653                  * pad the data with a Type-2 CCE packet.
 654                  */
 655                 if (dwords & 1) {
 656                         u32 *data = (u32 *)
 657                             ((char *)dev->agp_buffer_map->handle
 658                              + buf->offset + start);
 659                         data[dwords++] = cpu_to_le32(R128_CCE_PACKET2);
 660                 }
 661
 662                 buf_priv->dispatched = 1;
 663
 664                 /* Fire off the indirect buffer */
 665                 BEGIN_RING(3);
 666
 667                 OUT_RING(CCE_PACKET0(R128_PM4_IW_INDOFF, 1));
 668                 OUT_RING(offset);
 669                 OUT_RING(dwords);
 670
 671                 ADVANCE_RING();
 672         }
 673
 674         if (buf_priv->discard) {
 675                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 676
 677                 /* Emit the indirect buffer age */
 678                 BEGIN_RING(2);
 679
 680                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 681                 OUT_RING(buf_priv->age);
 682
 683                 ADVANCE_RING();
 684
 685                 buf->pending = 1;
 686                 buf->used = 0;
 687                 /* FIXME: Check dispatched field */
 688                 buf_priv->dispatched = 0;
 689         }
 690
 691         dev_priv->sarea_priv->last_dispatch++;
 692 }
 693
 694 static void r128_cce_dispatch_indices(struct drm_device * dev,
 695                                       struct drm_buf * buf,
 696                                       int start, int end, int count)
 697 {
 698         drm_r128_private_t *dev_priv = dev->dev_private;
 699         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 700         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 701         int format = sarea_priv->vc_format;
 702         int offset = dev->agp_buffer_map->offset - dev_priv->cce_buffers_offset;
 703         int prim = buf_priv->prim;
 704         u32 *data;
 705         int dwords;
 706         int i = 0;
 707         RING_LOCALS;
 708         DRM_DEBUG("indices: s=%d e=%d c=%d\n", start, end, count);
 709
 710         if (0)
 711                 r128_print_dirty("dispatch_indices", sarea_priv->dirty);
 712
 713         if (start != end) {
 714                 buf_priv->dispatched = 1;
 715
 716                 if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS) {
 717                         r128_emit_state(dev_priv);
 718                 }
 719
 720                 dwords = (end - start + 3) / sizeof(u32);
 721
 722                 data = (u32 *) ((char *)dev->agp_buffer_map->handle
 723                                 + buf->offset + start);
 724
 725                 data[0] = cpu_to_le32(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM,
 726                                                   dwords - 2));
 727
 728                 data[1] = cpu_to_le32(offset);
 729                 data[2] = cpu_to_le32(R128_MAX_VB_VERTS);
 730                 data[3] = cpu_to_le32(format);
 731                 data[4] = cpu_to_le32((prim | R128_CCE_VC_CNTL_PRIM_WALK_IND |
 732                                        (count << 16)));
 733
 734                 if (count & 0x1) {
 735 #ifdef __LITTLE_ENDIAN
 736                         data[dwords - 1] &= 0x0000ffff;
 737 #else
 738                         data[dwords - 1] &= 0xffff0000;
 739 #endif
 740                 }
 741
 742                 do {
 743                         /* Emit the next set of up to three cliprects */
 744                         if (i < sarea_priv->nbox) {
 745                                 r128_emit_clip_rects(dev_priv,
 746                                                      &sarea_priv->boxes[i],
 747                                                      sarea_priv->nbox - i);
 748                         }
 749
 750                         r128_cce_dispatch_indirect(dev, buf, start, end);
 751
 752                         i += 3;
 753                 } while (i < sarea_priv->nbox);
 754         }
 755
 756         if (buf_priv->discard) {
 757                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 758
 759                 /* Emit the vertex buffer age */
 760                 BEGIN_RING(2);
 761
 762                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 763                 OUT_RING(buf_priv->age);
 764
 765                 ADVANCE_RING();
 766
 767                 buf->pending = 1;
 768                 /* FIXME: Check dispatched field */
 769                 buf_priv->dispatched = 0;
 770         }
 771
 772         dev_priv->sarea_priv->last_dispatch++;
 773
 774         sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
 775         sarea_priv->nbox = 0;
 776 }
 777
 778 static int r128_cce_dispatch_blit(struct drm_device * dev,
 779                                   struct drm_file *file_priv,
 780                                   drm_r128_blit_t * blit)
 781 {
 782         drm_r128_private_t *dev_priv = dev->dev_private;
 783         struct drm_device_dma *dma = dev->dma;
 784         struct drm_buf *buf;
 785         drm_r128_buf_priv_t *buf_priv;
 786         u32 *data;
 787         int dword_shift, dwords;
 788         RING_LOCALS;
 789         DRM_DEBUG("\n");
 790
 791         /* The compiler won't optimize away a division by a variable,
 792          * even if the only legal values are powers of two.  Thus, we'll
 793          * use a shift instead.
