xref: /dragonfly/sys/dev/drm/radeon/r600_cs.c (revision d4ef6694)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Jerome Glisse.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  *          Jerome Glisse
27  *
28  * $FreeBSD: head/sys/dev/drm2/radeon/r600_cs.c 254885 2013-08-25 19:37:15Z dumbbell $
29  */
30 
31 #include <drm/drmP.h>
32 #include "radeon.h"
33 #include "radeon_asic.h"
34 #include "r600d.h"
35 #include "r600_reg_safe.h"
36 #include "r600_cp.h"
37 #include "r600_cs.h"
38 
39 static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p,
40 					struct radeon_cs_reloc **cs_reloc);
41 static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p,
42 					struct radeon_cs_reloc **cs_reloc);
43 typedef int (*next_reloc_t)(struct radeon_cs_parser*, struct radeon_cs_reloc**);
44 static next_reloc_t r600_cs_packet_next_reloc = &r600_cs_packet_next_reloc_mm;
45 
46 
47 struct r600_cs_track {
48 	/* configuration we miror so that we use same code btw kms/ums */
49 	u32			group_size;
50 	u32			nbanks;
51 	u32			npipes;
52 	/* value we track */
53 	u32			sq_config;
54 	u32			log_nsamples;
55 	u32			nsamples;
56 	u32			cb_color_base_last[8];
57 	struct radeon_bo	*cb_color_bo[8];
58 	u64			cb_color_bo_mc[8];
59 	u64			cb_color_bo_offset[8];
60 	struct radeon_bo	*cb_color_frag_bo[8];
61 	u64			cb_color_frag_offset[8];
62 	struct radeon_bo	*cb_color_tile_bo[8];
63 	u64			cb_color_tile_offset[8];
64 	u32			cb_color_mask[8];
65 	u32			cb_color_info[8];
66 	u32			cb_color_view[8];
67 	u32			cb_color_size_idx[8]; /* unused */
68 	u32			cb_target_mask;
69 	u32			cb_shader_mask;  /* unused */
70 	bool			is_resolve;
71 	u32			cb_color_size[8];
72 	u32			vgt_strmout_en;
73 	u32			vgt_strmout_buffer_en;
74 	struct radeon_bo	*vgt_strmout_bo[4];
75 	u64			vgt_strmout_bo_mc[4]; /* unused */
76 	u32			vgt_strmout_bo_offset[4];
77 	u32			vgt_strmout_size[4];
78 	u32			db_depth_control;
79 	u32			db_depth_info;
80 	u32			db_depth_size_idx;
81 	u32			db_depth_view;
82 	u32			db_depth_size;
83 	u32			db_offset;
84 	struct radeon_bo	*db_bo;
85 	u64			db_bo_mc;
86 	bool			sx_misc_kill_all_prims;
87 	bool			cb_dirty;
88 	bool			db_dirty;
89 	bool			streamout_dirty;
90 	struct radeon_bo	*htile_bo;
91 	u64			htile_offset;
92 	u32			htile_surface;
93 };
94 
95 #define FMT_8_BIT(fmt, vc)   [fmt] = { 1, 1, 1, vc, CHIP_R600 }
96 #define FMT_16_BIT(fmt, vc)  [fmt] = { 1, 1, 2, vc, CHIP_R600 }
97 #define FMT_24_BIT(fmt)      [fmt] = { 1, 1, 4,  0, CHIP_R600 }
98 #define FMT_32_BIT(fmt, vc)  [fmt] = { 1, 1, 4, vc, CHIP_R600 }
99 #define FMT_48_BIT(fmt)      [fmt] = { 1, 1, 8,  0, CHIP_R600 }
100 #define FMT_64_BIT(fmt, vc)  [fmt] = { 1, 1, 8, vc, CHIP_R600 }
101 #define FMT_96_BIT(fmt)      [fmt] = { 1, 1, 12, 0, CHIP_R600 }
102 #define FMT_128_BIT(fmt, vc) [fmt] = { 1, 1, 16,vc, CHIP_R600 }
103 
104 struct gpu_formats {
105 	unsigned blockwidth;
106 	unsigned blockheight;
107 	unsigned blocksize;
108 	unsigned valid_color;
109 	enum radeon_family min_family;
110 };
111 
112 static const struct gpu_formats color_formats_table[] = {
113 	/* 8 bit */
114 	FMT_8_BIT(V_038004_COLOR_8, 1),
115 	FMT_8_BIT(V_038004_COLOR_4_4, 1),
116 	FMT_8_BIT(V_038004_COLOR_3_3_2, 1),
117 	FMT_8_BIT(V_038004_FMT_1, 0),
118 
119 	/* 16-bit */
120 	FMT_16_BIT(V_038004_COLOR_16, 1),
121 	FMT_16_BIT(V_038004_COLOR_16_FLOAT, 1),
122 	FMT_16_BIT(V_038004_COLOR_8_8, 1),
123 	FMT_16_BIT(V_038004_COLOR_5_6_5, 1),
124 	FMT_16_BIT(V_038004_COLOR_6_5_5, 1),
125 	FMT_16_BIT(V_038004_COLOR_1_5_5_5, 1),
126 	FMT_16_BIT(V_038004_COLOR_4_4_4_4, 1),
127 	FMT_16_BIT(V_038004_COLOR_5_5_5_1, 1),
128 
129 	/* 24-bit */
130 	FMT_24_BIT(V_038004_FMT_8_8_8),
131 
132 	/* 32-bit */
133 	FMT_32_BIT(V_038004_COLOR_32, 1),
134 	FMT_32_BIT(V_038004_COLOR_32_FLOAT, 1),
135 	FMT_32_BIT(V_038004_COLOR_16_16, 1),
136 	FMT_32_BIT(V_038004_COLOR_16_16_FLOAT, 1),
137 	FMT_32_BIT(V_038004_COLOR_8_24, 1),
138 	FMT_32_BIT(V_038004_COLOR_8_24_FLOAT, 1),
139 	FMT_32_BIT(V_038004_COLOR_24_8, 1),
140 	FMT_32_BIT(V_038004_COLOR_24_8_FLOAT, 1),
141 	FMT_32_BIT(V_038004_COLOR_10_11_11, 1),
142 	FMT_32_BIT(V_038004_COLOR_10_11_11_FLOAT, 1),
143 	FMT_32_BIT(V_038004_COLOR_11_11_10, 1),
144 	FMT_32_BIT(V_038004_COLOR_11_11_10_FLOAT, 1),
145 	FMT_32_BIT(V_038004_COLOR_2_10_10_10, 1),
146 	FMT_32_BIT(V_038004_COLOR_8_8_8_8, 1),
147 	FMT_32_BIT(V_038004_COLOR_10_10_10_2, 1),
148 	FMT_32_BIT(V_038004_FMT_5_9_9_9_SHAREDEXP, 0),
149 	FMT_32_BIT(V_038004_FMT_32_AS_8, 0),
150 	FMT_32_BIT(V_038004_FMT_32_AS_8_8, 0),
151 
152 	/* 48-bit */
153 	FMT_48_BIT(V_038004_FMT_16_16_16),
154 	FMT_48_BIT(V_038004_FMT_16_16_16_FLOAT),
155 
156 	/* 64-bit */
157 	FMT_64_BIT(V_038004_COLOR_X24_8_32_FLOAT, 1),
158 	FMT_64_BIT(V_038004_COLOR_32_32, 1),
159 	FMT_64_BIT(V_038004_COLOR_32_32_FLOAT, 1),
160 	FMT_64_BIT(V_038004_COLOR_16_16_16_16, 1),
161 	FMT_64_BIT(V_038004_COLOR_16_16_16_16_FLOAT, 1),
162 
163 	FMT_96_BIT(V_038004_FMT_32_32_32),
164 	FMT_96_BIT(V_038004_FMT_32_32_32_FLOAT),
165 
166 	/* 128-bit */
167 	FMT_128_BIT(V_038004_COLOR_32_32_32_32, 1),
168 	FMT_128_BIT(V_038004_COLOR_32_32_32_32_FLOAT, 1),
169 
170 	[V_038004_FMT_GB_GR] = { 2, 1, 4, 0 },
171 	[V_038004_FMT_BG_RG] = { 2, 1, 4, 0 },
172 
173 	/* block compressed formats */
174 	[V_038004_FMT_BC1] = { 4, 4, 8, 0 },
175 	[V_038004_FMT_BC2] = { 4, 4, 16, 0 },
176 	[V_038004_FMT_BC3] = { 4, 4, 16, 0 },
177 	[V_038004_FMT_BC4] = { 4, 4, 8, 0 },
178 	[V_038004_FMT_BC5] = { 4, 4, 16, 0},
179 	[V_038004_FMT_BC6] = { 4, 4, 16, 0, CHIP_CEDAR}, /* Evergreen-only */
180 	[V_038004_FMT_BC7] = { 4, 4, 16, 0, CHIP_CEDAR}, /* Evergreen-only */
181 
182 	/* The other Evergreen formats */
183 	[V_038004_FMT_32_AS_32_32_32_32] = { 1, 1, 4, 0, CHIP_CEDAR},
184 };
185 
186 bool r600_fmt_is_valid_color(u32 format)
187 {
188 	if (format >= DRM_ARRAY_SIZE(color_formats_table))
189 		return false;
190 
191 	if (color_formats_table[format].valid_color)
192 		return true;
193 
194 	return false;
195 }
196 
197 bool r600_fmt_is_valid_texture(u32 format, enum radeon_family family)
198 {
199 	if (format >= DRM_ARRAY_SIZE(color_formats_table))
200 		return false;
201 
202 	if (family < color_formats_table[format].min_family)
203 		return false;
204 
205 	if (color_formats_table[format].blockwidth > 0)
206 		return true;
207 
208 	return false;
209 }
210 
211 int r600_fmt_get_blocksize(u32 format)
212 {
213 	if (format >= DRM_ARRAY_SIZE(color_formats_table))
214 		return 0;
215 
216 	return color_formats_table[format].blocksize;
217 }
218 
219 int r600_fmt_get_nblocksx(u32 format, u32 w)
220 {
221 	unsigned bw;
222 
223 	if (format >= DRM_ARRAY_SIZE(color_formats_table))
224 		return 0;
225 
226 	bw = color_formats_table[format].blockwidth;
227 	if (bw == 0)
228 		return 0;
229 
230 	return (w + bw - 1) / bw;
231 }
232 
233 int r600_fmt_get_nblocksy(u32 format, u32 h)
234 {
235 	unsigned bh;
236 
237 	if (format >= DRM_ARRAY_SIZE(color_formats_table))
238 		return 0;
239 
240 	bh = color_formats_table[format].blockheight;
241 	if (bh == 0)
242 		return 0;
243 
244 	return (h + bh - 1) / bh;
245 }
246 
247 struct array_mode_checker {
248 	int array_mode;
249 	u32 group_size;
250 	u32 nbanks;
251 	u32 npipes;
252 	u32 nsamples;
253 	u32 blocksize;
254 };
255 
256 /* returns alignment in pixels for pitch/height/depth and bytes for base */
257 static int r600_get_array_mode_alignment(struct array_mode_checker *values,
258 						u32 *pitch_align,
259 						u32 *height_align,
260 						u32 *depth_align,
261 						u64 *base_align)
262 {
263 	u32 tile_width = 8;
264 	u32 tile_height = 8;
265 	u32 macro_tile_width = values->nbanks;
266 	u32 macro_tile_height = values->npipes;
267 	u32 tile_bytes = tile_width * tile_height * values->blocksize * values->nsamples;
268 	u32 macro_tile_bytes = macro_tile_width * macro_tile_height * tile_bytes;
269 
270 	switch (values->array_mode) {
271 	case ARRAY_LINEAR_GENERAL:
272 		/* technically tile_width/_height for pitch/height */
273 		*pitch_align = 1; /* tile_width */
274 		*height_align = 1; /* tile_height */
275 		*depth_align = 1;
276 		*base_align = 1;
277 		break;
278 	case ARRAY_LINEAR_ALIGNED:
279 		*pitch_align = max((u32)64, (u32)(values->group_size / values->blocksize));
280 		*height_align = 1;
281 		*depth_align = 1;
282 		*base_align = values->group_size;
283 		break;
284 	case ARRAY_1D_TILED_THIN1:
285 		*pitch_align = max((u32)tile_width,
286 				   (u32)(values->group_size /
287 					 (tile_height * values->blocksize * values->nsamples)));
288 		*height_align = tile_height;
289 		*depth_align = 1;
290 		*base_align = values->group_size;
291 		break;
292 	case ARRAY_2D_TILED_THIN1:
293 		*pitch_align = max((u32)macro_tile_width * tile_width,
294 				(u32)((values->group_size * values->nbanks) /
295 				(values->blocksize * values->nsamples * tile_width)));
296 		*height_align = macro_tile_height * tile_height;
297 		*depth_align = 1;
298 		*base_align = max(macro_tile_bytes,
299 				  (*pitch_align) * values->blocksize * (*height_align) * values->nsamples);
300 		break;
301 	default:
302 		return -EINVAL;
303 	}
304 
305 	return 0;
306 }
307 
308 static void r600_cs_track_init(struct r600_cs_track *track)
309 {
310 	int i;
311 
312 	/* assume DX9 mode */
313 	track->sq_config = DX9_CONSTS;
314 	for (i = 0; i < 8; i++) {
315 		track->cb_color_base_last[i] = 0;
316 		track->cb_color_size[i] = 0;
317 		track->cb_color_size_idx[i] = 0;
318 		track->cb_color_info[i] = 0;
319 		track->cb_color_view[i] = 0xFFFFFFFF;
320 		track->cb_color_bo[i] = NULL;
321 		track->cb_color_bo_offset[i] = 0xFFFFFFFF;
322 		track->cb_color_bo_mc[i] = 0xFFFFFFFF;
323 		track->cb_color_frag_bo[i] = NULL;
324 		track->cb_color_frag_offset[i] = 0xFFFFFFFF;
325 		track->cb_color_tile_bo[i] = NULL;
326 		track->cb_color_tile_offset[i] = 0xFFFFFFFF;
327 		track->cb_color_mask[i] = 0xFFFFFFFF;
328 	}
329 	track->is_resolve = false;
330 	track->nsamples = 16;
331 	track->log_nsamples = 4;
332 	track->cb_target_mask = 0xFFFFFFFF;
333 	track->cb_shader_mask = 0xFFFFFFFF;
334 	track->cb_dirty = true;
335 	track->db_bo = NULL;
336 	track->db_bo_mc = 0xFFFFFFFF;
337 	/* assume the biggest format and that htile is enabled */
338 	track->db_depth_info = 7 | (1 << 25);
339 	track->db_depth_view = 0xFFFFC000;
340 	track->db_depth_size = 0xFFFFFFFF;
341 	track->db_depth_size_idx = 0;
342 	track->db_depth_control = 0xFFFFFFFF;
343 	track->db_dirty = true;
344 	track->htile_bo = NULL;
345 	track->htile_offset = 0xFFFFFFFF;
346 	track->htile_surface = 0;
347 
348 	for (i = 0; i < 4; i++) {
349 		track->vgt_strmout_size[i] = 0;
350 		track->vgt_strmout_bo[i] = NULL;
351 		track->vgt_strmout_bo_offset[i] = 0xFFFFFFFF;
352 		track->vgt_strmout_bo_mc[i] = 0xFFFFFFFF;
353 	}
354 	track->streamout_dirty = true;
355 	track->sx_misc_kill_all_prims = false;
356 }
357 
358 static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
359 {
360 	struct r600_cs_track *track = p->track;
361 	u32 slice_tile_max, size, tmp;
362 	u32 height, height_align, pitch, pitch_align, depth_align;
363 	u64 base_offset, base_align;
364 	struct array_mode_checker array_check;
365 	volatile u32 *ib = p->ib.ptr;
366 	unsigned array_mode;
367 	u32 format;
368 	/* When resolve is used, the second colorbuffer has always 1 sample. */
369 	unsigned nsamples = track->is_resolve && i == 1 ? 1 : track->nsamples;
370 
371 	size = radeon_bo_size(track->cb_color_bo[i]) - track->cb_color_bo_offset[i];
372 	format = G_0280A0_FORMAT(track->cb_color_info[i]);
373 	if (!r600_fmt_is_valid_color(format)) {
374 		dev_warn(p->dev, "%s:%d cb invalid format %d for %d (0x%08X)\n",
375 			 __func__, __LINE__, format,
376 			i, track->cb_color_info[i]);
377 		return -EINVAL;
378 	}
379 	/* pitch in pixels */
380 	pitch = (G_028060_PITCH_TILE_MAX(track->cb_color_size[i]) + 1) * 8;
381 	slice_tile_max = G_028060_SLICE_TILE_MAX(track->cb_color_size[i]) + 1;
382 	slice_tile_max *= 64;
383 	height = slice_tile_max / pitch;
384 	if (height > 8192)
385 		height = 8192;
386 	array_mode = G_0280A0_ARRAY_MODE(track->cb_color_info[i]);
387 
388 	base_offset = track->cb_color_bo_mc[i] + track->cb_color_bo_offset[i];
389 	array_check.array_mode = array_mode;
390 	array_check.group_size = track->group_size;
