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      1 /*
      2  * Copyright 2010 Jerome Glisse <glisse (at) freedesktop.org>
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     22  */
     23 #include "r600_formats.h"
     24 #include "r600_shader.h"
     25 #include "r600d.h"
     26 
     27 #include "pipe/p_shader_tokens.h"
     28 #include "util/u_pack_color.h"
     29 #include "util/u_memory.h"
     30 #include "util/u_framebuffer.h"
     31 #include "util/u_dual_blend.h"
     32 
     33 static uint32_t r600_translate_blend_function(int blend_func)
     34 {
     35 	switch (blend_func) {
     36 	case PIPE_BLEND_ADD:
     37 		return V_028804_COMB_DST_PLUS_SRC;
     38 	case PIPE_BLEND_SUBTRACT:
     39 		return V_028804_COMB_SRC_MINUS_DST;
     40 	case PIPE_BLEND_REVERSE_SUBTRACT:
     41 		return V_028804_COMB_DST_MINUS_SRC;
     42 	case PIPE_BLEND_MIN:
     43 		return V_028804_COMB_MIN_DST_SRC;
     44 	case PIPE_BLEND_MAX:
     45 		return V_028804_COMB_MAX_DST_SRC;
     46 	default:
     47 		R600_ERR("Unknown blend function %d\n", blend_func);
     48 		assert(0);
     49 		break;
     50 	}
     51 	return 0;
     52 }
     53 
     54 static uint32_t r600_translate_blend_factor(int blend_fact)
     55 {
     56 	switch (blend_fact) {
     57 	case PIPE_BLENDFACTOR_ONE:
     58 		return V_028804_BLEND_ONE;
     59 	case PIPE_BLENDFACTOR_SRC_COLOR:
     60 		return V_028804_BLEND_SRC_COLOR;
     61 	case PIPE_BLENDFACTOR_SRC_ALPHA:
     62 		return V_028804_BLEND_SRC_ALPHA;
     63 	case PIPE_BLENDFACTOR_DST_ALPHA:
     64 		return V_028804_BLEND_DST_ALPHA;
     65 	case PIPE_BLENDFACTOR_DST_COLOR:
     66 		return V_028804_BLEND_DST_COLOR;
     67 	case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
     68 		return V_028804_BLEND_SRC_ALPHA_SATURATE;
     69 	case PIPE_BLENDFACTOR_CONST_COLOR:
     70 		return V_028804_BLEND_CONST_COLOR;
     71 	case PIPE_BLENDFACTOR_CONST_ALPHA:
     72 		return V_028804_BLEND_CONST_ALPHA;
     73 	case PIPE_BLENDFACTOR_ZERO:
     74 		return V_028804_BLEND_ZERO;
     75 	case PIPE_BLENDFACTOR_INV_SRC_COLOR:
     76 		return V_028804_BLEND_ONE_MINUS_SRC_COLOR;
     77 	case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
     78 		return V_028804_BLEND_ONE_MINUS_SRC_ALPHA;
     79 	case PIPE_BLENDFACTOR_INV_DST_ALPHA:
     80 		return V_028804_BLEND_ONE_MINUS_DST_ALPHA;
     81 	case PIPE_BLENDFACTOR_INV_DST_COLOR:
     82 		return V_028804_BLEND_ONE_MINUS_DST_COLOR;
     83 	case PIPE_BLENDFACTOR_INV_CONST_COLOR:
     84 		return V_028804_BLEND_ONE_MINUS_CONST_COLOR;
     85 	case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
     86 		return V_028804_BLEND_ONE_MINUS_CONST_ALPHA;
     87 	case PIPE_BLENDFACTOR_SRC1_COLOR:
     88 		return V_028804_BLEND_SRC1_COLOR;
     89 	case PIPE_BLENDFACTOR_SRC1_ALPHA:
     90 		return V_028804_BLEND_SRC1_ALPHA;
     91 	case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
     92 		return V_028804_BLEND_INV_SRC1_COLOR;
     93 	case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
     94 		return V_028804_BLEND_INV_SRC1_ALPHA;
     95 	default:
     96 		R600_ERR("Bad blend factor %d not supported!\n", blend_fact);
     97 		assert(0);
     98 		break;
     99 	}
    100 	return 0;
    101 }
    102 
    103 static unsigned r600_tex_dim(unsigned dim, unsigned nr_samples)
    104 {
    105 	switch (dim) {
    106 	default:
    107 	case PIPE_TEXTURE_1D:
    108 		return V_038000_SQ_TEX_DIM_1D;
    109 	case PIPE_TEXTURE_1D_ARRAY:
    110 		return V_038000_SQ_TEX_DIM_1D_ARRAY;
    111 	case PIPE_TEXTURE_2D:
    112 	case PIPE_TEXTURE_RECT:
    113 		return nr_samples > 1 ? V_038000_SQ_TEX_DIM_2D_MSAA :
    114 					V_038000_SQ_TEX_DIM_2D;
    115 	case PIPE_TEXTURE_2D_ARRAY:
    116 		return nr_samples > 1 ? V_038000_SQ_TEX_DIM_2D_ARRAY_MSAA :
    117 					V_038000_SQ_TEX_DIM_2D_ARRAY;
    118 	case PIPE_TEXTURE_3D:
    119 		return V_038000_SQ_TEX_DIM_3D;
    120 	case PIPE_TEXTURE_CUBE:
    121 	case PIPE_TEXTURE_CUBE_ARRAY:
    122 		return V_038000_SQ_TEX_DIM_CUBEMAP;
    123 	}
    124 }
    125 
    126 static uint32_t r600_translate_dbformat(enum pipe_format format)
    127 {
    128 	switch (format) {
    129 	case PIPE_FORMAT_Z16_UNORM:
    130 		return V_028010_DEPTH_16;
    131 	case PIPE_FORMAT_Z24X8_UNORM:
    132 		return V_028010_DEPTH_X8_24;
    133 	case PIPE_FORMAT_Z24_UNORM_S8_UINT:
    134 		return V_028010_DEPTH_8_24;
    135 	case PIPE_FORMAT_Z32_FLOAT:
    136 		return V_028010_DEPTH_32_FLOAT;
    137 	case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
    138 		return V_028010_DEPTH_X24_8_32_FLOAT;
    139 	default:
    140 		return ~0U;
    141 	}
    142 }
    143 
    144 static bool r600_is_sampler_format_supported(struct pipe_screen *screen, enum pipe_format format)
    145 {
    146 	return r600_translate_texformat(screen, format, NULL, NULL, NULL,
    147                                    FALSE) != ~0U;
    148 }
    149 
    150 static bool r600_is_colorbuffer_format_supported(enum chip_class chip, enum pipe_format format)
    151 {
    152 	return r600_translate_colorformat(chip, format, FALSE) != ~0U &&
    153 	       r600_translate_colorswap(format, FALSE) != ~0U;
    154 }
    155 
    156 static bool r600_is_zs_format_supported(enum pipe_format format)
    157 {
    158 	return r600_translate_dbformat(format) != ~0U;
    159 }
    160 
    161 boolean r600_is_format_supported(struct pipe_screen *screen,
    162 				 enum pipe_format format,
    163 				 enum pipe_texture_target target,
    164 				 unsigned sample_count,
    165 				 unsigned usage)
    166 {
    167 	struct r600_screen *rscreen = (struct r600_screen*)screen;
    168 	unsigned retval = 0;
    169 
    170 	if (target >= PIPE_MAX_TEXTURE_TYPES) {
    171 		R600_ERR("r600: unsupported texture type %d\n", target);
    172 		return FALSE;
    173 	}
    174 
    175 	if (!util_format_is_supported(format, usage))
    176 		return FALSE;
    177 
    178 	if (sample_count > 1) {
    179 		if (!rscreen->has_msaa)
    180 			return FALSE;
    181 
    182 		/* R11G11B10 is broken on R6xx. */
    183 		if (rscreen->b.chip_class == R600 &&
    184 		    format == PIPE_FORMAT_R11G11B10_FLOAT)
    185 			return FALSE;
    186 
    187 		/* MSAA integer colorbuffers hang. */
    188 		if (util_format_is_pure_integer(format) &&
    189 		    !util_format_is_depth_or_stencil(format))
    190 			return FALSE;
    191 
    192 		switch (sample_count) {
    193 		case 2:
    194 		case 4:
    195 		case 8:
    196 			break;
    197 		default:
    198 			return FALSE;
    199 		}
    200 	}
    201 
    202 	if (usage & PIPE_BIND_SAMPLER_VIEW) {
    203 		if (target == PIPE_BUFFER) {
    204 			if (r600_is_vertex_format_supported(format))
    205 				retval |= PIPE_BIND_SAMPLER_VIEW;
    206 		} else {
    207 			if (r600_is_sampler_format_supported(screen, format))
    208 				retval |= PIPE_BIND_SAMPLER_VIEW;
    209 		}
    210 	}
    211 
    212 	if ((usage & (PIPE_BIND_RENDER_TARGET |
    213 		      PIPE_BIND_DISPLAY_TARGET |
    214 		      PIPE_BIND_SCANOUT |
    215 		      PIPE_BIND_SHARED |
    216 		      PIPE_BIND_BLENDABLE)) &&
    217 	    r600_is_colorbuffer_format_supported(rscreen->b.chip_class, format)) {
    218 		retval |= usage &
    219 			  (PIPE_BIND_RENDER_TARGET |
    220 			   PIPE_BIND_DISPLAY_TARGET |
    221 			   PIPE_BIND_SCANOUT |
    222 			   PIPE_BIND_SHARED);
    223 		if (!util_format_is_pure_integer(format) &&
    224 		    !util_format_is_depth_or_stencil(format))
    225 			retval |= usage & PIPE_BIND_BLENDABLE;
    226 	}
    227 
    228 	if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
    229 	    r600_is_zs_format_supported(format)) {
    230 		retval |= PIPE_BIND_DEPTH_STENCIL;
    231 	}
    232 
    233 	if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
    234 	    r600_is_vertex_format_supported(format)) {
    235 		retval |= PIPE_BIND_VERTEX_BUFFER;
    236 	}
    237 
    238 	if ((usage & PIPE_BIND_LINEAR) &&
    239 	    !util_format_is_compressed(format) &&
    240 	    !(usage & PIPE_BIND_DEPTH_STENCIL))
    241 		retval |= PIPE_BIND_LINEAR;
    242 
    243 	return retval == usage;
    244 }
    245 
    246 static void r600_emit_polygon_offset(struct r600_context *rctx, struct r600_atom *a)
    247 {
    248 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
    249 	struct r600_poly_offset_state *state = (struct r600_poly_offset_state*)a;
    250 	float offset_units = state->offset_units;
    251 	float offset_scale = state->offset_scale;
    252 	uint32_t pa_su_poly_offset_db_fmt_cntl = 0;
    253 
    254 	if (!state->offset_units_unscaled) {
    255 		switch (state->zs_format) {
    256 		case PIPE_FORMAT_Z24X8_UNORM:
    257 		case PIPE_FORMAT_Z24_UNORM_S8_UINT:
    258 			offset_units *= 2.0f;
    259 			pa_su_poly_offset_db_fmt_cntl =
    260 				S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-24);
    261 			break;
    262 		case PIPE_FORMAT_Z16_UNORM:
    263 			offset_units *= 4.0f;
    264 			pa_su_poly_offset_db_fmt_cntl =
