drm: SiS 315 Awareness.
[linux-2.6] / drivers / char / drm / r128_state.c
1 /* r128_state.c -- State support for r128 -*- linux-c -*-
2  * Created: Thu Jan 27 02:53:43 2000 by gareth@valinux.com
3  */
4 /* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
5  * All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the next
15  * paragraph) shall be included in all copies or substantial portions of the
16  * Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24  * DEALINGS IN THE SOFTWARE.
25  *
26  * Authors:
27  *    Gareth Hughes <gareth@valinux.com>
28  */
29
30 #include "drmP.h"
31 #include "drm.h"
32 #include "r128_drm.h"
33 #include "r128_drv.h"
34
35 /* ================================================================
36  * CCE hardware state programming functions
37  */
38
39 static void r128_emit_clip_rects(drm_r128_private_t * dev_priv,
40                                  drm_clip_rect_t * boxes, int count)
41 {
42         u32 aux_sc_cntl = 0x00000000;
43         RING_LOCALS;
44         DRM_DEBUG("    %s\n", __FUNCTION__);
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
82 static __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("    %s\n", __FUNCTION__);
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
97 static __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("    %s\n", __FUNCTION__);
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
123 static __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("    %s\n", __FUNCTION__);
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
139 static __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("    %s\n", __FUNCTION__);
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
158 static __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("    %s\n", __FUNCTION__);
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
173 static __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("    %s\n", __FUNCTION__);
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
193         OUT_RING(CCE_PACKET0(R128_CONSTANT_COLOR_C, 1));
194         OUT_RING(ctx->constant_color_c);
195         OUT_RING(tex->tex_border_color);
196
197         ADVANCE_RING();
198 }
199
200 static __inline__ void r128_emit_tex1(drm_r128_private_t * dev_priv)
201 {
202         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
203         drm_r128_texture_regs_t *tex = &sarea_priv->tex_state[1];
204         int i;
205         RING_LOCALS;
206         DRM_DEBUG("    %s\n", __FUNCTION__);
207
208         BEGIN_RING(5 + R128_MAX_TEXTURE_LEVELS);
209
210         OUT_RING(CCE_PACKET0(R128_SEC_TEX_CNTL_C, 1 + R128_MAX_TEXTURE_LEVELS));
211         OUT_RING(tex->tex_cntl);
212         OUT_RING(tex->tex_combine_cntl);
213         for (i = 0; i < R128_MAX_TEXTURE_LEVELS; i++) {
214                 OUT_RING(tex->tex_offset[i]);
215         }
216
217         OUT_RING(CCE_PACKET0(R128_SEC_TEXTURE_BORDER_COLOR_C, 0));
218         OUT_RING(tex->tex_border_color);
219
220         ADVANCE_RING();
221 }
222
223 static void r128_emit_state(drm_r128_private_t * dev_priv)
224 {
225         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
226         unsigned int dirty = sarea_priv->dirty;
227
228         DRM_DEBUG("%s: dirty=0x%08x\n", __FUNCTION__, dirty);
229
230         if (dirty & R128_UPLOAD_CORE) {
231                 r128_emit_core(dev_priv);
232                 sarea_priv->dirty &= ~R128_UPLOAD_CORE;
233         }
234
235         if (dirty & R128_UPLOAD_CONTEXT) {
236                 r128_emit_context(dev_priv);
237                 sarea_priv->dirty &= ~R128_UPLOAD_CONTEXT;
238         }
239
240         if (dirty & R128_UPLOAD_SETUP) {
241                 r128_emit_setup(dev_priv);
242                 sarea_priv->dirty &= ~R128_UPLOAD_SETUP;
243         }
244
245         if (dirty & R128_UPLOAD_MASKS) {
246                 r128_emit_masks(dev_priv);
247                 sarea_priv->dirty &= ~R128_UPLOAD_MASKS;
248         }
249
250         if (dirty & R128_UPLOAD_WINDOW) {
251                 r128_emit_window(dev_priv);
252                 sarea_priv->dirty &= ~R128_UPLOAD_WINDOW;
253         }
254
255         if (dirty & R128_UPLOAD_TEX0) {
256                 r128_emit_tex0(dev_priv);
257                 sarea_priv->dirty &= ~R128_UPLOAD_TEX0;
258         }
259
260         if (dirty & R128_UPLOAD_TEX1) {
261                 r128_emit_tex1(dev_priv);
262                 sarea_priv->dirty &= ~R128_UPLOAD_TEX1;
263         }
264
265         /* Turn off the texture cache flushing */
266         sarea_priv->context_state.tex_cntl_c &= ~R128_TEX_CACHE_FLUSH;
267
268         sarea_priv->dirty &= ~R128_REQUIRE_QUIESCENCE;
269 }
270
271 #if R128_PERFORMANCE_BOXES
272 /* ================================================================
273  * Performance monitoring functions
274  */
275
276 static void r128_clear_box(drm_r128_private_t * dev_priv,
277                            int x, int y, int w, int h, int r, int g, int b)
278 {
279         u32 pitch, offset;
280         u32 fb_bpp, color;
281         RING_LOCALS;
282
283         switch (dev_priv->fb_bpp) {
284         case 16:
285                 fb_bpp = R128_GMC_DST_16BPP;
286                 color = (((r & 0xf8) << 8) |
287                          ((g & 0xfc) << 3) | ((b & 0xf8) >> 3));
288                 break;
289         case 24:
290                 fb_bpp = R128_GMC_DST_24BPP;
291                 color = ((r << 16) | (g << 8) | b);
292                 break;
293         case 32:
294                 fb_bpp = R128_GMC_DST_32BPP;
295                 color = (((0xff) << 24) | (r << 16) | (g << 8) | b);
296                 break;
297         default:
298                 return;
299         }
300
301         offset = dev_priv->back_offset;
302         pitch = dev_priv->back_pitch >> 3;
303
304         BEGIN_RING(6);
305
306         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
307         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
308                  R128_GMC_BRUSH_SOLID_COLOR |
309                  fb_bpp |
310                  R128_GMC_SRC_DATATYPE_COLOR |
311                  R128_ROP3_P |
312                  R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_AUX_CLIP_DIS);
313
314         OUT_RING((pitch << 21) | (offset >> 5));
315         OUT_RING(color);
316
317         OUT_RING((x << 16) | y);
318         OUT_RING((w << 16) | h);
319
320         ADVANCE_RING();
321 }
322
323 static void r128_cce_performance_boxes(drm_r128_private_t * dev_priv)
324 {
325         if (atomic_read(&dev_priv->idle_count) == 0) {
326                 r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
327         } else {
328                 atomic_set(&dev_priv->idle_count, 0);
329         }
330 }
331
332 #endif
333
334 /* ================================================================
335  * CCE command dispatch functions
336  */
337
338 static void r128_print_dirty(const char *msg, unsigned int flags)
339 {
340         DRM_INFO("%s: (0x%x) %s%s%s%s%s%s%s%s%s\n",
341                  msg,
342                  flags,
343                  (flags & R128_UPLOAD_CORE) ? "core, " : "",
344                  (flags & R128_UPLOAD_CONTEXT) ? "context, " : "",
345                  (flags & R128_UPLOAD_SETUP) ? "setup, " : "",
346                  (flags & R128_UPLOAD_TEX0) ? "tex0, " : "",
347                  (flags & R128_UPLOAD_TEX1) ? "tex1, " : "",
348                  (flags & R128_UPLOAD_MASKS) ? "masks, " : "",
349                  (flags & R128_UPLOAD_WINDOW) ? "window, " : "",
350                  (flags & R128_UPLOAD_CLIPRECTS) ? "cliprects, " : "",
351                  (flags & R128_REQUIRE_QUIESCENCE) ? "quiescence, " : "");
352 }
353
354 static void r128_cce_dispatch_clear(drm_device_t * dev,
355                                     drm_r128_clear_t * clear)
356 {
357         drm_r128_private_t *dev_priv = dev->dev_private;