 794          */
 795         switch (blit->format) {
 796         case R128_DATATYPE_ARGB8888:
 797                 dword_shift = 0;
 798                 break;
 799         case R128_DATATYPE_ARGB1555:
 800         case R128_DATATYPE_RGB565:
 801         case R128_DATATYPE_ARGB4444:
 802         case R128_DATATYPE_YVYU422:
 803         case R128_DATATYPE_VYUY422:
 804                 dword_shift = 1;
 805                 break;
 806         case R128_DATATYPE_CI8:
 807         case R128_DATATYPE_RGB8:
 808                 dword_shift = 2;
 809                 break;
 810         default:
 811                 DRM_ERROR("invalid blit format %d\n", blit->format);
 812                 return -EINVAL;
 813         }
 814
 815         /* Flush the pixel cache, and mark the contents as Read Invalid.
 816          * This ensures no pixel data gets mixed up with the texture
 817          * data from the host data blit, otherwise part of the texture
 818          * image may be corrupted.
 819          */
 820         BEGIN_RING(2);
 821
 822         OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
 823         OUT_RING(R128_PC_RI_GUI | R128_PC_FLUSH_GUI);
 824
 825         ADVANCE_RING();
 826
 827         /* Dispatch the indirect buffer.
 828          */
 829         buf = dma->buflist[blit->idx];
 830         buf_priv = buf->dev_private;
 831
 832         if (buf->file_priv != file_priv) {
 833                 DRM_ERROR("process %d using buffer owned by %p\n",
 834                           DRM_CURRENTPID, buf->file_priv);
 835                 return -EINVAL;
 836         }
 837         if (buf->pending) {
 838                 DRM_ERROR("sending pending buffer %d\n", blit->idx);
 839                 return -EINVAL;
 840         }
 841
 842         buf_priv->discard = 1;
 843
 844         dwords = (blit->width * blit->height) >> dword_shift;
 845
 846         data = (u32 *) ((char *)dev->agp_buffer_map->handle + buf->offset);
 847
 848         data[0] = cpu_to_le32(CCE_PACKET3(R128_CNTL_HOSTDATA_BLT, dwords + 6));
 849         data[1] = cpu_to_le32((R128_GMC_DST_PITCH_OFFSET_CNTL |
 850                                R128_GMC_BRUSH_NONE |
 851                                (blit->format << 8) |
 852                                R128_GMC_SRC_DATATYPE_COLOR |
 853                                R128_ROP3_S |
 854                                R128_DP_SRC_SOURCE_HOST_DATA |
 855                                R128_GMC_CLR_CMP_CNTL_DIS |
 856                                R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS));
 857
 858         data[2] = cpu_to_le32((blit->pitch << 21) | (blit->offset >> 5));
 859         data[3] = cpu_to_le32(0xffffffff);
 860         data[4] = cpu_to_le32(0xffffffff);
 861         data[5] = cpu_to_le32((blit->y << 16) | blit->x);
 862         data[6] = cpu_to_le32((blit->height << 16) | blit->width);
 863         data[7] = cpu_to_le32(dwords);
 864
 865         buf->used = (dwords + 8) * sizeof(u32);
 866
 867         r128_cce_dispatch_indirect(dev, buf, 0, buf->used);
 868
 869         /* Flush the pixel cache after the blit completes.  This ensures
 870          * the texture data is written out to memory before rendering
 871          * continues.
 872          */
 873         BEGIN_RING(2);
 874
 875         OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
 876         OUT_RING(R128_PC_FLUSH_GUI);
 877
 878         ADVANCE_RING();
 879
 880         return 0;
 881 }
 882
 883 /* ================================================================
 884  * Tiled depth buffer management
 885  *
 886  * FIXME: These should all set the destination write mask for when we
 887  * have hardware stencil support.