391 	array_check.nbanks = track->nbanks;
392 	array_check.npipes = track->npipes;
393 	array_check.nsamples = nsamples;
394 	array_check.blocksize = r600_fmt_get_blocksize(format);
395 	if (r600_get_array_mode_alignment(&array_check,
396 					  &pitch_align, &height_align, &depth_align, &base_align)) {
397 		dev_warn(p->dev, "%s invalid tiling %d for %d (0x%08X)\n", __func__,
398 			 G_0280A0_ARRAY_MODE(track->cb_color_info[i]), i,
399 			 track->cb_color_info[i]);
400 		return -EINVAL;
401 	}
402 	switch (array_mode) {
403 	case V_0280A0_ARRAY_LINEAR_GENERAL:
404 		break;
405 	case V_0280A0_ARRAY_LINEAR_ALIGNED:
406 		break;
407 	case V_0280A0_ARRAY_1D_TILED_THIN1:
408 		/* avoid breaking userspace */
409 		if (height > 7)
410 			height &= ~0x7;
411 		break;
412 	case V_0280A0_ARRAY_2D_TILED_THIN1:
413 		break;
414 	default:
415 		dev_warn(p->dev, "%s invalid tiling %d for %d (0x%08X)\n", __func__,
416 			G_0280A0_ARRAY_MODE(track->cb_color_info[i]), i,
417 			track->cb_color_info[i]);
418 		return -EINVAL;
419 	}
420 
421 	if (!IS_ALIGNED(pitch, pitch_align)) {
422 		dev_warn(p->dev, "%s:%d cb pitch (%d, 0x%x, %d) invalid\n",
423 			 __func__, __LINE__, pitch, pitch_align, array_mode);
424 		return -EINVAL;
425 	}
426 	if (!IS_ALIGNED(height, height_align)) {
427 		dev_warn(p->dev, "%s:%d cb height (%d, 0x%x, %d) invalid\n",
428 			 __func__, __LINE__, height, height_align, array_mode);
429 		return -EINVAL;
430 	}
431 	if (!IS_ALIGNED(base_offset, base_align)) {
432 		dev_warn(p->dev, "%s offset[%d] 0x%jx 0x%jx, %d not aligned\n", __func__, i,
433 			 (uintmax_t)base_offset, (uintmax_t)base_align, array_mode);
434 		return -EINVAL;
435 	}
436 
437 	/* check offset */
438 	tmp = r600_fmt_get_nblocksy(format, height) * r600_fmt_get_nblocksx(format, pitch) *
439 	      r600_fmt_get_blocksize(format) * nsamples;
440 	switch (array_mode) {
441 	default:
442 	case V_0280A0_ARRAY_LINEAR_GENERAL:
443 	case V_0280A0_ARRAY_LINEAR_ALIGNED:
444 		tmp += track->cb_color_view[i] & 0xFF;
445 		break;
446 	case V_0280A0_ARRAY_1D_TILED_THIN1:
447 	case V_0280A0_ARRAY_2D_TILED_THIN1:
448 		tmp += G_028080_SLICE_MAX(track->cb_color_view[i]) * tmp;
449 		break;
450 	}
451 	if ((tmp + track->cb_color_bo_offset[i]) > radeon_bo_size(track->cb_color_bo[i])) {
452 		if (array_mode == V_0280A0_ARRAY_LINEAR_GENERAL) {
453 			/* the initial DDX does bad things with the CB size occasionally */
454 			/* it rounds up height too far for slice tile max but the BO is smaller */
455 			/* r600c,g also seem to flush at bad times in some apps resulting in
456 			 * bogus values here. So for linear just allow anything to avoid breaking
457 			 * broken userspace.
458 			 */
459 		} else {
460 			dev_warn(p->dev, "%s offset[%d] %d %ju %d %lu too big (%d %d) (%d %d %d)\n",
461 				 __func__, i, array_mode,
462 				 (uintmax_t)track->cb_color_bo_offset[i], tmp,
463 				 radeon_bo_size(track->cb_color_bo[i]),
464 				 pitch, height, r600_fmt_get_nblocksx(format, pitch),
465 				 r600_fmt_get_nblocksy(format, height),
466 				 r600_fmt_get_blocksize(format));
467 			return -EINVAL;
468 		}
469 	}
470 	/* limit max tile */
471 	tmp = (height * pitch) >> 6;
472 	if (tmp < slice_tile_max)
473 		slice_tile_max = tmp;
474 	tmp = S_028060_PITCH_TILE_MAX((pitch / 8) - 1) |
475 		S_028060_SLICE_TILE_MAX(slice_tile_max - 1);
476 	ib[track->cb_color_size_idx[i]] = tmp;
477 
478 	/* FMASK/CMASK */
479 	switch (G_0280A0_TILE_MODE(track->cb_color_info[i])) {
480 	case V_0280A0_TILE_DISABLE:
481 		break;
482 	case V_0280A0_FRAG_ENABLE:
483 		if (track->nsamples > 1) {
484 			uint32_t tile_max = G_028100_FMASK_TILE_MAX(track->cb_color_mask[i]);
485 			/* the tile size is 8x8, but the size is in units of bits.
486 			 * for bytes, do just * 8. */
487 			uint32_t bytes = track->nsamples * track->log_nsamples * 8 * (tile_max + 1);
488 
489 			if (bytes + track->cb_color_frag_offset[i] >
490 			    radeon_bo_size(track->cb_color_frag_bo[i])) {
491 				dev_warn(p->dev, "%s FMASK_TILE_MAX too large "
492 					 "(tile_max=%u, bytes=%u, offset=%ju, bo_size=%lu)\n",
493 					 __func__, tile_max, bytes,
494 					 (uintmax_t)track->cb_color_frag_offset[i],
495 					 radeon_bo_size(track->cb_color_frag_bo[i]));
496 				return -EINVAL;
497 			}
498 		}
499 		/* fall through */
500 	case V_0280A0_CLEAR_ENABLE:
501 	{
502 		uint32_t block_max = G_028100_CMASK_BLOCK_MAX(track->cb_color_mask[i]);
503 		/* One block = 128x128 pixels, one 8x8 tile has 4 bits..
504 		 * (128*128) / (8*8) / 2 = 128 bytes per block. */
505 		uint32_t bytes = (block_max + 1) * 128;
506 
507 		if (bytes + track->cb_color_tile_offset[i] >
508 		    radeon_bo_size(track->cb_color_tile_bo[i])) {
509 			dev_warn(p->dev, "%s CMASK_BLOCK_MAX too large "
510 				 "(block_max=%u, bytes=%u, offset=%ju, bo_size=%lu)\n",
511 				 __func__, block_max, bytes,
512 				 (uintmax_t)track->cb_color_tile_offset[i],
513 				 radeon_bo_size(track->cb_color_tile_bo[i]));
514 			return -EINVAL;
515 		}
516 		break;
517 	}
518 	default:
519 		dev_warn(p->dev, "%s invalid tile mode\n", __func__);
520 		return -EINVAL;
521 	}
522 	return 0;
523 }
524 
525 static int r600_cs_track_validate_db(struct radeon_cs_parser *p)
526 {
527 	struct r600_cs_track *track = p->track;
528 	u32 nviews, bpe, ntiles, size, slice_tile_max, tmp;
529 	u32 height_align, pitch_align, depth_align;
530 	u32 pitch = 8192;
531 	u32 height = 8192;
532 	u64 base_offset, base_align;
533 	struct array_mode_checker array_check;
534 	int array_mode;
535 	volatile u32 *ib = p->ib.ptr;
536 
537 
538 	if (track->db_bo == NULL) {
539 		dev_warn(p->dev, "z/stencil with no depth buffer\n");
540 		return -EINVAL;
541 	}
542 	switch (G_028010_FORMAT(track->db_depth_info)) {
543 	case V_028010_DEPTH_16:
544 		bpe = 2;
545 		break;
546 	case V_028010_DEPTH_X8_24:
547 	case V_028010_DEPTH_8_24:
548 	case V_028010_DEPTH_X8_24_FLOAT:
549 	case V_028010_DEPTH_8_24_FLOAT:
550 	case V_028010_DEPTH_32_FLOAT:
551 		bpe = 4;
552 		break;
553 	case V_028010_DEPTH_X24_8_32_FLOAT:
554 		bpe = 8;
555 		break;
556 	default:
557 		dev_warn(p->dev, "z/stencil with invalid format %d\n", G_028010_FORMAT(track->db_depth_info));
558 		return -EINVAL;
559 	}
560 	if ((track->db_depth_size & 0xFFFFFC00) == 0xFFFFFC00) {
561 		if (!track->db_depth_size_idx) {
562 			dev_warn(p->dev, "z/stencil buffer size not set\n");
563 			return -EINVAL;
564 		}
565 		tmp = radeon_bo_size(track->db_bo) - track->db_offset;
566 		tmp = (tmp / bpe) >> 6;
567 		if (!tmp) {
568 			dev_warn(p->dev, "z/stencil buffer too small (0x%08X %d %d %ld)\n",
569 					track->db_depth_size, bpe, track->db_offset,
570 					radeon_bo_size(track->db_bo));
571 			return -EINVAL;
572 		}
573 		ib[track->db_depth_size_idx] = S_028000_SLICE_TILE_MAX(tmp - 1) | (track->db_depth_size & 0x3FF);
574 	} else {
575 		size = radeon_bo_size(track->db_bo);
576 		/* pitch in pixels */
577 		pitch = (G_028000_PITCH_TILE_MAX(track->db_depth_size) + 1) * 8;
578 		slice_tile_max = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
579 		slice_tile_max *= 64;
580 		height = slice_tile_max / pitch;
581 		if (height > 8192)
582 			height = 8192;
583 		base_offset = track->db_bo_mc + track->db_offset;
584 		array_mode = G_028010_ARRAY_MODE(track->db_depth_info);
585 		array_check.array_mode = array_mode;
586 		array_check.group_size = track->group_size;
587 		array_check.nbanks = track->nbanks;
588 		array_check.npipes = track->npipes;
589 		array_check.nsamples = track->nsamples;
590 		array_check.blocksize = bpe;
591 		if (r600_get_array_mode_alignment(&array_check,
592 					&pitch_align, &height_align, &depth_align, &base_align)) {
593 			dev_warn(p->dev, "%s invalid tiling %d (0x%08X)\n", __func__,
594 					G_028010_ARRAY_MODE(track->db_depth_info),
595 					track->db_depth_info);
596 			return -EINVAL;
597 		}
598 		switch (array_mode) {
599 		case V_028010_ARRAY_1D_TILED_THIN1:
600 			/* don't break userspace */
601 			height &= ~0x7;
602 			break;
603 		case V_028010_ARRAY_2D_TILED_THIN1:
604 			break;
605 		default:
606 			dev_warn(p->dev, "%s invalid tiling %d (0x%08X)\n", __func__,
607 					G_028010_ARRAY_MODE(track->db_depth_info),
608 					track->db_depth_info);
609 			return -EINVAL;
610 		}
611 
612 		if (!IS_ALIGNED(pitch, pitch_align)) {
613 			dev_warn(p->dev, "%s:%d db pitch (%d, 0x%x, %d) invalid\n",
614 					__func__, __LINE__, pitch, pitch_align, array_mode);
615 			return -EINVAL;
616 		}
617 		if (!IS_ALIGNED(height, height_align)) {
618 			dev_warn(p->dev, "%s:%d db height (%d, 0x%x, %d) invalid\n",
619 					__func__, __LINE__, height, height_align, array_mode);
620 			return -EINVAL;
621 		}
622 		if (!IS_ALIGNED(base_offset, base_align)) {
623 			dev_warn(p->dev, "%s offset 0x%jx, 0x%jx, %d not aligned\n", __func__,
624 					(uintmax_t)base_offset, (uintmax_t)base_align, array_mode);
625 			return -EINVAL;
626 		}
627 
628 		ntiles = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
629 		nviews = G_028004_SLICE_MAX(track->db_depth_view) + 1;
630 		tmp = ntiles * bpe * 64 * nviews * track->nsamples;
631 		if ((tmp + track->db_offset) > radeon_bo_size(track->db_bo)) {
632 			dev_warn(p->dev, "z/stencil buffer (%d) too small (0x%08X %d %d %d -> %u have %lu)\n",
633 					array_mode,
634 					track->db_depth_size, ntiles, nviews, bpe, tmp + track->db_offset,
635 					radeon_bo_size(track->db_bo));
636 			return -EINVAL;
637 		}
638 	}
639 
640 	/* hyperz */
641 	if (G_028010_TILE_SURFACE_ENABLE(track->db_depth_info)) {
642 		unsigned long size;
643 		unsigned nbx, nby;
644 
645 		if (track->htile_bo == NULL) {
646 			dev_warn(p->dev, "%s:%d htile enabled without htile surface 0x%08x\n",
647 				 __func__, __LINE__, track->db_depth_info);
648 			return -EINVAL;
649 		}
650 		if ((track->db_depth_size & 0xFFFFFC00) == 0xFFFFFC00) {
651 			dev_warn(p->dev, "%s:%d htile can't be enabled with bogus db_depth_size 0x%08x\n",
652 				 __func__, __LINE__, track->db_depth_size);
653 			return -EINVAL;
654 		}
655 
656 		nbx = pitch;
657 		nby = height;
658 		if (G_028D24_LINEAR(track->htile_surface)) {
659 			/* nbx must be 16 htiles aligned == 16 * 8 pixel aligned */
660 			nbx = roundup2(nbx, 16 * 8);
661 			/* nby is npipes htiles aligned == npipes * 8 pixel aligned */
662 			nby = roundup(nby, track->npipes * 8);
663 		} else {
664 			/* always assume 8x8 htile */
665 			/* align is htile align * 8, htile align vary according to
666 			 * number of pipe and tile width and nby
667 			 */
668 			switch (track->npipes) {
669 			case 8:
670 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
671 				nbx = roundup2(nbx, 64 * 8);
672 				nby = roundup2(nby, 64 * 8);
673 				break;
674 			case 4:
675 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
676 				nbx = roundup2(nbx, 64 * 8);
677 				nby = roundup2(nby, 32 * 8);
678 				break;
679 			case 2:
680 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
681 				nbx = roundup2(nbx, 32 * 8);
682 				nby = roundup2(nby, 32 * 8);
683 				break;
684 			case 1:
685 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
686 				nbx = roundup2(nbx, 32 * 8);
687 				nby = roundup2(nby, 16 * 8);
688 				break;
689 			default:
690 				dev_warn(p->dev, "%s:%d invalid num pipes %d\n",
691 					 __func__, __LINE__, track->npipes);
692 				return -EINVAL;
693 			}
694 		}
695 		/* compute number of htile */
696 		nbx = nbx >> 3;
697 		nby = nby >> 3;
698 		/* size must be aligned on npipes * 2K boundary */
699 		size = roundup(nbx * nby * 4, track->npipes * (2 << 10));
700 		size += track->htile_offset;
701 
702 		if (size > radeon_bo_size(track->htile_bo)) {
703 			dev_warn(p->dev, "%s:%d htile surface too small %ld for %ld (%d %d)\n",
704 				 __func__, __LINE__, radeon_bo_size(track->htile_bo),
705 				 size, nbx, nby);
706 			return -EINVAL;
707 		}
708 	}
709 
710 	track->db_dirty = false;
711 	return 0;
712 }
713 
714 static int r600_cs_track_check(struct radeon_cs_parser *p)
715 {
716 	struct r600_cs_track *track = p->track;
717 	u32 tmp;
718 	int r, i;
719 
720 	/* on legacy kernel we don't perform advanced check */
721 	if (p->rdev == NULL)
722 		return 0;
723 
724 	/* check streamout */
725 	if (track->streamout_dirty && track->vgt_strmout_en) {