358         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
359         int nbox = sarea_priv->nbox;
360         drm_clip_rect_t *pbox = sarea_priv->boxes;
361         unsigned int flags = clear->flags;
362         int i;
363         RING_LOCALS;
364         DRM_DEBUG("%s\n", __FUNCTION__);
365
366         if (dev_priv->page_flipping && dev_priv->current_page == 1) {
367                 unsigned int tmp = flags;
368
369                 flags &= ~(R128_FRONT | R128_BACK);
370                 if (tmp & R128_FRONT)
371                         flags |= R128_BACK;
372                 if (tmp & R128_BACK)
373                         flags |= R128_FRONT;
374         }
375
376         for (i = 0; i < nbox; i++) {
377                 int x = pbox[i].x1;
378                 int y = pbox[i].y1;
379                 int w = pbox[i].x2 - x;
380                 int h = pbox[i].y2 - y;
381
382                 DRM_DEBUG("dispatch clear %d,%d-%d,%d flags 0x%x\n",
383                           pbox[i].x1, pbox[i].y1, pbox[i].x2,
384                           pbox[i].y2, flags);
385
386                 if (flags & (R128_FRONT | R128_BACK)) {
387                         BEGIN_RING(2);
388
389                         OUT_RING(CCE_PACKET0(R128_DP_WRITE_MASK, 0));
390                         OUT_RING(clear->color_mask);
391
392                         ADVANCE_RING();
393                 }
394
395                 if (flags & R128_FRONT) {
396                         BEGIN_RING(6);
397
398                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
399                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
400                                  R128_GMC_BRUSH_SOLID_COLOR |
401                                  (dev_priv->color_fmt << 8) |
402                                  R128_GMC_SRC_DATATYPE_COLOR |
403                                  R128_ROP3_P |
404                                  R128_GMC_CLR_CMP_CNTL_DIS |
405                                  R128_GMC_AUX_CLIP_DIS);
406
407                         OUT_RING(dev_priv->front_pitch_offset_c);
408                         OUT_RING(clear->clear_color);
409
410                         OUT_RING((x << 16) | y);
411                         OUT_RING((w << 16) | h);
412
413                         ADVANCE_RING();
414                 }
415
416                 if (flags & R128_BACK) {
417                         BEGIN_RING(6);
418
419                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
420                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
421                                  R128_GMC_BRUSH_SOLID_COLOR |
422                                  (dev_priv->color_fmt << 8) |
423                                  R128_GMC_SRC_DATATYPE_COLOR |
424                                  R128_ROP3_P |
425                                  R128_GMC_CLR_CMP_CNTL_DIS |
426                                  R128_GMC_AUX_CLIP_DIS);
427
428                         OUT_RING(dev_priv->back_pitch_offset_c);
429                         OUT_RING(clear->clear_color);
430
431                         OUT_RING((x << 16) | y);
432                         OUT_RING((w << 16) | h);
433
434                         ADVANCE_RING();
435                 }
436
437                 if (flags & R128_DEPTH) {
438                         BEGIN_RING(6);
439
440                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
441                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
442                                  R128_GMC_BRUSH_SOLID_COLOR |
443                                  (dev_priv->depth_fmt << 8) |
444                                  R128_GMC_SRC_DATATYPE_COLOR |
445                                  R128_ROP3_P |
446                                  R128_GMC_CLR_CMP_CNTL_DIS |
447                                  R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS);
448
449                         OUT_RING(dev_priv->depth_pitch_offset_c);
450                         OUT_RING(clear->clear_depth);
451
452                         OUT_RING((x << 16) | y);
453                         OUT_RING((w << 16) | h);
454
455                         ADVANCE_RING();
456                 }
457         }
458 }
459
460 static void r128_cce_dispatch_swap(drm_device_t * dev)
461 {
462         drm_r128_private_t *dev_priv = dev->dev_private;
463         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
464         int nbox = sarea_priv->nbox;
465         drm_clip_rect_t *pbox = sarea_priv->boxes;
466         int i;
467         RING_LOCALS;
468         DRM_DEBUG("%s\n", __FUNCTION__);
469
470 #if R128_PERFORMANCE_BOXES
471         /* Do some trivial performance monitoring...
472          */
473         r128_cce_performance_boxes(dev_priv);
474 #endif
475
476         for (i = 0; i < nbox; i++) {
477                 int x = pbox[i].x1;
478                 int y = pbox[i].y1;
479                 int w = pbox[i].x2 - x;
480                 int h = pbox[i].y2 - y;
481
482                 BEGIN_RING(7);
483
484                 OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
485                 OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
486                          R128_GMC_DST_PITCH_OFFSET_CNTL |
487                          R128_GMC_BRUSH_NONE |
488                          (dev_priv->color_fmt << 8) |
489                          R128_GMC_SRC_DATATYPE_COLOR |
490                          R128_ROP3_S |
491                          R128_DP_SRC_SOURCE_MEMORY |
492                          R128_GMC_CLR_CMP_CNTL_DIS |
493                          R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS);
494
495                 /* Make this work even if front & back are flipped:
496                  */
497                 if (dev_priv->current_page == 0) {
498                         OUT_RING(dev_priv->back_pitch_offset_c);
499                         OUT_RING(dev_priv->front_pitch_offset_c);
500                 } else {
501                         OUT_RING(dev_priv->front_pitch_offset_c);
502                         OUT_RING(dev_priv->back_pitch_offset_c);
503                 }
504
505                 OUT_RING((x << 16) | y);
506                 OUT_RING((x << 16) | y);
507                 OUT_RING((w << 16) | h);
508
509                 ADVANCE_RING();
510         }
511
512         /* Increment the frame counter.  The client-side 3D driver must
513          * throttle the framerate by waiting for this value before
514          * performing the swapbuffer ioctl.
515          */
516         dev_priv->sarea_priv->last_frame++;
517
518         BEGIN_RING(2);
519
520         OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
521         OUT_RING(dev_priv->sarea_priv->last_frame);
522
523         ADVANCE_RING();
524 }
525
526 static void r128_cce_dispatch_flip(drm_device_t * dev)
527 {
528         drm_r128_private_t *dev_priv = dev->dev_private;
529         RING_LOCALS;
530         DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
531                   __FUNCTION__,
532                   dev_priv->current_page, dev_priv->sarea_priv->pfCurrentPage);
533
534 #if R128_PERFORMANCE_BOXES
535         /* Do some trivial performance monitoring...
536          */
537         r128_cce_performance_boxes(dev_priv);
538 #endif
539
540         BEGIN_RING(4);
541
542         R128_WAIT_UNTIL_PAGE_FLIPPED();
543         OUT_RING(CCE_PACKET0(R128_CRTC_OFFSET, 0));
544
545         if (dev_priv->current_page == 0) {
546                 OUT_RING(dev_priv->back_offset);
547         } else {
548                 OUT_RING(dev_priv->front_offset);
549         }
550
551         ADVANCE_RING();
552
553         /* Increment the frame counter.  The client-side 3D driver must
554          * throttle the framerate by waiting for this value before
555          * performing the swapbuffer ioctl.
