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   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("    %s\n", __FUNCTION__);
  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("    %s\n", __FUNCTION__);
  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("    %s\n", __FUNCTION__);
 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("    %s\n", __FUNCTION__);
 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("    %s\n", __FUNCTION__);
 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("    %s\n", __FUNCTION__);
 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("    %s\n", __FUNCTION__);
 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("    %s\n", __FUNCTION__);
 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("%s: dirty=0x%08x\n", __FUNCTION__, 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("%s\n", __FUNCTION__);
 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("%s\n", __FUNCTION__);
 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("%s: page=%d pfCurrentPage=%d\n",
 532                   __FUNCTION__,
 533                   dev_priv->current_page, dev_priv->sarea_priv->pfCurrentPage);
 534
 535 #if R128_PERFORMANCE_BOXES
 536         /* Do some trivial performance monitoring...
 537          */
 538         r128_cce_performance_boxes(dev_priv);
 539 #endif
 540
 541         BEGIN_RING(4);
 542
 543         R128_WAIT_UNTIL_PAGE_FLIPPED();
 544         OUT_RING(CCE_PACKET0(R128_CRTC_OFFSET, 0));
 545
 546         if (dev_priv->current_page == 0) {
 547                 OUT_RING(dev_priv->back_offset);
 548         } else {
 549                 OUT_RING(dev_priv->front_offset);
 550         }
 551
 552         ADVANCE_RING();
 553
 554         /* Increment the frame counter.  The client-side 3D driver must
 555          * throttle the framerate by waiting for this value before
 556          * performing the swapbuffer ioctl.
 557          */
 558         dev_priv->sarea_priv->last_frame++;
 559         dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page =
 560             1 - dev_priv->current_page;
 561
 562         BEGIN_RING(2);
 563
 564         OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
 565         OUT_RING(dev_priv->sarea_priv->last_frame);
 566
 567         ADVANCE_RING();
 568 }
 569
 570 static void r128_cce_dispatch_vertex(struct drm_device * dev, struct drm_buf * buf)
 571 {
 572         drm_r128_private_t *dev_priv = dev->dev_private;
 573         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 574         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 575         int format = sarea_priv->vc_format;
 576         int offset = buf->bus_address;
 577         int size = buf->used;
 578         int prim = buf_priv->prim;
 579         int i = 0;
 580         RING_LOCALS;
 581         DRM_DEBUG("buf=%d nbox=%d\n", buf->idx, sarea_priv->nbox);
 582
 583         if (0)
 584                 r128_print_dirty("dispatch_vertex", sarea_priv->dirty);
 585
 586         if (buf->used) {
 587                 buf_priv->dispatched = 1;
 588
 589                 if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS) {
 590                         r128_emit_state(dev_priv);
 591                 }
 592
 593                 do {
 594                         /* Emit the next set of up to three cliprects */
 595                         if (i < sarea_priv->nbox) {
 596                                 r128_emit_clip_rects(dev_priv,
 597                                                      &sarea_priv->boxes[i],
 598                                                      sarea_priv->nbox - i);
 599                         }
 600
 601                         /* Emit the vertex buffer rendering commands */
 602                         BEGIN_RING(5);
 603
 604                         OUT_RING(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM, 3));
 605                         OUT_RING(offset);
 606                         OUT_RING(size);
 607                         OUT_RING(format);
 608                         OUT_RING(prim | R128_CCE_VC_CNTL_PRIM_WALK_LIST |
 609                                  (size << R128_CCE_VC_CNTL_NUM_SHIFT));
 610
 611                         ADVANCE_RING();
 612
 613                         i += 3;
 614                 } while (i < sarea_priv->nbox);
 615         }
 616
 617         if (buf_priv->discard) {
 618                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 619
 620                 /* Emit the vertex buffer age */
 621                 BEGIN_RING(2);
 622
 623                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 624                 OUT_RING(buf_priv->age);
 625
 626                 ADVANCE_RING();
 627
 628                 buf->pending = 1;
 629                 buf->used = 0;
 630                 /* FIXME: Check dispatched field */
 631                 buf_priv->dispatched = 0;
 632         }
 633
 634         dev_priv->sarea_priv->last_dispatch++;
 635
 636         sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
 637         sarea_priv->nbox = 0;
 638 }
 639
 640 static void r128_cce_dispatch_indirect(struct drm_device * dev,
 641                                        struct drm_buf * buf, int start, int end)
 642 {
 643         drm_r128_private_t *dev_priv = dev->dev_private;
 644         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 645         RING_LOCALS;
 646         DRM_DEBUG("indirect: buf=%d s=0x%x e=0x%x\n", buf->idx, start, end);
 647
 648         if (start != end) {
 649                 int offset = buf->bus_address + start;
 650                 int dwords = (end - start + 3) / sizeof(u32);
 651
 652                 /* Indirect buffer data must be an even number of
 653                  * dwords, so if we've been given an odd number we must
 654                  * pad the data with a Type-2 CCE packet.