    265 				S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-16);
    266 			break;
    267 		default:
    268 			pa_su_poly_offset_db_fmt_cntl =
    269 				S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-23) |
    270 				S_028DF8_POLY_OFFSET_DB_IS_FLOAT_FMT(1);
    271 		}
    272 	}
    273 
    274 	radeon_set_context_reg_seq(cs, R_028E00_PA_SU_POLY_OFFSET_FRONT_SCALE, 4);
    275 	radeon_emit(cs, fui(offset_scale));
    276 	radeon_emit(cs, fui(offset_units));
    277 	radeon_emit(cs, fui(offset_scale));
    278 	radeon_emit(cs, fui(offset_units));
    279 
    280 	radeon_set_context_reg(cs, R_028DF8_PA_SU_POLY_OFFSET_DB_FMT_CNTL,
    281 			       pa_su_poly_offset_db_fmt_cntl);
    282 }
    283 
    284 static uint32_t r600_get_blend_control(const struct pipe_blend_state *state, unsigned i)
    285 {
    286 	int j = state->independent_blend_enable ? i : 0;
    287 
    288 	unsigned eqRGB = state->rt[j].rgb_func;
    289 	unsigned srcRGB = state->rt[j].rgb_src_factor;
    290 	unsigned dstRGB = state->rt[j].rgb_dst_factor;
    291 
    292 	unsigned eqA = state->rt[j].alpha_func;
    293 	unsigned srcA = state->rt[j].alpha_src_factor;
    294 	unsigned dstA = state->rt[j].alpha_dst_factor;
    295 	uint32_t bc = 0;
    296 
    297 	if (!state->rt[j].blend_enable)
    298 		return 0;
    299 
    300 	bc |= S_028804_COLOR_COMB_FCN(r600_translate_blend_function(eqRGB));
    301 	bc |= S_028804_COLOR_SRCBLEND(r600_translate_blend_factor(srcRGB));
    302 	bc |= S_028804_COLOR_DESTBLEND(r600_translate_blend_factor(dstRGB));
    303 
    304 	if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) {
    305 		bc |= S_028804_SEPARATE_ALPHA_BLEND(1);
    306 		bc |= S_028804_ALPHA_COMB_FCN(r600_translate_blend_function(eqA));
    307 		bc |= S_028804_ALPHA_SRCBLEND(r600_translate_blend_factor(srcA));
    308 		bc |= S_028804_ALPHA_DESTBLEND(r600_translate_blend_factor(dstA));
    309 	}
    310 	return bc;
    311 }
    312 
    313 static void *r600_create_blend_state_mode(struct pipe_context *ctx,
    314 					  const struct pipe_blend_state *state,
    315 					  int mode)
    316 {
    317 	struct r600_context *rctx = (struct r600_context *)ctx;
    318 	uint32_t color_control = 0, target_mask = 0;
    319 	struct r600_blend_state *blend = CALLOC_STRUCT(r600_blend_state);
    320 
    321 	if (!blend) {
    322 		return NULL;
    323 	}
    324 
    325 	r600_init_command_buffer(&blend->buffer, 20);
    326 	r600_init_command_buffer(&blend->buffer_no_blend, 20);
    327 
    328 	/* R600 does not support per-MRT blends */
    329 	if (rctx->b.family > CHIP_R600)
    330 		color_control |= S_028808_PER_MRT_BLEND(1);
    331 
    332 	if (state->logicop_enable) {
    333 		color_control |= (state->logicop_func << 16) | (state->logicop_func << 20);
    334 	} else {
    335 		color_control |= (0xcc << 16);
    336 	}
    337 	/* we pretend 8 buffer are used, CB_SHADER_MASK will disable unused one */
    338 	if (state->independent_blend_enable) {
    339 		for (int i = 0; i < 8; i++) {
    340 			if (state->rt[i].blend_enable) {
    341 				color_control |= S_028808_TARGET_BLEND_ENABLE(1 << i);
    342 			}
    343 			target_mask |= (state->rt[i].colormask << (4 * i));
    344 		}
    345 	} else {
    346 		for (int i = 0; i < 8; i++) {
    347 			if (state->rt[0].blend_enable) {
    348 				color_control |= S_028808_TARGET_BLEND_ENABLE(1 << i);
    349 			}
    350 			target_mask |= (state->rt[0].colormask << (4 * i));
    351 		}
    352 	}
    353 
    354 	if (target_mask)
    355 		color_control |= S_028808_SPECIAL_OP(mode);
    356 	else
    357 		color_control |= S_028808_SPECIAL_OP(V_028808_DISABLE);
    358 
    359 	/* only MRT0 has dual src blend */
    360 	blend->dual_src_blend = util_blend_state_is_dual(state, 0);
    361 	blend->cb_target_mask = target_mask;
    362 	blend->cb_color_control = color_control;
    363 	blend->cb_color_control_no_blend = color_control & C_028808_TARGET_BLEND_ENABLE;
    364 	blend->alpha_to_one = state->alpha_to_one;
    365 
    366 	r600_store_context_reg(&blend->buffer, R_028D44_DB_ALPHA_TO_MASK,
    367 			       S_028D44_ALPHA_TO_MASK_ENABLE(state->alpha_to_coverage) |
    368 			       S_028D44_ALPHA_TO_MASK_OFFSET0(2) |
    369 			       S_028D44_ALPHA_TO_MASK_OFFSET1(2) |
    370 			       S_028D44_ALPHA_TO_MASK_OFFSET2(2) |
    371 			       S_028D44_ALPHA_TO_MASK_OFFSET3(2));
    372 
    373 	/* Copy over the registers set so far into buffer_no_blend. */
    374 	memcpy(blend->buffer_no_blend.buf, blend->buffer.buf, blend->buffer.num_dw * 4);
    375 	blend->buffer_no_blend.num_dw = blend->buffer.num_dw;
    376 
    377 	/* Only add blend registers if blending is enabled. */
    378 	if (!G_028808_TARGET_BLEND_ENABLE(color_control)) {
    379 		return blend;
    380 	}
    381 
    382 	/* The first R600 does not support per-MRT blends */
    383 	r600_store_context_reg(&blend->buffer, R_028804_CB_BLEND_CONTROL,
    384 			       r600_get_blend_control(state, 0));
    385 
    386 	if (rctx->b.family > CHIP_R600) {
    387 		r600_store_context_reg_seq(&blend->buffer, R_028780_CB_BLEND0_CONTROL, 8);
    388 		for (int i = 0; i < 8; i++) {
    389 			r600_store_value(&blend->buffer, r600_get_blend_control(state, i));
    390 		}
    391 	}
    392 	return blend;
    393 }
    394 
    395 static void *r600_create_blend_state(struct pipe_context *ctx,
    396 				     const struct pipe_blend_state *state)
    397 {
    398 	return r600_create_blend_state_mode(ctx, state, V_028808_SPECIAL_NORMAL);
    399 }
    400 
    401 static void *r600_create_dsa_state(struct pipe_context *ctx,
    402 				   const struct pipe_depth_stencil_alpha_state *state)
    403 {
    404 	unsigned db_depth_control, alpha_test_control, alpha_ref;
    405 	struct r600_dsa_state *dsa = CALLOC_STRUCT(r600_dsa_state);
    406 
    407 	if (!dsa) {
    408 		return NULL;
    409 	}
    410 
    411 	r600_init_command_buffer(&dsa->buffer, 3);
    412 
    413 	dsa->valuemask[0] = state->stencil[0].valuemask;
    414 	dsa->valuemask[1] = state->stencil[1].valuemask;
    415 	dsa->writemask[0] = state->stencil[0].writemask;
    416 	dsa->writemask[1] = state->stencil[1].writemask;
    417 	dsa->zwritemask = state->depth.writemask;
    418 
    419 	db_depth_control = S_028800_Z_ENABLE(state->depth.enabled) |
    420 		S_028800_Z_WRITE_ENABLE(state->depth.writemask) |
    421 		S_028800_ZFUNC(state->depth.func);
    422 
    423 	/* stencil */
    424 	if (state->stencil[0].enabled) {
    425 		db_depth_control |= S_028800_STENCIL_ENABLE(1);
    426 		db_depth_control |= S_028800_STENCILFUNC(state->stencil[0].func); /* translates straight */
    427 		db_depth_control |= S_028800_STENCILFAIL(r600_translate_stencil_op(state->stencil[0].fail_op));
    428 		db_depth_control |= S_028800_STENCILZPASS(r600_translate_stencil_op(state->stencil[0].zpass_op));
    429 		db_depth_control |= S_028800_STENCILZFAIL(r600_translate_stencil_op(state->stencil[0].zfail_op));
    430 
    431 		if (state->stencil[1].enabled) {
    432 			db_depth_control |= S_028800_BACKFACE_ENABLE(1);
    433 			db_depth_control |= S_028800_STENCILFUNC_BF(state->stencil[1].func); /* translates straight */
    434 			db_depth_control |= S_028800_STENCILFAIL_BF(r600_translate_stencil_op(state->stencil[1].fail_op));
    435 			db_depth_control |= S_028800_STENCILZPASS_BF(r600_translate_stencil_op(state->stencil[1].zpass_op));
    436 			db_depth_control |= S_028800_STENCILZFAIL_BF(r600_translate_stencil_op(state->stencil[1].zfail_op));
    437 		}
    438 	}
    439 
    440 	/* alpha */
    441 	alpha_test_control = 0;
    442 	alpha_ref = 0;
    443 	if (state->alpha.enabled) {
    444 		alpha_test_control = S_028410_ALPHA_FUNC(state->alpha.func);
    445 		alpha_test_control |= S_028410_ALPHA_TEST_ENABLE(1);
    446 		alpha_ref = fui(state->alpha.ref_value);
    447 	}
    448 	dsa->sx_alpha_test_control = alpha_test_control & 0xff;
    449 	dsa->alpha_ref = alpha_ref;
    450 
    451 	r600_store_context_reg(&dsa->buffer, R_028800_DB_DEPTH_CONTROL, db_depth_control);
    452 	return dsa;
    453 }
    454 
    455 static void *r600_create_rs_state(struct pipe_context *ctx,
    456 				  const struct pipe_rasterizer_state *state)
    457 {
    458 	struct r600_context *rctx = (struct r600_context *)ctx;
    459 	unsigned tmp, sc_mode_cntl, spi_interp;
    460 	float psize_min, psize_max;
    461 	struct r600_rasterizer_state *rs = CALLOC_STRUCT(r600_rasterizer_state);
    462 
    463 	if (!rs) {
    464 		return NULL;
    465 	}
    466 
    467 	r600_init_command_buffer(&rs->buffer, 30);
    468 
    469 	rs->scissor_enable = state->scissor;
    470 	rs->clip_halfz = state->clip_halfz;
    471 	rs->flatshade = state->flatshade;
    472 	rs->sprite_coord_enable = state->sprite_coord_enable;
    473 	rs->rasterizer_discard = state->rasterizer_discard;
    474 	rs->two_side = state->light_twoside;
    475 	rs->clip_plane_enable = state->clip_plane_enable;
    476 	rs->pa_sc_line_stipple = state->line_stipple_enable ?