726 		for (i = 0; i < 4; i++) {
727 			if (track->vgt_strmout_buffer_en & (1 << i)) {
728 				if (track->vgt_strmout_bo[i]) {
729 					u64 offset = (u64)track->vgt_strmout_bo_offset[i] +
730 						(u64)track->vgt_strmout_size[i];
731 					if (offset > radeon_bo_size(track->vgt_strmout_bo[i])) {
732 						DRM_ERROR("streamout %d bo too small: 0x%jx, 0x%lx\n",
733 							  i, (uintmax_t)offset,
734 							  radeon_bo_size(track->vgt_strmout_bo[i]));
735 						return -EINVAL;
736 					}
737 				} else {
738 					dev_warn(p->dev, "No buffer for streamout %d\n", i);
739 					return -EINVAL;
740 				}
741 			}
742 		}
743 		track->streamout_dirty = false;
744 	}
745 
746 	if (track->sx_misc_kill_all_prims)
747 		return 0;
748 
749 	/* check that we have a cb for each enabled target, we don't check
750 	 * shader_mask because it seems mesa isn't always setting it :(
751 	 */
752 	if (track->cb_dirty) {
753 		tmp = track->cb_target_mask;
754 
755 		/* We must check both colorbuffers for RESOLVE. */
756 		if (track->is_resolve) {
757 			tmp |= 0xff;
758 		}
759 
760 		for (i = 0; i < 8; i++) {
761 			if ((tmp >> (i * 4)) & 0xF) {
762 				/* at least one component is enabled */
763 				if (track->cb_color_bo[i] == NULL) {
764 					dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
765 						__func__, __LINE__, track->cb_target_mask, track->cb_shader_mask, i);
766 					return -EINVAL;
767 				}
768 				/* perform rewrite of CB_COLOR[0-7]_SIZE */
769 				r = r600_cs_track_validate_cb(p, i);
770 				if (r)
771 					return r;
772 			}
773 		}
774 		track->cb_dirty = false;
775 	}
776 
777 	/* Check depth buffer */
778 	if (track->db_dirty &&
779 	    G_028010_FORMAT(track->db_depth_info) != V_028010_DEPTH_INVALID &&
780 	    (G_028800_STENCIL_ENABLE(track->db_depth_control) ||
781 	     G_028800_Z_ENABLE(track->db_depth_control))) {
782 		r = r600_cs_track_validate_db(p);
783 		if (r)
784 			return r;
785 	}
786 
787 	return 0;
788 }
789 
790 /**
791  * r600_cs_packet_parse() - parse cp packet and point ib index to next packet
792  * @parser:	parser structure holding parsing context.
793  * @pkt:	where to store packet informations
794  *
795  * Assume that chunk_ib_index is properly set. Will return -EINVAL
796  * if packet is bigger than remaining ib size. or if packets is unknown.
797  **/
798 static int r600_cs_packet_parse(struct radeon_cs_parser *p,
799 			struct radeon_cs_packet *pkt,
800 			unsigned idx)
801 {
802 	struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
803 	uint32_t header;
804 
805 	if (idx >= ib_chunk->length_dw) {
806 		DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
807 			  idx, ib_chunk->length_dw);
808 		return -EINVAL;
809 	}
810 	header = radeon_get_ib_value(p, idx);
811 	pkt->idx = idx;
812 	pkt->type = CP_PACKET_GET_TYPE(header);
813 	pkt->count = CP_PACKET_GET_COUNT(header);
814 	pkt->one_reg_wr = 0;
815 	switch (pkt->type) {
816 	case PACKET_TYPE0:
817 		pkt->reg = CP_PACKET0_GET_REG(header);
818 		break;
819 	case PACKET_TYPE3:
820 		pkt->opcode = CP_PACKET3_GET_OPCODE(header);
821 		break;
822 	case PACKET_TYPE2:
823 		pkt->count = -1;
824 		break;
825 	default:
826 		DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
827 		return -EINVAL;
828 	}
829 	if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
830 		DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
831 			  pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
832 		return -EINVAL;
833 	}
834 	return 0;
835 }
836 
837 /**
838  * r600_cs_packet_next_reloc_mm() - parse next packet which should be reloc packet3
839  * @parser:		parser structure holding parsing context.
840  * @data:		pointer to relocation data
841  * @offset_start:	starting offset
842  * @offset_mask:	offset mask (to align start offset on)
843  * @reloc:		reloc informations
844  *
845  * Check next packet is relocation packet3, do bo validation and compute
846  * GPU offset using the provided start.
847  **/
848 static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p,
849 					struct radeon_cs_reloc **cs_reloc)
850 {
851 	struct radeon_cs_chunk *relocs_chunk;
852 	struct radeon_cs_packet p3reloc;
853 	unsigned idx;
854 	int r;
855 
856 	if (p->chunk_relocs_idx == -1) {
857 		DRM_ERROR("No relocation chunk !\n");
858 		return -EINVAL;
859 	}
860 	*cs_reloc = NULL;
861 	relocs_chunk = &p->chunks[p->chunk_relocs_idx];
862 	r = r600_cs_packet_parse(p, &p3reloc, p->idx);
863 	if (r) {
864 		return r;
865 	}
866 	p->idx += p3reloc.count + 2;
867 	if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
868 		DRM_ERROR("No packet3 for relocation for packet at %d.\n",
869 			  p3reloc.idx);
870 		return -EINVAL;
871 	}
872 	idx = radeon_get_ib_value(p, p3reloc.idx + 1);
873 	if (idx >= relocs_chunk->length_dw) {
874 		DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
875 			  idx, relocs_chunk->length_dw);
876 		return -EINVAL;
877 	}
878 	/* FIXME: we assume reloc size is 4 dwords */
879 	*cs_reloc = p->relocs_ptr[(idx / 4)];
880 	return 0;
881 }
882 
883 /**
884  * r600_cs_packet_next_reloc_nomm() - parse next packet which should be reloc packet3
885  * @parser:		parser structure holding parsing context.
886  * @data:		pointer to relocation data
887  * @offset_start:	starting offset
888  * @offset_mask:	offset mask (to align start offset on)
889  * @reloc:		reloc informations
890  *
891  * Check next packet is relocation packet3, do bo validation and compute
892  * GPU offset using the provided start.
893  **/
894 static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p,
895 					struct radeon_cs_reloc **cs_reloc)
896 {
897 	struct radeon_cs_chunk *relocs_chunk;
898 	struct radeon_cs_packet p3reloc;
899 	unsigned idx;
900 	int r;
901 
902 	if (p->chunk_relocs_idx == -1) {
903 		DRM_ERROR("No relocation chunk !\n");
904 		return -EINVAL;
905 	}
906 	*cs_reloc = NULL;
907 	relocs_chunk = &p->chunks[p->chunk_relocs_idx];
908 	r = r600_cs_packet_parse(p, &p3reloc, p->idx);
909 	if (r) {
910 		return r;
911 	}
912 	p->idx += p3reloc.count + 2;
913 	if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
914 		DRM_ERROR("No packet3 for relocation for packet at %d.\n",
915 			  p3reloc.idx);
916 		return -EINVAL;
917 	}
918 	idx = radeon_get_ib_value(p, p3reloc.idx + 1);
919 	if (idx >= relocs_chunk->length_dw) {
920 		DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
921 			  idx, relocs_chunk->length_dw);
922 		return -EINVAL;
923 	}
924 	*cs_reloc = p->relocs;
925 	(*cs_reloc)->lobj.gpu_offset = (u64)relocs_chunk->kdata[idx + 3] << 32;
926 	(*cs_reloc)->lobj.gpu_offset |= relocs_chunk->kdata[idx + 0];
927 	return 0;
928 }
929 
930 /**
931  * r600_cs_packet_next_is_pkt3_nop() - test if next packet is packet3 nop for reloc
932  * @parser:		parser structure holding parsing context.
933  *
934  * Check next packet is relocation packet3, do bo validation and compute
935  * GPU offset using the provided start.
936  **/
937 static int r600_cs_packet_next_is_pkt3_nop(struct radeon_cs_parser *p)
938 {
939 	struct radeon_cs_packet p3reloc;
940 	int r;
941 
942 	r = r600_cs_packet_parse(p, &p3reloc, p->idx);
943 	if (r) {
944 		return 0;
945 	}
946 	if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
947 		return 0;
948 	}
949 	return 1;
950 }
951 
952 /**
953  * r600_cs_packet_next_vline() - parse userspace VLINE packet
954  * @parser:		parser structure holding parsing context.
955  *
956  * Userspace sends a special sequence for VLINE waits.
957  * PACKET0 - VLINE_START_END + value
958  * PACKET3 - WAIT_REG_MEM poll vline status reg
959  * RELOC (P3) - crtc_id in reloc.
960  *
961  * This function parses this and relocates the VLINE START END
962  * and WAIT_REG_MEM packets to the correct crtc.
963  * It also detects a switched off crtc and nulls out the
964  * wait in that case.
965  */
966 static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
967 {
968 	struct drm_mode_object *obj;
969 	struct drm_crtc *crtc;
970 	struct radeon_crtc *radeon_crtc;
971 	struct radeon_cs_packet p3reloc, wait_reg_mem;
972 	int crtc_id;
973 	int r;
974 	uint32_t header, h_idx, reg, wait_reg_mem_info;
975 	volatile uint32_t *ib;
976 
977 	ib = p->ib.ptr;
978 
979 	/* parse the WAIT_REG_MEM */
980 	r = r600_cs_packet_parse(p, &wait_reg_mem, p->idx);
981 	if (r)
982 		return r;
983 
984 	/* check its a WAIT_REG_MEM */
985 	if (wait_reg_mem.type != PACKET_TYPE3 ||
986 	    wait_reg_mem.opcode != PACKET3_WAIT_REG_MEM) {
987 		DRM_ERROR("vline wait missing WAIT_REG_MEM segment\n");
988 		return -EINVAL;
989 	}
990 
991 	wait_reg_mem_info = radeon_get_ib_value(p, wait_reg_mem.idx + 1);
992 	/* bit 4 is reg (0) or mem (1) */
993 	if (wait_reg_mem_info & 0x10) {
994 		DRM_ERROR("vline WAIT_REG_MEM waiting on MEM rather than REG\n");
995 		return -EINVAL;
996 	}
997 	/* waiting for value to be equal */
998 	if ((wait_reg_mem_info & 0x7) != 0x3) {
999 		DRM_ERROR("vline WAIT_REG_MEM function not equal\n");
1000 		return -EINVAL;
1001 	}
1002 	if ((radeon_get_ib_value(p, wait_reg_mem.idx + 2) << 2) != AVIVO_D1MODE_VLINE_STATUS) {
1003 		DRM_ERROR("vline WAIT_REG_MEM bad reg\n");
1004 		return -EINVAL;
1005 	}
1006 
1007 	if (radeon_get_ib_value(p, wait_reg_mem.idx + 5) != AVIVO_D1MODE_VLINE_STAT) {
1008 		DRM_ERROR("vline WAIT_REG_MEM bad bit mask\n");
1009 		return -EINVAL;
1010 	}
1011 
1012 	/* jump over the NOP */
1013 	r = r600_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
1014 	if (r)
1015 		return r;
1016 
1017 	h_idx = p->idx - 2;
1018 	p->idx += wait_reg_mem.count + 2;
1019 	p->idx += p3reloc.count + 2;
1020 
1021 	header = radeon_get_ib_value(p, h_idx);
1022 	crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
1023 	reg = CP_PACKET0_GET_REG(header);
1024 
1025 	obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
1026 	if (!obj) {
1027 		DRM_ERROR("cannot find crtc %d\n", crtc_id);
1028 		return -EINVAL;
1029 	}
1030 	crtc = obj_to_crtc(obj);
1031 	radeon_crtc = to_radeon_crtc(crtc);
1032 	crtc_id = radeon_crtc->crtc_id;
1033 
1034 	if (!crtc->enabled) {
1035 		/* if the CRTC isn't enabled - we need to nop out the WAIT_REG_MEM */
1036 		ib[h_idx + 2] = PACKET2(0);
1037 		ib[h_idx + 3] = PACKET2(0);
1038 		ib[h_idx + 4] = PACKET2(0);
1039 		ib[h_idx + 5] = PACKET2(0);
1040 		ib[h_idx + 6] = PACKET2(0);
1041 		ib[h_idx + 7] = PACKET2(0);
1042 		ib[h_idx + 8] = PACKET2(0);
1043 	} else if (crtc_id == 1) {
1044 		switch (reg) {
1045 		case AVIVO_D1MODE_VLINE_START_END:
1046 			header &= ~R600_CP_PACKET0_REG_MASK;
1047 			header |= AVIVO_D2MODE_VLINE_START_END >> 2;
1048 			break;
1049 		default:
1050 			DRM_ERROR("unknown crtc reloc\n");
1051 			return -EINVAL;
1052 		}
1053 		ib[h_idx] = header;
1054 		ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2;
1055 	}
1056 
1057 	return 0;
1058 }
1059 
1060 static int r600_packet0_check(struct radeon_cs_parser *p,
1061 				struct radeon_cs_packet *pkt,
1062 				unsigned idx, unsigned reg)
1063 {
1064 	int r;
1065 
1066 	switch (reg) {
1067 	case AVIVO_D1MODE_VLINE_START_END:
1068 		r = r600_cs_packet_parse_vline(p);
1069 		if (r) {
1070 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1071 					idx, reg);
1072 			return r;
1073 		}
1074 		break;
1075 	default:
1076 		DRM_ERROR("Forbidden register 0x%04X in cs at %d\n",
1077 		       reg, idx);
1078 		return -EINVAL;
1079 	}
1080 	return 0;
1081 }
1082 
1083 static int r600_cs_parse_packet0(struct radeon_cs_parser *p,
1084 				struct radeon_cs_packet *pkt)
1085 {
1086 	unsigned reg, i;
1087 	unsigned idx;
1088 	int r;
1089 
1090 	idx = pkt->idx + 1;
1091 	reg = pkt->reg;
1092 	for (i = 0; i <= pkt->count; i++, idx++, reg += 4) {
1093 		r = r600_packet0_check(p, pkt, idx, reg);
1094 		if (r) {
1095 			return r;
1096 		}
1097 	}
1098 	return 0;
1099 }
1100 
1101 /**
1102  * r600_cs_check_reg() - check if register is authorized or not
1103  * @parser: parser structure holding parsing context
1104  * @reg: register we are testing
1105  * @idx: index into the cs buffer
1106  *
1107  * This function will test against r600_reg_safe_bm and return 0
1108  * if register is safe. If register is not flag as safe this function
1109  * will test it against a list of register needind special handling.
