xref: /openbmc/linux/drivers/gpu/drm/radeon/r200.c (revision 63dc02bd)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Jerome Glisse.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  *          Jerome Glisse
27  */
28 #include "drmP.h"
29 #include "drm.h"
30 #include "radeon_drm.h"
31 #include "radeon_reg.h"
32 #include "radeon.h"
33 #include "radeon_asic.h"
34 
35 #include "r100d.h"
36 #include "r200_reg_safe.h"
37 
38 #include "r100_track.h"
39 
40 static int r200_get_vtx_size_0(uint32_t vtx_fmt_0)
41 {
42 	int vtx_size, i;
43 	vtx_size = 2;
44 
45 	if (vtx_fmt_0 & R200_VTX_Z0)
46 		vtx_size++;
47 	if (vtx_fmt_0 & R200_VTX_W0)
48 		vtx_size++;
49 	/* blend weight */
50 	if (vtx_fmt_0 & (0x7 << R200_VTX_WEIGHT_COUNT_SHIFT))
51 		vtx_size += (vtx_fmt_0 >> R200_VTX_WEIGHT_COUNT_SHIFT) & 0x7;
52 	if (vtx_fmt_0 & R200_VTX_PV_MATRIX_SEL)
53 		vtx_size++;
54 	if (vtx_fmt_0 & R200_VTX_N0)
55 		vtx_size += 3;
56 	if (vtx_fmt_0 & R200_VTX_POINT_SIZE)
57 		vtx_size++;
58 	if (vtx_fmt_0 & R200_VTX_DISCRETE_FOG)
59 		vtx_size++;
60 	if (vtx_fmt_0 & R200_VTX_SHININESS_0)
61 		vtx_size++;
62 	if (vtx_fmt_0 & R200_VTX_SHININESS_1)
63 		vtx_size++;
64 	for (i = 0; i < 8; i++) {
65 		int color_size = (vtx_fmt_0 >> (11 + 2*i)) & 0x3;
66 		switch (color_size) {
67 		case 0: break;
68 		case 1: vtx_size++; break;
69 		case 2: vtx_size += 3; break;
70 		case 3: vtx_size += 4; break;
71 		}
72 	}
73 	if (vtx_fmt_0 & R200_VTX_XY1)
74 		vtx_size += 2;
75 	if (vtx_fmt_0 & R200_VTX_Z1)
76 		vtx_size++;
77 	if (vtx_fmt_0 & R200_VTX_W1)
78 		vtx_size++;
79 	if (vtx_fmt_0 & R200_VTX_N1)
80 		vtx_size += 3;
81 	return vtx_size;
82 }
83 
84 int r200_copy_dma(struct radeon_device *rdev,
85 		  uint64_t src_offset,
86 		  uint64_t dst_offset,
87 		  unsigned num_gpu_pages,
88 		  struct radeon_fence *fence)
89 {
90 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
91 	uint32_t size;
92 	uint32_t cur_size;
93 	int i, num_loops;
94 	int r = 0;
95 
96 	/* radeon pitch is /64 */
97 	size = num_gpu_pages << RADEON_GPU_PAGE_SHIFT;
98 	num_loops = DIV_ROUND_UP(size, 0x1FFFFF);
99 	r = radeon_ring_lock(rdev, ring, num_loops * 4 + 64);
100 	if (r) {
101 		DRM_ERROR("radeon: moving bo (%d).\n", r);
102 		return r;
103 	}
104 	/* Must wait for 2D idle & clean before DMA or hangs might happen */
105 	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
106 	radeon_ring_write(ring, (1 << 16));
107 	for (i = 0; i < num_loops; i++) {
108 		cur_size = size;
109 		if (cur_size > 0x1FFFFF) {
110 			cur_size = 0x1FFFFF;
111 		}
112 		size -= cur_size;
113 		radeon_ring_write(ring, PACKET0(0x720, 2));
114 		radeon_ring_write(ring, src_offset);
115 		radeon_ring_write(ring, dst_offset);
116 		radeon_ring_write(ring, cur_size | (1 << 31) | (1 << 30));
117 		src_offset += cur_size;
118 		dst_offset += cur_size;
119 	}
120 	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
121 	radeon_ring_write(ring, RADEON_WAIT_DMA_GUI_IDLE);
122 	if (fence) {
123 		r = radeon_fence_emit(rdev, fence);
124 	}
125 	radeon_ring_unlock_commit(rdev, ring);
126 	return r;
127 }
128 
129 
130 static int r200_get_vtx_size_1(uint32_t vtx_fmt_1)
131 {
132 	int vtx_size, i, tex_size;
133 	vtx_size = 0;
134 	for (i = 0; i < 6; i++) {
135 		tex_size = (vtx_fmt_1 >> (i * 3)) & 0x7;
136 		if (tex_size > 4)
