linux/drivers/gpu/drm/r128/r128_state.c
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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 <drm/drmP.h>
  32#include <drm/r128_drm.h>
  33#include "r128_drv.h"
  34
  35/* ================================================================
  36 * CCE hardware state programming functions
  37 */
  38
  39static void r128_emit_clip_rects(drm_r128_private_t *dev_priv,
  40                                 struct drm_clip_rect *boxes, int count)
  41{
  42        u32 aux_sc_cntl = 0x00000000;
  43        RING_LOCALS;
  44        DRM_DEBUG("\n");
  45
  46        BEGIN_RING((count < 3 ? count : 3) * 5 + 2);
  47
  48        if (count >= 1) {
  49                OUT_RING(CCE_PACKET0(R128_AUX1_SC_LEFT, 3));
  50                OUT_RING(boxes[0].x1);
  51                OUT_RING(boxes[0].x2 - 1);
  52                OUT_RING(boxes[0].y1);
  53                OUT_RING(boxes[0].y2 - 1);
  54
  55                aux_sc_cntl |= (R128_AUX1_SC_EN | R128_AUX1_SC_MODE_OR);
  56        }
  57        if (count >= 2) {
  58                OUT_RING(CCE_PACKET0(R128_AUX2_SC_LEFT, 3));
  59                OUT_RING(boxes[1].x1);
  60                OUT_RING(boxes[1].x2 - 1);
  61                OUT_RING(boxes[1].y1);
  62                OUT_RING(boxes[1].y2 - 1);
  63
  64                aux_sc_cntl |= (R128_AUX2_SC_EN | R128_AUX2_SC_MODE_OR);
  65        }
  66        if (count >= 3) {
  67                OUT_RING(CCE_PACKET0(R128_AUX3_SC_LEFT, 3));
  68                OUT_RING(boxes[2].x1);
  69                OUT_RING(boxes[2].x2 - 1);
  70                OUT_RING(boxes[2].y1);
  71                OUT_RING(boxes[2].y2 - 1);
  72
  73                aux_sc_cntl |= (R128_AUX3_SC_EN | R128_AUX3_SC_MODE_OR);
  74        }
  75
  76        OUT_RING(CCE_PACKET0(R128_AUX_SC_CNTL, 0));
  77        OUT_RING(aux_sc_cntl);
  78
  79        ADVANCE_RING();
  80}
  81
  82static __inline__ void r128_emit_core(drm_r128_private_t *dev_priv)
  83{
  84        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
  85        drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
  86        RING_LOCALS;
  87        DRM_DEBUG("\n");
  88
  89        BEGIN_RING(2);
  90
  91        OUT_RING(CCE_PACKET0(R128_SCALE_3D_CNTL, 0));
  92        OUT_RING(ctx->scale_3d_cntl);
  93
  94        ADVANCE_RING();
  95}
  96
  97static __inline__ void r128_emit_context(drm_r128_private_t *dev_priv)
  98{
  99        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 100        drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 101        RING_LOCALS;
 102        DRM_DEBUG("\n");
 103
 104        BEGIN_RING(13);
 105
 106        OUT_RING(CCE_PACKET0(R128_DST_PITCH_OFFSET_C, 11));
 107        OUT_RING(ctx->dst_pitch_offset_c);
 108        OUT_RING(ctx->dp_gui_master_cntl_c);
 109        OUT_RING(ctx->sc_top_left_c);
 110        OUT_RING(ctx->sc_bottom_right_c);
 111        OUT_RING(ctx->z_offset_c);
 112        OUT_RING(ctx->z_pitch_c);
 113        OUT_RING(ctx->z_sten_cntl_c);
 114        OUT_RING(ctx->tex_cntl_c);
 115        OUT_RING(ctx->misc_3d_state_cntl_reg);
 116        OUT_RING(ctx->texture_clr_cmp_clr_c);
 117        OUT_RING(ctx->texture_clr_cmp_msk_c);
 118        OUT_RING(ctx->fog_color_c);
 119
 120        ADVANCE_RING();
 121}
 122
 123static __inline__ void r128_emit_setup(drm_r128_private_t *dev_priv)
 124{
 125        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 126        drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 127        RING_LOCALS;
 128        DRM_DEBUG("\n");
 129
 130        BEGIN_RING(3);
 131
 132        OUT_RING(CCE_PACKET1(R128_SETUP_CNTL, R128_PM4_VC_FPU_SETUP));
 133        OUT_RING(ctx->setup_cntl);
 134        OUT_RING(ctx->pm4_vc_fpu_setup);
 135
 136        ADVANCE_RING();
 137}
 138
 139static __inline__ void r128_emit_masks(drm_r128_private_t *dev_priv)
 140{
 141        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 142        drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 143        RING_LOCALS;
 144        DRM_DEBUG("\n");
 145
 146        BEGIN_RING(5);
 147
 148        OUT_RING(CCE_PACKET0(R128_DP_WRITE_MASK, 0));
 149        OUT_RING(ctx->dp_write_mask);
 150
 151        OUT_RING(CCE_PACKET0(R128_STEN_REF_MASK_C, 1));
 152        OUT_RING(ctx->sten_ref_mask_c);
 153        OUT_RING(ctx->plane_3d_mask_c);
 154
 155        ADVANCE_RING();
 156}
 157
 158static __inline__ void r128_emit_window(drm_r128_private_t *dev_priv)
 159{
 160        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 161        drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 162        RING_LOCALS;
 163        DRM_DEBUG("\n");
 164
 165        BEGIN_RING(2);
 166
 167        OUT_RING(CCE_PACKET0(R128_WINDOW_XY_OFFSET, 0));
 168        OUT_RING(ctx->window_xy_offset);
 169
 170        ADVANCE_RING();
 171}
 172
 173static __inline__ void r128_emit_tex0(drm_r128_private_t *dev_priv)
 174{
 175        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 176        drm_r128_context_regs_t *ctx = &sarea_priv->context_state;
 177        drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[0];
 178        int i;
 179        RING_LOCALS;
 180        DRM_DEBUG("\n");
 181
 182        BEGIN_RING(7 + R128_MAX_TEXTURE_LEVELS);
 183
 184        OUT_RING(CCE_PACKET0(R128_PRIM_TEX_CNTL_C,
 185                             2 + R128_MAX_TEXTURE_LEVELS));
 186        OUT_RING(tex->tex_cntl);
 187        OUT_RING(tex->tex_combine_cntl);
 188        OUT_RING(ctx->tex_size_pitch_c);
 189        for (i = 0; i < R128_MAX_TEXTURE_LEVELS; i++)
 190                OUT_RING(tex->tex_offset[i]);
 191
 192        OUT_RING(CCE_PACKET0(R128_CONSTANT_COLOR_C, 1));
 193        OUT_RING(ctx->constant_color_c);
 194        OUT_RING(tex->tex_border_color);
 195
 196        ADVANCE_RING();
 197}
 198
 199static __inline__ void r128_emit_tex1(drm_r128_private_t *dev_priv)
 200{
 201        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 202        drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[1];
 203        int i;
 204        RING_LOCALS;
 205        DRM_DEBUG("\n");
 206
 207        BEGIN_RING(5 + R128_MAX_TEXTURE_LEVELS);
 208
 209        OUT_RING(CCE_PACKET0(R128_SEC_TEX_CNTL_C, 1 + R128_MAX_TEXTURE_LEVELS));
 210        OUT_RING(tex->tex_cntl);
 211        OUT_RING(tex->tex_combine_cntl);
 212        for (i = 0; i < R128_MAX_TEXTURE_LEVELS; i++)
 213                OUT_RING(tex->tex_offset[i]);
 214
 215        OUT_RING(CCE_PACKET0(R128_SEC_TEXTURE_BORDER_COLOR_C, 0));
 216        OUT_RING(tex->tex_border_color);
 217
 218        ADVANCE_RING();
 219}
 220
 221static void r128_emit_state(drm_r128_private_t *dev_priv)
 222{
 223        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 224        unsigned int dirty = sarea_priv->dirty;
 225
 226        DRM_DEBUG("dirty=0x%08x\n", dirty);
 227
 228        if (dirty & R128_UPLOAD_CORE) {
 229                r128_emit_core(dev_priv);
 230                sarea_priv->dirty &= ~R128_UPLOAD_CORE;
 231        }
 232
 233        if (dirty & R128_UPLOAD_CONTEXT) {
 234                r128_emit_context(dev_priv);
 235                sarea_priv->dirty &= ~R128_UPLOAD_CONTEXT;
 236        }
 237
 238        if (dirty & R128_UPLOAD_SETUP) {
 239                r128_emit_setup(dev_priv);
 240                sarea_priv->dirty &= ~R128_UPLOAD_SETUP;
 241        }
 242
 243        if (dirty & R128_UPLOAD_MASKS) {
 244                r128_emit_masks(dev_priv);
 245                sarea_priv->dirty &= ~R128_UPLOAD_MASKS;
 246        }
 247
 248        if (dirty & R128_UPLOAD_WINDOW) {
 249                r128_emit_window(dev_priv);
 250                sarea_priv->dirty &= ~R128_UPLOAD_WINDOW;
 251        }
 252