    477 				S_028A0C_LINE_PATTERN(state->line_stipple_pattern) |
    478 				S_028A0C_REPEAT_COUNT(state->line_stipple_factor) : 0;
    479 	rs->pa_cl_clip_cntl =
    480 		S_028810_DX_CLIP_SPACE_DEF(state->clip_halfz) |
    481 		S_028810_ZCLIP_NEAR_DISABLE(!state->depth_clip) |
    482 		S_028810_ZCLIP_FAR_DISABLE(!state->depth_clip) |
    483 		S_028810_DX_LINEAR_ATTR_CLIP_ENA(1);
    484 	if (rctx->b.chip_class == R700) {
    485 		rs->pa_cl_clip_cntl |=
    486 			S_028810_DX_RASTERIZATION_KILL(state->rasterizer_discard);
    487 	}
    488 	rs->multisample_enable = state->multisample;
    489 
    490 	/* offset */
    491 	rs->offset_units = state->offset_units;
    492 	rs->offset_scale = state->offset_scale * 16.0f;
    493 	rs->offset_enable = state->offset_point || state->offset_line || state->offset_tri;
    494 	rs->offset_units_unscaled = state->offset_units_unscaled;
    495 
    496 	if (state->point_size_per_vertex) {
    497 		psize_min = util_get_min_point_size(state);
    498 		psize_max = 8192;
    499 	} else {
    500 		/* Force the point size to be as if the vertex output was disabled. */
    501 		psize_min = state->point_size;
    502 		psize_max = state->point_size;
    503 	}
    504 
    505 	sc_mode_cntl = S_028A4C_MSAA_ENABLE(state->multisample) |
    506 		       S_028A4C_LINE_STIPPLE_ENABLE(state->line_stipple_enable) |
    507 		       S_028A4C_FORCE_EOV_CNTDWN_ENABLE(1) |
    508 		       S_028A4C_PS_ITER_SAMPLE(state->multisample && rctx->ps_iter_samples > 1);
    509 	if (rctx->b.family == CHIP_RV770) {
    510 		/* workaround possible rendering corruption on RV770 with hyperz together with sample shading */
    511 		sc_mode_cntl |= S_028A4C_TILE_COVER_DISABLE(state->multisample && rctx->ps_iter_samples > 1);
    512 	}
    513 	if (rctx->b.chip_class >= R700) {
    514 		sc_mode_cntl |= S_028A4C_FORCE_EOV_REZ_ENABLE(1) |
    515 				S_028A4C_R700_ZMM_LINE_OFFSET(1) |
    516 				S_028A4C_R700_VPORT_SCISSOR_ENABLE(1);
    517 	} else {
    518 		sc_mode_cntl |= S_028A4C_WALK_ALIGN8_PRIM_FITS_ST(1);
    519 	}
    520 
    521 	spi_interp = S_0286D4_FLAT_SHADE_ENA(1);
    522 	if (state->sprite_coord_enable) {
    523 		spi_interp |= S_0286D4_PNT_SPRITE_ENA(1) |
    524 			      S_0286D4_PNT_SPRITE_OVRD_X(2) |
    525 			      S_0286D4_PNT_SPRITE_OVRD_Y(3) |
    526 			      S_0286D4_PNT_SPRITE_OVRD_Z(0) |
    527 			      S_0286D4_PNT_SPRITE_OVRD_W(1);
    528 		if (state->sprite_coord_mode != PIPE_SPRITE_COORD_UPPER_LEFT) {
    529 			spi_interp |= S_0286D4_PNT_SPRITE_TOP_1(1);
    530 		}
    531 	}
    532 
    533 	r600_store_context_reg_seq(&rs->buffer, R_028A00_PA_SU_POINT_SIZE, 3);
    534 	/* point size 12.4 fixed point (divide by two, because 0.5 = 1 pixel. */
    535 	tmp = r600_pack_float_12p4(state->point_size/2);
    536 	r600_store_value(&rs->buffer, /* R_028A00_PA_SU_POINT_SIZE */
    537 			 S_028A00_HEIGHT(tmp) | S_028A00_WIDTH(tmp));
    538 	r600_store_value(&rs->buffer, /* R_028A04_PA_SU_POINT_MINMAX */
    539 			 S_028A04_MIN_SIZE(r600_pack_float_12p4(psize_min/2)) |
    540 			 S_028A04_MAX_SIZE(r600_pack_float_12p4(psize_max/2)));
    541 	r600_store_value(&rs->buffer, /* R_028A08_PA_SU_LINE_CNTL */
    542 			 S_028A08_WIDTH(r600_pack_float_12p4(state->line_width/2)));
    543 
    544 	r600_store_context_reg(&rs->buffer, R_0286D4_SPI_INTERP_CONTROL_0, spi_interp);
    545 	r600_store_context_reg(&rs->buffer, R_028A4C_PA_SC_MODE_CNTL, sc_mode_cntl);
    546 	r600_store_context_reg(&rs->buffer, R_028C08_PA_SU_VTX_CNTL,
    547 			       S_028C08_PIX_CENTER_HALF(state->half_pixel_center) |
    548 			       S_028C08_QUANT_MODE(V_028C08_X_1_256TH));
    549 	r600_store_context_reg(&rs->buffer, R_028DFC_PA_SU_POLY_OFFSET_CLAMP, fui(state->offset_clamp));
    550 
    551 	rs->pa_su_sc_mode_cntl = S_028814_PROVOKING_VTX_LAST(!state->flatshade_first) |
    552 				 S_028814_CULL_FRONT(state->cull_face & PIPE_FACE_FRONT ? 1 : 0) |
    553 				 S_028814_CULL_BACK(state->cull_face & PIPE_FACE_BACK ? 1 : 0) |
    554 				 S_028814_FACE(!state->front_ccw) |
    555 				 S_028814_POLY_OFFSET_FRONT_ENABLE(util_get_offset(state, state->fill_front)) |
    556 				 S_028814_POLY_OFFSET_BACK_ENABLE(util_get_offset(state, state->fill_back)) |
    557 				 S_028814_POLY_OFFSET_PARA_ENABLE(state->offset_point || state->offset_line) |
    558 				 S_028814_POLY_MODE(state->fill_front != PIPE_POLYGON_MODE_FILL ||
    559 									 state->fill_back != PIPE_POLYGON_MODE_FILL) |
    560 				 S_028814_POLYMODE_FRONT_PTYPE(r600_translate_fill(state->fill_front)) |
    561 				 S_028814_POLYMODE_BACK_PTYPE(r600_translate_fill(state->fill_back));
    562 	if (rctx->b.chip_class == R700) {
    563 		r600_store_context_reg(&rs->buffer, R_028814_PA_SU_SC_MODE_CNTL, rs->pa_su_sc_mode_cntl);
    564 	}
    565 	if (rctx->b.chip_class == R600) {
    566 		r600_store_context_reg(&rs->buffer, R_028350_SX_MISC,
    567 				       S_028350_MULTIPASS(state->rasterizer_discard));
    568 	}
    569 	return rs;
    570 }
    571 
    572 static unsigned r600_tex_filter(unsigned filter, unsigned max_aniso)
    573 {
    574 	if (filter == PIPE_TEX_FILTER_LINEAR)
    575 		return max_aniso > 1 ? V_03C000_SQ_TEX_XY_FILTER_ANISO_BILINEAR
    576 				     : V_03C000_SQ_TEX_XY_FILTER_BILINEAR;
    577 	else
    578 		return max_aniso > 1 ? V_03C000_SQ_TEX_XY_FILTER_ANISO_POINT
    579 				     : V_03C000_SQ_TEX_XY_FILTER_POINT;
    580 }
    581 
    582 static void *r600_create_sampler_state(struct pipe_context *ctx,
    583 					const struct pipe_sampler_state *state)
    584 {
    585 	struct r600_common_screen *rscreen = (struct r600_common_screen*)ctx->screen;
    586 	struct r600_pipe_sampler_state *ss = CALLOC_STRUCT(r600_pipe_sampler_state);
    587 	unsigned max_aniso = rscreen->force_aniso >= 0 ? rscreen->force_aniso
    588 						       : state->max_anisotropy;
    589 	unsigned max_aniso_ratio = r600_tex_aniso_filter(max_aniso);
    590 
    591 	if (!ss) {
    592 		return NULL;
    593 	}
    594 
    595 	ss->seamless_cube_map = state->seamless_cube_map;
    596 	ss->border_color_use = sampler_state_needs_border_color(state);
    597 
    598 	/* R_03C000_SQ_TEX_SAMPLER_WORD0_0 */
    599 	ss->tex_sampler_words[0] =
    600 		S_03C000_CLAMP_X(r600_tex_wrap(state->wrap_s)) |
    601 		S_03C000_CLAMP_Y(r600_tex_wrap(state->wrap_t)) |
    602 		S_03C000_CLAMP_Z(r600_tex_wrap(state->wrap_r)) |
    603 		S_03C000_XY_MAG_FILTER(r600_tex_filter(state->mag_img_filter, max_aniso)) |
    604 		S_03C000_XY_MIN_FILTER(r600_tex_filter(state->min_img_filter, max_aniso)) |
    605 		S_03C000_MIP_FILTER(r600_tex_mipfilter(state->min_mip_filter)) |
    606 		S_03C000_MAX_ANISO_RATIO(max_aniso_ratio) |
    607 		S_03C000_DEPTH_COMPARE_FUNCTION(r600_tex_compare(state->compare_func)) |
    608 		S_03C000_BORDER_COLOR_TYPE(ss->border_color_use ? V_03C000_SQ_TEX_BORDER_COLOR_REGISTER : 0);
    609 	/* R_03C004_SQ_TEX_SAMPLER_WORD1_0 */
    610 	ss->tex_sampler_words[1] =
    611 		S_03C004_MIN_LOD(S_FIXED(CLAMP(state->min_lod, 0, 15), 6)) |
    612 		S_03C004_MAX_LOD(S_FIXED(CLAMP(state->max_lod, 0, 15), 6)) |
    613 		S_03C004_LOD_BIAS(S_FIXED(CLAMP(state->lod_bias, -16, 16), 6));
    614 	/* R_03C008_SQ_TEX_SAMPLER_WORD2_0 */
    615 	ss->tex_sampler_words[2] = S_03C008_TYPE(1);
    616 
    617 	if (ss->border_color_use) {
    618 		memcpy(&ss->border_color, &state->border_color, sizeof(state->border_color));
    619 	}
    620 	return ss;
    621 }
    622 
    623 static struct pipe_sampler_view *
    624 texture_buffer_sampler_view(struct r600_pipe_sampler_view *view,
    625 			    unsigned width0, unsigned height0)
    626 
    627 {
    628 	struct r600_texture *tmp = (struct r600_texture*)view->base.texture;
    629 	int stride = util_format_get_blocksize(view->base.format);
    630 	unsigned format, num_format, format_comp, endian;
    631 	uint64_t offset = view->base.u.buf.offset;
    632 	unsigned size = view->base.u.buf.size;
    633 
    634 	r600_vertex_data_type(view->base.format,
    635 			      &format, &num_format, &format_comp,
    636 			      &endian);
    637 
    638 	view->tex_resource = &tmp->resource;
    639 	view->skip_mip_address_reloc = true;
    640 
    641 	view->tex_resource_words[0] = offset;
    642 	view->tex_resource_words[1] = size - 1;
    643 	view->tex_resource_words[2] = S_038008_BASE_ADDRESS_HI(offset >> 32UL) |
    644 		S_038008_STRIDE(stride) |
    645 		S_038008_DATA_FORMAT(format) |
    646 		S_038008_NUM_FORMAT_ALL(num_format) |
    647 		S_038008_FORMAT_COMP_ALL(format_comp) |
    648 		S_038008_ENDIAN_SWAP(endian);
    649 	view->tex_resource_words[3] = 0;
    650 	/*
    651 	 * in theory dword 4 is for number of elements, for use with resinfo,
    652 	 * but it seems to utterly fail to work, the amd gpu shader analyser
    653 	 * uses a const buffer to store the element sizes for buffer txq
    654 	 */
    655 	view->tex_resource_words[4] = 0;
    656 	view->tex_resource_words[5] = 0;
    657 	view->tex_resource_words[6] = S_038018_TYPE(V_038010_SQ_TEX_VTX_VALID_BUFFER);
    658 	return &view->base;
    659 }
    660 
    661 struct pipe_sampler_view *
    662 r600_create_sampler_view_custom(struct pipe_context *ctx,
    663 				struct pipe_resource *texture,
    664 				const struct pipe_sampler_view *state,
    665 				unsigned width_first_level, unsigned height_first_level)
    666 {
    667 	struct r600_pipe_sampler_view *view = CALLOC_STRUCT(r600_pipe_sampler_view);
    668 	struct r600_texture *tmp = (struct r600_texture*)texture;
    669 	unsigned format, endian;
    670 	uint32_t word4 = 0, yuv_format = 0, pitch = 0;
    671 	unsigned char swizzle[4], array_mode = 0;
    672 	unsigned width, height, depth, offset_level, last_level;
    673 	bool do_endian_swap = FALSE;
    674 
    675 	if (!view)
    676 		return NULL;
    677 
    678 	/* initialize base object */
    679 	view->base = *state;
    680 	view->base.texture = NULL;
    681 	pipe_reference(NULL, &texture->reference);
    682 	view->base.texture = texture;
    683 	view->base.reference.count = 1;
    684 	view->base.context = ctx;
    685 
    686 	if (texture->target == PIPE_BUFFER)
    687 		return texture_buffer_sampler_view(view, texture->width0, 1);
    688 
    689 	swizzle[0] = state->swizzle_r;
    690 	swizzle[1] = state->swizzle_g;
    691 	swizzle[2] = state->swizzle_b;
    692 	swizzle[3] = state->swizzle_a;
    693 
    694 	if (R600_BIG_ENDIAN)
    695 		do_endian_swap = !tmp->db_compatible;
    696 
    697 	format = r600_translate_texformat(ctx->screen, state->format,
    698 					  swizzle,
    699 					  &word4, &yuv_format, do_endian_swap);
    700 	assert(format != ~0);
    701 	if (format == ~0) {
    702 		FREE(view);
    703 		return NULL;
    704 	}
    705 
    706 	if (state->format == PIPE_FORMAT_X24S8_UINT ||
    707 	    state->format == PIPE_FORMAT_S8X24_UINT ||
    708 	    state->format == PIPE_FORMAT_X32_S8X24_UINT ||
    709 	    state->format == PIPE_FORMAT_S8_UINT)
    710 		view->is_stencil_sampler = true;
    711 
    712 	if (tmp->is_depth && !r600_can_sample_zs(tmp, view->is_stencil_sampler)) {
    713 		if (!r600_init_flushed_depth_texture(ctx, texture, NULL)) {
    714 			FREE(view);
    715 			return NULL;
    716 		}
