xref: /linux/drivers/gpu/drm/radeon/evergreen_cs.c (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * Copyright 2010 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 <drm/drmP.h>
29 #include "radeon.h"
30 #include "evergreend.h"
31 #include "evergreen_reg_safe.h"
32 #include "cayman_reg_safe.h"
33 
34 #define MAX(a,b)                   (((a)>(b))?(a):(b))
35 #define MIN(a,b)                   (((a)<(b))?(a):(b))
36 
37 int r600_dma_cs_next_reloc(struct radeon_cs_parser *p,
38 			   struct radeon_bo_list **cs_reloc);
39 struct evergreen_cs_track {
40 	u32			group_size;
41 	u32			nbanks;
42 	u32			npipes;
43 	u32			row_size;
44 	/* value we track */
45 	u32			nsamples;		/* unused */
46 	struct radeon_bo	*cb_color_bo[12];
47 	u32			cb_color_bo_offset[12];
48 	struct radeon_bo	*cb_color_fmask_bo[8];	/* unused */
49 	struct radeon_bo	*cb_color_cmask_bo[8];	/* unused */
50 	u32			cb_color_info[12];
51 	u32			cb_color_view[12];
52 	u32			cb_color_pitch[12];
53 	u32			cb_color_slice[12];
54 	u32			cb_color_slice_idx[12];
55 	u32			cb_color_attrib[12];
56 	u32			cb_color_cmask_slice[8];/* unused */
57 	u32			cb_color_fmask_slice[8];/* unused */
58 	u32			cb_target_mask;
59 	u32			cb_shader_mask; /* unused */
60 	u32			vgt_strmout_config;
61 	u32			vgt_strmout_buffer_config;
62 	struct radeon_bo	*vgt_strmout_bo[4];
63 	u32			vgt_strmout_bo_offset[4];
64 	u32			vgt_strmout_size[4];
65 	u32			db_depth_control;
66 	u32			db_depth_view;
67 	u32			db_depth_slice;
68 	u32			db_depth_size;
69 	u32			db_z_info;
70 	u32			db_z_read_offset;
71 	u32			db_z_write_offset;
72 	struct radeon_bo	*db_z_read_bo;
73 	struct radeon_bo	*db_z_write_bo;
74 	u32			db_s_info;
75 	u32			db_s_read_offset;
76 	u32			db_s_write_offset;
77 	struct radeon_bo	*db_s_read_bo;
78 	struct radeon_bo	*db_s_write_bo;
79 	bool			sx_misc_kill_all_prims;
80 	bool			cb_dirty;
81 	bool			db_dirty;
82 	bool			streamout_dirty;
83 	u32			htile_offset;
84 	u32			htile_surface;
85 	struct radeon_bo	*htile_bo;
86 	unsigned long		indirect_draw_buffer_size;
87 };
88 
89 static u32 evergreen_cs_get_aray_mode(u32 tiling_flags)
90 {
91 	if (tiling_flags & RADEON_TILING_MACRO)
92 		return ARRAY_2D_TILED_THIN1;
93 	else if (tiling_flags & RADEON_TILING_MICRO)
94 		return ARRAY_1D_TILED_THIN1;
95 	else
96 		return ARRAY_LINEAR_GENERAL;
97 }
98 
99 static u32 evergreen_cs_get_num_banks(u32 nbanks)
100 {
101 	switch (nbanks) {
102 	case 2:
103 		return ADDR_SURF_2_BANK;
104 	case 4:
105 		return ADDR_SURF_4_BANK;
106 	case 8:
107 	default:
108 		return ADDR_SURF_8_BANK;
109 	case 16:
110 		return ADDR_SURF_16_BANK;
111 	}
112 }
113 
114 static void evergreen_cs_track_init(struct evergreen_cs_track *track)
115 {
116 	int i;
117 
118 	for (i = 0; i < 8; i++) {
119 		track->cb_color_fmask_bo[i] = NULL;
120 		track->cb_color_cmask_bo[i] = NULL;
121 		track->cb_color_cmask_slice[i] = 0;
122 		track->cb_color_fmask_slice[i] = 0;
123 	}
124 
125 	for (i = 0; i < 12; i++) {
126 		track->cb_color_bo[i] = NULL;
127 		track->cb_color_bo_offset[i] = 0xFFFFFFFF;
128 		track->cb_color_info[i] = 0;
129 		track->cb_color_view[i] = 0xFFFFFFFF;
130 		track->cb_color_pitch[i] = 0;
131 		track->cb_color_slice[i] = 0xfffffff;
132 		track->cb_color_slice_idx[i] = 0;
133 	}
134 	track->cb_target_mask = 0xFFFFFFFF;
135 	track->cb_shader_mask = 0xFFFFFFFF;
136 	track->cb_dirty = true;
137 
138 	track->db_depth_slice = 0xffffffff;
139 	track->db_depth_view = 0xFFFFC000;
140 	track->db_depth_size = 0xFFFFFFFF;
141 	track->db_depth_control = 0xFFFFFFFF;
142 	track->db_z_info = 0xFFFFFFFF;
143 	track->db_z_read_offset = 0xFFFFFFFF;
144 	track->db_z_write_offset = 0xFFFFFFFF;
145 	track->db_z_read_bo = NULL;
146 	track->db_z_write_bo = NULL;
147 	track->db_s_info = 0xFFFFFFFF;
148 	track->db_s_read_offset = 0xFFFFFFFF;
149 	track->db_s_write_offset = 0xFFFFFFFF;
150 	track->db_s_read_bo = NULL;
151 	track->db_s_write_bo = NULL;
152 	track->db_dirty = true;
153 	track->htile_bo = NULL;
154 	track->htile_offset = 0xFFFFFFFF;
155 	track->htile_surface = 0;
156 
157 	for (i = 0; i < 4; i++) {
158 		track->vgt_strmout_size[i] = 0;
159 		track->vgt_strmout_bo[i] = NULL;
160 		track->vgt_strmout_bo_offset[i] = 0xFFFFFFFF;
161 	}
162 	track->streamout_dirty = true;
163 	track->sx_misc_kill_all_prims = false;
164 }
165 
166 struct eg_surface {
167 	/* value gathered from cs */
168 	unsigned	nbx;
169 	unsigned	nby;
170 	unsigned	format;
171 	unsigned	mode;
172 	unsigned	nbanks;
173 	unsigned	bankw;
174 	unsigned	bankh;
175 	unsigned	tsplit;
176 	unsigned	mtilea;
177 	unsigned	nsamples;
178 	/* output value */
179 	unsigned	bpe;
180 	unsigned	layer_size;
181 	unsigned	palign;
182 	unsigned	halign;
183 	unsigned long	base_align;
184 };
185 
186 static int evergreen_surface_check_linear(struct radeon_cs_parser *p,
187 					  struct eg_surface *surf,
188 					  const char *prefix)
189 {
190 	surf->layer_size = surf->nbx * surf->nby * surf->bpe * surf->nsamples;
191 	surf->base_align = surf->bpe;
192 	surf->palign = 1;
193 	surf->halign = 1;
194 	return 0;
195 }
196 
197 static int evergreen_surface_check_linear_aligned(struct radeon_cs_parser *p,
198 						  struct eg_surface *surf,
199 						  const char *prefix)
200 {
201 	struct evergreen_cs_track *track = p->track;
202 	unsigned palign;
203 
204 	palign = MAX(64, track->group_size / surf->bpe);
205 	surf->layer_size = surf->nbx * surf->nby * surf->bpe * surf->nsamples;
206 	surf->base_align = track->group_size;
207 	surf->palign = palign;
208 	surf->halign = 1;
209 	if (surf->nbx & (palign - 1)) {
210 		if (prefix) {
211 			dev_warn(p->dev, "%s:%d %s pitch %d invalid must be aligned with %d\n",
212 				 __func__, __LINE__, prefix, surf->nbx, palign);
213 		}
214 		return -EINVAL;
215 	}
216 	return 0;
217 }
218 
219 static int evergreen_surface_check_1d(struct radeon_cs_parser *p,
220 				      struct eg_surface *surf,
221 				      const char *prefix)
222 {
223 	struct evergreen_cs_track *track = p->track;
224 	unsigned palign;
225 
226 	palign = track->group_size / (8 * surf->bpe * surf->nsamples);
227 	palign = MAX(8, palign);
228 	surf->layer_size = surf->nbx * surf->nby * surf->bpe;
229 	surf->base_align = track->group_size;
230 	surf->palign = palign;
231 	surf->halign = 8;
232 	if ((surf->nbx & (palign - 1))) {
233 		if (prefix) {
234 			dev_warn(p->dev, "%s:%d %s pitch %d invalid must be aligned with %d (%d %d %d)\n",
235 				 __func__, __LINE__, prefix, surf->nbx, palign,
236 				 track->group_size, surf->bpe, surf->nsamples);
237 		}
238 		return -EINVAL;
239 	}
240 	if ((surf->nby & (8 - 1))) {
241 		if (prefix) {
242 			dev_warn(p->dev, "%s:%d %s height %d invalid must be aligned with 8\n",
243 				 __func__, __LINE__, prefix, surf->nby);
244 		}
245 		return -EINVAL;
246 	}
247 	return 0;
248 }
249 
250 static int evergreen_surface_check_2d(struct radeon_cs_parser *p,
251 				      struct eg_surface *surf,
252 				      const char *prefix)
253 {
254 	struct evergreen_cs_track *track = p->track;
255 	unsigned palign, halign, tileb, slice_pt;
256 	unsigned mtile_pr, mtile_ps, mtileb;
257 
258 	tileb = 64 * surf->bpe * surf->nsamples;
259 	slice_pt = 1;
260 	if (tileb > surf->tsplit) {
261 		slice_pt = tileb / surf->tsplit;
262 	}
263 	tileb = tileb / slice_pt;
264 	/* macro tile width & height */
265 	palign = (8 * surf->bankw * track->npipes) * surf->mtilea;
266 	halign = (8 * surf->bankh * surf->nbanks) / surf->mtilea;
267 	mtileb = (palign / 8) * (halign / 8) * tileb;
268 	mtile_pr = surf->nbx / palign;
269 	mtile_ps = (mtile_pr * surf->nby) / halign;
270 	surf->layer_size = mtile_ps * mtileb * slice_pt;
271 	surf->base_align = (palign / 8) * (halign / 8) * tileb;
272 	surf->palign = palign;
273 	surf->halign = halign;
274 
275 	if ((surf->nbx & (palign - 1))) {
276 		if (prefix) {
277 			dev_warn(p->dev, "%s:%d %s pitch %d invalid must be aligned with %d\n",
278 				 __func__, __LINE__, prefix, surf->nbx, palign);
279 		}
280 		return -EINVAL;
281 	}
282 	if ((surf->nby & (halign - 1))) {
283 		if (prefix) {
284 			dev_warn(p->dev, "%s:%d %s height %d invalid must be aligned with %d\n",
285 				 __func__, __LINE__, prefix, surf->nby, halign);
286 		}
287 		return -EINVAL;
288 	}
289 
290 	return 0;
291 }
292 
293 static int evergreen_surface_check(struct radeon_cs_parser *p,
294 				   struct eg_surface *surf,
295 				   const char *prefix)
296 {
297 	/* some common value computed here */
298 	surf->bpe = r600_fmt_get_blocksize(surf->format);
299 
300 	switch (surf->mode) {
301 	case ARRAY_LINEAR_GENERAL:
302 		return evergreen_surface_check_linear(p, surf, prefix);
303 	case ARRAY_LINEAR_ALIGNED:
304 		return evergreen_surface_check_linear_aligned(p, surf, prefix);
305 	case ARRAY_1D_TILED_THIN1:
306 		return evergreen_surface_check_1d(p, surf, prefix);
307 	case ARRAY_2D_TILED_THIN1:
308 		return evergreen_surface_check_2d(p, surf, prefix);
309 	default:
310 		dev_warn(p->dev, "%s:%d %s invalid array mode %d\n",
311 				__func__, __LINE__, prefix, surf->mode);
312 		return -EINVAL;
313 	}
314 	return -EINVAL;
315 }
316 
317 static int evergreen_surface_value_conv_check(struct radeon_cs_parser *p,
318 					      struct eg_surface *surf,
319 					      const char *prefix)
320 {
321 	switch (surf->mode) {
322 	case ARRAY_2D_TILED_THIN1:
323 		break;
324 	case ARRAY_LINEAR_GENERAL:
325 	case ARRAY_LINEAR_ALIGNED:
326 	case ARRAY_1D_TILED_THIN1:
327 		return 0;
328 	default:
329 		dev_warn(p->dev, "%s:%d %s invalid array mode %d\n",
330 				__func__, __LINE__, prefix, surf->mode);
331 		return -EINVAL;
332 	}
333 
334 	switch (surf->nbanks) {
335 	case 0: surf->nbanks = 2; break;
336 	case 1: surf->nbanks = 4; break;
337 	case 2: surf->nbanks = 8; break;
338 	case 3: surf->nbanks = 16; break;
339 	default:
340 		dev_warn(p->dev, "%s:%d %s invalid number of banks %d\n",
341 			 __func__, __LINE__, prefix, surf->nbanks);
342 		return -EINVAL;
343 	}
344 	switch (surf->bankw) {
345 	case 0: surf->bankw = 1; break;
346 	case 1: surf->bankw = 2; break;
347 	case 2: surf->bankw = 4; break;
348 	case 3: surf->bankw = 8; break;
349 	default:
350 		dev_warn(p->dev, "%s:%d %s invalid bankw %d\n",
351 			 __func__, __LINE__, prefix, surf->bankw);
352 		return -EINVAL;
353 	}
354 	switch (surf->bankh) {
355 	case 0: surf->bankh = 1; break;
356 	case 1: surf->bankh = 2; break;
357 	case 2: surf->bankh = 4; break;
358 	case 3: surf->bankh = 8; break;
359 	default:
360 		dev_warn(p->dev, "%s:%d %s invalid bankh %d\n",
361 			 __func__, __LINE__, prefix, surf->bankh);
362 		return -EINVAL;
363 	}
364 	switch (surf->mtilea) {
365 	case 0: surf->mtilea = 1; break;
366 	case 1: surf->mtilea = 2; break;
367 	case 2: surf->mtilea = 4; break;
368 	case 3: surf->mtilea = 8; break;
369 	default:
370 		dev_warn(p->dev, "%s:%d %s invalid macro tile aspect %d\n",
371 			 __func__, __LINE__, prefix, surf->mtilea);
372 		return -EINVAL;
373 	}
374 	switch (surf->tsplit) {
375 	case 0: surf->tsplit = 64; break;
376 	case 1: surf->tsplit = 128; break;
377 	case 2: surf->tsplit = 256; break;
378 	case 3: surf->tsplit = 512; break;
379 	case 4: surf->tsplit = 1024; break;
380 	case 5: surf->tsplit = 2048; break;
381 	case 6: surf->tsplit = 4096; break;
382 	default:
383 		dev_warn(p->dev, "%s:%d %s invalid tile split %d\n",
384 			 __func__, __LINE__, prefix, surf->tsplit);
385 		return -EINVAL;
386 	}
387 	return 0;
388 }
389 
390 static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned id)
391 {
392 	struct evergreen_cs_track *track = p->track;
393 	struct eg_surface surf;
394 	unsigned pitch, slice, mslice;
395 	unsigned long offset;
396 	int r;
397 
398 	mslice = G_028C6C_SLICE_MAX(track->cb_color_view[id]) + 1;
399 	pitch = track->cb_color_pitch[id];
400 	slice = track->cb_color_slice[id];
401 	surf.nbx = (pitch + 1) * 8;
402 	surf.nby = ((slice + 1) * 64) / surf.nbx;
403 	surf.mode = G_028C70_ARRAY_MODE(track->cb_color_info[id]);
404 	surf.format = G_028C70_FORMAT(track->cb_color_info[id]);
405 	surf.tsplit = G_028C74_TILE_SPLIT(track->cb_color_attrib[id]);
406 	surf.nbanks = G_028C74_NUM_BANKS(track->cb_color_attrib[id]);
407 	surf.bankw = G_028C74_BANK_WIDTH(track->cb_color_attrib[id]);
408 	surf.bankh = G_028C74_BANK_HEIGHT(track->cb_color_attrib[id]);
409 	surf.mtilea = G_028C74_MACRO_TILE_ASPECT(track->cb_color_attrib[id]);
410 	surf.nsamples = 1;
411 
412 	if (!r600_fmt_is_valid_color(surf.format)) {
413 		dev_warn(p->dev, "%s:%d cb invalid format %d for %d (0x%08x)\n",
414 			 __func__, __LINE__, surf.format,
415 			id, track->cb_color_info[id]);
416 		return -EINVAL;
417 	}
418 
419 	r = evergreen_surface_value_conv_check(p, &surf, "cb");
420 	if (r) {
421 		return r;
422 	}
423 
424 	r = evergreen_surface_check(p, &surf, "cb");
425 	if (r) {
426 		dev_warn(p->dev, "%s:%d cb[%d] invalid (0x%08x 0x%08x 0x%08x 0x%08x)\n",
427 			 __func__, __LINE__, id, track->cb_color_pitch[id],
428 			 track->cb_color_slice[id], track->cb_color_attrib[id],
429 			 track->cb_color_info[id]);
430 		return r;
431 	}
432 
433 	offset = track->cb_color_bo_offset[id] << 8;
434 	if (offset & (surf.base_align - 1)) {
435 		dev_warn(p->dev, "%s:%d cb[%d] bo base %ld not aligned with %ld\n",
436 			 __func__, __LINE__, id, offset, surf.base_align);
437 		return -EINVAL;
438 	}
439 
440 	offset += surf.layer_size * mslice;
441 	if (offset > radeon_bo_size(track->cb_color_bo[id])) {
442 		/* old ddx are broken they allocate bo with w*h*bpp but
443 		 * program slice with ALIGN(h, 8), catch this and patch
444 		 * command stream.