556          */
557         dev_priv->sarea_priv->last_frame++;
558         dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page =
559             1 - dev_priv->current_page;
560
561         BEGIN_RING(2);
562
563         OUT_RING(CCE_PACKET0(R128_LAST_FRAME_REG, 0));
564         OUT_RING(dev_priv->sarea_priv->last_frame);
565
566         ADVANCE_RING();
567 }
568
569 static void r128_cce_dispatch_vertex(drm_device_t * dev, drm_buf_t * buf)
570 {
571         drm_r128_private_t *dev_priv = dev->dev_private;
572         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
573         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
574         int format = sarea_priv->vc_format;
575         int offset = buf->bus_address;
576         int size = buf->used;
577         int prim = buf_priv->prim;
578         int i = 0;
579         RING_LOCALS;
580         DRM_DEBUG("buf=%d nbox=%d\n", buf->idx, sarea_priv->nbox);
581
582         if (0)
583                 r128_print_dirty("dispatch_vertex", sarea_priv->dirty);
584
585         if (buf->used) {
586                 buf_priv->dispatched = 1;
587
588                 if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS) {
589                         r128_emit_state(dev_priv);
590                 }
591
592                 do {
593                         /* Emit the next set of up to three cliprects */
594                         if (i < sarea_priv->nbox) {
595                                 r128_emit_clip_rects(dev_priv,
596                                                      &sarea_priv->boxes[i],
597                                                      sarea_priv->nbox - i);
598                         }
599
600                         /* Emit the vertex buffer rendering commands */
601                         BEGIN_RING(5);
602
603                         OUT_RING(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM, 3));
604                         OUT_RING(offset);
605                         OUT_RING(size);
606                         OUT_RING(format);
607                         OUT_RING(prim | R128_CCE_VC_CNTL_PRIM_WALK_LIST |
608                                  (size << R128_CCE_VC_CNTL_NUM_SHIFT));
609
610                         ADVANCE_RING();
611
612                         i += 3;
613                 } while (i < sarea_priv->nbox);
614         }
615
616         if (buf_priv->discard) {
617                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
618
619                 /* Emit the vertex buffer age */
620                 BEGIN_RING(2);
621
622                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
623                 OUT_RING(buf_priv->age);
624
625                 ADVANCE_RING();
626
627                 buf->pending = 1;
628                 buf->used = 0;
629                 /* FIXME: Check dispatched field */
630                 buf_priv->dispatched = 0;
631         }
632
633         dev_priv->sarea_priv->last_dispatch++;
634
635         sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
636         sarea_priv->nbox = 0;
637 }
638
639 static void r128_cce_dispatch_indirect(drm_device_t * dev,
640                                        drm_buf_t * buf, int start, int end)
641 {
642         drm_r128_private_t *dev_priv = dev->dev_private;
643         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
644         RING_LOCALS;
645         DRM_DEBUG("indirect: buf=%d s=0x%x e=0x%x\n", buf->idx, start, end);
646
647         if (start != end) {
648                 int offset = buf->bus_address + start;
649                 int dwords = (end - start + 3) / sizeof(u32);
650
651                 /* Indirect buffer data must be an even number of
652                  * dwords, so if we've been given an odd number we must
653                  * pad the data with a Type-2 CCE packet.
654                  */
655                 if (dwords & 1) {
656                         u32 *data = (u32 *)
657                             ((char *)dev->agp_buffer_map->handle
658                              + buf->offset + start);
659                         data[dwords++] = cpu_to_le32(R128_CCE_PACKET2);
660                 }
661
662                 buf_priv->dispatched = 1;
663
664                 /* Fire off the indirect buffer */
665                 BEGIN_RING(3);
666
667                 OUT_RING(CCE_PACKET0(R128_PM4_IW_INDOFF, 1));
668                 OUT_RING(offset);
669                 OUT_RING(dwords);
670
671                 ADVANCE_RING();
672         }
673
674         if (buf_priv->discard) {
675                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
676
677                 /* Emit the indirect buffer age */
678                 BEGIN_RING(2);
679
680                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
681                 OUT_RING(buf_priv->age);
682
683                 ADVANCE_RING();
684
685                 buf->pending = 1;
686                 buf->used = 0;
687                 /* FIXME: Check dispatched field */
688                 buf_priv->dispatched = 0;
689         }
690
691         dev_priv->sarea_priv->last_dispatch++;
692 }
693
694 static void r128_cce_dispatch_indices(drm_device_t * dev,
695                                       drm_buf_t * buf,
696                                       int start, int end, int count)
697 {
698         drm_r128_private_t *dev_priv = dev->dev_private;
699         drm_r128_buf_priv_t *buf_priv = buf->dev_private;
700         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
701         int format = sarea_priv->vc_format;
702         int offset = dev->agp_buffer_map->offset - dev_priv->cce_buffers_offset;
703         int prim = buf_priv->prim;
704         u32 *data;
705         int dwords;
706         int i = 0;
707         RING_LOCALS;
708         DRM_DEBUG("indices: s=%d e=%d c=%d\n", start, end, count);
709
710         if (0)
711                 r128_print_dirty("dispatch_indices", sarea_priv->dirty);
712
713         if (start != end) {
714                 buf_priv->dispatched = 1;
715
716                 if (sarea_priv->dirty & ~R128_UPLOAD_CLIPRECTS) {
717                         r128_emit_state(dev_priv);
718                 }
719
720                 dwords = (end - start + 3) / sizeof(u32);
721
722                 data = (u32 *) ((char *)dev->agp_buffer_map->handle
723                                 + buf->offset + start);
724
725                 data[0] = cpu_to_le32(CCE_PACKET3(R128_3D_RNDR_GEN_INDX_PRIM,
726                                                   dwords - 2));
727
728                 data[1] = cpu_to_le32(offset);
729                 data[2] = cpu_to_le32(R128_MAX_VB_VERTS);
730                 data[3] = cpu_to_le32(format);
731                 data[4] = cpu_to_le32((prim | R128_CCE_VC_CNTL_PRIM_WALK_IND |
732                                        (count << 16)));
733
734                 if (count & 0x1) {
735 #ifdef __LITTLE_ENDIAN
736                         data[dwords - 1] &= 0x0000ffff;
737 #else
738                         data[dwords - 1] &= 0xffff0000;
739 #endif
740                 }
741
742                 do {
743                         /* Emit the next set of up to three cliprects */
744                         if (i < sarea_priv->nbox) {
745                                 r128_emit_clip_rects(dev_priv,
746                                                      &sarea_priv->boxes[i],
747                                                      sarea_priv->nbox - i);
748                         }
749
750                         r128_cce_dispatch_indirect(dev, buf, start, end);
751
752                         i += 3;
753                 } while (i < sarea_priv->nbox);
754         }
755
756         if (buf_priv->discard) {
757                 buf_priv->age = dev_priv->sarea_priv->last_dispatch;
758
759                 /* Emit the vertex buffer age */
760                 BEGIN_RING(2);
761
762                 OUT_RING(CCE_PACKET0(R128_LAST_DISPATCH_REG, 0));
763                 OUT_RING(buf_priv->age);
764
765                 ADVANCE_RING();
766
767                 buf->pending = 1;
768                 /* FIXME: Check dispatched field */
769                 buf_priv->dispatched = 0;
770         }
771
772         dev_priv->sarea_priv->last_dispatch++;
773
774         sarea_priv->dirty &= ~R128_UPLOAD_CLIPRECTS;
775         sarea_priv->nbox = 0;
776 }
777
778 static int r128_cce_dispatch_blit(DRMFILE filp,
779                                   drm_device_t * dev, drm_r128_blit_t * blit)
780 {
781         drm_r128_private_t *dev_priv = dev->dev_private;
782         drm_device_dma_t *dma = dev->dma;
783         drm_buf_t *buf;
784         drm_r128_buf_priv_t *buf_priv;
785         u32 *data;
786         int dword_shift, dwords;
787         RING_LOCALS;
788         DRM_DEBUG("\n");
789
790         /* The compiler won't optimize away a division by a variable,
791          * even if the only legal values are powers of two.  Thus, we'll
792          * use a shift instead.