 888  */
 889
 890 static int r128_cce_dispatch_write_span(struct drm_device * dev,
 891                                         drm_r128_depth_t * depth)
 892 {
 893         drm_r128_private_t *dev_priv = dev->dev_private;
 894         int count, x, y;
 895         u32 *buffer;
 896         u8 *mask;
 897         int i, buffer_size, mask_size;
 898         RING_LOCALS;
 899         DRM_DEBUG("\n");
 900
 901         count = depth->n;
 902         if (count > 4096 || count <= 0)
 903                 return -EMSGSIZE;
 904
 905         if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) {
 906                 return -EFAULT;
 907         }
 908         if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) {
 909                 return -EFAULT;
 910         }
 911
 912         buffer_size = depth->n * sizeof(u32);
 913         buffer = drm_alloc(buffer_size, DRM_MEM_BUFS);
 914         if (buffer == NULL)
 915                 return -ENOMEM;
 916         if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) {
 917                 drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 918                 return -EFAULT;
 919         }
 920
 921         mask_size = depth->n * sizeof(u8);
 922         if (depth->mask) {
 923                 mask = drm_alloc(mask_size, DRM_MEM_BUFS);
 924                 if (mask == NULL) {
 925                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 926                         return -ENOMEM;
 927                 }
 928                 if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) {
 929                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 930                         drm_free(mask, mask_size, DRM_MEM_BUFS);
 931                         return -EFAULT;
 932                 }
 933
 934                 for (i = 0; i < count; i++, x++) {
 935                         if (mask[i]) {
 936                                 BEGIN_RING(6);
 937
 938                                 OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 939                                 OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 940                                          R128_GMC_BRUSH_SOLID_COLOR |
 941                                          (dev_priv->depth_fmt << 8) |
 942                                          R128_GMC_SRC_DATATYPE_COLOR |
 943                                          R128_ROP3_P |
 944                                          R128_GMC_CLR_CMP_CNTL_DIS |
 945                                          R128_GMC_WR_MSK_DIS);
 946
 947                                 OUT_RING(dev_priv->depth_pitch_offset_c);
 948                                 OUT_RING(buffer[i]);
 949
 950                                 OUT_RING((x << 16) | y);
 951                                 OUT_RING((1 << 16) | 1);
 952
 953                                 ADVANCE_RING();
 954                         }
 955                 }
 956
 957                 drm_free(mask, mask_size, DRM_MEM_BUFS);
 958         } else {
 959                 for (i = 0; i < count; i++, x++) {
 960                         BEGIN_RING(6);
 961
 962                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 963                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 964                                  R128_GMC_BRUSH_SOLID_COLOR |
 965                                  (dev_priv->depth_fmt << 8) |
 966                                  R128_GMC_SRC_DATATYPE_COLOR |
 967                                  R128_ROP3_P |
 968                                  R128_GMC_CLR_CMP_CNTL_DIS |
 969                                  R128_GMC_WR_MSK_DIS);
 970
 971                         OUT_RING(dev_priv->depth_pitch_offset_c);
 972                         OUT_RING(buffer[i]);
 973
 974                         OUT_RING((x << 16) | y);
 975                         OUT_RING((1 << 16) | 1);
 976
 977                         ADVANCE_RING();
 978                 }
 979         }
 980
 981         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 982
 983         return 0;
 984 }
 985
 986 static int r128_cce_dispatch_write_pixels(struct drm_device * dev,
 987                                           drm_r128_depth_t * depth)
 988 {
 989         drm_r128_private_t *dev_priv = dev->dev_private;
 990         int count, *x, *y;
 991         u32 *buffer;
 992         u8 *mask;
 993         int i, xbuf_size, ybuf_size, buffer_size, mask_size;
 994         RING_LOCALS;
 995         DRM_DEBUG("\n");
 996
 997         count = depth->n;
 998         if (count > 4096 || count <= 0)
 999                 return -EMSGSIZE;
1000
1001         xbuf_size = count * sizeof(*x);
1002         ybuf_size = count * sizeof(*y);
1003         x = drm_alloc(xbuf_size, DRM_MEM_BUFS);
1004         if (x == NULL) {
1005                 return -ENOMEM;
1006         }
1007         y = drm_alloc(ybuf_size, DRM_MEM_BUFS);
1008         if (y == NULL) {
1009                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1010                 return -ENOMEM;
1011         }
1012         if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) {
1013                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1014                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1015                 return -EFAULT;
1016         }
1017         if (DRM_COPY_FROM_USER(y, depth->y, xbuf_size)) {
1018                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1019                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1020                 return -EFAULT;
1021         }
1022
1023         buffer_size = depth->n * sizeof(u32);