 253        if (dirty & R128_UPLOAD_TEX0) {
 254                r128_emit_tex0(dev_priv);
 255                sarea_priv->dirty &= ~R128_UPLOAD_TEX0;
 256        }
 257
 258        if (dirty & R128_UPLOAD_TEX1) {
 259                r128_emit_tex1(dev_priv);
 260                sarea_priv->dirty &= ~R128_UPLOAD_TEX1;
 261        }
 262
 263        /* Turn off the texture cache flushing */
 264        sarea_priv->context_state.tex_cntl_c &= ~R128_TEX_CACHE_FLUSH;
 265
 266        sarea_priv->dirty &= ~R128_REQUIRE_QUIESCENCE;
 267}
 268
 269#if R128_PERFORMANCE_BOXES
 270/* ================================================================
 271 * Performance monitoring functions
 272 */
 273
 274static void r128_clear_box(drm_r128_private_t *dev_priv,
 275                           int x, int y, int w, int h, int r, int g, int b)
 276{
 277        u32 pitch, offset;
 278        u32 fb_bpp, color;
 279        RING_LOCALS;
 280
 281        switch (dev_priv->fb_bpp) {
 282        case 16:
 283                fb_bpp = R128_GMC_DST_16BPP;
 284                color = (((r & 0xf8) << 8) |
 285                         ((g & 0xfc) << 3) | ((b & 0xf8) >> 3));
 286                break;
 287        case 24:
 288                fb_bpp = R128_GMC_DST_24BPP;
 289                color = ((r << 16) | (g << 8) | b);
 290                break;
 291        case 32:
 292                fb_bpp = R128_GMC_DST_32BPP;
 293                color = (((0xff) << 24) | (r << 16) | (g << 8) | b);
 294                break;
 295        default:
 296                return;
 297        }
 298
 299        offset = dev_priv->back_offset;
 300        pitch = dev_priv->back_pitch >> 3;
 301
 302        BEGIN_RING(6);
 303
 304        OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 305        OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 306                 R128_GMC_BRUSH_SOLID_COLOR |
 307                 fb_bpp |
 308                 R128_GMC_SRC_DATATYPE_COLOR |
 309                 R128_ROP3_P |
 310                 R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS);
 311
 312        OUT_RING((pitch << 21) | (offset >> 5));
 313        OUT_RING(color);
 314
 315        OUT_RING((x << 16) | y);
 316        OUT_RING((w << 16) | h);
 317
 318        ADVANCE_RING();
 319}
 320
 321static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
 322{
 323        if (atomic_read(&dev_priv->idle_count) == 0)
 324                r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
 325        else
 326                atomic_set(&dev_priv->idle_count, 0);
 327}
 328
 329#endif
 330
 331/* ================================================================
 332 * CCE command dispatch functions
 333 */
 334
 335static void r128_print_dirty(const char *msg, unsigned int flags)
 336{
 337        DRM_INFO("%s: (0x%x) %s%s%s%s%s%s%s%s%s\n",
 338                 msg,
 339                 flags,
 340                 (flags & R128_UPLOAD_CORE) ? "core, " : "",
 341                 (flags & R128_UPLOAD_CONTEXT) ? "context, " : "",
 342                 (flags & R128_UPLOAD_SETUP) ? "setup, " : "",
 343                 (flags & R128_UPLOAD_TEX0) ? "tex0, " : "",
 344                 (flags & R128_UPLOAD_TEX1) ? "tex1, " : "",
 345                 (flags & R128_UPLOAD_MASKS) ? "masks, " : "",
 346                 (flags & R128_UPLOAD_WINDOW) ? "window, " : "",
 347                 (flags & R128_UPLOAD_CLIPRECTS) ? "cliprects, " : "",
 348                 (flags & R128_REQUIRE_QUIESCENCE) ? "quiescence, " : "");
 349}
 350
 351static void r128_cce_dispatch_clear(struct drm_device *dev,
 352                                    drm_r128_clear_t *clear)
 353{
 354        drm_r128_private_t *dev_priv = dev->dev_private;
 355        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 356        int nbox = sarea_priv->nbox;
 357        struct drm_clip_rect *pbox = sarea_priv->boxes;
 358        unsigned int flags = clear->flags;
 359        int i;
 360        RING_LOCALS;
 361        DRM_DEBUG("\n");
 362
 363        if (dev_priv->page_flipping && dev_priv->current_page == 1) {
 364                unsigned int tmp = flags;
 365
 366                flags &= ~(R128_FRONT | R128_BACK);
 367                if (tmp & R128_FRONT)
 368                        flags |= R128_BACK;
 369                if (tmp & R128_BACK)
 370                        flags |= R128_FRONT;
 371        }
 372
 373        for (i = 0; i < nbox; i++) {
 374                int x = pbox[i].x1;
 375                int y = pbox[i].y1;
 376                int w = pbox[i].x2 - x;
 377                int h = pbox[i].y2 - y;
 378
 379                DRM_DEBUG("dispatch clear %d,%d-%d,%d flags 0x%x\n",
 380                          pbox[i].x1, pbox[i].y1, pbox[i].x2,
 381                          pbox[i].y2, flags);
 382
 383                if (flags & (R128_FRONT | R128_BACK)) {
 384                        BEGIN_RING(2);
 385
 386                        OUT_RING(CCE_PACKET0(R128_DP_WRITE_MASK, 0));
 387                        OUT_RING(clear->color_mask);
 388
 389                        ADVANCE_RING();
 390                }
 391
 392                if (flags & R128_FRONT) {
 393                        BEGIN_RING(6);
 394
 395                        OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 396                        OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 397                                 R128_GMC_BRUSH_SOLID_COLOR |
 398                                 (dev_priv->color_fmt << 8) |
 399                                 R128_GMC_SRC_DATATYPE_COLOR |
 400                                 R128_ROP3_P |
 401                                 R128_GMC_CLR_CMP_CNTL_DIS |
 402                                 R128_GMC_AUX_CLIP_DIS);
 403
 404                        OUT_RING(dev_priv->front_pitch_offset_c);
 405                        OUT_RING(clear->clear_color);
 406
 407                        OUT_RING((x << 16) | y);
 408                        OUT_RING((w << 16) | h);
 409
 410                        ADVANCE_RING();
 411                }
 412
 413                if (flags & R128_BACK) {
 414                        BEGIN_RING(6);
 415
 416                        OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 417                        OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 418                                 R128_GMC_BRUSH_SOLID_COLOR |
 419                                 (dev_priv->color_fmt << 8) |
 420                                 R128_GMC_SRC_DATATYPE_COLOR |
 421                                 R128_ROP3_P |
 422                                 R128_GMC_CLR_CMP_CNTL_DIS |
 423                                 R128_GMC_AUX_CLIP_DIS);
 424
 425                        OUT_RING(dev_priv->back_pitch_offset_c);
 426                        OUT_RING(clear->clear_color);
 427
 428                        OUT_RING((x << 16) | y);
 429                        OUT_RING((w << 16) | h);
 430
 431                        ADVANCE_RING();
 432                }
 433
 434                if (flags & R128_DEPTH) {
 435                        BEGIN_RING(6);
 436
 437                        OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 438                        OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 439                                 R128_GMC_BRUSH_SOLID_COLOR |
 440                                 (dev_priv->depth_fmt << 8) |
 441                                 R128_GMC_SRC_DATATYPE_COLOR |
 442                                 R128_ROP3_P |
 443                                 R128_GMC_CLR_CMP_CNTL_DIS |
 444                                 R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS);
 445
 446                        OUT_RING(dev_priv->depth_pitch_offset_c);
