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radeon_r600_cs.c revision 1.1.2.2
      1 /*	$NetBSD: radeon_r600_cs.c,v 1.1.2.2 2018/09/06 06:56:33 pgoyette Exp $	*/
      2 
      3 /*
      4  * Copyright 2008 Advanced Micro Devices, Inc.
      5  * Copyright 2008 Red Hat Inc.
      6  * Copyright 2009 Jerome Glisse.
      7  *
      8  * Permission is hereby granted, free of charge, to any person obtaining a
      9  * copy of this software and associated documentation files (the "Software"),
     10  * to deal in the Software without restriction, including without limitation
     11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     12  * and/or sell copies of the Software, and to permit persons to whom the
     13  * Software is furnished to do so, subject to the following conditions:
     14  *
     15  * The above copyright notice and this permission notice shall be included in
     16  * all copies or substantial portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     21  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     24  * OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  * Authors: Dave Airlie
     27  *          Alex Deucher
     28  *          Jerome Glisse
     29  */
     30 #include <sys/cdefs.h>
     31 __KERNEL_RCSID(0, "$NetBSD: radeon_r600_cs.c,v 1.1.2.2 2018/09/06 06:56:33 pgoyette Exp $");
     32 
     33 #include <linux/kernel.h>
     34 #include <drm/drmP.h>
     35 #include "radeon.h"
     36 #include "r600d.h"
     37 #include "r600_reg_safe.h"
     38 
     39 static int r600_nomm;
     40 extern void r600_cs_legacy_get_tiling_conf(struct drm_device *dev, u32 *npipes, u32 *nbanks, u32 *group_size);
     41 
     42 
     43 struct r600_cs_track {
     44 	/* configuration we miror so that we use same code btw kms/ums */
     45 	u32			group_size;
     46 	u32			nbanks;
     47 	u32			npipes;
     48 	/* value we track */
     49 	u32			sq_config;
     50 	u32			log_nsamples;
     51 	u32			nsamples;
     52 	u32			cb_color_base_last[8];
     53 	struct radeon_bo	*cb_color_bo[8];
     54 	u64			cb_color_bo_mc[8];
     55 	u64			cb_color_bo_offset[8];
     56 	struct radeon_bo	*cb_color_frag_bo[8];
     57 	u64			cb_color_frag_offset[8];
     58 	struct radeon_bo	*cb_color_tile_bo[8];
     59 	u64			cb_color_tile_offset[8];
     60 	u32			cb_color_mask[8];
     61 	u32			cb_color_info[8];
     62 	u32			cb_color_view[8];
     63 	u32			cb_color_size_idx[8]; /* unused */
     64 	u32			cb_target_mask;
     65 	u32			cb_shader_mask;  /* unused */
     66 	bool			is_resolve;
     67 	u32			cb_color_size[8];
     68 	u32			vgt_strmout_en;
     69 	u32			vgt_strmout_buffer_en;
     70 	struct radeon_bo	*vgt_strmout_bo[4];
     71 	u64			vgt_strmout_bo_mc[4]; /* unused */
     72 	u32			vgt_strmout_bo_offset[4];
     73 	u32			vgt_strmout_size[4];
     74 	u32			db_depth_control;
     75 	u32			db_depth_info;
     76 	u32			db_depth_size_idx;
     77 	u32			db_depth_view;
     78 	u32			db_depth_size;
     79 	u32			db_offset;
     80 	struct radeon_bo	*db_bo;
     81 	u64			db_bo_mc;
     82 	bool			sx_misc_kill_all_prims;
     83 	bool			cb_dirty;
     84 	bool			db_dirty;
     85 	bool			streamout_dirty;
     86 	struct radeon_bo	*htile_bo;
     87 	u64			htile_offset;
     88 	u32			htile_surface;
     89 };
     90 
     91 #define FMT_8_BIT(fmt, vc)   [fmt] = { 1, 1, 1, vc, CHIP_R600 }
     92 #define FMT_16_BIT(fmt, vc)  [fmt] = { 1, 1, 2, vc, CHIP_R600 }
     93 #define FMT_24_BIT(fmt)      [fmt] = { 1, 1, 4,  0, CHIP_R600 }
     94 #define FMT_32_BIT(fmt, vc)  [fmt] = { 1, 1, 4, vc, CHIP_R600 }
     95 #define FMT_48_BIT(fmt)      [fmt] = { 1, 1, 8,  0, CHIP_R600 }
     96 #define FMT_64_BIT(fmt, vc)  [fmt] = { 1, 1, 8, vc, CHIP_R600 }
     97 #define FMT_96_BIT(fmt)      [fmt] = { 1, 1, 12, 0, CHIP_R600 }
     98 #define FMT_128_BIT(fmt, vc) [fmt] = { 1, 1, 16,vc, CHIP_R600 }
     99 
    100 struct gpu_formats {
    101 	unsigned blockwidth;
    102 	unsigned blockheight;
    103 	unsigned blocksize;
    104 	unsigned valid_color;
    105 	enum radeon_family min_family;
    106 };
    107 
    108 static const struct gpu_formats color_formats_table[] = {
    109 	/* 8 bit */
    110 	FMT_8_BIT(V_038004_COLOR_8, 1),
    111 	FMT_8_BIT(V_038004_COLOR_4_4, 1),
    112 	FMT_8_BIT(V_038004_COLOR_3_3_2, 1),
    113 	FMT_8_BIT(V_038004_FMT_1, 0),
    114 
    115 	/* 16-bit */
    116 	FMT_16_BIT(V_038004_COLOR_16, 1),
    117 	FMT_16_BIT(V_038004_COLOR_16_FLOAT, 1),
    118 	FMT_16_BIT(V_038004_COLOR_8_8, 1),
    119 	FMT_16_BIT(V_038004_COLOR_5_6_5, 1),
    120 	FMT_16_BIT(V_038004_COLOR_6_5_5, 1),
    121 	FMT_16_BIT(V_038004_COLOR_1_5_5_5, 1),
    122 	FMT_16_BIT(V_038004_COLOR_4_4_4_4, 1),
    123 	FMT_16_BIT(V_038004_COLOR_5_5_5_1, 1),
    124 
    125 	/* 24-bit */
    126 	FMT_24_BIT(V_038004_FMT_8_8_8),
    127 
    128 	/* 32-bit */
    129 	FMT_32_BIT(V_038004_COLOR_32, 1),
    130 	FMT_32_BIT(V_038004_COLOR_32_FLOAT, 1),
    131 	FMT_32_BIT(V_038004_COLOR_16_16, 1),
    132 	FMT_32_BIT(V_038004_COLOR_16_16_FLOAT, 1),
    133 	FMT_32_BIT(V_038004_COLOR_8_24, 1),
    134 	FMT_32_BIT(V_038004_COLOR_8_24_FLOAT, 1),
    135 	FMT_32_BIT(V_038004_COLOR_24_8, 1),
    136 	FMT_32_BIT(V_038004_COLOR_24_8_FLOAT, 1),
    137 	FMT_32_BIT(V_038004_COLOR_10_11_11, 1),
    138 	FMT_32_BIT(V_038004_COLOR_10_11_11_FLOAT, 1),
    139 	FMT_32_BIT(V_038004_COLOR_11_11_10, 1),
    140 	FMT_32_BIT(V_038004_COLOR_11_11_10_FLOAT, 1),
    141 	FMT_32_BIT(V_038004_COLOR_2_10_10_10, 1),
    142 	FMT_32_BIT(V_038004_COLOR_8_8_8_8, 1),
    143 	FMT_32_BIT(V_038004_COLOR_10_10_10_2, 1),
    144 	FMT_32_BIT(V_038004_FMT_5_9_9_9_SHAREDEXP, 0),
    145 	FMT_32_BIT(V_038004_FMT_32_AS_8, 0),
    146 	FMT_32_BIT(V_038004_FMT_32_AS_8_8, 0),
    147 
    148 	/* 48-bit */
    149 	FMT_48_BIT(V_038004_FMT_16_16_16),
    150 	FMT_48_BIT(V_038004_FMT_16_16_16_FLOAT),
    151 
    152 	/* 64-bit */
    153 	FMT_64_BIT(V_038004_COLOR_X24_8_32_FLOAT, 1),
    154 	FMT_64_BIT(V_038004_COLOR_32_32, 1),
    155 	FMT_64_BIT(V_038004_COLOR_32_32_FLOAT, 1),
    156 	FMT_64_BIT(V_038004_COLOR_16_16_16_16, 1),
    157 	FMT_64_BIT(V_038004_COLOR_16_16_16_16_FLOAT, 1),
    158 
    159 	FMT_96_BIT(V_038004_FMT_32_32_32),
    160 	FMT_96_BIT(V_038004_FMT_32_32_32_FLOAT),
    161 
    162 	/* 128-bit */
    163 	FMT_128_BIT(V_038004_COLOR_32_32_32_32, 1),
    164 	FMT_128_BIT(V_038004_COLOR_32_32_32_32_FLOAT, 1),
    165 
    166 	[V_038004_FMT_GB_GR] = { 2, 1, 4, 0 },
    167 	[V_038004_FMT_BG_RG] = { 2, 1, 4, 0 },
    168 
    169 	/* block compressed formats */
    170 	[V_038004_FMT_BC1] = { 4, 4, 8, 0 },
    171 	[V_038004_FMT_BC2] = { 4, 4, 16, 0 },
    172 	[V_038004_FMT_BC3] = { 4, 4, 16, 0 },
    173 	[V_038004_FMT_BC4] = { 4, 4, 8, 0 },
    174 	[V_038004_FMT_BC5] = { 4, 4, 16, 0},
    175 	[V_038004_FMT_BC6] = { 4, 4, 16, 0, CHIP_CEDAR}, /* Evergreen-only */
    176 	[V_038004_FMT_BC7] = { 4, 4, 16, 0, CHIP_CEDAR}, /* Evergreen-only */
    177 
    178 	/* The other Evergreen formats */
    179 	[V_038004_FMT_32_AS_32_32_32_32] = { 1, 1, 4, 0, CHIP_CEDAR},
    180 };
    181 
    182 bool r600_fmt_is_valid_color(u32 format)
    183 {
    184 	if (format >= ARRAY_SIZE(color_formats_table))
    185 		return false;
    186 
    187 	if (color_formats_table[format].valid_color)
    188 		return true;
    189 
    190 	return false;
    191 }
    192 
    193 bool r600_fmt_is_valid_texture(u32 format, enum radeon_family family)
    194 {
    195 	if (format >= ARRAY_SIZE(color_formats_table))
    196 		return false;
    197 
    198 	if (family < color_formats_table[format].min_family)
    199 		return false;
    200 
    201 	if (color_formats_table[format].blockwidth > 0)
    202 		return true;
    203 
    204 	return false;
    205 }
    206 
    207 int r600_fmt_get_blocksize(u32 format)
    208 {
    209 	if (format >= ARRAY_SIZE(color_formats_table))
    210 		return 0;
    211 
    212 	return color_formats_table[format].blocksize;
    213 }
    214 
    215 int r600_fmt_get_nblocksx(u32 format, u32 w)
    216 {
    217 	unsigned bw;
    218 
    219 	if (format >= ARRAY_SIZE(color_formats_table))
    220 		return 0;
    221 
    222 	bw = color_formats_table[format].blockwidth;
    223 	if (bw == 0)
    224 		return 0;
    225 
    226 	return (w + bw - 1) / bw;
    227 }
    228 
    229 int r600_fmt_get_nblocksy(u32 format, u32 h)
    230 {
    231 	unsigned bh;
    232 
    233 	if (format >= ARRAY_SIZE(color_formats_table))
    234 		return 0;
    235 
    236 	bh = color_formats_table[format].blockheight;
    237 	if (bh == 0)
    238 		return 0;
    239 
    240 	return (h + bh - 1) / bh;
    241 }
    242 
    243 struct array_mode_checker {
    244 	int array_mode;
    245 	u32 group_size;
    246 	u32 nbanks;
    247 	u32 npipes;
    248 	u32 nsamples;
    249 	u32 blocksize;
    250 };
    251 
    252 /* returns alignment in pixels for pitch/height/depth and bytes for base */
    253 static int r600_get_array_mode_alignment(struct array_mode_checker *values,
    254 						u32 *pitch_align,
    255 						u32 *height_align,
    256 						u32 *depth_align,
    257 						u64 *base_align)
    258 {
    259 	u32 tile_width = 8;
    260 	u32 tile_height = 8;
    261 	u32 macro_tile_width = values->nbanks;
    262 	u32 macro_tile_height = values->npipes;
    263 	u32 tile_bytes = tile_width * tile_height * values->blocksize * values->nsamples;
    264 	u32 macro_tile_bytes = macro_tile_width * macro_tile_height * tile_bytes;
    265 
    266 	switch (values->array_mode) {
    267 	case ARRAY_LINEAR_GENERAL:
    268 		/* technically tile_width/_height for pitch/height */
    269 		*pitch_align = 1; /* tile_width */
    270 		*height_align = 1; /* tile_height */
    271 		*depth_align = 1;
    272 		*base_align = 1;
    273 		break;
    274 	case ARRAY_LINEAR_ALIGNED:
    275 		*pitch_align = max((u32)64, (u32)(values->group_size / values->blocksize));
    276 		*height_align = 1;
    277 		*depth_align = 1;
    278 		*base_align = values->group_size;
    279 		break;
    280 	case ARRAY_1D_TILED_THIN1:
    281 		*pitch_align = max((u32)tile_width,
    282 				   (u32)(values->group_size /
    283 					 (tile_height * values->blocksize * values->nsamples)));
    284 		*height_align = tile_height;
    285 		*depth_align = 1;
    286 		*base_align = values->group_size;
    287 		break;
    288 	case ARRAY_2D_TILED_THIN1:
    289 		*pitch_align = max((u32)macro_tile_width * tile_width,
    290 				(u32)((values->group_size * values->nbanks) /
    291 				(values->blocksize * values->nsamples * tile_width)));
    292 		*height_align = macro_tile_height * tile_height;
    293 		*depth_align = 1;
    294 		*base_align = max(macro_tile_bytes,
    295 				  (*pitch_align) * values->blocksize * (*height_align) * values->nsamples);
    296 		break;
    297 	default:
    298 		return -EINVAL;
    299 	}
    300 
    301 	return 0;
    302 }
    303 
    304 static void r600_cs_track_init(struct r600_cs_track *track)
    305 {
    306 	int i;
    307 
    308 	/* assume DX9 mode */
    309 	track->sq_config = DX9_CONSTS;
    310 	for (i = 0; i < 8; i++) {
    311 		track->cb_color_base_last[i] = 0;
    312 		track->cb_color_size[i] = 0;
    313 		track->cb_color_size_idx[i] = 0;
    314 		track->cb_color_info[i] = 0;
    315 		track->cb_color_view[i] = 0xFFFFFFFF;
    316 		track->cb_color_bo[i] = NULL;
    317 		track->cb_color_bo_offset[i] = 0xFFFFFFFF;
    318 		track->cb_color_bo_mc[i] = 0xFFFFFFFF;
    319 		track->cb_color_frag_bo[i] = NULL;
    320 		track->cb_color_frag_offset[i] = 0xFFFFFFFF;
    321 		track->cb_color_tile_bo[i] = NULL;
    322 		track->cb_color_tile_offset[i] = 0xFFFFFFFF;
    323 		track->cb_color_mask[i] = 0xFFFFFFFF;
    324 	}
    325 	track->is_resolve = false;
    326 	track->nsamples = 16;
    327 	track->log_nsamples = 4;
    328 	track->cb_target_mask = 0xFFFFFFFF;
    329 	track->cb_shader_mask = 0xFFFFFFFF;
    330 	track->cb_dirty = true;
    331 	track->db_bo = NULL;
    332 	track->db_bo_mc = 0xFFFFFFFF;
    333 	/* assume the biggest format and that htile is enabled */
    334 	track->db_depth_info = 7 | (1 << 25);
    335 	track->db_depth_view = 0xFFFFC000;
    336 	track->db_depth_size = 0xFFFFFFFF;
    337 	track->db_depth_size_idx = 0;
    338 	track->db_depth_control = 0xFFFFFFFF;