    717 		tmp = tmp->flushed_depth_texture;
    718 	}
    719 
    720 	endian = r600_colorformat_endian_swap(format, do_endian_swap);
    721 
    722 	offset_level = state->u.tex.first_level;
    723 	last_level = state->u.tex.last_level - offset_level;
    724 	width = width_first_level;
    725 	height = height_first_level;
    726         depth = u_minify(texture->depth0, offset_level);
    727 	pitch = tmp->surface.u.legacy.level[offset_level].nblk_x * util_format_get_blockwidth(state->format);
    728 
    729 	if (texture->target == PIPE_TEXTURE_1D_ARRAY) {
    730 		height = 1;
    731 		depth = texture->array_size;
    732 	} else if (texture->target == PIPE_TEXTURE_2D_ARRAY) {
    733 		depth = texture->array_size;
    734 	} else if (texture->target == PIPE_TEXTURE_CUBE_ARRAY)
    735 		depth = texture->array_size / 6;
    736 
    737 	switch (tmp->surface.u.legacy.level[offset_level].mode) {
    738 	default:
    739 	case RADEON_SURF_MODE_LINEAR_ALIGNED:
    740 		array_mode = V_038000_ARRAY_LINEAR_ALIGNED;
    741 		break;
    742 	case RADEON_SURF_MODE_1D:
    743 		array_mode = V_038000_ARRAY_1D_TILED_THIN1;
    744 		break;
    745 	case RADEON_SURF_MODE_2D:
    746 		array_mode = V_038000_ARRAY_2D_TILED_THIN1;
    747 		break;
    748 	}
    749 
    750 	view->tex_resource = &tmp->resource;
    751 	view->tex_resource_words[0] = (S_038000_DIM(r600_tex_dim(texture->target, texture->nr_samples)) |
    752 				       S_038000_TILE_MODE(array_mode) |
    753 				       S_038000_TILE_TYPE(tmp->non_disp_tiling) |
    754 				       S_038000_PITCH((pitch / 8) - 1) |
    755 				       S_038000_TEX_WIDTH(width - 1));
    756 	view->tex_resource_words[1] = (S_038004_TEX_HEIGHT(height - 1) |
    757 				       S_038004_TEX_DEPTH(depth - 1) |
    758 				       S_038004_DATA_FORMAT(format));
    759 	view->tex_resource_words[2] = tmp->surface.u.legacy.level[offset_level].offset >> 8;
    760 	if (offset_level >= tmp->resource.b.b.last_level) {
    761 		view->tex_resource_words[3] = tmp->surface.u.legacy.level[offset_level].offset >> 8;
    762 	} else {
    763 		view->tex_resource_words[3] = tmp->surface.u.legacy.level[offset_level + 1].offset >> 8;
    764 	}
    765 	view->tex_resource_words[4] = (word4 |
    766 				       S_038010_REQUEST_SIZE(1) |
    767 				       S_038010_ENDIAN_SWAP(endian) |
    768 				       S_038010_BASE_LEVEL(0));
    769 	view->tex_resource_words[5] = (S_038014_BASE_ARRAY(state->u.tex.first_layer) |
    770 				       S_038014_LAST_ARRAY(state->u.tex.last_layer));
    771 	if (texture->nr_samples > 1) {
    772 		/* LAST_LEVEL holds log2(nr_samples) for multisample textures */
    773 		view->tex_resource_words[5] |= S_038014_LAST_LEVEL(util_logbase2(texture->nr_samples));
    774 	} else {
    775 		view->tex_resource_words[5] |= S_038014_LAST_LEVEL(last_level);
    776 	}
    777 	view->tex_resource_words[6] = (S_038018_TYPE(V_038010_SQ_TEX_VTX_VALID_TEXTURE) |
    778 				       S_038018_MAX_ANISO(4 /* max 16 samples */));
    779 	return &view->base;
    780 }
    781 
    782 static struct pipe_sampler_view *
    783 r600_create_sampler_view(struct pipe_context *ctx,
    784 			 struct pipe_resource *tex,
    785 			 const struct pipe_sampler_view *state)
    786 {
    787 	return r600_create_sampler_view_custom(ctx, tex, state,
    788                                                u_minify(tex->width0, state->u.tex.first_level),
    789                                                u_minify(tex->height0, state->u.tex.first_level));
    790 }
    791 
    792 static void r600_emit_clip_state(struct r600_context *rctx, struct r600_atom *atom)
    793 {
    794 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
    795 	struct pipe_clip_state *state = &rctx->clip_state.state;
    796 
    797 	radeon_set_context_reg_seq(cs, R_028E20_PA_CL_UCP0_X, 6*4);
    798 	radeon_emit_array(cs, (unsigned*)state, 6*4);
    799 }
    800 
    801 static void r600_set_polygon_stipple(struct pipe_context *ctx,
    802 					 const struct pipe_poly_stipple *state)
    803 {
    804 }
    805 
    806 static void r600_init_color_surface(struct r600_context *rctx,
    807 				    struct r600_surface *surf,
    808 				    bool force_cmask_fmask)
    809 {
    810 	struct r600_screen *rscreen = rctx->screen;
    811 	struct r600_texture *rtex = (struct r600_texture*)surf->base.texture;
    812 	unsigned level = surf->base.u.tex.level;
    813 	unsigned pitch, slice;
    814 	unsigned color_info;
    815 	unsigned color_view;
    816 	unsigned format, swap, ntype, endian;
    817 	unsigned offset;
    818 	const struct util_format_description *desc;
    819 	int i;
    820 	bool blend_bypass = 0, blend_clamp = 0, do_endian_swap = FALSE;
    821 
    822 	if (rtex->db_compatible && !r600_can_sample_zs(rtex, false)) {
    823 		r600_init_flushed_depth_texture(&rctx->b.b, surf->base.texture, NULL);
    824 		rtex = rtex->flushed_depth_texture;
    825 		assert(rtex);
    826 	}
    827 
    828 	offset = rtex->surface.u.legacy.level[level].offset;
    829 	color_view = S_028080_SLICE_START(surf->base.u.tex.first_layer) |
    830 		     S_028080_SLICE_MAX(surf->base.u.tex.last_layer);
    831 
    832 	pitch = rtex->surface.u.legacy.level[level].nblk_x / 8 - 1;
    833 	slice = (rtex->surface.u.legacy.level[level].nblk_x * rtex->surface.u.legacy.level[level].nblk_y) / 64;
    834 	if (slice) {
    835 		slice = slice - 1;
    836 	}
    837 	color_info = 0;
    838 	switch (rtex->surface.u.legacy.level[level].mode) {
    839 	default:
    840 	case RADEON_SURF_MODE_LINEAR_ALIGNED:
    841 		color_info = S_0280A0_ARRAY_MODE(V_038000_ARRAY_LINEAR_ALIGNED);
    842 		break;
    843 	case RADEON_SURF_MODE_1D:
    844 		color_info = S_0280A0_ARRAY_MODE(V_038000_ARRAY_1D_TILED_THIN1);
    845 		break;
    846 	case RADEON_SURF_MODE_2D:
    847 		color_info = S_0280A0_ARRAY_MODE(V_038000_ARRAY_2D_TILED_THIN1);
    848 		break;
    849 	}
    850 
    851 	desc = util_format_description(surf->base.format);
    852 
    853 	for (i = 0; i < 4; i++) {
    854 		if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
    855 			break;
    856 		}
    857 	}
    858 
    859 	ntype = V_0280A0_NUMBER_UNORM;
    860 	if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
    861 		ntype = V_0280A0_NUMBER_SRGB;
    862 	else if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
    863 		if (desc->channel[i].normalized)
    864 			ntype = V_0280A0_NUMBER_SNORM;
    865 		else if (desc->channel[i].pure_integer)
    866 			ntype = V_0280A0_NUMBER_SINT;
    867 	} else if (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) {
    868 		if (desc->channel[i].normalized)
    869 			ntype = V_0280A0_NUMBER_UNORM;
    870 		else if (desc->channel[i].pure_integer)
    871 			ntype = V_0280A0_NUMBER_UINT;
    872 	} else if (desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT) {
    873 		ntype = V_0280A0_NUMBER_FLOAT;
    874 	}
    875 
    876 	if (R600_BIG_ENDIAN)
    877 		do_endian_swap = !rtex->db_compatible;
    878 
    879 	format = r600_translate_colorformat(rctx->b.chip_class, surf->base.format,
    880 			                              do_endian_swap);
    881 	assert(format != ~0);
    882 
    883 	swap = r600_translate_colorswap(surf->base.format, do_endian_swap);
    884 	assert(swap != ~0);
    885 
    886 	endian = r600_colorformat_endian_swap(format, do_endian_swap);
    887 
    888 	/* blend clamp should be set for all NORM/SRGB types */
    889 	if (ntype == V_0280A0_NUMBER_UNORM || ntype == V_0280A0_NUMBER_SNORM ||
    890 	    ntype == V_0280A0_NUMBER_SRGB)
    891 		blend_clamp = 1;
    892 
    893 	/* set blend bypass according to docs if SINT/UINT or
    894 	   8/24 COLOR variants */
    895 	if (ntype == V_0280A0_NUMBER_UINT || ntype == V_0280A0_NUMBER_SINT ||
    896 	    format == V_0280A0_COLOR_8_24 || format == V_0280A0_COLOR_24_8 ||
    897 	    format == V_0280A0_COLOR_X24_8_32_FLOAT) {
    898 		blend_clamp = 0;
    899 		blend_bypass = 1;
    900 	}
    901 
    902 	surf->alphatest_bypass = ntype == V_0280A0_NUMBER_UINT || ntype == V_0280A0_NUMBER_SINT;
    903 
    904 	color_info |= S_0280A0_FORMAT(format) |
    905 		S_0280A0_COMP_SWAP(swap) |
    906 		S_0280A0_BLEND_BYPASS(blend_bypass) |
    907 		S_0280A0_BLEND_CLAMP(blend_clamp) |
    908 		S_0280A0_SIMPLE_FLOAT(1) |
    909 		S_0280A0_NUMBER_TYPE(ntype) |
    910 		S_0280A0_ENDIAN(endian);
    911 
    912 	/* EXPORT_NORM is an optimzation that can be enabled for better
    913 	 * performance in certain cases
    914 	 */
    915 	if (rctx->b.chip_class == R600) {
    916 		/* EXPORT_NORM can be enabled if:
    917 		 * - 11-bit or smaller UNORM/SNORM/SRGB
    918 		 * - BLEND_CLAMP is enabled
    919 		 * - BLEND_FLOAT32 is disabled
    920 		 */
    921 		if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
    922 		    (desc->channel[i].size < 12 &&
    923 		     desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT &&
    924 		     ntype != V_0280A0_NUMBER_UINT &&
    925 		     ntype != V_0280A0_NUMBER_SINT) &&
    926 		    G_0280A0_BLEND_CLAMP(color_info) &&
    927 		    /* XXX this condition is always true since BLEND_FLOAT32 is never set (bug?). */
    928 		    !G_0280A0_BLEND_FLOAT32(color_info)) {
    929 			color_info |= S_0280A0_SOURCE_FORMAT(V_0280A0_EXPORT_NORM);
    930 			surf->export_16bpc = true;
    931 		}
    932 	} else {
    933 		/* EXPORT_NORM can be enabled if:
    934 		 * - 11-bit or smaller UNORM/SNORM/SRGB
    935 		 * - 16-bit or smaller FLOAT
    936 		 */
    937 		if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS &&
    938 		    ((desc->channel[i].size < 12 &&
    939 		      desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT &&
    940 		      ntype != V_0280A0_NUMBER_UINT && ntype != V_0280A0_NUMBER_SINT) ||
    941 		    (desc->channel[i].size < 17 &&
    942 		     desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT))) {
    943 			color_info |= S_0280A0_SOURCE_FORMAT(V_0280A0_EXPORT_NORM);
    944 			surf->export_16bpc = true;
    945 		}
    946 	}
    947 
    948 	/* These might not always be initialized to zero. */
    949 	surf->cb_color_base = offset >> 8;
    950 	surf->cb_color_size = S_028060_PITCH_TILE_MAX(pitch) |
    951 			      S_028060_SLICE_TILE_MAX(slice);
    952 	surf->cb_color_fmask = surf->cb_color_base;
    953 	surf->cb_color_cmask = surf->cb_color_base;
    954 	surf->cb_color_mask = 0;
    955 
    956 	r600_resource_reference(&surf->cb_buffer_cmask, &rtex->resource);
    957 	r600_resource_reference(&surf->cb_buffer_fmask, &rtex->resource);
    958 
    959 	if (rtex->cmask.size) {
    960 		surf->cb_color_cmask = rtex->cmask.offset >> 8;
    961 		surf->cb_color_mask |= S_028100_CMASK_BLOCK_MAX(rtex->cmask.slice_tile_max);
    962 
    963 		if (rtex->fmask.size) {
    964 			color_info |= S_0280A0_TILE_MODE(V_0280A0_FRAG_ENABLE);
    965 			surf->cb_color_fmask = rtex->fmask.offset >> 8;
    966 			surf->cb_color_mask |= S_028100_FMASK_TILE_MAX(rtex->fmask.slice_tile_max);
    967 		} else { /* cmask only */
    968 			color_info |= S_0280A0_TILE_MODE(V_0280A0_CLEAR_ENABLE);
    969 		}
    970 	} else if (force_cmask_fmask) {
    971 		/* Allocate dummy FMASK and CMASK if they aren't allocated already.