 447                        OUT_RING(clear->clear_depth);
 448
 449                        OUT_RING((x << 16) | y);
 450                        OUT_RING((w << 16) | h);
 451
 452                        ADVANCE_RING();
 453                }
 454        }
 455}
 456
 457static void r128_cce_dispatch_swap(struct drm_device *dev)
 458{
 459        drm_r128_private_t *dev_priv = dev->dev_private;
 460        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 461        int nbox = sarea_priv->nbox;
 462        struct drm_clip_rect *pbox = sarea_priv->boxes;
 463        int i;
 464        RING_LOCALS;
 465        DRM_DEBUG("\n");
 466
 467#if R128_PERFORMANCE_BOXES
 468        /* Do some trivial performance monitoring...
 469         */
 470        r128_cce_performance_boxes(dev_priv);
 471#endif
 472
 473        for (i = 0; i < nbox; i++) {
 474                int x = pbox[i].x1;
 475                int y = pbox[i].y1;
 476                int w = pbox[i].x2 - x;
 477                int h = pbox[i].y2 - y;
 478
 479                BEGIN_RING(7);
 480
 481                OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
 482                OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
 483                         R128_GMC_DST_PITCH_OFFSET_CNTL |
 484                         R128_GMC_BRUSH_NONE |
 485                         (dev_priv->color_fmt << 8) |
 486                         R128_GMC_SRC_DATATYPE_COLOR |
 487                         R128_ROP3_S |
 488                         R128_DP_SRC_SOURCE_MEMORY |
 489                         R128_GMC_CLR_CMP_CNTL_DIS |
 490                         R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS);
 491
 492                /* Make this work even if front & back are flipped:
 493                 */
 494                if (dev_priv->current_page == 0) {
 495                        OUT_RING(dev_priv->back_pitch_offset_c);
 496                        OUT_RING(dev_priv->front_pitch_offset_c);
 497                } else {
 498                        OUT_RING(dev_priv->front_pitch_offset_c);
 499                        OUT_RING(dev_priv->back_pitch_offset_c);
 500                }
 501
 502                OUT_RING((x << 16) | y);
 503                OUT_RING((x << 16) | y);
 504                OUT_RING((w << 16) | h);
 505
 506                ADVANCE_RING();
 507        }
 508
 509        /* Increment the frame counter.  The client-side 3D driver must
 510         * throttle the framerate by waiting for this value before
 511         * performing the swapbuffer ioctl.
 512         */
 513        dev_priv->sarea_priv->last_frame++;
 514
 515        BEGIN_RING(2);
 516
 517        OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
 518        OUT_RING(dev_priv->sarea_priv->last_frame);
 519
 520        ADVANCE_RING();
 521}
 522
 523static void r128_cce_dispatch_flip(struct drm_device *dev)
 524{
 525        drm_r128_private_t *dev_priv = dev->dev_private;
 526        RING_LOCALS;
 527        DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 528                  dev_priv->current_page, dev_priv->sarea_priv->pfCurrentPage);
 529
 530#if R128_PERFORMANCE_BOXES
 531        /* Do some trivial performance monitoring...
 532         */
 533        r128_cce_performance_boxes(dev_priv);
 534#endif
 535
 536        BEGIN_RING(4);
 537
 538        R128_WAIT_UNTIL_PAGE_FLIPPED();
 539        OUT_RING(CCE_PACKET0(R128_CRTC_OFFSET, 0));
 540
 541        if (dev_priv->current_page == 0)
 542                OUT_RING(dev_priv->back_offset);
 543        else
 544                OUT_RING(dev_priv->front_offset);
 545
 546        ADVANCE_RING();
 547
 548        /* Increment the frame counter.  The client-side 3D driver must
 549         * throttle the framerate by waiting for this value before
 550         * performing the swapbuffer ioctl.
 551         */
 552        dev_priv->sarea_priv->last_frame++;
 553        dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page =
 554            1 - dev_priv->current_page;
 555
 556        BEGIN_RING(2);
 557
 558        OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
 559        OUT_RING(dev_priv->sarea_priv->last_frame);
 560
 561        ADVANCE_RING();
 562}
 563
 564static void r128_cce_dispatch_vertex(struct drm_device *dev, struct drm_buf *buf)
 565{
 566        drm_r128_private_t *dev_priv = dev->dev_private;
 567        drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 568        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 569        int format = sarea_priv->vc_format;
 570        int offset = buf->bus_address;
 571        int size = buf->used;
 572        int prim = buf_priv->prim;
 573        int i = 0;
 574        RING_LOCALS;
 575        DRM_DEBUG("buf=%d nbox=%d\n", buf->idx, sarea_priv->nbox);
 576
 577        if (0)
 578                r128_print_dirty("dispatch_vertex", sarea_priv->dirty);
 579
 580        if (buf->used) {
 581                buf_priv->dispatched = 1;
 582
 583                if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS)
 584                        r128_emit_state(dev_priv);
 585
 586                do {
 587                        /* Emit the next set of up to three cliprects */
 588                        if (i < sarea_priv->nbox) {
 589                                r128_emit_clip_rects(dev_priv,
 590                                                     &sarea_priv->boxes[i],
 591                                                     sarea_priv->nbox - i);
 592                        }
 593
 594                        /* Emit the vertex buffer rendering commands */
 595                        BEGIN_RING(5);
 596
 597                        OUT_RING(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM, 3));
 598                        OUT_RING(offset);
 599                        OUT_RING(size);
 600                        OUT_RING(format);
 601                        OUT_RING(prim | R128_CCE_VC_CNTL_PRIM_WALK_LIST |
 602                                 (size << R128_CCE_VC_CNTL_NUM_SHIFT));
 603
 604                        ADVANCE_RING();
 605
 606                        i += 3;
 607                } while (i < sarea_priv->nbox);
 608        }
 609
 610        if (buf_priv->discard) {
 611                buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 612
 613                /* Emit the vertex buffer age */
 614                BEGIN_RING(2);
 615
 616                OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 617                OUT_RING(buf_priv->age);
 618
 619                ADVANCE_RING();
 620
 621                buf->pending = 1;
 622                buf->used = 0;
 623                /* FIXME: Check dispatched field */
 624                buf_priv->dispatched = 0;
 625        }
 626
 627        dev_priv->sarea_priv->last_dispatch++;
 628
 629        sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
 630        sarea_priv->nbox = 0;
 631}
 632
 633static void r128_cce_dispatch_indirect(struct drm_device *dev,
 634                                       struct drm_buf *buf, int start, int end)
 635{
 636        drm_r128_private_t *dev_priv = dev->dev_private;
 637        drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 638        RING_LOCALS;
 639        DRM_DEBUG("indirect: buf=%d s=0x%x e=0x%x\n", buf->idx, start, end);
 640
 641        if (start != end) {
 642                int offset = buf->bus_address + start;
 643                int dwords = (end - start + 3) / sizeof(u32);
 644
 645                /* Indirect buffer data must be an even number of
 646                 * dwords, so if we've been given an odd number we must
 647                 * pad the data with a Type-2 CCE packet.