    339 	track->db_dirty = true;
    340 	track->htile_bo = NULL;
    341 	track->htile_offset = 0xFFFFFFFF;
    342 	track->htile_surface = 0;
    343 
    344 	for (i = 0; i < 4; i++) {
    345 		track->vgt_strmout_size[i] = 0;
    346 		track->vgt_strmout_bo[i] = NULL;
    347 		track->vgt_strmout_bo_offset[i] = 0xFFFFFFFF;
    348 		track->vgt_strmout_bo_mc[i] = 0xFFFFFFFF;
    349 	}
    350 	track->streamout_dirty = true;
    351 	track->sx_misc_kill_all_prims = false;
    352 }
    353 
    354 static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
    355 {
    356 	struct r600_cs_track *track = p->track;
    357 	u32 slice_tile_max, size __unused, tmp;
    358 	u32 height, height_align, pitch, pitch_align, depth_align;
    359 	u64 base_offset, base_align;
    360 	struct array_mode_checker array_check;
    361 	volatile u32 *ib = p->ib.ptr;
    362 	unsigned array_mode;
    363 	u32 format;
    364 	/* When resolve is used, the second colorbuffer has always 1 sample. */
    365 	unsigned nsamples = track->is_resolve && i == 1 ? 1 : track->nsamples;
    366 
    367 	size = radeon_bo_size(track->cb_color_bo[i]) - track->cb_color_bo_offset[i];
    368 	format = G_0280A0_FORMAT(track->cb_color_info[i]);
    369 	if (!r600_fmt_is_valid_color(format)) {
    370 		dev_warn(p->dev, "%s:%d cb invalid format %d for %d (0x%08X)\n",
    371 			 __func__, __LINE__, format,
    372 			i, track->cb_color_info[i]);
    373 		return -EINVAL;
    374 	}
    375 	/* pitch in pixels */
    376 	pitch = (G_028060_PITCH_TILE_MAX(track->cb_color_size[i]) + 1) * 8;
    377 	slice_tile_max = G_028060_SLICE_TILE_MAX(track->cb_color_size[i]) + 1;
    378 	slice_tile_max *= 64;
    379 	height = slice_tile_max / pitch;
    380 	if (height > 8192)
    381 		height = 8192;
    382 	array_mode = G_0280A0_ARRAY_MODE(track->cb_color_info[i]);
    383 
    384 	base_offset = track->cb_color_bo_mc[i] + track->cb_color_bo_offset[i];
    385 	array_check.array_mode = array_mode;
    386 	array_check.group_size = track->group_size;
    387 	array_check.nbanks = track->nbanks;
    388 	array_check.npipes = track->npipes;
    389 	array_check.nsamples = nsamples;
    390 	array_check.blocksize = r600_fmt_get_blocksize(format);
    391 	if (r600_get_array_mode_alignment(&array_check,
    392 					  &pitch_align, &height_align, &depth_align, &base_align)) {
    393 		dev_warn(p->dev, "%s invalid tiling %d for %d (0x%08X)\n", __func__,
    394 			 G_0280A0_ARRAY_MODE(track->cb_color_info[i]), i,
    395 			 track->cb_color_info[i]);
    396 		return -EINVAL;
    397 	}
    398 	switch (array_mode) {
    399 	case V_0280A0_ARRAY_LINEAR_GENERAL:
    400 		break;
    401 	case V_0280A0_ARRAY_LINEAR_ALIGNED:
    402 		break;
    403 	case V_0280A0_ARRAY_1D_TILED_THIN1:
    404 		/* avoid breaking userspace */
    405 		if (height > 7)
    406 			height &= ~0x7;
    407 		break;
    408 	case V_0280A0_ARRAY_2D_TILED_THIN1:
    409 		break;
    410 	default:
    411 		dev_warn(p->dev, "%s invalid tiling %d for %d (0x%08X)\n", __func__,
    412 			G_0280A0_ARRAY_MODE(track->cb_color_info[i]), i,
    413 			track->cb_color_info[i]);
    414 		return -EINVAL;
    415 	}
    416 
    417 	if (!IS_ALIGNED(pitch, pitch_align)) {
    418 		dev_warn(p->dev, "%s:%d cb pitch (%d, 0x%x, %d) invalid\n",
    419 			 __func__, __LINE__, pitch, pitch_align, array_mode);
    420 		return -EINVAL;
    421 	}
    422 	if (!IS_ALIGNED(height, height_align)) {
    423 		dev_warn(p->dev, "%s:%d cb height (%d, 0x%x, %d) invalid\n",
    424 			 __func__, __LINE__, height, height_align, array_mode);
    425 		return -EINVAL;
    426 	}
    427 	if (!IS_ALIGNED(base_offset, base_align)) {
    428 		dev_warn(p->dev, "%s offset[%d] 0x%"PRIx64" 0x%"PRIx64", %d not aligned\n", __func__, i,
    429 			 base_offset, base_align, array_mode);
    430 		return -EINVAL;
    431 	}
    432 
    433 	/* check offset */
    434 	tmp = r600_fmt_get_nblocksy(format, height) * r600_fmt_get_nblocksx(format, pitch) *
    435 	      r600_fmt_get_blocksize(format) * nsamples;
    436 	switch (array_mode) {
    437 	default:
    438 	case V_0280A0_ARRAY_LINEAR_GENERAL:
    439 	case V_0280A0_ARRAY_LINEAR_ALIGNED:
    440 		tmp += track->cb_color_view[i] & 0xFF;
    441 		break;
    442 	case V_0280A0_ARRAY_1D_TILED_THIN1:
    443 	case V_0280A0_ARRAY_2D_TILED_THIN1:
    444 		tmp += G_028080_SLICE_MAX(track->cb_color_view[i]) * tmp;
    445 		break;
    446 	}
    447 	if ((tmp + track->cb_color_bo_offset[i]) > radeon_bo_size(track->cb_color_bo[i])) {
    448 		if (array_mode == V_0280A0_ARRAY_LINEAR_GENERAL) {
    449 			/* the initial DDX does bad things with the CB size occasionally */
    450 			/* it rounds up height too far for slice tile max but the BO is smaller */
    451 			/* r600c,g also seem to flush at bad times in some apps resulting in
    452 			 * bogus values here. So for linear just allow anything to avoid breaking
    453 			 * broken userspace.
    454 			 */
    455 		} else {
    456 			dev_warn(p->dev, "%s offset[%d] %d %"PRIu64" %d %lu too big (%d %d) (%d %d %d)\n",
    457 				 __func__, i, array_mode,
    458 				 track->cb_color_bo_offset[i], tmp,
    459 				 radeon_bo_size(track->cb_color_bo[i]),
    460 				 pitch, height, r600_fmt_get_nblocksx(format, pitch),
    461 				 r600_fmt_get_nblocksy(format, height),
    462 				 r600_fmt_get_blocksize(format));
    463 			return -EINVAL;
    464 		}
    465 	}
    466 	/* limit max tile */
    467 	tmp = (height * pitch) >> 6;
    468 	if (tmp < slice_tile_max)
    469 		slice_tile_max = tmp;
    470 	tmp = S_028060_PITCH_TILE_MAX((pitch / 8) - 1) |
    471 		S_028060_SLICE_TILE_MAX(slice_tile_max - 1);
    472 	ib[track->cb_color_size_idx[i]] = tmp;
    473 
    474 	/* FMASK/CMASK */
    475 	switch (G_0280A0_TILE_MODE(track->cb_color_info[i])) {
    476 	case V_0280A0_TILE_DISABLE:
    477 		break;
    478 	case V_0280A0_FRAG_ENABLE:
    479 		if (track->nsamples > 1) {
    480 			uint32_t tile_max = G_028100_FMASK_TILE_MAX(track->cb_color_mask[i]);
    481 			/* the tile size is 8x8, but the size is in units of bits.
    482 			 * for bytes, do just * 8. */
    483 			uint32_t bytes = track->nsamples * track->log_nsamples * 8 * (tile_max + 1);
    484 
    485 			if (bytes + track->cb_color_frag_offset[i] >
    486 			    radeon_bo_size(track->cb_color_frag_bo[i])) {
    487 				dev_warn(p->dev, "%s FMASK_TILE_MAX too large "
    488 					 "(tile_max=%u, bytes=%u, offset=%"PRIu64", bo_size=%lu)\n",
    489 					 __func__, tile_max, bytes,
    490 					 track->cb_color_frag_offset[i],
    491 					 radeon_bo_size(track->cb_color_frag_bo[i]));
    492 				return -EINVAL;
    493 			}
    494 		}
    495 		/* fall through */
    496 	case V_0280A0_CLEAR_ENABLE:
    497 	{
    498 		uint32_t block_max = G_028100_CMASK_BLOCK_MAX(track->cb_color_mask[i]);
    499 		/* One block = 128x128 pixels, one 8x8 tile has 4 bits..
    500 		 * (128*128) / (8*8) / 2 = 128 bytes per block. */
    501 		uint32_t bytes = (block_max + 1) * 128;
    502 
    503 		if (bytes + track->cb_color_tile_offset[i] >
    504 		    radeon_bo_size(track->cb_color_tile_bo[i])) {
    505 			dev_warn(p->dev, "%s CMASK_BLOCK_MAX too large "
    506 				 "(block_max=%u, bytes=%u, offset=%"PRIu64", bo_size=%lu)\n",
    507 				 __func__, block_max, bytes,
    508 				 track->cb_color_tile_offset[i],
    509 				 radeon_bo_size(track->cb_color_tile_bo[i]));
    510 			return -EINVAL;
    511 		}
    512 		break;
    513 	}
    514 	default:
    515 		dev_warn(p->dev, "%s invalid tile mode\n", __func__);
    516 		return -EINVAL;
    517 	}
    518 	return 0;
    519 }
    520 
    521 static int r600_cs_track_validate_db(struct radeon_cs_parser *p)
    522 {
    523 	struct r600_cs_track *track = p->track;
    524 	u32 nviews, bpe, ntiles, size __unused, slice_tile_max, tmp;
    525 	u32 height_align, pitch_align, depth_align;
    526 	u32 pitch = 8192;
    527 	u32 height = 8192;
    528 	u64 base_offset, base_align;
    529 	struct array_mode_checker array_check;
    530 	int array_mode;
    531 	volatile u32 *ib = p->ib.ptr;
    532 
    533 
    534 	if (track->db_bo == NULL) {
    535 		dev_warn(p->dev, "z/stencil with no depth buffer\n");
    536 		return -EINVAL;
    537 	}
    538 	switch (G_028010_FORMAT(track->db_depth_info)) {
    539 	case V_028010_DEPTH_16:
    540 		bpe = 2;
    541 		break;
    542 	case V_028010_DEPTH_X8_24:
    543 	case V_028010_DEPTH_8_24:
    544 	case V_028010_DEPTH_X8_24_FLOAT:
    545 	case V_028010_DEPTH_8_24_FLOAT:
    546 	case V_028010_DEPTH_32_FLOAT:
    547 		bpe = 4;
    548 		break;
    549 	case V_028010_DEPTH_X24_8_32_FLOAT:
    550 		bpe = 8;
    551 		break;
    552 	default:
    553 		dev_warn(p->dev, "z/stencil with invalid format %d\n", G_028010_FORMAT(track->db_depth_info));
    554 		return -EINVAL;
    555 	}
    556 	if ((track->db_depth_size & 0xFFFFFC00) == 0xFFFFFC00) {
    557 		if (!track->db_depth_size_idx) {
    558 			dev_warn(p->dev, "z/stencil buffer size not set\n");
    559 			return -EINVAL;
    560 		}
    561 		tmp = radeon_bo_size(track->db_bo) - track->db_offset;
    562 		tmp = (tmp / bpe) >> 6;
    563 		if (!tmp) {
    564 			dev_warn(p->dev, "z/stencil buffer too small (0x%08X %d %d %ld)\n",
    565 					track->db_depth_size, bpe, track->db_offset,
    566 					radeon_bo_size(track->db_bo));
    567 			return -EINVAL;
    568 		}
    569 		ib[track->db_depth_size_idx] = S_028000_SLICE_TILE_MAX(tmp - 1) | (track->db_depth_size & 0x3FF);
    570 	} else {
    571 		size = radeon_bo_size(track->db_bo);
    572 		/* pitch in pixels */
    573 		pitch = (G_028000_PITCH_TILE_MAX(track->db_depth_size) + 1) * 8;
    574 		slice_tile_max = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
    575 		slice_tile_max *= 64;
    576 		height = slice_tile_max / pitch;
    577 		if (height > 8192)
    578 			height = 8192;
    579 		base_offset = track->db_bo_mc + track->db_offset;
    580 		array_mode = G_028010_ARRAY_MODE(track->db_depth_info);
    581 		array_check.array_mode = array_mode;
    582 		array_check.group_size = track->group_size;
    583 		array_check.nbanks = track->nbanks;
    584 		array_check.npipes = track->npipes;
    585 		array_check.nsamples = track->nsamples;
    586 		array_check.blocksize = bpe;
    587 		if (r600_get_array_mode_alignment(&array_check,
    588 					&pitch_align, &height_align, &depth_align, &base_align)) {
    589 			dev_warn(p->dev, "%s invalid tiling %d (0x%08X)\n", __func__,
    590 					G_028010_ARRAY_MODE(track->db_depth_info),
    591 					track->db_depth_info);
    592 			return -EINVAL;
    593 		}
    594 		switch (array_mode) {
    595 		case V_028010_ARRAY_1D_TILED_THIN1:
    596 			/* don't break userspace */
    597 			height &= ~0x7;
    598 			break;
    599 		case V_028010_ARRAY_2D_TILED_THIN1:
    600 			break;
    601 		default:
    602 			dev_warn(p->dev, "%s invalid tiling %d (0x%08X)\n", __func__,
    603 					G_028010_ARRAY_MODE(track->db_depth_info),
    604 					track->db_depth_info);
    605 			return -EINVAL;
    606 		}
    607 
    608 		if (!IS_ALIGNED(pitch, pitch_align)) {
    609 			dev_warn(p->dev, "%s:%d db pitch (%d, 0x%x, %d) invalid\n",
    610 					__func__, __LINE__, pitch, pitch_align, array_mode);
    611 			return -EINVAL;
    612 		}
    613 		if (!IS_ALIGNED(height, height_align)) {
    614 			dev_warn(p->dev, "%s:%d db height (%d, 0x%x, %d) invalid\n",
    615 					__func__, __LINE__, height, height_align, array_mode);
    616 			return -EINVAL;
    617 		}
    618 		if (!IS_ALIGNED(base_offset, base_align)) {
    619 			dev_warn(p->dev, "%s offset 0x%"PRIx64", 0x%"PRIx64", %d not aligned\n", __func__,
    620 					base_offset, base_align, array_mode);
    621 			return -EINVAL;
    622 		}
    623 
    624 		ntiles = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
    625 		nviews = G_028004_SLICE_MAX(track->db_depth_view) + 1;
    626 		tmp = ntiles * bpe * 64 * nviews * track->nsamples;
    627 		if ((tmp + track->db_offset) > radeon_bo_size(track->db_bo)) {
    628 			dev_warn(p->dev, "z/stencil buffer (%d) too small (0x%08X %d %d %d -> %u have %lu)\n",
    629 					array_mode,
    630 					track->db_depth_size, ntiles, nviews, bpe, tmp + track->db_offset,
    631 					radeon_bo_size(track->db_bo));