1024         buffer = drm_alloc(buffer_size, DRM_MEM_BUFS);
1025         if (buffer == NULL) {
1026                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1027                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1028                 return -ENOMEM;
1029         }
1030         if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) {
1031                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1032                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1033                 drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1034                 return -EFAULT;
1035         }
1036
1037         if (depth->mask) {
1038                 mask_size = depth->n * sizeof(u8);
1039                 mask = drm_alloc(mask_size, DRM_MEM_BUFS);
1040                 if (mask == NULL) {
1041                         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1042                         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1043                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1044                         return -ENOMEM;
1045                 }
1046                 if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) {
1047                         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1048                         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1049                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1050                         drm_free(mask, mask_size, DRM_MEM_BUFS);
1051                         return -EFAULT;
1052                 }
1053
1054                 for (i = 0; i < count; i++) {
1055                         if (mask[i]) {
1056                                 BEGIN_RING(6);
1057
1058                                 OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1059                                 OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1060                                          R128_GMC_BRUSH_SOLID_COLOR |
1061                                          (dev_priv->depth_fmt << 8) |
1062                                          R128_GMC_SRC_DATATYPE_COLOR |
1063                                          R128_ROP3_P |
1064                                          R128_GMC_CLR_CMP_CNTL_DIS |
1065                                          R128_GMC_WR_MSK_DIS);
1066
1067                                 OUT_RING(dev_priv->depth_pitch_offset_c);
1068                                 OUT_RING(buffer[i]);
1069
1070                                 OUT_RING((x[i] << 16) | y[i]);
1071                                 OUT_RING((1 << 16) | 1);
1072
1073                                 ADVANCE_RING();
1074                         }
1075                 }
1076
1077                 drm_free(mask, mask_size, DRM_MEM_BUFS);
1078         } else {
1079                 for (i = 0; i < count; i++) {
1080                         BEGIN_RING(6);
1081
1082                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1083                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1084                                  R128_GMC_BRUSH_SOLID_COLOR |
1085                                  (dev_priv->depth_fmt << 8) |
1086                                  R128_GMC_SRC_DATATYPE_COLOR |
1087                                  R128_ROP3_P |
1088                                  R128_GMC_CLR_CMP_CNTL_DIS |
1089                                  R128_GMC_WR_MSK_DIS);
1090
1091                         OUT_RING(dev_priv->depth_pitch_offset_c);
1092                         OUT_RING(buffer[i]);
1093
1094                         OUT_RING((x[i] << 16) | y[i]);
1095                         OUT_RING((1 << 16) | 1);
1096
1097                         ADVANCE_RING();
1098                 }
1099         }
1100
1101         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1102         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1103         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1104
1105         return 0;
1106 }
1107
1108 static int r128_cce_dispatch_read_span(struct drm_device * dev,
1109                                        drm_r128_depth_t * depth)
1110 {
1111         drm_r128_private_t *dev_priv = dev->dev_private;
1112         int count, x, y;
1113         RING_LOCALS;
1114         DRM_DEBUG("\n");
1115
1116         count = depth->n;
1117         if (count > 4096 || count <= 0)
1118                 return -EMSGSIZE;
1119
1120         if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) {
1121                 return -EFAULT;
1122         }
1123         if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) {
1124                 return -EFAULT;
1125         }
1126
1127         BEGIN_RING(7);
1128
1129         OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1130         OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1131                  R128_GMC_DST_PITCH_OFFSET_CNTL |
1132                  R128_GMC_BRUSH_NONE |
1133                  (dev_priv->depth_fmt << 8) |
1134                  R128_GMC_SRC_DATATYPE_COLOR |
1135                  R128_ROP3_S |
1136                  R128_DP_SRC_SOURCE_MEMORY |
1137                  R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1138
1139         OUT_RING(dev_priv->depth_pitch_offset_c);
1140         OUT_RING(dev_priv->span_pitch_offset_c);
1141
1142         OUT_RING((x << 16) | y);
1143         OUT_RING((0 << 16) | 0);
1144         OUT_RING((count << 16) | 1);
1145
1146         ADVANCE_RING();
1147
1148         return 0;
1149 }
1150
1151 static int r128_cce_dispatch_read_pixels(struct drm_device * dev,