    972 		 *
    973 		 * R6xx needs FMASK and CMASK for the destination buffer of color resolve,
    974 		 * otherwise it hangs. We don't have FMASK and CMASK pre-allocated,
    975 		 * because it's not an MSAA buffer.
    976 		 */
    977 		struct r600_cmask_info cmask;
    978 		struct r600_fmask_info fmask;
    979 
    980 		r600_texture_get_cmask_info(&rscreen->b, rtex, &cmask);
    981 		r600_texture_get_fmask_info(&rscreen->b, rtex, 8, &fmask);
    982 
    983 		/* CMASK. */
    984 		if (!rctx->dummy_cmask ||
    985 		    rctx->dummy_cmask->b.b.width0 < cmask.size ||
    986 		    rctx->dummy_cmask->buf->alignment % cmask.alignment != 0) {
    987 			struct pipe_transfer *transfer;
    988 			void *ptr;
    989 
    990 			r600_resource_reference(&rctx->dummy_cmask, NULL);
    991 			rctx->dummy_cmask = (struct r600_resource*)
    992 				r600_aligned_buffer_create(&rscreen->b.b, 0,
    993 							   PIPE_USAGE_DEFAULT,
    994 							   cmask.size, cmask.alignment);
    995 
    996 			if (unlikely(!rctx->dummy_cmask)) {
    997 				surf->color_initialized = false;
    998 				return;
    999 			}
   1000 
   1001 			/* Set the contents to 0xCC. */
   1002 			ptr = pipe_buffer_map(&rctx->b.b, &rctx->dummy_cmask->b.b, PIPE_TRANSFER_WRITE, &transfer);
   1003 			memset(ptr, 0xCC, cmask.size);
   1004 			pipe_buffer_unmap(&rctx->b.b, transfer);
   1005 		}
   1006 		r600_resource_reference(&surf->cb_buffer_cmask, rctx->dummy_cmask);
   1007 
   1008 		/* FMASK. */
   1009 		if (!rctx->dummy_fmask ||
   1010 		    rctx->dummy_fmask->b.b.width0 < fmask.size ||
   1011 		    rctx->dummy_fmask->buf->alignment % fmask.alignment != 0) {
   1012 			r600_resource_reference(&rctx->dummy_fmask, NULL);
   1013 			rctx->dummy_fmask = (struct r600_resource*)
   1014 				r600_aligned_buffer_create(&rscreen->b.b, 0,
   1015 							   PIPE_USAGE_DEFAULT,
   1016 							   fmask.size, fmask.alignment);
   1017 
   1018 			if (unlikely(!rctx->dummy_fmask)) {
   1019 				surf->color_initialized = false;
   1020 				return;
   1021 			}
   1022 		}
   1023 		r600_resource_reference(&surf->cb_buffer_fmask, rctx->dummy_fmask);
   1024 
   1025 		/* Init the registers. */
   1026 		color_info |= S_0280A0_TILE_MODE(V_0280A0_FRAG_ENABLE);
   1027 		surf->cb_color_cmask = 0;
   1028 		surf->cb_color_fmask = 0;
   1029 		surf->cb_color_mask = S_028100_CMASK_BLOCK_MAX(cmask.slice_tile_max) |
   1030 				      S_028100_FMASK_TILE_MAX(fmask.slice_tile_max);
   1031 	}
   1032 
   1033 	surf->cb_color_info = color_info;
   1034 	surf->cb_color_view = color_view;
   1035 	surf->color_initialized = true;
   1036 }
   1037 
   1038 static void r600_init_depth_surface(struct r600_context *rctx,
   1039 				    struct r600_surface *surf)
   1040 {
   1041 	struct r600_texture *rtex = (struct r600_texture*)surf->base.texture;
   1042 	unsigned level, pitch, slice, format, offset, array_mode;
   1043 
   1044 	level = surf->base.u.tex.level;
   1045 	offset = rtex->surface.u.legacy.level[level].offset;
   1046 	pitch = rtex->surface.u.legacy.level[level].nblk_x / 8 - 1;
   1047 	slice = (rtex->surface.u.legacy.level[level].nblk_x * rtex->surface.u.legacy.level[level].nblk_y) / 64;
   1048 	if (slice) {
   1049 		slice = slice - 1;
   1050 	}
   1051 	switch (rtex->surface.u.legacy.level[level].mode) {
   1052 	case RADEON_SURF_MODE_2D:
   1053 		array_mode = V_0280A0_ARRAY_2D_TILED_THIN1;
   1054 		break;
   1055 	case RADEON_SURF_MODE_1D:
   1056 	case RADEON_SURF_MODE_LINEAR_ALIGNED:
   1057 	default:
   1058 		array_mode = V_0280A0_ARRAY_1D_TILED_THIN1;
   1059 		break;
   1060 	}
   1061 
   1062 	format = r600_translate_dbformat(surf->base.format);
   1063 	assert(format != ~0);
   1064 
   1065 	surf->db_depth_info = S_028010_ARRAY_MODE(array_mode) | S_028010_FORMAT(format);
   1066 	surf->db_depth_base = offset >> 8;
   1067 	surf->db_depth_view = S_028004_SLICE_START(surf->base.u.tex.first_layer) |
   1068 			      S_028004_SLICE_MAX(surf->base.u.tex.last_layer);
   1069 	surf->db_depth_size = S_028000_PITCH_TILE_MAX(pitch) | S_028000_SLICE_TILE_MAX(slice);
   1070 	surf->db_prefetch_limit = (rtex->surface.u.legacy.level[level].nblk_y / 8) - 1;
   1071 
   1072 	if (r600_htile_enabled(rtex, level)) {
   1073 		surf->db_htile_data_base = rtex->htile_offset >> 8;
   1074 		surf->db_htile_surface = S_028D24_HTILE_WIDTH(1) |
   1075 					 S_028D24_HTILE_HEIGHT(1) |
   1076 					 S_028D24_FULL_CACHE(1);
   1077 		/* preload is not working properly on r6xx/r7xx */
   1078 		surf->db_depth_info |= S_028010_TILE_SURFACE_ENABLE(1);
   1079 	}
   1080 
   1081 	surf->depth_initialized = true;
   1082 }
   1083 
   1084 static void r600_set_framebuffer_state(struct pipe_context *ctx,
   1085 					const struct pipe_framebuffer_state *state)
   1086 {
   1087 	struct r600_context *rctx = (struct r600_context *)ctx;
   1088 	struct r600_surface *surf;
   1089 	struct r600_texture *rtex;
   1090 	unsigned i;
   1091 
   1092 	/* Flush TC when changing the framebuffer state, because the only
   1093 	 * client not using TC that can change textures is the framebuffer.
   1094 	 * Other places don't typically have to flush TC.
   1095 	 */
   1096 	rctx->b.flags |= R600_CONTEXT_WAIT_3D_IDLE |
   1097 			 R600_CONTEXT_FLUSH_AND_INV |
   1098 			 R600_CONTEXT_FLUSH_AND_INV_CB |
   1099 			 R600_CONTEXT_FLUSH_AND_INV_CB_META |
   1100 			 R600_CONTEXT_FLUSH_AND_INV_DB |
   1101 			 R600_CONTEXT_FLUSH_AND_INV_DB_META |
   1102 			 R600_CONTEXT_INV_TEX_CACHE;
   1103 
   1104 	/* Set the new state. */
   1105 	util_copy_framebuffer_state(&rctx->framebuffer.state, state);
   1106 
   1107 	rctx->framebuffer.export_16bpc = state->nr_cbufs != 0;
   1108 	rctx->framebuffer.cb0_is_integer = state->nr_cbufs && state->cbufs[0] &&
   1109 			       util_format_is_pure_integer(state->cbufs[0]->format);
   1110 	rctx->framebuffer.compressed_cb_mask = 0;
   1111 	rctx->framebuffer.is_msaa_resolve = state->nr_cbufs == 2 &&
   1112 					    state->cbufs[0] && state->cbufs[1] &&
   1113 					    state->cbufs[0]->texture->nr_samples > 1 &&
   1114 				            state->cbufs[1]->texture->nr_samples <= 1;
   1115 	rctx->framebuffer.nr_samples = util_framebuffer_get_num_samples(state);
   1116 
   1117 	/* Colorbuffers. */
   1118 	for (i = 0; i < state->nr_cbufs; i++) {
   1119 		/* The resolve buffer must have CMASK and FMASK to prevent hardlocks on R6xx. */
   1120 		bool force_cmask_fmask = rctx->b.chip_class == R600 &&
   1121 					 rctx->framebuffer.is_msaa_resolve &&
   1122 					 i == 1;
   1123 
   1124 		surf = (struct r600_surface*)state->cbufs[i];
   1125 		if (!surf)
   1126 			continue;
   1127 
   1128 		rtex = (struct r600_texture*)surf->base.texture;
   1129 		r600_context_add_resource_size(ctx, state->cbufs[i]->texture);
   1130 
   1131 		if (!surf->color_initialized || force_cmask_fmask) {
   1132 			r600_init_color_surface(rctx, surf, force_cmask_fmask);
   1133 			if (force_cmask_fmask) {
   1134 				/* re-initialize later without compression */
   1135 				surf->color_initialized = false;
   1136 			}
   1137 		}
   1138 
   1139 		if (!surf->export_16bpc) {
   1140 			rctx->framebuffer.export_16bpc = false;
   1141 		}
   1142 
   1143 		if (rtex->fmask.size) {
   1144 			rctx->framebuffer.compressed_cb_mask |= 1 << i;
   1145 		}
   1146 	}
   1147 
   1148 	/* Update alpha-test state dependencies.