1110  */
1111 static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
1112 {
1113 	struct r600_cs_track *track = (struct r600_cs_track *)p->track;
1114 	struct radeon_cs_reloc *reloc;
1115 	u32 m, i, tmp, *ib;
1116 	int r;
1117 
1118 	i = (reg >> 7);
1119 	if (i >= DRM_ARRAY_SIZE(r600_reg_safe_bm)) {
1120 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1121 		return -EINVAL;
1122 	}
1123 	m = 1 << ((reg >> 2) & 31);
1124 	if (!(r600_reg_safe_bm[i] & m))
1125 		return 0;
1126 	ib = p->ib.ptr;
1127 	switch (reg) {
1128 	/* force following reg to 0 in an attempt to disable out buffer
1129 	 * which will need us to better understand how it works to perform
1130 	 * security check on it (Jerome)
1131 	 */
1132 	case R_0288A8_SQ_ESGS_RING_ITEMSIZE:
1133 	case R_008C44_SQ_ESGS_RING_SIZE:
1134 	case R_0288B0_SQ_ESTMP_RING_ITEMSIZE:
1135 	case R_008C54_SQ_ESTMP_RING_SIZE:
1136 	case R_0288C0_SQ_FBUF_RING_ITEMSIZE:
1137 	case R_008C74_SQ_FBUF_RING_SIZE:
1138 	case R_0288B4_SQ_GSTMP_RING_ITEMSIZE:
1139 	case R_008C5C_SQ_GSTMP_RING_SIZE:
1140 	case R_0288AC_SQ_GSVS_RING_ITEMSIZE:
1141 	case R_008C4C_SQ_GSVS_RING_SIZE:
1142 	case R_0288BC_SQ_PSTMP_RING_ITEMSIZE:
1143 	case R_008C6C_SQ_PSTMP_RING_SIZE:
1144 	case R_0288C4_SQ_REDUC_RING_ITEMSIZE:
1145 	case R_008C7C_SQ_REDUC_RING_SIZE:
1146 	case R_0288B8_SQ_VSTMP_RING_ITEMSIZE:
1147 	case R_008C64_SQ_VSTMP_RING_SIZE:
1148 	case R_0288C8_SQ_GS_VERT_ITEMSIZE:
1149 		/* get value to populate the IB don't remove */
1150 		tmp =radeon_get_ib_value(p, idx);
1151 		ib[idx] = 0;
1152 		break;
1153 	case SQ_CONFIG:
1154 		track->sq_config = radeon_get_ib_value(p, idx);
1155 		break;
1156 	case R_028800_DB_DEPTH_CONTROL:
1157 		track->db_depth_control = radeon_get_ib_value(p, idx);
1158 		track->db_dirty = true;
1159 		break;
1160 	case R_028010_DB_DEPTH_INFO:
1161 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) &&
1162 		    r600_cs_packet_next_is_pkt3_nop(p)) {
1163 			r = r600_cs_packet_next_reloc(p, &reloc);
1164 			if (r) {
1165 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
1166 					 "0x%04X\n", reg);
1167 				return -EINVAL;
1168 			}
1169 			track->db_depth_info = radeon_get_ib_value(p, idx);
1170 			ib[idx] &= C_028010_ARRAY_MODE;
1171 			track->db_depth_info &= C_028010_ARRAY_MODE;
1172 			if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) {
1173 				ib[idx] |= S_028010_ARRAY_MODE(V_028010_ARRAY_2D_TILED_THIN1);
1174 				track->db_depth_info |= S_028010_ARRAY_MODE(V_028010_ARRAY_2D_TILED_THIN1);
1175 			} else {
1176 				ib[idx] |= S_028010_ARRAY_MODE(V_028010_ARRAY_1D_TILED_THIN1);
1177 				track->db_depth_info |= S_028010_ARRAY_MODE(V_028010_ARRAY_1D_TILED_THIN1);
1178 			}
1179 		} else {
1180 			track->db_depth_info = radeon_get_ib_value(p, idx);
1181 		}
1182 		track->db_dirty = true;
1183 		break;
1184 	case R_028004_DB_DEPTH_VIEW:
1185 		track->db_depth_view = radeon_get_ib_value(p, idx);
1186 		track->db_dirty = true;
1187 		break;
1188 	case R_028000_DB_DEPTH_SIZE:
1189 		track->db_depth_size = radeon_get_ib_value(p, idx);
1190 		track->db_depth_size_idx = idx;
1191 		track->db_dirty = true;
1192 		break;
1193 	case R_028AB0_VGT_STRMOUT_EN:
1194 		track->vgt_strmout_en = radeon_get_ib_value(p, idx);
1195 		track->streamout_dirty = true;
1196 		break;
1197 	case R_028B20_VGT_STRMOUT_BUFFER_EN:
1198 		track->vgt_strmout_buffer_en = radeon_get_ib_value(p, idx);
1199 		track->streamout_dirty = true;
1200 		break;
1201 	case VGT_STRMOUT_BUFFER_BASE_0:
1202 	case VGT_STRMOUT_BUFFER_BASE_1:
1203 	case VGT_STRMOUT_BUFFER_BASE_2:
1204 	case VGT_STRMOUT_BUFFER_BASE_3:
1205 		r = r600_cs_packet_next_reloc(p, &reloc);
1206 		if (r) {
1207 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1208 					"0x%04X\n", reg);
1209 			return -EINVAL;
1210 		}
1211 		tmp = (reg - VGT_STRMOUT_BUFFER_BASE_0) / 16;
1212 		track->vgt_strmout_bo_offset[tmp] = radeon_get_ib_value(p, idx) << 8;
1213 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1214 		track->vgt_strmout_bo[tmp] = reloc->robj;
1215 		track->vgt_strmout_bo_mc[tmp] = reloc->lobj.gpu_offset;
1216 		track->streamout_dirty = true;
1217 		break;
1218 	case VGT_STRMOUT_BUFFER_SIZE_0:
1219 	case VGT_STRMOUT_BUFFER_SIZE_1:
1220 	case VGT_STRMOUT_BUFFER_SIZE_2:
1221 	case VGT_STRMOUT_BUFFER_SIZE_3:
1222 		tmp = (reg - VGT_STRMOUT_BUFFER_SIZE_0) / 16;
1223 		/* size in register is DWs, convert to bytes */
1224 		track->vgt_strmout_size[tmp] = radeon_get_ib_value(p, idx) * 4;
1225 		track->streamout_dirty = true;
1226 		break;
1227 	case CP_COHER_BASE:
1228 		r = r600_cs_packet_next_reloc(p, &reloc);
1229 		if (r) {
1230 			dev_warn(p->dev, "missing reloc for CP_COHER_BASE "
1231 					"0x%04X\n", reg);
1232 			return -EINVAL;
1233 		}
1234 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1235 		break;
1236 	case R_028238_CB_TARGET_MASK:
1237 		track->cb_target_mask = radeon_get_ib_value(p, idx);
1238 		track->cb_dirty = true;
1239 		break;
1240 	case R_02823C_CB_SHADER_MASK:
1241 		track->cb_shader_mask = radeon_get_ib_value(p, idx);
1242 		break;
1243 	case R_028C04_PA_SC_AA_CONFIG:
1244 		tmp = G_028C04_MSAA_NUM_SAMPLES(radeon_get_ib_value(p, idx));
1245 		track->log_nsamples = tmp;
1246 		track->nsamples = 1 << tmp;
1247 		track->cb_dirty = true;
1248 		break;
1249 	case R_028808_CB_COLOR_CONTROL:
1250 		tmp = G_028808_SPECIAL_OP(radeon_get_ib_value(p, idx));
1251 		track->is_resolve = tmp == V_028808_SPECIAL_RESOLVE_BOX;
1252 		track->cb_dirty = true;
1253 		break;
1254 	case R_0280A0_CB_COLOR0_INFO:
1255 	case R_0280A4_CB_COLOR1_INFO:
1256 	case R_0280A8_CB_COLOR2_INFO:
1257 	case R_0280AC_CB_COLOR3_INFO:
1258 	case R_0280B0_CB_COLOR4_INFO:
1259 	case R_0280B4_CB_COLOR5_INFO:
1260 	case R_0280B8_CB_COLOR6_INFO:
1261 	case R_0280BC_CB_COLOR7_INFO:
1262 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) &&
1263 		     r600_cs_packet_next_is_pkt3_nop(p)) {
1264 			r = r600_cs_packet_next_reloc(p, &reloc);
1265 			if (r) {
1266 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
1267 				return -EINVAL;
1268 			}
1269 			tmp = (reg - R_0280A0_CB_COLOR0_INFO) / 4;
1270 			track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
1271 			if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) {
1272 				ib[idx] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_2D_TILED_THIN1);
1273 				track->cb_color_info[tmp] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_2D_TILED_THIN1);
1274 			} else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) {
1275 				ib[idx] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_1D_TILED_THIN1);
1276 				track->cb_color_info[tmp] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_1D_TILED_THIN1);
1277 			}
1278 		} else {
1279 			tmp = (reg - R_0280A0_CB_COLOR0_INFO) / 4;
1280 			track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
1281 		}
1282 		track->cb_dirty = true;
1283 		break;
1284 	case R_028080_CB_COLOR0_VIEW:
1285 	case R_028084_CB_COLOR1_VIEW:
1286 	case R_028088_CB_COLOR2_VIEW:
1287 	case R_02808C_CB_COLOR3_VIEW:
1288 	case R_028090_CB_COLOR4_VIEW:
1289 	case R_028094_CB_COLOR5_VIEW:
1290 	case R_028098_CB_COLOR6_VIEW:
1291 	case R_02809C_CB_COLOR7_VIEW:
1292 		tmp = (reg - R_028080_CB_COLOR0_VIEW) / 4;
1293 		track->cb_color_view[tmp] = radeon_get_ib_value(p, idx);
1294 		track->cb_dirty = true;
1295 		break;
1296 	case R_028060_CB_COLOR0_SIZE:
1297 	case R_028064_CB_COLOR1_SIZE:
1298 	case R_028068_CB_COLOR2_SIZE:
1299 	case R_02806C_CB_COLOR3_SIZE:
1300 	case R_028070_CB_COLOR4_SIZE:
1301 	case R_028074_CB_COLOR5_SIZE:
1302 	case R_028078_CB_COLOR6_SIZE:
1303 	case R_02807C_CB_COLOR7_SIZE:
1304 		tmp = (reg - R_028060_CB_COLOR0_SIZE) / 4;
1305 		track->cb_color_size[tmp] = radeon_get_ib_value(p, idx);
1306 		track->cb_color_size_idx[tmp] = idx;
1307 		track->cb_dirty = true;
1308 		break;
1309 		/* This register were added late, there is userspace
1310 		 * which does provide relocation for those but set
1311 		 * 0 offset. In order to avoid breaking old userspace
1312 		 * we detect this and set address to point to last
1313 		 * CB_COLOR0_BASE, note that if userspace doesn't set
1314 		 * CB_COLOR0_BASE before this register we will report
1315 		 * error. Old userspace always set CB_COLOR0_BASE
1316 		 * before any of this.