 648                 */
 649                if (dwords & 1) {
 650                        u32 *data = (u32 *)
 651                            ((char *)dev->agp_buffer_map->handle
 652                             + buf->offset + start);
 653                        data[dwords++] = cpu_to_le32(R128_CCE_PACKET2);
 654                }
 655
 656                buf_priv->dispatched = 1;
 657
 658                /* Fire off the indirect buffer */
 659                BEGIN_RING(3);
 660
 661                OUT_RING(CCE_PACKET0(R128_PM4_IW_INDOFF, 1));
 662                OUT_RING(offset);
 663                OUT_RING(dwords);
 664
 665                ADVANCE_RING();
 666        }
 667
 668        if (buf_priv->discard) {
 669                buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 670
 671                /* Emit the indirect buffer age */
 672                BEGIN_RING(2);
 673
 674                OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 675                OUT_RING(buf_priv->age);
 676
 677                ADVANCE_RING();
 678
 679                buf->pending = 1;
 680                buf->used = 0;
 681                /* FIXME: Check dispatched field */
 682                buf_priv->dispatched = 0;
 683        }
 684
 685        dev_priv->sarea_priv->last_dispatch++;
 686}
 687
 688static void r128_cce_dispatch_indices(struct drm_device *dev,
 689                                      struct drm_buf *buf,
 690                                      int start, int end, int count)
 691{
 692        drm_r128_private_t *dev_priv = dev->dev_private;
 693        drm_r128_buf_priv_t *buf_priv = buf->dev_private;
 694        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
 695        int format = sarea_priv->vc_format;
 696        int offset = dev->agp_buffer_map->offset - dev_priv->cce_buffers_offset;
 697        int prim = buf_priv->prim;
 698        u32 *data;
 699        int dwords;
 700        int i = 0;
 701        RING_LOCALS;
 702        DRM_DEBUG("indices: s=%d e=%d c=%d\n", start, end, count);
 703
 704        if (0)
 705                r128_print_dirty("dispatch_indices", sarea_priv->dirty);
 706
 707        if (start != end) {
 708                buf_priv->dispatched = 1;
 709
 710                if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS)
 711                        r128_emit_state(dev_priv);
 712
 713                dwords = (end - start + 3) / sizeof(u32);
 714
 715                data = (u32 *) ((char *)dev->agp_buffer_map->handle
 716                                + buf->offset + start);
 717
 718                data[0] = cpu_to_le32(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM,
 719                                                  dwords - 2));
 720
 721                data[1] = cpu_to_le32(offset);
 722                data[2] = cpu_to_le32(R128_MAX_VB_VERTS);
 723                data[3] = cpu_to_le32(format);
 724                data[4] = cpu_to_le32((prim | R128_CCE_VC_CNTL_PRIM_WALK_IND |
 725                                       (count << 16)));
 726
 727                if (count & 0x1) {
 728#ifdef __LITTLE_ENDIAN
 729                        data[dwords - 1] &= 0x0000ffff;
 730#else
 731                        data[dwords - 1] &= 0xffff0000;
 732#endif
 733                }
 734
 735                do {
 736                        /* Emit the next set of up to three cliprects */
 737                        if (i < sarea_priv->nbox) {
 738                                r128_emit_clip_rects(dev_priv,
 739                                                     &sarea_priv->boxes[i],
 740                                                     sarea_priv->nbox - i);
 741                        }
 742
 743                        r128_cce_dispatch_indirect(dev, buf, start, end);
 744
 745                        i += 3;
 746                } while (i < sarea_priv->nbox);
 747        }
 748
 749        if (buf_priv->discard) {
 750                buf_priv->age = dev_priv->sarea_priv->last_dispatch;
 751
 752                /* Emit the vertex buffer age */
 753                BEGIN_RING(2);
 754
 755                OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
 756                OUT_RING(buf_priv->age);
 757
 758                ADVANCE_RING();
 759
 760                buf->pending = 1;
 761                /* FIXME: Check dispatched field */
 762                buf_priv->dispatched = 0;
 763        }
 764
 765        dev_priv->sarea_priv->last_dispatch++;
 766
 767        sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
 768        sarea_priv->nbox = 0;
 769}
 770
 771static int r128_cce_dispatch_blit(struct drm_device *dev,
 772                                  struct drm_file *file_priv,
 773                                  drm_r128_blit_t *blit)
 774{
 775        drm_r128_private_t *dev_priv = dev->dev_private;
 776        struct drm_device_dma *dma = dev->dma;
 777        struct drm_buf *buf;
 778        drm_r128_buf_priv_t *buf_priv;
 779        u32 *data;
 780        int dword_shift, dwords;
 781        RING_LOCALS;
 782        DRM_DEBUG("\n");
 783
 784        /* The compiler won't optimize away a division by a variable,
 785         * even if the only legal values are powers of two.  Thus, we'll
 786         * use a shift instead.
 787         */
 788        switch (blit->format) {
 789        case R128_DATATYPE_ARGB8888:
 790                dword_shift = 0;
 791                break;
 792        case R128_DATATYPE_ARGB1555:
 793        case R128_DATATYPE_RGB565:
 794        case R128_DATATYPE_ARGB4444:
 795        case R128_DATATYPE_YVYU422:
 796        case R128_DATATYPE_VYUY422:
 797                dword_shift = 1;
 798                break;
 799        case R128_DATATYPE_CI8:
 800        case R128_DATATYPE_RGB8:
 801                dword_shift = 2;
 802                break;
 803        default:
 804                DRM_ERROR("invalid blit format %d\n", blit->format);
 805                return -EINVAL;
 806        }
 807
 808        /* Flush the pixel cache, and mark the contents as Read Invalid.
 809         * This ensures no pixel data gets mixed up with the texture
 810         * data from the host data blit, otherwise part of the texture
 811         * image may be corrupted.
 812         */
 813        BEGIN_RING(2);
 814
 815        OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
 816        OUT_RING(R128_PC_RI_GUI | R128_PC_FLUSH_GUI);
 817
 818        ADVANCE_RING();
 819
 820        /* Dispatch the indirect buffer.