1152                                          drm_r128_depth_t * depth)
1153 {
1154         drm_r128_private_t *dev_priv = dev->dev_private;
1155         int count, *x, *y;
1156         int i, xbuf_size, ybuf_size;
1157         RING_LOCALS;
1158         DRM_DEBUG("\n");
1159
1160         count = depth->n;
1161         if (count > 4096 || count <= 0)
1162                 return -EMSGSIZE;
1163
1164         if (count > dev_priv->depth_pitch) {
1165                 count = dev_priv->depth_pitch;
1166         }
1167
1168         xbuf_size = count * sizeof(*x);
1169         ybuf_size = count * sizeof(*y);
1170         x = drm_alloc(xbuf_size, DRM_MEM_BUFS);
1171         if (x == NULL) {
1172                 return -ENOMEM;
1173         }
1174         y = drm_alloc(ybuf_size, DRM_MEM_BUFS);
1175         if (y == NULL) {
1176                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1177                 return -ENOMEM;
1178         }
1179         if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) {
1180                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1181                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1182                 return -EFAULT;
1183         }
1184         if (DRM_COPY_FROM_USER(y, depth->y, ybuf_size)) {
1185                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1186                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1187                 return -EFAULT;
1188         }
1189
1190         for (i = 0; i < count; i++) {
1191                 BEGIN_RING(7);
1192
1193                 OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1194                 OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1195                          R128_GMC_DST_PITCH_OFFSET_CNTL |
1196                          R128_GMC_BRUSH_NONE |
1197                          (dev_priv->depth_fmt << 8) |
1198                          R128_GMC_SRC_DATATYPE_COLOR |
1199                          R128_ROP3_S |
1200                          R128_DP_SRC_SOURCE_MEMORY |
1201                          R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1202
1203                 OUT_RING(dev_priv->depth_pitch_offset_c);
1204                 OUT_RING(dev_priv->span_pitch_offset_c);
1205
1206                 OUT_RING((x[i] << 16) | y[i]);
1207                 OUT_RING((i << 16) | 0);
1208                 OUT_RING((1 << 16) | 1);
1209
1210                 ADVANCE_RING();
1211         }
1212
1213         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1214         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1215
1216         return 0;
1217 }
1218
1219 /* ================================================================
1220  * Polygon stipple
1221  */
1222
1223 static void r128_cce_dispatch_stipple(struct drm_device * dev, u32 * stipple)
1224 {
1225         drm_r128_private_t *dev_priv = dev->dev_private;
1226         int i;
1227         RING_LOCALS;
1228         DRM_DEBUG("\n");
1229
1230         BEGIN_RING(33);
1231
1232         OUT_RING(CCE_PACKET0(R128_BRUSH_DATA0, 31));
1233         for (i = 0; i < 32; i++) {
1234                 OUT_RING(stipple[i]);
1235         }
1236
1237         ADVANCE_RING();
1238 }
1239
1240 /* ================================================================
1241  * IOCTL functions
1242  */
1243
1244 static int r128_cce_clear(struct drm_device *dev, void *data, struct drm_file *file_priv)
1245 {
1246         drm_r128_private_t *dev_priv = dev->dev_private;
1247         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1248         drm_r128_clear_t *clear = data;
1249         DRM_DEBUG("\n");
1250
1251         LOCK_TEST_WITH_RETURN(dev, file_priv);
1252
1253         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1254
1255         if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1256                 sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1257
1258         r128_cce_dispatch_clear(dev, clear);
1259         COMMIT_RING();
1260
1261         /* Make sure we restore the 3D state next time.
1262          */
1263         dev_priv->sarea_priv->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
1264
1265         return 0;
1266 }
1267
1268 static int r128_do_init_pageflip(struct drm_device * dev)
1269 {
1270         drm_r128_private_t *dev_priv = dev->dev_private;
1271         DRM_DEBUG("\n");
1272
1273         dev_priv->crtc_offset = R128_READ(R128_CRTC_OFFSET);
1274         dev_priv->crtc_offset_cntl = R128_READ(R128_CRTC_OFFSET_CNTL);
1275
1276         R128_WRITE(R128_CRTC_OFFSET, dev_priv->front_offset);
1277         R128_WRITE(R128_CRTC_OFFSET_CNTL,
1278                    dev_priv->crtc_offset_cntl | R128_CRTC_OFFSET_FLIP_CNTL);
1279
1280         dev_priv->page_flipping = 1;
1281         dev_priv->current_page = 0;
1282         dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page;
1283
1284         return 0;
1285 }
1286
1287 static int r128_do_cleanup_pageflip(struct drm_device * dev)
1288 {
1289         drm_r128_private_t *dev_priv = dev->dev_private;
1290         DRM_DEBUG("\n");
1291
1292         R128_WRITE(R128_CRTC_OFFSET, dev_priv->crtc_offset);
1293         R128_WRITE(R128_CRTC_OFFSET_CNTL, dev_priv->crtc_offset_cntl);
1294
1295         if (dev_priv->current_page != 0) {
1296                 r128_cce_dispatch_flip(dev);
1297                 COMMIT_RING();
1298         }
1299
1300         dev_priv->page_flipping = 0;
1301         return 0;
1302 }
1303
1304 /* Swapping and flipping are different operations, need different ioctls.
1305  * They can & should be intermixed to support multiple 3d windows.