 655                  */
 656                 if (dwords & 1) {
 657                         u32 *data = (u32 *)
 658                             ((char *)dev->agp_buffer_map->handle
 659                              + buf->offset + start);
 660                         data[dwords++] = cpu_to_le32(R128_CCE_PACKET2);
 661                 }
 662
 663                 buf_priv->dispatched = 1;
 664
 665                 /* Fire off the indirect buffer */
 666                 BEGIN_RING(3);
 667
 668                 OUT_RING(CCE_PACKET0(R128_PM4_IW_INDOFF, 1));
 669                 OUT_RING(offset);
 670                 OUT_RING(dwords);
 671
 672                 ADVANCE_RING();
 673         }
 674
 675         if (buf_priv->discard) {
 676                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 677
 678                 /* Emit the indirect buffer age */
 679                 BEGIN_RING(2);
 680
 681                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 682                 OUT_RING(buf_priv->age);
 683
 684                 ADVANCE_RING();
 685
 686                 buf->pending = 1;
 687                 buf->used = 0;
 688                 /* FIXME: Check dispatched field */
 689                 buf_priv->dispatched = 0;
 690         }
 691
 692         dev_priv->sarea_priv->last_dispatch++;
 693 }
 694
 695 static void r128_cce_dispatch_indices(struct drm_device * dev,
 696                                       struct drm_buf * buf,
 697                                       int start, int end, int count)
 698 {
 699         drm_r128_private_t *dev_priv = dev->dev_private;
 700         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 701         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 702         int format = sarea_priv->vc_format;
 703         int offset = dev->agp_buffer_map->offset - dev_priv->cce_buffers_offset;
 704         int prim = buf_priv->prim;
 705         u32 *data;
 706         int dwords;
 707         int i = 0;
 708         RING_LOCALS;
 709         DRM_DEBUG("indices: s=%d e=%d c=%d\n", start, end, count);
 710
 711         if (0)
 712                 r128_print_dirty("dispatch_indices", sarea_priv->dirty);
 713
 714         if (start != end) {
 715                 buf_priv->dispatched = 1;
 716
 717                 if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS) {
 718                         r128_emit_state(dev_priv);
 719                 }
 720
 721                 dwords = (end - start + 3) / sizeof(u32);
 722
 723                 data = (u32 *) ((char *)dev->agp_buffer_map->handle
 724                                 + buf->offset + start);
 725
 726                 data[0] = cpu_to_le32(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM,
 727                                                   dwords - 2));
 728
 729                 data[1] = cpu_to_le32(offset);
 730                 data[2] = cpu_to_le32(R128_MAX_VB_VERTS);
 731                 data[3] = cpu_to_le32(format);
 732                 data[4] = cpu_to_le32((prim | R128_CCE_VC_CNTL_PRIM_WALK_IND |
 733                                        (count << 16)));
 734
 735                 if (count & 0x1) {
 736 #ifdef __LITTLE_ENDIAN
 737                         data[dwords - 1] &= 0x0000ffff;
 738 #else
 739                         data[dwords - 1] &= 0xffff0000;
 740 #endif
 741                 }
 742
 743                 do {
 744                         /* Emit the next set of up to three cliprects */
 745                         if (i < sarea_priv->nbox) {
 746                                 r128_emit_clip_rects(dev_priv,
 747                                                      &sarea_priv->boxes[i],
 748                                                      sarea_priv->nbox - i);
 749                         }
 750
 751                         r128_cce_dispatch_indirect(dev, buf, start, end);
 752
 753                         i += 3;
 754                 } while (i < sarea_priv->nbox);
 755         }
 756
 757         if (buf_priv->discard) {
 758                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 759
 760                 /* Emit the vertex buffer age */
 761                 BEGIN_RING(2);
 762
 763                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 764                 OUT_RING(buf_priv->age);
 765
 766                 ADVANCE_RING();
 767
 768                 buf->pending = 1;
 769                 /* FIXME: Check dispatched field */
 770                 buf_priv->dispatched = 0;
 771         }
 772
 773         dev_priv->sarea_priv->last_dispatch++;
 774
 775         sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
 776         sarea_priv->nbox = 0;
 777 }
 778
 779 static int r128_cce_dispatch_blit(struct drm_device * dev,
 780                                   struct drm_file *file_priv,
 781                                   drm_r128_blit_t * blit)
 782 {
 783         drm_r128_private_t *dev_priv = dev->dev_private;
 784         struct drm_device_dma *dma = dev->dma;
 785         struct drm_buf *buf;
 786         drm_r128_buf_priv_t *buf_priv;
 787         u32 *data;
 788         int dword_shift, dwords;
 789         RING_LOCALS;
 790         DRM_DEBUG("\n");
 791
 792         /* The compiler won't optimize away a division by a variable,
 793          * even if the only legal values are powers of two.  Thus, we'll
 794          * use a shift instead.
 795          */
 796         switch (blit->format) {
 797         case R128_DATATYPE_ARGB8888:
 798                 dword_shift = 0;
 799                 break;
 800         case R128_DATATYPE_ARGB1555:
 801         case R128_DATATYPE_RGB565:
 802         case R128_DATATYPE_ARGB4444:
 803         case R128_DATATYPE_YVYU422:
 804         case R128_DATATYPE_VYUY422:
 805                 dword_shift = 1;
 806                 break;
 807         case R128_DATATYPE_CI8:
 808         case R128_DATATYPE_RGB8:
 809                 dword_shift = 2;
 810                 break;
 811         default:
 812                 DRM_ERROR("invalid blit format %d\n", blit->format);
 813                 return -EINVAL;
 814         }
 815
 816         /* Flush the pixel cache, and mark the contents as Read Invalid.