   1149 	 * Alpha-test is done on the first colorbuffer only. */
   1150 	if (state->nr_cbufs) {
   1151 		bool alphatest_bypass = false;
   1152 
   1153 		surf = (struct r600_surface*)state->cbufs[0];
   1154 		if (surf) {
   1155 			alphatest_bypass = surf->alphatest_bypass;
   1156 		}
   1157 
   1158 		if (rctx->alphatest_state.bypass != alphatest_bypass) {
   1159 			rctx->alphatest_state.bypass = alphatest_bypass;
   1160 			r600_mark_atom_dirty(rctx, &rctx->alphatest_state.atom);
   1161 		}
   1162 	}
   1163 
   1164 	/* ZS buffer. */
   1165 	if (state->zsbuf) {
   1166 		surf = (struct r600_surface*)state->zsbuf;
   1167 
   1168 		r600_context_add_resource_size(ctx, state->zsbuf->texture);
   1169 
   1170 		if (!surf->depth_initialized) {
   1171 			r600_init_depth_surface(rctx, surf);
   1172 		}
   1173 
   1174 		if (state->zsbuf->format != rctx->poly_offset_state.zs_format) {
   1175 			rctx->poly_offset_state.zs_format = state->zsbuf->format;
   1176 			r600_mark_atom_dirty(rctx, &rctx->poly_offset_state.atom);
   1177 		}
   1178 
   1179 		if (rctx->db_state.rsurf != surf) {
   1180 			rctx->db_state.rsurf = surf;
   1181 			r600_mark_atom_dirty(rctx, &rctx->db_state.atom);
   1182 			r600_mark_atom_dirty(rctx, &rctx->db_misc_state.atom);
   1183 		}
   1184 	} else if (rctx->db_state.rsurf) {
   1185 		rctx->db_state.rsurf = NULL;
   1186 		r600_mark_atom_dirty(rctx, &rctx->db_state.atom);
   1187 		r600_mark_atom_dirty(rctx, &rctx->db_misc_state.atom);
   1188 	}
   1189 
   1190 	if (rctx->cb_misc_state.nr_cbufs != state->nr_cbufs) {
   1191 		rctx->cb_misc_state.nr_cbufs = state->nr_cbufs;
   1192 		r600_mark_atom_dirty(rctx, &rctx->cb_misc_state.atom);
   1193 	}
   1194 
   1195 	if (state->nr_cbufs == 0 && rctx->alphatest_state.bypass) {
   1196 		rctx->alphatest_state.bypass = false;
   1197 		r600_mark_atom_dirty(rctx, &rctx->alphatest_state.atom);
   1198 	}
   1199 
   1200 	/* Calculate the CS size. */
   1201 	rctx->framebuffer.atom.num_dw =
   1202 		10 /*COLOR_INFO*/ + 4 /*SCISSOR*/ + 3 /*SHADER_CONTROL*/ + 8 /*MSAA*/;
   1203 
   1204 	if (rctx->framebuffer.state.nr_cbufs) {
   1205 		rctx->framebuffer.atom.num_dw += 15 * rctx->framebuffer.state.nr_cbufs;
   1206 		rctx->framebuffer.atom.num_dw += 3 * (2 + rctx->framebuffer.state.nr_cbufs);
   1207 	}
   1208 	if (rctx->framebuffer.state.zsbuf) {
   1209 		rctx->framebuffer.atom.num_dw += 16;
   1210 	} else if (rctx->screen->b.info.drm_minor >= 18) {
   1211 		rctx->framebuffer.atom.num_dw += 3;
   1212 	}
   1213 	if (rctx->b.family > CHIP_R600 && rctx->b.family < CHIP_RV770) {
   1214 		rctx->framebuffer.atom.num_dw += 2;
   1215 	}
   1216 
   1217 	r600_mark_atom_dirty(rctx, &rctx->framebuffer.atom);
   1218 
   1219 	r600_set_sample_locations_constant_buffer(rctx);
   1220 	rctx->framebuffer.do_update_surf_dirtiness = true;
   1221 }
   1222 
   1223 static uint32_t sample_locs_2x[] = {
   1224 	FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
   1225 	FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4),
   1226 };
   1227 static unsigned max_dist_2x = 4;
   1228 
   1229 static uint32_t sample_locs_4x[] = {
   1230 	FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
   1231 	FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6),
   1232 };
   1233 static unsigned max_dist_4x = 6;
   1234 static uint32_t sample_locs_8x[] = {
   1235 	FILL_SREG(-1,  1,  1,  5,  3, -5,  5,  3),
   1236 	FILL_SREG(-7, -1, -3, -7,  7, -3, -5,  7),
   1237 };
   1238 static unsigned max_dist_8x = 7;
   1239 
   1240 static void r600_get_sample_position(struct pipe_context *ctx,
   1241 				     unsigned sample_count,
   1242 				     unsigned sample_index,
   1243 				     float *out_value)
   1244 {
   1245 	int offset, index;
   1246 	struct {
   1247 		int idx:4;
   1248 	} val;
   1249 	switch (sample_count) {
   1250 	case 1:
   1251 	default:
   1252 		out_value[0] = out_value[1] = 0.5;
   1253 		break;
   1254 	case 2:
   1255 		offset = 4 * (sample_index * 2);
   1256 		val.idx = (sample_locs_2x[0] >> offset) & 0xf;
   1257 		out_value[0] = (float)(val.idx + 8) / 16.0f;
   1258 		val.idx = (sample_locs_2x[0] >> (offset + 4)) & 0xf;
   1259 		out_value[1] = (float)(val.idx + 8) / 16.0f;
   1260 		break;
   1261 	case 4:
   1262 		offset = 4 * (sample_index * 2);
   1263 		val.idx = (sample_locs_4x[0] >> offset) & 0xf;
   1264 		out_value[0] = (float)(val.idx + 8) / 16.0f;
   1265 		val.idx = (sample_locs_4x[0] >> (offset + 4)) & 0xf;
   1266 		out_value[1] = (float)(val.idx + 8) / 16.0f;
   1267 		break;
   1268 	case 8:
   1269 		offset = 4 * (sample_index % 4 * 2);
   1270 		index = (sample_index / 4);
   1271 		val.idx = (sample_locs_8x[index] >> offset) & 0xf;
   1272 		out_value[0] = (float)(val.idx + 8) / 16.0f;
   1273 		val.idx = (sample_locs_8x[index] >> (offset + 4)) & 0xf;
   1274 		out_value[1] = (float)(val.idx + 8) / 16.0f;
   1275 		break;
   1276 	}
   1277 }
   1278 
   1279 static void r600_emit_msaa_state(struct r600_context *rctx, int nr_samples)
   1280 {
   1281 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1282 	unsigned max_dist = 0;
   1283 
   1284 	if (rctx->b.family == CHIP_R600) {
   1285 		switch (nr_samples) {
   1286 		default:
   1287 			nr_samples = 0;
   1288 			break;
   1289 		case 2:
   1290 			radeon_set_config_reg(cs, R_008B40_PA_SC_AA_SAMPLE_LOCS_2S, sample_locs_2x[0]);
   1291 			max_dist = max_dist_2x;
   1292 			break;
   1293 		case 4:
   1294 			radeon_set_config_reg(cs, R_008B44_PA_SC_AA_SAMPLE_LOCS_4S, sample_locs_4x[0]);
   1295 			max_dist = max_dist_4x;
   1296 			break;
   1297 		case 8:
   1298 			radeon_set_config_reg_seq(cs, R_008B48_PA_SC_AA_SAMPLE_LOCS_8S_WD0, 2);
   1299 			radeon_emit(cs, sample_locs_8x[0]); /* R_008B48_PA_SC_AA_SAMPLE_LOCS_8S_WD0 */
   1300 			radeon_emit(cs, sample_locs_8x[1]); /* R_008B4C_PA_SC_AA_SAMPLE_LOCS_8S_WD1 */
   1301 			max_dist = max_dist_8x;
   1302 			break;
   1303 		}
   1304 	} else {
   1305 		switch (nr_samples) {
   1306 		default:
   1307 			radeon_set_context_reg_seq(cs, R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX, 2);
   1308 			radeon_emit(cs, 0); /* R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX */
   1309 			radeon_emit(cs, 0); /* R_028C20_PA_SC_AA_SAMPLE_LOCS_8D_WD1_MCTX */
   1310 			nr_samples = 0;
   1311 			break;
   1312 		case 2:
   1313 			radeon_set_context_reg_seq(cs, R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX, 2);
   1314 			radeon_emit(cs, sample_locs_2x[0]); /* R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX */
   1315 			radeon_emit(cs, sample_locs_2x[1]); /* R_028C20_PA_SC_AA_SAMPLE_LOCS_8D_WD1_MCTX */
   1316 			max_dist = max_dist_2x;
   1317 			break;
   1318 		case 4:
   1319 			radeon_set_context_reg_seq(cs, R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX, 2);
   1320 			radeon_emit(cs, sample_locs_4x[0]); /* R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX */
   1321 			radeon_emit(cs, sample_locs_4x[1]); /* R_028C20_PA_SC_AA_SAMPLE_LOCS_8D_WD1_MCTX */
   1322 			max_dist = max_dist_4x;
   1323 			break;
   1324 		case 8:
   1325 			radeon_set_context_reg_seq(cs, R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX, 2);
   1326 			radeon_emit(cs, sample_locs_8x[0]); /* R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX */
   1327 			radeon_emit(cs, sample_locs_8x[1]); /* R_028C20_PA_SC_AA_SAMPLE_LOCS_8D_WD1_MCTX */
   1328 			max_dist = max_dist_8x;
   1329 			break;
   1330 		}
   1331 	}
   1332 
   1333 	if (nr_samples > 1) {
   1334 		radeon_set_context_reg_seq(cs, R_028C00_PA_SC_LINE_CNTL, 2);
   1335 		radeon_emit(cs, S_028C00_LAST_PIXEL(1) |
   1336 				     S_028C00_EXPAND_LINE_WIDTH(1)); /* R_028C00_PA_SC_LINE_CNTL */
   1337 		radeon_emit(cs, S_028C04_MSAA_NUM_SAMPLES(util_logbase2(nr_samples)) |
   1338 				     S_028C04_MAX_SAMPLE_DIST(max_dist)); /* R_028C04_PA_SC_AA_CONFIG */
   1339 	} else {
   1340 		radeon_set_context_reg_seq(cs, R_028C00_PA_SC_LINE_CNTL, 2);
   1341 		radeon_emit(cs, S_028C00_LAST_PIXEL(1)); /* R_028C00_PA_SC_LINE_CNTL */
   1342 		radeon_emit(cs, 0); /* R_028C04_PA_SC_AA_CONFIG */
   1343 	}
   1344 }
   1345 
   1346 static void r600_emit_framebuffer_state(struct r600_context *rctx, struct r600_atom *atom)
   1347 {
   1348 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1349 	struct pipe_framebuffer_state *state = &rctx->framebuffer.state;
   1350 	unsigned nr_cbufs = state->nr_cbufs;
   1351 	struct r600_surface **cb = (struct r600_surface**)&state->cbufs[0];
   1352 	unsigned i, sbu = 0;
   1353 
   1354 	/* Colorbuffers. */
   1355 	radeon_set_context_reg_seq(cs, R_0280A0_CB_COLOR0_INFO, 8);
   1356 	for (i = 0; i < nr_cbufs; i++) {
   1357 		radeon_emit(cs, cb[i] ? cb[i]->cb_color_info : 0);
   1358 	}
   1359 	/* set CB_COLOR1_INFO for possible dual-src blending */
   1360 	if (rctx->framebuffer.dual_src_blend && i == 1 && cb[0]) {
   1361 		radeon_emit(cs, cb[0]->cb_color_info);
   1362 		i++;
   1363 	}
   1364 	for (; i < 8; i++) {
   1365 		radeon_emit(cs, 0);
   1366 	}
   1367 
   1368 	if (nr_cbufs) {
   1369 		for (i = 0; i < nr_cbufs; i++) {
   1370 			unsigned reloc;
   1371 
   1372 			if (!cb[i])
   1373 				continue;
   1374 
   1375 			/* COLOR_BASE */
   1376 			radeon_set_context_reg(cs, R_028040_CB_COLOR0_BASE + i*4, cb[i]->cb_color_base);
   1377 
   1378 			reloc = radeon_add_to_buffer_list(&rctx->b,
   1379 						      &rctx->b.gfx,
   1380 						      (struct r600_resource*)cb[i]->base.texture,
   1381 						      RADEON_USAGE_READWRITE,
   1382 						      cb[i]->base.texture->nr_samples > 1 ?