1306  */
1307
1308 static int r128_cce_flip(struct drm_device *dev, void *data, struct drm_file *file_priv)
1309 {
1310         drm_r128_private_t *dev_priv = dev->dev_private;
1311         DRM_DEBUG("\n");
1312
1313         LOCK_TEST_WITH_RETURN(dev, file_priv);
1314
1315         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1316
1317         if (!dev_priv->page_flipping)
1318                 r128_do_init_pageflip(dev);
1319
1320         r128_cce_dispatch_flip(dev);
1321
1322         COMMIT_RING();
1323         return 0;
1324 }
1325
1326 static int r128_cce_swap(struct drm_device *dev, void *data, struct drm_file *file_priv)
1327 {
1328         drm_r128_private_t *dev_priv = dev->dev_private;
1329         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1330         DRM_DEBUG("\n");
1331
1332         LOCK_TEST_WITH_RETURN(dev, file_priv);
1333
1334         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1335
1336         if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1337                 sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1338
1339         r128_cce_dispatch_swap(dev);
1340         dev_priv->sarea_priv->dirty |= (R128_UPLOAD_CONTEXT |
1341                                         R128_UPLOAD_MASKS);
1342
1343         COMMIT_RING();
1344         return 0;
1345 }
1346
1347 static int r128_cce_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv)
1348 {
1349         drm_r128_private_t *dev_priv = dev->dev_private;
1350         struct drm_device_dma *dma = dev->dma;
1351         struct drm_buf *buf;
1352         drm_r128_buf_priv_t *buf_priv;
1353         drm_r128_vertex_t *vertex = data;
1354
1355         LOCK_TEST_WITH_RETURN(dev, file_priv);
1356
1357         if (!dev_priv) {
1358                 DRM_ERROR("called with no initialization\n");
1359                 return -EINVAL;
1360         }
1361
1362         DRM_DEBUG("pid=%d index=%d count=%d discard=%d\n",
1363                   DRM_CURRENTPID, vertex->idx, vertex->count, vertex->discard);
1364
1365         if (vertex->idx < 0 || vertex->idx >= dma->buf_count) {
1366                 DRM_ERROR("buffer index %d (of %d max)\n",
1367                           vertex->idx, dma->buf_count - 1);
1368                 return -EINVAL;
1369         }
1370         if (vertex->prim < 0 ||
1371             vertex->prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1372                 DRM_ERROR("buffer prim %d\n", vertex->prim);
1373                 return -EINVAL;
1374         }
1375
1376         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1377         VB_AGE_TEST_WITH_RETURN(dev_priv);
1378
1379         buf = dma->buflist[vertex->idx];
1380         buf_priv = buf->dev_private;
1381
1382         if (buf->file_priv != file_priv) {
1383                 DRM_ERROR("process %d using buffer owned by %p\n",
1384                           DRM_CURRENTPID, buf->file_priv);
1385                 return -EINVAL;
1386         }
1387         if (buf->pending) {
1388                 DRM_ERROR("sending pending buffer %d\n", vertex->idx);
1389                 return -EINVAL;
1390         }
1391
1392         buf->used = vertex->count;
1393         buf_priv->prim = vertex->prim;
1394         buf_priv->discard = vertex->discard;
1395
1396         r128_cce_dispatch_vertex(dev, buf);
1397
1398         COMMIT_RING();
1399         return 0;
1400 }
1401
1402 static int r128_cce_indices(struct drm_device *dev, void *data, struct drm_file *file_priv)
1403 {
1404         drm_r128_private_t *dev_priv = dev->dev_private;
1405         struct drm_device_dma *dma = dev->dma;
1406         struct drm_buf *buf;
1407         drm_r128_buf_priv_t *buf_priv;
1408         drm_r128_indices_t *elts = data;
1409         int count;
1410
1411         LOCK_TEST_WITH_RETURN(dev, file_priv);
1412
1413         if (!dev_priv) {
1414                 DRM_ERROR("called with no initialization\n");
1415                 return -EINVAL;
1416         }
1417
1418         DRM_DEBUG("pid=%d buf=%d s=%d e=%d d=%d\n", DRM_CURRENTPID,
1419                   elts->idx, elts->start, elts->end, elts->discard);
1420
1421         if (elts->idx < 0 || elts->idx >= dma->buf_count) {
1422                 DRM_ERROR("buffer index %d (of %d max)\n",
1423                           elts->idx, dma->buf_count - 1);
1424                 return -EINVAL;
1425         }
1426         if (elts->prim < 0 ||
1427             elts->prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1428                 DRM_ERROR("buffer prim %d\n", elts->prim);
1429                 return -EINVAL;
1430         }
1431
1432         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1433         VB_AGE_TEST_WITH_RETURN(dev_priv);
1434
1435         buf = dma->buflist[elts->idx];
1436         buf_priv = buf->dev_private;
1437
1438         if (buf->file_priv != file_priv) {
1439                 DRM_ERROR("process %d using buffer owned by %p\n",
1440                           DRM_CURRENTPID, buf->file_priv);
1441                 return -EINVAL;
1442         }
1443         if (buf->pending) {
1444                 DRM_ERROR("sending pending buffer %d\n", elts->idx);
1445                 return -EINVAL;
1446         }
1447
1448         count = (elts->end - elts->start) / sizeof(u16);
1449         elts->start -= R128_INDEX_PRIM_OFFSET;