445 		 */
446 		if (!surf.mode) {
447 			volatile u32 *ib = p->ib.ptr;
448 			unsigned long tmp, nby, bsize, size, min = 0;
449 
450 			/* find the height the ddx wants */
451 			if (surf.nby > 8) {
452 				min = surf.nby - 8;
453 			}
454 			bsize = radeon_bo_size(track->cb_color_bo[id]);
455 			tmp = track->cb_color_bo_offset[id] << 8;
456 			for (nby = surf.nby; nby > min; nby--) {
457 				size = nby * surf.nbx * surf.bpe * surf.nsamples;
458 				if ((tmp + size * mslice) <= bsize) {
459 					break;
460 				}
461 			}
462 			if (nby > min) {
463 				surf.nby = nby;
464 				slice = ((nby * surf.nbx) / 64) - 1;
465 				if (!evergreen_surface_check(p, &surf, "cb")) {
466 					/* check if this one works */
467 					tmp += surf.layer_size * mslice;
468 					if (tmp <= bsize) {
469 						ib[track->cb_color_slice_idx[id]] = slice;
470 						goto old_ddx_ok;
471 					}
472 				}
473 			}
474 		}
475 		dev_warn(p->dev, "%s:%d cb[%d] bo too small (layer size %d, "
476 			 "offset %d, max layer %d, bo size %ld, slice %d)\n",
477 			 __func__, __LINE__, id, surf.layer_size,
478 			track->cb_color_bo_offset[id] << 8, mslice,
479 			radeon_bo_size(track->cb_color_bo[id]), slice);
480 		dev_warn(p->dev, "%s:%d problematic surf: (%d %d) (%d %d %d %d %d %d %d)\n",
481 			 __func__, __LINE__, surf.nbx, surf.nby,
482 			surf.mode, surf.bpe, surf.nsamples,
483 			surf.bankw, surf.bankh,
484 			surf.tsplit, surf.mtilea);
485 		return -EINVAL;
486 	}
487 old_ddx_ok:
488 
489 	return 0;
490 }
491 
492 static int evergreen_cs_track_validate_htile(struct radeon_cs_parser *p,
493 						unsigned nbx, unsigned nby)
494 {
495 	struct evergreen_cs_track *track = p->track;
496 	unsigned long size;
497 
498 	if (track->htile_bo == NULL) {
499 		dev_warn(p->dev, "%s:%d htile enabled without htile surface 0x%08x\n",
500 				__func__, __LINE__, track->db_z_info);
501 		return -EINVAL;
502 	}
503 
504 	if (G_028ABC_LINEAR(track->htile_surface)) {
505 		/* pitch must be 16 htiles aligned == 16 * 8 pixel aligned */
506 		nbx = round_up(nbx, 16 * 8);
507 		/* height is npipes htiles aligned == npipes * 8 pixel aligned */
508 		nby = round_up(nby, track->npipes * 8);
509 	} else {
510 		/* always assume 8x8 htile */
511 		/* align is htile align * 8, htile align vary according to
512 		 * number of pipe and tile width and nby
513 		 */
514 		switch (track->npipes) {
515 		case 8:
516 			/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
517 			nbx = round_up(nbx, 64 * 8);
518 			nby = round_up(nby, 64 * 8);
519 			break;
520 		case 4:
521 			/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
522 			nbx = round_up(nbx, 64 * 8);
523 			nby = round_up(nby, 32 * 8);
524 			break;
525 		case 2:
526 			/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
527 			nbx = round_up(nbx, 32 * 8);
528 			nby = round_up(nby, 32 * 8);
529 			break;
530 		case 1:
531 			/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
532 			nbx = round_up(nbx, 32 * 8);
533 			nby = round_up(nby, 16 * 8);
534 			break;
535 		default:
536 			dev_warn(p->dev, "%s:%d invalid num pipes %d\n",
537 					__func__, __LINE__, track->npipes);
538 			return -EINVAL;
539 		}
540 	}
541 	/* compute number of htile */
542 	nbx = nbx >> 3;
543 	nby = nby >> 3;
544 	/* size must be aligned on npipes * 2K boundary */
545 	size = roundup(nbx * nby * 4, track->npipes * (2 << 10));
546 	size += track->htile_offset;
547 
548 	if (size > radeon_bo_size(track->htile_bo)) {
549 		dev_warn(p->dev, "%s:%d htile surface too small %ld for %ld (%d %d)\n",
550 				__func__, __LINE__, radeon_bo_size(track->htile_bo),
551 				size, nbx, nby);
552 		return -EINVAL;
553 	}
554 	return 0;
555 }
556 
557 static int evergreen_cs_track_validate_stencil(struct radeon_cs_parser *p)
558 {
559 	struct evergreen_cs_track *track = p->track;
560 	struct eg_surface surf;
561 	unsigned pitch, slice, mslice;
562 	unsigned long offset;
563 	int r;
564 
565 	mslice = G_028008_SLICE_MAX(track->db_depth_view) + 1;
566 	pitch = G_028058_PITCH_TILE_MAX(track->db_depth_size);
567 	slice = track->db_depth_slice;
568 	surf.nbx = (pitch + 1) * 8;
569 	surf.nby = ((slice + 1) * 64) / surf.nbx;
570 	surf.mode = G_028040_ARRAY_MODE(track->db_z_info);
571 	surf.format = G_028044_FORMAT(track->db_s_info);
572 	surf.tsplit = G_028044_TILE_SPLIT(track->db_s_info);
573 	surf.nbanks = G_028040_NUM_BANKS(track->db_z_info);
574 	surf.bankw = G_028040_BANK_WIDTH(track->db_z_info);
575 	surf.bankh = G_028040_BANK_HEIGHT(track->db_z_info);
576 	surf.mtilea = G_028040_MACRO_TILE_ASPECT(track->db_z_info);
577 	surf.nsamples = 1;
578 
579 	if (surf.format != 1) {
580 		dev_warn(p->dev, "%s:%d stencil invalid format %d\n",
581 			 __func__, __LINE__, surf.format);
582 		return -EINVAL;
583 	}
584 	/* replace by color format so we can use same code */
585 	surf.format = V_028C70_COLOR_8;
586 
587 	r = evergreen_surface_value_conv_check(p, &surf, "stencil");
588 	if (r) {
589 		return r;
590 	}
591 
592 	r = evergreen_surface_check(p, &surf, NULL);
593 	if (r) {
594 		/* old userspace doesn't compute proper depth/stencil alignment
595 		 * check that alignment against a bigger byte per elements and
596 		 * only report if that alignment is wrong too.
597 		 */
598 		surf.format = V_028C70_COLOR_8_8_8_8;
599 		r = evergreen_surface_check(p, &surf, "stencil");
600 		if (r) {
601 			dev_warn(p->dev, "%s:%d stencil invalid (0x%08x 0x%08x 0x%08x 0x%08x)\n",
602 				 __func__, __LINE__, track->db_depth_size,
603 				 track->db_depth_slice, track->db_s_info, track->db_z_info);
604 		}
605 		return r;
606 	}
607 
608 	offset = track->db_s_read_offset << 8;
609 	if (offset & (surf.base_align - 1)) {
610 		dev_warn(p->dev, "%s:%d stencil read bo base %ld not aligned with %ld\n",
611 			 __func__, __LINE__, offset, surf.base_align);
612 		return -EINVAL;
613 	}
614 	offset += surf.layer_size * mslice;
615 	if (offset > radeon_bo_size(track->db_s_read_bo)) {
616 		dev_warn(p->dev, "%s:%d stencil read bo too small (layer size %d, "
617 			 "offset %ld, max layer %d, bo size %ld)\n",
618 			 __func__, __LINE__, surf.layer_size,
619 			(unsigned long)track->db_s_read_offset << 8, mslice,
620 			radeon_bo_size(track->db_s_read_bo));
621 		dev_warn(p->dev, "%s:%d stencil invalid (0x%08x 0x%08x 0x%08x 0x%08x)\n",
622 			 __func__, __LINE__, track->db_depth_size,
623 			 track->db_depth_slice, track->db_s_info, track->db_z_info);
624 		return -EINVAL;
625 	}
626 
627 	offset = track->db_s_write_offset << 8;
628 	if (offset & (surf.base_align - 1)) {
629 		dev_warn(p->dev, "%s:%d stencil write bo base %ld not aligned with %ld\n",
630 			 __func__, __LINE__, offset, surf.base_align);
631 		return -EINVAL;
632 	}
633 	offset += surf.layer_size * mslice;
634 	if (offset > radeon_bo_size(track->db_s_write_bo)) {
635 		dev_warn(p->dev, "%s:%d stencil write bo too small (layer size %d, "
636 			 "offset %ld, max layer %d, bo size %ld)\n",
637 			 __func__, __LINE__, surf.layer_size,
638 			(unsigned long)track->db_s_write_offset << 8, mslice,
639 			radeon_bo_size(track->db_s_write_bo));
640 		return -EINVAL;
641 	}
642 
643 	/* hyperz */
644 	if (G_028040_TILE_SURFACE_ENABLE(track->db_z_info)) {
645 		r = evergreen_cs_track_validate_htile(p, surf.nbx, surf.nby);
646 		if (r) {
647 			return r;
648 		}
649 	}
650 
651 	return 0;
652 }
653 
654 static int evergreen_cs_track_validate_depth(struct radeon_cs_parser *p)
655 {
656 	struct evergreen_cs_track *track = p->track;
657 	struct eg_surface surf;
658 	unsigned pitch, slice, mslice;
659 	unsigned long offset;
660 	int r;
661 
662 	mslice = G_028008_SLICE_MAX(track->db_depth_view) + 1;
663 	pitch = G_028058_PITCH_TILE_MAX(track->db_depth_size);
664 	slice = track->db_depth_slice;
665 	surf.nbx = (pitch + 1) * 8;
666 	surf.nby = ((slice + 1) * 64) / surf.nbx;
667 	surf.mode = G_028040_ARRAY_MODE(track->db_z_info);
668 	surf.format = G_028040_FORMAT(track->db_z_info);
669 	surf.tsplit = G_028040_TILE_SPLIT(track->db_z_info);
670 	surf.nbanks = G_028040_NUM_BANKS(track->db_z_info);
671 	surf.bankw = G_028040_BANK_WIDTH(track->db_z_info);
672 	surf.bankh = G_028040_BANK_HEIGHT(track->db_z_info);
673 	surf.mtilea = G_028040_MACRO_TILE_ASPECT(track->db_z_info);
674 	surf.nsamples = 1;
675 
676 	switch (surf.format) {
677 	case V_028040_Z_16:
678 		surf.format = V_028C70_COLOR_16;
679 		break;
680 	case V_028040_Z_24:
681 	case V_028040_Z_32_FLOAT:
682 		surf.format = V_028C70_COLOR_8_8_8_8;
683 		break;
684 	default:
685 		dev_warn(p->dev, "%s:%d depth invalid format %d\n",
686 			 __func__, __LINE__, surf.format);
687 		return -EINVAL;
688 	}
689 
690 	r = evergreen_surface_value_conv_check(p, &surf, "depth");
691 	if (r) {
692 		dev_warn(p->dev, "%s:%d depth invalid (0x%08x 0x%08x 0x%08x)\n",
693 			 __func__, __LINE__, track->db_depth_size,
694 			 track->db_depth_slice, track->db_z_info);
695 		return r;
696 	}
697 
698 	r = evergreen_surface_check(p, &surf, "depth");
699 	if (r) {
700 		dev_warn(p->dev, "%s:%d depth invalid (0x%08x 0x%08x 0x%08x)\n",
701 			 __func__, __LINE__, track->db_depth_size,
702 			 track->db_depth_slice, track->db_z_info);
703 		return r;
704 	}
705 
706 	offset = track->db_z_read_offset << 8;
707 	if (offset & (surf.base_align - 1)) {
708 		dev_warn(p->dev, "%s:%d stencil read bo base %ld not aligned with %ld\n",
709 			 __func__, __LINE__, offset, surf.base_align);
710 		return -EINVAL;
711 	}
712 	offset += surf.layer_size * mslice;
713 	if (offset > radeon_bo_size(track->db_z_read_bo)) {
714 		dev_warn(p->dev, "%s:%d depth read bo too small (layer size %d, "
715 			 "offset %ld, max layer %d, bo size %ld)\n",
716 			 __func__, __LINE__, surf.layer_size,
717 			(unsigned long)track->db_z_read_offset << 8, mslice,
718 			radeon_bo_size(track->db_z_read_bo));
719 		return -EINVAL;
720 	}
721 
722 	offset = track->db_z_write_offset << 8;
723 	if (offset & (surf.base_align - 1)) {
724 		dev_warn(p->dev, "%s:%d stencil write bo base %ld not aligned with %ld\n",
725 			 __func__, __LINE__, offset, surf.base_align);
726 		return -EINVAL;
727 	}
728 	offset += surf.layer_size * mslice;
729 	if (offset > radeon_bo_size(track->db_z_write_bo)) {
730 		dev_warn(p->dev, "%s:%d depth write bo too small (layer size %d, "
731 			 "offset %ld, max layer %d, bo size %ld)\n",
732 			 __func__, __LINE__, surf.layer_size,
733 			(unsigned long)track->db_z_write_offset << 8, mslice,
734 			radeon_bo_size(track->db_z_write_bo));
735 		return -EINVAL;
736 	}
737 
738 	/* hyperz */
739 	if (G_028040_TILE_SURFACE_ENABLE(track->db_z_info)) {
740 		r = evergreen_cs_track_validate_htile(p, surf.nbx, surf.nby);
741 		if (r) {
742 			return r;
743 		}
744 	}
745 
746 	return 0;
747 }
748 
749 static int evergreen_cs_track_validate_texture(struct radeon_cs_parser *p,
750 					       struct radeon_bo *texture,
751 					       struct radeon_bo *mipmap,
752 					       unsigned idx)
753 {
754 	struct eg_surface surf;
755 	unsigned long toffset, moffset;
756 	unsigned dim, llevel, mslice, width, height, depth, i;
757 	u32 texdw[8];
758 	int r;
759 
760 	texdw[0] = radeon_get_ib_value(p, idx + 0);
761 	texdw[1] = radeon_get_ib_value(p, idx + 1);
762 	texdw[2] = radeon_get_ib_value(p, idx + 2);
763 	texdw[3] = radeon_get_ib_value(p, idx + 3);
764 	texdw[4] = radeon_get_ib_value(p, idx + 4);
765 	texdw[5] = radeon_get_ib_value(p, idx + 5);
766 	texdw[6] = radeon_get_ib_value(p, idx + 6);
767 	texdw[7] = radeon_get_ib_value(p, idx + 7);
768 	dim = G_030000_DIM(texdw[0]);
769 	llevel = G_030014_LAST_LEVEL(texdw[5]);
770 	mslice = G_030014_LAST_ARRAY(texdw[5]) + 1;
771 	width = G_030000_TEX_WIDTH(texdw[0]) + 1;
772 	height =  G_030004_TEX_HEIGHT(texdw[1]) + 1;
773 	depth = G_030004_TEX_DEPTH(texdw[1]) + 1;
774 	surf.format = G_03001C_DATA_FORMAT(texdw[7]);
775 	surf.nbx = (G_030000_PITCH(texdw[0]) + 1) * 8;
776 	surf.nbx = r600_fmt_get_nblocksx(surf.format, surf.nbx);
777 	surf.nby = r600_fmt_get_nblocksy(surf.format, height);
778 	surf.mode = G_030004_ARRAY_MODE(texdw[1]);
779 	surf.tsplit = G_030018_TILE_SPLIT(texdw[6]);
780 	surf.nbanks = G_03001C_NUM_BANKS(texdw[7]);
781 	surf.bankw = G_03001C_BANK_WIDTH(texdw[7]);
782 	surf.bankh = G_03001C_BANK_HEIGHT(texdw[7]);
783 	surf.mtilea = G_03001C_MACRO_TILE_ASPECT(texdw[7]);
784 	surf.nsamples = 1;
785 	toffset = texdw[2] << 8;
786 	moffset = texdw[3] << 8;
787 
788 	if (!r600_fmt_is_valid_texture(surf.format, p->family)) {
789 		dev_warn(p->dev, "%s:%d texture invalid format %d\n",
790 			 __func__, __LINE__, surf.format);
791 		return -EINVAL;
792 	}
793 	switch (dim) {
794 	case V_030000_SQ_TEX_DIM_1D:
795 	case V_030000_SQ_TEX_DIM_2D:
796 	case V_030000_SQ_TEX_DIM_CUBEMAP:
797 	case V_030000_SQ_TEX_DIM_1D_ARRAY:
798 	case V_030000_SQ_TEX_DIM_2D_ARRAY:
799 		depth = 1;
800 		break;
801 	case V_030000_SQ_TEX_DIM_2D_MSAA:
802 	case V_030000_SQ_TEX_DIM_2D_ARRAY_MSAA:
803 		surf.nsamples = 1 << llevel;
804 		llevel = 0;
805 		depth = 1;
806 		break;
807 	case V_030000_SQ_TEX_DIM_3D:
808 		break;
809 	default:
810 		dev_warn(p->dev, "%s:%d texture invalid dimension %d\n",
811 			 __func__, __LINE__, dim);
812 		return -EINVAL;
813 	}
814 
815 	r = evergreen_surface_value_conv_check(p, &surf, "texture");
816 	if (r) {
817 		return r;
818 	}
819 
820 	/* align height */
821 	evergreen_surface_check(p, &surf, NULL);
822 	surf.nby = ALIGN(surf.nby, surf.halign);
823 
824 	r = evergreen_surface_check(p, &surf, "texture");
825 	if (r) {
826 		dev_warn(p->dev, "%s:%d texture invalid 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
827 			 __func__, __LINE__, texdw[0], texdw[1], texdw[4],
828 			 texdw[5], texdw[6], texdw[7]);
829 		return r;
830 	}
831 
832 	/* check texture size */
833 	if (toffset & (surf.base_align - 1)) {
834 		dev_warn(p->dev, "%s:%d texture bo base %ld not aligned with %ld\n",
835 			 __func__, __LINE__, toffset, surf.base_align);
836 		return -EINVAL;
837 	}
838 	if (surf.nsamples <= 1 && moffset & (surf.base_align - 1)) {
839 		dev_warn(p->dev, "%s:%d mipmap bo base %ld not aligned with %ld\n",
840 			 __func__, __LINE__, moffset, surf.base_align);
841 		return -EINVAL;
842 	}
843 	if (dim == SQ_TEX_DIM_3D) {
844 		toffset += surf.layer_size * depth;
845 	} else {
846 		toffset += surf.layer_size * mslice;
847 	}
848 	if (toffset > radeon_bo_size(texture)) {
849 		dev_warn(p->dev, "%s:%d texture bo too small (layer size %d, "
850 			 "offset %ld, max layer %d, depth %d, bo size %ld) (%d %d)\n",
851 			 __func__, __LINE__, surf.layer_size,
852 			(unsigned long)texdw[2] << 8, mslice,
853 			depth, radeon_bo_size(texture),
854 			surf.nbx, surf.nby);
855 		return -EINVAL;
856 	}
857 
858 	if (!mipmap) {
859 		if (llevel) {
860 			dev_warn(p->dev, "%s:%i got NULL MIP_ADDRESS relocation\n",
861 				 __func__, __LINE__);
862 			return -EINVAL;
863 		} else {
864 			return 0; /* everything's ok */
865 		}
866 	}
867 
868 	/* check mipmap size */
869 	for (i = 1; i <= llevel; i++) {
870 		unsigned w, h, d;
871 
872 		w = r600_mip_minify(width, i);
873 		h = r600_mip_minify(height, i);
874 		d = r600_mip_minify(depth, i);
875 		surf.nbx = r600_fmt_get_nblocksx(surf.format, w);
876 		surf.nby = r600_fmt_get_nblocksy(surf.format, h);
877 
878 		switch (surf.mode) {
879 		case ARRAY_2D_TILED_THIN1:
880 			if (surf.nbx < surf.palign || surf.nby < surf.halign) {
881 				surf.mode = ARRAY_1D_TILED_THIN1;
882 			}
883 			/* recompute alignment */
884 			evergreen_surface_check(p, &surf, NULL);
885 			break;
886 		case ARRAY_LINEAR_GENERAL:
887 		case ARRAY_LINEAR_ALIGNED:
888 		case ARRAY_1D_TILED_THIN1:
889 			break;
890 		default:
891 			dev_warn(p->dev, "%s:%d invalid array mode %d\n",
892 				 __func__, __LINE__, surf.mode);
893 			return -EINVAL;
894 		}
895 		surf.nbx = ALIGN(surf.nbx, surf.palign);
896 		surf.nby = ALIGN(surf.nby, surf.halign);
897 
898 		r = evergreen_surface_check(p, &surf, "mipmap");
899 		if (r) {
900 			return r;
901 		}
902 
903 		if (dim == SQ_TEX_DIM_3D) {
904 			moffset += surf.layer_size * d;
905 		} else {
906 			moffset += surf.layer_size * mslice;
907 		}
908 		if (moffset > radeon_bo_size(mipmap)) {
909 			dev_warn(p->dev, "%s:%d mipmap [%d] bo too small (layer size %d, "
910 					"offset %ld, coffset %ld, max layer %d, depth %d, "
911 					"bo size %ld) level0 (%d %d %d)\n",
912 					__func__, __LINE__, i, surf.layer_size,
913 					(unsigned long)texdw[3] << 8, moffset, mslice,
914 					d, radeon_bo_size(mipmap),
915 					width, height, depth);
916 			dev_warn(p->dev, "%s:%d problematic surf: (%d %d) (%d %d %d %d %d %d %d)\n",
917 				 __func__, __LINE__, surf.nbx, surf.nby,
918 				surf.mode, surf.bpe, surf.nsamples,
919 				surf.bankw, surf.bankh,
920 				surf.tsplit, surf.mtilea);
921 			return -EINVAL;
922 		}
923 	}
924 
925 	return 0;
926 }
927 
928 static int evergreen_cs_track_check(struct radeon_cs_parser *p)
929 {
930 	struct evergreen_cs_track *track = p->track;
931 	unsigned tmp, i;
932 	int r;
933 	unsigned buffer_mask = 0;
934 
935 	/* check streamout */
936 	if (track->streamout_dirty && track->vgt_strmout_config) {
937 		for (i = 0; i < 4; i++) {
938 			if (track->vgt_strmout_config & (1 << i)) {
939 				buffer_mask |= (track->vgt_strmout_buffer_config >> (i * 4)) & 0xf;
940 			}
941 		}
942 
943 		for (i = 0; i < 4; i++) {
944 			if (buffer_mask & (1 << i)) {
945 				if (track->vgt_strmout_bo[i]) {
946 					u64 offset = (u64)track->vgt_strmout_bo_offset[i] +
947 							(u64)track->vgt_strmout_size[i];
948 					if (offset > radeon_bo_size(track->vgt_strmout_bo[i])) {
949 						DRM_ERROR("streamout %d bo too small: 0x%llx, 0x%lx\n",
950 							  i, offset,
951 							  radeon_bo_size(track->vgt_strmout_bo[i]));
952 						return -EINVAL;
953 					}
954 				} else {
955 					dev_warn(p->dev, "No buffer for streamout %d\n", i);
956 					return -EINVAL;
957 				}
958 			}
959 		}
960 		track->streamout_dirty = false;
961 	}
962 
963 	if (track->sx_misc_kill_all_prims)
964 		return 0;
965 
966 	/* check that we have a cb for each enabled target
967 	 */
968 	if (track->cb_dirty) {
969 		tmp = track->cb_target_mask;
970 		for (i = 0; i < 8; i++) {
971 			u32 format = G_028C70_FORMAT(track->cb_color_info[i]);
972 
973 			if (format != V_028C70_COLOR_INVALID &&
974 			    (tmp >> (i * 4)) & 0xF) {
975 				/* at least one component is enabled */
976 				if (track->cb_color_bo[i] == NULL) {
977 					dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
978 						__func__, __LINE__, track->cb_target_mask, track->cb_shader_mask, i);
979 					return -EINVAL;
980 				}
981 				/* check cb */
982 				r = evergreen_cs_track_validate_cb(p, i);
983 				if (r) {
984 					return r;
985 				}
986 			}
987 		}
988 		track->cb_dirty = false;
989 	}
990 
991 	if (track->db_dirty) {
992 		/* Check stencil buffer */
993 		if (G_028044_FORMAT(track->db_s_info) != V_028044_STENCIL_INVALID &&
994 		    G_028800_STENCIL_ENABLE(track->db_depth_control)) {
995 			r = evergreen_cs_track_validate_stencil(p);
996 			if (r)
997 				return r;
998 		}
999 		/* Check depth buffer */
1000 		if (G_028040_FORMAT(track->db_z_info) != V_028040_Z_INVALID &&
1001 		    G_028800_Z_ENABLE(track->db_depth_control)) {
1002 			r = evergreen_cs_track_validate_depth(p);
1003 			if (r)
1004 				return r;
1005 		}
1006 		track->db_dirty = false;
1007 	}
1008 
1009 	return 0;
1010 }
1011 
1012 /**
1013  * evergreen_cs_packet_parse_vline() - parse userspace VLINE packet
1014  * @parser:		parser structure holding parsing context.