 821         */
 822        buf = dma->buflist[blit->idx];
 823        buf_priv = buf->dev_private;
 824
 825        if (buf->file_priv != file_priv) {
 826                DRM_ERROR("process %d using buffer owned by %p\n",
 827                          DRM_CURRENTPID, buf->file_priv);
 828                return -EINVAL;
 829        }
 830        if (buf->pending) {
 831                DRM_ERROR("sending pending buffer %d\n", blit->idx);
 832                return -EINVAL;
 833        }
 834
 835        buf_priv->discard = 1;
 836
 837        dwords = (blit->width * blit->height) >> dword_shift;
 838
 839        data = (u32 *) ((char *)dev->agp_buffer_map->handle + buf->offset);
 840
 841        data[0] = cpu_to_le32(CCE_PACKET3(R128_CNTL_HOSTDATA_BLT, dwords + 6));
 842        data[1] = cpu_to_le32((R128_GMC_DST_PITCH_OFFSET_CNTL |
 843                               R128_GMC_BRUSH_NONE |
 844                               (blit->format << 8) |
 845                               R128_GMC_SRC_DATATYPE_COLOR |
 846                               R128_ROP3_S |
 847                               R128_DP_SRC_SOURCE_HOST_DATA |
 848                               R128_GMC_CLR_CMP_CNTL_DIS |
 849                               R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS));
 850
 851        data[2] = cpu_to_le32((blit->pitch << 21) | (blit->offset >> 5));
 852        data[3] = cpu_to_le32(0xffffffff);
 853        data[4] = cpu_to_le32(0xffffffff);
 854        data[5] = cpu_to_le32((blit->y << 16) | blit->x);
 855        data[6] = cpu_to_le32((blit->height << 16) | blit->width);
 856        data[7] = cpu_to_le32(dwords);
 857
 858        buf->used = (dwords + 8) * sizeof(u32);
 859
 860        r128_cce_dispatch_indirect(dev, buf, 0, buf->used);
 861
 862        /* Flush the pixel cache after the blit completes.  This ensures
 863         * the texture data is written out to memory before rendering
 864         * continues.
 865         */
 866        BEGIN_RING(2);
 867
 868        OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
 869        OUT_RING(R128_PC_FLUSH_GUI);
 870
 871        ADVANCE_RING();
 872
 873        return 0;
 874}
 875
 876/* ================================================================
 877 * Tiled depth buffer management
 878 *
 879 * FIXME: These should all set the destination write mask for when we
 880 * have hardware stencil support.
 881 */
 882
 883static int r128_cce_dispatch_write_span(struct drm_device *dev,
 884                                        drm_r128_depth_t *depth)
 885{
 886        drm_r128_private_t *dev_priv = dev->dev_private;
 887        int count, x, y;
 888        u32 *buffer;
 889        u8 *mask;
 890        int i, buffer_size, mask_size;
 891        RING_LOCALS;
 892        DRM_DEBUG("\n");
 893
 894        count = depth->n;
 895        if (count > 4096 || count <= 0)
 896                return -EMSGSIZE;
 897
 898        if (copy_from_user(&x, depth->x, sizeof(x)))
 899                return -EFAULT;
 900        if (copy_from_user(&y, depth->y, sizeof(y)))
 901                return -EFAULT;
 902
 903        buffer_size = depth->n * sizeof(u32);
 904        buffer = memdup_user(depth->buffer, buffer_size);
 905        if (IS_ERR(buffer))
 906                return PTR_ERR(buffer);
 907
 908        mask_size = depth->n;
 909        if (depth->mask) {
 910                mask = memdup_user(depth->mask, mask_size);
 911                if (IS_ERR(mask)) {
 912                        kfree(buffer);
 913                        return PTR_ERR(mask);
 914                }
 915
 916                for (i = 0; i < count; i++, x++) {
 917                        if (mask[i]) {
 918                                BEGIN_RING(6);
 919
 920                                OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 921                                OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 922                                         R128_GMC_BRUSH_SOLID_COLOR |
 923                                         (dev_priv->depth_fmt << 8) |
 924                                         R128_GMC_SRC_DATATYPE_COLOR |
 925                                         R128_ROP3_P |
 926                                         R128_GMC_CLR_CMP_CNTL_DIS |
 927                                         R128_GMC_WR_MSK_DIS);
 928
 929                                OUT_RING(dev_priv->depth_pitch_offset_c);
 930                                OUT_RING(buffer[i]);
 931
 932                                OUT_RING((x << 16) | y);
 933                                OUT_RING((1 << 16) | 1);
 934
 935                                ADVANCE_RING();
 936                        }
 937                }
 938
 939                kfree(mask);
 940        } else {
 941                for (i = 0; i < count; i++, x++) {
 942                        BEGIN_RING(6);
 943
 944                        OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
 945                        OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
 946                                 R128_GMC_BRUSH_SOLID_COLOR |
 947                                 (dev_priv->depth_fmt << 8) |
 948                                 R128_GMC_SRC_DATATYPE_COLOR |
 949                                 R128_ROP3_P |
 950                                 R128_GMC_CLR_CMP_CNTL_DIS |
 951                                 R128_GMC_WR_MSK_DIS);
 952
 953                        OUT_RING(dev_priv->depth_pitch_offset_c);
 954                        OUT_RING(buffer[i]);
 955
 956                        OUT_RING((x << 16) | y);
 957                        OUT_RING((1 << 16) | 1);
 958
 959                        ADVANCE_RING();
 960                }
 961        }
 962
 963        kfree(buffer);
 964
 965        return 0;
 966}
 967
 968static int r128_cce_dispatch_write_pixels(struct drm_device *dev,
 969                                          drm_r128_depth_t *depth)
 970{
 971        drm_r128_private_t *dev_priv = dev->dev_private;
 972        int count, *x, *y;
 973        u32 *buffer;
 974        u8 *mask;
 975        int i, xbuf_size, ybuf_size, buffer_size, mask_size;
 976        RING_LOCALS;
 977        DRM_DEBUG("\n");
 978
 979        count = depth->n;
 980        if (count > 4096 || count <= 0)
 981                return -EMSGSIZE;
 982
 983        xbuf_size = count * sizeof(*x);
 984        ybuf_size = count * sizeof(*y);
 985        x = kmalloc(xbuf_size, GFP_KERNEL);
 986        if (x == NULL)
 987                return -ENOMEM;
 988        y = kmalloc(ybuf_size, GFP_KERNEL);
 989        if (y == NULL) {
 990                kfree(x);
 991                return -ENOMEM;
 992        }
 993        if (copy_from_user(x, depth->x, xbuf_size)) {
 994                kfree(x);
 995                kfree(y);
 996                return -EFAULT;
 997        }
 998        if (copy_from_user(y, depth->y, xbuf_size)) {
 999                kfree(x);
1000                kfree(y);
1001                return -EFAULT;
1002        }
1003
1004        buffer_size = depth->n * sizeof(u32);
1005        buffer = memdup_user(depth->buffer, buffer_size);
1006        if (IS_ERR(buffer)) {
1007                kfree(x);
1008                kfree(y);
1009                return PTR_ERR(buffer);
1010        }
1011
1012        if (depth->mask) {
1013                mask_size = depth->n;
1014                mask = memdup_user(depth->mask, mask_size);
1015                if (IS_ERR(mask)) {
1016                        kfree(x);
1017                        kfree(y);
1018                        kfree(buffer);
1019                        return PTR_ERR(mask);
1020                }
1021
1022                for (i = 0; i < count; i++) {
1023                        if (mask[i]) {
1024                                BEGIN_RING(6);
1025
1026                                OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1027                                OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1028                                         R128_GMC_BRUSH_SOLID_COLOR |
1029                                         (dev_priv->depth_fmt << 8) |
1030                                         R128_GMC_SRC_DATATYPE_COLOR |
1031                                         R128_ROP3_P |