 817          * This ensures no pixel data gets mixed up with the texture
 818          * data from the host data blit, otherwise part of the texture
 819          * image may be corrupted.
 820          */
 821         BEGIN_RING(2);
 822
 823         OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
 824         OUT_RING(R128_PC_RI_GUI | R128_PC_FLUSH_GUI);
 825
 826         ADVANCE_RING();
 827
 828         /* Dispatch the indirect buffer.
 829          */
 830         buf = dma->buflist[blit->idx];
 831         buf_priv = buf->dev_private;
 832
 833         if (buf->file_priv != file_priv) {
 834                 DRM_ERROR("process %d using buffer owned by %p\n",
 835                           DRM_CURRENTPID, buf->file_priv);
 836                 return -EINVAL;
 837         }
 838         if (buf->pending) {
 839                 DRM_ERROR("sending pending buffer %d\n", blit->idx);
 840                 return -EINVAL;
 841         }
 842
 843         buf_priv->discard = 1;
 844
 845         dwords = (blit->width * blit->height) >> dword_shift;
 846
 847         data = (u32 *) ((char *)dev->agp_buffer_map->handle + buf->offset);
 848
 849         data[0] = cpu_to_le32(CCE_PACKET3(R128_CNTL_HOSTDATA_BLT, dwords + 6));
 850         data[1] = cpu_to_le32((R128_GMC_DST_PITCH_OFFSET_CNTL |
 851                                R128_GMC_BRUSH_NONE |
 852                                (blit->format << 8) |
 853                                R128_GMC_SRC_DATATYPE_COLOR |
 854                                R128_ROP3_S |
 855                                R128_DP_SRC_SOURCE_HOST_DATA |
 856                                R128_GMC_CLR_CMP_CNTL_DIS |
 857                                R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS));
 858
 859         data[2] = cpu_to_le32((blit->pitch << 21) | (blit->offset >> 5));
 860         data[3] = cpu_to_le32(0xffffffff);
 861         data[4] = cpu_to_le32(0xffffffff);
 862         data[5] = cpu_to_le32((blit->y << 16) | blit->x);
 863         data[6] = cpu_to_le32((blit->height << 16) | blit->width);
 864         data[7] = cpu_to_le32(dwords);
 865
 866         buf->used = (dwords + 8) * sizeof(u32);
 867
 868         r128_cce_dispatch_indirect(dev, buf, 0, buf->used);
 869
 870         /* Flush the pixel cache after the blit completes.  This ensures
 871          * the texture data is written out to memory before rendering
 872          * continues.
 873          */
 874         BEGIN_RING(2);
 875
 876         OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
 877         OUT_RING(R128_PC_FLUSH_GUI);
 878
 879         ADVANCE_RING();
 880
 881         return 0;
 882 }
 883
 884 /* ================================================================
 885  * Tiled depth buffer management
 886  *
 887  * FIXME: These should all set the destination write mask for when we
 888  * have hardware stencil support.
 889  */
 890
 891 static int r128_cce_dispatch_write_span(struct drm_device * dev,
 892                                         drm_r128_depth_t * depth)
 893 {
 894         drm_r128_private_t *dev_priv = dev->dev_private;
 895         int count, x, y;
 896         u32 *buffer;
 897         u8 *mask;
 898         int i, buffer_size, mask_size;
 899         RING_LOCALS;
 900         DRM_DEBUG("\n");
 901
 902         count = depth->n;
 903         if (count > 4096 || count <= 0)
 904                 return -EMSGSIZE;
 905
 906         if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) {
 907                 return -EFAULT;
 908         }
 909         if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) {
 910                 return -EFAULT;
 911         }
 912
 913         buffer_size = depth->n * sizeof(u32);
 914         buffer = drm_alloc(buffer_size, DRM_MEM_BUFS);
 915         if (buffer == NULL)
 916                 return -ENOMEM;
 917         if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) {
 918                 drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 919                 return -EFAULT;
 920         }
 921
 922         mask_size = depth->n * sizeof(u8);
 923         if (depth->mask) {
 924                 mask = drm_alloc(mask_size, DRM_MEM_BUFS);
 925                 if (mask == NULL) {
 926                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 927                         return -ENOMEM;
 928                 }
 929                 if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) {
 930                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 931                         drm_free(mask, mask_size, DRM_MEM_BUFS);
 932                         return -EFAULT;
 933                 }
 934
 935                 for (i = 0; i < count; i++, x++) {
 936                         if (mask[i]) {
 937                                 BEGIN_RING(6);
 938
 939                                 OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 940                                 OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 941                                          R128_GMC_BRUSH_SOLID_COLOR |
 942                                          (dev_priv->depth_fmt << 8) |
 943                                          R128_GMC_SRC_DATATYPE_COLOR |
 944                                          R128_ROP3_P |
 945                                          R128_GMC_CLR_CMP_CNTL_DIS |
 946                                          R128_GMC_WR_MSK_DIS);
 947
 948                                 OUT_RING(dev_priv->depth_pitch_offset_c);
 949                                 OUT_RING(buffer[i]);
 950
 951                                 OUT_RING((x << 16) | y);
 952                                 OUT_RING((1 << 16) | 1);
 953
 954                                 ADVANCE_RING();
 955                         }
 956                 }
 957
 958                 drm_free(mask, mask_size, DRM_MEM_BUFS);
 959         } else {
 960                 for (i = 0; i < count; i++, x++) {
 961                         BEGIN_RING(6);
 962