    632 			return -EINVAL;
    633 		}
    634 	}
    635 
    636 	/* hyperz */
    637 	if (G_028010_TILE_SURFACE_ENABLE(track->db_depth_info)) {
    638 		unsigned long size;
    639 		unsigned nbx, nby;
    640 
    641 		if (track->htile_bo == NULL) {
    642 			dev_warn(p->dev, "%s:%d htile enabled without htile surface 0x%08x\n",
    643 				 __func__, __LINE__, track->db_depth_info);
    644 			return -EINVAL;
    645 		}
    646 		if ((track->db_depth_size & 0xFFFFFC00) == 0xFFFFFC00) {
    647 			dev_warn(p->dev, "%s:%d htile can't be enabled with bogus db_depth_size 0x%08x\n",
    648 				 __func__, __LINE__, track->db_depth_size);
    649 			return -EINVAL;
    650 		}
    651 
    652 		nbx = pitch;
    653 		nby = height;
    654 		if (G_028D24_LINEAR(track->htile_surface)) {
    655 			/* nbx must be 16 htiles aligned == 16 * 8 pixel aligned */
    656 			nbx = round_up(nbx, 16 * 8);
    657 			/* nby is npipes htiles aligned == npipes * 8 pixel aligned */
    658 			nby = round_up(nby, track->npipes * 8);
    659 		} else {
    660 			/* always assume 8x8 htile */
    661 			/* align is htile align * 8, htile align vary according to
    662 			 * number of pipe and tile width and nby
    663 			 */
    664 			switch (track->npipes) {
    665 			case 8:
    666 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
    667 				nbx = round_up(nbx, 64 * 8);
    668 				nby = round_up(nby, 64 * 8);
    669 				break;
    670 			case 4:
    671 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
    672 				nbx = round_up(nbx, 64 * 8);
    673 				nby = round_up(nby, 32 * 8);
    674 				break;
    675 			case 2:
    676 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
    677 				nbx = round_up(nbx, 32 * 8);
    678 				nby = round_up(nby, 32 * 8);
    679 				break;
    680 			case 1:
    681 				/* HTILE_WIDTH = 8 & HTILE_HEIGHT = 8*/
    682 				nbx = round_up(nbx, 32 * 8);
    683 				nby = round_up(nby, 16 * 8);
    684 				break;
    685 			default:
    686 				dev_warn(p->dev, "%s:%d invalid num pipes %d\n",
    687 					 __func__, __LINE__, track->npipes);
    688 				return -EINVAL;
    689 			}
    690 		}
    691 		/* compute number of htile */
    692 		nbx = nbx >> 3;
    693 		nby = nby >> 3;
    694 		/* size must be aligned on npipes * 2K boundary */
    695 		size = roundup(nbx * nby * 4, track->npipes * (2 << 10));
    696 		size += track->htile_offset;
    697 
    698 		if (size > radeon_bo_size(track->htile_bo)) {
    699 			dev_warn(p->dev, "%s:%d htile surface too small %ld for %ld (%d %d)\n",
    700 				 __func__, __LINE__, radeon_bo_size(track->htile_bo),
    701 				 size, nbx, nby);
    702 			return -EINVAL;
    703 		}
    704 	}
    705 
    706 	track->db_dirty = false;
    707 	return 0;
    708 }
    709 
    710 static int r600_cs_track_check(struct radeon_cs_parser *p)
    711 {
    712 	struct r600_cs_track *track = p->track;
    713 	u32 tmp;
    714 	int r, i;
    715 
    716 	/* on legacy kernel we don't perform advanced check */
    717 	if (p->rdev == NULL)
    718 		return 0;
    719 
    720 	/* check streamout */
    721 	if (track->streamout_dirty && track->vgt_strmout_en) {
    722 		for (i = 0; i < 4; i++) {
    723 			if (track->vgt_strmout_buffer_en & (1 << i)) {
    724 				if (track->vgt_strmout_bo[i]) {
    725 					u64 offset = (u64)track->vgt_strmout_bo_offset[i] +
    726 						(u64)track->vgt_strmout_size[i];
    727 					if (offset > radeon_bo_size(track->vgt_strmout_bo[i])) {
    728 						DRM_ERROR("streamout %d bo too small: 0x%"PRIx64", 0x%lx\n",
    729 							  i, offset,
    730 							  radeon_bo_size(track->vgt_strmout_bo[i]));
    731 						return -EINVAL;
    732 					}
    733 				} else {
    734 					dev_warn(p->dev, "No buffer for streamout %d\n", i);
    735 					return -EINVAL;
    736 				}
    737 			}
    738 		}
    739 		track->streamout_dirty = false;
    740 	}
    741 
    742 	if (track->sx_misc_kill_all_prims)
    743 		return 0;
    744 
    745 	/* check that we have a cb for each enabled target, we don't check
    746 	 * shader_mask because it seems mesa isn't always setting it :(
    747 	 */
    748 	if (track->cb_dirty) {
    749 		tmp = track->cb_target_mask;
    750 
    751 		/* We must check both colorbuffers for RESOLVE. */
    752 		if (track->is_resolve) {
    753 			tmp |= 0xff;
    754 		}
    755 
    756 		for (i = 0; i < 8; i++) {
    757 			u32 format = G_0280A0_FORMAT(track->cb_color_info[i]);
    758 
    759 			if (format != V_0280A0_COLOR_INVALID &&
    760 			    (tmp >> (i * 4)) & 0xF) {
    761 				/* at least one component is enabled */
    762 				if (track->cb_color_bo[i] == NULL) {
    763 					dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
    764 						__func__, __LINE__, track->cb_target_mask, track->cb_shader_mask, i);
    765 					return -EINVAL;
    766 				}
    767 				/* perform rewrite of CB_COLOR[0-7]_SIZE */
    768 				r = r600_cs_track_validate_cb(p, i);
    769 				if (r)
    770 					return r;
    771 			}
    772 		}
    773 		track->cb_dirty = false;
    774 	}
    775 
    776 	/* Check depth buffer */
    777 	if (track->db_dirty &&
    778 	    G_028010_FORMAT(track->db_depth_info) != V_028010_DEPTH_INVALID &&
    779 	    (G_028800_STENCIL_ENABLE(track->db_depth_control) ||
    780 	     G_028800_Z_ENABLE(track->db_depth_control))) {
    781 		r = r600_cs_track_validate_db(p);
    782 		if (r)
    783 			return r;
    784 	}
    785 
    786 	return 0;
    787 }
    788 
    789 /**
    790  * r600_cs_packet_parse_vline() - parse userspace VLINE packet
    791  * @parser:		parser structure holding parsing context.
    792  *
    793  * This is an R600-specific function for parsing VLINE packets.
    794  * Real work is done by r600_cs_common_vline_parse function.
    795  * Here we just set up ASIC-specific register table and call
    796  * the common implementation function.
    797  */
    798 static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
    799 {
    800 	static uint32_t vline_start_end[2] = {AVIVO_D1MODE_VLINE_START_END,
    801 					      AVIVO_D2MODE_VLINE_START_END};
    802 	static uint32_t vline_status[2] = {AVIVO_D1MODE_VLINE_STATUS,
    803 					   AVIVO_D2MODE_VLINE_STATUS};
    804 
    805 	return r600_cs_common_vline_parse(p, vline_start_end, vline_status);
    806 }
    807 
    808 /**
    809  * r600_cs_common_vline_parse() - common vline parser
    810  * @parser:		parser structure holding parsing context.
    811  * @vline_start_end:    table of vline_start_end registers
    812  * @vline_status:       table of vline_status registers
    813  *
    814  * Userspace sends a special sequence for VLINE waits.
    815  * PACKET0 - VLINE_START_END + value
    816  * PACKET3 - WAIT_REG_MEM poll vline status reg
    817  * RELOC (P3) - crtc_id in reloc.
    818  *
    819  * This function parses this and relocates the VLINE START END
    820  * and WAIT_REG_MEM packets to the correct crtc.
    821  * It also detects a switched off crtc and nulls out the
    822  * wait in that case. This function is common for all ASICs that
    823  * are R600 and newer. The parsing algorithm is the same, and only
    824  * differs in which registers are used.
    825  *
    826  * Caller is the ASIC-specific function which passes the parser
    827  * context and ASIC-specific register table
    828  */
    829 int r600_cs_common_vline_parse(struct radeon_cs_parser *p,
    830 			       uint32_t *vline_start_end,
    831 			       uint32_t *vline_status)
    832 {
    833 	struct drm_crtc *crtc;
    834 	struct radeon_crtc *radeon_crtc;
    835 	struct radeon_cs_packet p3reloc, wait_reg_mem;
    836 	int crtc_id;
    837 	int r;
    838 	uint32_t header, h_idx, reg, wait_reg_mem_info;
    839 	volatile uint32_t *ib;
    840 
    841 	ib = p->ib.ptr;
    842 
    843 	/* parse the WAIT_REG_MEM */
    844 	r = radeon_cs_packet_parse(p, &wait_reg_mem, p->idx);
    845 	if (r)
    846 		return r;
    847 
    848 	/* check its a WAIT_REG_MEM */
    849 	if (wait_reg_mem.type != RADEON_PACKET_TYPE3 ||
    850 	    wait_reg_mem.opcode != PACKET3_WAIT_REG_MEM) {
    851 		DRM_ERROR("vline wait missing WAIT_REG_MEM segment\n");
    852 		return -EINVAL;
    853 	}
    854 
    855 	wait_reg_mem_info = radeon_get_ib_value(p, wait_reg_mem.idx + 1);
    856 	/* bit 4 is reg (0) or mem (1) */
    857 	if (wait_reg_mem_info & 0x10) {
    858 		DRM_ERROR("vline WAIT_REG_MEM waiting on MEM instead of REG\n");
    859 		return -EINVAL;
    860 	}
    861 	/* bit 8 is me (0) or pfp (1) */
    862 	if (wait_reg_mem_info & 0x100) {
    863 		DRM_ERROR("vline WAIT_REG_MEM waiting on PFP instead of ME\n");
    864 		return -EINVAL;
    865 	}
    866 	/* waiting for value to be equal */
    867 	if ((wait_reg_mem_info & 0x7) != 0x3) {
    868 		DRM_ERROR("vline WAIT_REG_MEM function not equal\n");
    869 		return -EINVAL;
    870 	}
    871 	if ((radeon_get_ib_value(p, wait_reg_mem.idx + 2) << 2) != vline_status[0]) {
    872 		DRM_ERROR("vline WAIT_REG_MEM bad reg\n");
    873 		return -EINVAL;
    874 	}
    875 
    876 	if (radeon_get_ib_value(p, wait_reg_mem.idx + 5) != RADEON_VLINE_STAT) {
    877 		DRM_ERROR("vline WAIT_REG_MEM bad bit mask\n");
    878 		return -EINVAL;
    879 	}
    880 
    881 	/* jump over the NOP */
    882 	r = radeon_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
    883 	if (r)
    884 		return r;
    885 
    886 	h_idx = p->idx - 2;
    887 	p->idx += wait_reg_mem.count + 2;
    888 	p->idx += p3reloc.count + 2;
    889 
    890 	header = radeon_get_ib_value(p, h_idx);
    891 	crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
    892 	reg = R600_CP_PACKET0_GET_REG(header);
    893 
    894 	crtc = drm_crtc_find(p->rdev->ddev, crtc_id);
    895 	if (!crtc) {
    896 		DRM_ERROR("cannot find crtc %d\n", crtc_id);
    897 		return -ENOENT;
    898 	}
    899 	radeon_crtc = to_radeon_crtc(crtc);
    900 	crtc_id = radeon_crtc->crtc_id;
    901 
    902 	if (!crtc->enabled) {
    903 		/* CRTC isn't enabled - we need to nop out the WAIT_REG_MEM */
    904 		ib[h_idx + 2] = PACKET2(0);
    905 		ib[h_idx + 3] = PACKET2(0);
    906 		ib[h_idx + 4] = PACKET2(0);
    907 		ib[h_idx + 5] = PACKET2(0);
    908 		ib[h_idx + 6] = PACKET2(0);
    909 		ib[h_idx + 7] = PACKET2(0);
    910 		ib[h_idx + 8] = PACKET2(0);
    911 	} else if (reg == vline_start_end[0]) {
    912 		header &= ~R600_CP_PACKET0_REG_MASK;
    913 		header |= vline_start_end[crtc_id] >> 2;
    914 		ib[h_idx] = header;
    915 		ib[h_idx + 4] = vline_status[crtc_id] >> 2;
    916 	} else {
    917 		DRM_ERROR("unknown crtc reloc\n");
    918 		return -EINVAL;
    919 	}
    920 	return 0;
    921 }
    922 
    923 static int r600_packet0_check(struct radeon_cs_parser *p,
    924 				struct radeon_cs_packet *pkt,
    925 				unsigned idx, unsigned reg)
    926 {
    927 	int r;
    928 
    929 	switch (reg) {
    930 	case AVIVO_D1MODE_VLINE_START_END:
    931 		r = r600_cs_packet_parse_vline(p);
    932 		if (r) {
    933 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
    934 					idx, reg);
    935 			return r;
    936 		}
    937 		break;
    938 	default:
    939 		printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
    940 		       reg, idx);
    941 		return -EINVAL;
    942 	}
    943 	return 0;
    944 }
    945 
    946 static int r600_cs_parse_packet0(struct radeon_cs_parser *p,
    947 				struct radeon_cs_packet *pkt)
    948 {
    949 	unsigned reg, i;
    950 	unsigned idx;
    951 	int r;
    952 
    953 	idx = pkt->idx + 1;
    954 	reg = pkt->reg;
    955 	for (i = 0; i <= pkt->count; i++, idx++, reg += 4) {
    956 		r = r600_packet0_check(p, pkt, idx, reg);
    957 		if (r) {
    958 			return r;
    959 		}
    960 	}
    961 	return 0;
    962 }
    963 
    964 /**
    965  * r600_cs_check_reg() - check if register is authorized or not
    966  * @parser: parser structure holding parsing context
    967  * @reg: register we are testing
    968  * @idx: index into the cs buffer
    969  *
    970  * This function will test against r600_reg_safe_bm and return 0
    971  * if register is safe. If register is not flag as safe this function
    972  * will test it against a list of register needind special handling.