1317 		 */
1318 	case R_0280E0_CB_COLOR0_FRAG:
1319 	case R_0280E4_CB_COLOR1_FRAG:
1320 	case R_0280E8_CB_COLOR2_FRAG:
1321 	case R_0280EC_CB_COLOR3_FRAG:
1322 	case R_0280F0_CB_COLOR4_FRAG:
1323 	case R_0280F4_CB_COLOR5_FRAG:
1324 	case R_0280F8_CB_COLOR6_FRAG:
1325 	case R_0280FC_CB_COLOR7_FRAG:
1326 		tmp = (reg - R_0280E0_CB_COLOR0_FRAG) / 4;
1327 		if (!r600_cs_packet_next_is_pkt3_nop(p)) {
1328 			if (!track->cb_color_base_last[tmp]) {
1329 				dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
1330 				return -EINVAL;
1331 			}
1332 			track->cb_color_frag_bo[tmp] = track->cb_color_bo[tmp];
1333 			track->cb_color_frag_offset[tmp] = track->cb_color_bo_offset[tmp];
1334 			ib[idx] = track->cb_color_base_last[tmp];
1335 		} else {
1336 			r = r600_cs_packet_next_reloc(p, &reloc);
1337 			if (r) {
1338 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
1339 				return -EINVAL;
1340 			}
1341 			track->cb_color_frag_bo[tmp] = reloc->robj;
1342 			track->cb_color_frag_offset[tmp] = (u64)ib[idx] << 8;
1343 			ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1344 		}
1345 		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
1346 			track->cb_dirty = true;
1347 		}
1348 		break;
1349 	case R_0280C0_CB_COLOR0_TILE:
1350 	case R_0280C4_CB_COLOR1_TILE:
1351 	case R_0280C8_CB_COLOR2_TILE:
1352 	case R_0280CC_CB_COLOR3_TILE:
1353 	case R_0280D0_CB_COLOR4_TILE:
1354 	case R_0280D4_CB_COLOR5_TILE:
1355 	case R_0280D8_CB_COLOR6_TILE:
1356 	case R_0280DC_CB_COLOR7_TILE:
1357 		tmp = (reg - R_0280C0_CB_COLOR0_TILE) / 4;
1358 		if (!r600_cs_packet_next_is_pkt3_nop(p)) {
1359 			if (!track->cb_color_base_last[tmp]) {
1360 				dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
1361 				return -EINVAL;
1362 			}
1363 			track->cb_color_tile_bo[tmp] = track->cb_color_bo[tmp];
1364 			track->cb_color_tile_offset[tmp] = track->cb_color_bo_offset[tmp];
1365 			ib[idx] = track->cb_color_base_last[tmp];
1366 		} else {
1367 			r = r600_cs_packet_next_reloc(p, &reloc);
1368 			if (r) {
1369 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
1370 				return -EINVAL;
1371 			}
1372 			track->cb_color_tile_bo[tmp] = reloc->robj;
1373 			track->cb_color_tile_offset[tmp] = (u64)ib[idx] << 8;
1374 			ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1375 		}
1376 		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
1377 			track->cb_dirty = true;
1378 		}
1379 		break;
1380 	case R_028100_CB_COLOR0_MASK:
1381 	case R_028104_CB_COLOR1_MASK:
1382 	case R_028108_CB_COLOR2_MASK:
1383 	case R_02810C_CB_COLOR3_MASK:
1384 	case R_028110_CB_COLOR4_MASK:
1385 	case R_028114_CB_COLOR5_MASK:
1386 	case R_028118_CB_COLOR6_MASK:
1387 	case R_02811C_CB_COLOR7_MASK:
1388 		tmp = (reg - R_028100_CB_COLOR0_MASK) / 4;
1389 		track->cb_color_mask[tmp] = radeon_get_ib_value(p, idx);
1390 		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
1391 			track->cb_dirty = true;
1392 		}
1393 		break;
1394 	case CB_COLOR0_BASE:
1395 	case CB_COLOR1_BASE:
1396 	case CB_COLOR2_BASE:
1397 	case CB_COLOR3_BASE:
1398 	case CB_COLOR4_BASE:
1399 	case CB_COLOR5_BASE:
1400 	case CB_COLOR6_BASE:
1401 	case CB_COLOR7_BASE:
1402 		r = r600_cs_packet_next_reloc(p, &reloc);
1403 		if (r) {
1404 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1405 					"0x%04X\n", reg);
1406 			return -EINVAL;
1407 		}
1408 		tmp = (reg - CB_COLOR0_BASE) / 4;
1409 		track->cb_color_bo_offset[tmp] = radeon_get_ib_value(p, idx) << 8;
1410 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1411 		track->cb_color_base_last[tmp] = ib[idx];
1412 		track->cb_color_bo[tmp] = reloc->robj;
1413 		track->cb_color_bo_mc[tmp] = reloc->lobj.gpu_offset;
1414 		track->cb_dirty = true;
1415 		break;
1416 	case DB_DEPTH_BASE:
1417 		r = r600_cs_packet_next_reloc(p, &reloc);
1418 		if (r) {
1419 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1420 					"0x%04X\n", reg);
1421 			return -EINVAL;
1422 		}
1423 		track->db_offset = radeon_get_ib_value(p, idx) << 8;
1424 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1425 		track->db_bo = reloc->robj;
1426 		track->db_bo_mc = reloc->lobj.gpu_offset;
1427 		track->db_dirty = true;
1428 		break;
1429 	case DB_HTILE_DATA_BASE:
1430 		r = r600_cs_packet_next_reloc(p, &reloc);
1431 		if (r) {
1432 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1433 					"0x%04X\n", reg);
1434 			return -EINVAL;
1435 		}
1436 		track->htile_offset = radeon_get_ib_value(p, idx) << 8;
1437 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1438 		track->htile_bo = reloc->robj;
1439 		track->db_dirty = true;
1440 		break;
1441 	case DB_HTILE_SURFACE:
1442 		track->htile_surface = radeon_get_ib_value(p, idx);
1443 		/* force 8x8 htile width and height */
1444 		ib[idx] |= 3;
1445 		track->db_dirty = true;
1446 		break;
1447 	case SQ_PGM_START_FS:
1448 	case SQ_PGM_START_ES:
1449 	case SQ_PGM_START_VS:
1450 	case SQ_PGM_START_GS:
1451 	case SQ_PGM_START_PS:
1452 	case SQ_ALU_CONST_CACHE_GS_0:
1453 	case SQ_ALU_CONST_CACHE_GS_1:
1454 	case SQ_ALU_CONST_CACHE_GS_2:
1455 	case SQ_ALU_CONST_CACHE_GS_3:
1456 	case SQ_ALU_CONST_CACHE_GS_4:
1457 	case SQ_ALU_CONST_CACHE_GS_5:
1458 	case SQ_ALU_CONST_CACHE_GS_6:
1459 	case SQ_ALU_CONST_CACHE_GS_7:
1460 	case SQ_ALU_CONST_CACHE_GS_8:
1461 	case SQ_ALU_CONST_CACHE_GS_9:
1462 	case SQ_ALU_CONST_CACHE_GS_10:
1463 	case SQ_ALU_CONST_CACHE_GS_11:
1464 	case SQ_ALU_CONST_CACHE_GS_12:
1465 	case SQ_ALU_CONST_CACHE_GS_13:
1466 	case SQ_ALU_CONST_CACHE_GS_14:
1467 	case SQ_ALU_CONST_CACHE_GS_15:
1468 	case SQ_ALU_CONST_CACHE_PS_0:
1469 	case SQ_ALU_CONST_CACHE_PS_1:
1470 	case SQ_ALU_CONST_CACHE_PS_2:
1471 	case SQ_ALU_CONST_CACHE_PS_3:
1472 	case SQ_ALU_CONST_CACHE_PS_4:
1473 	case SQ_ALU_CONST_CACHE_PS_5:
1474 	case SQ_ALU_CONST_CACHE_PS_6:
1475 	case SQ_ALU_CONST_CACHE_PS_7:
1476 	case SQ_ALU_CONST_CACHE_PS_8:
1477 	case SQ_ALU_CONST_CACHE_PS_9:
1478 	case SQ_ALU_CONST_CACHE_PS_10:
1479 	case SQ_ALU_CONST_CACHE_PS_11:
1480 	case SQ_ALU_CONST_CACHE_PS_12:
1481 	case SQ_ALU_CONST_CACHE_PS_13:
1482 	case SQ_ALU_CONST_CACHE_PS_14:
1483 	case SQ_ALU_CONST_CACHE_PS_15:
1484 	case SQ_ALU_CONST_CACHE_VS_0:
1485 	case SQ_ALU_CONST_CACHE_VS_1:
1486 	case SQ_ALU_CONST_CACHE_VS_2:
1487 	case SQ_ALU_CONST_CACHE_VS_3:
1488 	case SQ_ALU_CONST_CACHE_VS_4:
1489 	case SQ_ALU_CONST_CACHE_VS_5:
1490 	case SQ_ALU_CONST_CACHE_VS_6:
1491 	case SQ_ALU_CONST_CACHE_VS_7:
1492 	case SQ_ALU_CONST_CACHE_VS_8:
1493 	case SQ_ALU_CONST_CACHE_VS_9:
1494 	case SQ_ALU_CONST_CACHE_VS_10:
1495 	case SQ_ALU_CONST_CACHE_VS_11:
1496 	case SQ_ALU_CONST_CACHE_VS_12:
1497 	case SQ_ALU_CONST_CACHE_VS_13:
1498 	case SQ_ALU_CONST_CACHE_VS_14:
1499 	case SQ_ALU_CONST_CACHE_VS_15:
1500 		r = r600_cs_packet_next_reloc(p, &reloc);
1501 		if (r) {
1502 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
1503 					"0x%04X\n", reg);
1504 			return -EINVAL;
1505 		}
1506 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1507 		break;
1508 	case SX_MEMORY_EXPORT_BASE:
1509 		r = r600_cs_packet_next_reloc(p, &reloc);
1510 		if (r) {
1511 			dev_warn(p->dev, "bad SET_CONFIG_REG "
1512 					"0x%04X\n", reg);
1513 			return -EINVAL;
1514 		}
1515 		ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1516 		break;
1517 	case SX_MISC:
1518 		track->sx_misc_kill_all_prims = (radeon_get_ib_value(p, idx) & 0x1) != 0;
1519 		break;
1520 	default:
1521 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1522 		return -EINVAL;
1523 	}
1524 	return 0;
1525 }
1526 
1527 unsigned r600_mip_minify(unsigned size, unsigned level)
1528 {
1529 	unsigned val;
1530 
1531 	val = max(1U, size >> level);
1532 	if (level > 0)
1533 		val = roundup_pow_of_two(val);
1534 	return val;
1535 }
1536 
1537 static void r600_texture_size(unsigned nfaces, unsigned blevel, unsigned llevel,
1538 			      unsigned w0, unsigned h0, unsigned d0, unsigned nsamples, unsigned format,
1539 			      unsigned block_align, unsigned height_align, unsigned base_align,
1540 			      unsigned *l0_size, unsigned *mipmap_size)
1541 {
1542 	unsigned offset, i, level;
1543 	unsigned width, height, depth, size;
1544 	unsigned blocksize;
1545 	unsigned nbx, nby;
1546 	unsigned nlevels = llevel - blevel + 1;
1547 
1548 	*l0_size = -1;
1549 	blocksize = r600_fmt_get_blocksize(format);
1550 
1551 	w0 = r600_mip_minify(w0, 0);
1552 	h0 = r600_mip_minify(h0, 0);
1553 	d0 = r600_mip_minify(d0, 0);
1554 	for(i = 0, offset = 0, level = blevel; i < nlevels; i++, level++) {
1555 		width = r600_mip_minify(w0, i);
1556 		nbx = r600_fmt_get_nblocksx(format, width);
1557 
1558 		nbx = roundup(nbx, block_align);
1559 
1560 		height = r600_mip_minify(h0, i);
1561 		nby = r600_fmt_get_nblocksy(format, height);
1562 		nby = roundup(nby, height_align);
1563 
1564 		depth = r600_mip_minify(d0, i);
1565 
1566 		size = nbx * nby * blocksize * nsamples;
1567 		if (nfaces)
1568 			size *= nfaces;
1569 		else
1570 			size *= depth;
1571 
1572 		if (i == 0)
1573 			*l0_size = size;
1574 
1575 		if (i == 0 || i == 1)
1576 			offset = roundup(offset, base_align);
1577 
1578 		offset += size;
1579 	}
1580 	*mipmap_size = offset;
1581 	if (llevel == 0)
1582 		*mipmap_size = *l0_size;
1583 	if (!blevel)
1584 		*mipmap_size -= *l0_size;
1585 }
1586 
1587 /**
1588  * r600_check_texture_resource() - check if register is authorized or not
1589  * @p: parser structure holding parsing context
1590  * @idx: index into the cs buffer
1591  * @texture: texture's bo structure
1592  * @mipmap: mipmap's bo structure
1593  *
1594  * This function will check that the resource has valid field and that
1595  * the texture and mipmap bo object are big enough to cover this resource.
1596  */
1597 static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
1598 					      struct radeon_bo *texture,
1599 					      struct radeon_bo *mipmap,
1600 					      u64 base_offset,
1601 					      u64 mip_offset,
1602 					      u32 tiling_flags)
1603 {
1604 	struct r600_cs_track *track = p->track;
1605 	u32 dim, nfaces, llevel, blevel, w0, h0, d0;
1606 	u32 word0, word1, l0_size, mipmap_size, word2, word3, word4, word5;
1607 	u32 height_align, pitch, pitch_align, depth_align;
1608 	u32 barray, larray;
1609 	u64 base_align;
1610 	struct array_mode_checker array_check;
1611 	u32 format;
1612 	bool is_array;
1613 
1614 	/* on legacy kernel we don't perform advanced check */
1615 	if (p->rdev == NULL)
1616 		return 0;
1617 
1618 	/* convert to bytes */
1619 	base_offset <<= 8;
1620 	mip_offset <<= 8;
1621 
1622 	word0 = radeon_get_ib_value(p, idx + 0);
1623 	if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
1624 		if (tiling_flags & RADEON_TILING_MACRO)
1625 			word0 |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
1626 		else if (tiling_flags & RADEON_TILING_MICRO)
1627 			word0 |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
1628 	}
1629 	word1 = radeon_get_ib_value(p, idx + 1);
1630 	word2 = radeon_get_ib_value(p, idx + 2) << 8;
1631 	word3 = radeon_get_ib_value(p, idx + 3) << 8;
1632 	word4 = radeon_get_ib_value(p, idx + 4);
1633 	word5 = radeon_get_ib_value(p, idx + 5);
1634 	dim = G_038000_DIM(word0);
1635 	w0 = G_038000_TEX_WIDTH(word0) + 1;
1636 	pitch = (G_038000_PITCH(word0) + 1) * 8;
1637 	h0 = G_038004_TEX_HEIGHT(word1) + 1;
1638 	d0 = G_038004_TEX_DEPTH(word1);
1639 	format = G_038004_DATA_FORMAT(word1);
1640 	blevel = G_038010_BASE_LEVEL(word4);
1641 	llevel = G_038014_LAST_LEVEL(word5);
1642 	/* pitch in texels */
1643 	array_check.array_mode = G_038000_TILE_MODE(word0);
1644 	array_check.group_size = track->group_size;
1645 	array_check.nbanks = track->nbanks;
1646 	array_check.npipes = track->npipes;
1647 	array_check.nsamples = 1;
1648 	array_check.blocksize = r600_fmt_get_blocksize(format);
1649 	nfaces = 1;
1650 	is_array = false;
1651 	switch (dim) {
1652 	case V_038000_SQ_TEX_DIM_1D:
1653 	case V_038000_SQ_TEX_DIM_2D:
1654 	case V_038000_SQ_TEX_DIM_3D:
1655 		break;
1656 	case V_038000_SQ_TEX_DIM_CUBEMAP:
1657 		if (p->family >= CHIP_RV770)
1658 			nfaces = 8;
1659 		else
1660 			nfaces = 6;
1661 		break;
1662 	case V_038000_SQ_TEX_DIM_1D_ARRAY:
1663 	case V_038000_SQ_TEX_DIM_2D_ARRAY:
1664 		is_array = true;
1665 		break;
1666 	case V_038000_SQ_TEX_DIM_2D_ARRAY_MSAA:
1667 		is_array = true;
1668 		/* fall through */
1669 	case V_038000_SQ_TEX_DIM_2D_MSAA:
1670 		array_check.nsamples = 1 << llevel;
1671 		llevel = 0;
1672 		break;
1673 	default:
1674 		dev_warn(p->dev, "this kernel doesn't support %d texture dim\n", G_038000_DIM(word0));
1675 		return -EINVAL;
1676 	}
1677 	if (!r600_fmt_is_valid_texture(format, p->family)) {
1678 		dev_warn(p->dev, "%s:%d texture invalid format %d\n",
1679 			 __func__, __LINE__, format);
1680 		return -EINVAL;
1681 	}
1682 
1683 	if (r600_get_array_mode_alignment(&array_check,
1684 					  &pitch_align, &height_align, &depth_align, &base_align)) {
1685 		dev_warn(p->dev, "%s:%d tex array mode (%d) invalid\n",
1686 			 __func__, __LINE__, G_038000_TILE_MODE(word0));
1687 		return -EINVAL;
1688 	}
1689 
1690 	/* XXX check height as well... */
1691 
1692 	if (!IS_ALIGNED(pitch, pitch_align)) {
1693 		dev_warn(p->dev, "%s:%d tex pitch (%d, 0x%x, %d) invalid\n",