 963                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 964                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 965                                  R128_GMC_BRUSH_SOLID_COLOR |
 966                                  (dev_priv->depth_fmt << 8) |
 967                                  R128_GMC_SRC_DATATYPE_COLOR |
 968                                  R128_ROP3_P |
 969                                  R128_GMC_CLR_CMP_CNTL_DIS |
 970                                  R128_GMC_WR_MSK_DIS);
 971
 972                         OUT_RING(dev_priv->depth_pitch_offset_c);
 973                         OUT_RING(buffer[i]);
 974
 975                         OUT_RING((x << 16) | y);
 976                         OUT_RING((1 << 16) | 1);
 977
 978                         ADVANCE_RING();
 979                 }
 980         }
 981
 982         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
 983
 984         return 0;
 985 }
 986
 987 static int r128_cce_dispatch_write_pixels(struct drm_device * dev,
 988                                           drm_r128_depth_t * depth)
 989 {
 990         drm_r128_private_t *dev_priv = dev->dev_private;
 991         int count, *x, *y;
 992         u32 *buffer;
 993         u8 *mask;
 994         int i, xbuf_size, ybuf_size, buffer_size, mask_size;
 995         RING_LOCALS;
 996         DRM_DEBUG("\n");
 997
 998         count = depth->n;
 999         if (count > 4096 || count <= 0)
1000                 return -EMSGSIZE;
1001
1002         xbuf_size = count * sizeof(*x);
1003         ybuf_size = count * sizeof(*y);
1004         x = drm_alloc(xbuf_size, DRM_MEM_BUFS);
1005         if (x == NULL) {
1006                 return -ENOMEM;
1007         }
1008         y = drm_alloc(ybuf_size, DRM_MEM_BUFS);
1009         if (y == NULL) {
1010                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1011                 return -ENOMEM;
1012         }
1013         if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) {
1014                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1015                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1016                 return -EFAULT;
1017         }
1018         if (DRM_COPY_FROM_USER(y, depth->y, xbuf_size)) {
1019                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1020                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1021                 return -EFAULT;
1022         }
1023
1024         buffer_size = depth->n * sizeof(u32);
1025         buffer = drm_alloc(buffer_size, DRM_MEM_BUFS);
1026         if (buffer == NULL) {
1027                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1028                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1029                 return -ENOMEM;
1030         }
1031         if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) {
1032                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1033                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1034                 drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1035                 return -EFAULT;
1036         }
1037
1038         if (depth->mask) {
1039                 mask_size = depth->n * sizeof(u8);
1040                 mask = drm_alloc(mask_size, DRM_MEM_BUFS);
1041                 if (mask == NULL) {
1042                         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1043                         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1044                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1045                         return -ENOMEM;
1046                 }
1047                 if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) {
1048                         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1049                         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1050                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1051                         drm_free(mask, mask_size, DRM_MEM_BUFS);
1052                         return -EFAULT;
1053                 }
1054
1055                 for (i = 0; i < count; i++) {
1056                         if (mask[i]) {
1057                                 BEGIN_RING(6);
1058
1059                                 OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1060                                 OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1061                                          R128_GMC_BRUSH_SOLID_COLOR |
1062                                          (dev_priv->depth_fmt << 8) |
1063                                          R128_GMC_SRC_DATATYPE_COLOR |
1064                                          R128_ROP3_P |
1065                                          R128_GMC_CLR_CMP_CNTL_DIS |
1066                                          R128_GMC_WR_MSK_DIS);
1067
1068                                 OUT_RING(dev_priv->depth_pitch_offset_c);
1069                                 OUT_RING(buffer[i]);
1070
1071                                 OUT_RING((x[i] << 16) | y[i]);
1072                                 OUT_RING((1 << 16) | 1);
1073
1074                                 ADVANCE_RING();
1075                         }
1076                 }
1077
1078                 drm_free(mask, mask_size, DRM_MEM_BUFS);
1079         } else {
1080                 for (i = 0; i < count; i++) {
1081                         BEGIN_RING(6);
1082
1083                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1084                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1085                                  R128_GMC_BRUSH_SOLID_COLOR |
1086                                  (dev_priv->depth_fmt << 8) |
1087                                  R128_GMC_SRC_DATATYPE_COLOR |
1088                                  R128_ROP3_P |
1089                                  R128_GMC_CLR_CMP_CNTL_DIS |
1090                                  R128_GMC_WR_MSK_DIS);
1091
1092                         OUT_RING(dev_priv->depth_pitch_offset_c);
1093                         OUT_RING(buffer[i]);
1094
1095                         OUT_RING((x[i] << 16) | y[i]);