793          */
794         switch (blit->format) {
795         case R128_DATATYPE_ARGB8888:
796                 dword_shift = 0;
797                 break;
798         case R128_DATATYPE_ARGB1555:
799         case R128_DATATYPE_RGB565:
800         case R128_DATATYPE_ARGB4444:
801         case R128_DATATYPE_YVYU422:
802         case R128_DATATYPE_VYUY422:
803                 dword_shift = 1;
804                 break;
805         case R128_DATATYPE_CI8:
806         case R128_DATATYPE_RGB8:
807                 dword_shift = 2;
808                 break;
809         default:
810                 DRM_ERROR("invalid blit format %d\n", blit->format);
811                 return DRM_ERR(EINVAL);
812         }
813
814         /* Flush the pixel cache, and mark the contents as Read Invalid.
815          * This ensures no pixel data gets mixed up with the texture
816          * data from the host data blit, otherwise part of the texture
817          * image may be corrupted.
818          */
819         BEGIN_RING(2);
820
821         OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
822         OUT_RING(R128_PC_RI_GUI | R128_PC_FLUSH_GUI);
823
824         ADVANCE_RING();
825
826         /* Dispatch the indirect buffer.
827          */
828         buf = dma->buflist[blit->idx];
829         buf_priv = buf->dev_private;
830
831         if (buf->filp != filp) {
832                 DRM_ERROR("process %d using buffer owned by %p\n",
833                           DRM_CURRENTPID, buf->filp);
834                 return DRM_ERR(EINVAL);
835         }
836         if (buf->pending) {
837                 DRM_ERROR("sending pending buffer %d\n", blit->idx);
838                 return DRM_ERR(EINVAL);
839         }
840
841         buf_priv->discard = 1;
842
843         dwords = (blit->width * blit->height) >> dword_shift;
844
845         data = (u32 *) ((char *)dev->agp_buffer_map->handle + buf->offset);
846
847         data[0] = cpu_to_le32(CCE_PACKET3(R128_CNTL_HOSTDATA_BLT, dwords + 6));
848         data[1] = cpu_to_le32((R128_GMC_DST_PITCH_OFFSET_CNTL |
849                                R128_GMC_BRUSH_NONE |
850                                (blit->format << 8) |
851                                R128_GMC_SRC_DATATYPE_COLOR |
852                                R128_ROP3_S |
853                                R128_DP_SRC_SOURCE_HOST_DATA |
854                                R128_GMC_CLR_CMP_CNTL_DIS |
855                                R128_GMC_AUX_CLIP_DIS | R128_GMC_WR_MSK_DIS));
856
857         data[2] = cpu_to_le32((blit->pitch << 21) | (blit->offset >> 5));
858         data[3] = cpu_to_le32(0xffffffff);
859         data[4] = cpu_to_le32(0xffffffff);
860         data[5] = cpu_to_le32((blit->y << 16) | blit->x);
861         data[6] = cpu_to_le32((blit->height << 16) | blit->width);
862         data[7] = cpu_to_le32(dwords);
863
864         buf->used = (dwords + 8) * sizeof(u32);
865
866         r128_cce_dispatch_indirect(dev, buf, 0, buf->used);
867
868         /* Flush the pixel cache after the blit completes.  This ensures
869          * the texture data is written out to memory before rendering
870          * continues.
871          */
872         BEGIN_RING(2);
873
874         OUT_RING(CCE_PACKET0(R128_PC_GUI_CTLSTAT, 0));
875         OUT_RING(R128_PC_FLUSH_GUI);
876
877         ADVANCE_RING();
878
879         return 0;
880 }
881
882 /* ================================================================
883  * Tiled depth buffer management
884  *
885  * FIXME: These should all set the destination write mask for when we
886  * have hardware stencil support.
887  */
888
889 static int r128_cce_dispatch_write_span(drm_device_t * dev,
890                                         drm_r128_depth_t * depth)
891 {
892         drm_r128_private_t *dev_priv = dev->dev_private;
893         int count, x, y;
894         u32 *buffer;
895         u8 *mask;
896         int i, buffer_size, mask_size;
897         RING_LOCALS;
898         DRM_DEBUG("\n");
899
900         count = depth->n;
901         if (count > 4096 || count <= 0)
902                 return DRM_ERR(EMSGSIZE);
903
904         if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) {
905                 return DRM_ERR(EFAULT);
906         }
907         if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) {
908                 return DRM_ERR(EFAULT);
909         }
910
911         buffer_size = depth->n * sizeof(u32);
912         buffer = drm_alloc(buffer_size, DRM_MEM_BUFS);
913         if (buffer == NULL)
914                 return DRM_ERR(ENOMEM);
915         if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) {
916                 drm_free(buffer, buffer_size, DRM_MEM_BUFS);
917                 return DRM_ERR(EFAULT);
918         }
919
920         mask_size = depth->n * sizeof(u8);
921         if (depth->mask) {
922                 mask = drm_alloc(mask_size, DRM_MEM_BUFS);
923                 if (mask == NULL) {
924                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
925                         return DRM_ERR(ENOMEM);
926                 }
927                 if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) {
928                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
929                         drm_free(mask, mask_size, DRM_MEM_BUFS);
930                         return DRM_ERR(EFAULT);
931                 }
932
933                 for (i = 0; i < count; i++, x++) {
934                         if (mask[i]) {
935                                 BEGIN_RING(6);
936
937                                 OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
938                                 OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
939                                          R128_GMC_BRUSH_SOLID_COLOR |
940                                          (dev_priv->depth_fmt << 8) |
941                                          R128_GMC_SRC_DATATYPE_COLOR |
942                                          R128_ROP3_P |
943                                          R128_GMC_CLR_CMP_CNTL_DIS |
944                                          R128_GMC_WR_MSK_DIS);
945
946                                 OUT_RING(dev_priv->depth_pitch_offset_c);
947                                 OUT_RING(buffer[i]);
948
949                                 OUT_RING((x << 16) | y);
950                                 OUT_RING((1 << 16) | 1);
951
952                                 ADVANCE_RING();
953                         }
954                 }
955
956                 drm_free(mask, mask_size, DRM_MEM_BUFS);
957         } else {
958                 for (i = 0; i < count; i++, x++) {
959                         BEGIN_RING(6);
960
961                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
962                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