    973  */
    974 static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
    975 {
    976 	struct r600_cs_track *track = (struct r600_cs_track *)p->track;
    977 	struct radeon_bo_list *reloc;
    978 	u32 m, i, tmp, *ib;
    979 	int r;
    980 
    981 	i = (reg >> 7);
    982 	if (i >= ARRAY_SIZE(r600_reg_safe_bm)) {
    983 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
    984 		return -EINVAL;
    985 	}
    986 	m = 1 << ((reg >> 2) & 31);
    987 	if (!(r600_reg_safe_bm[i] & m))
    988 		return 0;
    989 	ib = p->ib.ptr;
    990 	switch (reg) {
    991 	/* force following reg to 0 in an attempt to disable out buffer
    992 	 * which will need us to better understand how it works to perform
    993 	 * security check on it (Jerome)
    994 	 */
    995 	case R_0288A8_SQ_ESGS_RING_ITEMSIZE:
    996 	case R_008C44_SQ_ESGS_RING_SIZE:
    997 	case R_0288B0_SQ_ESTMP_RING_ITEMSIZE:
    998 	case R_008C54_SQ_ESTMP_RING_SIZE:
    999 	case R_0288C0_SQ_FBUF_RING_ITEMSIZE:
   1000 	case R_008C74_SQ_FBUF_RING_SIZE:
   1001 	case R_0288B4_SQ_GSTMP_RING_ITEMSIZE:
   1002 	case R_008C5C_SQ_GSTMP_RING_SIZE:
   1003 	case R_0288AC_SQ_GSVS_RING_ITEMSIZE:
   1004 	case R_008C4C_SQ_GSVS_RING_SIZE:
   1005 	case R_0288BC_SQ_PSTMP_RING_ITEMSIZE:
   1006 	case R_008C6C_SQ_PSTMP_RING_SIZE:
   1007 	case R_0288C4_SQ_REDUC_RING_ITEMSIZE:
   1008 	case R_008C7C_SQ_REDUC_RING_SIZE:
   1009 	case R_0288B8_SQ_VSTMP_RING_ITEMSIZE:
   1010 	case R_008C64_SQ_VSTMP_RING_SIZE:
   1011 	case R_0288C8_SQ_GS_VERT_ITEMSIZE:
   1012 		/* get value to populate the IB don't remove */
   1013 		/*tmp =radeon_get_ib_value(p, idx);
   1014 		  ib[idx] = 0;*/
   1015 		break;
   1016 	case SQ_ESGS_RING_BASE:
   1017 	case SQ_GSVS_RING_BASE:
   1018 	case SQ_ESTMP_RING_BASE:
   1019 	case SQ_GSTMP_RING_BASE:
   1020 	case SQ_PSTMP_RING_BASE:
   1021 	case SQ_VSTMP_RING_BASE:
   1022 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
   1023 		if (r) {
   1024 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1025 					"0x%04X\n", reg);
   1026 			return -EINVAL;
   1027 		}
   1028 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1029 		break;
   1030 	case SQ_CONFIG:
   1031 		track->sq_config = radeon_get_ib_value(p, idx);
   1032 		break;
   1033 	case R_028800_DB_DEPTH_CONTROL:
   1034 		track->db_depth_control = radeon_get_ib_value(p, idx);
   1035 		track->db_dirty = true;
   1036 		break;
   1037 	case R_028010_DB_DEPTH_INFO:
   1038 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) &&
   1039 		    radeon_cs_packet_next_is_pkt3_nop(p)) {
   1040 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1041 			if (r) {
   1042 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1043 					 "0x%04X\n", reg);
   1044 				return -EINVAL;
   1045 			}
   1046 			track->db_depth_info = radeon_get_ib_value(p, idx);
   1047 			ib[idx] &= C_028010_ARRAY_MODE;
   1048 			track->db_depth_info &= C_028010_ARRAY_MODE;
   1049 			if (reloc->tiling_flags & RADEON_TILING_MACRO) {
   1050 				ib[idx] |= S_028010_ARRAY_MODE(V_028010_ARRAY_2D_TILED_THIN1);
   1051 				track->db_depth_info |= S_028010_ARRAY_MODE(V_028010_ARRAY_2D_TILED_THIN1);
   1052 			} else {
   1053 				ib[idx] |= S_028010_ARRAY_MODE(V_028010_ARRAY_1D_TILED_THIN1);
   1054 				track->db_depth_info |= S_028010_ARRAY_MODE(V_028010_ARRAY_1D_TILED_THIN1);
   1055 			}
   1056 		} else {
   1057 			track->db_depth_info = radeon_get_ib_value(p, idx);
   1058 		}
   1059 		track->db_dirty = true;
   1060 		break;
   1061 	case R_028004_DB_DEPTH_VIEW:
   1062 		track->db_depth_view = radeon_get_ib_value(p, idx);
   1063 		track->db_dirty = true;
   1064 		break;
   1065 	case R_028000_DB_DEPTH_SIZE:
   1066 		track->db_depth_size = radeon_get_ib_value(p, idx);
   1067 		track->db_depth_size_idx = idx;
   1068 		track->db_dirty = true;
   1069 		break;
   1070 	case R_028AB0_VGT_STRMOUT_EN:
   1071 		track->vgt_strmout_en = radeon_get_ib_value(p, idx);
   1072 		track->streamout_dirty = true;
   1073 		break;
   1074 	case R_028B20_VGT_STRMOUT_BUFFER_EN:
   1075 		track->vgt_strmout_buffer_en = radeon_get_ib_value(p, idx);
   1076 		track->streamout_dirty = true;
   1077 		break;
   1078 	case VGT_STRMOUT_BUFFER_BASE_0:
   1079 	case VGT_STRMOUT_BUFFER_BASE_1:
   1080 	case VGT_STRMOUT_BUFFER_BASE_2:
   1081 	case VGT_STRMOUT_BUFFER_BASE_3:
   1082 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1083 		if (r) {
   1084 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1085 					"0x%04X\n", reg);
   1086 			return -EINVAL;
   1087 		}
   1088 		tmp = (reg - VGT_STRMOUT_BUFFER_BASE_0) / 16;
   1089 		track->vgt_strmout_bo_offset[tmp] = radeon_get_ib_value(p, idx) << 8;
   1090 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1091 		track->vgt_strmout_bo[tmp] = reloc->robj;
   1092 		track->vgt_strmout_bo_mc[tmp] = reloc->gpu_offset;
   1093 		track->streamout_dirty = true;
   1094 		break;
   1095 	case VGT_STRMOUT_BUFFER_SIZE_0:
   1096 	case VGT_STRMOUT_BUFFER_SIZE_1:
   1097 	case VGT_STRMOUT_BUFFER_SIZE_2:
   1098 	case VGT_STRMOUT_BUFFER_SIZE_3:
   1099 		tmp = (reg - VGT_STRMOUT_BUFFER_SIZE_0) / 16;
   1100 		/* size in register is DWs, convert to bytes */
   1101 		track->vgt_strmout_size[tmp] = radeon_get_ib_value(p, idx) * 4;
   1102 		track->streamout_dirty = true;
   1103 		break;
   1104 	case CP_COHER_BASE:
   1105 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1106 		if (r) {
   1107 			dev_warn(p->dev, "missing reloc for CP_COHER_BASE "
   1108 					"0x%04X\n", reg);
   1109 			return -EINVAL;
   1110 		}
   1111 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1112 		break;
   1113 	case R_028238_CB_TARGET_MASK:
   1114 		track->cb_target_mask = radeon_get_ib_value(p, idx);
   1115 		track->cb_dirty = true;
   1116 		break;
   1117 	case R_02823C_CB_SHADER_MASK:
   1118 		track->cb_shader_mask = radeon_get_ib_value(p, idx);
   1119 		break;
   1120 	case R_028C04_PA_SC_AA_CONFIG:
   1121 		tmp = G_028C04_MSAA_NUM_SAMPLES(radeon_get_ib_value(p, idx));
   1122 		track->log_nsamples = tmp;
   1123 		track->nsamples = 1 << tmp;
   1124 		track->cb_dirty = true;
   1125 		break;
   1126 	case R_028808_CB_COLOR_CONTROL:
   1127 		tmp = G_028808_SPECIAL_OP(radeon_get_ib_value(p, idx));
   1128 		track->is_resolve = tmp == V_028808_SPECIAL_RESOLVE_BOX;
   1129 		track->cb_dirty = true;
   1130 		break;
   1131 	case R_0280A0_CB_COLOR0_INFO:
   1132 	case R_0280A4_CB_COLOR1_INFO:
   1133 	case R_0280A8_CB_COLOR2_INFO:
   1134 	case R_0280AC_CB_COLOR3_INFO:
   1135 	case R_0280B0_CB_COLOR4_INFO:
   1136 	case R_0280B4_CB_COLOR5_INFO:
   1137 	case R_0280B8_CB_COLOR6_INFO:
   1138 	case R_0280BC_CB_COLOR7_INFO:
   1139 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) &&
   1140 		     radeon_cs_packet_next_is_pkt3_nop(p)) {
   1141 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1142 			if (r) {
   1143 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
   1144 				return -EINVAL;
   1145 			}
   1146 			tmp = (reg - R_0280A0_CB_COLOR0_INFO) / 4;
   1147 			track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
   1148 			if (reloc->tiling_flags & RADEON_TILING_MACRO) {
   1149 				ib[idx] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_2D_TILED_THIN1);
   1150 				track->cb_color_info[tmp] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_2D_TILED_THIN1);
   1151 			} else if (reloc->tiling_flags & RADEON_TILING_MICRO) {
   1152 				ib[idx] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_1D_TILED_THIN1);
   1153 				track->cb_color_info[tmp] |= S_0280A0_ARRAY_MODE(V_0280A0_ARRAY_1D_TILED_THIN1);
   1154 			}
   1155 		} else {
   1156 			tmp = (reg - R_0280A0_CB_COLOR0_INFO) / 4;
   1157 			track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
   1158 		}
   1159 		track->cb_dirty = true;
   1160 		break;
   1161 	case R_028080_CB_COLOR0_VIEW:
   1162 	case R_028084_CB_COLOR1_VIEW:
   1163 	case R_028088_CB_COLOR2_VIEW:
   1164 	case R_02808C_CB_COLOR3_VIEW:
   1165 	case R_028090_CB_COLOR4_VIEW:
   1166 	case R_028094_CB_COLOR5_VIEW:
   1167 	case R_028098_CB_COLOR6_VIEW:
   1168 	case R_02809C_CB_COLOR7_VIEW:
   1169 		tmp = (reg - R_028080_CB_COLOR0_VIEW) / 4;
   1170 		track->cb_color_view[tmp] = radeon_get_ib_value(p, idx);
   1171 		track->cb_dirty = true;
   1172 		break;
   1173 	case R_028060_CB_COLOR0_SIZE:
   1174 	case R_028064_CB_COLOR1_SIZE:
   1175 	case R_028068_CB_COLOR2_SIZE:
   1176 	case R_02806C_CB_COLOR3_SIZE:
   1177 	case R_028070_CB_COLOR4_SIZE:
   1178 	case R_028074_CB_COLOR5_SIZE:
   1179 	case R_028078_CB_COLOR6_SIZE:
   1180 	case R_02807C_CB_COLOR7_SIZE:
   1181 		tmp = (reg - R_028060_CB_COLOR0_SIZE) / 4;
   1182 		track->cb_color_size[tmp] = radeon_get_ib_value(p, idx);
   1183 		track->cb_color_size_idx[tmp] = idx;
   1184 		track->cb_dirty = true;
   1185 		break;
   1186 		/* This register were added late, there is userspace
   1187 		 * which does provide relocation for those but set
   1188 		 * 0 offset. In order to avoid breaking old userspace
   1189 		 * we detect this and set address to point to last
   1190 		 * CB_COLOR0_BASE, note that if userspace doesn't set
   1191 		 * CB_COLOR0_BASE before this register we will report
   1192 		 * error. Old userspace always set CB_COLOR0_BASE
   1193 		 * before any of this.