1694 			 __func__, __LINE__, pitch, pitch_align, G_038000_TILE_MODE(word0));
1695 		return -EINVAL;
1696 	}
1697 	if (!IS_ALIGNED(base_offset, base_align)) {
1698 		dev_warn(p->dev, "%s:%d tex base offset (0x%jx, 0x%jx, %d) invalid\n",
1699 			 __func__, __LINE__, (uintmax_t)base_offset, (uintmax_t)base_align, G_038000_TILE_MODE(word0));
1700 		return -EINVAL;
1701 	}
1702 	if (!IS_ALIGNED(mip_offset, base_align)) {
1703 		dev_warn(p->dev, "%s:%d tex mip offset (0x%jx, 0x%jx, %d) invalid\n",
1704 			 __func__, __LINE__, (uintmax_t)mip_offset, (uintmax_t)base_align, G_038000_TILE_MODE(word0));
1705 		return -EINVAL;
1706 	}
1707 
1708 	if (blevel > llevel) {
1709 		dev_warn(p->dev, "texture blevel %d > llevel %d\n",
1710 			 blevel, llevel);
1711 	}
1712 	if (is_array) {
1713 		barray = G_038014_BASE_ARRAY(word5);
1714 		larray = G_038014_LAST_ARRAY(word5);
1715 
1716 		nfaces = larray - barray + 1;
1717 	}
1718 	r600_texture_size(nfaces, blevel, llevel, w0, h0, d0, array_check.nsamples, format,
1719 			  pitch_align, height_align, base_align,
1720 			  &l0_size, &mipmap_size);
1721 	/* using get ib will give us the offset into the texture bo */
1722 	if ((l0_size + word2) > radeon_bo_size(texture)) {
1723 		dev_warn(p->dev, "texture bo too small ((%d %d) (%d %d) %d %d %d -> %d have %ld)\n",
1724 			 w0, h0, pitch_align, height_align,
1725 			 array_check.array_mode, format, word2,
1726 			 l0_size, radeon_bo_size(texture));
1727 		dev_warn(p->dev, "alignments %d %d %d %jd\n", pitch, pitch_align, height_align, (uintmax_t)base_align);
1728 		return -EINVAL;
1729 	}
1730 	/* using get ib will give us the offset into the mipmap bo */
1731 	if ((mipmap_size + word3) > radeon_bo_size(mipmap)) {
1732 		/*dev_warn(p->dev, "mipmap bo too small (%d %d %d %d %d %d -> %d have %ld)\n",
1733 		  w0, h0, format, blevel, nlevels, word3, mipmap_size, radeon_bo_size(texture));*/
1734 	}
1735 	return 0;
1736 }
1737 
1738 static bool r600_is_safe_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
1739 {
1740 	u32 m, i;
1741 
1742 	i = (reg >> 7);
1743 	if (i >= DRM_ARRAY_SIZE(r600_reg_safe_bm)) {
1744 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1745 		return false;
1746 	}
1747 	m = 1 << ((reg >> 2) & 31);
1748 	if (!(r600_reg_safe_bm[i] & m))
1749 		return true;
1750 	dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
1751 	return false;
1752 }
1753 
1754 static int r600_packet3_check(struct radeon_cs_parser *p,
1755 				struct radeon_cs_packet *pkt)
1756 {
1757 	struct radeon_cs_reloc *reloc;
1758 	struct r600_cs_track *track;
1759 	volatile u32 *ib;
1760 	unsigned idx;
1761 	unsigned i;
1762 	unsigned start_reg, end_reg, reg;
1763 	int r;
1764 	u32 idx_value;
1765 
1766 	track = (struct r600_cs_track *)p->track;
1767 	ib = p->ib.ptr;
1768 	idx = pkt->idx + 1;
1769 	idx_value = radeon_get_ib_value(p, idx);
1770 
1771 	switch (pkt->opcode) {
1772 	case PACKET3_SET_PREDICATION:
1773 	{
1774 		int pred_op;
1775 		int tmp;
1776 		uint64_t offset;
1777 
1778 		if (pkt->count != 1) {
1779 			DRM_ERROR("bad SET PREDICATION\n");
1780 			return -EINVAL;
1781 		}
1782 
1783 		tmp = radeon_get_ib_value(p, idx + 1);
1784 		pred_op = (tmp >> 16) & 0x7;
1785 
1786 		/* for the clear predicate operation */
1787 		if (pred_op == 0)
1788 			return 0;
1789 
1790 		if (pred_op > 2) {
1791 			DRM_ERROR("bad SET PREDICATION operation %d\n", pred_op);
1792 			return -EINVAL;
1793 		}
1794 
1795 		r = r600_cs_packet_next_reloc(p, &reloc);
1796 		if (r) {
1797 			DRM_ERROR("bad SET PREDICATION\n");
1798 			return -EINVAL;
1799 		}
1800 
1801 		offset = reloc->lobj.gpu_offset +
1802 		         (idx_value & 0xfffffff0) +
1803 		         ((u64)(tmp & 0xff) << 32);
1804 
1805 		ib[idx + 0] = offset;
1806 		ib[idx + 1] = (tmp & 0xffffff00) | (upper_32_bits(offset) & 0xff);
1807 	}
1808 	break;
1809 
1810 	case PACKET3_START_3D_CMDBUF:
1811 		if (p->family >= CHIP_RV770 || pkt->count) {
1812 			DRM_ERROR("bad START_3D\n");
1813 			return -EINVAL;
1814 		}
1815 		break;
1816 	case PACKET3_CONTEXT_CONTROL:
1817 		if (pkt->count != 1) {
1818 			DRM_ERROR("bad CONTEXT_CONTROL\n");
1819 			return -EINVAL;
1820 		}
1821 		break;
1822 	case PACKET3_INDEX_TYPE:
1823 	case PACKET3_NUM_INSTANCES:
1824 		if (pkt->count) {
1825 			DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES\n");
1826 			return -EINVAL;
1827 		}
1828 		break;
1829 	case PACKET3_DRAW_INDEX:
1830 	{
1831 		uint64_t offset;
1832 		if (pkt->count != 3) {
1833 			DRM_ERROR("bad DRAW_INDEX\n");
1834 			return -EINVAL;
1835 		}
1836 		r = r600_cs_packet_next_reloc(p, &reloc);
1837 		if (r) {
1838 			DRM_ERROR("bad DRAW_INDEX\n");
1839 			return -EINVAL;
1840 		}
1841 
1842 		offset = reloc->lobj.gpu_offset +
1843 		         idx_value +
1844 		         ((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
1845 
1846 		ib[idx+0] = offset;
1847 		ib[idx+1] = upper_32_bits(offset) & 0xff;
1848 
1849 		r = r600_cs_track_check(p);
1850 		if (r) {
1851 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1852 			return r;
1853 		}
1854 		break;
1855 	}
1856 	case PACKET3_DRAW_INDEX_AUTO:
1857 		if (pkt->count != 1) {
1858 			DRM_ERROR("bad DRAW_INDEX_AUTO\n");
1859 			return -EINVAL;
1860 		}
1861 		r = r600_cs_track_check(p);
1862 		if (r) {
1863 			dev_warn(p->dev, "%s:%d invalid cmd stream %d\n", __func__, __LINE__, idx);
1864 			return r;
1865 		}
1866 		break;
1867 	case PACKET3_DRAW_INDEX_IMMD_BE:
1868 	case PACKET3_DRAW_INDEX_IMMD:
1869 		if (pkt->count < 2) {
1870 			DRM_ERROR("bad DRAW_INDEX_IMMD\n");
1871 			return -EINVAL;
1872 		}
1873 		r = r600_cs_track_check(p);
1874 		if (r) {
1875 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
1876 			return r;
1877 		}
1878 		break;
1879 	case PACKET3_WAIT_REG_MEM:
1880 		if (pkt->count != 5) {
1881 			DRM_ERROR("bad WAIT_REG_MEM\n");
1882 			return -EINVAL;
1883 		}
1884 		/* bit 4 is reg (0) or mem (1) */
1885 		if (idx_value & 0x10) {
1886 			uint64_t offset;
1887 
1888 			r = r600_cs_packet_next_reloc(p, &reloc);
1889 			if (r) {
1890 				DRM_ERROR("bad WAIT_REG_MEM\n");
1891 				return -EINVAL;
1892 			}
1893 
1894 			offset = reloc->lobj.gpu_offset +
1895 			         (radeon_get_ib_value(p, idx+1) & 0xfffffff0) +
1896 			         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
1897 
1898 			ib[idx+1] = (ib[idx+1] & 0x3) | (offset & 0xfffffff0);
1899 			ib[idx+2] = upper_32_bits(offset) & 0xff;
1900 		}
1901 		break;
1902 	case PACKET3_CP_DMA:
1903 	{
1904 		u32 command, size;
1905 		u64 offset, tmp;
1906 		if (pkt->count != 4) {
1907 			DRM_ERROR("bad CP DMA\n");
1908 			return -EINVAL;
1909 		}
1910 		command = radeon_get_ib_value(p, idx+4);
1911 		size = command & 0x1fffff;
1912 		if (command & PACKET3_CP_DMA_CMD_SAS) {
1913 			/* src address space is register */
1914 			DRM_ERROR("CP DMA SAS not supported\n");
1915 			return -EINVAL;
1916 		} else {
1917 			if (command & PACKET3_CP_DMA_CMD_SAIC) {
1918 				DRM_ERROR("CP DMA SAIC only supported for registers\n");
1919 				return -EINVAL;
1920 			}
1921 			/* src address space is memory */
1922 			r = r600_cs_packet_next_reloc(p, &reloc);
1923 			if (r) {
1924 				DRM_ERROR("bad CP DMA SRC\n");
1925 				return -EINVAL;
1926 			}
1927 
1928 			tmp = radeon_get_ib_value(p, idx) +
1929 				((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
1930 
1931 			offset = reloc->lobj.gpu_offset + tmp;
1932 
1933 			if ((tmp + size) > radeon_bo_size(reloc->robj)) {
1934 				dev_warn(p->dev, "CP DMA src buffer too small (%ju %lu)\n",
1935 					 (uintmax_t)tmp + size, radeon_bo_size(reloc->robj));
1936 				return -EINVAL;
1937 			}
1938 
1939 			ib[idx] = offset;
1940 			ib[idx+1] = (ib[idx+1] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
1941 		}
1942 		if (command & PACKET3_CP_DMA_CMD_DAS) {
1943 			/* dst address space is register */
1944 			DRM_ERROR("CP DMA DAS not supported\n");
1945 			return -EINVAL;
1946 		} else {
1947 			/* dst address space is memory */
1948 			if (command & PACKET3_CP_DMA_CMD_DAIC) {
1949 				DRM_ERROR("CP DMA DAIC only supported for registers\n");
1950 				return -EINVAL;
1951 			}
1952 			r = r600_cs_packet_next_reloc(p, &reloc);
1953 			if (r) {
1954 				DRM_ERROR("bad CP DMA DST\n");
1955 				return -EINVAL;
1956 			}
1957 
1958 			tmp = radeon_get_ib_value(p, idx+2) +
1959 				((u64)(radeon_get_ib_value(p, idx+3) & 0xff) << 32);
1960 
1961 			offset = reloc->lobj.gpu_offset + tmp;
1962 
1963 			if ((tmp + size) > radeon_bo_size(reloc->robj)) {
1964 				dev_warn(p->dev, "CP DMA dst buffer too small (%ju %lu)\n",
1965 					 (uintmax_t)tmp + size, radeon_bo_size(reloc->robj));
1966 				return -EINVAL;
1967 			}
1968 
1969 			ib[idx+2] = offset;
1970 			ib[idx+3] = upper_32_bits(offset) & 0xff;
1971 		}
1972 		break;
1973 	}
1974 	case PACKET3_SURFACE_SYNC:
1975 		if (pkt->count != 3) {
1976 			DRM_ERROR("bad SURFACE_SYNC\n");
1977 			return -EINVAL;
1978 		}
1979 		/* 0xffffffff/0x0 is flush all cache flag */
1980 		if (radeon_get_ib_value(p, idx + 1) != 0xffffffff ||
1981 		    radeon_get_ib_value(p, idx + 2) != 0) {
1982 			r = r600_cs_packet_next_reloc(p, &reloc);
1983 			if (r) {
1984 				DRM_ERROR("bad SURFACE_SYNC\n");
1985 				return -EINVAL;
1986 			}
1987 			ib[idx+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
1988 		}
1989 		break;
1990 	case PACKET3_EVENT_WRITE:
1991 		if (pkt->count != 2 && pkt->count != 0) {
1992 			DRM_ERROR("bad EVENT_WRITE\n");
1993 			return -EINVAL;
1994 		}
1995 		if (pkt->count) {
1996 			uint64_t offset;
1997 
1998 			r = r600_cs_packet_next_reloc(p, &reloc);
1999 			if (r) {
2000 				DRM_ERROR("bad EVENT_WRITE\n");
2001 				return -EINVAL;
2002 			}
2003 			offset = reloc->lobj.gpu_offset +
2004 			         (radeon_get_ib_value(p, idx+1) & 0xfffffff8) +
2005 			         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
2006 
2007 			ib[idx+1] = offset & 0xfffffff8;
2008 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2009 		}
2010 		break;
2011 	case PACKET3_EVENT_WRITE_EOP:
2012 	{
2013 		uint64_t offset;
2014 
2015 		if (pkt->count != 4) {
2016 			DRM_ERROR("bad EVENT_WRITE_EOP\n");
2017 			return -EINVAL;
2018 		}
2019 		r = r600_cs_packet_next_reloc(p, &reloc);
2020 		if (r) {
2021 			DRM_ERROR("bad EVENT_WRITE\n");
2022 			return -EINVAL;
2023 		}
2024 
2025 		offset = reloc->lobj.gpu_offset +
2026 		         (radeon_get_ib_value(p, idx+1) & 0xfffffffc) +
2027 		         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
2028 
2029 		ib[idx+1] = offset & 0xfffffffc;
2030 		ib[idx+2] = (ib[idx+2] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
2031 		break;
2032 	}
2033 	case PACKET3_SET_CONFIG_REG:
2034 		start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_OFFSET;
2035 		end_reg = 4 * pkt->count + start_reg - 4;
2036 		if ((start_reg < PACKET3_SET_CONFIG_REG_OFFSET) ||
2037 		    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
2038 		    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
2039 			DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
2040 			return -EINVAL;
2041 		}
2042 		for (i = 0; i < pkt->count; i++) {
2043 			reg = start_reg + (4 * i);
2044 			r = r600_cs_check_reg(p, reg, idx+1+i);
2045 			if (r)
2046 				return r;
2047 		}
2048 		break;
2049 	case PACKET3_SET_CONTEXT_REG:
2050 		start_reg = (idx_value << 2) + PACKET3_SET_CONTEXT_REG_OFFSET;
2051 		end_reg = 4 * pkt->count + start_reg - 4;
2052 		if ((start_reg < PACKET3_SET_CONTEXT_REG_OFFSET) ||
2053 		    (start_reg >= PACKET3_SET_CONTEXT_REG_END) ||
2054 		    (end_reg >= PACKET3_SET_CONTEXT_REG_END)) {
2055 			DRM_ERROR("bad PACKET3_SET_CONTEXT_REG\n");
2056 			return -EINVAL;
2057 		}
2058 		for (i = 0; i < pkt->count; i++) {
2059 			reg = start_reg + (4 * i);
2060 			r = r600_cs_check_reg(p, reg, idx+1+i);
2061 			if (r)
2062 				return r;
2063 		}
2064 		break;
2065 	case PACKET3_SET_RESOURCE:
2066 		if (pkt->count % 7) {
2067 			DRM_ERROR("bad SET_RESOURCE\n");
2068 			return -EINVAL;
2069 		}
2070 		start_reg = (idx_value << 2) + PACKET3_SET_RESOURCE_OFFSET;
2071 		end_reg = 4 * pkt->count + start_reg - 4;
2072 		if ((start_reg < PACKET3_SET_RESOURCE_OFFSET) ||
2073 		    (start_reg >= PACKET3_SET_RESOURCE_END) ||
2074 		    (end_reg >= PACKET3_SET_RESOURCE_END)) {
2075 			DRM_ERROR("bad SET_RESOURCE\n");
2076 			return -EINVAL;
2077 		}
2078 		for (i = 0; i < (pkt->count / 7); i++) {
2079 			struct radeon_bo *texture, *mipmap;
2080 			u32 size, offset, base_offset, mip_offset;
2081 
2082 			switch (G__SQ_VTX_CONSTANT_TYPE(radeon_get_ib_value(p, idx+(i*7)+6+1))) {
2083 			case SQ_TEX_VTX_VALID_TEXTURE:
2084 				/* tex base */
2085 				r = r600_cs_packet_next_reloc(p, &reloc);
2086 				if (r) {
2087 					DRM_ERROR("bad SET_RESOURCE\n");
2088 					return -EINVAL;
2089 				}
2090 				base_offset = (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
2091 				if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
2092 					if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
2093 						ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
2094 					else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