963                                  R128_GMC_BRUSH_SOLID_COLOR |
964                                  (dev_priv->depth_fmt << 8) |
965                                  R128_GMC_SRC_DATATYPE_COLOR |
966                                  R128_ROP3_P |
967                                  R128_GMC_CLR_CMP_CNTL_DIS |
968                                  R128_GMC_WR_MSK_DIS);
969
970                         OUT_RING(dev_priv->depth_pitch_offset_c);
971                         OUT_RING(buffer[i]);
972
973                         OUT_RING((x << 16) | y);
974                         OUT_RING((1 << 16) | 1);
975
976                         ADVANCE_RING();
977                 }
978         }
979
980         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
981
982         return 0;
983 }
984
985 static int r128_cce_dispatch_write_pixels(drm_device_t * dev,
986                                           drm_r128_depth_t * depth)
987 {
988         drm_r128_private_t *dev_priv = dev->dev_private;
989         int count, *x, *y;
990         u32 *buffer;
991         u8 *mask;
992         int i, xbuf_size, ybuf_size, buffer_size, mask_size;
993         RING_LOCALS;
994         DRM_DEBUG("\n");
995
996         count = depth->n;
997         if (count > 4096 || count <= 0)
998                 return DRM_ERR(EMSGSIZE);
999
1000         xbuf_size = count * sizeof(*x);
1001         ybuf_size = count * sizeof(*y);
1002         x = drm_alloc(xbuf_size, DRM_MEM_BUFS);
1003         if (x == NULL) {
1004                 return DRM_ERR(ENOMEM);
1005         }
1006         y = drm_alloc(ybuf_size, DRM_MEM_BUFS);
1007         if (y == NULL) {
1008                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1009                 return DRM_ERR(ENOMEM);
1010         }
1011         if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) {
1012                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1013                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1014                 return DRM_ERR(EFAULT);
1015         }
1016         if (DRM_COPY_FROM_USER(y, depth->y, xbuf_size)) {
1017                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1018                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1019                 return DRM_ERR(EFAULT);
1020         }
1021
1022         buffer_size = depth->n * sizeof(u32);
1023         buffer = drm_alloc(buffer_size, DRM_MEM_BUFS);
1024         if (buffer == NULL) {
1025                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1026                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1027                 return DRM_ERR(ENOMEM);
1028         }
1029         if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) {
1030                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1031                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1032                 drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1033                 return DRM_ERR(EFAULT);
1034         }
1035
1036         if (depth->mask) {
1037                 mask_size = depth->n * sizeof(u8);
1038                 mask = drm_alloc(mask_size, DRM_MEM_BUFS);
1039                 if (mask == NULL) {
1040                         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1041                         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1042                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1043                         return DRM_ERR(ENOMEM);
1044                 }
1045                 if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) {
1046                         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1047                         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1048                         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1049                         drm_free(mask, mask_size, DRM_MEM_BUFS);
1050                         return DRM_ERR(EFAULT);
1051                 }
1052
1053                 for (i = 0; i < count; i++) {
1054                         if (mask[i]) {
1055                                 BEGIN_RING(6);
1056
1057                                 OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1058                                 OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1059                                          R128_GMC_BRUSH_SOLID_COLOR |
1060                                          (dev_priv->depth_fmt << 8) |
1061                                          R128_GMC_SRC_DATATYPE_COLOR |
1062                                          R128_ROP3_P |
1063                                          R128_GMC_CLR_CMP_CNTL_DIS |
1064                                          R128_GMC_WR_MSK_DIS);
1065
1066                                 OUT_RING(dev_priv->depth_pitch_offset_c);
1067                                 OUT_RING(buffer[i]);
1068
1069                                 OUT_RING((x[i] << 16) | y[i]);
1070                                 OUT_RING((1 << 16) | 1);
1071
1072                                 ADVANCE_RING();
1073                         }
1074                 }
1075
1076                 drm_free(mask, mask_size, DRM_MEM_BUFS);
1077         } else {
1078                 for (i = 0; i < count; i++) {
1079                         BEGIN_RING(6);
1080
1081                         OUT_RING(CCE_PACKET3(R128_CNTL_PAINT_MULTI, 4));
1082                         OUT_RING(R128_GMC_DST_PITCH_OFFSET_CNTL |
1083                                  R128_GMC_BRUSH_SOLID_COLOR |
1084                                  (dev_priv->depth_fmt << 8) |
1085                                  R128_GMC_SRC_DATATYPE_COLOR |
1086                                  R128_ROP3_P |
1087                                  R128_GMC_CLR_CMP_CNTL_DIS |
1088                                  R128_GMC_WR_MSK_DIS);
1089
1090                         OUT_RING(dev_priv->depth_pitch_offset_c);
1091                         OUT_RING(buffer[i]);
1092
1093                         OUT_RING((x[i] << 16) | y[i]);
1094                         OUT_RING((1 << 16) | 1);
1095
1096                         ADVANCE_RING();
1097                 }
1098         }
1099
1100         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1101         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1102         drm_free(buffer, buffer_size, DRM_MEM_BUFS);
1103
1104         return 0;
1105 }
1106
1107 static int r128_cce_dispatch_read_span(drm_device_t * dev,
1108                                        drm_r128_depth_t * depth)
1109 {
1110         drm_r128_private_t *dev_priv = dev->dev_private;
1111         int count, x, y;
1112         RING_LOCALS;
1113         DRM_DEBUG("\n");
1114
1115         count = depth->n;
1116         if (count > 4096 || count <= 0)
1117                 return DRM_ERR(EMSGSIZE);
1118