1015  *
1016  * This is an Evergreen(+)-specific function for parsing VLINE packets.
1017  * Real work is done by r600_cs_common_vline_parse function.
1018  * Here we just set up ASIC-specific register table and call
1019  * the common implementation function.
1020  */
1021 static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
1022 {
1023 
1024 	static uint32_t vline_start_end[6] = {
1025 		EVERGREEN_VLINE_START_END + EVERGREEN_CRTC0_REGISTER_OFFSET,
1026 		EVERGREEN_VLINE_START_END + EVERGREEN_CRTC1_REGISTER_OFFSET,
1027 		EVERGREEN_VLINE_START_END + EVERGREEN_CRTC2_REGISTER_OFFSET,
1028 		EVERGREEN_VLINE_START_END + EVERGREEN_CRTC3_REGISTER_OFFSET,
1029 		EVERGREEN_VLINE_START_END + EVERGREEN_CRTC4_REGISTER_OFFSET,
1030 		EVERGREEN_VLINE_START_END + EVERGREEN_CRTC5_REGISTER_OFFSET
1031 	};
1032 	static uint32_t vline_status[6] = {
1033 		EVERGREEN_VLINE_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET,
1034 		EVERGREEN_VLINE_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET,
1035 		EVERGREEN_VLINE_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET,
1036 		EVERGREEN_VLINE_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET,
1037 		EVERGREEN_VLINE_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET,
1038 		EVERGREEN_VLINE_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET
1039 	};
1040 
1041 	return r600_cs_common_vline_parse(p, vline_start_end, vline_status);
1042 }
1043 
1044 static int evergreen_packet0_check(struct radeon_cs_parser *p,
1045 				   struct radeon_cs_packet *pkt,
1046 				   unsigned idx, unsigned reg)
1047 {
1048 	int r;
1049 
1050 	switch (reg) {
1051 	case EVERGREEN_VLINE_START_END:
1052 		r = evergreen_cs_packet_parse_vline(p);
1053 		if (r) {
1054 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1055 					idx, reg);
1056 			return r;
1057 		}
1058 		break;
1059 	default:
1060 		printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
1061 		       reg, idx);
1062 		return -EINVAL;
1063 	}
1064 	return 0;
1065 }
1066 
1067 static int evergreen_cs_parse_packet0(struct radeon_cs_parser *p,
1068 				      struct radeon_cs_packet *pkt)
1069 {
1070 	unsigned reg, i;
1071 	unsigned idx;
1072 	int r;
1073 
1074 	idx = pkt->idx + 1;
1075 	reg = pkt->reg;
1076 	for (i = 0; i <= pkt->count; i++, idx++, reg += 4) {
1077 		r = evergreen_packet0_check(p, pkt, idx, reg);
1078 		if (r) {
1079 			return r;
1080 		}
1081 	}
1082 	return 0;
1083 }
1084 
1085 /**
1086  * evergreen_cs_check_reg() - check if register is authorized or not
1087  * @parser: parser structure holding parsing context
1088  * @reg: register we are testing
1089  * @idx: index into the cs buffer
1090  *
1091  * This function will test against evergreen_reg_safe_bm and return 0
1092  * if register is safe. If register is not flag as safe this function
1093  * will test it against a list of register needind special handling.
1094  */
1095 static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
1096 {
1097 	struct evergreen_cs_track *track = (struct evergreen_cs_track *)p->track;
1098 	struct radeon_bo_list *reloc;
1099 	u32 last_reg;
1100 	u32 m, i, tmp, *ib;
1101 	int r;
1102 
1103 	if (p->rdev->family >= CHIP_CAYMAN)
1104 		last_reg = ARRAY_SIZE(cayman_reg_safe_bm);
1105 	else
1106 		last_reg = ARRAY_SIZE(evergreen_reg_safe_bm);
1107 
1108 	i = (reg >> 7);
1109 	if (i >= last_reg) {
1110 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1111 		return -EINVAL;
1112 	}
1113 	m = 1 << ((reg >> 2) & 31);
1114 	if (p->rdev->family >= CHIP_CAYMAN) {
1115 		if (!(cayman_reg_safe_bm[i] & m))
1116 			return 0;
1117 	} else {
1118 		if (!(evergreen_reg_safe_bm[i] & m))
1119 			return 0;
1120 	}
1121 	ib = p->ib.ptr;
1122 	switch (reg) {
1123 	/* force following reg to 0 in an attempt to disable out buffer
1124 	 * which will need us to better understand how it works to perform
1125 	 * security check on it (Jerome)
1126 	 */
1127 	case SQ_ESGS_RING_SIZE:
1128 	case SQ_GSVS_RING_SIZE:
1129 	case SQ_ESTMP_RING_SIZE:
1130 	case SQ_GSTMP_RING_SIZE:
1131 	case SQ_HSTMP_RING_SIZE:
1132 	case SQ_LSTMP_RING_SIZE:
1133 	case SQ_PSTMP_RING_SIZE:
1134 	case SQ_VSTMP_RING_SIZE:
1135 	case SQ_ESGS_RING_ITEMSIZE:
1136 	case SQ_ESTMP_RING_ITEMSIZE:
1137 	case SQ_GSTMP_RING_ITEMSIZE:
1138 	case SQ_GSVS_RING_ITEMSIZE:
1139 	case SQ_GS_VERT_ITEMSIZE:
1140 	case SQ_GS_VERT_ITEMSIZE_1:
1141 	case SQ_GS_VERT_ITEMSIZE_2:
1142 	case SQ_GS_VERT_ITEMSIZE_3:
1143 	case SQ_GSVS_RING_OFFSET_1:
1144 	case SQ_GSVS_RING_OFFSET_2:
1145 	case SQ_GSVS_RING_OFFSET_3:
1146 	case SQ_HSTMP_RING_ITEMSIZE:
1147 	case SQ_LSTMP_RING_ITEMSIZE:
1148 	case SQ_PSTMP_RING_ITEMSIZE:
1149 	case SQ_VSTMP_RING_ITEMSIZE:
1150 	case VGT_TF_RING_SIZE:
1151 		/* get value to populate the IB don't remove */
1152 		/*tmp =radeon_get_ib_value(p, idx);
1153 		  ib[idx] = 0;*/
1154 		break;
1155 	case SQ_ESGS_RING_BASE:
1156 	case SQ_GSVS_RING_BASE:
1157 	case SQ_ESTMP_RING_BASE:
1158 	case SQ_GSTMP_RING_BASE:
1159 	case SQ_HSTMP_RING_BASE:
1160 	case SQ_LSTMP_RING_BASE:
1161 	case SQ_PSTMP_RING_BASE:
1162 	case SQ_VSTMP_RING_BASE:
1163 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1164 		if (r) {
1165 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1166 					"0x%04X\n", reg);
1167 			return -EINVAL;
1168 		}
1169 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1170 		break;
1171 	case DB_DEPTH_CONTROL:
1172 		track->db_depth_control = radeon_get_ib_value(p, idx);
1173 		track->db_dirty = true;
1174 		break;
1175 	case CAYMAN_DB_EQAA:
1176 		if (p->rdev->family < CHIP_CAYMAN) {
1177 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1178 				 "0x%04X\n", reg);
1179 			return -EINVAL;
1180 		}
1181 		break;
1182 	case CAYMAN_DB_DEPTH_INFO:
1183 		if (p->rdev->family < CHIP_CAYMAN) {
1184 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1185 				 "0x%04X\n", reg);
1186 			return -EINVAL;
1187 		}
1188 		break;
1189 	case DB_Z_INFO:
1190 		track->db_z_info = radeon_get_ib_value(p, idx);
1191 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
1192 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1193 			if (r) {
1194 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
1195 						"0x%04X\n", reg);
1196 				return -EINVAL;
1197 			}
1198 			ib[idx] &= ~Z_ARRAY_MODE(0xf);
1199 			track->db_z_info &= ~Z_ARRAY_MODE(0xf);
1200 			ib[idx] |= Z_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
1201 			track->db_z_info |= Z_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
1202 			if (reloc->tiling_flags & RADEON_TILING_MACRO) {
1203 				unsigned bankw, bankh, mtaspect, tile_split;
1204 
1205 				evergreen_tiling_fields(reloc->tiling_flags,
1206 							&bankw, &bankh, &mtaspect,
1207 							&tile_split);
1208 				ib[idx] |= DB_NUM_BANKS(evergreen_cs_get_num_banks(track->nbanks));
1209 				ib[idx] |= DB_TILE_SPLIT(tile_split) |
1210 						DB_BANK_WIDTH(bankw) |
1211 						DB_BANK_HEIGHT(bankh) |
1212 						DB_MACRO_TILE_ASPECT(mtaspect);
1213 			}
1214 		}
1215 		track->db_dirty = true;
1216 		break;
1217 	case DB_STENCIL_INFO:
1218 		track->db_s_info = radeon_get_ib_value(p, idx);
1219 		track->db_dirty = true;
1220 		break;
1221 	case DB_DEPTH_VIEW:
1222 		track->db_depth_view = radeon_get_ib_value(p, idx);
1223 		track->db_dirty = true;
1224 		break;
1225 	case DB_DEPTH_SIZE:
1226 		track->db_depth_size = radeon_get_ib_value(p, idx);
1227 		track->db_dirty = true;
1228 		break;
1229 	case R_02805C_DB_DEPTH_SLICE:
1230 		track->db_depth_slice = radeon_get_ib_value(p, idx);
1231 		track->db_dirty = true;
1232 		break;
1233 	case DB_Z_READ_BASE:
1234 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1235 		if (r) {
1236 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1237 					"0x%04X\n", reg);
1238 			return -EINVAL;
1239 		}
1240 		track->db_z_read_offset = radeon_get_ib_value(p, idx);
1241 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1242 		track->db_z_read_bo = reloc->robj;
1243 		track->db_dirty = true;
1244 		break;
1245 	case DB_Z_WRITE_BASE:
1246 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1247 		if (r) {
1248 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1249 					"0x%04X\n", reg);
1250 			return -EINVAL;
1251 		}
1252 		track->db_z_write_offset = radeon_get_ib_value(p, idx);
1253 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1254 		track->db_z_write_bo = reloc->robj;
1255 		track->db_dirty = true;
1256 		break;
1257 	case DB_STENCIL_READ_BASE:
1258 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1259 		if (r) {
1260 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1261 					"0x%04X\n", reg);
1262 			return -EINVAL;
1263 		}
1264 		track->db_s_read_offset = radeon_get_ib_value(p, idx);
1265 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1266 		track->db_s_read_bo = reloc->robj;
1267 		track->db_dirty = true;
1268 		break;
1269 	case DB_STENCIL_WRITE_BASE:
1270 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1271 		if (r) {
1272 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1273 					"0x%04X\n", reg);
1274 			return -EINVAL;
1275 		}
1276 		track->db_s_write_offset = radeon_get_ib_value(p, idx);
1277 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1278 		track->db_s_write_bo = reloc->robj;
1279 		track->db_dirty = true;
1280 		break;
1281 	case VGT_STRMOUT_CONFIG:
1282 		track->vgt_strmout_config = radeon_get_ib_value(p, idx);
1283 		track->streamout_dirty = true;
1284 		break;
1285 	case VGT_STRMOUT_BUFFER_CONFIG:
1286 		track->vgt_strmout_buffer_config = radeon_get_ib_value(p, idx);
1287 		track->streamout_dirty = true;
1288 		break;
1289 	case VGT_STRMOUT_BUFFER_BASE_0:
1290 	case VGT_STRMOUT_BUFFER_BASE_1:
1291 	case VGT_STRMOUT_BUFFER_BASE_2:
1292 	case VGT_STRMOUT_BUFFER_BASE_3:
1293 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1294 		if (r) {
1295 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1296 					"0x%04X\n", reg);
1297 			return -EINVAL;
1298 		}
1299 		tmp = (reg - VGT_STRMOUT_BUFFER_BASE_0) / 16;
1300 		track->vgt_strmout_bo_offset[tmp] = radeon_get_ib_value(p, idx) << 8;
1301 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1302 		track->vgt_strmout_bo[tmp] = reloc->robj;
1303 		track->streamout_dirty = true;
1304 		break;
1305 	case VGT_STRMOUT_BUFFER_SIZE_0:
1306 	case VGT_STRMOUT_BUFFER_SIZE_1:
1307 	case VGT_STRMOUT_BUFFER_SIZE_2:
1308 	case VGT_STRMOUT_BUFFER_SIZE_3:
1309 		tmp = (reg - VGT_STRMOUT_BUFFER_SIZE_0) / 16;
1310 		/* size in register is DWs, convert to bytes */
1311 		track->vgt_strmout_size[tmp] = radeon_get_ib_value(p, idx) * 4;
1312 		track->streamout_dirty = true;
1313 		break;
1314 	case CP_COHER_BASE:
1315 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1316 		if (r) {
1317 			dev_warn(p->dev, "missing reloc for CP_COHER_BASE "
1318 					"0x%04X\n", reg);
1319 			return -EINVAL;
1320 		}
1321 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1322 	case CB_TARGET_MASK:
1323 		track->cb_target_mask = radeon_get_ib_value(p, idx);
1324 		track->cb_dirty = true;
1325 		break;
1326 	case CB_SHADER_MASK:
1327 		track->cb_shader_mask = radeon_get_ib_value(p, idx);
1328 		track->cb_dirty = true;
1329 		break;
1330 	case PA_SC_AA_CONFIG:
1331 		if (p->rdev->family >= CHIP_CAYMAN) {
1332 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1333 				 "0x%04X\n", reg);
1334 			return -EINVAL;
1335 		}
1336 		tmp = radeon_get_ib_value(p, idx) & MSAA_NUM_SAMPLES_MASK;
1337 		track->nsamples = 1 << tmp;
1338 		break;
1339 	case CAYMAN_PA_SC_AA_CONFIG:
1340 		if (p->rdev->family < CHIP_CAYMAN) {
1341 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1342 				 "0x%04X\n", reg);
1343 			return -EINVAL;
1344 		}
1345 		tmp = radeon_get_ib_value(p, idx) & CAYMAN_MSAA_NUM_SAMPLES_MASK;
1346 		track->nsamples = 1 << tmp;
1347 		break;
1348 	case CB_COLOR0_VIEW:
1349 	case CB_COLOR1_VIEW:
1350 	case CB_COLOR2_VIEW:
1351 	case CB_COLOR3_VIEW:
1352 	case CB_COLOR4_VIEW:
1353 	case CB_COLOR5_VIEW:
1354 	case CB_COLOR6_VIEW:
1355 	case CB_COLOR7_VIEW:
1356 		tmp = (reg - CB_COLOR0_VIEW) / 0x3c;
1357 		track->cb_color_view[tmp] = radeon_get_ib_value(p, idx);
1358 		track->cb_dirty = true;
1359 		break;
1360 	case CB_COLOR8_VIEW:
1361 	case CB_COLOR9_VIEW:
1362 	case CB_COLOR10_VIEW:
1363 	case CB_COLOR11_VIEW:
1364 		tmp = ((reg - CB_COLOR8_VIEW) / 0x1c) + 8;
1365 		track->cb_color_view[tmp] = radeon_get_ib_value(p, idx);
1366 		track->cb_dirty = true;
1367 		break;
1368 	case CB_COLOR0_INFO:
1369 	case CB_COLOR1_INFO:
1370 	case CB_COLOR2_INFO:
1371 	case CB_COLOR3_INFO:
1372 	case CB_COLOR4_INFO:
1373 	case CB_COLOR5_INFO:
1374 	case CB_COLOR6_INFO:
1375 	case CB_COLOR7_INFO:
1376 		tmp = (reg - CB_COLOR0_INFO) / 0x3c;
1377 		track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
1378 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
1379 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1380 			if (r) {
1381 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
1382 						"0x%04X\n", reg);
1383 				return -EINVAL;
1384 			}
1385 			ib[idx] |= CB_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
1386 			track->cb_color_info[tmp] |= CB_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
1387 		}
1388 		track->cb_dirty = true;
1389 		break;
1390 	case CB_COLOR8_INFO:
1391 	case CB_COLOR9_INFO:
1392 	case CB_COLOR10_INFO:
1393 	case CB_COLOR11_INFO:
1394 		tmp = ((reg - CB_COLOR8_INFO) / 0x1c) + 8;
1395 		track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
1396 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
1397 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1398 			if (r) {
1399 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
1400 						"0x%04X\n", reg);
1401 				return -EINVAL;
1402 			}
1403 			ib[idx] |= CB_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
1404 			track->cb_color_info[tmp] |= CB_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
1405 		}
1406 		track->cb_dirty = true;
1407 		break;
1408 	case CB_COLOR0_PITCH:
1409 	case CB_COLOR1_PITCH:
1410 	case CB_COLOR2_PITCH:
1411 	case CB_COLOR3_PITCH:
1412 	case CB_COLOR4_PITCH:
1413 	case CB_COLOR5_PITCH:
1414 	case CB_COLOR6_PITCH:
1415 	case CB_COLOR7_PITCH:
1416 		tmp = (reg - CB_COLOR0_PITCH) / 0x3c;
1417 		track->cb_color_pitch[tmp] = radeon_get_ib_value(p, idx);
1418 		track->cb_dirty = true;
1419 		break;
1420 	case CB_COLOR8_PITCH:
1421 	case CB_COLOR9_PITCH:
1422 	case CB_COLOR10_PITCH:
1423 	case CB_COLOR11_PITCH:
1424 		tmp = ((reg - CB_COLOR8_PITCH) / 0x1c) + 8;
1425 		track->cb_color_pitch[tmp] = radeon_get_ib_value(p, idx);
1426 		track->cb_dirty = true;
1427 		break;
1428 	case CB_COLOR0_SLICE:
1429 	case CB_COLOR1_SLICE:
1430 	case CB_COLOR2_SLICE:
1431 	case CB_COLOR3_SLICE:
1432 	case CB_COLOR4_SLICE:
1433 	case CB_COLOR5_SLICE:
1434 	case CB_COLOR6_SLICE:
1435 	case CB_COLOR7_SLICE:
1436 		tmp = (reg - CB_COLOR0_SLICE) / 0x3c;
1437 		track->cb_color_slice[tmp] = radeon_get_ib_value(p, idx);
1438 		track->cb_color_slice_idx[tmp] = idx;
1439 		track->cb_dirty = true;
1440 		break;
1441 	case CB_COLOR8_SLICE:
1442 	case CB_COLOR9_SLICE:
1443 	case CB_COLOR10_SLICE:
1444 	case CB_COLOR11_SLICE:
1445 		tmp = ((reg - CB_COLOR8_SLICE) / 0x1c) + 8;
1446 		track->cb_color_slice[tmp] = radeon_get_ib_value(p, idx);
1447 		track->cb_color_slice_idx[tmp] = idx;
1448 		track->cb_dirty = true;
1449 		break;
1450 	case CB_COLOR0_ATTRIB:
1451 	case CB_COLOR1_ATTRIB:
1452 	case CB_COLOR2_ATTRIB:
1453 	case CB_COLOR3_ATTRIB:
1454 	case CB_COLOR4_ATTRIB:
1455 	case CB_COLOR5_ATTRIB:
1456 	case CB_COLOR6_ATTRIB:
1457 	case CB_COLOR7_ATTRIB:
1458 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1459 		if (r) {
1460 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1461 					"0x%04X\n", reg);
1462 			return -EINVAL;
1463 		}
1464 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
1465 			if (reloc->tiling_flags & RADEON_TILING_MACRO) {
1466 				unsigned bankw, bankh, mtaspect, tile_split;
1467 
1468 				evergreen_tiling_fields(reloc->tiling_flags,
1469 							&bankw, &bankh, &mtaspect,
1470 							&tile_split);
1471 				ib[idx] |= CB_NUM_BANKS(evergreen_cs_get_num_banks(track->nbanks));
1472 				ib[idx] |= CB_TILE_SPLIT(tile_split) |
1473 					   CB_BANK_WIDTH(bankw) |
1474 					   CB_BANK_HEIGHT(bankh) |
1475 					   CB_MACRO_TILE_ASPECT(mtaspect);
1476 			}
1477 		}
1478 		tmp = ((reg - CB_COLOR0_ATTRIB) / 0x3c);
1479 		track->cb_color_attrib[tmp] = ib[idx];
1480 		track->cb_dirty = true;
1481 		break;
1482 	case CB_COLOR8_ATTRIB:
1483 	case CB_COLOR9_ATTRIB:
1484 	case CB_COLOR10_ATTRIB:
1485 	case CB_COLOR11_ATTRIB:
1486 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1487 		if (r) {
1488 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1489 					"0x%04X\n", reg);
1490 			return -EINVAL;
1491 		}
1492 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
1493 			if (reloc->tiling_flags & RADEON_TILING_MACRO) {
1494 				unsigned bankw, bankh, mtaspect, tile_split;
1495 
1496 				evergreen_tiling_fields(reloc->tiling_flags,
1497 							&bankw, &bankh, &mtaspect,
1498 							&tile_split);
1499 				ib[idx] |= CB_NUM_BANKS(evergreen_cs_get_num_banks(track->nbanks));
1500 				ib[idx] |= CB_TILE_SPLIT(tile_split) |
1501 					   CB_BANK_WIDTH(bankw) |
1502 					   CB_BANK_HEIGHT(bankh) |
1503 					   CB_MACRO_TILE_ASPECT(mtaspect);
1504 			}
1505 		}
1506 		tmp = ((reg - CB_COLOR8_ATTRIB) / 0x1c) + 8;
1507 		track->cb_color_attrib[tmp] = ib[idx];
1508 		track->cb_dirty = true;
1509 		break;
1510 	case CB_COLOR0_FMASK:
1511 	case CB_COLOR1_FMASK:
1512 	case CB_COLOR2_FMASK:
1513 	case CB_COLOR3_FMASK:
1514 	case CB_COLOR4_FMASK:
1515 	case CB_COLOR5_FMASK:
1516 	case CB_COLOR6_FMASK:
1517 	case CB_COLOR7_FMASK:
1518 		tmp = (reg - CB_COLOR0_FMASK) / 0x3c;
1519 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1520 		if (r) {
1521 			dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
1522 			return -EINVAL;
1523 		}
1524 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1525 		track->cb_color_fmask_bo[tmp] = reloc->robj;
1526 		break;
1527 	case CB_COLOR0_CMASK:
1528 	case CB_COLOR1_CMASK:
1529 	case CB_COLOR2_CMASK:
1530 	case CB_COLOR3_CMASK:
1531 	case CB_COLOR4_CMASK:
1532 	case CB_COLOR5_CMASK:
1533 	case CB_COLOR6_CMASK:
1534 	case CB_COLOR7_CMASK:
1535 		tmp = (reg - CB_COLOR0_CMASK) / 0x3c;
1536 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1537 		if (r) {
1538 			dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
1539 			return -EINVAL;
1540 		}
1541 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1542 		track->cb_color_cmask_bo[tmp] = reloc->robj;
1543 		break;
1544 	case CB_COLOR0_FMASK_SLICE:
1545 	case CB_COLOR1_FMASK_SLICE:
1546 	case CB_COLOR2_FMASK_SLICE:
1547 	case CB_COLOR3_FMASK_SLICE:
1548 	case CB_COLOR4_FMASK_SLICE:
1549 	case CB_COLOR5_FMASK_SLICE:
1550 	case CB_COLOR6_FMASK_SLICE:
1551 	case CB_COLOR7_FMASK_SLICE:
1552 		tmp = (reg - CB_COLOR0_FMASK_SLICE) / 0x3c;
1553 		track->cb_color_fmask_slice[tmp] = radeon_get_ib_value(p, idx);
1554 		break;
1555 	case CB_COLOR0_CMASK_SLICE:
1556 	case CB_COLOR1_CMASK_SLICE:
1557 	case CB_COLOR2_CMASK_SLICE:
1558 	case CB_COLOR3_CMASK_SLICE:
1559 	case CB_COLOR4_CMASK_SLICE:
1560 	case CB_COLOR5_CMASK_SLICE:
1561 	case CB_COLOR6_CMASK_SLICE:
1562 	case CB_COLOR7_CMASK_SLICE:
1563 		tmp = (reg - CB_COLOR0_CMASK_SLICE) / 0x3c;
1564 		track->cb_color_cmask_slice[tmp] = radeon_get_ib_value(p, idx);
1565 		break;
1566 	case CB_COLOR0_BASE:
1567 	case CB_COLOR1_BASE:
1568 	case CB_COLOR2_BASE:
1569 	case CB_COLOR3_BASE:
1570 	case CB_COLOR4_BASE:
1571 	case CB_COLOR5_BASE:
1572 	case CB_COLOR6_BASE:
1573 	case CB_COLOR7_BASE:
1574 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1575 		if (r) {
1576 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1577 					"0x%04X\n", reg);
1578 			return -EINVAL;
1579 		}
1580 		tmp = (reg - CB_COLOR0_BASE) / 0x3c;
1581 		track->cb_color_bo_offset[tmp] = radeon_get_ib_value(p, idx);
1582 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1583 		track->cb_color_bo[tmp] = reloc->robj;
1584 		track->cb_dirty = true;
1585 		break;
1586 	case CB_COLOR8_BASE:
1587 	case CB_COLOR9_BASE:
1588 	case CB_COLOR10_BASE:
1589 	case CB_COLOR11_BASE:
1590 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1591 		if (r) {
1592 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1593 					"0x%04X\n", reg);
1594 			return -EINVAL;
1595 		}
1596 		tmp = ((reg - CB_COLOR8_BASE) / 0x1c) + 8;
1597 		track->cb_color_bo_offset[tmp] = radeon_get_ib_value(p, idx);
1598 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1599 		track->cb_color_bo[tmp] = reloc->robj;
1600 		track->cb_dirty = true;
1601 		break;
1602 	case DB_HTILE_DATA_BASE:
1603 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1604 		if (r) {
1605 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1606 					"0x%04X\n", reg);
1607 			return -EINVAL;
1608 		}
1609 		track->htile_offset = radeon_get_ib_value(p, idx);
1610 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1611 		track->htile_bo = reloc->robj;
1612 		track->db_dirty = true;
1613 		break;
1614 	case DB_HTILE_SURFACE:
1615 		/* 8x8 only */
1616 		track->htile_surface = radeon_get_ib_value(p, idx);
1617 		/* force 8x8 htile width and height */
1618 		ib[idx] |= 3;
1619 		track->db_dirty = true;
1620 		break;
1621 	case CB_IMMED0_BASE:
1622 	case CB_IMMED1_BASE:
1623 	case CB_IMMED2_BASE:
1624 	case CB_IMMED3_BASE:
1625 	case CB_IMMED4_BASE:
1626 	case CB_IMMED5_BASE:
1627 	case CB_IMMED6_BASE:
1628 	case CB_IMMED7_BASE:
1629 	case CB_IMMED8_BASE:
1630 	case CB_IMMED9_BASE:
1631 	case CB_IMMED10_BASE:
1632 	case CB_IMMED11_BASE:
1633 	case SQ_PGM_START_FS:
1634 	case SQ_PGM_START_ES:
1635 	case SQ_PGM_START_VS:
1636 	case SQ_PGM_START_GS:
1637 	case SQ_PGM_START_PS:
1638 	case SQ_PGM_START_HS:
1639 	case SQ_PGM_START_LS:
1640 	case SQ_CONST_MEM_BASE:
1641 	case SQ_ALU_CONST_CACHE_GS_0:
1642 	case SQ_ALU_CONST_CACHE_GS_1:
1643 	case SQ_ALU_CONST_CACHE_GS_2:
1644 	case SQ_ALU_CONST_CACHE_GS_3:
1645 	case SQ_ALU_CONST_CACHE_GS_4:
1646 	case SQ_ALU_CONST_CACHE_GS_5:
1647 	case SQ_ALU_CONST_CACHE_GS_6:
1648 	case SQ_ALU_CONST_CACHE_GS_7:
1649 	case SQ_ALU_CONST_CACHE_GS_8:
1650 	case SQ_ALU_CONST_CACHE_GS_9:
1651 	case SQ_ALU_CONST_CACHE_GS_10:
1652 	case SQ_ALU_CONST_CACHE_GS_11:
1653 	case SQ_ALU_CONST_CACHE_GS_12:
1654 	case SQ_ALU_CONST_CACHE_GS_13:
1655 	case SQ_ALU_CONST_CACHE_GS_14:
1656 	case SQ_ALU_CONST_CACHE_GS_15:
1657 	case SQ_ALU_CONST_CACHE_PS_0:
1658 	case SQ_ALU_CONST_CACHE_PS_1:
1659 	case SQ_ALU_CONST_CACHE_PS_2:
1660 	case SQ_ALU_CONST_CACHE_PS_3:
1661 	case SQ_ALU_CONST_CACHE_PS_4:
1662 	case SQ_ALU_CONST_CACHE_PS_5:
1663 	case SQ_ALU_CONST_CACHE_PS_6:
1664 	case SQ_ALU_CONST_CACHE_PS_7:
1665 	case SQ_ALU_CONST_CACHE_PS_8:
1666 	case SQ_ALU_CONST_CACHE_PS_9:
1667 	case SQ_ALU_CONST_CACHE_PS_10:
1668 	case SQ_ALU_CONST_CACHE_PS_11:
1669 	case SQ_ALU_CONST_CACHE_PS_12:
1670 	case SQ_ALU_CONST_CACHE_PS_13:
1671 	case SQ_ALU_CONST_CACHE_PS_14:
1672 	case SQ_ALU_CONST_CACHE_PS_15:
1673 	case SQ_ALU_CONST_CACHE_VS_0:
1674 	case SQ_ALU_CONST_CACHE_VS_1:
1675 	case SQ_ALU_CONST_CACHE_VS_2:
1676 	case SQ_ALU_CONST_CACHE_VS_3:
1677 	case SQ_ALU_CONST_CACHE_VS_4:
1678 	case SQ_ALU_CONST_CACHE_VS_5:
1679 	case SQ_ALU_CONST_CACHE_VS_6:
1680 	case SQ_ALU_CONST_CACHE_VS_7:
1681 	case SQ_ALU_CONST_CACHE_VS_8:
1682 	case SQ_ALU_CONST_CACHE_VS_9:
1683 	case SQ_ALU_CONST_CACHE_VS_10:
1684 	case SQ_ALU_CONST_CACHE_VS_11:
1685 	case SQ_ALU_CONST_CACHE_VS_12:
1686 	case SQ_ALU_CONST_CACHE_VS_13:
1687 	case SQ_ALU_CONST_CACHE_VS_14:
1688 	case SQ_ALU_CONST_CACHE_VS_15:
1689 	case SQ_ALU_CONST_CACHE_HS_0:
1690 	case SQ_ALU_CONST_CACHE_HS_1:
1691 	case SQ_ALU_CONST_CACHE_HS_2:
1692 	case SQ_ALU_CONST_CACHE_HS_3:
1693 	case SQ_ALU_CONST_CACHE_HS_4:
1694 	case SQ_ALU_CONST_CACHE_HS_5:
1695 	case SQ_ALU_CONST_CACHE_HS_6:
1696 	case SQ_ALU_CONST_CACHE_HS_7:
1697 	case SQ_ALU_CONST_CACHE_HS_8:
1698 	case SQ_ALU_CONST_CACHE_HS_9:
1699 	case SQ_ALU_CONST_CACHE_HS_10:
1700 	case SQ_ALU_CONST_CACHE_HS_11:
1701 	case SQ_ALU_CONST_CACHE_HS_12:
1702 	case SQ_ALU_CONST_CACHE_HS_13:
1703 	case SQ_ALU_CONST_CACHE_HS_14:
1704 	case SQ_ALU_CONST_CACHE_HS_15:
1705 	case SQ_ALU_CONST_CACHE_LS_0:
1706 	case SQ_ALU_CONST_CACHE_LS_1:
1707 	case SQ_ALU_CONST_CACHE_LS_2:
1708 	case SQ_ALU_CONST_CACHE_LS_3:
1709 	case SQ_ALU_CONST_CACHE_LS_4:
1710 	case SQ_ALU_CONST_CACHE_LS_5:
1711 	case SQ_ALU_CONST_CACHE_LS_6:
1712 	case SQ_ALU_CONST_CACHE_LS_7:
1713 	case SQ_ALU_CONST_CACHE_LS_8:
1714 	case SQ_ALU_CONST_CACHE_LS_9:
1715 	case SQ_ALU_CONST_CACHE_LS_10:
1716 	case SQ_ALU_CONST_CACHE_LS_11:
1717 	case SQ_ALU_CONST_CACHE_LS_12:
1718 	case SQ_ALU_CONST_CACHE_LS_13:
1719 	case SQ_ALU_CONST_CACHE_LS_14:
1720 	case SQ_ALU_CONST_CACHE_LS_15:
1721 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1722 		if (r) {
1723 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1724 					"0x%04X\n", reg);
1725 			return -EINVAL;
1726 		}
1727 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1728 		break;
1729 	case SX_MEMORY_EXPORT_BASE:
1730 		if (p->rdev->family >= CHIP_CAYMAN) {
1731 			dev_warn(p->dev, "bad SET_CONFIG_REG "
1732 				 "0x%04X\n", reg);
1733 			return -EINVAL;
1734 		}
1735 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1736 		if (r) {
1737 			dev_warn(p->dev, "bad SET_CONFIG_REG "
1738 					"0x%04X\n", reg);
1739 			return -EINVAL;
1740 		}
1741 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1742 		break;
1743 	case CAYMAN_SX_SCATTER_EXPORT_BASE:
1744 		if (p->rdev->family < CHIP_CAYMAN) {
1745 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1746 				 "0x%04X\n", reg);
1747 			return -EINVAL;
1748 		}
1749 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1750 		if (r) {
1751 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1752 					"0x%04X\n", reg);
1753 			return -EINVAL;
1754 		}
1755 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
1756 		break;
1757 	case SX_MISC:
1758 		track->sx_misc_kill_all_prims = (radeon_get_ib_value(p, idx) & 0x1) != 0;
1759 		break;
1760 	default:
1761 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1762 		return -EINVAL;
1763 	}
1764 	return 0;
1765 }
1766 
1767 static bool evergreen_is_safe_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
1768 {
1769 	u32 last_reg, m, i;
1770 
1771 	if (p->rdev->family >= CHIP_CAYMAN)
1772 		last_reg = ARRAY_SIZE(cayman_reg_safe_bm);
1773 	else
1774 		last_reg = ARRAY_SIZE(evergreen_reg_safe_bm);
1775 
1776 	i = (reg >> 7);
1777 	if (i >= last_reg) {
1778 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1779 		return false;
1780 	}
1781 	m = 1 << ((reg >> 2) & 31);
1782 	if (p->rdev->family >= CHIP_CAYMAN) {
1783 		if (!(cayman_reg_safe_bm[i] & m))
1784 			return true;
1785 	} else {
1786 		if (!(evergreen_reg_safe_bm[i] & m))
1787 			return true;
1788 	}
1789 	dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1790 	return false;
1791 }
1792 
1793 static int evergreen_packet3_check(struct radeon_cs_parser *p,
1794 				   struct radeon_cs_packet *pkt)
1795 {
1796 	struct radeon_bo_list *reloc;
1797 	struct evergreen_cs_track *track;
1798 	volatile u32 *ib;
1799 	unsigned idx;
1800 	unsigned i;
1801 	unsigned start_reg, end_reg, reg;
1802 	int r;
1803 	u32 idx_value;
1804 
1805 	track = (struct evergreen_cs_track *)p->track;
1806 	ib = p->ib.ptr;
1807 	idx = pkt->idx + 1;
1808 	idx_value = radeon_get_ib_value(p, idx);
1809 
1810 	switch (pkt->opcode) {
1811 	case PACKET3_SET_PREDICATION:
1812 	{
1813 		int pred_op;
1814 		int tmp;
1815 		uint64_t offset;
1816 
1817 		if (pkt->count != 1) {
1818 			DRM_ERROR("bad SET PREDICATION\n");
1819 			return -EINVAL;
1820 		}
1821 
1822 		tmp = radeon_get_ib_value(p, idx + 1);
1823 		pred_op = (tmp >> 16) & 0x7;
1824 
1825 		/* for the clear predicate operation */
1826 		if (pred_op == 0)
1827 			return 0;
1828 
1829 		if (pred_op > 2) {
1830 			DRM_ERROR("bad SET PREDICATION operation %d\n", pred_op);
1831 			return -EINVAL;
1832 		}
1833 
1834 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1835 		if (r) {
1836 			DRM_ERROR("bad SET PREDICATION\n");
1837 			return -EINVAL;
1838 		}
1839 
1840 		offset = reloc->gpu_offset +
1841 		         (idx_value & 0xfffffff0) +
1842 		         ((u64)(tmp & 0xff) << 32);
1843 
1844 		ib[idx + 0] = offset;
1845 		ib[idx + 1] = (tmp & 0xffffff00) | (upper_32_bits(offset) & 0xff);
1846 	}
1847 	break;
1848 	case PACKET3_CONTEXT_CONTROL:
1849 		if (pkt->count != 1) {
1850 			DRM_ERROR("bad CONTEXT_CONTROL\n");
1851 			return -EINVAL;
1852 		}
1853 		break;
1854 	case PACKET3_INDEX_TYPE:
1855 	case PACKET3_NUM_INSTANCES:
1856 	case PACKET3_CLEAR_STATE:
1857 		if (pkt->count) {
1858 			DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES/CLEAR_STATE\n");
1859 			return -EINVAL;
1860 		}
1861 		break;
1862 	case CAYMAN_PACKET3_DEALLOC_STATE:
1863 		if (p->rdev->family < CHIP_CAYMAN) {
1864 			DRM_ERROR("bad PACKET3_DEALLOC_STATE\n");
1865 			return -EINVAL;
1866 		}
1867 		if (pkt->count) {
1868 			DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES/CLEAR_STATE\n");
1869 			return -EINVAL;
1870 		}
1871 		break;
1872 	case PACKET3_INDEX_BASE:
1873 	{
1874 		uint64_t offset;
1875 
1876 		if (pkt->count != 1) {
1877 			DRM_ERROR("bad INDEX_BASE\n");
1878 			return -EINVAL;
1879 		}
1880 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1881 		if (r) {
1882 			DRM_ERROR("bad INDEX_BASE\n");
1883 			return -EINVAL;
1884 		}
1885 
1886 		offset = reloc->gpu_offset +
1887 		         idx_value +
1888 		         ((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
1889 
1890 		ib[idx+0] = offset;
1891 		ib[idx+1] = upper_32_bits(offset) & 0xff;
1892 
1893 		r = evergreen_cs_track_check(p);
1894 		if (r) {
1895 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1896 			return r;
1897 		}
1898 		break;
1899 	}
1900 	case PACKET3_INDEX_BUFFER_SIZE:
1901 	{
1902 		if (pkt->count != 0) {
1903 			DRM_ERROR("bad INDEX_BUFFER_SIZE\n");
1904 			return -EINVAL;
1905 		}
1906 		break;
1907 	}
1908 	case PACKET3_DRAW_INDEX:
1909 	{
1910 		uint64_t offset;
1911 		if (pkt->count != 3) {
1912 			DRM_ERROR("bad DRAW_INDEX\n");
1913 			return -EINVAL;
1914 		}
1915 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1916 		if (r) {
1917 			DRM_ERROR("bad DRAW_INDEX\n");
1918 			return -EINVAL;
1919 		}
1920 
1921 		offset = reloc->gpu_offset +
1922 		         idx_value +
1923 		         ((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
1924 
1925 		ib[idx+0] = offset;
1926 		ib[idx+1] = upper_32_bits(offset) & 0xff;
1927 
1928 		r = evergreen_cs_track_check(p);
1929 		if (r) {
1930 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1931 			return r;
1932 		}
1933 		break;
1934 	}
1935 	case PACKET3_DRAW_INDEX_2:
1936 	{
1937 		uint64_t offset;
1938 
1939 		if (pkt->count != 4) {
1940 			DRM_ERROR("bad DRAW_INDEX_2\n");
1941 			return -EINVAL;
1942 		}
1943 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1944 		if (r) {
1945 			DRM_ERROR("bad DRAW_INDEX_2\n");
1946 			return -EINVAL;
1947 		}
1948 
1949 		offset = reloc->gpu_offset +
1950 		         radeon_get_ib_value(p, idx+1) +
1951 		         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
1952 
1953 		ib[idx+1] = offset;
1954 		ib[idx+2] = upper_32_bits(offset) & 0xff;
1955 
1956 		r = evergreen_cs_track_check(p);
1957 		if (r) {
1958 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1959 			return r;
1960 		}
1961 		break;
1962 	}
1963 	case PACKET3_DRAW_INDEX_AUTO:
1964 		if (pkt->count != 1) {
1965 			DRM_ERROR("bad DRAW_INDEX_AUTO\n");
1966 			return -EINVAL;
1967 		}
1968 		r = evergreen_cs_track_check(p);
1969 		if (r) {
1970 			dev_warn(p->dev, "%s:%d invalid cmd stream %d\n", __func__, __LINE__, idx);
1971 			return r;
1972 		}
1973 		break;
1974 	case PACKET3_DRAW_INDEX_MULTI_AUTO:
1975 		if (pkt->count != 2) {
1976 			DRM_ERROR("bad DRAW_INDEX_MULTI_AUTO\n");
1977 			return -EINVAL;
1978 		}
1979 		r = evergreen_cs_track_check(p);
1980 		if (r) {
1981 			dev_warn(p->dev, "%s:%d invalid cmd stream %d\n", __func__, __LINE__, idx);
1982 			return r;
1983 		}
1984 		break;
1985 	case PACKET3_DRAW_INDEX_IMMD:
1986 		if (pkt->count < 2) {
1987 			DRM_ERROR("bad DRAW_INDEX_IMMD\n");
1988 			return -EINVAL;
1989 		}
1990 		r = evergreen_cs_track_check(p);
1991 		if (r) {
1992 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1993 			return r;
1994 		}
1995 		break;
1996 	case PACKET3_DRAW_INDEX_OFFSET:
1997 		if (pkt->count != 2) {
1998 			DRM_ERROR("bad DRAW_INDEX_OFFSET\n");
1999 			return -EINVAL;
2000 		}
2001 		r = evergreen_cs_track_check(p);
2002 		if (r) {
2003 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
2004 			return r;
2005 		}
2006 		break;
2007 	case PACKET3_DRAW_INDEX_OFFSET_2:
2008 		if (pkt->count != 3) {
2009 			DRM_ERROR("bad DRAW_INDEX_OFFSET_2\n");
2010 			return -EINVAL;
2011 		}
2012 		r = evergreen_cs_track_check(p);
2013 		if (r) {
2014 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
2015 			return r;
2016 		}
2017 		break;
2018 	case PACKET3_SET_BASE:
2019 	{
2020 		/*
2021 		DW 1 HEADER Header of the packet. Shader_Type in bit 1 of the Header will correspond to the shader type of the Load, see Type-3 Packet.
2022 		   2 BASE_INDEX Bits [3:0] BASE_INDEX - Base Index specifies which base address is specified in the last two DWs.
2023 		     0001: DX11 Draw_Index_Indirect Patch Table Base: Base address for Draw_Index_Indirect data.
2024 		   3 ADDRESS_LO Bits [31:3] - Lower bits of QWORD-Aligned Address. Bits [2:0] - Reserved
2025 		   4 ADDRESS_HI Bits [31:8] - Reserved. Bits [7:0] - Upper bits of Address [47:32]
2026 		*/
2027 		if (pkt->count != 2) {
2028 			DRM_ERROR("bad SET_BASE\n");
2029 			return -EINVAL;
2030 		}
2031 
2032 		/* currently only supporting setting indirect draw buffer base address */
2033 		if (idx_value != 1) {
2034 			DRM_ERROR("bad SET_BASE\n");
2035 			return -EINVAL;
2036 		}
2037 
2038 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2039 		if (r) {
2040 			DRM_ERROR("bad SET_BASE\n");
2041 			return -EINVAL;
2042 		}
2043 
2044 		track->indirect_draw_buffer_size = radeon_bo_size(reloc->robj);
2045 
2046 		ib[idx+1] = reloc->gpu_offset;
2047 		ib[idx+2] = upper_32_bits(reloc->gpu_offset) & 0xff;
2048 
2049 		break;
2050 	}
2051 	case PACKET3_DRAW_INDIRECT:
2052 	case PACKET3_DRAW_INDEX_INDIRECT:
2053 	{
2054 		u64 size = pkt->opcode == PACKET3_DRAW_INDIRECT ? 16 : 20;
2055 
2056 		/*
2057 		DW 1 HEADER
2058 		   2 DATA_OFFSET Bits [31:0] + byte aligned offset where the required data structure starts. Bits 1:0 are zero
2059 		   3 DRAW_INITIATOR Draw Initiator Register. Written to the VGT_DRAW_INITIATOR register for the assigned context
2060 		*/
2061 		if (pkt->count != 1) {
2062 			DRM_ERROR("bad DRAW_INDIRECT\n");
2063 			return -EINVAL;
2064 		}
2065 
2066 		if (idx_value + size > track->indirect_draw_buffer_size) {
2067 			dev_warn(p->dev, "DRAW_INDIRECT buffer too small %u + %llu > %lu\n",
2068 				idx_value, size, track->indirect_draw_buffer_size);
2069 			return -EINVAL;
2070 		}
2071 
2072 		r = evergreen_cs_track_check(p);
2073 		if (r) {
2074 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
2075 			return r;
2076 		}
2077 		break;
2078 	}
2079 	case PACKET3_DISPATCH_DIRECT:
2080 		if (pkt->count != 3) {
2081 			DRM_ERROR("bad DISPATCH_DIRECT\n");
2082 			return -EINVAL;
2083 		}
2084 		r = evergreen_cs_track_check(p);
2085 		if (r) {
2086 			dev_warn(p->dev, "%s:%d invalid cmd stream %d\n", __func__, __LINE__, idx);
2087 			return r;
2088 		}
2089 		break;
2090 	case PACKET3_DISPATCH_INDIRECT:
2091 		if (pkt->count != 1) {
2092 			DRM_ERROR("bad DISPATCH_INDIRECT\n");
2093 			return -EINVAL;
2094 		}
2095 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2096 		if (r) {
2097 			DRM_ERROR("bad DISPATCH_INDIRECT\n");
2098 			return -EINVAL;
2099 		}
2100 		ib[idx+0] = idx_value + (u32)(reloc->gpu_offset & 0xffffffff);
2101 		r = evergreen_cs_track_check(p);
2102 		if (r) {
2103 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
2104 			return r;
2105 		}
2106 		break;
2107 	case PACKET3_WAIT_REG_MEM:
2108 		if (pkt->count != 5) {
2109 			DRM_ERROR("bad WAIT_REG_MEM\n");
2110 			return -EINVAL;
2111 		}
2112 		/* bit 4 is reg (0) or mem (1) */
2113 		if (idx_value & 0x10) {
2114 			uint64_t offset;
2115 
2116 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2117 			if (r) {
2118 				DRM_ERROR("bad WAIT_REG_MEM\n");
2119 				return -EINVAL;
2120 			}
2121 
2122 			offset = reloc->gpu_offset +
2123 			         (radeon_get_ib_value(p, idx+1) & 0xfffffffc) +
2124 			         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
2125 
2126 			ib[idx+1] = (ib[idx+1] & 0x3) | (offset & 0xfffffffc);
2127 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2128 		} else if (idx_value & 0x100) {
2129 			DRM_ERROR("cannot use PFP on REG wait\n");
2130 			return -EINVAL;
2131 		}
2132 		break;
2133 	case PACKET3_CP_DMA:
2134 	{
2135 		u32 command, size, info;
2136 		u64 offset, tmp;
2137 		if (pkt->count != 4) {
2138 			DRM_ERROR("bad CP DMA\n");
2139 			return -EINVAL;
2140 		}
2141 		command = radeon_get_ib_value(p, idx+4);
2142 		size = command & 0x1fffff;
2143 		info = radeon_get_ib_value(p, idx+1);
2144 		if ((((info & 0x60000000) >> 29) != 0) || /* src = GDS or DATA */
2145 		    (((info & 0x00300000) >> 20) != 0) || /* dst = GDS */
2146 		    ((((info & 0x00300000) >> 20) == 0) &&
2147 		     (command & PACKET3_CP_DMA_CMD_DAS)) || /* dst = register */
2148 		    ((((info & 0x60000000) >> 29) == 0) &&
2149 		     (command & PACKET3_CP_DMA_CMD_SAS))) { /* src = register */
2150 			/* non mem to mem copies requires dw aligned count */
2151 			if (size % 4) {
2152 				DRM_ERROR("CP DMA command requires dw count alignment\n");
2153 				return -EINVAL;
2154 			}
2155 		}
2156 		if (command & PACKET3_CP_DMA_CMD_SAS) {
2157 			/* src address space is register */
2158 			/* GDS is ok */
2159 			if (((info & 0x60000000) >> 29) != 1) {
2160 				DRM_ERROR("CP DMA SAS not supported\n");
2161 				return -EINVAL;
2162 			}
2163 		} else {
2164 			if (command & PACKET3_CP_DMA_CMD_SAIC) {
2165 				DRM_ERROR("CP DMA SAIC only supported for registers\n");
2166 				return -EINVAL;
2167 			}
2168 			/* src address space is memory */
2169 			if (((info & 0x60000000) >> 29) == 0) {
2170 				r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2171 				if (r) {
2172 					DRM_ERROR("bad CP DMA SRC\n");
2173 					return -EINVAL;
2174 				}
2175 
2176 				tmp = radeon_get_ib_value(p, idx) +
2177 					((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
2178 
2179 				offset = reloc->gpu_offset + tmp;
2180 
2181 				if ((tmp + size) > radeon_bo_size(reloc->robj)) {
2182 					dev_warn(p->dev, "CP DMA src buffer too small (%llu %lu)\n",
2183 						 tmp + size, radeon_bo_size(reloc->robj));
2184 					return -EINVAL;
2185 				}
2186 
2187 				ib[idx] = offset;
2188 				ib[idx+1] = (ib[idx+1] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
2189 			} else if (((info & 0x60000000) >> 29) != 2) {
2190 				DRM_ERROR("bad CP DMA SRC_SEL\n");
2191 				return -EINVAL;
2192 			}
2193 		}
2194 		if (command & PACKET3_CP_DMA_CMD_DAS) {
2195 			/* dst address space is register */
2196 			/* GDS is ok */
2197 			if (((info & 0x00300000) >> 20) != 1) {
2198 				DRM_ERROR("CP DMA DAS not supported\n");
2199 				return -EINVAL;
2200 			}
2201 		} else {
2202 			/* dst address space is memory */
2203 			if (command & PACKET3_CP_DMA_CMD_DAIC) {
2204 				DRM_ERROR("CP DMA DAIC only supported for registers\n");
2205 				return -EINVAL;
2206 			}
2207 			if (((info & 0x00300000) >> 20) == 0) {
2208 				r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2209 				if (r) {
2210 					DRM_ERROR("bad CP DMA DST\n");
2211 					return -EINVAL;
2212 				}
2213 
2214 				tmp = radeon_get_ib_value(p, idx+2) +
2215 					((u64)(radeon_get_ib_value(p, idx+3) & 0xff) << 32);
2216 
2217 				offset = reloc->gpu_offset + tmp;
2218 
2219 				if ((tmp + size) > radeon_bo_size(reloc->robj)) {
2220 					dev_warn(p->dev, "CP DMA dst buffer too small (%llu %lu)\n",
2221 						 tmp + size, radeon_bo_size(reloc->robj));
2222 					return -EINVAL;
2223 				}
2224 
2225 				ib[idx+2] = offset;
2226 				ib[idx+3] = upper_32_bits(offset) & 0xff;
2227 			} else {
2228 				DRM_ERROR("bad CP DMA DST_SEL\n");
2229 				return -EINVAL;
2230 			}
2231 		}
2232 		break;
2233 	}
2234 	case PACKET3_SURFACE_SYNC:
2235 		if (pkt->count != 3) {
2236 			DRM_ERROR("bad SURFACE_SYNC\n");
2237 			return -EINVAL;
2238 		}
2239 		/* 0xffffffff/0x0 is flush all cache flag */
2240 		if (radeon_get_ib_value(p, idx + 1) != 0xffffffff ||
2241 		    radeon_get_ib_value(p, idx + 2) != 0) {
2242 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2243 			if (r) {
2244 				DRM_ERROR("bad SURFACE_SYNC\n");
2245 				return -EINVAL;
2246 			}
2247 			ib[idx+2] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
2248 		}
2249 		break;
2250 	case PACKET3_EVENT_WRITE:
2251 		if (pkt->count != 2 && pkt->count != 0) {
2252 			DRM_ERROR("bad EVENT_WRITE\n");
2253 			return -EINVAL;
2254 		}
2255 		if (pkt->count) {
2256 			uint64_t offset;
2257 
2258 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2259 			if (r) {
2260 				DRM_ERROR("bad EVENT_WRITE\n");
2261 				return -EINVAL;
2262 			}
2263 			offset = reloc->gpu_offset +
2264 			         (radeon_get_ib_value(p, idx+1) & 0xfffffff8) +
2265 			         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
2266 
2267 			ib[idx+1] = offset & 0xfffffff8;
2268 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2269 		}
2270 		break;
2271 	case PACKET3_EVENT_WRITE_EOP:
2272 	{
2273 		uint64_t offset;
2274 
2275 		if (pkt->count != 4) {
2276 			DRM_ERROR("bad EVENT_WRITE_EOP\n");
2277 			return -EINVAL;
2278 		}
2279 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2280 		if (r) {
2281 			DRM_ERROR("bad EVENT_WRITE_EOP\n");
2282 			return -EINVAL;
2283 		}
2284 
2285 		offset = reloc->gpu_offset +
2286 		         (radeon_get_ib_value(p, idx+1) & 0xfffffffc) +
2287 		         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
2288 
2289 		ib[idx+1] = offset & 0xfffffffc;
2290 		ib[idx+2] = (ib[idx+2] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
2291 		break;
2292 	}
2293 	case PACKET3_EVENT_WRITE_EOS:
2294 	{
2295 		uint64_t offset;
2296 
2297 		if (pkt->count != 3) {
2298 			DRM_ERROR("bad EVENT_WRITE_EOS\n");
2299 			return -EINVAL;
2300 		}
2301 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2302 		if (r) {
2303 			DRM_ERROR("bad EVENT_WRITE_EOS\n");
2304 			return -EINVAL;
2305 		}
2306 
2307 		offset = reloc->gpu_offset +
2308 		         (radeon_get_ib_value(p, idx+1) & 0xfffffffc) +
2309 		         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
2310 
2311 		ib[idx+1] = offset & 0xfffffffc;
2312 		ib[idx+2] = (ib[idx+2] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
2313 		break;
2314 	}
2315 	case PACKET3_SET_CONFIG_REG:
2316 		start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_START;
2317 		end_reg = 4 * pkt->count + start_reg - 4;
2318 		if ((start_reg < PACKET3_SET_CONFIG_REG_START) ||
2319 		    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
2320 		    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
2321 			DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
2322 			return -EINVAL;
2323 		}
2324 		for (i = 0; i < pkt->count; i++) {
2325 			reg = start_reg + (4 * i);
2326 			r = evergreen_cs_check_reg(p, reg, idx+1+i);
2327 			if (r)
2328 				return r;
2329 		}
2330 		break;
2331 	case PACKET3_SET_CONTEXT_REG:
2332 		start_reg = (idx_value << 2) + PACKET3_SET_CONTEXT_REG_START;
2333 		end_reg = 4 * pkt->count + start_reg - 4;
2334 		if ((start_reg < PACKET3_SET_CONTEXT_REG_START) ||
2335 		    (start_reg >= PACKET3_SET_CONTEXT_REG_END) ||
2336 		    (end_reg >= PACKET3_SET_CONTEXT_REG_END)) {
2337 			DRM_ERROR("bad PACKET3_SET_CONTEXT_REG\n");
2338 			return -EINVAL;
2339 		}
2340 		for (i = 0; i < pkt->count; i++) {
2341 			reg = start_reg + (4 * i);
2342 			r = evergreen_cs_check_reg(p, reg, idx+1+i);
2343 			if (r)
2344 				return r;
2345 		}
2346 		break;
2347 	case PACKET3_SET_RESOURCE:
2348 		if (pkt->count % 8) {
2349 			DRM_ERROR("bad SET_RESOURCE\n");
2350 			return -EINVAL;
2351 		}
2352 		start_reg = (idx_value << 2) + PACKET3_SET_RESOURCE_START;
2353 		end_reg = 4 * pkt->count + start_reg - 4;
2354 		if ((start_reg < PACKET3_SET_RESOURCE_START) ||
2355 		    (start_reg >= PACKET3_SET_RESOURCE_END) ||
2356 		    (end_reg >= PACKET3_SET_RESOURCE_END)) {
2357 			DRM_ERROR("bad SET_RESOURCE\n");
2358 			return -EINVAL;
2359 		}
2360 		for (i = 0; i < (pkt->count / 8); i++) {
2361 			struct radeon_bo *texture, *mipmap;
2362 			u32 toffset, moffset;
2363 			u32 size, offset, mip_address, tex_dim;
2364 
2365 			switch (G__SQ_CONSTANT_TYPE(radeon_get_ib_value(p, idx+1+(i*8)+7))) {
2366 			case SQ_TEX_VTX_VALID_TEXTURE:
2367 				/* tex base */
2368 				r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2369 				if (r) {
2370 					DRM_ERROR("bad SET_RESOURCE (tex)\n");
2371 					return -EINVAL;
2372 				}
2373 				if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
2374 					ib[idx+1+(i*8)+1] |=
2375 						TEX_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->tiling_flags));
2376 					if (reloc->tiling_flags & RADEON_TILING_MACRO) {
2377 						unsigned bankw, bankh, mtaspect, tile_split;
2378 
2379 						evergreen_tiling_fields(reloc->tiling_flags,
2380 									&bankw, &bankh, &mtaspect,
2381 									&tile_split);
2382 						ib[idx+1+(i*8)+6] |= TEX_TILE_SPLIT(tile_split);
2383 						ib[idx+1+(i*8)+7] |=
2384 							TEX_BANK_WIDTH(bankw) |
2385 							TEX_BANK_HEIGHT(bankh) |
2386 							MACRO_TILE_ASPECT(mtaspect) |
2387 							TEX_NUM_BANKS(evergreen_cs_get_num_banks(track->nbanks));
2388 					}
2389 				}
2390 				texture = reloc->robj;
2391 				toffset = (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
2392 
2393 				/* tex mip base */
2394 				tex_dim = ib[idx+1+(i*8)+0] & 0x7;
2395 				mip_address = ib[idx+1+(i*8)+3];
2396 
2397 				if ((tex_dim == SQ_TEX_DIM_2D_MSAA || tex_dim == SQ_TEX_DIM_2D_ARRAY_MSAA) &&
2398 				    !mip_address &&
2399 				    !radeon_cs_packet_next_is_pkt3_nop(p)) {
2400 					/* MIP_ADDRESS should point to FMASK for an MSAA texture.
2401 					 * It should be 0 if FMASK is disabled. */
2402 					moffset = 0;
2403 					mipmap = NULL;
2404 				} else {
2405 					r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2406 					if (r) {
2407 						DRM_ERROR("bad SET_RESOURCE (tex)\n");
2408 						return -EINVAL;
2409 					}
2410 					moffset = (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
2411 					mipmap = reloc->robj;
2412 				}
2413 
2414 				r = evergreen_cs_track_validate_texture(p, texture, mipmap, idx+1+(i*8));
2415 				if (r)
2416 					return r;
2417 				ib[idx+1+(i*8)+2] += toffset;
2418 				ib[idx+1+(i*8)+3] += moffset;
2419 				break;
2420 			case SQ_TEX_VTX_VALID_BUFFER:
2421 			{
2422 				uint64_t offset64;
2423 				/* vtx base */
2424 				r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2425 				if (r) {
2426 					DRM_ERROR("bad SET_RESOURCE (vtx)\n");
2427 					return -EINVAL;
2428 				}
2429 				offset = radeon_get_ib_value(p, idx+1+(i*8)+0);
2430 				size = radeon_get_ib_value(p, idx+1+(i*8)+1);
2431 				if (p->rdev && (size + offset) > radeon_bo_size(reloc->robj)) {
2432 					/* force size to size of the buffer */
2433 					dev_warn(p->dev, "vbo resource seems too big for the bo\n");
2434 					ib[idx+1+(i*8)+1] = radeon_bo_size(reloc->robj) - offset;
2435 				}
2436 
2437 				offset64 = reloc->gpu_offset + offset;
2438 				ib[idx+1+(i*8)+0] = offset64;
2439 				ib[idx+1+(i*8)+2] = (ib[idx+1+(i*8)+2] & 0xffffff00) |
2440 						    (upper_32_bits(offset64) & 0xff);
2441 				break;
2442 			}
2443 			case SQ_TEX_VTX_INVALID_TEXTURE:
2444 			case SQ_TEX_VTX_INVALID_BUFFER:
2445 			default:
2446 				DRM_ERROR("bad SET_RESOURCE\n");
2447 				return -EINVAL;
2448 			}
2449 		}
2450 		break;
2451 	case PACKET3_SET_ALU_CONST:
2452 		/* XXX fix me ALU const buffers only */
2453 		break;
2454 	case PACKET3_SET_BOOL_CONST:
2455 		start_reg = (idx_value << 2) + PACKET3_SET_BOOL_CONST_START;
2456 		end_reg = 4 * pkt->count + start_reg - 4;
2457 		if ((start_reg < PACKET3_SET_BOOL_CONST_START) ||
2458 		    (start_reg >= PACKET3_SET_BOOL_CONST_END) ||
2459 		    (end_reg >= PACKET3_SET_BOOL_CONST_END)) {
2460 			DRM_ERROR("bad SET_BOOL_CONST\n");
2461 			return -EINVAL;
2462 		}
2463 		break;
2464 	case PACKET3_SET_LOOP_CONST:
2465 		start_reg = (idx_value << 2) + PACKET3_SET_LOOP_CONST_START;
2466 		end_reg = 4 * pkt->count + start_reg - 4;
2467 		if ((start_reg < PACKET3_SET_LOOP_CONST_START) ||
2468 		    (start_reg >= PACKET3_SET_LOOP_CONST_END) ||
2469 		    (end_reg >= PACKET3_SET_LOOP_CONST_END)) {
2470 			DRM_ERROR("bad SET_LOOP_CONST\n");
2471 			return -EINVAL;
2472 		}
2473 		break;
2474 	case PACKET3_SET_CTL_CONST:
2475 		start_reg = (idx_value << 2) + PACKET3_SET_CTL_CONST_START;
2476 		end_reg = 4 * pkt->count + start_reg - 4;
2477 		if ((start_reg < PACKET3_SET_CTL_CONST_START) ||
2478 		    (start_reg >= PACKET3_SET_CTL_CONST_END) ||
2479 		    (end_reg >= PACKET3_SET_CTL_CONST_END)) {
2480 			DRM_ERROR("bad SET_CTL_CONST\n");
2481 			return -EINVAL;
2482 		}
2483 		break;
2484 	case PACKET3_SET_SAMPLER:
2485 		if (pkt->count % 3) {
2486 			DRM_ERROR("bad SET_SAMPLER\n");
2487 			return -EINVAL;
2488 		}
2489 		start_reg = (idx_value << 2) + PACKET3_SET_SAMPLER_START;
2490 		end_reg = 4 * pkt->count + start_reg - 4;
2491 		if ((start_reg < PACKET3_SET_SAMPLER_START) ||
2492 		    (start_reg >= PACKET3_SET_SAMPLER_END) ||
2493 		    (end_reg >= PACKET3_SET_SAMPLER_END)) {
2494 			DRM_ERROR("bad SET_SAMPLER\n");
2495 			return -EINVAL;
2496 		}
2497 		break;
2498 	case PACKET3_STRMOUT_BUFFER_UPDATE:
2499 		if (pkt->count != 4) {
2500 			DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (invalid count)\n");
2501 			return -EINVAL;
2502 		}
2503 		/* Updating memory at DST_ADDRESS. */
2504 		if (idx_value & 0x1) {
2505 			u64 offset;
2506 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2507 			if (r) {
2508 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (missing dst reloc)\n");
2509 				return -EINVAL;
2510 			}
2511 			offset = radeon_get_ib_value(p, idx+1);
2512 			offset += ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
2513 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2514 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE dst bo too small: 0x%llx, 0x%lx\n",
2515 					  offset + 4, radeon_bo_size(reloc->robj));
2516 				return -EINVAL;
2517 			}
2518 			offset += reloc->gpu_offset;
2519 			ib[idx+1] = offset;
2520 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2521 		}
2522 		/* Reading data from SRC_ADDRESS. */
2523 		if (((idx_value >> 1) & 0x3) == 2) {
2524 			u64 offset;
2525 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2526 			if (r) {
2527 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (missing src reloc)\n");
2528 				return -EINVAL;
2529 			}
2530 			offset = radeon_get_ib_value(p, idx+3);
2531 			offset += ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2532 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2533 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE src bo too small: 0x%llx, 0x%lx\n",
2534 					  offset + 4, radeon_bo_size(reloc->robj));
2535 				return -EINVAL;
2536 			}
2537 			offset += reloc->gpu_offset;
2538 			ib[idx+3] = offset;
2539 			ib[idx+4] = upper_32_bits(offset) & 0xff;
2540 		}
2541 		break;
2542 	case PACKET3_MEM_WRITE:
2543 	{
2544 		u64 offset;
2545 
2546 		if (pkt->count != 3) {
2547 			DRM_ERROR("bad MEM_WRITE (invalid count)\n");
2548 			return -EINVAL;
2549 		}
2550 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2551 		if (r) {
2552 			DRM_ERROR("bad MEM_WRITE (missing reloc)\n");
2553 			return -EINVAL;
2554 		}
2555 		offset = radeon_get_ib_value(p, idx+0);
2556 		offset += ((u64)(radeon_get_ib_value(p, idx+1) & 0xff)) << 32UL;
2557 		if (offset & 0x7) {
2558 			DRM_ERROR("bad MEM_WRITE (address not qwords aligned)\n");
2559 			return -EINVAL;
2560 		}
2561 		if ((offset + 8) > radeon_bo_size(reloc->robj)) {
2562 			DRM_ERROR("bad MEM_WRITE bo too small: 0x%llx, 0x%lx\n",
2563 				  offset + 8, radeon_bo_size(reloc->robj));
2564 			return -EINVAL;
2565 		}
2566 		offset += reloc->gpu_offset;
2567 		ib[idx+0] = offset;
2568 		ib[idx+1] = upper_32_bits(offset) & 0xff;
2569 		break;
2570 	}
2571 	case PACKET3_COPY_DW:
2572 		if (pkt->count != 4) {
2573 			DRM_ERROR("bad COPY_DW (invalid count)\n");
2574 			return -EINVAL;
2575 		}
2576 		if (idx_value & 0x1) {
2577 			u64 offset;
2578 			/* SRC is memory. */
2579 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2580 			if (r) {
2581 				DRM_ERROR("bad COPY_DW (missing src reloc)\n");
2582 				return -EINVAL;
2583 			}
2584 			offset = radeon_get_ib_value(p, idx+1);
2585 			offset += ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
2586 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2587 				DRM_ERROR("bad COPY_DW src bo too small: 0x%llx, 0x%lx\n",
2588 					  offset + 4, radeon_bo_size(reloc->robj));
2589 				return -EINVAL;
2590 			}
2591 			offset += reloc->gpu_offset;
2592 			ib[idx+1] = offset;
2593 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2594 		} else {
2595 			/* SRC is a reg. */
2596 			reg = radeon_get_ib_value(p, idx+1) << 2;
2597 			if (!evergreen_is_safe_reg(p, reg, idx+1))
2598 				return -EINVAL;
2599 		}
2600 		if (idx_value & 0x2) {
2601 			u64 offset;
2602 			/* DST is memory. */
2603 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
2604 			if (r) {
2605 				DRM_ERROR("bad COPY_DW (missing dst reloc)\n");
2606 				return -EINVAL;
2607 			}
2608 			offset = radeon_get_ib_value(p, idx+3);
2609 			offset += ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2610 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2611 				DRM_ERROR("bad COPY_DW dst bo too small: 0x%llx, 0x%lx\n",
2612 					  offset + 4, radeon_bo_size(reloc->robj));
2613 				return -EINVAL;
2614 			}
2615 			offset += reloc->gpu_offset;
2616 			ib[idx+3] = offset;
2617 			ib[idx+4] = upper_32_bits(offset) & 0xff;
2618 		} else {
2619 			/* DST is a reg. */
2620 			reg = radeon_get_ib_value(p, idx+3) << 2;
2621 			if (!evergreen_is_safe_reg(p, reg, idx+3))
2622 				return -EINVAL;
2623 		}
2624 		break;
2625 	case PACKET3_NOP:
2626 		break;
2627 	default:
2628 		DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
2629 		return -EINVAL;
2630 	}
2631 	return 0;
2632 }
2633 
2634 int evergreen_cs_parse(struct radeon_cs_parser *p)
2635 {
2636 	struct radeon_cs_packet pkt;
2637 	struct evergreen_cs_track *track;
2638 	u32 tmp;
2639 	int r;
2640 
2641 	if (p->track == NULL) {
2642 		/* initialize tracker, we are in kms */
2643 		track = kzalloc(sizeof(*track), GFP_KERNEL);
2644 		if (track == NULL)
2645 			return -ENOMEM;
2646 		evergreen_cs_track_init(track);
2647 		if (p->rdev->family >= CHIP_CAYMAN)
2648 			tmp = p->rdev->config.cayman.tile_config;
2649 		else
2650 			tmp = p->rdev->config.evergreen.tile_config;
2651 
2652 		switch (tmp & 0xf) {
2653 		case 0:
2654 			track->npipes = 1;
2655 			break;
2656 		case 1:
2657 		default:
2658 			track->npipes = 2;
2659 			break;
2660 		case 2:
2661 			track->npipes = 4;
2662 			break;
2663 		case 3:
2664 			track->npipes = 8;
2665 			break;
2666 		}
2667 
2668 		switch ((tmp & 0xf0) >> 4) {
2669 		case 0:
2670 			track->nbanks = 4;
2671 			break;
2672 		case 1:
2673 		default:
2674 			track->nbanks = 8;
2675 			break;
2676 		case 2:
2677 			track->nbanks = 16;
2678 			break;
2679 		}
2680 
2681 		switch ((tmp & 0xf00) >> 8) {
2682 		case 0:
2683 			track->group_size = 256;
2684 			break;
2685 		case 1:
2686 		default:
2687 			track->group_size = 512;
2688 			break;
2689 		}
2690 
2691 		switch ((tmp & 0xf000) >> 12) {
2692 		case 0:
2693 			track->row_size = 1;
2694 			break;
2695 		case 1:
2696 		default:
2697 			track->row_size = 2;
2698 			break;
2699 		case 2:
2700 			track->row_size = 4;
2701 			break;
2702 		}
2703 
2704 		p->track = track;
2705 	}
2706 	do {
2707 		r = radeon_cs_packet_parse(p, &pkt, p->idx);
2708 		if (r) {
2709 			kfree(p->track);
2710 			p->track = NULL;
2711 			return r;
2712 		}
2713 		p->idx += pkt.count + 2;
2714 		switch (pkt.type) {
2715 		case RADEON_PACKET_TYPE0:
2716 			r = evergreen_cs_parse_packet0(p, &pkt);
2717 			break;
2718 		case RADEON_PACKET_TYPE2:
2719 			break;
2720 		case RADEON_PACKET_TYPE3:
2721 			r = evergreen_packet3_check(p, &pkt);
2722 			break;
2723 		default:
2724 			DRM_ERROR("Unknown packet type %d !\n", pkt.type);
2725 			kfree(p->track);
2726 			p->track = NULL;
2727 			return -EINVAL;
2728 		}
2729 		if (r) {
2730 			kfree(p->track);
2731 			p->track = NULL;
2732 			return r;
2733 		}
2734 	} while (p->idx < p->chunk_ib->length_dw);
2735 #if 0
2736 	for (r = 0; r < p->ib.length_dw; r++) {
2737 		printk(KERN_INFO "%05d  0x%08X\n", r, p->ib.ptr[r]);
2738 		mdelay(1);
2739 	}
2740 #endif
2741 	kfree(p->track);
2742 	p->track = NULL;
2743 	return 0;
2744 }
2745 
2746 /**
2747  * evergreen_dma_cs_parse() - parse the DMA IB
2748  * @p:		parser structure holding parsing context.