2095 						ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
2096 				}
2097 				texture = reloc->robj;
2098 				/* tex mip base */
2099 				r = r600_cs_packet_next_reloc(p, &reloc);
2100 				if (r) {
2101 					DRM_ERROR("bad SET_RESOURCE\n");
2102 					return -EINVAL;
2103 				}
2104 				mip_offset = (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
2105 				mipmap = reloc->robj;
2106 				r = r600_check_texture_resource(p,  idx+(i*7)+1,
2107 								texture, mipmap,
2108 								base_offset + radeon_get_ib_value(p, idx+1+(i*7)+2),
2109 								mip_offset + radeon_get_ib_value(p, idx+1+(i*7)+3),
2110 								reloc->lobj.tiling_flags);
2111 				if (r)
2112 					return r;
2113 				ib[idx+1+(i*7)+2] += base_offset;
2114 				ib[idx+1+(i*7)+3] += mip_offset;
2115 				break;
2116 			case SQ_TEX_VTX_VALID_BUFFER:
2117 			{
2118 				uint64_t offset64;
2119 				/* vtx base */
2120 				r = r600_cs_packet_next_reloc(p, &reloc);
2121 				if (r) {
2122 					DRM_ERROR("bad SET_RESOURCE\n");
2123 					return -EINVAL;
2124 				}
2125 				offset = radeon_get_ib_value(p, idx+1+(i*7)+0);
2126 				size = radeon_get_ib_value(p, idx+1+(i*7)+1) + 1;
2127 				if (p->rdev && (size + offset) > radeon_bo_size(reloc->robj)) {
2128 					/* force size to size of the buffer */
2129 					dev_warn(p->dev, "vbo resource seems too big (%d) for the bo (%ld)\n",
2130 						 size + offset, radeon_bo_size(reloc->robj));
2131 					ib[idx+1+(i*7)+1] = radeon_bo_size(reloc->robj) - offset;
2132 				}
2133 
2134 				offset64 = reloc->lobj.gpu_offset + offset;
2135 				ib[idx+1+(i*8)+0] = offset64;
2136 				ib[idx+1+(i*8)+2] = (ib[idx+1+(i*8)+2] & 0xffffff00) |
2137 						    (upper_32_bits(offset64) & 0xff);
2138 				break;
2139 			}
2140 			case SQ_TEX_VTX_INVALID_TEXTURE:
2141 			case SQ_TEX_VTX_INVALID_BUFFER:
2142 			default:
2143 				DRM_ERROR("bad SET_RESOURCE\n");
2144 				return -EINVAL;
2145 			}
2146 		}
2147 		break;
2148 	case PACKET3_SET_ALU_CONST:
2149 		if (track->sq_config & DX9_CONSTS) {
2150 			start_reg = (idx_value << 2) + PACKET3_SET_ALU_CONST_OFFSET;
2151 			end_reg = 4 * pkt->count + start_reg - 4;
2152 			if ((start_reg < PACKET3_SET_ALU_CONST_OFFSET) ||
2153 			    (start_reg >= PACKET3_SET_ALU_CONST_END) ||
2154 			    (end_reg >= PACKET3_SET_ALU_CONST_END)) {
2155 				DRM_ERROR("bad SET_ALU_CONST\n");
2156 				return -EINVAL;
2157 			}
2158 		}
2159 		break;
2160 	case PACKET3_SET_BOOL_CONST:
2161 		start_reg = (idx_value << 2) + PACKET3_SET_BOOL_CONST_OFFSET;
2162 		end_reg = 4 * pkt->count + start_reg - 4;
2163 		if ((start_reg < PACKET3_SET_BOOL_CONST_OFFSET) ||
2164 		    (start_reg >= PACKET3_SET_BOOL_CONST_END) ||
2165 		    (end_reg >= PACKET3_SET_BOOL_CONST_END)) {
2166 			DRM_ERROR("bad SET_BOOL_CONST\n");
2167 			return -EINVAL;
2168 		}
2169 		break;
2170 	case PACKET3_SET_LOOP_CONST:
2171 		start_reg = (idx_value << 2) + PACKET3_SET_LOOP_CONST_OFFSET;
2172 		end_reg = 4 * pkt->count + start_reg - 4;
2173 		if ((start_reg < PACKET3_SET_LOOP_CONST_OFFSET) ||
2174 		    (start_reg >= PACKET3_SET_LOOP_CONST_END) ||
2175 		    (end_reg >= PACKET3_SET_LOOP_CONST_END)) {
2176 			DRM_ERROR("bad SET_LOOP_CONST\n");
2177 			return -EINVAL;
2178 		}
2179 		break;
2180 	case PACKET3_SET_CTL_CONST:
2181 		start_reg = (idx_value << 2) + PACKET3_SET_CTL_CONST_OFFSET;
2182 		end_reg = 4 * pkt->count + start_reg - 4;
2183 		if ((start_reg < PACKET3_SET_CTL_CONST_OFFSET) ||
2184 		    (start_reg >= PACKET3_SET_CTL_CONST_END) ||
2185 		    (end_reg >= PACKET3_SET_CTL_CONST_END)) {
2186 			DRM_ERROR("bad SET_CTL_CONST\n");
2187 			return -EINVAL;
2188 		}
2189 		break;
2190 	case PACKET3_SET_SAMPLER:
2191 		if (pkt->count % 3) {
2192 			DRM_ERROR("bad SET_SAMPLER\n");
2193 			return -EINVAL;
2194 		}
2195 		start_reg = (idx_value << 2) + PACKET3_SET_SAMPLER_OFFSET;
2196 		end_reg = 4 * pkt->count + start_reg - 4;
2197 		if ((start_reg < PACKET3_SET_SAMPLER_OFFSET) ||
2198 		    (start_reg >= PACKET3_SET_SAMPLER_END) ||
2199 		    (end_reg >= PACKET3_SET_SAMPLER_END)) {
2200 			DRM_ERROR("bad SET_SAMPLER\n");
2201 			return -EINVAL;
2202 		}
2203 		break;
2204 	case PACKET3_STRMOUT_BASE_UPDATE:
2205 		/* RS780 and RS880 also need this */
2206 		if (p->family < CHIP_RS780) {
2207 			DRM_ERROR("STRMOUT_BASE_UPDATE only supported on 7xx\n");
2208 			return -EINVAL;
2209 		}
2210 		if (pkt->count != 1) {
2211 			DRM_ERROR("bad STRMOUT_BASE_UPDATE packet count\n");
2212 			return -EINVAL;
2213 		}
2214 		if (idx_value > 3) {
2215 			DRM_ERROR("bad STRMOUT_BASE_UPDATE index\n");
2216 			return -EINVAL;
2217 		}
2218 		{
2219 			u64 offset;
2220 
2221 			r = r600_cs_packet_next_reloc(p, &reloc);
2222 			if (r) {
2223 				DRM_ERROR("bad STRMOUT_BASE_UPDATE reloc\n");
2224 				return -EINVAL;
2225 			}
2226 
2227 			if (reloc->robj != track->vgt_strmout_bo[idx_value]) {
2228 				DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo does not match\n");
2229 				return -EINVAL;
2230 			}
2231 
2232 			offset = radeon_get_ib_value(p, idx+1) << 8;
2233 			if (offset != track->vgt_strmout_bo_offset[idx_value]) {
2234 				DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo offset does not match: 0x%jx, 0x%x\n",
2235 					  (uintmax_t)offset, track->vgt_strmout_bo_offset[idx_value]);
2236 				return -EINVAL;
2237 			}
2238 
2239 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2240 				DRM_ERROR("bad STRMOUT_BASE_UPDATE bo too small: 0x%jx, 0x%lx\n",
2241 					  (uintmax_t)offset + 4, radeon_bo_size(reloc->robj));
2242 				return -EINVAL;
2243 			}
2244 			ib[idx+1] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
2245 		}
2246 		break;
2247 	case PACKET3_SURFACE_BASE_UPDATE:
2248 		if (p->family >= CHIP_RV770 || p->family == CHIP_R600) {
2249 			DRM_ERROR("bad SURFACE_BASE_UPDATE\n");
2250 			return -EINVAL;
2251 		}
2252 		if (pkt->count) {
2253 			DRM_ERROR("bad SURFACE_BASE_UPDATE\n");
2254 			return -EINVAL;
2255 		}
2256 		break;
2257 	case PACKET3_STRMOUT_BUFFER_UPDATE:
2258 		if (pkt->count != 4) {
2259 			DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (invalid count)\n");
2260 			return -EINVAL;
2261 		}
2262 		/* Updating memory at DST_ADDRESS. */
2263 		if (idx_value & 0x1) {
2264 			u64 offset;
2265 			r = r600_cs_packet_next_reloc(p, &reloc);
2266 			if (r) {
2267 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (missing dst reloc)\n");
2268 				return -EINVAL;
2269 			}
2270 			offset = radeon_get_ib_value(p, idx+1);
2271 			offset += ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
2272 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2273 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE dst bo too small: 0x%jx, 0x%lx\n",
2274 					  (uintmax_t)offset + 4, radeon_bo_size(reloc->robj));
2275 				return -EINVAL;
2276 			}
2277 			offset += reloc->lobj.gpu_offset;
2278 			ib[idx+1] = offset;
2279 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2280 		}
2281 		/* Reading data from SRC_ADDRESS. */
2282 		if (((idx_value >> 1) & 0x3) == 2) {
2283 			u64 offset;
2284 			r = r600_cs_packet_next_reloc(p, &reloc);
2285 			if (r) {
2286 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (missing src reloc)\n");
2287 				return -EINVAL;
2288 			}
2289 			offset = radeon_get_ib_value(p, idx+3);
2290 			offset += ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2291 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2292 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE src bo too small: 0x%jx, 0x%lx\n",
2293 					  (uintmax_t)offset + 4, radeon_bo_size(reloc->robj));
2294 				return -EINVAL;
2295 			}
2296 			offset += reloc->lobj.gpu_offset;
2297 			ib[idx+3] = offset;
2298 			ib[idx+4] = upper_32_bits(offset) & 0xff;
2299 		}
2300 		break;
2301 	case PACKET3_MEM_WRITE:
2302 	{
2303 		u64 offset;
2304 
2305 		if (pkt->count != 3) {
2306 			DRM_ERROR("bad MEM_WRITE (invalid count)\n");
2307 			return -EINVAL;
2308 		}
2309 		r = r600_cs_packet_next_reloc(p, &reloc);
2310 		if (r) {
2311 			DRM_ERROR("bad MEM_WRITE (missing reloc)\n");
2312 			return -EINVAL;
2313 		}
2314 		offset = radeon_get_ib_value(p, idx+0);
2315 		offset += ((u64)(radeon_get_ib_value(p, idx+1) & 0xff)) << 32UL;
2316 		if (offset & 0x7) {
2317 			DRM_ERROR("bad MEM_WRITE (address not qwords aligned)\n");
2318 			return -EINVAL;
2319 		}
2320 		if ((offset + 8) > radeon_bo_size(reloc->robj)) {
2321 			DRM_ERROR("bad MEM_WRITE bo too small: 0x%jx, 0x%lx\n",
2322 				  (uintmax_t)offset + 8, radeon_bo_size(reloc->robj));
2323 			return -EINVAL;
2324 		}
2325 		offset += reloc->lobj.gpu_offset;
2326 		ib[idx+0] = offset;
2327 		ib[idx+1] = upper_32_bits(offset) & 0xff;
2328 		break;
2329 	}
2330 	case PACKET3_COPY_DW:
2331 		if (pkt->count != 4) {
2332 			DRM_ERROR("bad COPY_DW (invalid count)\n");
2333 			return -EINVAL;
2334 		}
2335 		if (idx_value & 0x1) {
2336 			u64 offset;
2337 			/* SRC is memory. */
2338 			r = r600_cs_packet_next_reloc(p, &reloc);
2339 			if (r) {
2340 				DRM_ERROR("bad COPY_DW (missing src reloc)\n");
2341 				return -EINVAL;
2342 			}
2343 			offset = radeon_get_ib_value(p, idx+1);
2344 			offset += ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
2345 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2346 				DRM_ERROR("bad COPY_DW src bo too small: 0x%jx, 0x%lx\n",
2347 					  (uintmax_t)offset + 4, radeon_bo_size(reloc->robj));
2348 				return -EINVAL;
2349 			}
2350 			offset += reloc->lobj.gpu_offset;
2351 			ib[idx+1] = offset;
2352 			ib[idx+2] = upper_32_bits(offset) & 0xff;
2353 		} else {
2354 			/* SRC is a reg. */
2355 			reg = radeon_get_ib_value(p, idx+1) << 2;
2356 			if (!r600_is_safe_reg(p, reg, idx+1))
2357 				return -EINVAL;
2358 		}
2359 		if (idx_value & 0x2) {
2360 			u64 offset;
2361 			/* DST is memory. */
2362 			r = r600_cs_packet_next_reloc(p, &reloc);
2363 			if (r) {
2364 				DRM_ERROR("bad COPY_DW (missing dst reloc)\n");
2365 				return -EINVAL;
2366 			}
2367 			offset = radeon_get_ib_value(p, idx+3);
2368 			offset += ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2369 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
2370 				DRM_ERROR("bad COPY_DW dst bo too small: 0x%jx, 0x%lx\n",
2371 					  (uintmax_t)offset + 4, radeon_bo_size(reloc->robj));
2372 				return -EINVAL;
2373 			}
2374 			offset += reloc->lobj.gpu_offset;
2375 			ib[idx+3] = offset;
2376 			ib[idx+4] = upper_32_bits(offset) & 0xff;
2377 		} else {
2378 			/* DST is a reg. */
2379 			reg = radeon_get_ib_value(p, idx+3) << 2;
2380 			if (!r600_is_safe_reg(p, reg, idx+3))
2381 				return -EINVAL;
2382 		}
2383 		break;
2384 	case PACKET3_NOP:
2385 		break;
2386 	default:
2387 		DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
2388 		return -EINVAL;
2389 	}
2390 	return 0;
2391 }
2392 
2393 int r600_cs_parse(struct radeon_cs_parser *p)
2394 {
2395 	struct radeon_cs_packet pkt;
2396 	struct r600_cs_track *track;
2397 	int r;
2398 
2399 	if (p->track == NULL) {
2400 		/* initialize tracker, we are in kms */
2401 		track = kmalloc(sizeof(*track), M_DRM,
2402 				M_ZERO | M_WAITOK);
2403 		if (track == NULL)
2404 			return -ENOMEM;
2405 		r600_cs_track_init(track);
2406 		if (p->rdev->family < CHIP_RV770) {
2407 			track->npipes = p->rdev->config.r600.tiling_npipes;
2408 			track->nbanks = p->rdev->config.r600.tiling_nbanks;
2409 			track->group_size = p->rdev->config.r600.tiling_group_size;
2410 		} else if (p->rdev->family <= CHIP_RV740) {
2411 			track->npipes = p->rdev->config.rv770.tiling_npipes;
2412 			track->nbanks = p->rdev->config.rv770.tiling_nbanks;
2413 			track->group_size = p->rdev->config.rv770.tiling_group_size;
2414 		}
2415 		p->track = track;
2416 	}
2417 	do {
2418 		r = r600_cs_packet_parse(p, &pkt, p->idx);
2419 		if (r) {
2420 			drm_free(p->track, M_DRM);
2421 			p->track = NULL;
2422 			return r;
2423 		}
2424 		p->idx += pkt.count + 2;
2425 		switch (pkt.type) {
2426 		case PACKET_TYPE0:
2427 			r = r600_cs_parse_packet0(p, &pkt);
2428 			break;
2429 		case PACKET_TYPE2:
2430 			break;
2431 		case PACKET_TYPE3:
2432 			r = r600_packet3_check(p, &pkt);
2433 			break;
2434 		default:
2435 			DRM_ERROR("Unknown packet type %d !\n", pkt.type);
2436 			drm_free(p->track, M_DRM);
2437 			p->track = NULL;
2438 			return -EINVAL;
2439 		}
2440 		if (r) {
2441 			drm_free(p->track, M_DRM);
2442 			p->track = NULL;
2443 			return r;
2444 		}
2445 	} while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
2446 #if 0
2447 	for (r = 0; r < p->ib.length_dw; r++) {
2448 		DRM_INFO("%05d  0x%08X\n", r, p->ib.ptr[r]);
2449 		DRM_MDELAY(1);
2450 	}
2451 #endif
2452 	drm_free(p->track, M_DRM);
2453 	p->track = NULL;
2454 	return 0;
2455 }
2456 
2457 static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p)
2458 {
2459 	if (p->chunk_relocs_idx == -1) {
2460 		return 0;
2461 	}
2462 	p->relocs = kmalloc(sizeof(struct radeon_cs_reloc), M_DRM,
2463 			    M_ZERO | M_WAITOK);
2464 	if (p->relocs == NULL) {
2465 		return -ENOMEM;
2466 	}
2467 	return 0;
2468 }
2469 
2470 /**
2471  * cs_parser_fini() - clean parser states
2472  * @parser:	parser structure holding parsing context.