1119         if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) {
1120                 return DRM_ERR(EFAULT);
1121         }
1122         if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) {
1123                 return DRM_ERR(EFAULT);
1124         }
1125
1126         BEGIN_RING(7);
1127
1128         OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1129         OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1130                  R128_GMC_DST_PITCH_OFFSET_CNTL |
1131                  R128_GMC_BRUSH_NONE |
1132                  (dev_priv->depth_fmt << 8) |
1133                  R128_GMC_SRC_DATATYPE_COLOR |
1134                  R128_ROP3_S |
1135                  R128_DP_SRC_SOURCE_MEMORY |
1136                  R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1137
1138         OUT_RING(dev_priv->depth_pitch_offset_c);
1139         OUT_RING(dev_priv->span_pitch_offset_c);
1140
1141         OUT_RING((x << 16) | y);
1142         OUT_RING((0 << 16) | 0);
1143         OUT_RING((count << 16) | 1);
1144
1145         ADVANCE_RING();
1146
1147         return 0;
1148 }
1149
1150 static int r128_cce_dispatch_read_pixels(drm_device_t * dev,
1151                                          drm_r128_depth_t * depth)
1152 {
1153         drm_r128_private_t *dev_priv = dev->dev_private;
1154         int count, *x, *y;
1155         int i, xbuf_size, ybuf_size;
1156         RING_LOCALS;
1157         DRM_DEBUG("%s\n", __FUNCTION__);
1158
1159         count = depth->n;
1160         if (count > 4096 || count <= 0)
1161                 return DRM_ERR(EMSGSIZE);
1162
1163         if (count > dev_priv->depth_pitch) {
1164                 count = dev_priv->depth_pitch;
1165         }
1166
1167         xbuf_size = count * sizeof(*x);
1168         ybuf_size = count * sizeof(*y);
1169         x = drm_alloc(xbuf_size, DRM_MEM_BUFS);
1170         if (x == NULL) {
1171                 return DRM_ERR(ENOMEM);
1172         }
1173         y = drm_alloc(ybuf_size, DRM_MEM_BUFS);
1174         if (y == NULL) {
1175                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1176                 return DRM_ERR(ENOMEM);
1177         }
1178         if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) {
1179                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1180                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1181                 return DRM_ERR(EFAULT);
1182         }
1183         if (DRM_COPY_FROM_USER(y, depth->y, ybuf_size)) {
1184                 drm_free(x, xbuf_size, DRM_MEM_BUFS);
1185                 drm_free(y, ybuf_size, DRM_MEM_BUFS);
1186                 return DRM_ERR(EFAULT);
1187         }
1188
1189         for (i = 0; i < count; i++) {
1190                 BEGIN_RING(7);
1191
1192                 OUT_RING(CCE_PACKET3(R128_CNTL_BITBLT_MULTI, 5));
1193                 OUT_RING(R128_GMC_SRC_PITCH_OFFSET_CNTL |
1194                          R128_GMC_DST_PITCH_OFFSET_CNTL |
1195                          R128_GMC_BRUSH_NONE |
1196                          (dev_priv->depth_fmt << 8) |
1197                          R128_GMC_SRC_DATATYPE_COLOR |
1198                          R128_ROP3_S |
1199                          R128_DP_SRC_SOURCE_MEMORY |
1200                          R128_GMC_CLR_CMP_CNTL_DIS | R128_GMC_WR_MSK_DIS);
1201
1202                 OUT_RING(dev_priv->depth_pitch_offset_c);
1203                 OUT_RING(dev_priv->span_pitch_offset_c);
1204
1205                 OUT_RING((x[i] << 16) | y[i]);
1206                 OUT_RING((i << 16) | 0);
1207                 OUT_RING((1 << 16) | 1);
1208
1209                 ADVANCE_RING();
1210         }
1211
1212         drm_free(x, xbuf_size, DRM_MEM_BUFS);
1213         drm_free(y, ybuf_size, DRM_MEM_BUFS);
1214
1215         return 0;
1216 }
1217
1218 /* ================================================================
1219  * Polygon stipple
1220  */
1221
1222 static void r128_cce_dispatch_stipple(drm_device_t * dev, u32 * stipple)
1223 {
1224         drm_r128_private_t *dev_priv = dev->dev_private;
1225         int i;
1226         RING_LOCALS;
1227         DRM_DEBUG("%s\n", __FUNCTION__);
1228
1229         BEGIN_RING(33);
1230
1231         OUT_RING(CCE_PACKET0(R128_BRUSH_DATA0, 31));
1232         for (i = 0; i < 32; i++) {
1233                 OUT_RING(stipple[i]);
1234         }
1235
1236         ADVANCE_RING();
1237 }
1238
1239 /* ================================================================
1240  * IOCTL functions
1241  */
1242
1243 static int r128_cce_clear(DRM_IOCTL_ARGS)
1244 {
1245         DRM_DEVICE;
1246         drm_r128_private_t *dev_priv = dev->dev_private;
1247         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1248         drm_r128_clear_t clear;
1249         DRM_DEBUG("\n");
1250
1251         LOCK_TEST_WITH_RETURN(dev, filp);
1252
1253         DRM_COPY_FROM_USER_IOCTL(clear, (drm_r128_clear_t __user *) data,
1254                                  sizeof(clear));
1255
1256         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1257
1258         if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1259                 sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1260
1261         r128_cce_dispatch_clear(dev, &clear);
1262         COMMIT_RING();
1263
1264         /* Make sure we restore the 3D state next time.
1265          */
1266         dev_priv->sarea_priv->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
1267
1268         return 0;
1269 }
1270
1271 static int r128_do_init_pageflip(drm_device_t * dev)
1272 {
1273         drm_r128_private_t *dev_priv = dev->dev_private;
1274         DRM_DEBUG("\n");
1275
1276         dev_priv->crtc_offset = R128_READ(R128_CRTC_OFFSET);
1277         dev_priv->crtc_offset_cntl = R128_READ(R128_CRTC_OFFSET_CNTL);
1278
1279         R128_WRITE(R128_CRTC_OFFSET, dev_priv->front_offset);
1280         R128_WRITE(R128_CRTC_OFFSET_CNTL,
1281                    dev_priv->crtc_offset_cntl | R128_CRTC_OFFSET_FLIP_CNTL);
1282
1283         dev_priv->page_flipping = 1;
1284         dev_priv->current_page = 0;
1285         dev_priv->sarea_priv->pfCurrentPage = dev_priv->current_page;
1286
1287         return 0;
1288 }
1289
1290 static int r128_do_cleanup_pageflip(drm_device_t * dev)
1291 {
1292         drm_r128_private_t *dev_priv = dev->dev_private;
1293         DRM_DEBUG("\n");
1294
1295         R128_WRITE(R128_CRTC_OFFSET, dev_priv->crtc_offset);
1296         R128_WRITE(R128_CRTC_OFFSET_CNTL, dev_priv->crtc_offset_cntl);
1297
1298         if (dev_priv->current_page != 0) {
1299                 r128_cce_dispatch_flip(dev);
1300                 COMMIT_RING();
1301         }
1302
1303         dev_priv->page_flipping = 0;
1304         return 0;
1305 }
1306
1307 /* Swapping and flipping are different operations, need different ioctls.
1308  * They can & should be intermixed to support multiple 3d windows.