1096                         OUT_RING((1 << 16) | 1);
1097
1098                         ADVANCE_RING();
1099                 }
1100         }
1101
1102         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1103         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1104         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1105
1106         return 0;
1107 }
1108
1109 static int r128_cce_dispatch_read_span(struct drm_device * dev,
1110                                        drm_r128_depth_t * depth)
1111 {
1112         drm_r128_private_t *dev_priv = dev->dev_private;
1113         int count, x, y;
1114         RING_LOCALS;
1115         DRM_DEBUG("\n");
1116
1117         count = depth->n;
1118         if (count > 4096 || count <= 0)
1119                 return -EMSGSIZE;
1120
1121         if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) {
1122                 return -EFAULT;
1123         }
1124         if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) {
1125                 return -EFAULT;
1126         }
1127
1128         BEGIN_RING(7);
1129
1130         OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1131         OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1132                  R128_GMC_DST_PITCH_OFFSET_CNTL |
1133                  R128_GMC_BRUSH_NONE |
1134                  (dev_priv->depth_fmt << 8) |
1135                  R128_GMC_SRC_DATATYPE_COLOR |
1136                  R128_ROP3_S |
1137                  R128_DP_SRC_SOURCE_MEMORY |
1138                  R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1139
1140         OUT_RING(dev_priv->depth_pitch_offset_c);
1141         OUT_RING(dev_priv->span_pitch_offset_c);
1142
1143         OUT_RING((x << 16) | y);
1144         OUT_RING((0 << 16) | 0);
1145         OUT_RING((count << 16) | 1);
1146
1147         ADVANCE_RING();
1148
1149         return 0;
1150 }
1151
1152 static int r128_cce_dispatch_read_pixels(struct drm_device * dev,
1153                                          drm_r128_depth_t * depth)
1154 {
1155         drm_r128_private_t *dev_priv = dev->dev_private;
1156         int count, *x, *y;
1157         int i, xbuf_size, ybuf_size;
1158         RING_LOCALS;
1159         DRM_DEBUG("%s\n", __FUNCTION__);
1160
1161         count = depth->n;
1162         if (count > 4096 || count <= 0)
1163                 return -EMSGSIZE;
1164
1165         if (count > dev_priv->depth_pitch) {
1166                 count = dev_priv->depth_pitch;
1167         }
1168
1169         xbuf_size = count * sizeof(*x);
1170         ybuf_size = count * sizeof(*y);
1171         x = drm_alloc(xbuf_size, DRM_MEM_BUFS);
1172         if (x == NULL) {
1173                 return -ENOMEM;
1174         }
1175         y = drm_alloc(ybuf_size, DRM_MEM_BUFS);
1176         if (y == NULL) {
1177                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1178                 return -ENOMEM;
1179         }
1180         if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) {
1181                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1182                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1183                 return -EFAULT;
1184         }
1185         if (DRM_COPY_FROM_USER(y, depth->y, ybuf_size)) {
1186                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1187                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1188                 return -EFAULT;
1189         }
1190
1191         for (i = 0; i < count; i++) {
1192                 BEGIN_RING(7);
1193
1194                 OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1195                 OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1196                          R128_GMC_DST_PITCH_OFFSET_CNTL |
1197                          R128_GMC_BRUSH_NONE |
1198                          (dev_priv->depth_fmt << 8) |
1199                          R128_GMC_SRC_DATATYPE_COLOR |
1200                          R128_ROP3_S |
1201                          R128_DP_SRC_SOURCE_MEMORY |
1202                          R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1203
1204                 OUT_RING(dev_priv->depth_pitch_offset_c);
1205                 OUT_RING(dev_priv->span_pitch_offset_c);
1206
1207                 OUT_RING((x[i] << 16) | y[i]);
1208                 OUT_RING((i << 16) | 0);
1209                 OUT_RING((1 << 16) | 1);
1210
1211                 ADVANCE_RING();
1212         }
1213
1214         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1215         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1216
1217         return 0;
1218 }
1219
1220 /* ================================================================
1221  * Polygon stipple
1222  */
1223
1224 static void r128_cce_dispatch_stipple(struct drm_device * dev, u32 * stipple)
1225 {
1226         drm_r128_private_t *dev_priv = dev->dev_private;
1227         int i;
1228         RING_LOCALS;
1229         DRM_DEBUG("%s\n", __FUNCTION__);
1230
1231         BEGIN_RING(33);
1232
1233         OUT_RING(CCE_PACKET0(R128_BRUSH_DATA0, 31));
1234         for (i = 0; i < 32; i++) {
1235                 OUT_RING(stipple[i]);
1236         }
1237
1238         ADVANCE_RING();
1239 }
1240
1241 /* ================================================================
1242  * IOCTL functions
1243  */
1244
1245 static int r128_cce_clear(struct drm_device *dev, void *data, struct drm_file *file_priv)
1246 {
1247         drm_r128_private_t *dev_priv = dev->dev_private;
1248         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1249         drm_r128_clear_t *clear = data;
1250         DRM_DEBUG("\n");
1251
1252         LOCK_TEST_WITH_RETURN(dev, file_priv);
1253
1254         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1255
1256         if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1257                 sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1258
1259         r128_cce_dispatch_clear(dev, clear);
1260         COMMIT_RING();
1261
1262         /* Make sure we restore the 3D state next time.