2473  * @error:	error number
2474  *
2475  * If error is set than unvalidate buffer, otherwise just free memory
2476  * used by parsing context.
2477  **/
2478 static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error)
2479 {
2480 	unsigned i;
2481 
2482 	drm_free(parser->relocs, M_DRM);
2483 	for (i = 0; i < parser->nchunks; i++) {
2484 		drm_free(parser->chunks[i].kdata, M_DRM);
2485 		if (parser->rdev && (parser->rdev->flags & RADEON_IS_AGP)) {
2486 			drm_free(parser->chunks[i].kpage[0], M_DRM);
2487 			drm_free(parser->chunks[i].kpage[1], M_DRM);
2488 		}
2489 	}
2490 	drm_free(parser->chunks, M_DRM);
2491 	drm_free(parser->chunks_array, M_DRM);
2492 	drm_free(parser->track, M_DRM);
2493 }
2494 
2495 int r600_cs_legacy(struct drm_device *dev, void *data, struct drm_file *filp,
2496 			unsigned family, u32 *ib, int *l)
2497 {
2498 	struct radeon_cs_parser parser;
2499 	struct radeon_cs_chunk *ib_chunk;
2500 	struct r600_cs_track *track;
2501 	int r;
2502 
2503 	/* initialize tracker */
2504 	track = kmalloc(sizeof(*track), M_DRM, M_ZERO | M_WAITOK);
2505 	if (track == NULL)
2506 		return -ENOMEM;
2507 	r600_cs_track_init(track);
2508 	r600_cs_legacy_get_tiling_conf(dev, &track->npipes, &track->nbanks, &track->group_size);
2509 	/* initialize parser */
2510 	memset(&parser, 0, sizeof(struct radeon_cs_parser));
2511 	parser.filp = filp;
2512 	parser.dev = dev->dev;
2513 	parser.rdev = NULL;
2514 	parser.family = family;
2515 	parser.track = track;
2516 	parser.ib.ptr = ib;
2517 	r = radeon_cs_parser_init(&parser, data);
2518 	if (r) {
2519 		DRM_ERROR("Failed to initialize parser !\n");
2520 		r600_cs_parser_fini(&parser, r);
2521 		return r;
2522 	}
2523 	r = r600_cs_parser_relocs_legacy(&parser);
2524 	if (r) {
2525 		DRM_ERROR("Failed to parse relocation !\n");
2526 		r600_cs_parser_fini(&parser, r);
2527 		return r;
2528 	}
2529 	/* Copy the packet into the IB, the parser will read from the
2530 	 * input memory (cached) and write to the IB (which can be
2531 	 * uncached). */
2532 	ib_chunk = &parser.chunks[parser.chunk_ib_idx];
2533 	parser.ib.length_dw = ib_chunk->length_dw;
2534 	*l = parser.ib.length_dw;
2535 	r = r600_cs_parse(&parser);
2536 	if (r) {
2537 		DRM_ERROR("Invalid command stream !\n");
2538 		r600_cs_parser_fini(&parser, r);
2539 		return r;
2540 	}
2541 	r = radeon_cs_finish_pages(&parser);
2542 	if (r) {
2543 		DRM_ERROR("Invalid command stream !\n");
2544 		r600_cs_parser_fini(&parser, r);
2545 		return r;
2546 	}
2547 	r600_cs_parser_fini(&parser, r);
2548 	return r;
2549 }
2550 
2551 void r600_cs_legacy_init(void)
2552 {
2553 	r600_cs_packet_next_reloc = &r600_cs_packet_next_reloc_nomm;
2554 }
2555 
2556 /*
2557  *  DMA
2558  */
2559 /**
2560  * r600_dma_cs_next_reloc() - parse next reloc
2561  * @p:		parser structure holding parsing context.
2562  * @cs_reloc:		reloc informations
2563  *
2564  * Return the next reloc, do bo validation and compute
2565  * GPU offset using the provided start.
2566  **/
2567 int r600_dma_cs_next_reloc(struct radeon_cs_parser *p,
2568 			   struct radeon_cs_reloc **cs_reloc)
2569 {
2570 	struct radeon_cs_chunk *relocs_chunk;
2571 	unsigned idx;
2572 
2573 	*cs_reloc = NULL;
2574 	if (p->chunk_relocs_idx == -1) {
2575 		DRM_ERROR("No relocation chunk !\n");
2576 		return -EINVAL;
2577 	}
2578 	relocs_chunk = &p->chunks[p->chunk_relocs_idx];
2579 	idx = p->dma_reloc_idx;
2580 	if (idx >= p->nrelocs) {
2581 		DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
2582 			  idx, p->nrelocs);
2583 		return -EINVAL;
2584 	}
2585 	*cs_reloc = p->relocs_ptr[idx];
2586 	p->dma_reloc_idx++;
2587 	return 0;
2588 }
2589 
2590 #define GET_DMA_CMD(h) (((h) & 0xf0000000) >> 28)
2591 #define GET_DMA_COUNT(h) ((h) & 0x0000ffff)
2592 #define GET_DMA_T(h) (((h) & 0x00800000) >> 23)
2593 
2594 /**
2595  * r600_dma_cs_parse() - parse the DMA IB
2596  * @p:		parser structure holding parsing context.
2597  *
2598  * Parses the DMA IB from the CS ioctl and updates
2599  * the GPU addresses based on the reloc information and
2600  * checks for errors. (R6xx-R7xx)
2601  * Returns 0 for success and an error on failure.
2602  **/
2603 int r600_dma_cs_parse(struct radeon_cs_parser *p)
2604 {
2605 	struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
2606 	struct radeon_cs_reloc *src_reloc, *dst_reloc;
2607 	u32 header, cmd, count, tiled;
2608 	volatile u32 *ib = p->ib.ptr;
2609 	u32 idx, idx_value;
2610 	u64 src_offset, dst_offset;
2611 	int r;
2612 
2613 	do {
2614 		if (p->idx >= ib_chunk->length_dw) {
2615 			DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
2616 				  p->idx, ib_chunk->length_dw);
2617 			return -EINVAL;
2618 		}
2619 		idx = p->idx;
2620 		header = radeon_get_ib_value(p, idx);
2621 		cmd = GET_DMA_CMD(header);
2622 		count = GET_DMA_COUNT(header);
2623 		tiled = GET_DMA_T(header);
2624 
2625 		switch (cmd) {
2626 		case DMA_PACKET_WRITE:
2627 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
2628 			if (r) {
2629 				DRM_ERROR("bad DMA_PACKET_WRITE\n");
2630 				return -EINVAL;
2631 			}
2632 			if (tiled) {
2633 				dst_offset = radeon_get_ib_value(p, idx+1);
2634 				dst_offset <<= 8;
2635 
2636 				ib[idx+1] += (u32)(dst_reloc->lobj.gpu_offset >> 8);
2637 				p->idx += count + 5;
2638 			} else {
2639 				dst_offset = radeon_get_ib_value(p, idx+1);
2640 				dst_offset |= ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
2641 
2642 				ib[idx+1] += (u32)(dst_reloc->lobj.gpu_offset & 0xfffffffc);
2643 				ib[idx+2] += upper_32_bits(dst_reloc->lobj.gpu_offset) & 0xff;
2644 				p->idx += count + 3;
2645 			}
2646 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2647 				dev_warn(p->dev, "DMA write buffer too small (%ju %lu)\n",
2648 					 (uintmax_t)dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2649 				return -EINVAL;
2650 			}
2651 			break;
2652 		case DMA_PACKET_COPY:
2653 			r = r600_dma_cs_next_reloc(p, &src_reloc);
2654 			if (r) {
2655 				DRM_ERROR("bad DMA_PACKET_COPY\n");
2656 				return -EINVAL;
2657 			}
2658 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
2659 			if (r) {
2660 				DRM_ERROR("bad DMA_PACKET_COPY\n");
2661 				return -EINVAL;
2662 			}
2663 			if (tiled) {
2664 				idx_value = radeon_get_ib_value(p, idx + 2);
2665 				/* detile bit */
2666 				if (idx_value & (1 << 31)) {
2667 					/* tiled src, linear dst */
2668 					src_offset = radeon_get_ib_value(p, idx+1);
2669 					src_offset <<= 8;
2670 					ib[idx+1] += (u32)(src_reloc->lobj.gpu_offset >> 8);
2671 
2672 					dst_offset = radeon_get_ib_value(p, idx+5);
2673 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+6) & 0xff)) << 32;
2674 					ib[idx+5] += (u32)(dst_reloc->lobj.gpu_offset & 0xfffffffc);
2675 					ib[idx+6] += upper_32_bits(dst_reloc->lobj.gpu_offset) & 0xff;
2676 				} else {
2677 					/* linear src, tiled dst */
2678 					src_offset = radeon_get_ib_value(p, idx+5);
2679 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+6) & 0xff)) << 32;
2680 					ib[idx+5] += (u32)(src_reloc->lobj.gpu_offset & 0xfffffffc);
2681 					ib[idx+6] += upper_32_bits(src_reloc->lobj.gpu_offset) & 0xff;
2682 
2683 					dst_offset = radeon_get_ib_value(p, idx+1);
2684 					dst_offset <<= 8;
2685 					ib[idx+1] += (u32)(dst_reloc->lobj.gpu_offset >> 8);
2686 				}
2687 				p->idx += 7;
2688 			} else {
2689 				if (p->family >= CHIP_RV770) {
2690 					src_offset = radeon_get_ib_value(p, idx+2);
2691 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
2692 					dst_offset = radeon_get_ib_value(p, idx+1);
2693 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff)) << 32;
2694 
2695 					ib[idx+1] += (u32)(dst_reloc->lobj.gpu_offset & 0xfffffffc);
2696 					ib[idx+2] += (u32)(src_reloc->lobj.gpu_offset & 0xfffffffc);
2697 					ib[idx+3] += upper_32_bits(dst_reloc->lobj.gpu_offset) & 0xff;
2698 					ib[idx+4] += upper_32_bits(src_reloc->lobj.gpu_offset) & 0xff;
2699 					p->idx += 5;
2700 				} else {
2701 					src_offset = radeon_get_ib_value(p, idx+2);
2702 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff)) << 32;
2703 					dst_offset = radeon_get_ib_value(p, idx+1);
2704 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff0000)) << 16;
2705 
2706 					ib[idx+1] += (u32)(dst_reloc->lobj.gpu_offset & 0xfffffffc);
2707 					ib[idx+2] += (u32)(src_reloc->lobj.gpu_offset & 0xfffffffc);
2708 					ib[idx+3] += upper_32_bits(src_reloc->lobj.gpu_offset) & 0xff;
2709 					ib[idx+3] += (upper_32_bits(dst_reloc->lobj.gpu_offset) & 0xff) << 16;
2710 					p->idx += 4;
2711 				}
2712 			}
2713 			if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
2714 				dev_warn(p->dev, "DMA copy src buffer too small (%ju %lu)\n",
2715 					 (uintmax_t)src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
2716 				return -EINVAL;
2717 			}
2718 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2719 				dev_warn(p->dev, "DMA write dst buffer too small (%ju %lu)\n",
2720 					 (uintmax_t)dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2721 				return -EINVAL;
2722 			}
2723 			break;
2724 		case DMA_PACKET_CONSTANT_FILL:
2725 			if (p->family < CHIP_RV770) {
2726 				DRM_ERROR("Constant Fill is 7xx only !\n");
2727 				return -EINVAL;
2728 			}
2729 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
2730 			if (r) {
2731 				DRM_ERROR("bad DMA_PACKET_WRITE\n");
2732 				return -EINVAL;
2733 			}
2734 			dst_offset = radeon_get_ib_value(p, idx+1);
2735 			dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0x00ff0000)) << 16;
2736 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
2737 				dev_warn(p->dev, "DMA constant fill buffer too small (%ju %lu)\n",
2738 					 (uintmax_t)dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
2739 				return -EINVAL;
2740 			}
2741 			ib[idx+1] += (u32)(dst_reloc->lobj.gpu_offset & 0xfffffffc);
2742 			ib[idx+3] += (upper_32_bits(dst_reloc->lobj.gpu_offset) << 16) & 0x00ff0000;
2743 			p->idx += 4;
2744 			break;
2745 		case DMA_PACKET_NOP:
2746 			p->idx += 1;
2747 			break;
2748 		default:
2749 			DRM_ERROR("Unknown packet type %d at %d !\n", cmd, idx);
2750 			return -EINVAL;
2751 		}
2752 	} while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
2753 #if 0
2754 	for (r = 0; r < p->ib->length_dw; r++) {
2755 		DRM_INFO("%05d  0x%08X\n", r, p->ib.ptr[r]);
2756 		DRM_MDELAY(1);
2757 	}
2758 #endif
2759 	return 0;
2760 }
2761