2749  *
2750  * Parses the DMA IB from the CS ioctl and updates
2751  * the GPU addresses based on the reloc information and
2752  * checks for errors. (Evergreen-Cayman)
2753  * Returns 0 for success and an error on failure.
2754  **/
2755 int evergreen_dma_cs_parse(struct radeon_cs_parser *p)
2756 {
2757 	struct radeon_cs_chunk *ib_chunk = p->chunk_ib;
2758 	struct radeon_bo_list *src_reloc, *dst_reloc, *dst2_reloc;
2759 	u32 header, cmd, count, sub_cmd;
2760 	volatile u32 *ib = p->ib.ptr;
2761 	u32 idx;
2762 	u64 src_offset, dst_offset, dst2_offset;
2763 	int r;
2764 
2765 	do {
2766 		if (p->idx >= ib_chunk->length_dw) {
2767 			DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
2768 				  p->idx, ib_chunk->length_dw);
2769 			return -EINVAL;
2770 		}
2771 		idx = p->idx;
2772 		header = radeon_get_ib_value(p, idx);
2773 		cmd = GET_DMA_CMD(header);
2774 		count = GET_DMA_COUNT(header);
2775 		sub_cmd = GET_DMA_SUB_CMD(header);
2776 
2777 		switch (cmd) {
2778 		case DMA_PACKET_WRITE:
2779 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
2780 			if (r) {
2781 				DRM_ERROR("bad DMA_PACKET_WRITE\n");
2782 				return -EINVAL;
2783 			}
2784 			switch (sub_cmd) {
2785 			/* tiled */
2786 			case 8:
2787 				dst_offset = radeon_get_ib_value(p, idx+1);
2788 				dst_offset <<= 8;
2789 
2790 				ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
2791 				p->idx += count + 7;
2792 				break;
2793 			/* linear */
2794 			case 0:
2795 				dst_offset = radeon_get_ib_value(p, idx+1);
2796 				dst_offset |= ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
2797 
2798 				ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
2799 				ib[idx+2] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
2800 				p->idx += count + 3;
2801 				break;
2802 			default:
2803 				DRM_ERROR("bad DMA_PACKET_WRITE [%6d] 0x%08x sub cmd is not 0 or 8\n", idx, header);
2804 				return -EINVAL;
2805 			}
2806 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2807 				dev_warn(p->dev, "DMA write buffer too small (%llu %lu)\n",
2808 					 dst_offset, radeon_bo_size(dst_reloc->robj));
2809 				return -EINVAL;
2810 			}
2811 			break;
2812 		case DMA_PACKET_COPY:
2813 			r = r600_dma_cs_next_reloc(p, &src_reloc);
2814 			if (r) {
2815 				DRM_ERROR("bad DMA_PACKET_COPY\n");
2816 				return -EINVAL;
2817 			}
2818 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
2819 			if (r) {
2820 				DRM_ERROR("bad DMA_PACKET_COPY\n");
2821 				return -EINVAL;
2822 			}
2823 			switch (sub_cmd) {
2824 			/* Copy L2L, DW aligned */
2825 			case 0x00:
2826 				/* L2L, dw */
2827 				src_offset = radeon_get_ib_value(p, idx+2);
2828 				src_offset |= ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2829 				dst_offset = radeon_get_ib_value(p, idx+1);
2830 				dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff)) << 32;
2831 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
2832 					dev_warn(p->dev, "DMA L2L, dw src buffer too small (%llu %lu)\n",
2833 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
2834 					return -EINVAL;
2835 				}
2836 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2837 					dev_warn(p->dev, "DMA L2L, dw dst buffer too small (%llu %lu)\n",
2838 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2839 					return -EINVAL;
2840 				}
2841 				ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
2842 				ib[idx+2] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
2843 				ib[idx+3] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
2844 				ib[idx+4] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
2845 				p->idx += 5;
2846 				break;
2847 			/* Copy L2T/T2L */
2848 			case 0x08:
2849 				/* detile bit */
2850 				if (radeon_get_ib_value(p, idx + 2) & (1 << 31)) {
2851 					/* tiled src, linear dst */
2852 					src_offset = radeon_get_ib_value(p, idx+1);
2853 					src_offset <<= 8;
2854 					ib[idx+1] += (u32)(src_reloc->gpu_offset >> 8);
2855 
2856 					dst_offset = radeon_get_ib_value(p, idx + 7);
2857 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+8) & 0xff)) << 32;
2858 					ib[idx+7] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
2859 					ib[idx+8] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
2860 				} else {
2861 					/* linear src, tiled dst */
2862 					src_offset = radeon_get_ib_value(p, idx+7);
2863 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+8) & 0xff)) << 32;
2864 					ib[idx+7] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
2865 					ib[idx+8] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
2866 
2867 					dst_offset = radeon_get_ib_value(p, idx+1);
2868 					dst_offset <<= 8;
2869 					ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
2870 				}
2871 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
2872 					dev_warn(p->dev, "DMA L2T, src buffer too small (%llu %lu)\n",
2873 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
2874 					return -EINVAL;
2875 				}
2876 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2877 					dev_warn(p->dev, "DMA L2T, dst buffer too small (%llu %lu)\n",
2878 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2879 					return -EINVAL;
2880 				}
2881 				p->idx += 9;
2882 				break;
2883 			/* Copy L2L, byte aligned */
2884 			case 0x40:
2885 				/* L2L, byte */
2886 				src_offset = radeon_get_ib_value(p, idx+2);
2887 				src_offset |= ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2888 				dst_offset = radeon_get_ib_value(p, idx+1);
2889 				dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff)) << 32;
2890 				if ((src_offset + count) > radeon_bo_size(src_reloc->robj)) {
2891 					dev_warn(p->dev, "DMA L2L, byte src buffer too small (%llu %lu)\n",
2892 							src_offset + count, radeon_bo_size(src_reloc->robj));
2893 					return -EINVAL;
2894 				}
2895 				if ((dst_offset + count) > radeon_bo_size(dst_reloc->robj)) {
2896 					dev_warn(p->dev, "DMA L2L, byte dst buffer too small (%llu %lu)\n",
2897 							dst_offset + count, radeon_bo_size(dst_reloc->robj));
2898 					return -EINVAL;
2899 				}
2900 				ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xffffffff);
2901 				ib[idx+2] += (u32)(src_reloc->gpu_offset & 0xffffffff);
2902 				ib[idx+3] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
2903 				ib[idx+4] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
2904 				p->idx += 5;
2905 				break;
2906 			/* Copy L2L, partial */
2907 			case 0x41:
2908 				/* L2L, partial */
2909 				if (p->family < CHIP_CAYMAN) {
2910 					DRM_ERROR("L2L Partial is cayman only !\n");
2911 					return -EINVAL;
2912 				}
2913 				ib[idx+1] += (u32)(src_reloc->gpu_offset & 0xffffffff);
2914 				ib[idx+2] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
2915 				ib[idx+4] += (u32)(dst_reloc->gpu_offset & 0xffffffff);
2916 				ib[idx+5] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
2917 
2918 				p->idx += 9;
2919 				break;
2920 			/* Copy L2L, DW aligned, broadcast */
2921 			case 0x44:
2922 				/* L2L, dw, broadcast */
2923 				r = r600_dma_cs_next_reloc(p, &dst2_reloc);
2924 				if (r) {
2925 					DRM_ERROR("bad L2L, dw, broadcast DMA_PACKET_COPY\n");
2926 					return -EINVAL;
2927 				}
2928 				dst_offset = radeon_get_ib_value(p, idx+1);
2929 				dst_offset |= ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2930 				dst2_offset = radeon_get_ib_value(p, idx+2);
2931 				dst2_offset |= ((u64)(radeon_get_ib_value(p, idx+5) & 0xff)) << 32;
2932 				src_offset = radeon_get_ib_value(p, idx+3);
2933 				src_offset |= ((u64)(radeon_get_ib_value(p, idx+6) & 0xff)) << 32;
2934 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
2935 					dev_warn(p->dev, "DMA L2L, dw, broadcast src buffer too small (%llu %lu)\n",
2936 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
2937 					return -EINVAL;
2938 				}
2939 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2940 					dev_warn(p->dev, "DMA L2L, dw, broadcast dst buffer too small (%llu %lu)\n",
2941 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2942 					return -EINVAL;
2943 				}
2944 				if ((dst2_offset + (count * 4)) > radeon_bo_size(dst2_reloc->robj)) {
2945 					dev_warn(p->dev, "DMA L2L, dw, broadcast dst2 buffer too small (%llu %lu)\n",
2946 							dst2_offset + (count * 4), radeon_bo_size(dst2_reloc->robj));
2947 					return -EINVAL;
2948 				}
2949 				ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
2950 				ib[idx+2] += (u32)(dst2_reloc->gpu_offset & 0xfffffffc);
2951 				ib[idx+3] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
2952 				ib[idx+4] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
2953 				ib[idx+5] += upper_32_bits(dst2_reloc->gpu_offset) & 0xff;
2954 				ib[idx+6] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
2955 				p->idx += 7;
2956 				break;
2957 			/* Copy L2T Frame to Field */
2958 			case 0x48:
2959 				if (radeon_get_ib_value(p, idx + 2) & (1 << 31)) {
2960 					DRM_ERROR("bad L2T, frame to fields DMA_PACKET_COPY\n");
2961 					return -EINVAL;
2962 				}
2963 				r = r600_dma_cs_next_reloc(p, &dst2_reloc);
2964 				if (r) {
2965 					DRM_ERROR("bad L2T, frame to fields DMA_PACKET_COPY\n");
2966 					return -EINVAL;
2967 				}
2968 				dst_offset = radeon_get_ib_value(p, idx+1);
2969 				dst_offset <<= 8;
2970 				dst2_offset = radeon_get_ib_value(p, idx+2);
2971 				dst2_offset <<= 8;
2972 				src_offset = radeon_get_ib_value(p, idx+8);
2973 				src_offset |= ((u64)(radeon_get_ib_value(p, idx+9) & 0xff)) << 32;
2974 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
2975 					dev_warn(p->dev, "DMA L2T, frame to fields src buffer too small (%llu %lu)\n",
2976 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
2977 					return -EINVAL;
2978 				}
2979 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2980 					dev_warn(p->dev, "DMA L2T, frame to fields buffer too small (%llu %lu)\n",
2981 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2982 					return -EINVAL;
2983 				}
2984 				if ((dst2_offset + (count * 4)) > radeon_bo_size(dst2_reloc->robj)) {
2985 					dev_warn(p->dev, "DMA L2T, frame to fields buffer too small (%llu %lu)\n",
2986 							dst2_offset + (count * 4), radeon_bo_size(dst2_reloc->robj));
2987 					return -EINVAL;
2988 				}
2989 				ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
2990 				ib[idx+2] += (u32)(dst2_reloc->gpu_offset >> 8);
2991 				ib[idx+8] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
2992 				ib[idx+9] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
2993 				p->idx += 10;
2994 				break;
2995 			/* Copy L2T/T2L, partial */
2996 			case 0x49:
2997 				/* L2T, T2L partial */
2998 				if (p->family < CHIP_CAYMAN) {
2999 					DRM_ERROR("L2T, T2L Partial is cayman only !\n");
3000 					return -EINVAL;
3001 				}
3002 				/* detile bit */
3003 				if (radeon_get_ib_value(p, idx + 2) & (1 << 31)) {
3004 					/* tiled src, linear dst */
3005 					ib[idx+1] += (u32)(src_reloc->gpu_offset >> 8);
3006 
3007 					ib[idx+7] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
3008 					ib[idx+8] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
3009 				} else {
3010 					/* linear src, tiled dst */
3011 					ib[idx+7] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
3012 					ib[idx+8] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
3013 
3014 					ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
3015 				}
3016 				p->idx += 12;
3017 				break;
3018 			/* Copy L2T broadcast */
3019 			case 0x4b:
3020 				/* L2T, broadcast */
3021 				if (radeon_get_ib_value(p, idx + 2) & (1 << 31)) {
3022 					DRM_ERROR("bad L2T, broadcast DMA_PACKET_COPY\n");
3023 					return -EINVAL;
3024 				}
3025 				r = r600_dma_cs_next_reloc(p, &dst2_reloc);
3026 				if (r) {
3027 					DRM_ERROR("bad L2T, broadcast DMA_PACKET_COPY\n");
3028 					return -EINVAL;
3029 				}
3030 				dst_offset = radeon_get_ib_value(p, idx+1);
3031 				dst_offset <<= 8;
3032 				dst2_offset = radeon_get_ib_value(p, idx+2);
3033 				dst2_offset <<= 8;
3034 				src_offset = radeon_get_ib_value(p, idx+8);
3035 				src_offset |= ((u64)(radeon_get_ib_value(p, idx+9) & 0xff)) << 32;
3036 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
3037 					dev_warn(p->dev, "DMA L2T, broadcast src buffer too small (%llu %lu)\n",
3038 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
3039 					return -EINVAL;
3040 				}
3041 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
3042 					dev_warn(p->dev, "DMA L2T, broadcast dst buffer too small (%llu %lu)\n",
3043 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
3044 					return -EINVAL;
3045 				}
3046 				if ((dst2_offset + (count * 4)) > radeon_bo_size(dst2_reloc->robj)) {
3047 					dev_warn(p->dev, "DMA L2T, broadcast dst2 buffer too small (%llu %lu)\n",
3048 							dst2_offset + (count * 4), radeon_bo_size(dst2_reloc->robj));
3049 					return -EINVAL;
3050 				}
3051 				ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
3052 				ib[idx+2] += (u32)(dst2_reloc->gpu_offset >> 8);
3053 				ib[idx+8] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
3054 				ib[idx+9] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
3055 				p->idx += 10;
3056 				break;
3057 			/* Copy L2T/T2L (tile units) */
3058 			case 0x4c:
3059 				/* L2T, T2L */
3060 				/* detile bit */
3061 				if (radeon_get_ib_value(p, idx + 2) & (1 << 31)) {
3062 					/* tiled src, linear dst */
3063 					src_offset = radeon_get_ib_value(p, idx+1);
3064 					src_offset <<= 8;
3065 					ib[idx+1] += (u32)(src_reloc->gpu_offset >> 8);
3066 
3067 					dst_offset = radeon_get_ib_value(p, idx+7);
3068 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+8) & 0xff)) << 32;
3069 					ib[idx+7] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
3070 					ib[idx+8] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
3071 				} else {
3072 					/* linear src, tiled dst */
3073 					src_offset = radeon_get_ib_value(p, idx+7);
3074 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+8) & 0xff)) << 32;
3075 					ib[idx+7] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
3076 					ib[idx+8] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
3077 
3078 					dst_offset = radeon_get_ib_value(p, idx+1);
3079 					dst_offset <<= 8;
3080 					ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
3081 				}
3082 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
3083 					dev_warn(p->dev, "DMA L2T, T2L src buffer too small (%llu %lu)\n",
3084 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
3085 					return -EINVAL;
3086 				}
3087 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
3088 					dev_warn(p->dev, "DMA L2T, T2L dst buffer too small (%llu %lu)\n",
3089 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
3090 					return -EINVAL;
3091 				}
3092 				p->idx += 9;
3093 				break;
3094 			/* Copy T2T, partial (tile units) */
3095 			case 0x4d:
3096 				/* T2T partial */
3097 				if (p->family < CHIP_CAYMAN) {
3098 					DRM_ERROR("L2T, T2L Partial is cayman only !\n");
3099 					return -EINVAL;
3100 				}
3101 				ib[idx+1] += (u32)(src_reloc->gpu_offset >> 8);
3102 				ib[idx+4] += (u32)(dst_reloc->gpu_offset >> 8);
3103 				p->idx += 13;
3104 				break;
3105 			/* Copy L2T broadcast (tile units) */
3106 			case 0x4f:
3107 				/* L2T, broadcast */
3108 				if (radeon_get_ib_value(p, idx + 2) & (1 << 31)) {
3109 					DRM_ERROR("bad L2T, broadcast DMA_PACKET_COPY\n");