   1194 		 */
   1195 	case R_0280E0_CB_COLOR0_FRAG:
   1196 	case R_0280E4_CB_COLOR1_FRAG:
   1197 	case R_0280E8_CB_COLOR2_FRAG:
   1198 	case R_0280EC_CB_COLOR3_FRAG:
   1199 	case R_0280F0_CB_COLOR4_FRAG:
   1200 	case R_0280F4_CB_COLOR5_FRAG:
   1201 	case R_0280F8_CB_COLOR6_FRAG:
   1202 	case R_0280FC_CB_COLOR7_FRAG:
   1203 		tmp = (reg - R_0280E0_CB_COLOR0_FRAG) / 4;
   1204 		if (!radeon_cs_packet_next_is_pkt3_nop(p)) {
   1205 			if (!track->cb_color_base_last[tmp]) {
   1206 				dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
   1207 				return -EINVAL;
   1208 			}
   1209 			track->cb_color_frag_bo[tmp] = track->cb_color_bo[tmp];
   1210 			track->cb_color_frag_offset[tmp] = track->cb_color_bo_offset[tmp];
   1211 			ib[idx] = track->cb_color_base_last[tmp];
   1212 		} else {
   1213 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1214 			if (r) {
   1215 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
   1216 				return -EINVAL;
   1217 			}
   1218 			track->cb_color_frag_bo[tmp] = reloc->robj;
   1219 			track->cb_color_frag_offset[tmp] = (u64)ib[idx] << 8;
   1220 			ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1221 		}
   1222 		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
   1223 			track->cb_dirty = true;
   1224 		}
   1225 		break;
   1226 	case R_0280C0_CB_COLOR0_TILE:
   1227 	case R_0280C4_CB_COLOR1_TILE:
   1228 	case R_0280C8_CB_COLOR2_TILE:
   1229 	case R_0280CC_CB_COLOR3_TILE:
   1230 	case R_0280D0_CB_COLOR4_TILE:
   1231 	case R_0280D4_CB_COLOR5_TILE:
   1232 	case R_0280D8_CB_COLOR6_TILE:
   1233 	case R_0280DC_CB_COLOR7_TILE:
   1234 		tmp = (reg - R_0280C0_CB_COLOR0_TILE) / 4;
   1235 		if (!radeon_cs_packet_next_is_pkt3_nop(p)) {
   1236 			if (!track->cb_color_base_last[tmp]) {
   1237 				dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
   1238 				return -EINVAL;
   1239 			}
   1240 			track->cb_color_tile_bo[tmp] = track->cb_color_bo[tmp];
   1241 			track->cb_color_tile_offset[tmp] = track->cb_color_bo_offset[tmp];
   1242 			ib[idx] = track->cb_color_base_last[tmp];
   1243 		} else {
   1244 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1245 			if (r) {
   1246 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
   1247 				return -EINVAL;
   1248 			}
   1249 			track->cb_color_tile_bo[tmp] = reloc->robj;
   1250 			track->cb_color_tile_offset[tmp] = (u64)ib[idx] << 8;
   1251 			ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1252 		}
   1253 		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
   1254 			track->cb_dirty = true;
   1255 		}
   1256 		break;
   1257 	case R_028100_CB_COLOR0_MASK:
   1258 	case R_028104_CB_COLOR1_MASK:
   1259 	case R_028108_CB_COLOR2_MASK:
   1260 	case R_02810C_CB_COLOR3_MASK:
   1261 	case R_028110_CB_COLOR4_MASK:
   1262 	case R_028114_CB_COLOR5_MASK:
   1263 	case R_028118_CB_COLOR6_MASK:
   1264 	case R_02811C_CB_COLOR7_MASK:
   1265 		tmp = (reg - R_028100_CB_COLOR0_MASK) / 4;
   1266 		track->cb_color_mask[tmp] = radeon_get_ib_value(p, idx);
   1267 		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
   1268 			track->cb_dirty = true;
   1269 		}
   1270 		break;
   1271 	case CB_COLOR0_BASE:
   1272 	case CB_COLOR1_BASE:
   1273 	case CB_COLOR2_BASE:
   1274 	case CB_COLOR3_BASE:
   1275 	case CB_COLOR4_BASE:
   1276 	case CB_COLOR5_BASE:
   1277 	case CB_COLOR6_BASE:
   1278 	case CB_COLOR7_BASE:
   1279 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1280 		if (r) {
   1281 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1282 					"0x%04X\n", reg);
   1283 			return -EINVAL;
   1284 		}
   1285 		tmp = (reg - CB_COLOR0_BASE) / 4;
   1286 		track->cb_color_bo_offset[tmp] = radeon_get_ib_value(p, idx) << 8;
   1287 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1288 		track->cb_color_base_last[tmp] = ib[idx];
   1289 		track->cb_color_bo[tmp] = reloc->robj;
   1290 		track->cb_color_bo_mc[tmp] = reloc->gpu_offset;
   1291 		track->cb_dirty = true;
   1292 		break;
   1293 	case DB_DEPTH_BASE:
   1294 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1295 		if (r) {
   1296 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1297 					"0x%04X\n", reg);
   1298 			return -EINVAL;
   1299 		}
   1300 		track->db_offset = radeon_get_ib_value(p, idx) << 8;
   1301 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1302 		track->db_bo = reloc->robj;
   1303 		track->db_bo_mc = reloc->gpu_offset;
   1304 		track->db_dirty = true;
   1305 		break;
   1306 	case DB_HTILE_DATA_BASE:
   1307 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1308 		if (r) {
   1309 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1310 					"0x%04X\n", reg);
   1311 			return -EINVAL;
   1312 		}
   1313 		track->htile_offset = radeon_get_ib_value(p, idx) << 8;
   1314 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1315 		track->htile_bo = reloc->robj;
   1316 		track->db_dirty = true;
   1317 		break;
   1318 	case DB_HTILE_SURFACE:
   1319 		track->htile_surface = radeon_get_ib_value(p, idx);
   1320 		/* force 8x8 htile width and height */
   1321 		ib[idx] |= 3;
   1322 		track->db_dirty = true;
   1323 		break;
   1324 	case SQ_PGM_START_FS:
   1325 	case SQ_PGM_START_ES:
   1326 	case SQ_PGM_START_VS:
   1327 	case SQ_PGM_START_GS:
   1328 	case SQ_PGM_START_PS:
   1329 	case SQ_ALU_CONST_CACHE_GS_0:
   1330 	case SQ_ALU_CONST_CACHE_GS_1:
   1331 	case SQ_ALU_CONST_CACHE_GS_2:
   1332 	case SQ_ALU_CONST_CACHE_GS_3:
   1333 	case SQ_ALU_CONST_CACHE_GS_4:
   1334 	case SQ_ALU_CONST_CACHE_GS_5:
   1335 	case SQ_ALU_CONST_CACHE_GS_6:
   1336 	case SQ_ALU_CONST_CACHE_GS_7:
   1337 	case SQ_ALU_CONST_CACHE_GS_8:
   1338 	case SQ_ALU_CONST_CACHE_GS_9:
   1339 	case SQ_ALU_CONST_CACHE_GS_10:
   1340 	case SQ_ALU_CONST_CACHE_GS_11:
   1341 	case SQ_ALU_CONST_CACHE_GS_12:
   1342 	case SQ_ALU_CONST_CACHE_GS_13:
   1343 	case SQ_ALU_CONST_CACHE_GS_14:
   1344 	case SQ_ALU_CONST_CACHE_GS_15:
   1345 	case SQ_ALU_CONST_CACHE_PS_0:
   1346 	case SQ_ALU_CONST_CACHE_PS_1:
   1347 	case SQ_ALU_CONST_CACHE_PS_2:
   1348 	case SQ_ALU_CONST_CACHE_PS_3:
   1349 	case SQ_ALU_CONST_CACHE_PS_4:
   1350 	case SQ_ALU_CONST_CACHE_PS_5:
   1351 	case SQ_ALU_CONST_CACHE_PS_6:
   1352 	case SQ_ALU_CONST_CACHE_PS_7:
   1353 	case SQ_ALU_CONST_CACHE_PS_8:
   1354 	case SQ_ALU_CONST_CACHE_PS_9:
   1355 	case SQ_ALU_CONST_CACHE_PS_10:
   1356 	case SQ_ALU_CONST_CACHE_PS_11:
   1357 	case SQ_ALU_CONST_CACHE_PS_12:
   1358 	case SQ_ALU_CONST_CACHE_PS_13:
   1359 	case SQ_ALU_CONST_CACHE_PS_14:
   1360 	case SQ_ALU_CONST_CACHE_PS_15:
   1361 	case SQ_ALU_CONST_CACHE_VS_0:
   1362 	case SQ_ALU_CONST_CACHE_VS_1:
   1363 	case SQ_ALU_CONST_CACHE_VS_2:
   1364 	case SQ_ALU_CONST_CACHE_VS_3:
   1365 	case SQ_ALU_CONST_CACHE_VS_4:
   1366 	case SQ_ALU_CONST_CACHE_VS_5:
   1367 	case SQ_ALU_CONST_CACHE_VS_6:
   1368 	case SQ_ALU_CONST_CACHE_VS_7:
   1369 	case SQ_ALU_CONST_CACHE_VS_8:
   1370 	case SQ_ALU_CONST_CACHE_VS_9:
   1371 	case SQ_ALU_CONST_CACHE_VS_10:
   1372 	case SQ_ALU_CONST_CACHE_VS_11:
   1373 	case SQ_ALU_CONST_CACHE_VS_12:
   1374 	case SQ_ALU_CONST_CACHE_VS_13:
   1375 	case SQ_ALU_CONST_CACHE_VS_14:
   1376 	case SQ_ALU_CONST_CACHE_VS_15:
   1377 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1378 		if (r) {
   1379 			dev_warn(p->dev, "bad SET_CONTEXT_REG "
   1380 					"0x%04X\n", reg);
   1381 			return -EINVAL;
   1382 		}
   1383 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1384 		break;
   1385 	case SX_MEMORY_EXPORT_BASE:
   1386 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1387 		if (r) {
   1388 			dev_warn(p->dev, "bad SET_CONFIG_REG "
   1389 					"0x%04X\n", reg);
   1390 			return -EINVAL;
   1391 		}
   1392 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1393 		break;
   1394 	case SX_MISC:
   1395 		track->sx_misc_kill_all_prims = (radeon_get_ib_value(p, idx) & 0x1) != 0;
   1396 		break;
   1397 	default:
   1398 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
   1399 		return -EINVAL;
   1400 	}
   1401 	return 0;
   1402 }
   1403 
   1404 unsigned r600_mip_minify(unsigned size, unsigned level)
   1405 {
   1406 	unsigned val;
   1407 
   1408 	val = max(1U, size >> level);
   1409 	if (level > 0)
   1410 		val = roundup_pow_of_two(val);
   1411 	return val;
   1412 }
   1413 
   1414 static void r600_texture_size(unsigned nfaces, unsigned blevel, unsigned llevel,
   1415 			      unsigned w0, unsigned h0, unsigned d0, unsigned nsamples, unsigned format,
   1416 			      unsigned block_align, unsigned height_align, unsigned base_align,
   1417 			      unsigned *l0_size, unsigned *mipmap_size)
   1418 {
   1419 	unsigned offset, i, level;
   1420 	unsigned width, height, depth, size;
   1421 	unsigned blocksize;
   1422 	unsigned nbx, nby;
   1423 	unsigned nlevels = llevel - blevel + 1;
   1424 
   1425 	*l0_size = -1;
   1426 	blocksize = r600_fmt_get_blocksize(format);
   1427 
   1428 	w0 = r600_mip_minify(w0, 0);
   1429 	h0 = r600_mip_minify(h0, 0);
   1430 	d0 = r600_mip_minify(d0, 0);
   1431 	for(i = 0, offset = 0, level = blevel; i < nlevels; i++, level++) {
   1432 		width = r600_mip_minify(w0, i);
   1433 		nbx = r600_fmt_get_nblocksx(format, width);
   1434 
   1435 		nbx = round_up(nbx, block_align);
   1436 
   1437 		height = r600_mip_minify(h0, i);
   1438 		nby = r600_fmt_get_nblocksy(format, height);
   1439 		nby = round_up(nby, height_align);
   1440 
   1441 		depth = r600_mip_minify(d0, i);
   1442 
   1443 		size = nbx * nby * blocksize * nsamples;
   1444 		if (nfaces)
   1445 			size *= nfaces;
   1446 		else
   1447 			size *= depth;
   1448 
   1449 		if (i == 0)
   1450 			*l0_size = size;
   1451 
   1452 		if (i == 0 || i == 1)
   1453 			offset = round_up(offset, base_align);
   1454 
   1455 		offset += size;
   1456 	}
   1457 	*mipmap_size = offset;
   1458 	if (llevel == 0)
   1459 		*mipmap_size = *l0_size;
   1460 	if (!blevel)
   1461 		*mipmap_size -= *l0_size;
   1462 }
   1463 
   1464 /**
   1465  * r600_check_texture_resource() - check if register is authorized or not
   1466  * @p: parser structure holding parsing context
   1467  * @idx: index into the cs buffer
   1468  * @texture: texture's bo structure
   1469  * @mipmap: mipmap's bo structure
   1470  *
   1471  * This function will check that the resource has valid field and that
   1472  * the texture and mipmap bo object are big enough to cover this resource.
   1473  */
   1474 static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
   1475 					      struct radeon_bo *texture,
   1476 					      struct radeon_bo *mipmap,
   1477 					      u64 base_offset,
   1478 					      u64 mip_offset,
   1479 					      u32 tiling_flags)
   1480 {
   1481 	struct r600_cs_track *track = p->track;
   1482 	u32 dim, nfaces, llevel, blevel, w0, h0, d0;
   1483 	u32 word0, word1, l0_size, mipmap_size, word2, word3, word4, word5;
   1484 	u32 height_align, pitch, pitch_align, depth_align;
   1485 	u32 barray, larray;
   1486 	u64 base_align;
   1487 	struct array_mode_checker array_check;
   1488 	u32 format;
   1489 	bool is_array;
   1490 
   1491 	/* on legacy kernel we don't perform advanced check */
   1492 	if (p->rdev == NULL)
   1493 		return 0;
   1494 
   1495 	/* convert to bytes */
   1496 	base_offset <<= 8;
   1497 	mip_offset <<= 8;
   1498 
   1499 	word0 = radeon_get_ib_value(p, idx + 0);
   1500 	if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
   1501 		if (tiling_flags & RADEON_TILING_MACRO)
   1502 			word0 |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
   1503 		else if (tiling_flags & RADEON_TILING_MICRO)
   1504 			word0 |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
   1505 	}
   1506 	word1 = radeon_get_ib_value(p, idx + 1);
   1507 	word2 = radeon_get_ib_value(p, idx + 2) << 8;
   1508 	word3 = radeon_get_ib_value(p, idx + 3) << 8;
   1509 	word4 = radeon_get_ib_value(p, idx + 4);
   1510 	word5 = radeon_get_ib_value(p, idx + 5);
   1511 	dim = G_038000_DIM(word0);
   1512 	w0 = G_038000_TEX_WIDTH(word0) + 1;
   1513 	pitch = (G_038000_PITCH(word0) + 1) * 8;
   1514 	h0 = G_038004_TEX_HEIGHT(word1) + 1;
   1515 	d0 = G_038004_TEX_DEPTH(word1);
   1516 	format = G_038004_DATA_FORMAT(word1);
   1517 	blevel = G_038010_BASE_LEVEL(word4);
   1518 	llevel = G_038014_LAST_LEVEL(word5);
   1519 	/* pitch in texels */
   1520 	array_check.array_mode = G_038000_TILE_MODE(word0);
   1521 	array_check.group_size = track->group_size;
   1522 	array_check.nbanks = track->nbanks;
   1523 	array_check.npipes = track->npipes;
   1524 	array_check.nsamples = 1;
   1525 	array_check.blocksize = r600_fmt_get_blocksize(format);
   1526 	nfaces = 1;
   1527 	is_array = false;
   1528 	switch (dim) {
   1529 	case V_038000_SQ_TEX_DIM_1D:
   1530 	case V_038000_SQ_TEX_DIM_2D:
   1531 	case V_038000_SQ_TEX_DIM_3D:
   1532 		break;
   1533 	case V_038000_SQ_TEX_DIM_CUBEMAP:
   1534 		if (p->family >= CHIP_RV770)
   1535 			nfaces = 8;
   1536 		else
   1537 			nfaces = 6;
   1538 		break;
   1539 	case V_038000_SQ_TEX_DIM_1D_ARRAY:
   1540 	case V_038000_SQ_TEX_DIM_2D_ARRAY:
   1541 		is_array = true;
   1542 		break;
   1543 	case V_038000_SQ_TEX_DIM_2D_ARRAY_MSAA:
   1544 		is_array = true;
   1545 		/* fall through */
   1546 	case V_038000_SQ_TEX_DIM_2D_MSAA:
   1547 		array_check.nsamples = 1 << llevel;
   1548 		llevel = 0;
   1549 		break;
   1550 	default:
   1551 		dev_warn(p->dev, "this kernel doesn't support %d texture dim\n", G_038000_DIM(word0));
   1552 		return -EINVAL;
   1553 	}
   1554 	if (!r600_fmt_is_valid_texture(format, p->family)) {
   1555 		dev_warn(p->dev, "%s:%d texture invalid format %d\n",
   1556 			 __func__, __LINE__, format);
   1557 		return -EINVAL;
   1558 	}
   1559 
   1560 	if (r600_get_array_mode_alignment(&array_check,
   1561 					  &pitch_align, &height_align, &depth_align, &base_align)) {
   1562 		dev_warn(p->dev, "%s:%d tex array mode (%d) invalid\n",
   1563 			 __func__, __LINE__, G_038000_TILE_MODE(word0));
   1564 		return -EINVAL;
   1565 	}
   1566 
   1567 	/* XXX check height as well... */
   1568 