   1383 							      RADEON_PRIO_COLOR_BUFFER_MSAA :
   1384 							      RADEON_PRIO_COLOR_BUFFER);
   1385 			radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1386 			radeon_emit(cs, reloc);
   1387 
   1388 			/* FMASK */
   1389 			radeon_set_context_reg(cs, R_0280E0_CB_COLOR0_FRAG + i*4, cb[i]->cb_color_fmask);
   1390 
   1391 			reloc = radeon_add_to_buffer_list(&rctx->b,
   1392 						      &rctx->b.gfx,
   1393 						      cb[i]->cb_buffer_fmask,
   1394 						      RADEON_USAGE_READWRITE,
   1395 						      cb[i]->base.texture->nr_samples > 1 ?
   1396 							      RADEON_PRIO_COLOR_BUFFER_MSAA :
   1397 							      RADEON_PRIO_COLOR_BUFFER);
   1398 			radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1399 			radeon_emit(cs, reloc);
   1400 
   1401 			/* CMASK */
   1402 			radeon_set_context_reg(cs, R_0280C0_CB_COLOR0_TILE + i*4, cb[i]->cb_color_cmask);
   1403 
   1404 			reloc = radeon_add_to_buffer_list(&rctx->b,
   1405 						      &rctx->b.gfx,
   1406 						      cb[i]->cb_buffer_cmask,
   1407 						      RADEON_USAGE_READWRITE,
   1408 						      cb[i]->base.texture->nr_samples > 1 ?
   1409 							      RADEON_PRIO_COLOR_BUFFER_MSAA :
   1410 							      RADEON_PRIO_COLOR_BUFFER);
   1411 			radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1412 			radeon_emit(cs, reloc);
   1413 		}
   1414 
   1415 		radeon_set_context_reg_seq(cs, R_028060_CB_COLOR0_SIZE, nr_cbufs);
   1416 		for (i = 0; i < nr_cbufs; i++) {
   1417 			radeon_emit(cs, cb[i] ? cb[i]->cb_color_size : 0);
   1418 		}
   1419 
   1420 		radeon_set_context_reg_seq(cs, R_028080_CB_COLOR0_VIEW, nr_cbufs);
   1421 		for (i = 0; i < nr_cbufs; i++) {
   1422 			radeon_emit(cs, cb[i] ? cb[i]->cb_color_view : 0);
   1423 		}
   1424 
   1425 		radeon_set_context_reg_seq(cs, R_028100_CB_COLOR0_MASK, nr_cbufs);
   1426 		for (i = 0; i < nr_cbufs; i++) {
   1427 			radeon_emit(cs, cb[i] ? cb[i]->cb_color_mask : 0);
   1428 		}
   1429 
   1430 		sbu |= SURFACE_BASE_UPDATE_COLOR_NUM(nr_cbufs);
   1431 	}
   1432 
   1433 	/* SURFACE_BASE_UPDATE */
   1434 	if (rctx->b.family > CHIP_R600 && rctx->b.family < CHIP_RV770 && sbu) {
   1435 		radeon_emit(cs, PKT3(PKT3_SURFACE_BASE_UPDATE, 0, 0));
   1436 		radeon_emit(cs, sbu);
   1437 		sbu = 0;
   1438 	}
   1439 
   1440 	/* Zbuffer. */
   1441 	if (state->zsbuf) {
   1442 		struct r600_surface *surf = (struct r600_surface*)state->zsbuf;
   1443 		unsigned reloc = radeon_add_to_buffer_list(&rctx->b,
   1444 						       &rctx->b.gfx,
   1445 						       (struct r600_resource*)state->zsbuf->texture,
   1446 						       RADEON_USAGE_READWRITE,
   1447 						       surf->base.texture->nr_samples > 1 ?
   1448 							       RADEON_PRIO_DEPTH_BUFFER_MSAA :
   1449 							       RADEON_PRIO_DEPTH_BUFFER);
   1450 
   1451 		radeon_set_context_reg_seq(cs, R_028000_DB_DEPTH_SIZE, 2);
   1452 		radeon_emit(cs, surf->db_depth_size); /* R_028000_DB_DEPTH_SIZE */
   1453 		radeon_emit(cs, surf->db_depth_view); /* R_028004_DB_DEPTH_VIEW */
   1454 		radeon_set_context_reg_seq(cs, R_02800C_DB_DEPTH_BASE, 2);
   1455 		radeon_emit(cs, surf->db_depth_base); /* R_02800C_DB_DEPTH_BASE */
   1456 		radeon_emit(cs, surf->db_depth_info); /* R_028010_DB_DEPTH_INFO */
   1457 
   1458 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1459 		radeon_emit(cs, reloc);
   1460 
   1461 		radeon_set_context_reg(cs, R_028D34_DB_PREFETCH_LIMIT, surf->db_prefetch_limit);
   1462 
   1463 		sbu |= SURFACE_BASE_UPDATE_DEPTH;
   1464 	} else if (rctx->screen->b.info.drm_minor >= 18) {
   1465 		/* DRM 2.6.18 allows the INVALID format to disable depth/stencil.
   1466 		 * Older kernels are out of luck. */
   1467 		radeon_set_context_reg(cs, R_028010_DB_DEPTH_INFO, S_028010_FORMAT(V_028010_DEPTH_INVALID));
   1468 	}
   1469 
   1470 	/* SURFACE_BASE_UPDATE */
   1471 	if (rctx->b.family > CHIP_R600 && rctx->b.family < CHIP_RV770 && sbu) {
   1472 		radeon_emit(cs, PKT3(PKT3_SURFACE_BASE_UPDATE, 0, 0));
   1473 		radeon_emit(cs, sbu);
   1474 		sbu = 0;
   1475 	}
   1476 
   1477 	/* Framebuffer dimensions. */
   1478 	radeon_set_context_reg_seq(cs, R_028204_PA_SC_WINDOW_SCISSOR_TL, 2);
   1479 	radeon_emit(cs, S_028240_TL_X(0) | S_028240_TL_Y(0) |
   1480 			     S_028240_WINDOW_OFFSET_DISABLE(1)); /* R_028204_PA_SC_WINDOW_SCISSOR_TL */
   1481 	radeon_emit(cs, S_028244_BR_X(state->width) |
   1482 			     S_028244_BR_Y(state->height)); /* R_028208_PA_SC_WINDOW_SCISSOR_BR */
   1483 
   1484 	if (rctx->framebuffer.is_msaa_resolve) {
   1485 		radeon_set_context_reg(cs, R_0287A0_CB_SHADER_CONTROL, 1);
   1486 	} else {
   1487 		/* Always enable the first colorbuffer in CB_SHADER_CONTROL. This
   1488 		 * will assure that the alpha-test will work even if there is
   1489 		 * no colorbuffer bound. */
   1490 		radeon_set_context_reg(cs, R_0287A0_CB_SHADER_CONTROL,
   1491 				       (1ull << MAX2(nr_cbufs, 1)) - 1);
   1492 	}
   1493 
   1494 	r600_emit_msaa_state(rctx, rctx->framebuffer.nr_samples);
   1495 }
   1496 
   1497 static void r600_set_min_samples(struct pipe_context *ctx, unsigned min_samples)
   1498 {
   1499 	struct r600_context *rctx = (struct r600_context *)ctx;
   1500 
   1501 	if (rctx->ps_iter_samples == min_samples)
   1502 		return;
   1503 
   1504 	rctx->ps_iter_samples = min_samples;
   1505 	if (rctx->framebuffer.nr_samples > 1) {
   1506 		r600_mark_atom_dirty(rctx, &rctx->rasterizer_state.atom);
   1507 		if (rctx->b.chip_class == R600)
   1508 			r600_mark_atom_dirty(rctx, &rctx->db_misc_state.atom);
   1509 	}
   1510 }
   1511 
   1512 static void r600_emit_cb_misc_state(struct r600_context *rctx, struct r600_atom *atom)
   1513 {
   1514 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1515 	struct r600_cb_misc_state *a = (struct r600_cb_misc_state*)atom;
   1516 
   1517 	if (G_028808_SPECIAL_OP(a->cb_color_control) == V_028808_SPECIAL_RESOLVE_BOX) {
   1518 		radeon_set_context_reg_seq(cs, R_028238_CB_TARGET_MASK, 2);
   1519 		if (rctx->b.chip_class == R600) {
   1520 			radeon_emit(cs, 0xff); /* R_028238_CB_TARGET_MASK */
   1521 			radeon_emit(cs, 0xff); /* R_02823C_CB_SHADER_MASK */
   1522 		} else {
   1523 			radeon_emit(cs, 0xf); /* R_028238_CB_TARGET_MASK */
   1524 			radeon_emit(cs, 0xf); /* R_02823C_CB_SHADER_MASK */
   1525 		}
   1526 		radeon_set_context_reg(cs, R_028808_CB_COLOR_CONTROL, a->cb_color_control);
   1527 	} else {
   1528 		unsigned fb_colormask = (1ULL << ((unsigned)a->nr_cbufs * 4)) - 1;
   1529 		unsigned ps_colormask = (1ULL << ((unsigned)a->nr_ps_color_outputs * 4)) - 1;
   1530 		unsigned multiwrite = a->multiwrite && a->nr_cbufs > 1;
   1531 
   1532 		radeon_set_context_reg_seq(cs, R_028238_CB_TARGET_MASK, 2);
   1533 		radeon_emit(cs, a->blend_colormask & fb_colormask); /* R_028238_CB_TARGET_MASK */
   1534 		/* Always enable the first color output to make sure alpha-test works even without one. */
   1535 		radeon_emit(cs, 0xf | (multiwrite ? fb_colormask : ps_colormask)); /* R_02823C_CB_SHADER_MASK */
   1536 		radeon_set_context_reg(cs, R_028808_CB_COLOR_CONTROL,
   1537 				       a->cb_color_control |
   1538 				       S_028808_MULTIWRITE_ENABLE(multiwrite));
   1539 	}
   1540 }
   1541 
   1542 static void r600_emit_db_state(struct r600_context *rctx, struct r600_atom *atom)
   1543 {
   1544 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1545 	struct r600_db_state *a = (struct r600_db_state*)atom;
   1546 
   1547 	if (a->rsurf && a->rsurf->db_htile_surface) {
   1548 		struct r600_texture *rtex = (struct r600_texture *)a->rsurf->base.texture;
   1549 		unsigned reloc_idx;
   1550 
   1551 		radeon_set_context_reg(cs, R_02802C_DB_DEPTH_CLEAR, fui(rtex->depth_clear_value));
   1552 		radeon_set_context_reg(cs, R_028D24_DB_HTILE_SURFACE, a->rsurf->db_htile_surface);
   1553 		radeon_set_context_reg(cs, R_028014_DB_HTILE_DATA_BASE, a->rsurf->db_htile_data_base);
   1554 		reloc_idx = radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, &rtex->resource,
   1555 						  RADEON_USAGE_READWRITE, RADEON_PRIO_HTILE);
   1556 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1557 		radeon_emit(cs, reloc_idx);