137 			continue;
138 		vtx_size += tex_size;
139 	}
140 	return vtx_size;
141 }
142 
143 int r200_packet0_check(struct radeon_cs_parser *p,
144 		       struct radeon_cs_packet *pkt,
145 		       unsigned idx, unsigned reg)
146 {
147 	struct radeon_cs_reloc *reloc;
148 	struct r100_cs_track *track;
149 	volatile uint32_t *ib;
150 	uint32_t tmp;
151 	int r;
152 	int i;
153 	int face;
154 	u32 tile_flags = 0;
155 	u32 idx_value;
156 
157 	ib = p->ib->ptr;
158 	track = (struct r100_cs_track *)p->track;
159 	idx_value = radeon_get_ib_value(p, idx);
160 	switch (reg) {
161 	case RADEON_CRTC_GUI_TRIG_VLINE:
162 		r = r100_cs_packet_parse_vline(p);
163 		if (r) {
164 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
165 				  idx, reg);
166 			r100_cs_dump_packet(p, pkt);
167 			return r;
168 		}
169 		break;
170 		/* FIXME: only allow PACKET3 blit? easier to check for out of
171 		 * range access */
172 	case RADEON_DST_PITCH_OFFSET:
173 	case RADEON_SRC_PITCH_OFFSET:
174 		r = r100_reloc_pitch_offset(p, pkt, idx, reg);
175 		if (r)
176 			return r;
177 		break;
178 	case RADEON_RB3D_DEPTHOFFSET:
179 		r = r100_cs_packet_next_reloc(p, &reloc);
180 		if (r) {
181 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
182 				  idx, reg);
183 			r100_cs_dump_packet(p, pkt);
184 			return r;
185 		}
186 		track->zb.robj = reloc->robj;
187 		track->zb.offset = idx_value;
188 		track->zb_dirty = true;
189 		ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset);
190 		break;
191 	case RADEON_RB3D_COLOROFFSET:
192 		r = r100_cs_packet_next_reloc(p, &reloc);
193 		if (r) {
194 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
195 				  idx, reg);
196 			r100_cs_dump_packet(p, pkt);
197 			return r;
198 		}
199 		track->cb[0].robj = reloc->robj;
200 		track->cb[0].offset = idx_value;
201 		track->cb_dirty = true;
202 		ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset);
203 		break;
204 	case R200_PP_TXOFFSET_0:
205 	case R200_PP_TXOFFSET_1:
206 	case R200_PP_TXOFFSET_2:
207 	case R200_PP_TXOFFSET_3:
208 	case R200_PP_TXOFFSET_4:
209 	case R200_PP_TXOFFSET_5:
210 		i = (reg - R200_PP_TXOFFSET_0) / 24;
211 		r = r100_cs_packet_next_reloc(p, &reloc);
212 		if (r) {
213 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
214 				  idx, reg);
215 			r100_cs_dump_packet(p, pkt);
216 			return r;
217 		}
218 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
219 			if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
220 				tile_flags |= R200_TXO_MACRO_TILE;
221 			if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
222 				tile_flags |= R200_TXO_MICRO_TILE;
223 
224 			tmp = idx_value & ~(0x7 << 2);
225 			tmp |= tile_flags;
226 			ib[idx] = tmp + ((u32)reloc->lobj.gpu_offset);
227 		} else
228 			ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset);
229 		track->textures[i].robj = reloc->robj;
230 		track->tex_dirty = true;
231 		break;
232 	case R200_PP_CUBIC_OFFSET_F1_0:
233 	case R200_PP_CUBIC_OFFSET_F2_0:
234 	case R200_PP_CUBIC_OFFSET_F3_0:
235 	case R200_PP_CUBIC_OFFSET_F4_0:
236 	case R200_PP_CUBIC_OFFSET_F5_0:
237 	case R200_PP_CUBIC_OFFSET_F1_1:
238 	case R200_PP_CUBIC_OFFSET_F2_1:
239 	case R200_PP_CUBIC_OFFSET_F3_1:
240 	case R200_PP_CUBIC_OFFSET_F4_1:
241 	case R200_PP_CUBIC_OFFSET_F5_1:
242 	case R200_PP_CUBIC_OFFSET_F1_2:
243 	case R200_PP_CUBIC_OFFSET_F2_2:
244 	case R200_PP_CUBIC_OFFSET_F3_2:
245 	case R200_PP_CUBIC_OFFSET_F4_2:
246 	case R200_PP_CUBIC_OFFSET_F5_2:
247 	case R200_PP_CUBIC_OFFSET_F1_3:
248 	case R200_PP_CUBIC_OFFSET_F2_3:
249 	case R200_PP_CUBIC_OFFSET_F3_3:
250 	case R200_PP_CUBIC_OFFSET_F4_3:
251 	case R200_PP_CUBIC_OFFSET_F5_3:
252 	case R200_PP_CUBIC_OFFSET_F1_4:
253 	case R200_PP_CUBIC_OFFSET_F2_4:
254 	case R200_PP_CUBIC_OFFSET_F3_4:
255 	case R200_PP_CUBIC_OFFSET_F4_4:
256 	case R200_PP_CUBIC_OFFSET_F5_4:
257 	case R200_PP_CUBIC_OFFSET_F1_5:
258 	case R200_PP_CUBIC_OFFSET_F2_5:
259 	case R200_PP_CUBIC_OFFSET_F3_5:
260 	case R200_PP_CUBIC_OFFSET_F4_5:
261 	case R200_PP_CUBIC_OFFSET_F5_5:
262 		i = (reg - R200_PP_TXOFFSET_0) / 24;
263 		face = (reg - ((i * 24) + R200_PP_TXOFFSET_0)) / 4;
264 		r = r100_cs_packet_next_reloc(p, &reloc);
265 		if (r) {
266 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
267 				  idx, reg);
268 			r100_cs_dump_packet(p, pkt);
269 			return r;
270 		}
271 		track->textures[i].cube_info[face - 1].offset = idx_value;
272 		ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset);
273 		track->textures[i].cube_info[face - 1].robj = reloc->robj;
274 		track->tex_dirty = true;
275 		break;
276 	case RADEON_RE_WIDTH_HEIGHT:
277 		track->maxy = ((idx_value >> 16) & 0x7FF);
278 		track->cb_dirty = true;
279 		track->zb_dirty = true;
280 		break;
281 	case RADEON_RB3D_COLORPITCH:
282 		r = r100_cs_packet_next_reloc(p, &reloc);
283 		if (r) {
284 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
285 				  idx, reg);
286 			r100_cs_dump_packet(p, pkt);
287 			return r;
288 		}
289 
290 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
291 			if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
292 				tile_flags |= RADEON_COLOR_TILE_ENABLE;
293 			if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
294 				tile_flags |= RADEON_COLOR_MICROTILE_ENABLE;
295 
296 			tmp = idx_value & ~(0x7 << 16);
297 			tmp |= tile_flags;
298 			ib[idx] = tmp;
299 		} else
300 			ib[idx] = idx_value;
301 
302 		track->cb[0].pitch = idx_value & RADEON_COLORPITCH_MASK;
303 		track->cb_dirty = true;
304 		break;
305 	case RADEON_RB3D_DEPTHPITCH:
306 		track->zb.pitch = idx_value & RADEON_DEPTHPITCH_MASK;
307 		track->zb_dirty = true;
308 		break;
309 	case RADEON_RB3D_CNTL:
310 		switch ((idx_value >> RADEON_RB3D_COLOR_FORMAT_SHIFT) & 0x1f) {
311 		case 7:
312 		case 8:
313 		case 9:
314 		case 11:
315 		case 12:
316 			track->cb[0].cpp = 1;
317 			break;
318 		case 3:
319 		case 4:
320 		case 15:
321 			track->cb[0].cpp = 2;
322 			break;
323 		case 6:
324 			track->cb[0].cpp = 4;
325 			break;
326 		default:
327 			DRM_ERROR("Invalid color buffer format (%d) !\n",
328 				  ((idx_value >> RADEON_RB3D_COLOR_FORMAT_SHIFT) & 0x1f));
329 			return -EINVAL;
330 		}
331 		if (idx_value & RADEON_DEPTHXY_OFFSET_ENABLE) {
332 			DRM_ERROR("No support for depth xy offset in kms\n");
333 			return -EINVAL;
334 		}
335 
336 		track->z_enabled = !!(idx_value & RADEON_Z_ENABLE);
337 		track->cb_dirty = true;
338 		track->zb_dirty = true;
339 		break;
340 	case RADEON_RB3D_ZSTENCILCNTL:
341 		switch (idx_value & 0xf) {
342 		case 0:
343 			track->zb.cpp = 2;
344 			break;
345 		case 2:
346 		case 3:
347 		case 4:
348 		case 5:
349 		case 9:
350 		case 11:
351 			track->zb.cpp = 4;
352 			break;
353 		default:
354 			break;
355 		}
356 		track->zb_dirty = true;
357 		break;
358 	case RADEON_RB3D_ZPASS_ADDR:
359 		r = r100_cs_packet_next_reloc(p, &reloc);
360 		if (r) {
361 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
362 				  idx, reg);
363 			r100_cs_dump_packet(p, pkt);
364 			return r;
365 		}
366 		ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset);
367 		break;
368 	case RADEON_PP_CNTL:
369 		{
370 			uint32_t temp = idx_value >> 4;
371 			for (i = 0; i < track->num_texture; i++)
372 				track->textures[i].enabled = !!(temp & (1 << i));
373 			track->tex_dirty = true;
374 		}
375 		break;
376 	case RADEON_SE_VF_CNTL:
377 		track->vap_vf_cntl = idx_value;
378 		break;
379 	case 0x210c:
380 		/* VAP_VF_MAX_VTX_INDX */
381 		track->max_indx = idx_value & 0x00FFFFFFUL;
382 		break;
383 	case R200_SE_VTX_FMT_0:
384 		track->vtx_size = r200_get_vtx_size_0(idx_value);
385 		break;
386 	case R200_SE_VTX_FMT_1:
387 		track->vtx_size += r200_get_vtx_size_1(idx_value);
388 		break;
389 	case R200_PP_TXSIZE_0:
390 	case R200_PP_TXSIZE_1:
391 	case R200_PP_TXSIZE_2:
392 	case R200_PP_TXSIZE_3:
393 	case R200_PP_TXSIZE_4:
394 	case R200_PP_TXSIZE_5:
395 		i = (reg - R200_PP_TXSIZE_0) / 32;
396 		track->textures[i].width = (idx_value & RADEON_TEX_USIZE_MASK) + 1;
397 		track->textures[i].height = ((idx_value & RADEON_TEX_VSIZE_MASK) >> RADEON_TEX_VSIZE_SHIFT) + 1;
398 		track->tex_dirty = true;
399 		break;
400 	case R200_PP_TXPITCH_0:
401 	case R200_PP_TXPITCH_1:
402 	case R200_PP_TXPITCH_2:
403 	case R200_PP_TXPITCH_3:
404 	case R200_PP_TXPITCH_4:
405 	case R200_PP_TXPITCH_5:
406 		i = (reg - R200_PP_TXPITCH_0) / 32;
407 		track->textures[i].pitch = idx_value + 32;
408 		track->tex_dirty = true;
409 		break;
410 	case R200_PP_TXFILTER_0:
411 	case R200_PP_TXFILTER_1:
412 	case R200_PP_TXFILTER_2:
413 	case R200_PP_TXFILTER_3:
414 	case R200_PP_TXFILTER_4:
415 	case R200_PP_TXFILTER_5:
416 		i = (reg - R200_PP_TXFILTER_0) / 32;
417 		track->textures[i].num_levels = ((idx_value & R200_MAX_MIP_LEVEL_MASK)
418 						 >> R200_MAX_MIP_LEVEL_SHIFT);
419 		tmp = (idx_value >> 23) & 0x7;
420 		if (tmp == 2 || tmp == 6)
421 			track->textures[i].roundup_w = false;
422 		tmp = (idx_value >> 27) & 0x7;
423 		if (tmp == 2 || tmp == 6)
424 			track->textures[i].roundup_h = false;
425 		track->tex_dirty = true;
426 		break;
427 	case R200_PP_TXMULTI_CTL_0:
428 	case R200_PP_TXMULTI_CTL_1:
429 	case R200_PP_TXMULTI_CTL_2:
430 	case R200_PP_TXMULTI_CTL_3:
431 	case R200_PP_TXMULTI_CTL_4:
432 	case R200_PP_TXMULTI_CTL_5:
433 		i = (reg - R200_PP_TXMULTI_CTL_0) / 32;
434 		break;
435 	case R200_PP_TXFORMAT_X_0:
436 	case R200_PP_TXFORMAT_X_1:
437 	case R200_PP_TXFORMAT_X_2:
438 	case R200_PP_TXFORMAT_X_3:
439 	case R200_PP_TXFORMAT_X_4:
440 	case R200_PP_TXFORMAT_X_5:
441 		i = (reg - R200_PP_TXFORMAT_X_0) / 32;
442 		track->textures[i].txdepth = idx_value & 0x7;
443 		tmp = (idx_value >> 16) & 0x3;
444 		/* 2D, 3D, CUBE */
445 		switch (tmp) {
446 		case 0:
447 		case 3:
448 		case 4:
449 		case 5:
450 		case 6:
451 		case 7:
452 			/* 1D/2D */
453 			track->textures[i].tex_coord_type = 0;
454 			break;
455 		case 1:
456 			/* CUBE */