3110 					return -EINVAL;
3111 				}
3112 				r = r600_dma_cs_next_reloc(p, &dst2_reloc);
3113 				if (r) {
3114 					DRM_ERROR("bad L2T, broadcast DMA_PACKET_COPY\n");
3115 					return -EINVAL;
3116 				}
3117 				dst_offset = radeon_get_ib_value(p, idx+1);
3118 				dst_offset <<= 8;
3119 				dst2_offset = radeon_get_ib_value(p, idx+2);
3120 				dst2_offset <<= 8;
3121 				src_offset = radeon_get_ib_value(p, idx+8);
3122 				src_offset |= ((u64)(radeon_get_ib_value(p, idx+9) & 0xff)) << 32;
3123 				if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
3124 					dev_warn(p->dev, "DMA L2T, broadcast src buffer too small (%llu %lu)\n",
3125 							src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
3126 					return -EINVAL;
3127 				}
3128 				if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
3129 					dev_warn(p->dev, "DMA L2T, broadcast dst buffer too small (%llu %lu)\n",
3130 							dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
3131 					return -EINVAL;
3132 				}
3133 				if ((dst2_offset + (count * 4)) > radeon_bo_size(dst2_reloc->robj)) {
3134 					dev_warn(p->dev, "DMA L2T, broadcast dst2 buffer too small (%llu %lu)\n",
3135 							dst2_offset + (count * 4), radeon_bo_size(dst2_reloc->robj));
3136 					return -EINVAL;
3137 				}
3138 				ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
3139 				ib[idx+2] += (u32)(dst2_reloc->gpu_offset >> 8);
3140 				ib[idx+8] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
3141 				ib[idx+9] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
3142 				p->idx += 10;
3143 				break;
3144 			default:
3145 				DRM_ERROR("bad DMA_PACKET_COPY [%6d] 0x%08x invalid sub cmd\n", idx, header);
3146 				return -EINVAL;
3147 			}
3148 			break;
3149 		case DMA_PACKET_CONSTANT_FILL:
3150 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
3151 			if (r) {
3152 				DRM_ERROR("bad DMA_PACKET_CONSTANT_FILL\n");
3153 				return -EINVAL;
3154 			}
3155 			dst_offset = radeon_get_ib_value(p, idx+1);
3156 			dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0x00ff0000)) << 16;
3157 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
3158 				dev_warn(p->dev, "DMA constant fill buffer too small (%llu %lu)\n",
3159 					 dst_offset, radeon_bo_size(dst_reloc->robj));
3160 				return -EINVAL;
3161 			}
3162 			ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
3163 			ib[idx+3] += (upper_32_bits(dst_reloc->gpu_offset) << 16) & 0x00ff0000;
3164 			p->idx += 4;
3165 			break;
3166 		case DMA_PACKET_NOP:
3167 			p->idx += 1;
3168 			break;
3169 		default:
3170 			DRM_ERROR("Unknown packet type %d at %d !\n", cmd, idx);
3171 			return -EINVAL;
3172 		}
3173 	} while (p->idx < p->chunk_ib->length_dw);
3174 #if 0
3175 	for (r = 0; r < p->ib->length_dw; r++) {
3176 		printk(KERN_INFO "%05d  0x%08X\n", r, p->ib.ptr[r]);
3177 		mdelay(1);
3178 	}
3179 #endif
3180 	return 0;
3181 }
3182 
3183 /* vm parser */
3184 static bool evergreen_vm_reg_valid(u32 reg)
3185 {
3186 	/* context regs are fine */
3187 	if (reg >= 0x28000)
3188 		return true;
3189 
3190 	/* check config regs */
3191 	switch (reg) {
3192 	case WAIT_UNTIL:
3193 	case GRBM_GFX_INDEX:
3194 	case CP_STRMOUT_CNTL:
3195 	case CP_COHER_CNTL:
3196 	case CP_COHER_SIZE:
3197 	case VGT_VTX_VECT_EJECT_REG:
3198 	case VGT_CACHE_INVALIDATION:
3199 	case VGT_GS_VERTEX_REUSE:
3200 	case VGT_PRIMITIVE_TYPE:
3201 	case VGT_INDEX_TYPE:
3202 	case VGT_NUM_INDICES:
3203 	case VGT_NUM_INSTANCES:
3204 	case VGT_COMPUTE_DIM_X:
3205 	case VGT_COMPUTE_DIM_Y:
3206 	case VGT_COMPUTE_DIM_Z:
3207 	case VGT_COMPUTE_START_X:
3208 	case VGT_COMPUTE_START_Y:
3209 	case VGT_COMPUTE_START_Z:
3210 	case VGT_COMPUTE_INDEX:
3211 	case VGT_COMPUTE_THREAD_GROUP_SIZE:
3212 	case VGT_HS_OFFCHIP_PARAM:
3213 	case PA_CL_ENHANCE:
3214 	case PA_SU_LINE_STIPPLE_VALUE:
3215 	case PA_SC_LINE_STIPPLE_STATE:
3216 	case PA_SC_ENHANCE:
3217 	case SQ_DYN_GPR_CNTL_PS_FLUSH_REQ:
3218 	case SQ_DYN_GPR_SIMD_LOCK_EN:
3219 	case SQ_CONFIG:
3220 	case SQ_GPR_RESOURCE_MGMT_1:
3221 	case SQ_GLOBAL_GPR_RESOURCE_MGMT_1:
3222 	case SQ_GLOBAL_GPR_RESOURCE_MGMT_2:
3223 	case SQ_CONST_MEM_BASE:
3224 	case SQ_STATIC_THREAD_MGMT_1:
3225 	case SQ_STATIC_THREAD_MGMT_2:
3226 	case SQ_STATIC_THREAD_MGMT_3:
3227 	case SPI_CONFIG_CNTL:
3228 	case SPI_CONFIG_CNTL_1:
3229 	case TA_CNTL_AUX:
3230 	case DB_DEBUG:
3231 	case DB_DEBUG2:
3232 	case DB_DEBUG3:
3233 	case DB_DEBUG4:
3234 	case DB_WATERMARKS:
3235 	case TD_PS_BORDER_COLOR_INDEX:
3236 	case TD_PS_BORDER_COLOR_RED:
3237 	case TD_PS_BORDER_COLOR_GREEN:
3238 	case TD_PS_BORDER_COLOR_BLUE:
3239 	case TD_PS_BORDER_COLOR_ALPHA:
3240 	case TD_VS_BORDER_COLOR_INDEX:
3241 	case TD_VS_BORDER_COLOR_RED:
3242 	case TD_VS_BORDER_COLOR_GREEN:
3243 	case TD_VS_BORDER_COLOR_BLUE:
3244 	case TD_VS_BORDER_COLOR_ALPHA:
3245 	case TD_GS_BORDER_COLOR_INDEX:
3246 	case TD_GS_BORDER_COLOR_RED:
3247 	case TD_GS_BORDER_COLOR_GREEN:
3248 	case TD_GS_BORDER_COLOR_BLUE:
3249 	case TD_GS_BORDER_COLOR_ALPHA:
3250 	case TD_HS_BORDER_COLOR_INDEX:
3251 	case TD_HS_BORDER_COLOR_RED:
3252 	case TD_HS_BORDER_COLOR_GREEN:
3253 	case TD_HS_BORDER_COLOR_BLUE:
3254 	case TD_HS_BORDER_COLOR_ALPHA:
3255 	case TD_LS_BORDER_COLOR_INDEX:
3256 	case TD_LS_BORDER_COLOR_RED:
3257 	case TD_LS_BORDER_COLOR_GREEN:
3258 	case TD_LS_BORDER_COLOR_BLUE:
3259 	case TD_LS_BORDER_COLOR_ALPHA:
3260 	case TD_CS_BORDER_COLOR_INDEX:
3261 	case TD_CS_BORDER_COLOR_RED:
3262 	case TD_CS_BORDER_COLOR_GREEN:
3263 	case TD_CS_BORDER_COLOR_BLUE:
3264 	case TD_CS_BORDER_COLOR_ALPHA:
3265 	case SQ_ESGS_RING_SIZE:
3266 	case SQ_GSVS_RING_SIZE:
3267 	case SQ_ESTMP_RING_SIZE:
3268 	case SQ_GSTMP_RING_SIZE:
3269 	case SQ_HSTMP_RING_SIZE:
3270 	case SQ_LSTMP_RING_SIZE:
3271 	case SQ_PSTMP_RING_SIZE:
3272 	case SQ_VSTMP_RING_SIZE:
3273 	case SQ_ESGS_RING_ITEMSIZE:
3274 	case SQ_ESTMP_RING_ITEMSIZE:
3275 	case SQ_GSTMP_RING_ITEMSIZE:
3276 	case SQ_GSVS_RING_ITEMSIZE:
3277 	case SQ_GS_VERT_ITEMSIZE:
3278 	case SQ_GS_VERT_ITEMSIZE_1:
3279 	case SQ_GS_VERT_ITEMSIZE_2:
3280 	case SQ_GS_VERT_ITEMSIZE_3:
3281 	case SQ_GSVS_RING_OFFSET_1:
3282 	case SQ_GSVS_RING_OFFSET_2:
3283 	case SQ_GSVS_RING_OFFSET_3:
3284 	case SQ_HSTMP_RING_ITEMSIZE:
3285 	case SQ_LSTMP_RING_ITEMSIZE:
3286 	case SQ_PSTMP_RING_ITEMSIZE:
3287 	case SQ_VSTMP_RING_ITEMSIZE:
3288 	case VGT_TF_RING_SIZE:
3289 	case SQ_ESGS_RING_BASE:
3290 	case SQ_GSVS_RING_BASE:
3291 	case SQ_ESTMP_RING_BASE:
3292 	case SQ_GSTMP_RING_BASE:
3293 	case SQ_HSTMP_RING_BASE:
3294 	case SQ_LSTMP_RING_BASE:
3295 	case SQ_PSTMP_RING_BASE:
3296 	case SQ_VSTMP_RING_BASE:
3297 	case CAYMAN_VGT_OFFCHIP_LDS_BASE:
3298 	case CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS:
3299 		return true;
3300 	default:
3301 		DRM_ERROR("Invalid register 0x%x in CS\n", reg);
3302 		return false;
3303 	}
3304 }
3305 
3306 static int evergreen_vm_packet3_check(struct radeon_device *rdev,
3307 				      u32 *ib, struct radeon_cs_packet *pkt)
3308 {
3309 	u32 idx = pkt->idx + 1;
3310 	u32 idx_value = ib[idx];
3311 	u32 start_reg, end_reg, reg, i;
3312 	u32 command, info;
3313 
3314 	switch (pkt->opcode) {
3315 	case PACKET3_NOP:
3316 		break;
3317 	case PACKET3_SET_BASE:
3318 		if (idx_value != 1) {
3319 			DRM_ERROR("bad SET_BASE");
3320 			return -EINVAL;
3321 		}
3322 		break;
3323 	case PACKET3_CLEAR_STATE:
3324 	case PACKET3_INDEX_BUFFER_SIZE:
3325 	case PACKET3_DISPATCH_DIRECT:
3326 	case PACKET3_DISPATCH_INDIRECT:
3327 	case PACKET3_MODE_CONTROL:
3328 	case PACKET3_SET_PREDICATION:
3329 	case PACKET3_COND_EXEC:
3330 	case PACKET3_PRED_EXEC:
3331 	case PACKET3_DRAW_INDIRECT:
3332 	case PACKET3_DRAW_INDEX_INDIRECT:
3333 	case PACKET3_INDEX_BASE:
3334 	case PACKET3_DRAW_INDEX_2:
3335 	case PACKET3_CONTEXT_CONTROL:
3336 	case PACKET3_DRAW_INDEX_OFFSET:
3337 	case PACKET3_INDEX_TYPE:
3338 	case PACKET3_DRAW_INDEX:
3339 	case PACKET3_DRAW_INDEX_AUTO:
3340 	case PACKET3_DRAW_INDEX_IMMD:
3341 	case PACKET3_NUM_INSTANCES:
3342 	case PACKET3_DRAW_INDEX_MULTI_AUTO:
3343 	case PACKET3_STRMOUT_BUFFER_UPDATE:
3344 	case PACKET3_DRAW_INDEX_OFFSET_2:
3345 	case PACKET3_DRAW_INDEX_MULTI_ELEMENT:
3346 	case PACKET3_MPEG_INDEX:
3347 	case PACKET3_WAIT_REG_MEM:
3348 	case PACKET3_MEM_WRITE:
3349 	case PACKET3_SURFACE_SYNC:
3350 	case PACKET3_EVENT_WRITE:
3351 	case PACKET3_EVENT_WRITE_EOP:
3352 	case PACKET3_EVENT_WRITE_EOS:
3353 	case PACKET3_SET_CONTEXT_REG:
3354 	case PACKET3_SET_BOOL_CONST:
3355 	case PACKET3_SET_LOOP_CONST:
3356 	case PACKET3_SET_RESOURCE:
3357 	case PACKET3_SET_SAMPLER:
3358 	case PACKET3_SET_CTL_CONST:
3359 	case PACKET3_SET_RESOURCE_OFFSET:
3360 	case PACKET3_SET_CONTEXT_REG_INDIRECT:
3361 	case PACKET3_SET_RESOURCE_INDIRECT:
3362 	case CAYMAN_PACKET3_DEALLOC_STATE:
3363 		break;
3364 	case PACKET3_COND_WRITE:
3365 		if (idx_value & 0x100) {
3366 			reg = ib[idx + 5] * 4;
3367 			if (!evergreen_vm_reg_valid(reg))
3368 				return -EINVAL;
3369 		}
3370 		break;
3371 	case PACKET3_COPY_DW:
3372 		if (idx_value & 0x2) {
3373 			reg = ib[idx + 3] * 4;
3374 			if (!evergreen_vm_reg_valid(reg))
3375 				return -EINVAL;
3376 		}
3377 		break;
3378 	case PACKET3_SET_CONFIG_REG:
3379 		start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_START;
3380 		end_reg = 4 * pkt->count + start_reg - 4;
3381 		if ((start_reg < PACKET3_SET_CONFIG_REG_START) ||
3382 		    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
3383 		    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
3384 			DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
3385 			return -EINVAL;
3386 		}
3387 		for (i = 0; i < pkt->count; i++) {
3388 			reg = start_reg + (4 * i);
3389 			if (!evergreen_vm_reg_valid(reg))
3390 				return -EINVAL;
3391 		}
3392 		break;
3393 	case PACKET3_CP_DMA:
3394 		command = ib[idx + 4];
3395 		info = ib[idx + 1];
3396 		if ((((info & 0x60000000) >> 29) != 0) || /* src = GDS or DATA */
3397 		    (((info & 0x00300000) >> 20) != 0) || /* dst = GDS */
3398 		    ((((info & 0x00300000) >> 20) == 0) &&
3399 		     (command & PACKET3_CP_DMA_CMD_DAS)) || /* dst = register */
3400 		    ((((info & 0x60000000) >> 29) == 0) &&
3401 		     (command & PACKET3_CP_DMA_CMD_SAS))) { /* src = register */
3402 			/* non mem to mem copies requires dw aligned count */
3403 			if ((command & 0x1fffff) % 4) {
3404 				DRM_ERROR("CP DMA command requires dw count alignment\n");
3405 				return -EINVAL;
3406 			}
3407 		}
3408 		if (command & PACKET3_CP_DMA_CMD_SAS) {
3409 			/* src address space is register */
3410 			if (((info & 0x60000000) >> 29) == 0) {
3411 				start_reg = idx_value << 2;
3412 				if (command & PACKET3_CP_DMA_CMD_SAIC) {
3413 					reg = start_reg;
3414 					if (!evergreen_vm_reg_valid(reg)) {
3415 						DRM_ERROR("CP DMA Bad SRC register\n");
3416 						return -EINVAL;
3417 					}
3418 				} else {
3419 					for (i = 0; i < (command & 0x1fffff); i++) {
3420 						reg = start_reg + (4 * i);
3421 						if (!evergreen_vm_reg_valid(reg)) {
3422 							DRM_ERROR("CP DMA Bad SRC register\n");
3423 							return -EINVAL;
3424 						}
3425 					}
3426 				}
3427 			}
3428 		}
3429 		if (command & PACKET3_CP_DMA_CMD_DAS) {
3430 			/* dst address space is register */
3431 			if (((info & 0x00300000) >> 20) == 0) {
3432 				start_reg = ib[idx + 2];
3433 				if (command & PACKET3_CP_DMA_CMD_DAIC) {
3434 					reg = start_reg;
3435 					if (!evergreen_vm_reg_valid(reg)) {
3436 						DRM_ERROR("CP DMA Bad DST register\n");
3437 						return -EINVAL;
3438 					}
3439 				} else {
3440 					for (i = 0; i < (command & 0x1fffff); i++) {
3441 						reg = start_reg + (4 * i);
3442 						if (!evergreen_vm_reg_valid(reg)) {
3443 							DRM_ERROR("CP DMA Bad DST register\n");
3444 							return -EINVAL;
3445 						}
3446 					}
3447 				}
3448 			}
3449 		}
3450 		break;
3451 	default:
3452 		return -EINVAL;
3453 	}
3454 	return 0;
3455 }
3456 
3457 int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
3458 {
3459 	int ret = 0;
3460 	u32 idx = 0;
3461 	struct radeon_cs_packet pkt;
3462 
3463 	do {
3464 		pkt.idx = idx;
3465 		pkt.type = RADEON_CP_PACKET_GET_TYPE(ib->ptr[idx]);
3466 		pkt.count = RADEON_CP_PACKET_GET_COUNT(ib->ptr[idx]);
3467 		pkt.one_reg_wr = 0;
3468 		switch (pkt.type) {
3469 		case RADEON_PACKET_TYPE0:
3470 			dev_err(rdev->dev, "Packet0 not allowed!\n");
3471 			ret = -EINVAL;
3472 			break;
3473 		case RADEON_PACKET_TYPE2:
3474 			idx += 1;
3475 			break;
3476 		case RADEON_PACKET_TYPE3:
3477 			pkt.opcode = RADEON_CP_PACKET3_GET_OPCODE(ib->ptr[idx]);
3478 			ret = evergreen_vm_packet3_check(rdev, ib->ptr, &pkt);
3479 			idx += pkt.count + 2;
3480 			break;
3481 		default:
3482 			dev_err(rdev->dev, "Unknown packet type %d !\n", pkt.type);
3483 			ret = -EINVAL;
3484 			break;
3485 		}
3486 		if (ret)
3487 			break;
3488 	} while (idx < ib->length_dw);
3489 
3490 	return ret;
3491 }
3492 
3493 /**
3494  * evergreen_dma_ib_parse() - parse the DMA IB for VM
3495  * @rdev: radeon_device pointer
3496  * @ib:	radeon_ib pointer
3497  *
3498  * Parses the DMA IB from the VM CS ioctl
3499  * checks for errors. (Cayman-SI)
3500  * Returns 0 for success and an error on failure.
3501  **/
3502 int evergreen_dma_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
3503 {
3504 	u32 idx = 0;
3505 	u32 header, cmd, count, sub_cmd;
3506 
3507 	do {
3508 		header = ib->ptr[idx];
3509 		cmd = GET_DMA_CMD(header);
3510 		count = GET_DMA_COUNT(header);
3511 		sub_cmd = GET_DMA_SUB_CMD(header);
3512 
3513 		switch (cmd) {
3514 		case DMA_PACKET_WRITE:
3515 			switch (sub_cmd) {
3516 			/* tiled */
3517 			case 8:
3518 				idx += count + 7;
3519 				break;
3520 			/* linear */
3521 			case 0:
3522 				idx += count + 3;
3523 				break;
3524 			default:
3525 				DRM_ERROR("bad DMA_PACKET_WRITE [%6d] 0x%08x sub cmd is not 0 or 8\n", idx, ib->ptr[idx]);
3526 				return -EINVAL;
3527 			}
3528 			break;
3529 		case DMA_PACKET_COPY:
3530 			switch (sub_cmd) {
3531 			/* Copy L2L, DW aligned */
3532 			case 0x00:
3533 				idx += 5;
3534 				break;
3535 			/* Copy L2T/T2L */
3536 			case 0x08:
3537 				idx += 9;
3538 				break;
3539 			/* Copy L2L, byte aligned */
3540 			case 0x40:
3541 				idx += 5;
3542 				break;
3543 			/* Copy L2L, partial */
3544 			case 0x41:
3545 				idx += 9;
3546 				break;
3547 			/* Copy L2L, DW aligned, broadcast */
3548 			case 0x44:
3549 				idx += 7;
3550 				break;
3551 			/* Copy L2T Frame to Field */
3552 			case 0x48:
3553 				idx += 10;
3554 				break;
3555 			/* Copy L2T/T2L, partial */
3556 			case 0x49:
3557 				idx += 12;
3558 				break;
3559 			/* Copy L2T broadcast */
3560 			case 0x4b:
3561 				idx += 10;
3562 				break;
3563 			/* Copy L2T/T2L (tile units) */
3564 			case 0x4c:
3565 				idx += 9;
3566 				break;
3567 			/* Copy T2T, partial (tile units) */
3568 			case 0x4d:
3569 				idx += 13;
3570 				break;
3571 			/* Copy L2T broadcast (tile units) */
3572 			case 0x4f:
3573 				idx += 10;
3574 				break;
3575 			default:
3576 				DRM_ERROR("bad DMA_PACKET_COPY [%6d] 0x%08x invalid sub cmd\n", idx, ib->ptr[idx]);
3577 				return -EINVAL;
3578 			}
3579 			break;
3580 		case DMA_PACKET_CONSTANT_FILL:
3581 			idx += 4;
3582 			break;
3583 		case DMA_PACKET_NOP:
3584 			idx += 1;
3585 			break;
3586 		default:
3587 			DRM_ERROR("Unknown packet type %d at %d !\n", cmd, idx);
3588 			return -EINVAL;
3589 		}
3590 	} while (idx < ib->length_dw);
3591 
3592 	return 0;
3593 }
3594