1032                                         R128_GMC_CLR_CMP_CNTL_DIS |
1033                                         R128_GMC_WR_MSK_DIS);
1034
1035                                OUT_RING(dev_priv->depth_pitch_offset_c);
1036                                OUT_RING(buffer[i]);
1037
1038                                OUT_RING((x[i] << 16) | y[i]);
1039                                OUT_RING((1 << 16) | 1);
1040
1041                                ADVANCE_RING();
1042                        }
1043                }
1044
1045                kfree(mask);
1046        } else {
1047                for (i = 0; i < count; i++) {
1048                        BEGIN_RING(6);
1049
1050                        OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1051                        OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1052                                 R128_GMC_BRUSH_SOLID_COLOR |
1053                                 (dev_priv->depth_fmt << 8) |
1054                                 R128_GMC_SRC_DATATYPE_COLOR |
1055                                 R128_ROP3_P |
1056                                 R128_GMC_CLR_CMP_CNTL_DIS |
1057                                 R128_GMC_WR_MSK_DIS);
1058
1059                        OUT_RING(dev_priv->depth_pitch_offset_c);
1060                        OUT_RING(buffer[i]);
1061
1062                        OUT_RING((x[i] << 16) | y[i]);
1063                        OUT_RING((1 << 16) | 1);
1064
1065                        ADVANCE_RING();
1066                }
1067        }
1068
1069        kfree(x);
1070        kfree(y);
1071        kfree(buffer);
1072
1073        return 0;
1074}
1075
1076static int r128_cce_dispatch_read_span(struct drm_device *dev,
1077                                       drm_r128_depth_t *depth)
1078{
1079        drm_r128_private_t *dev_priv = dev->dev_private;
1080        int count, x, y;
1081        RING_LOCALS;
1082        DRM_DEBUG("\n");
1083
1084        count = depth->n;
1085        if (count > 4096 || count <= 0)
1086                return -EMSGSIZE;
1087
1088        if (copy_from_user(&x, depth->x, sizeof(x)))
1089                return -EFAULT;
1090        if (copy_from_user(&y, depth->y, sizeof(y)))
1091                return -EFAULT;
1092
1093        BEGIN_RING(7);
1094
1095        OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1096        OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1097                 R128_GMC_DST_PITCH_OFFSET_CNTL |
1098                 R128_GMC_BRUSH_NONE |
1099                 (dev_priv->depth_fmt << 8) |
1100                 R128_GMC_SRC_DATATYPE_COLOR |
1101                 R128_ROP3_S |
1102                 R128_DP_SRC_SOURCE_MEMORY |
1103                 R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1104
1105        OUT_RING(dev_priv->depth_pitch_offset_c);
1106        OUT_RING(dev_priv->span_pitch_offset_c);
1107
1108        OUT_RING((x << 16) | y);
1109        OUT_RING((0 << 16) | 0);
1110        OUT_RING((count << 16) | 1);
1111
1112        ADVANCE_RING();
1113
1114        return 0;
1115}
1116
1117static int r128_cce_dispatch_read_pixels(struct drm_device *dev,
1118                                         drm_r128_depth_t *depth)
1119{
1120        drm_r128_private_t *dev_priv = dev->dev_private;
1121        int count, *x, *y;
1122        int i, xbuf_size, ybuf_size;
1123        RING_LOCALS;
1124        DRM_DEBUG("\n");
1125
1126        count = depth->n;
1127        if (count > 4096 || count <= 0)
1128                return -EMSGSIZE;
1129
1130        if (count > dev_priv->depth_pitch)
1131                count = dev_priv->depth_pitch;
1132
1133        xbuf_size = count * sizeof(*x);
1134        ybuf_size = count * sizeof(*y);
1135        x = kmalloc(xbuf_size, GFP_KERNEL);
1136        if (x == NULL)
1137                return -ENOMEM;
1138        y = kmalloc(ybuf_size, GFP_KERNEL);
1139        if (y == NULL) {
1140                kfree(x);
1141                return -ENOMEM;
1142        }
1143        if (copy_from_user(x, depth->x, xbuf_size)) {
1144                kfree(x);
1145                kfree(y);
1146                return -EFAULT;
1147        }
1148        if (copy_from_user(y, depth->y, ybuf_size)) {
1149                kfree(x);
1150                kfree(y);
1151                return -EFAULT;
1152        }
1153
1154        for (i = 0; i < count; i++) {
1155                BEGIN_RING(7);
1156
1157                OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1158                OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1159                         R128_GMC_DST_PITCH_OFFSET_CNTL |
1160                         R128_GMC_BRUSH_NONE |
1161                         (dev_priv->depth_fmt << 8) |
1162                         R128_GMC_SRC_DATATYPE_COLOR |
1163                         R128_ROP3_S |
1164                         R128_DP_SRC_SOURCE_MEMORY |
1165                         R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1166
1167                OUT_RING(dev_priv->depth_pitch_offset_c);
1168                OUT_RING(dev_priv->span_pitch_offset_c);
1169
1170                OUT_RING((x[i] << 16) | y[i]);
1171                OUT_RING((i << 16) | 0);
1172                OUT_RING((1 << 16) | 1);
1173
1174                ADVANCE_RING();
1175        }
1176
1177        kfree(x);
1178        kfree(y);
1179
1180        return 0;
1181}
1182
1183/* ================================================================
1184 * Polygon stipple
1185 */
1186
1187static void r128_cce_dispatch_stipple(struct drm_device *dev, u32 *stipple)
1188{
1189        drm_r128_private_t *dev_priv = dev->dev_private;
1190        int i;
1191        RING_LOCALS;
1192        DRM_DEBUG("\n");
1193
1194        BEGIN_RING(33);
1195
1196        OUT_RING(CCE_PACKET0(R128_BRUSH_DATA0, 31));
1197        for (i = 0; i < 32; i++)
1198                OUT_RING(stipple[i]);
1199
1200        ADVANCE_RING();
1201}
1202
1203/* ================================================================
1204 * IOCTL functions
1205 */
1206
1207static int r128_cce_clear(struct drm_device *dev, void *data, struct drm_file *file_priv)
1208{
1209        drm_r128_private_t *dev_priv = dev->dev_private;
1210        drm_r128_sarea_t *sarea_priv;
1211        drm_r128_clear_t *clear = data;
1212        DRM_DEBUG("\n");
1213
1214        LOCK_TEST_WITH_RETURN(dev, file_priv);
1215
1216        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1217
1218        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1219
1220        sarea_priv = dev_priv->sarea_priv;
1221
1222        if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1223                sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1224
1225        r128_cce_dispatch_clear(dev, clear);
1226        COMMIT_RING();
1227
1228        /* Make sure we restore the 3D state next time.
1229         */
1230        dev_priv->sarea_priv->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
1231
1232        return 0;
1233}
1234
1235static int r128_do_init_pageflip(struct drm_device *dev)
1236{
1237        drm_r128_private_t *dev_priv = dev->dev_private;
1238        DRM_DEBUG("\n");
1239
1240        dev_priv->crtc_offset = R128_READ(R128_CRTC_OFFSET);
1241        dev_priv->crtc_offset_cntl = R128_READ(R128_CRTC_OFFSET_CNTL);
1242
1243        R128_WRITE(R128_CRTC_OFFSET, dev_priv->front_offset);
1244        R128_WRITE(R128_CRTC_OFFSET_CNTL,
1245                   dev_priv->crtc_offset_cntl | R128_CRTC_OFFSET_FLIP_CNTL);
1246
1247        dev_priv->page_flipping = 1;
1248        dev_priv->current_page = 0;
1249        dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page;
1250
1251        return 0;
1252}
1253
1254static int r128_do_cleanup_pageflip(struct drm_device *dev)
1255{
1256        drm_r128_private_t *dev_priv = dev->dev_private;
1257        DRM_DEBUG("\n");
1258
1259        R128_WRITE(R128_CRTC_OFFSET, dev_priv->crtc_offset);
1260        R128_WRITE(R128_CRTC_OFFSET_CNTL, dev_priv->crtc_offset_cntl);
1261
1262        if (dev_priv->current_page != 0) {
1263                r128_cce_dispatch_flip(dev);
1264                COMMIT_RING();
1265        }
1266
1267        dev_priv->page_flipping = 0;
1268        return 0;
1269}
1270
1271/* Swapping and flipping are different operations, need different ioctls.