1309  */
1310
1311 static int r128_cce_flip(DRM_IOCTL_ARGS)
1312 {
1313         DRM_DEVICE;
1314         drm_r128_private_t *dev_priv = dev->dev_private;
1315         DRM_DEBUG("%s\n", __FUNCTION__);
1316
1317         LOCK_TEST_WITH_RETURN(dev, filp);
1318
1319         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1320
1321         if (!dev_priv->page_flipping)
1322                 r128_do_init_pageflip(dev);
1323
1324         r128_cce_dispatch_flip(dev);
1325
1326         COMMIT_RING();
1327         return 0;
1328 }
1329
1330 static int r128_cce_swap(DRM_IOCTL_ARGS)
1331 {
1332         DRM_DEVICE;
1333         drm_r128_private_t *dev_priv = dev->dev_private;
1334         drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;
1335         DRM_DEBUG("%s\n", __FUNCTION__);
1336
1337         LOCK_TEST_WITH_RETURN(dev, filp);
1338
1339         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1340
1341         if (sarea_priv->nbox > R128_NR_SAREA_CLIPRECTS)
1342                 sarea_priv->nbox = R128_NR_SAREA_CLIPRECTS;
1343
1344         r128_cce_dispatch_swap(dev);
1345         dev_priv->sarea_priv->dirty |= (R128_UPLOAD_CONTEXT |
1346                                         R128_UPLOAD_MASKS);
1347
1348         COMMIT_RING();
1349         return 0;
1350 }
1351
1352 static int r128_cce_vertex(DRM_IOCTL_ARGS)
1353 {
1354         DRM_DEVICE;
1355         drm_r128_private_t *dev_priv = dev->dev_private;
1356         drm_device_dma_t *dma = dev->dma;
1357         drm_buf_t *buf;
1358         drm_r128_buf_priv_t *buf_priv;
1359         drm_r128_vertex_t vertex;
1360
1361         LOCK_TEST_WITH_RETURN(dev, filp);
1362
1363         if (!dev_priv) {
1364                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1365                 return DRM_ERR(EINVAL);
1366         }
1367
1368         DRM_COPY_FROM_USER_IOCTL(vertex, (drm_r128_vertex_t __user *) data,
1369                                  sizeof(vertex));
1370
1371         DRM_DEBUG("pid=%d index=%d count=%d discard=%d\n",
1372                   DRM_CURRENTPID, vertex.idx, vertex.count, vertex.discard);
1373
1374         if (vertex.idx < 0 || vertex.idx >= dma->buf_count) {
1375                 DRM_ERROR("buffer index %d (of %d max)\n",
1376                           vertex.idx, dma->buf_count - 1);
1377                 return DRM_ERR(EINVAL);
1378         }
1379         if (vertex.prim < 0 ||
1380             vertex.prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1381                 DRM_ERROR("buffer prim %d\n", vertex.prim);
1382                 return DRM_ERR(EINVAL);
1383         }
1384
1385         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1386         VB_AGE_TEST_WITH_RETURN(dev_priv);
1387
1388         buf = dma->buflist[vertex.idx];
1389         buf_priv = buf->dev_private;
1390
1391         if (buf->filp != filp) {
1392                 DRM_ERROR("process %d using buffer owned by %p\n",
1393                           DRM_CURRENTPID, buf->filp);
1394                 return DRM_ERR(EINVAL);
1395         }
1396         if (buf->pending) {
1397                 DRM_ERROR("sending pending buffer %d\n", vertex.idx);
1398                 return DRM_ERR(EINVAL);
1399         }
1400
1401         buf->used = vertex.count;
1402         buf_priv->prim = vertex.prim;
1403         buf_priv->discard = vertex.discard;
1404
1405         r128_cce_dispatch_vertex(dev, buf);
1406
1407         COMMIT_RING();
1408         return 0;
1409 }
1410
1411 static int r128_cce_indices(DRM_IOCTL_ARGS)
1412 {
1413         DRM_DEVICE;
1414         drm_r128_private_t *dev_priv = dev->dev_private;
1415         drm_device_dma_t *dma = dev->dma;
1416         drm_buf_t *buf;
1417         drm_r128_buf_priv_t *buf_priv;
1418         drm_r128_indices_t elts;
1419         int count;
1420
1421         LOCK_TEST_WITH_RETURN(dev, filp);
1422
1423         if (!dev_priv) {
1424                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1425                 return DRM_ERR(EINVAL);
1426         }
1427
1428         DRM_COPY_FROM_USER_IOCTL(elts, (drm_r128_indices_t __user *) data,
1429                                  sizeof(elts));
1430
1431         DRM_DEBUG("pid=%d buf=%d s=%d e=%d d=%d\n", DRM_CURRENTPID,
1432                   elts.idx, elts.start, elts.end, elts.discard);
1433
1434         if (elts.idx < 0 || elts.idx >= dma->buf_count) {
1435                 DRM_ERROR("buffer index %d (of %d max)\n",
1436                           elts.idx, dma->buf_count - 1);
1437                 return DRM_ERR(EINVAL);
1438         }
1439         if (elts.prim < 0 || elts.prim > R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2) {
1440                 DRM_ERROR("buffer prim %d\n", elts.prim);
1441                 return DRM_ERR(EINVAL);
1442         }
1443
1444         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1445         VB_AGE_TEST_WITH_RETURN(dev_priv);
1446
1447         buf = dma->buflist[elts.idx];
1448         buf_priv = buf->dev_private;
1449
1450         if (buf->filp != filp) {
1451                 DRM_ERROR("process %d using buffer owned by %p\n",
1452                           DRM_CURRENTPID, buf->filp);
1453                 return DRM_ERR(EINVAL);
1454         }
1455         if (buf->pending) {
1456                 DRM_ERROR("sending pending buffer %d\n", elts.idx);
1457                 return DRM_ERR(EINVAL);
1458         }
1459
1460         count = (elts.end - elts.start) / sizeof(u16);
1461         elts.start -= R128_INDEX_PRIM_OFFSET;
1462
1463         if (elts.start & 0x7) {
1464                 DRM_ERROR("misaligned buffer 0x%x\n", elts.start);
1465                 return DRM_ERR(EINVAL);
1466         }
1467         if (elts.start < buf->used) {
1468                 DRM_ERROR("no header 0x%x - 0x%x\n", elts.start, buf->used);
1469                 return DRM_ERR(EINVAL);
1470         }
1471
1472         buf->used = elts.end;
1473         buf_priv->prim = elts.prim;
1474         buf_priv->discard = elts.discard;
1475
1476         r128_cce_dispatch_indices(dev, buf, elts.start, elts.end, count);
1477
1478         COMMIT_RING();
1479         return 0;
1480 }
1481
1482 static int r128_cce_blit(DRM_IOCTL_ARGS)
1483 {
1484         DRM_DEVICE;
1485         drm_device_dma_t *dma = dev->dma;
1486         drm_r128_private_t *dev_priv = dev->dev_private;
1487         drm_r128_blit_t blit;
1488         int ret;
1489
1490         LOCK_TEST_WITH_RETURN(dev, filp);
1491
1492         DRM_COPY_FROM_USER_IOCTL(blit, (drm_r128_blit_t __user *) data,
1493                                  sizeof(blit));
1494
1495         DRM_DEBUG("pid=%d index=%d\n", DRM_CURRENTPID, blit.idx);
1496
1497         if (blit.idx < 0 || blit.idx >= dma->buf_count) {
1498                 DRM_ERROR("buffer index %d (of %d max)\n",
1499                           blit.idx, dma->buf_count - 1);
1500                 return DRM_ERR(EINVAL);
1501         }
1502
1503         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1504         VB_AGE_TEST_WITH_RETURN(dev_priv);
1505
1506         ret = r128_cce_dispatch_blit(filp, dev, &blit);
1507
1508         COMMIT_RING();
1509         return ret;
1510 }
1511
1512 static int r128_cce_depth(DRM_IOCTL_ARGS)
1513 {
1514         DRM_DEVICE;
1515         drm_r128_private_t *dev_priv = dev->dev_private;
1516         drm_r128_depth_t depth;
1517         int ret;
1518
1519         LOCK_TEST_WITH_RETURN(dev, filp);
1520