   1569 	if (!IS_ALIGNED(pitch, pitch_align)) {
   1570 		dev_warn(p->dev, "%s:%d tex pitch (%d, 0x%x, %d) invalid\n",
   1571 			 __func__, __LINE__, pitch, pitch_align, G_038000_TILE_MODE(word0));
   1572 		return -EINVAL;
   1573 	}
   1574 	if (!IS_ALIGNED(base_offset, base_align)) {
   1575 		dev_warn(p->dev, "%s:%d tex base offset (0x%"PRIx64", 0x%"PRIx64", %d) invalid\n",
   1576 			 __func__, __LINE__, base_offset, base_align, G_038000_TILE_MODE(word0));
   1577 		return -EINVAL;
   1578 	}
   1579 	if (!IS_ALIGNED(mip_offset, base_align)) {
   1580 		dev_warn(p->dev, "%s:%d tex mip offset (0x%"PRIx64", 0x%"PRIx64", %d) invalid\n",
   1581 			 __func__, __LINE__, mip_offset, base_align, G_038000_TILE_MODE(word0));
   1582 		return -EINVAL;
   1583 	}
   1584 
   1585 	if (blevel > llevel) {
   1586 		dev_warn(p->dev, "texture blevel %d > llevel %d\n",
   1587 			 blevel, llevel);
   1588 	}
   1589 	if (is_array) {
   1590 		barray = G_038014_BASE_ARRAY(word5);
   1591 		larray = G_038014_LAST_ARRAY(word5);
   1592 
   1593 		nfaces = larray - barray + 1;
   1594 	}
   1595 	r600_texture_size(nfaces, blevel, llevel, w0, h0, d0, array_check.nsamples, format,
   1596 			  pitch_align, height_align, base_align,
   1597 			  &l0_size, &mipmap_size);
   1598 	/* using get ib will give us the offset into the texture bo */
   1599 	if ((l0_size + word2) > radeon_bo_size(texture)) {
   1600 		dev_warn(p->dev, "texture bo too small ((%d %d) (%d %d) %d %d %d -> %d have %ld)\n",
   1601 			 w0, h0, pitch_align, height_align,
   1602 			 array_check.array_mode, format, word2,
   1603 			 l0_size, radeon_bo_size(texture));
   1604 		dev_warn(p->dev, "alignments %d %d %d %"PRIu64"\n", pitch, pitch_align, height_align, base_align);
   1605 		return -EINVAL;
   1606 	}
   1607 	/* using get ib will give us the offset into the mipmap bo */
   1608 	if ((mipmap_size + word3) > radeon_bo_size(mipmap)) {
   1609 		/*dev_warn(p->dev, "mipmap bo too small (%d %d %d %d %d %d -> %d have %ld)\n",
   1610 		  w0, h0, format, blevel, nlevels, word3, mipmap_size, radeon_bo_size(texture));*/
   1611 	}
   1612 	return 0;
   1613 }
   1614 
   1615 static bool r600_is_safe_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
   1616 {
   1617 	u32 m, i;
   1618 
   1619 	i = (reg >> 7);
   1620 	if (i >= ARRAY_SIZE(r600_reg_safe_bm)) {
   1621 		dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
   1622 		return false;
   1623 	}
   1624 	m = 1 << ((reg >> 2) & 31);
   1625 	if (!(r600_reg_safe_bm[i] & m))
   1626 		return true;
   1627 	dev_warn(p->dev, "forbidden register 0x%08x at %d\n", reg, idx);
   1628 	return false;
   1629 }
   1630 
   1631 static int r600_packet3_check(struct radeon_cs_parser *p,
   1632 				struct radeon_cs_packet *pkt)
   1633 {
   1634 	struct radeon_bo_list *reloc;
   1635 	struct r600_cs_track *track;
   1636 	volatile u32 *ib;
   1637 	unsigned idx;
   1638 	unsigned i;
   1639 	unsigned start_reg, end_reg, reg;
   1640 	int r;
   1641 	u32 idx_value;
   1642 
   1643 	track = (struct r600_cs_track *)p->track;
   1644 	ib = p->ib.ptr;
   1645 	idx = pkt->idx + 1;
   1646 	idx_value = radeon_get_ib_value(p, idx);
   1647 
   1648 	switch (pkt->opcode) {
   1649 	case PACKET3_SET_PREDICATION:
   1650 	{
   1651 		int pred_op;
   1652 		int tmp;
   1653 		uint64_t offset;
   1654 
   1655 		if (pkt->count != 1) {
   1656 			DRM_ERROR("bad SET PREDICATION\n");
   1657 			return -EINVAL;
   1658 		}
   1659 
   1660 		tmp = radeon_get_ib_value(p, idx + 1);
   1661 		pred_op = (tmp >> 16) & 0x7;
   1662 
   1663 		/* for the clear predicate operation */
   1664 		if (pred_op == 0)
   1665 			return 0;
   1666 
   1667 		if (pred_op > 2) {
   1668 			DRM_ERROR("bad SET PREDICATION operation %d\n", pred_op);
   1669 			return -EINVAL;
   1670 		}
   1671 
   1672 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1673 		if (r) {
   1674 			DRM_ERROR("bad SET PREDICATION\n");
   1675 			return -EINVAL;
   1676 		}
   1677 
   1678 		offset = reloc->gpu_offset +
   1679 		         (idx_value & 0xfffffff0) +
   1680 		         ((u64)(tmp & 0xff) << 32);
   1681 
   1682 		ib[idx + 0] = offset;
   1683 		ib[idx + 1] = (tmp & 0xffffff00) | (upper_32_bits(offset) & 0xff);
   1684 	}
   1685 	break;
   1686 
   1687 	case PACKET3_START_3D_CMDBUF:
   1688 		if (p->family >= CHIP_RV770 || pkt->count) {
   1689 			DRM_ERROR("bad START_3D\n");
   1690 			return -EINVAL;
   1691 		}
   1692 		break;
   1693 	case PACKET3_CONTEXT_CONTROL:
   1694 		if (pkt->count != 1) {
   1695 			DRM_ERROR("bad CONTEXT_CONTROL\n");
   1696 			return -EINVAL;
   1697 		}
   1698 		break;
   1699 	case PACKET3_INDEX_TYPE:
   1700 	case PACKET3_NUM_INSTANCES:
   1701 		if (pkt->count) {
   1702 			DRM_ERROR("bad INDEX_TYPE/NUM_INSTANCES\n");
   1703 			return -EINVAL;
   1704 		}
   1705 		break;
   1706 	case PACKET3_DRAW_INDEX:
   1707 	{
   1708 		uint64_t offset;
   1709 		if (pkt->count != 3) {
   1710 			DRM_ERROR("bad DRAW_INDEX\n");
   1711 			return -EINVAL;
   1712 		}
   1713 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1714 		if (r) {
   1715 			DRM_ERROR("bad DRAW_INDEX\n");
   1716 			return -EINVAL;
   1717 		}
   1718 
   1719 		offset = reloc->gpu_offset +
   1720 		         idx_value +
   1721 		         ((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
   1722 
   1723 		ib[idx+0] = offset;
   1724 		ib[idx+1] = upper_32_bits(offset) & 0xff;
   1725 
   1726 		r = r600_cs_track_check(p);
   1727 		if (r) {
   1728 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
   1729 			return r;
   1730 		}
   1731 		break;
   1732 	}
   1733 	case PACKET3_DRAW_INDEX_AUTO:
   1734 		if (pkt->count != 1) {
   1735 			DRM_ERROR("bad DRAW_INDEX_AUTO\n");
   1736 			return -EINVAL;
   1737 		}
   1738 		r = r600_cs_track_check(p);
   1739 		if (r) {
   1740 			dev_warn(p->dev, "%s:%d invalid cmd stream %d\n", __func__, __LINE__, idx);
   1741 			return r;
   1742 		}
   1743 		break;
   1744 	case PACKET3_DRAW_INDEX_IMMD_BE:
   1745 	case PACKET3_DRAW_INDEX_IMMD:
   1746 		if (pkt->count < 2) {
   1747 			DRM_ERROR("bad DRAW_INDEX_IMMD\n");
   1748 			return -EINVAL;
   1749 		}
   1750 		r = r600_cs_track_check(p);
   1751 		if (r) {
   1752 			dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__);
   1753 			return r;
   1754 		}
   1755 		break;
   1756 	case PACKET3_WAIT_REG_MEM:
   1757 		if (pkt->count != 5) {
   1758 			DRM_ERROR("bad WAIT_REG_MEM\n");
   1759 			return -EINVAL;
   1760 		}
   1761 		/* bit 4 is reg (0) or mem (1) */
   1762 		if (idx_value & 0x10) {
   1763 			uint64_t offset;
   1764 
   1765 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1766 			if (r) {
   1767 				DRM_ERROR("bad WAIT_REG_MEM\n");
   1768 				return -EINVAL;
   1769 			}
   1770 
   1771 			offset = reloc->gpu_offset +
   1772 			         (radeon_get_ib_value(p, idx+1) & 0xfffffff0) +
   1773 			         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
   1774 
   1775 			ib[idx+1] = (ib[idx+1] & 0x3) | (offset & 0xfffffff0);
   1776 			ib[idx+2] = upper_32_bits(offset) & 0xff;
   1777 		} else if (idx_value & 0x100) {
   1778 			DRM_ERROR("cannot use PFP on REG wait\n");
   1779 			return -EINVAL;
   1780 		}
   1781 		break;
   1782 	case PACKET3_CP_DMA:
   1783 	{
   1784 		u32 command, size;
   1785 		u64 offset, tmp;
   1786 		if (pkt->count != 4) {
   1787 			DRM_ERROR("bad CP DMA\n");
   1788 			return -EINVAL;
   1789 		}
   1790 		command = radeon_get_ib_value(p, idx+4);
   1791 		size = command & 0x1fffff;
   1792 		if (command & PACKET3_CP_DMA_CMD_SAS) {
   1793 			/* src address space is register */
   1794 			DRM_ERROR("CP DMA SAS not supported\n");
   1795 			return -EINVAL;
   1796 		} else {
   1797 			if (command & PACKET3_CP_DMA_CMD_SAIC) {
   1798 				DRM_ERROR("CP DMA SAIC only supported for registers\n");
   1799 				return -EINVAL;
   1800 			}
   1801 			/* src address space is memory */
   1802 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1803 			if (r) {
   1804 				DRM_ERROR("bad CP DMA SRC\n");
   1805 				return -EINVAL;
   1806 			}
   1807 
   1808 			tmp = radeon_get_ib_value(p, idx) +
   1809 				((u64)(radeon_get_ib_value(p, idx+1) & 0xff) << 32);
   1810 
   1811 			offset = reloc->gpu_offset + tmp;
   1812 
   1813 			if ((tmp + size) > radeon_bo_size(reloc->robj)) {
   1814 				dev_warn(p->dev, "CP DMA src buffer too small (%"PRIu64" %lu)\n",
   1815 					 tmp + size, radeon_bo_size(reloc->robj));
   1816 				return -EINVAL;
   1817 			}
   1818 
   1819 			ib[idx] = offset;
   1820 			ib[idx+1] = (ib[idx+1] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
   1821 		}
   1822 		if (command & PACKET3_CP_DMA_CMD_DAS) {
   1823 			/* dst address space is register */
   1824 			DRM_ERROR("CP DMA DAS not supported\n");
   1825 			return -EINVAL;
   1826 		} else {
   1827 			/* dst address space is memory */
   1828 			if (command & PACKET3_CP_DMA_CMD_DAIC) {
   1829 				DRM_ERROR("CP DMA DAIC only supported for registers\n");
   1830 				return -EINVAL;
   1831 			}
   1832 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1833 			if (r) {
   1834 				DRM_ERROR("bad CP DMA DST\n");
   1835 				return -EINVAL;
   1836 			}
   1837 
   1838 			tmp = radeon_get_ib_value(p, idx+2) +
   1839 				((u64)(radeon_get_ib_value(p, idx+3) & 0xff) << 32);
   1840 
   1841 			offset = reloc->gpu_offset + tmp;
   1842 
   1843 			if ((tmp + size) > radeon_bo_size(reloc->robj)) {
   1844 				dev_warn(p->dev, "CP DMA dst buffer too small (%"PRIu64" %lu)\n",
   1845 					 tmp + size, radeon_bo_size(reloc->robj));
   1846 				return -EINVAL;
   1847 			}
   1848 
   1849 			ib[idx+2] = offset;
   1850 			ib[idx+3] = upper_32_bits(offset) & 0xff;
   1851 		}
   1852 		break;
   1853 	}
   1854 	case PACKET3_SURFACE_SYNC:
   1855 		if (pkt->count != 3) {
   1856 			DRM_ERROR("bad SURFACE_SYNC\n");
   1857 			return -EINVAL;
   1858 		}
   1859 		/* 0xffffffff/0x0 is flush all cache flag */
   1860 		if (radeon_get_ib_value(p, idx + 1) != 0xffffffff ||
   1861 		    radeon_get_ib_value(p, idx + 2) != 0) {
   1862 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1863 			if (r) {
   1864 				DRM_ERROR("bad SURFACE_SYNC\n");
   1865 				return -EINVAL;
   1866 			}
   1867 			ib[idx+2] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1868 		}
   1869 		break;
   1870 	case PACKET3_EVENT_WRITE:
   1871 		if (pkt->count != 2 && pkt->count != 0) {
   1872 			DRM_ERROR("bad EVENT_WRITE\n");
   1873 			return -EINVAL;
   1874 		}
   1875 		if (pkt->count) {
   1876 			uint64_t offset;
   1877 
   1878 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1879 			if (r) {
   1880 				DRM_ERROR("bad EVENT_WRITE\n");
   1881 				return -EINVAL;
   1882 			}
   1883 			offset = reloc->gpu_offset +
   1884 			         (radeon_get_ib_value(p, idx+1) & 0xfffffff8) +
   1885 			         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
   1886 
   1887 			ib[idx+1] = offset & 0xfffffff8;
   1888 			ib[idx+2] = upper_32_bits(offset) & 0xff;
   1889 		}
   1890 		break;
   1891 	case PACKET3_EVENT_WRITE_EOP:
   1892 	{
   1893 		uint64_t offset;
   1894 
   1895 		if (pkt->count != 4) {
   1896 			DRM_ERROR("bad EVENT_WRITE_EOP\n");
   1897 			return -EINVAL;
   1898 		}
   1899 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1900 		if (r) {
   1901 			DRM_ERROR("bad EVENT_WRITE\n");
   1902 			return -EINVAL;
   1903 		}
   1904 
   1905 		offset = reloc->gpu_offset +
   1906 		         (radeon_get_ib_value(p, idx+1) & 0xfffffffc) +
   1907 		         ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32);
   1908 
   1909 		ib[idx+1] = offset & 0xfffffffc;
   1910 		ib[idx+2] = (ib[idx+2] & 0xffffff00) | (upper_32_bits(offset) & 0xff);
   1911 		break;
   1912 	}
   1913 	case PACKET3_SET_CONFIG_REG:
   1914 		start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_OFFSET;
   1915 		end_reg = 4 * pkt->count + start_reg - 4;
   1916 		if ((start_reg < PACKET3_SET_CONFIG_REG_OFFSET) ||
   1917 		    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
   1918 		    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
   1919 			DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
   1920 			return -EINVAL;
   1921 		}
   1922 		for (i = 0; i < pkt->count; i++) {
   1923 			reg = start_reg + (4 * i);
   1924 			r = r600_cs_check_reg(p, reg, idx+1+i);
   1925 			if (r)
   1926 				return r;
   1927 		}
   1928 		break;
   1929 	case PACKET3_SET_CONTEXT_REG:
   1930 		start_reg = (idx_value << 2) + PACKET3_SET_CONTEXT_REG_OFFSET;
   1931 		end_reg = 4 * pkt->count + start_reg - 4;
   1932 		if ((start_reg < PACKET3_SET_CONTEXT_REG_OFFSET) ||
   1933 		    (start_reg >= PACKET3_SET_CONTEXT_REG_END) ||
   1934 		    (end_reg >= PACKET3_SET_CONTEXT_REG_END)) {
   1935 			DRM_ERROR("bad PACKET3_SET_CONTEXT_REG\n");
   1936 			return -EINVAL;
   1937 		}
   1938 		for (i = 0; i < pkt->count; i++) {
   1939 			reg = start_reg + (4 * i);
   1940 			r = r600_cs_check_reg(p, reg, idx+1+i);
   1941 			if (r)
   1942 				return r;
   1943 		}
   1944 		break;
   1945 	case PACKET3_SET_RESOURCE:
   1946 		if (pkt->count % 7) {
   1947 			DRM_ERROR("bad SET_RESOURCE\n");
   1948 			return -EINVAL;
   1949 		}
   1950 		start_reg = (idx_value << 2) + PACKET3_SET_RESOURCE_OFFSET;
   1951 		end_reg = 4 * pkt->count + start_reg - 4;
   1952 		if ((start_reg < PACKET3_SET_RESOURCE_OFFSET) ||
   1953 		    (start_reg >= PACKET3_SET_RESOURCE_END) ||
   1954 		    (end_reg >= PACKET3_SET_RESOURCE_END)) {
   1955 			DRM_ERROR("bad SET_RESOURCE\n");
   1956 			return -EINVAL;
   1957 		}
   1958 		for (i = 0; i < (pkt->count / 7); i++) {
   1959 			struct radeon_bo *texture, *mipmap;
   1960 			u32 size, offset, base_offset, mip_offset;
   1961 
   1962 			switch (G__SQ_VTX_CONSTANT_TYPE(radeon_get_ib_value(p, idx+(i*7)+6+1))) {
   1963 			case SQ_TEX_VTX_VALID_TEXTURE:
   1964 				/* tex base */
   1965 				r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1966 				if (r) {
   1967 					DRM_ERROR("bad SET_RESOURCE\n");
   1968 					return -EINVAL;
   1969 				}