1272 * They can & should be intermixed to support multiple 3d windows.
1273 */
1274
1275static int r128_cce_flip(struct drm_device *dev, void *data, struct drm_file *file_priv)
1276{
1277        drm_r128_private_t *dev_priv = dev->dev_private;
1278        DRM_DEBUG("\n");
1279
1280        LOCK_TEST_WITH_RETURN(dev, file_priv);
1281
1282        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1283
1284        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1285
1286        if (!dev_priv->page_flipping)
1287                r128_do_init_pageflip(dev);
1288
1289        r128_cce_dispatch_flip(dev);
1290
1291        COMMIT_RING();
1292        return 0;
1293}
1294
1295static int r128_cce_swap(struct drm_device *dev, void *data, struct drm_file *file_priv)
1296{
1297        drm_r128_private_t *dev_priv = dev->dev_private;
1298        drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1299        DRM_DEBUG("\n");
1300
1301        LOCK_TEST_WITH_RETURN(dev, file_priv);
1302
1303        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1304
1305        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1306
1307        if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1308                sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1309
1310        r128_cce_dispatch_swap(dev);
1311        dev_priv->sarea_priv->dirty |= (R128_UPLOAD_CONTEXT |
1312                                        R128_UPLOAD_MASKS);
1313
1314        COMMIT_RING();
1315        return 0;
1316}
1317
1318static int r128_cce_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv)
1319{
1320        drm_r128_private_t *dev_priv = dev->dev_private;
1321        struct drm_device_dma *dma = dev->dma;
1322        struct drm_buf *buf;
1323        drm_r128_buf_priv_t *buf_priv;
1324        drm_r128_vertex_t *vertex = data;
1325
1326        LOCK_TEST_WITH_RETURN(dev, file_priv);
1327
1328        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1329
1330        DRM_DEBUG("pid=%d index=%d count=%d discard=%d\n",
1331                  DRM_CURRENTPID, vertex->idx, vertex->count, vertex->discard);
1332
1333        if (vertex->idx < 0 || vertex->idx >= dma->buf_count) {
1334                DRM_ERROR("buffer index %d (of %d max)\n",
1335                          vertex->idx, dma->buf_count - 1);
1336                return -EINVAL;
1337        }
1338        if (vertex->prim < 0 ||
1339            vertex->prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1340                DRM_ERROR("buffer prim %d\n", vertex->prim);
1341                return -EINVAL;
1342        }
1343
1344        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1345        VB_AGE_TEST_WITH_RETURN(dev_priv);
1346
1347        buf = dma->buflist[vertex->idx];
1348        buf_priv = buf->dev_private;
1349
1350        if (buf->file_priv != file_priv) {
1351                DRM_ERROR("process %d using buffer owned by %p\n",
1352                          DRM_CURRENTPID, buf->file_priv);
1353                return -EINVAL;
1354        }
1355        if (buf->pending) {
1356                DRM_ERROR("sending pending buffer %d\n", vertex->idx);
1357                return -EINVAL;
1358        }
1359
1360        buf->used = vertex->count;
1361        buf_priv->prim = vertex->prim;
1362        buf_priv->discard = vertex->discard;
1363
1364        r128_cce_dispatch_vertex(dev, buf);
1365
1366        COMMIT_RING();
1367        return 0;
1368}
1369
1370static int r128_cce_indices(struct drm_device *dev, void *data, struct drm_file *file_priv)
1371{
1372        drm_r128_private_t *dev_priv = dev->dev_private;
1373        struct drm_device_dma *dma = dev->dma;
1374        struct drm_buf *buf;
1375        drm_r128_buf_priv_t *buf_priv;
1376        drm_r128_indices_t *elts = data;
1377        int count;
1378
1379        LOCK_TEST_WITH_RETURN(dev, file_priv);
1380
1381        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1382
1383        DRM_DEBUG("pid=%d buf=%d s=%d e=%d d=%d\n", DRM_CURRENTPID,
1384                  elts->idx, elts->start, elts->end, elts->discard);
1385
1386        if (elts->idx < 0 || elts->idx >= dma->buf_count) {
1387                DRM_ERROR("buffer index %d (of %d max)\n",
1388                          elts->idx, dma->buf_count - 1);
1389                return -EINVAL;
1390        }
1391        if (elts->prim < 0 ||
1392            elts->prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1393                DRM_ERROR("buffer prim %d\n", elts->prim);
1394                return -EINVAL;
1395        }
1396
1397        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1398        VB_AGE_TEST_WITH_RETURN(dev_priv);
1399
1400        buf = dma->buflist[elts->idx];
1401        buf_priv = buf->dev_private;
1402
1403        if (buf->file_priv != file_priv) {
1404                DRM_ERROR("process %d using buffer owned by %p\n",
1405                          DRM_CURRENTPID, buf->file_priv);
1406                return -EINVAL;
1407        }
1408        if (buf->pending) {
1409                DRM_ERROR("sending pending buffer %d\n", elts->idx);
1410                return -EINVAL;
1411        }
1412
1413        count = (elts->end - elts->start) / sizeof(u16);
1414        elts->start -= R128_INDEX_PRIM_OFFSET;
1415
1416        if (elts->start & 0x7) {
1417                DRM_ERROR("misaligned buffer 0x%x\n", elts->start);
1418                return -EINVAL;
1419        }
1420        if (elts->start < buf->used) {
1421                DRM_ERROR("no header 0x%x - 0x%x\n", elts->start, buf->used);
1422                return -EINVAL;
1423        }
1424
1425        buf->used = elts->end;
1426        buf_priv->prim = elts->prim;
1427        buf_priv->discard = elts->discard;
1428
1429        r128_cce_dispatch_indices(dev, buf, elts->start, elts->end, count);
1430
1431        COMMIT_RING();
1432        return 0;
1433}
1434
1435static int r128_cce_blit(struct drm_device *dev, void *data, struct drm_file *file_priv)
1436{
1437        struct drm_device_dma *dma = dev->dma;
1438        drm_r128_private_t *dev_priv = dev->dev_private;
1439        drm_r128_blit_t *blit = data;
1440        int ret;
1441
1442        LOCK_TEST_WITH_RETURN(dev, file_priv);
1443
1444        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1445
1446        DRM_DEBUG("pid=%d index=%d\n", DRM_CURRENTPID, blit->idx);
1447
1448        if (blit->idx < 0 || blit->idx >= dma->buf_count) {
1449                DRM_ERROR("buffer index %d (of %d max)\n",
1450                          blit->idx, dma->buf_count - 1);
1451                return -EINVAL;
1452        }
1453
1454        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1455        VB_AGE_TEST_WITH_RETURN(dev_priv);
1456
1457        ret = r128_cce_dispatch_blit(dev, file_priv, blit);
1458
1459        COMMIT_RING();
1460        return ret;
1461}
1462