1450
1451         if (elts->start & 0x7) {
1452                 DRM_ERROR("misaligned buffer 0x%x\n", elts->start);
1453                 return -EINVAL;
1454         }
1455         if (elts->start < buf->used) {
1456                 DRM_ERROR("no header 0x%x - 0x%x\n", elts->start, buf->used);
1457                 return -EINVAL;
1458         }
1459
1460         buf->used = elts->end;
1461         buf_priv->prim = elts->prim;
1462         buf_priv->discard = elts->discard;
1463
1464         r128_cce_dispatch_indices(dev, buf, elts->start, elts->end, count);
1465
1466         COMMIT_RING();
1467         return 0;
1468 }
1469
1470 static int r128_cce_blit(struct drm_device *dev, void *data, struct drm_file *file_priv)
1471 {
1472         struct drm_device_dma *dma = dev->dma;
1473         drm_r128_private_t *dev_priv = dev->dev_private;
1474         drm_r128_blit_t *blit = data;
1475         int ret;
1476
1477         LOCK_TEST_WITH_RETURN(dev, file_priv);
1478
1479         DRM_DEBUG("pid=%d index=%d\n", DRM_CURRENTPID, blit->idx);
1480
1481         if (blit->idx < 0 || blit->idx >= dma->buf_count) {
1482                 DRM_ERROR("buffer index %d (of %d max)\n",
1483                           blit->idx, dma->buf_count - 1);
1484                 return -EINVAL;
1485         }
1486
1487         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1488         VB_AGE_TEST_WITH_RETURN(dev_priv);
1489
1490         ret = r128_cce_dispatch_blit(dev, file_priv, blit);
1491
1492         COMMIT_RING();
1493         return ret;
1494 }
1495
1496 static int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv)
1497 {
1498         drm_r128_private_t *dev_priv = dev->dev_private;
1499         drm_r128_depth_t *depth = data;
1500         int ret;
1501
1502         LOCK_TEST_WITH_RETURN(dev, file_priv);
1503
1504         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1505
1506         ret = -EINVAL;
1507         switch (depth->func) {
1508         case R128_WRITE_SPAN:
1509                 ret = r128_cce_dispatch_write_span(dev, depth);
1510                 break;
1511         case R128_WRITE_PIXELS:
1512                 ret = r128_cce_dispatch_write_pixels(dev, depth);
1513                 break;
1514         case R128_READ_SPAN:
1515                 ret = r128_cce_dispatch_read_span(dev, depth);
1516                 break;
1517         case R128_READ_PIXELS:
1518                 ret = r128_cce_dispatch_read_pixels(dev, depth);
1519                 break;
1520         }
1521
1522         COMMIT_RING();
1523         return ret;
1524 }
1525
1526 static int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv)
1527 {
1528         drm_r128_private_t *dev_priv = dev->dev_private;
1529         drm_r128_stipple_t *stipple = data;
1530         u32 mask[32];
1531
1532         LOCK_TEST_WITH_RETURN(dev, file_priv);
1533
1534         if (DRM_COPY_FROM_USER(&mask, stipple->mask, 32 * sizeof(u32)))
1535                 return -EFAULT;
1536
1537         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1538
1539         r128_cce_dispatch_stipple(dev, mask);
1540
1541         COMMIT_RING();
1542         return 0;
1543 }
1544
1545 static int r128_cce_indirect(struct drm_device *dev, void *data, struct drm_file *file_priv)
1546 {
1547         drm_r128_private_t *dev_priv = dev->dev_private;
1548         struct drm_device_dma *dma = dev->dma;
1549         struct drm_buf *buf;
1550         drm_r128_buf_priv_t *buf_priv;
1551         drm_r128_indirect_t *indirect = data;
1552 #if 0
1553         RING_LOCALS;
1554 #endif
1555
1556         LOCK_TEST_WITH_RETURN(dev, file_priv);
1557
1558         if (!dev_priv) {
1559                 DRM_ERROR("called with no initialization\n");
1560                 return -EINVAL;
1561         }
1562
1563         DRM_DEBUG("idx=%d s=%d e=%d d=%d\n",
1564                   indirect->idx, indirect->start, indirect->end,
1565                   indirect->discard);
1566
1567         if (indirect->idx < 0 || indirect->idx >= dma->buf_count) {
1568                 DRM_ERROR("buffer index %d (of %d max)\n",
1569                           indirect->idx, dma->buf_count - 1);
1570                 return -EINVAL;
1571         }
1572
1573         buf = dma->buflist[indirect->idx];
1574         buf_priv = buf->dev_private;
1575
1576         if (buf->file_priv != file_priv) {
1577                 DRM_ERROR("process %d using buffer owned by %p\n",
1578                           DRM_CURRENTPID, buf->file_priv);
1579                 return -EINVAL;
1580         }
1581         if (buf->pending) {
1582                 DRM_ERROR("sending pending buffer %d\n", indirect->idx);
1583                 return -EINVAL;
1584         }
1585
1586         if (indirect->start < buf->used) {
1587                 DRM_ERROR("reusing indirect: start=0x%x actual=0x%x\n",
1588                           indirect->start, buf->used);
1589                 return -EINVAL;
1590         }
1591
1592         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1593         VB_AGE_TEST_WITH_RETURN(dev_priv);
1594
1595         buf->used = indirect->end;
1596         buf_priv->discard = indirect->discard;
1597
1598 #if 0
1599         /* Wait for the 3D stream to idle before the indirect buffer
1600          * containing 2D acceleration commands is processed.