   1970 				base_offset = (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1971 				if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
   1972 					if (reloc->tiling_flags & RADEON_TILING_MACRO)
   1973 						ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
   1974 					else if (reloc->tiling_flags & RADEON_TILING_MICRO)
   1975 						ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
   1976 				}
   1977 				texture = reloc->robj;
   1978 				/* tex mip base */
   1979 				r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   1980 				if (r) {
   1981 					DRM_ERROR("bad SET_RESOURCE\n");
   1982 					return -EINVAL;
   1983 				}
   1984 				mip_offset = (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   1985 				mipmap = reloc->robj;
   1986 				r = r600_check_texture_resource(p,  idx+(i*7)+1,
   1987 								texture, mipmap,
   1988 								base_offset + radeon_get_ib_value(p, idx+1+(i*7)+2),
   1989 								mip_offset + radeon_get_ib_value(p, idx+1+(i*7)+3),
   1990 								reloc->tiling_flags);
   1991 				if (r)
   1992 					return r;
   1993 				ib[idx+1+(i*7)+2] += base_offset;
   1994 				ib[idx+1+(i*7)+3] += mip_offset;
   1995 				break;
   1996 			case SQ_TEX_VTX_VALID_BUFFER:
   1997 			{
   1998 				uint64_t offset64;
   1999 				/* vtx base */
   2000 				r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2001 				if (r) {
   2002 					DRM_ERROR("bad SET_RESOURCE\n");
   2003 					return -EINVAL;
   2004 				}
   2005 				offset = radeon_get_ib_value(p, idx+1+(i*7)+0);
   2006 				size = radeon_get_ib_value(p, idx+1+(i*7)+1) + 1;
   2007 				if (p->rdev && (size + offset) > radeon_bo_size(reloc->robj)) {
   2008 					/* force size to size of the buffer */
   2009 					dev_warn(p->dev, "vbo resource seems too big (%d) for the bo (%ld)\n",
   2010 						 size + offset, radeon_bo_size(reloc->robj));
   2011 					ib[idx+1+(i*7)+1] = radeon_bo_size(reloc->robj) - offset;
   2012 				}
   2013 
   2014 				offset64 = reloc->gpu_offset + offset;
   2015 				ib[idx+1+(i*8)+0] = offset64;
   2016 				ib[idx+1+(i*8)+2] = (ib[idx+1+(i*8)+2] & 0xffffff00) |
   2017 						    (upper_32_bits(offset64) & 0xff);
   2018 				break;
   2019 			}
   2020 			case SQ_TEX_VTX_INVALID_TEXTURE:
   2021 			case SQ_TEX_VTX_INVALID_BUFFER:
   2022 			default:
   2023 				DRM_ERROR("bad SET_RESOURCE\n");
   2024 				return -EINVAL;
   2025 			}
   2026 		}
   2027 		break;
   2028 	case PACKET3_SET_ALU_CONST:
   2029 		if (track->sq_config & DX9_CONSTS) {
   2030 			start_reg = (idx_value << 2) + PACKET3_SET_ALU_CONST_OFFSET;
   2031 			end_reg = 4 * pkt->count + start_reg - 4;
   2032 			if ((start_reg < PACKET3_SET_ALU_CONST_OFFSET) ||
   2033 			    (start_reg >= PACKET3_SET_ALU_CONST_END) ||
   2034 			    (end_reg >= PACKET3_SET_ALU_CONST_END)) {
   2035 				DRM_ERROR("bad SET_ALU_CONST\n");
   2036 				return -EINVAL;
   2037 			}
   2038 		}
   2039 		break;
   2040 	case PACKET3_SET_BOOL_CONST:
   2041 		start_reg = (idx_value << 2) + PACKET3_SET_BOOL_CONST_OFFSET;
   2042 		end_reg = 4 * pkt->count + start_reg - 4;
   2043 		if ((start_reg < PACKET3_SET_BOOL_CONST_OFFSET) ||
   2044 		    (start_reg >= PACKET3_SET_BOOL_CONST_END) ||
   2045 		    (end_reg >= PACKET3_SET_BOOL_CONST_END)) {
   2046 			DRM_ERROR("bad SET_BOOL_CONST\n");
   2047 			return -EINVAL;
   2048 		}
   2049 		break;
   2050 	case PACKET3_SET_LOOP_CONST:
   2051 		start_reg = (idx_value << 2) + PACKET3_SET_LOOP_CONST_OFFSET;
   2052 		end_reg = 4 * pkt->count + start_reg - 4;
   2053 		if ((start_reg < PACKET3_SET_LOOP_CONST_OFFSET) ||
   2054 		    (start_reg >= PACKET3_SET_LOOP_CONST_END) ||
   2055 		    (end_reg >= PACKET3_SET_LOOP_CONST_END)) {
   2056 			DRM_ERROR("bad SET_LOOP_CONST\n");
   2057 			return -EINVAL;
   2058 		}
   2059 		break;
   2060 	case PACKET3_SET_CTL_CONST:
   2061 		start_reg = (idx_value << 2) + PACKET3_SET_CTL_CONST_OFFSET;
   2062 		end_reg = 4 * pkt->count + start_reg - 4;
   2063 		if ((start_reg < PACKET3_SET_CTL_CONST_OFFSET) ||
   2064 		    (start_reg >= PACKET3_SET_CTL_CONST_END) ||
   2065 		    (end_reg >= PACKET3_SET_CTL_CONST_END)) {
   2066 			DRM_ERROR("bad SET_CTL_CONST\n");
   2067 			return -EINVAL;
   2068 		}
   2069 		break;
   2070 	case PACKET3_SET_SAMPLER:
   2071 		if (pkt->count % 3) {
   2072 			DRM_ERROR("bad SET_SAMPLER\n");
   2073 			return -EINVAL;
   2074 		}
   2075 		start_reg = (idx_value << 2) + PACKET3_SET_SAMPLER_OFFSET;
   2076 		end_reg = 4 * pkt->count + start_reg - 4;
   2077 		if ((start_reg < PACKET3_SET_SAMPLER_OFFSET) ||
   2078 		    (start_reg >= PACKET3_SET_SAMPLER_END) ||
   2079 		    (end_reg >= PACKET3_SET_SAMPLER_END)) {
   2080 			DRM_ERROR("bad SET_SAMPLER\n");
   2081 			return -EINVAL;
   2082 		}
   2083 		break;
   2084 	case PACKET3_STRMOUT_BASE_UPDATE:
   2085 		/* RS780 and RS880 also need this */
   2086 		if (p->family < CHIP_RS780) {
   2087 			DRM_ERROR("STRMOUT_BASE_UPDATE only supported on 7xx\n");
   2088 			return -EINVAL;
   2089 		}
   2090 		if (pkt->count != 1) {
   2091 			DRM_ERROR("bad STRMOUT_BASE_UPDATE packet count\n");
   2092 			return -EINVAL;
   2093 		}
   2094 		if (idx_value > 3) {
   2095 			DRM_ERROR("bad STRMOUT_BASE_UPDATE index\n");
   2096 			return -EINVAL;
   2097 		}
   2098 		{
   2099 			u64 offset;
   2100 
   2101 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2102 			if (r) {
   2103 				DRM_ERROR("bad STRMOUT_BASE_UPDATE reloc\n");
   2104 				return -EINVAL;
   2105 			}
   2106 
   2107 			if (reloc->robj != track->vgt_strmout_bo[idx_value]) {
   2108 				DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo does not match\n");
   2109 				return -EINVAL;
   2110 			}
   2111 
   2112 			offset = radeon_get_ib_value(p, idx+1) << 8;
   2113 			if (offset != track->vgt_strmout_bo_offset[idx_value]) {
   2114 				DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo offset does not match: 0x%"PRIx64", 0x%x\n",
   2115 					  offset, track->vgt_strmout_bo_offset[idx_value]);
   2116 				return -EINVAL;
   2117 			}
   2118 
   2119 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
   2120 				DRM_ERROR("bad STRMOUT_BASE_UPDATE bo too small: 0x%"PRIx64", 0x%lx\n",
   2121 					  offset + 4, radeon_bo_size(reloc->robj));
   2122 				return -EINVAL;
   2123 			}
   2124 			ib[idx+1] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
   2125 		}
   2126 		break;
   2127 	case PACKET3_SURFACE_BASE_UPDATE:
   2128 		if (p->family >= CHIP_RV770 || p->family == CHIP_R600) {
   2129 			DRM_ERROR("bad SURFACE_BASE_UPDATE\n");
   2130 			return -EINVAL;
   2131 		}
   2132 		if (pkt->count) {
   2133 			DRM_ERROR("bad SURFACE_BASE_UPDATE\n");
   2134 			return -EINVAL;
   2135 		}
   2136 		break;
   2137 	case PACKET3_STRMOUT_BUFFER_UPDATE:
   2138 		if (pkt->count != 4) {
   2139 			DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (invalid count)\n");
   2140 			return -EINVAL;
   2141 		}
   2142 		/* Updating memory at DST_ADDRESS. */
   2143 		if (idx_value & 0x1) {
   2144 			u64 offset;
   2145 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2146 			if (r) {
   2147 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (missing dst reloc)\n");
   2148 				return -EINVAL;
   2149 			}
   2150 			offset = radeon_get_ib_value(p, idx+1);
   2151 			offset += ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
   2152 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
   2153 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE dst bo too small: 0x%"PRIx64", 0x%lx\n",
   2154 					  offset + 4, radeon_bo_size(reloc->robj));
   2155 				return -EINVAL;
   2156 			}
   2157 			offset += reloc->gpu_offset;
   2158 			ib[idx+1] = offset;
   2159 			ib[idx+2] = upper_32_bits(offset) & 0xff;
   2160 		}
   2161 		/* Reading data from SRC_ADDRESS. */
   2162 		if (((idx_value >> 1) & 0x3) == 2) {
   2163 			u64 offset;
   2164 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2165 			if (r) {
   2166 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE (missing src reloc)\n");
   2167 				return -EINVAL;
   2168 			}
   2169 			offset = radeon_get_ib_value(p, idx+3);
   2170 			offset += ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
   2171 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
   2172 				DRM_ERROR("bad STRMOUT_BUFFER_UPDATE src bo too small: 0x%"PRIx64", 0x%lx\n",
   2173 					  offset + 4, radeon_bo_size(reloc->robj));
   2174 				return -EINVAL;
   2175 			}
   2176 			offset += reloc->gpu_offset;
   2177 			ib[idx+3] = offset;
   2178 			ib[idx+4] = upper_32_bits(offset) & 0xff;
   2179 		}
   2180 		break;
   2181 	case PACKET3_MEM_WRITE:
   2182 	{
   2183 		u64 offset;
   2184 
   2185 		if (pkt->count != 3) {
   2186 			DRM_ERROR("bad MEM_WRITE (invalid count)\n");
   2187 			return -EINVAL;
   2188 		}
   2189 		r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2190 		if (r) {
   2191 			DRM_ERROR("bad MEM_WRITE (missing reloc)\n");
   2192 			return -EINVAL;
   2193 		}
   2194 		offset = radeon_get_ib_value(p, idx+0);
   2195 		offset += ((u64)(radeon_get_ib_value(p, idx+1) & 0xff)) << 32UL;
   2196 		if (offset & 0x7) {
   2197 			DRM_ERROR("bad MEM_WRITE (address not qwords aligned)\n");
   2198 			return -EINVAL;
   2199 		}
   2200 		if ((offset + 8) > radeon_bo_size(reloc->robj)) {
   2201 			DRM_ERROR("bad MEM_WRITE bo too small: 0x%"PRIx64", 0x%lx\n",
   2202 				  offset + 8, radeon_bo_size(reloc->robj));
   2203 			return -EINVAL;
   2204 		}
   2205 		offset += reloc->gpu_offset;
   2206 		ib[idx+0] = offset;
   2207 		ib[idx+1] = upper_32_bits(offset) & 0xff;
   2208 		break;
   2209 	}
   2210 	case PACKET3_COPY_DW:
   2211 		if (pkt->count != 4) {
   2212 			DRM_ERROR("bad COPY_DW (invalid count)\n");
   2213 			return -EINVAL;
   2214 		}
   2215 		if (idx_value & 0x1) {
   2216 			u64 offset;
   2217 			/* SRC is memory. */
   2218 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2219 			if (r) {
   2220 				DRM_ERROR("bad COPY_DW (missing src reloc)\n");
   2221 				return -EINVAL;
   2222 			}
   2223 			offset = radeon_get_ib_value(p, idx+1);
   2224 			offset += ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
   2225 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
   2226 				DRM_ERROR("bad COPY_DW src bo too small: 0x%"PRIx64", 0x%lx\n",
   2227 					  offset + 4, radeon_bo_size(reloc->robj));
   2228 				return -EINVAL;
   2229 			}
   2230 			offset += reloc->gpu_offset;
   2231 			ib[idx+1] = offset;
   2232 			ib[idx+2] = upper_32_bits(offset) & 0xff;
   2233 		} else {
   2234 			/* SRC is a reg. */
   2235 			reg = radeon_get_ib_value(p, idx+1) << 2;
   2236 			if (!r600_is_safe_reg(p, reg, idx+1))
   2237 				return -EINVAL;
   2238 		}
   2239 		if (idx_value & 0x2) {
   2240 			u64 offset;
   2241 			/* DST is memory. */
   2242 			r = radeon_cs_packet_next_reloc(p, &reloc, r600_nomm);
   2243 			if (r) {
   2244 				DRM_ERROR("bad COPY_DW (missing dst reloc)\n");
   2245 				return -EINVAL;
   2246 			}
   2247 			offset = radeon_get_ib_value(p, idx+3);
   2248 			offset += ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
   2249 			if ((offset + 4) > radeon_bo_size(reloc->robj)) {
   2250 				DRM_ERROR("bad COPY_DW dst bo too small: 0x%"PRIx64", 0x%lx\n",
   2251 					  offset + 4, radeon_bo_size(reloc->robj));
   2252 				return -EINVAL;
   2253 			}
   2254 			offset += reloc->gpu_offset;
   2255 			ib[idx+3] = offset;
   2256 			ib[idx+4] = upper_32_bits(offset) & 0xff;
   2257 		} else {
   2258 			/* DST is a reg. */
   2259 			reg = radeon_get_ib_value(p, idx+3) << 2;
   2260 			if (!r600_is_safe_reg(p, reg, idx+3))
   2261 				return -EINVAL;
   2262 		}
   2263 		break;
   2264 	case PACKET3_NOP:
   2265 		break;
   2266 	default:
   2267 		DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
   2268 		return -EINVAL;
   2269 	}
   2270 	return 0;
   2271 }
   2272 
   2273 int r600_cs_parse(struct radeon_cs_parser *p)
   2274 {
   2275 	struct radeon_cs_packet pkt;
   2276 	struct r600_cs_track *track;
   2277 	int r;
   2278 
   2279 	if (p->track == NULL) {
   2280 		/* initialize tracker, we are in kms */
   2281 		track = kzalloc(sizeof(*track), GFP_KERNEL);
   2282 		if (track == NULL)
   2283 			return -ENOMEM;
   2284 		r600_cs_track_init(track);
   2285 		if (p->rdev->family < CHIP_RV770) {
   2286 			track->npipes = p->rdev->config.r600.tiling_npipes;
   2287 			track->nbanks = p->rdev->config.r600.tiling_nbanks;
   2288 			track->group_size = p->rdev->config.r600.tiling_group_size;
   2289 		} else if (p->rdev->family <= CHIP_RV740) {
   2290 			track->npipes = p->rdev->config.rv770.tiling_npipes;
   2291 			track->nbanks = p->rdev->config.rv770.tiling_nbanks;
   2292 			track->group_size = p->rdev->config.rv770.tiling_group_size;
   2293 		}
   2294 		p->track = track;
   2295 	}
   2296 	do {
   2297 		r = radeon_cs_packet_parse(p, &pkt, p->idx);
   2298 		if (r) {
   2299 			kfree(p->track);
   2300 			p->track = NULL;
   2301 			return r;
   2302 		}
   2303 		p->idx += pkt.count + 2;
   2304 		switch (pkt.type) {
   2305 		case RADEON_PACKET_TYPE0:
   2306 			r = r600_cs_parse_packet0(p, &pkt);
   2307 			break;
   2308 		case RADEON_PACKET_TYPE2:
   2309 			break;
   2310 		case RADEON_PACKET_TYPE3:
   2311 			r = r600_packet3_check(p, &pkt);
   2312 			break;
   2313 		default:
   2314 			DRM_ERROR("Unknown packet type %d !\n", pkt.type);
   2315 			kfree(p->track);
   2316 			p->track = NULL;
   2317 			return -EINVAL;
   2318 		}
   2319 		if (r) {
   2320 			kfree(p->track);
   2321 			p->track = NULL;
   2322 			return r;
   2323 		}
   2324 	} while (p->idx < p->chunk_ib->length_dw);
   2325 #if 0
   2326 	for (r = 0; r < p->ib.length_dw; r++) {
   2327 		printk(KERN_INFO "%05d  0x%08X\n", r, p->ib.ptr[r]);
   2328 		mdelay(1);
   2329 	}
   2330 #endif
   2331 	kfree(p->track);
   2332 	p->track = NULL;
   2333 	return 0;
   2334 }
   2335 
   2336 #ifdef CONFIG_DRM_RADEON_UMS
   2337 
   2338 /**
   2339  * cs_parser_fini() - clean parser states
   2340  * @parser:	parser structure holding parsing context.