1463static int r128_cce_depth(struct drm_device *dev, void *data, struct drm_file *file_priv)
1464{
1465        drm_r128_private_t *dev_priv = dev->dev_private;
1466        drm_r128_depth_t *depth = data;
1467        int ret;
1468
1469        LOCK_TEST_WITH_RETURN(dev, file_priv);
1470
1471        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1472
1473        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1474
1475        ret = -EINVAL;
1476        switch (depth->func) {
1477        case R128_WRITE_SPAN:
1478                ret = r128_cce_dispatch_write_span(dev, depth);
1479                break;
1480        case R128_WRITE_PIXELS:
1481                ret = r128_cce_dispatch_write_pixels(dev, depth);
1482                break;
1483        case R128_READ_SPAN:
1484                ret = r128_cce_dispatch_read_span(dev, depth);
1485                break;
1486        case R128_READ_PIXELS:
1487                ret = r128_cce_dispatch_read_pixels(dev, depth);
1488                break;
1489        }
1490
1491        COMMIT_RING();
1492        return ret;
1493}
1494
1495static int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file *file_priv)
1496{
1497        drm_r128_private_t *dev_priv = dev->dev_private;
1498        drm_r128_stipple_t *stipple = data;
1499        u32 mask[32];
1500
1501        LOCK_TEST_WITH_RETURN(dev, file_priv);
1502
1503        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1504
1505        if (copy_from_user(&mask, stipple->mask, 32 * sizeof(u32)))
1506                return -EFAULT;
1507
1508        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1509
1510        r128_cce_dispatch_stipple(dev, mask);
1511
1512        COMMIT_RING();
1513        return 0;
1514}
1515
1516static int r128_cce_indirect(struct drm_device *dev, void *data, struct drm_file *file_priv)
1517{
1518        drm_r128_private_t *dev_priv = dev->dev_private;
1519        struct drm_device_dma *dma = dev->dma;
1520        struct drm_buf *buf;
1521        drm_r128_buf_priv_t *buf_priv;
1522        drm_r128_indirect_t *indirect = data;
1523#if 0
1524        RING_LOCALS;
1525#endif
1526
1527        LOCK_TEST_WITH_RETURN(dev, file_priv);
1528
1529        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1530
1531        DRM_DEBUG("idx=%d s=%d e=%d d=%d\n",
1532                  indirect->idx, indirect->start, indirect->end,
1533                  indirect->discard);
1534
1535        if (indirect->idx < 0 || indirect->idx >= dma->buf_count) {
1536                DRM_ERROR("buffer index %d (of %d max)\n",
1537                          indirect->idx, dma->buf_count - 1);
1538                return -EINVAL;
1539        }
1540
1541        buf = dma->buflist[indirect->idx];
1542        buf_priv = buf->dev_private;
1543
1544        if (buf->file_priv != file_priv) {
1545                DRM_ERROR("process %d using buffer owned by %p\n",
1546                          DRM_CURRENTPID, buf->file_priv);
1547                return -EINVAL;
1548        }
1549        if (buf->pending) {
1550                DRM_ERROR("sending pending buffer %d\n", indirect->idx);
1551                return -EINVAL;
1552        }
1553
1554        if (indirect->start < buf->used) {
1555                DRM_ERROR("reusing indirect: start=0x%x actual=0x%x\n",
1556                          indirect->start, buf->used);
1557                return -EINVAL;
1558        }
1559
1560        RING_SPACE_TEST_WITH_RETURN(dev_priv);
1561        VB_AGE_TEST_WITH_RETURN(dev_priv);
1562
1563        buf->used = indirect->end;
1564        buf_priv->discard = indirect->discard;
1565
1566#if 0
1567        /* Wait for the 3D stream to idle before the indirect buffer
1568         * containing 2D acceleration commands is processed.
1569         */
1570        BEGIN_RING(2);
1571        RADEON_WAIT_UNTIL_3D_IDLE();
1572        ADVANCE_RING();
1573#endif
1574
1575        /* Dispatch the indirect buffer full of commands from the
1576         * X server.  This is insecure and is thus only available to
1577         * privileged clients.
1578         */
1579        r128_cce_dispatch_indirect(dev, buf, indirect->start, indirect->end);
1580
1581        COMMIT_RING();
1582        return 0;
1583}
1584
1585static int r128_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
1586{
1587        drm_r128_private_t *dev_priv = dev->dev_private;
1588        drm_r128_getparam_t *param = data;
1589        int value;
1590
1591        DEV_INIT_TEST_WITH_RETURN(dev_priv);
1592
1593        DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1594
1595        switch (param->param) {
1596        case R128_PARAM_IRQ_NR:
1597                value = dev->pdev->irq;
1598                break;
1599        default:
1600                return -EINVAL;
1601        }
1602
1603        if (copy_to_user(param->value, &value, sizeof(int))) {
1604                DRM_ERROR("copy_to_user\n");
1605                return -EFAULT;
1606        }
1607
1608        return 0;
1609}
1610
1611void r128_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1612{
1613        if (dev->dev_private) {
1614                drm_r128_private_t *dev_priv = dev->dev_private;
1615                if (dev_priv->page_flipping)
1616                        r128_do_cleanup_pageflip(dev);
1617        }
1618}
1619void r128_driver_lastclose(struct drm_device *dev)
1620{
1621        r128_do_cleanup_cce(dev);
1622}
1623
1624const struct drm_ioctl_desc r128_ioctls[] = {
1625        DRM_IOCTL_DEF_DRV(R128_INIT, r128_cce_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1626        DRM_IOCTL_DEF_DRV(R128_CCE_START, r128_cce_start, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1627        DRM_IOCTL_DEF_DRV(R128_CCE_STOP, r128_cce_stop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1628        DRM_IOCTL_DEF_DRV(R128_CCE_RESET, r128_cce_reset, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1629        DRM_IOCTL_DEF_DRV(R128_CCE_IDLE, r128_cce_idle, DRM_AUTH),
1630        DRM_IOCTL_DEF_DRV(R128_RESET, r128_engine_reset, DRM_AUTH),
1631        DRM_IOCTL_DEF_DRV(R128_FULLSCREEN, r128_fullscreen, DRM_AUTH),
1632        DRM_IOCTL_DEF_DRV(R128_SWAP, r128_cce_swap, DRM_AUTH),
1633        DRM_IOCTL_DEF_DRV(R128_FLIP, r128_cce_flip, DRM_AUTH),
1634        DRM_IOCTL_DEF_DRV(R128_CLEAR, r128_cce_clear, DRM_AUTH),
1635        DRM_IOCTL_DEF_DRV(R128_VERTEX, r128_cce_vertex, DRM_AUTH),
1636        DRM_IOCTL_DEF_DRV(R128_INDICES, r128_cce_indices, DRM_AUTH),
1637        DRM_IOCTL_DEF_DRV(R128_BLIT, r128_cce_blit, DRM_AUTH),
1638        DRM_IOCTL_DEF_DRV(R128_DEPTH, r128_cce_depth, DRM_AUTH),
1639        DRM_IOCTL_DEF_DRV(R128_STIPPLE, r128_cce_stipple, DRM_AUTH),
1640        DRM_IOCTL_DEF_DRV(R128_INDIRECT, r128_cce_indirect, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1641        DRM_IOCTL_DEF_DRV(R128_GETPARAM, r128_getparam, DRM_AUTH),
1642};
1643
1644int r128_max_ioctl = ARRAY_SIZE(r128_ioctls);
1645