1263          */
1264         dev_priv->sarea_priv->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
1265
1266         return 0;
1267 }
1268
1269 static int r128_do_init_pageflip(struct drm_device * dev)
1270 {
1271         drm_r128_private_t *dev_priv = dev->dev_private;
1272         DRM_DEBUG("\n");
1273
1274         dev_priv->crtc_offset = R128_READ(R128_CRTC_OFFSET);
1275         dev_priv->crtc_offset_cntl = R128_READ(R128_CRTC_OFFSET_CNTL);
1276
1277         R128_WRITE(R128_CRTC_OFFSET, dev_priv->front_offset);
1278         R128_WRITE(R128_CRTC_OFFSET_CNTL,
1279                    dev_priv->crtc_offset_cntl | R128_CRTC_OFFSET_FLIP_CNTL);
1280
1281         dev_priv->page_flipping = 1;
1282         dev_priv->current_page = 0;
1283         dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page;
1284
1285         return 0;
1286 }
1287
1288 static int r128_do_cleanup_pageflip(struct drm_device * dev)
1289 {
1290         drm_r128_private_t *dev_priv = dev->dev_private;
1291         DRM_DEBUG("\n");
1292
1293         R128_WRITE(R128_CRTC_OFFSET, dev_priv->crtc_offset);
1294         R128_WRITE(R128_CRTC_OFFSET_CNTL, dev_priv->crtc_offset_cntl);
1295
1296         if (dev_priv->current_page != 0) {
1297                 r128_cce_dispatch_flip(dev);
1298                 COMMIT_RING();
1299         }
1300
1301         dev_priv->page_flipping = 0;
1302         return 0;
1303 }
1304
1305 /* Swapping and flipping are different operations, need different ioctls.
1306  * They can & should be intermixed to support multiple 3d windows.
1307  */
1308
1309 static int r128_cce_flip(struct drm_device *dev, void *data, struct drm_file *file_priv)
1310 {
1311         drm_r128_private_t *dev_priv = dev->dev_private;
1312         DRM_DEBUG("%s\n", __FUNCTION__);
1313
1314         LOCK_TEST_WITH_RETURN(dev, file_priv);
1315
1316         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1317
1318         if (!dev_priv->page_flipping)
1319                 r128_do_init_pageflip(dev);
1320
1321         r128_cce_dispatch_flip(dev);
1322
1323         COMMIT_RING();
1324         return 0;
1325 }
1326
1327 static int r128_cce_swap(struct drm_device *dev, void *data, struct drm_file *file_priv)
1328 {
1329         drm_r128_private_t *dev_priv = dev->dev_private;
1330         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1331         DRM_DEBUG("%s\n", __FUNCTION__);
1332
1333         LOCK_TEST_WITH_RETURN(dev, file_priv);
1334
1335         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1336
1337         if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1338                 sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1339
1340         r128_cce_dispatch_swap(dev);
1341         dev_priv->sarea_priv->dirty |= (R128_UPLOAD_CONTEXT |
1342                                         R128_UPLOAD_MASKS);
1343
1344         COMMIT_RING();
1345         return 0;
1346 }
1347
1348 static int r128_cce_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv)
1349 {
1350         drm_r128_private_t *dev_priv = dev->dev_private;
1351         struct drm_device_dma *dma = dev->dma;
1352         struct drm_buf *buf;
1353         drm_r128_buf_priv_t *buf_priv;
1354         drm_r128_vertex_t *vertex = data;
1355
1356         LOCK_TEST_WITH_RETURN(dev, file_priv);
1357
1358         if (!dev_priv) {
1359                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1360                 return -EINVAL;
1361         }
1362
1363         DRM_DEBUG("pid=%d index=%d count=%d discard=%d\n",
1364                   DRM_CURRENTPID, vertex->idx, vertex->count, vertex->discard);
1365
1366         if (vertex->idx < 0 || vertex->idx >= dma->buf_count) {
1367                 DRM_ERROR("buffer index %d (of %d max)\n",
1368                           vertex->idx, dma->buf_count - 1);
1369                 return -EINVAL;
1370         }
1371         if (vertex->prim < 0 ||
1372             vertex->prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1373                 DRM_ERROR("buffer prim %d\n", vertex->prim);
1374                 return -EINVAL;
1375         }
1376
1377         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1378         VB_AGE_TEST_WITH_RETURN(dev_priv);
1379
1380         buf = dma->buflist[vertex->idx];
1381         buf_priv = buf->dev_private;
1382
1383         if (buf->file_priv != file_priv) {
1384                 DRM_ERROR("process %d using buffer owned by %p\n",
1385                           DRM_CURRENTPID, buf->file_priv);
1386                 return -EINVAL;
1387         }
1388         if (buf->pending) {
1389                 DRM_ERROR("sending pending buffer %d\n", vertex->idx);
1390                 return -EINVAL;
1391         }
1392
1393         buf->used = vertex->count;
1394         buf_priv->prim = vertex->prim;
1395         buf_priv->discard = vertex->discard;
1396
1397         r128_cce_dispatch_vertex(dev, buf);
1398
1399         COMMIT_RING();
1400         return 0;
1401 }
1402
1403 static int r128_cce_indices(struct drm_device *dev, void *data, struct drm_file *file_priv)
1404 {
1405         drm_r128_private_t *dev_priv = dev->dev_private;
1406         struct drm_device_dma *dma = dev->dma;
1407         struct drm_buf *buf;
1408         drm_r128_buf_priv_t *buf_priv;
1409         drm_r128_indices_t *elts = data;
1410         int count;
1411
1412         LOCK_TEST_WITH_RETURN(dev, file_priv);
1413
1414         if (!dev_priv) {
1415                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1416                 return -EINVAL;
1417         }
1418
1419         DRM_DEBUG("pid=%d buf=%d s=%d e=%d d=%d\n", DRM_CURRENTPID,
1420                   elts->idx, elts->start, elts->end, elts->discard);
1421
1422         if (elts->idx < 0 || elts->idx >= dma->buf_count) {
1423                 DRM_ERROR("buffer index %d (of %d max)\n",
1424                           elts->idx, dma->buf_count - 1);
1425                 return -EINVAL;
1426         }
1427         if (elts->prim < 0 ||
1428             elts->prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1429                 DRM_ERROR("buffer prim %d\n", elts->prim);