1601          */
1602         BEGIN_RING(2);
1603         RADEON_WAIT_UNTIL_3D_IDLE();
1604         ADVANCE_RING();
1605 #endif
1606
1607         /* Dispatch the indirect buffer full of commands from the
1608          * X server.  This is insecure and is thus only available to
1609          * privileged clients.
1610          */
1611         r128_cce_dispatch_indirect(dev, buf, indirect->start, indirect->end);
1612
1613         COMMIT_RING();
1614         return 0;
1615 }
1616
1617 static int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
1618 {
1619         drm_r128_private_t *dev_priv = dev->dev_private;
1620         drm_r128_getparam_t *param = data;
1621         int value;
1622
1623         if (!dev_priv) {
1624                 DRM_ERROR("called with no initialization\n");
1625                 return -EINVAL;
1626         }
1627
1628         DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1629
1630         switch (param->param) {
1631         case R128_PARAM_IRQ_NR:
1632                 value = dev->irq;
1633                 break;
1634         default:
1635                 return -EINVAL;
1636         }
1637
1638         if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
1639                 DRM_ERROR("copy_to_user\n");
1640                 return -EFAULT;
1641         }
1642
1643         return 0;
1644 }
1645
1646 void r128_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1647 {
1648         if (dev->dev_private) {
1649                 drm_r128_private_t *dev_priv = dev->dev_private;
1650                 if (dev_priv->page_flipping) {
1651                         r128_do_cleanup_pageflip(dev);
1652                 }
1653         }
1654 }
1655
1656 void r128_driver_lastclose(struct drm_device * dev)
1657 {
1658         r128_do_cleanup_cce(dev);
1659 }
1660
1661 struct drm_ioctl_desc r128_ioctls[] = {
1662         DRM_IOCTL_DEF(DRM_R128_INIT, r128_cce_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1663         DRM_IOCTL_DEF(DRM_R128_CCE_START, r128_cce_start, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1664         DRM_IOCTL_DEF(DRM_R128_CCE_STOP, r128_cce_stop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1665         DRM_IOCTL_DEF(DRM_R128_CCE_RESET, r128_cce_reset, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1666         DRM_IOCTL_DEF(DRM_R128_CCE_IDLE, r128_cce_idle, DRM_AUTH),
1667         DRM_IOCTL_DEF(DRM_R128_RESET, r128_engine_reset, DRM_AUTH),
1668         DRM_IOCTL_DEF(DRM_R128_FULLSCREEN, r128_fullscreen, DRM_AUTH),
1669         DRM_IOCTL_DEF(DRM_R128_SWAP, r128_cce_swap, DRM_AUTH),
1670         DRM_IOCTL_DEF(DRM_R128_FLIP, r128_cce_flip, DRM_AUTH),
1671         DRM_IOCTL_DEF(DRM_R128_CLEAR, r128_cce_clear, DRM_AUTH),
1672         DRM_IOCTL_DEF(DRM_R128_VERTEX, r128_cce_vertex, DRM_AUTH),
1673         DRM_IOCTL_DEF(DRM_R128_INDICES, r128_cce_indices, DRM_AUTH),
1674         DRM_IOCTL_DEF(DRM_R128_BLIT, r128_cce_blit, DRM_AUTH),
1675         DRM_IOCTL_DEF(DRM_R128_DEPTH, r128_cce_depth, DRM_AUTH),
1676         DRM_IOCTL_DEF(DRM_R128_STIPPLE, r128_cce_stipple, DRM_AUTH),
1677         DRM_IOCTL_DEF(DRM_R128_INDIRECT, r128_cce_indirect, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1678         DRM_IOCTL_DEF(DRM_R128_GETPARAM, r128_getparam, DRM_AUTH),
1679 };
1680
1681 int r128_max_ioctl = DRM_ARRAY_SIZE(r128_ioctls);