   2341  * @error:	error number
   2342  *
   2343  * If error is set than unvalidate buffer, otherwise just free memory
   2344  * used by parsing context.
   2345  **/
   2346 static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error)
   2347 {
   2348 	unsigned i;
   2349 
   2350 	kfree(parser->relocs);
   2351 	for (i = 0; i < parser->nchunks; i++)
   2352 		drm_free_large(parser->chunks[i].kdata);
   2353 	kfree(parser->chunks);
   2354 	kfree(parser->chunks_array);
   2355 }
   2356 
   2357 static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p)
   2358 {
   2359 	if (p->chunk_relocs == NULL) {
   2360 		return 0;
   2361 	}
   2362 	p->relocs = kzalloc(sizeof(struct radeon_bo_list), GFP_KERNEL);
   2363 	if (p->relocs == NULL) {
   2364 		return -ENOMEM;
   2365 	}
   2366 	return 0;
   2367 }
   2368 
   2369 int r600_cs_legacy(struct drm_device *dev, void *data, struct drm_file *filp,
   2370 			unsigned family, u32 *ib, int *l)
   2371 {
   2372 	struct radeon_cs_parser parser;
   2373 	struct radeon_cs_chunk *ib_chunk;
   2374 	struct r600_cs_track *track;
   2375 	int r;
   2376 
   2377 	/* initialize tracker */
   2378 	track = kzalloc(sizeof(*track), GFP_KERNEL);
   2379 	if (track == NULL)
   2380 		return -ENOMEM;
   2381 	r600_cs_track_init(track);
   2382 	r600_cs_legacy_get_tiling_conf(dev, &track->npipes, &track->nbanks, &track->group_size);
   2383 	/* initialize parser */
   2384 	memset(&parser, 0, sizeof(struct radeon_cs_parser));
   2385 	parser.filp = filp;
   2386 	parser.dev = &dev->pdev->dev;
   2387 	parser.rdev = NULL;
   2388 	parser.family = family;
   2389 	parser.track = track;
   2390 	parser.ib.ptr = ib;
   2391 	r = radeon_cs_parser_init(&parser, data);
   2392 	if (r) {
   2393 		DRM_ERROR("Failed to initialize parser !\n");
   2394 		r600_cs_parser_fini(&parser, r);
   2395 		return r;
   2396 	}
   2397 	r = r600_cs_parser_relocs_legacy(&parser);
   2398 	if (r) {
   2399 		DRM_ERROR("Failed to parse relocation !\n");
   2400 		r600_cs_parser_fini(&parser, r);
   2401 		return r;
   2402 	}
   2403 	/* Copy the packet into the IB, the parser will read from the
   2404 	 * input memory (cached) and write to the IB (which can be
   2405 	 * uncached). */
   2406 	ib_chunk = parser.chunk_ib;
   2407 	parser.ib.length_dw = ib_chunk->length_dw;
   2408 	*l = parser.ib.length_dw;
   2409 	if (copy_from_user(ib, ib_chunk->user_ptr, ib_chunk->length_dw * 4)) {
   2410 		r = -EFAULT;
   2411 		r600_cs_parser_fini(&parser, r);
   2412 		return r;
   2413 	}
   2414 	r = r600_cs_parse(&parser);
   2415 	if (r) {
   2416 		DRM_ERROR("Invalid command stream !\n");
   2417 		r600_cs_parser_fini(&parser, r);
   2418 		return r;
   2419 	}
   2420 	r600_cs_parser_fini(&parser, r);
   2421 	return r;
   2422 }
   2423 
   2424 void r600_cs_legacy_init(void)
   2425 {
   2426 	r600_nomm = 1;
   2427 }
   2428 
   2429 #endif
   2430 
   2431 /*
   2432  *  DMA
   2433  */
   2434 /**
   2435  * r600_dma_cs_next_reloc() - parse next reloc
   2436  * @p:		parser structure holding parsing context.
   2437  * @cs_reloc:		reloc informations
   2438  *
   2439  * Return the next reloc, do bo validation and compute
   2440  * GPU offset using the provided start.
   2441  **/
   2442 int r600_dma_cs_next_reloc(struct radeon_cs_parser *p,
   2443 			   struct radeon_bo_list **cs_reloc)
   2444 {
   2445 	struct radeon_cs_chunk *relocs_chunk __unused;
   2446 	unsigned idx;
   2447 
   2448 	*cs_reloc = NULL;
   2449 	if (p->chunk_relocs == NULL) {
   2450 		DRM_ERROR("No relocation chunk !\n");
   2451 		return -EINVAL;
   2452 	}
   2453 	relocs_chunk = p->chunk_relocs;
   2454 	idx = p->dma_reloc_idx;
   2455 	if (idx >= p->nrelocs) {
   2456 		DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
   2457 			  idx, p->nrelocs);
   2458 		return -EINVAL;
   2459 	}
   2460 	*cs_reloc = &p->relocs[idx];
   2461 	p->dma_reloc_idx++;
   2462 	return 0;
   2463 }
   2464 
   2465 #define GET_DMA_CMD(h) (((h) & 0xf0000000) >> 28)
   2466 #define GET_DMA_COUNT(h) ((h) & 0x0000ffff)
   2467 #define GET_DMA_T(h) (((h) & 0x00800000) >> 23)
   2468 
   2469 /**
   2470  * r600_dma_cs_parse() - parse the DMA IB
   2471  * @p:		parser structure holding parsing context.
   2472  *
   2473  * Parses the DMA IB from the CS ioctl and updates
   2474  * the GPU addresses based on the reloc information and
   2475  * checks for errors. (R6xx-R7xx)
   2476  * Returns 0 for success and an error on failure.
   2477  **/
   2478 int r600_dma_cs_parse(struct radeon_cs_parser *p)
   2479 {
   2480 	struct radeon_cs_chunk *ib_chunk = p->chunk_ib;
   2481 	struct radeon_bo_list *src_reloc, *dst_reloc;
   2482 	u32 header, cmd, count, tiled;
   2483 	volatile u32 *ib = p->ib.ptr;
   2484 	u32 idx, idx_value;
   2485 	u64 src_offset, dst_offset;
   2486 	int r;
   2487 
   2488 	do {
   2489 		if (p->idx >= ib_chunk->length_dw) {
   2490 			DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
   2491 				  p->idx, ib_chunk->length_dw);
   2492 			return -EINVAL;
   2493 		}
   2494 		idx = p->idx;
   2495 		header = radeon_get_ib_value(p, idx);
   2496 		cmd = GET_DMA_CMD(header);
   2497 		count = GET_DMA_COUNT(header);
   2498 		tiled = GET_DMA_T(header);
   2499 
   2500 		switch (cmd) {
   2501 		case DMA_PACKET_WRITE:
   2502 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
   2503 			if (r) {
   2504 				DRM_ERROR("bad DMA_PACKET_WRITE\n");
   2505 				return -EINVAL;
   2506 			}
   2507 			if (tiled) {
   2508 				dst_offset = radeon_get_ib_value(p, idx+1);
   2509 				dst_offset <<= 8;
   2510 
   2511 				ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
   2512 				p->idx += count + 5;
   2513 			} else {
   2514 				dst_offset = radeon_get_ib_value(p, idx+1);
   2515 				dst_offset |= ((u64)(radeon_get_ib_value(p, idx+2) & 0xff)) << 32;
   2516 
   2517 				ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
   2518 				ib[idx+2] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
   2519 				p->idx += count + 3;
   2520 			}
   2521 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
   2522 				dev_warn(p->dev, "DMA write buffer too small (%"PRIu64" %lu)\n",
   2523 					 dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
   2524 				return -EINVAL;
   2525 			}
   2526 			break;
   2527 		case DMA_PACKET_COPY:
   2528 			r = r600_dma_cs_next_reloc(p, &src_reloc);
   2529 			if (r) {
   2530 				DRM_ERROR("bad DMA_PACKET_COPY\n");
   2531 				return -EINVAL;
   2532 			}
   2533 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
   2534 			if (r) {
   2535 				DRM_ERROR("bad DMA_PACKET_COPY\n");
   2536 				return -EINVAL;
   2537 			}
   2538 			if (tiled) {
   2539 				idx_value = radeon_get_ib_value(p, idx + 2);
   2540 				/* detile bit */
   2541 				if (idx_value & (1 << 31)) {
   2542 					/* tiled src, linear dst */
   2543 					src_offset = radeon_get_ib_value(p, idx+1);
   2544 					src_offset <<= 8;
   2545 					ib[idx+1] += (u32)(src_reloc->gpu_offset >> 8);
   2546 
   2547 					dst_offset = radeon_get_ib_value(p, idx+5);
   2548 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+6) & 0xff)) << 32;
   2549 					ib[idx+5] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
   2550 					ib[idx+6] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
   2551 				} else {
   2552 					/* linear src, tiled dst */
   2553 					src_offset = radeon_get_ib_value(p, idx+5);
   2554 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+6) & 0xff)) << 32;
   2555 					ib[idx+5] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
   2556 					ib[idx+6] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
   2557 
   2558 					dst_offset = radeon_get_ib_value(p, idx+1);
   2559 					dst_offset <<= 8;
   2560 					ib[idx+1] += (u32)(dst_reloc->gpu_offset >> 8);
   2561 				}
   2562 				p->idx += 7;
   2563 			} else {
   2564 				if (p->family >= CHIP_RV770) {
   2565 					src_offset = radeon_get_ib_value(p, idx+2);
   2566 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+4) & 0xff)) << 32;
   2567 					dst_offset = radeon_get_ib_value(p, idx+1);
   2568 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff)) << 32;
   2569 
   2570 					ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
   2571 					ib[idx+2] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
   2572 					ib[idx+3] += upper_32_bits(dst_reloc->gpu_offset) & 0xff;
   2573 					ib[idx+4] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
   2574 					p->idx += 5;
   2575 				} else {
   2576 					src_offset = radeon_get_ib_value(p, idx+2);
   2577 					src_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff)) << 32;
   2578 					dst_offset = radeon_get_ib_value(p, idx+1);
   2579 					dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0xff0000)) << 16;
   2580 
   2581 					ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
   2582 					ib[idx+2] += (u32)(src_reloc->gpu_offset & 0xfffffffc);
   2583 					ib[idx+3] += upper_32_bits(src_reloc->gpu_offset) & 0xff;
   2584 					ib[idx+3] += (upper_32_bits(dst_reloc->gpu_offset) & 0xff) << 16;
   2585 					p->idx += 4;
   2586 				}
   2587 			}
   2588 			if ((src_offset + (count * 4)) > radeon_bo_size(src_reloc->robj)) {
   2589 				dev_warn(p->dev, "DMA copy src buffer too small (%"PRIu64" %lu)\n",
   2590 					 src_offset + (count * 4), radeon_bo_size(src_reloc->robj));
   2591 				return -EINVAL;
   2592 			}
   2593 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
   2594 				dev_warn(p->dev, "DMA write dst buffer too small (%"PRIu64" %lu)\n",
   2595 					 dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
   2596 				return -EINVAL;
   2597 			}
   2598 			break;
   2599 		case DMA_PACKET_CONSTANT_FILL:
   2600 			if (p->family < CHIP_RV770) {
   2601 				DRM_ERROR("Constant Fill is 7xx only !\n");
   2602 				return -EINVAL;
   2603 			}
   2604 			r = r600_dma_cs_next_reloc(p, &dst_reloc);
   2605 			if (r) {
   2606 				DRM_ERROR("bad DMA_PACKET_WRITE\n");
   2607 				return -EINVAL;
   2608 			}
   2609 			dst_offset = radeon_get_ib_value(p, idx+1);
   2610 			dst_offset |= ((u64)(radeon_get_ib_value(p, idx+3) & 0x00ff0000)) << 16;
   2611 			if ((dst_offset + (count * 4)) > radeon_bo_size(dst_reloc->robj)) {
   2612 				dev_warn(p->dev, "DMA constant fill buffer too small (%"PRIu64" %lu)\n",
   2613 					 dst_offset + (count * 4), radeon_bo_size(dst_reloc->robj));
   2614 				return -EINVAL;
   2615 			}
   2616 			ib[idx+1] += (u32)(dst_reloc->gpu_offset & 0xfffffffc);
   2617 			ib[idx+3] += (upper_32_bits(dst_reloc->gpu_offset) << 16) & 0x00ff0000;
   2618 			p->idx += 4;
   2619 			break;
   2620 		case DMA_PACKET_NOP:
   2621 			p->idx += 1;
   2622 			break;
   2623 		default:
   2624 			DRM_ERROR("Unknown packet type %d at %d !\n", cmd, idx);
   2625 			return -EINVAL;
   2626 		}
   2627 	} while (p->idx < p->chunk_ib->length_dw);
   2628 #if 0
   2629 	for (r = 0; r < p->ib->length_dw; r++) {
   2630 		printk(KERN_INFO "%05d  0x%08X\n", r, p->ib.ptr[r]);
   2631 		mdelay(1);
   2632 	}
   2633 #endif
   2634 	return 0;
   2635 }
   2636