1430                 return -EINVAL;
1431         }
1432
1433         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1434         VB_AGE_TEST_WITH_RETURN(dev_priv);
1435
1436         buf = dma->buflist[elts->idx];
1437         buf_priv = buf->dev_private;
1438
1439         if (buf->file_priv != file_priv) {
1440                 DRM_ERROR("process %d using buffer owned by %p\n",
1441                           DRM_CURRENTPID, buf->file_priv);
1442                 return -EINVAL;
1443         }
1444         if (buf->pending) {
1445                 DRM_ERROR("sending pending buffer %d\n", elts->idx);
1446                 return -EINVAL;
1447         }
1448
1449         count = (elts->end - elts->start) / sizeof(u16);
1450         elts->start -= R128_INDEX_PRIM_OFFSET;
1451
1452         if (elts->start & 0x7) {
1453                 DRM_ERROR("misaligned buffer 0x%x\n", elts->start);
1454                 return -EINVAL;
1455         }
1456         if (elts->start < buf->used) {
1457                 DRM_ERROR("no header 0x%x - 0x%x\n", elts->start, buf->used);
1458                 return -EINVAL;
1459         }
1460
1461         buf->used = elts->end;
1462         buf_priv->prim = elts->prim;
1463         buf_priv->discard = elts->discard;
1464
1465         r128_cce_dispatch_indices(dev, buf, elts->start, elts->end, count);
1466
1467         COMMIT_RING();
1468         return 0;
1469 }
1470
1471 static int r128_cce_blit(struct drm_device *dev, void *data, struct drm_file *file_priv)
1472 {
1473         struct drm_device_dma *dma = dev->dma;
1474         drm_r128_private_t *dev_priv = dev->dev_private;
1475         drm_r128_blit_t *blit = data;
1476         int ret;
1477
1478         LOCK_TEST_WITH_RETURN(dev, file_priv);
1479
1480         DRM_DEBUG("pid=%d index=%d\n", DRM_CURRENTPID, blit->idx);
1481
1482         if (blit->idx < 0 || blit->idx >= dma->buf_count) {
1483                 DRM_ERROR("buffer index %d (of %d max)\n",
1484                           blit->idx, dma->buf_count - 1);
1485                 return -EINVAL;
1486         }
1487
1488         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1489         VB_AGE_TEST_WITH_RETURN(dev_priv);
1490
1491         ret = r128_cce_dispatch_blit(dev, file_priv, blit);
1492
1493         COMMIT_RING();
1494         return ret;
1495 }
1496
1497 static int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv)
1498 {
1499         drm_r128_private_t *dev_priv = dev->dev_private;
1500         drm_r128_depth_t *depth = data;
1501         int ret;
1502
1503         LOCK_TEST_WITH_RETURN(dev, file_priv);
1504
1505         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1506
1507         ret = -EINVAL;
1508         switch (depth->func) {
1509         case R128_WRITE_SPAN:
1510                 ret = r128_cce_dispatch_write_span(dev, depth);
1511                 break;
1512         case R128_WRITE_PIXELS:
1513                 ret = r128_cce_dispatch_write_pixels(dev, depth);
1514                 break;
1515         case R128_READ_SPAN:
1516                 ret = r128_cce_dispatch_read_span(dev, depth);
1517                 break;
1518         case R128_READ_PIXELS:
1519                 ret = r128_cce_dispatch_read_pixels(dev, depth);
1520                 break;
1521         }
1522
1523         COMMIT_RING();
1524         return ret;
1525 }
1526
1527 static int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv)
1528 {
1529         drm_r128_private_t *dev_priv = dev->dev_private;
1530         drm_r128_stipple_t *stipple = data;
1531         u32 mask[32];
1532
1533         LOCK_TEST_WITH_RETURN(dev, file_priv);
1534
1535         if (DRM_COPY_FROM_USER(&mask, stipple->mask, 32 * sizeof(u32)))
1536                 return -EFAULT;
1537
1538         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1539
1540         r128_cce_dispatch_stipple(dev, mask);
1541
1542         COMMIT_RING();
1543         return 0;
1544 }
1545
1546 static int r128_cce_indirect(struct drm_device *dev, void *data, struct drm_file *file_priv)
1547 {
1548         drm_r128_private_t *dev_priv = dev->dev_private;
1549         struct drm_device_dma *dma = dev->dma;
1550         struct drm_buf *buf;
1551         drm_r128_buf_priv_t *buf_priv;
1552         drm_r128_indirect_t *indirect = data;
1553 #if 0
1554         RING_LOCALS;
1555 #endif
1556
1557         LOCK_TEST_WITH_RETURN(dev, file_priv);
1558
1559         if (!dev_priv) {
1560                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1561                 return -EINVAL;
1562         }
1563
1564         DRM_DEBUG("indirect: idx=%d s=%d e=%d d=%d\n",
1565                   indirect->idx, indirect->start, indirect->end,
1566                   indirect->discard);
1567
1568         if (indirect->idx < 0 || indirect->idx >= dma->buf_count) {
1569                 DRM_ERROR("buffer index %d (of %d max)\n",
1570                           indirect->idx, dma->buf_count - 1);
1571                 return -EINVAL;
1572         }
1573
1574         buf = dma->buflist[indirect->idx];
1575         buf_priv = buf->dev_private;
1576
1577         if (buf->file_priv != file_priv) {
1578                 DRM_ERROR("process %d using buffer owned by %p\n",
1579                           DRM_CURRENTPID, buf->file_priv);
1580                 return -EINVAL;
1581         }
1582         if (buf->pending) {
1583                 DRM_ERROR("sending pending buffer %d\n", indirect->idx);
1584                 return -EINVAL;
1585         }
1586
1587         if (indirect->start < buf->used) {
1588                 DRM_ERROR("reusing indirect: start=0x%x actual=0x%x\n",
1589                           indirect->start, buf->used);
1590                 return -EINVAL;
1591         }
1592
1593         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1594         VB_AGE_TEST_WITH_RETURN(dev_priv);
1595
1596         buf->used = indirect->end;
1597         buf_priv->discard = indirect->discard;
1598
1599 #if 0
1600         /* Wait for the 3D stream to idle before the indirect buffer
1601          * containing 2D acceleration commands is processed.