457 			track->textures[i].tex_coord_type = 2;
458 			break;
459 		case 2:
460 			/* 3D */
461 			track->textures[i].tex_coord_type = 1;
462 			break;
463 		}
464 		track->tex_dirty = true;
465 		break;
466 	case R200_PP_TXFORMAT_0:
467 	case R200_PP_TXFORMAT_1:
468 	case R200_PP_TXFORMAT_2:
469 	case R200_PP_TXFORMAT_3:
470 	case R200_PP_TXFORMAT_4:
471 	case R200_PP_TXFORMAT_5:
472 		i = (reg - R200_PP_TXFORMAT_0) / 32;
473 		if (idx_value & R200_TXFORMAT_NON_POWER2) {
474 			track->textures[i].use_pitch = 1;
475 		} else {
476 			track->textures[i].use_pitch = 0;
477 			track->textures[i].width = 1 << ((idx_value >> RADEON_TXFORMAT_WIDTH_SHIFT) & RADEON_TXFORMAT_WIDTH_MASK);
478 			track->textures[i].height = 1 << ((idx_value >> RADEON_TXFORMAT_HEIGHT_SHIFT) & RADEON_TXFORMAT_HEIGHT_MASK);
479 		}
480 		if (idx_value & R200_TXFORMAT_LOOKUP_DISABLE)
481 			track->textures[i].lookup_disable = true;
482 		switch ((idx_value & RADEON_TXFORMAT_FORMAT_MASK)) {
483 		case R200_TXFORMAT_I8:
484 		case R200_TXFORMAT_RGB332:
485 		case R200_TXFORMAT_Y8:
486 			track->textures[i].cpp = 1;
487 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
488 			break;
489 		case R200_TXFORMAT_AI88:
490 		case R200_TXFORMAT_ARGB1555:
491 		case R200_TXFORMAT_RGB565:
492 		case R200_TXFORMAT_ARGB4444:
493 		case R200_TXFORMAT_VYUY422:
494 		case R200_TXFORMAT_YVYU422:
495 		case R200_TXFORMAT_LDVDU655:
496 		case R200_TXFORMAT_DVDU88:
497 		case R200_TXFORMAT_AVYU4444:
498 			track->textures[i].cpp = 2;
499 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
500 			break;
501 		case R200_TXFORMAT_ARGB8888:
502 		case R200_TXFORMAT_RGBA8888:
503 		case R200_TXFORMAT_ABGR8888:
504 		case R200_TXFORMAT_BGR111110:
505 		case R200_TXFORMAT_LDVDU8888:
506 			track->textures[i].cpp = 4;
507 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
508 			break;
509 		case R200_TXFORMAT_DXT1:
510 			track->textures[i].cpp = 1;
511 			track->textures[i].compress_format = R100_TRACK_COMP_DXT1;
512 			break;
513 		case R200_TXFORMAT_DXT23:
514 		case R200_TXFORMAT_DXT45:
515 			track->textures[i].cpp = 1;
516 			track->textures[i].compress_format = R100_TRACK_COMP_DXT1;
517 			break;
518 		}
519 		track->textures[i].cube_info[4].width = 1 << ((idx_value >> 16) & 0xf);
520 		track->textures[i].cube_info[4].height = 1 << ((idx_value >> 20) & 0xf);
521 		track->tex_dirty = true;
522 		break;
523 	case R200_PP_CUBIC_FACES_0:
524 	case R200_PP_CUBIC_FACES_1:
525 	case R200_PP_CUBIC_FACES_2:
526 	case R200_PP_CUBIC_FACES_3:
527 	case R200_PP_CUBIC_FACES_4:
528 	case R200_PP_CUBIC_FACES_5:
529 		tmp = idx_value;
530 		i = (reg - R200_PP_CUBIC_FACES_0) / 32;
531 		for (face = 0; face < 4; face++) {
532 			track->textures[i].cube_info[face].width = 1 << ((tmp >> (face * 8)) & 0xf);
533 			track->textures[i].cube_info[face].height = 1 << ((tmp >> ((face * 8) + 4)) & 0xf);
534 		}
535 		track->tex_dirty = true;
536 		break;
537 	default:
538 		printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
539 		       reg, idx);
540 		return -EINVAL;
541 	}
542 	return 0;
543 }
544 
545 void r200_set_safe_registers(struct radeon_device *rdev)
546 {
547 	rdev->config.r100.reg_safe_bm = r200_reg_safe_bm;
548 	rdev->config.r100.reg_safe_bm_size = ARRAY_SIZE(r200_reg_safe_bm);
549 }
550