1521         DRM_COPY_FROM_USER_IOCTL(depth, (drm_r128_depth_t __user *) data,
1522                                  sizeof(depth));
1523
1524         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1525
1526         ret = DRM_ERR(EINVAL);
1527         switch (depth.func) {
1528         case R128_WRITE_SPAN:
1529                 ret = r128_cce_dispatch_write_span(dev, &depth);
1530                 break;
1531         case R128_WRITE_PIXELS:
1532                 ret = r128_cce_dispatch_write_pixels(dev, &depth);
1533                 break;
1534         case R128_READ_SPAN:
1535                 ret = r128_cce_dispatch_read_span(dev, &depth);
1536                 break;
1537         case R128_READ_PIXELS:
1538                 ret = r128_cce_dispatch_read_pixels(dev, &depth);
1539                 break;
1540         }
1541
1542         COMMIT_RING();
1543         return ret;
1544 }
1545
1546 static int r128_cce_stipple(DRM_IOCTL_ARGS)
1547 {
1548         DRM_DEVICE;
1549         drm_r128_private_t *dev_priv = dev->dev_private;
1550         drm_r128_stipple_t stipple;
1551         u32 mask[32];
1552
1553         LOCK_TEST_WITH_RETURN(dev, filp);
1554
1555         DRM_COPY_FROM_USER_IOCTL(stipple, (drm_r128_stipple_t __user *) data,
1556                                  sizeof(stipple));
1557
1558         if (DRM_COPY_FROM_USER(&mask, stipple.mask, 32 * sizeof(u32)))
1559                 return DRM_ERR(EFAULT);
1560
1561         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1562
1563         r128_cce_dispatch_stipple(dev, mask);
1564
1565         COMMIT_RING();
1566         return 0;
1567 }
1568
1569 static int r128_cce_indirect(DRM_IOCTL_ARGS)
1570 {
1571         DRM_DEVICE;
1572         drm_r128_private_t *dev_priv = dev->dev_private;
1573         drm_device_dma_t *dma = dev->dma;
1574         drm_buf_t *buf;
1575         drm_r128_buf_priv_t *buf_priv;
1576         drm_r128_indirect_t indirect;
1577 #if 0
1578         RING_LOCALS;
1579 #endif
1580
1581         LOCK_TEST_WITH_RETURN(dev, filp);
1582
1583         if (!dev_priv) {
1584                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1585                 return DRM_ERR(EINVAL);
1586         }
1587
1588         DRM_COPY_FROM_USER_IOCTL(indirect, (drm_r128_indirect_t __user *) data,
1589                                  sizeof(indirect));
1590
1591         DRM_DEBUG("indirect: idx=%d s=%d e=%d d=%d\n",
1592                   indirect.idx, indirect.start, indirect.end, indirect.discard);
1593
1594         if (indirect.idx < 0 || indirect.idx >= dma->buf_count) {
1595                 DRM_ERROR("buffer index %d (of %d max)\n",
1596                           indirect.idx, dma->buf_count - 1);
1597                 return DRM_ERR(EINVAL);
1598         }
1599
1600         buf = dma->buflist[indirect.idx];
1601         buf_priv = buf->dev_private;
1602
1603         if (buf->filp != filp) {
1604                 DRM_ERROR("process %d using buffer owned by %p\n",
1605                           DRM_CURRENTPID, buf->filp);
1606                 return DRM_ERR(EINVAL);
1607         }
1608         if (buf->pending) {
1609                 DRM_ERROR("sending pending buffer %d\n", indirect.idx);
1610                 return DRM_ERR(EINVAL);
1611         }
1612
1613         if (indirect.start < buf->used) {
1614                 DRM_ERROR("reusing indirect: start=0x%x actual=0x%x\n",
1615                           indirect.start, buf->used);
1616                 return DRM_ERR(EINVAL);
1617         }
1618
1619         RING_SPACE_TEST_WITH_RETURN(dev_priv);
1620         VB_AGE_TEST_WITH_RETURN(dev_priv);
1621
1622         buf->used = indirect.end;
1623         buf_priv->discard = indirect.discard;
1624
1625 #if 0
1626         /* Wait for the 3D stream to idle before the indirect buffer
1627          * containing 2D acceleration commands is processed.
1628          */
1629         BEGIN_RING(2);
1630         RADEON_WAIT_UNTIL_3D_IDLE();
1631         ADVANCE_RING();
1632 #endif
1633
1634         /* Dispatch the indirect buffer full of commands from the
1635          * X server.  This is insecure and is thus only available to
1636          * privileged clients.
1637          */
1638         r128_cce_dispatch_indirect(dev, buf, indirect.start, indirect.end);
1639
1640         COMMIT_RING();
1641         return 0;
1642 }
1643
1644 static int r128_getparam(DRM_IOCTL_ARGS)
1645 {
1646         DRM_DEVICE;
1647         drm_r128_private_t *dev_priv = dev->dev_private;
1648         drm_r128_getparam_t param;
1649         int value;
1650
1651         if (!dev_priv) {
1652                 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1653                 return DRM_ERR(EINVAL);
1654         }
1655
1656         DRM_COPY_FROM_USER_IOCTL(param, (drm_r128_getparam_t __user *) data,
1657                                  sizeof(param));
1658
1659         DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1660
1661         switch (param.param) {
1662         case R128_PARAM_IRQ_NR:
1663                 value = dev->irq;
1664                 break;
1665         default:
1666                 return DRM_ERR(EINVAL);
1667         }
1668
1669         if (DRM_COPY_TO_USER(param.value, &value, sizeof(int))) {
1670                 DRM_ERROR("copy_to_user\n");
1671                 return DRM_ERR(EFAULT);
1672         }
1673
1674         return 0;
1675 }
1676
1677 void r128_driver_preclose(drm_device_t * dev, DRMFILE filp)
1678 {
1679         if (dev->dev_private) {
1680                 drm_r128_private_t *dev_priv = dev->dev_private;
1681                 if (dev_priv->page_flipping) {
1682                         r128_do_cleanup_pageflip(dev);
1683                 }
1684         }
1685 }
1686
1687 void r128_driver_lastclose(drm_device_t * dev)
1688 {
1689         r128_do_cleanup_cce(dev);
1690 }
1691
1692 drm_ioctl_desc_t r128_ioctls[] = {
1693         [DRM_IOCTL_NR(DRM_R128_INIT)] = {r128_cce_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1694         [DRM_IOCTL_NR(DRM_R128_CCE_START)] = {r128_cce_start, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1695         [DRM_IOCTL_NR(DRM_R128_CCE_STOP)] = {r128_cce_stop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1696         [DRM_IOCTL_NR(DRM_R128_CCE_RESET)] = {r128_cce_reset, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1697         [DRM_IOCTL_NR(DRM_R128_CCE_IDLE)] = {r128_cce_idle, DRM_AUTH},
1698         [DRM_IOCTL_NR(DRM_R128_RESET)] = {r128_engine_reset, DRM_AUTH},
1699         [DRM_IOCTL_NR(DRM_R128_FULLSCREEN)] = {r128_fullscreen, DRM_AUTH},
1700         [DRM_IOCTL_NR(DRM_R128_SWAP)] = {r128_cce_swap, DRM_AUTH},
1701         [DRM_IOCTL_NR(DRM_R128_FLIP)] = {r128_cce_flip, DRM_AUTH},
1702         [DRM_IOCTL_NR(DRM_R128_CLEAR)] = {r128_cce_clear, DRM_AUTH},
1703         [DRM_IOCTL_NR(DRM_R128_VERTEX)] = {r128_cce_vertex, DRM_AUTH},
1704         [DRM_IOCTL_NR(DRM_R128_INDICES)] = {r128_cce_indices, DRM_AUTH},
1705         [DRM_IOCTL_NR(DRM_R128_BLIT)] = {r128_cce_blit, DRM_AUTH},
1706         [DRM_IOCTL_NR(DRM_R128_DEPTH)] = {r128_cce_depth, DRM_AUTH},
1707         [DRM_IOCTL_NR(DRM_R128_STIPPLE)] = {r128_cce_stipple, DRM_AUTH},
1708         [DRM_IOCTL_NR(DRM_R128_INDIRECT)] = {r128_cce_indirect, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1709         [DRM_IOCTL_NR(DRM_R128_GETPARAM)] = {r128_getparam, DRM_AUTH},
1710 };
1711
1712 int r128_max_ioctl = DRM_ARRAY_SIZE(r128_ioctls);