1602          */
1603         BEGIN_RING(2);
1604         RADEON_WAIT_UNTIL_3D_IDLE();
1605         ADVANCE_RING();
1606 #endif
1607
1608         /* Dispatch the indirect buffer full of commands from the
1609          * X server.  This is insecure and is thus only available to
1610          * privileged clients.
1611          */
1612         r128_cce_dispatch_indirect(dev, buf, indirect->start, indirect->end);
1613
1614         COMMIT_RING();
1615         return 0;
1616 }
1617
1618 static int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
1619 {
1620         drm_r128_private_t *dev_priv = dev->dev_private;
1621         drm_r128_getparam_t *param = data;
1622         int value;
1623
1624         if (!dev_priv) {
1625                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1626                 return -EINVAL;
1627         }
1628
1629         DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1630
1631         switch (param->param) {
1632         case R128_PARAM_IRQ_NR:
1633                 value = dev->irq;
1634                 break;
1635         default:
1636                 return -EINVAL;
1637         }
1638
1639         if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
1640                 DRM_ERROR("copy_to_user\n");
1641                 return -EFAULT;
1642         }
1643
1644         return 0;
1645 }
1646
1647 void r128_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1648 {
1649         if (dev->dev_private) {
1650                 drm_r128_private_t *dev_priv = dev->dev_private;
1651                 if (dev_priv->page_flipping) {
1652                         r128_do_cleanup_pageflip(dev);
1653                 }
1654         }
1655 }
1656
1657 void r128_driver_lastclose(struct drm_device * dev)
1658 {
1659         r128_do_cleanup_cce(dev);
1660 }
1661
1662 struct drm_ioctl_desc r128_ioctls[] = {
1663         DRM_IOCTL_DEF(DRM_R128_INIT, r128_cce_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1664         DRM_IOCTL_DEF(DRM_R128_CCE_START, r128_cce_start, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1665         DRM_IOCTL_DEF(DRM_R128_CCE_STOP, r128_cce_stop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1666         DRM_IOCTL_DEF(DRM_R128_CCE_RESET, r128_cce_reset, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1667         DRM_IOCTL_DEF(DRM_R128_CCE_IDLE, r128_cce_idle, DRM_AUTH),
1668         DRM_IOCTL_DEF(DRM_R128_RESET, r128_engine_reset, DRM_AUTH),
1669         DRM_IOCTL_DEF(DRM_R128_FULLSCREEN, r128_fullscreen, DRM_AUTH),
1670         DRM_IOCTL_DEF(DRM_R128_SWAP, r128_cce_swap, DRM_AUTH),
1671         DRM_IOCTL_DEF(DRM_R128_FLIP, r128_cce_flip, DRM_AUTH),
1672         DRM_IOCTL_DEF(DRM_R128_CLEAR, r128_cce_clear, DRM_AUTH),
1673         DRM_IOCTL_DEF(DRM_R128_VERTEX, r128_cce_vertex, DRM_AUTH),
1674         DRM_IOCTL_DEF(DRM_R128_INDICES, r128_cce_indices, DRM_AUTH),
1675         DRM_IOCTL_DEF(DRM_R128_BLIT, r128_cce_blit, DRM_AUTH),
1676         DRM_IOCTL_DEF(DRM_R128_DEPTH, r128_cce_depth, DRM_AUTH),
1677         DRM_IOCTL_DEF(DRM_R128_STIPPLE, r128_cce_stipple, DRM_AUTH),
1678         DRM_IOCTL_DEF(DRM_R128_INDIRECT, r128_cce_indirect, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1679         DRM_IOCTL_DEF(DRM_R128_GETPARAM, r128_getparam, DRM_AUTH),
1680 };
1681
1682 int r128_max_ioctl = DRM_ARRAY_SIZE(r128_ioctls);