   1558 	} else {
   1559 		radeon_set_context_reg(cs, R_028D24_DB_HTILE_SURFACE, 0);
   1560 	}
   1561 }
   1562 
   1563 static void r600_emit_db_misc_state(struct r600_context *rctx, struct r600_atom *atom)
   1564 {
   1565 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1566 	struct r600_db_misc_state *a = (struct r600_db_misc_state*)atom;
   1567 	unsigned db_render_control = 0;
   1568 	unsigned db_render_override =
   1569 		S_028D10_FORCE_HIS_ENABLE0(V_028D10_FORCE_DISABLE) |
   1570 		S_028D10_FORCE_HIS_ENABLE1(V_028D10_FORCE_DISABLE);
   1571 
   1572 	if (rctx->b.chip_class >= R700) {
   1573 		switch (a->ps_conservative_z) {
   1574 		default: /* fall through */
   1575 		case TGSI_FS_DEPTH_LAYOUT_ANY:
   1576 			db_render_control |= S_028D0C_CONSERVATIVE_Z_EXPORT(V_028D0C_EXPORT_ANY_Z);
   1577 			break;
   1578 		case TGSI_FS_DEPTH_LAYOUT_GREATER:
   1579 			db_render_control |= S_028D0C_CONSERVATIVE_Z_EXPORT(V_028D0C_EXPORT_GREATER_THAN_Z);
   1580 			break;
   1581 		case TGSI_FS_DEPTH_LAYOUT_LESS:
   1582 			db_render_control |= S_028D0C_CONSERVATIVE_Z_EXPORT(V_028D0C_EXPORT_LESS_THAN_Z);
   1583 			break;
   1584 		}
   1585 	}
   1586 
   1587 	if (rctx->b.num_occlusion_queries > 0 &&
   1588 	    !a->occlusion_queries_disabled) {
   1589 		if (rctx->b.chip_class >= R700) {
   1590 			db_render_control |= S_028D0C_R700_PERFECT_ZPASS_COUNTS(1);
   1591 		}
   1592 		db_render_override |= S_028D10_NOOP_CULL_DISABLE(1);
   1593 	} else {
   1594 		db_render_control |= S_028D0C_ZPASS_INCREMENT_DISABLE(1);
   1595 	}
   1596 
   1597 	if (rctx->db_state.rsurf && rctx->db_state.rsurf->db_htile_surface) {
   1598 		/* FORCE_OFF means HiZ/HiS are determined by DB_SHADER_CONTROL */
   1599 		db_render_override |= S_028D10_FORCE_HIZ_ENABLE(V_028D10_FORCE_OFF);
   1600 		/* This is to fix a lockup when hyperz and alpha test are enabled at
   1601 		 * the same time somehow GPU get confuse on which order to pick for
   1602 		 * z test
   1603 		 */
   1604 		if (rctx->alphatest_state.sx_alpha_test_control) {
   1605 			db_render_override |= S_028D10_FORCE_SHADER_Z_ORDER(1);
   1606 		}
   1607 	} else {
   1608 		db_render_override |= S_028D10_FORCE_HIZ_ENABLE(V_028D10_FORCE_DISABLE);
   1609 	}
   1610 	if (rctx->b.chip_class == R600 && rctx->framebuffer.nr_samples > 1 && rctx->ps_iter_samples > 0) {
   1611 		/* sample shading and hyperz causes lockups on R6xx chips */
   1612 		db_render_override |= S_028D10_FORCE_HIZ_ENABLE(V_028D10_FORCE_DISABLE);
   1613 	}
   1614 	if (a->flush_depthstencil_through_cb) {
   1615 		assert(a->copy_depth || a->copy_stencil);
   1616 
   1617 		db_render_control |= S_028D0C_DEPTH_COPY_ENABLE(a->copy_depth) |
   1618 				     S_028D0C_STENCIL_COPY_ENABLE(a->copy_stencil) |
   1619 				     S_028D0C_COPY_CENTROID(1) |
   1620 				     S_028D0C_COPY_SAMPLE(a->copy_sample);
   1621 
   1622 		if (rctx->b.chip_class == R600)
   1623 			db_render_override |= S_028D10_NOOP_CULL_DISABLE(1);
   1624 
   1625 		if (rctx->b.family == CHIP_RV610 || rctx->b.family == CHIP_RV630 ||
   1626 		    rctx->b.family == CHIP_RV620 || rctx->b.family == CHIP_RV635)
   1627 			db_render_override |= S_028D10_FORCE_HIZ_ENABLE(V_028D10_FORCE_DISABLE);
   1628 	} else if (a->flush_depth_inplace || a->flush_stencil_inplace) {
   1629 		db_render_control |= S_028D0C_DEPTH_COMPRESS_DISABLE(a->flush_depth_inplace) |
   1630 				     S_028D0C_STENCIL_COMPRESS_DISABLE(a->flush_stencil_inplace);
   1631 		db_render_override |= S_028D10_NOOP_CULL_DISABLE(1);
   1632 	}
   1633 	if (a->htile_clear) {
   1634 		db_render_control |= S_028D0C_DEPTH_CLEAR_ENABLE(1);
   1635 	}
   1636 
   1637 	/* RV770 workaround for a hang with 8x MSAA. */
   1638 	if (rctx->b.family == CHIP_RV770 && a->log_samples == 3) {
   1639 		db_render_override |= S_028D10_MAX_TILES_IN_DTT(6);
   1640 	}
   1641 
   1642 	radeon_set_context_reg_seq(cs, R_028D0C_DB_RENDER_CONTROL, 2);
   1643 	radeon_emit(cs, db_render_control); /* R_028D0C_DB_RENDER_CONTROL */
   1644 	radeon_emit(cs, db_render_override); /* R_028D10_DB_RENDER_OVERRIDE */
   1645 	radeon_set_context_reg(cs, R_02880C_DB_SHADER_CONTROL, a->db_shader_control);
   1646 }
   1647 
   1648 static void r600_emit_config_state(struct r600_context *rctx, struct r600_atom *atom)
   1649 {
   1650 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1651 	struct r600_config_state *a = (struct r600_config_state*)atom;
   1652 
   1653 	radeon_set_config_reg(cs, R_008C04_SQ_GPR_RESOURCE_MGMT_1, a->sq_gpr_resource_mgmt_1);
   1654 	radeon_set_config_reg(cs, R_008C08_SQ_GPR_RESOURCE_MGMT_2, a->sq_gpr_resource_mgmt_2);
   1655 }
   1656 
   1657 static void r600_emit_vertex_buffers(struct r600_context *rctx, struct r600_atom *atom)
   1658 {
   1659 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1660 	uint32_t dirty_mask = rctx->vertex_buffer_state.dirty_mask;
   1661 
   1662 	while (dirty_mask) {
   1663 		struct pipe_vertex_buffer *vb;
   1664 		struct r600_resource *rbuffer;
   1665 		unsigned offset;
   1666 		unsigned buffer_index = u_bit_scan(&dirty_mask);
   1667 
   1668 		vb = &rctx->vertex_buffer_state.vb[buffer_index];
   1669 		rbuffer = (struct r600_resource*)vb->buffer.resource;
   1670 		assert(rbuffer);
   1671 
   1672 		offset = vb->buffer_offset;
   1673 
   1674 		/* fetch resources start at index 320 (OFFSET_FS) */
   1675 		radeon_emit(cs, PKT3(PKT3_SET_RESOURCE, 7, 0));
   1676 		radeon_emit(cs, (R600_FETCH_CONSTANTS_OFFSET_FS + buffer_index) * 7);
   1677 		radeon_emit(cs, offset); /* RESOURCEi_WORD0 */
   1678 		radeon_emit(cs, rbuffer->b.b.width0 - offset - 1); /* RESOURCEi_WORD1 */
   1679 		radeon_emit(cs, /* RESOURCEi_WORD2 */
   1680 				 S_038008_ENDIAN_SWAP(r600_endian_swap(32)) |
   1681 				 S_038008_STRIDE(vb->stride));
   1682 		radeon_emit(cs, 0); /* RESOURCEi_WORD3 */
   1683 		radeon_emit(cs, 0); /* RESOURCEi_WORD4 */
   1684 		radeon_emit(cs, 0); /* RESOURCEi_WORD5 */
   1685 		radeon_emit(cs, 0xc0000000); /* RESOURCEi_WORD6 */
   1686 
   1687 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1688 		radeon_emit(cs, radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, rbuffer,
   1689 						      RADEON_USAGE_READ, RADEON_PRIO_VERTEX_BUFFER));
   1690 	}
   1691 }
   1692 
   1693 static void r600_emit_constant_buffers(struct r600_context *rctx,
   1694 				       struct r600_constbuf_state *state,
   1695 				       unsigned buffer_id_base,
   1696 				       unsigned reg_alu_constbuf_size,
   1697 				       unsigned reg_alu_const_cache)
   1698 {
   1699 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1700 	uint32_t dirty_mask = state->dirty_mask;
   1701 
   1702 	while (dirty_mask) {
   1703 		struct pipe_constant_buffer *cb;
   1704 		struct r600_resource *rbuffer;
   1705 		unsigned offset;
   1706 		unsigned buffer_index = ffs(dirty_mask) - 1;
   1707 		unsigned gs_ring_buffer = (buffer_index == R600_GS_RING_CONST_BUFFER);
   1708 		cb = &state->cb[buffer_index];
   1709 		rbuffer = (struct r600_resource*)cb->buffer;
   1710 		assert(rbuffer);
   1711 
   1712 		offset = cb->buffer_offset;
   1713 
   1714 		if (!gs_ring_buffer) {
   1715 			assert(buffer_index < R600_MAX_HW_CONST_BUFFERS);
   1716 			radeon_set_context_reg(cs, reg_alu_constbuf_size + buffer_index * 4,
   1717 					       DIV_ROUND_UP(cb->buffer_size, 256));
   1718 			radeon_set_context_reg(cs, reg_alu_const_cache + buffer_index * 4, offset >> 8);
   1719 			radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1720 			radeon_emit(cs, radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, rbuffer,
   1721 								  RADEON_USAGE_READ, RADEON_PRIO_CONST_BUFFER));
   1722 		}
   1723 
   1724 		radeon_emit(cs, PKT3(PKT3_SET_RESOURCE, 7, 0));
   1725 		radeon_emit(cs, (buffer_id_base + buffer_index) * 7);
   1726 		radeon_emit(cs, offset); /* RESOURCEi_WORD0 */
   1727 		radeon_emit(cs, rbuffer->b.b.width0 - offset - 1); /* RESOURCEi_WORD1 */
   1728 		radeon_emit(cs, /* RESOURCEi_WORD2 */
   1729 			    S_038008_ENDIAN_SWAP(gs_ring_buffer ? ENDIAN_NONE : r600_endian_swap(32)) |
   1730 			    S_038008_STRIDE(gs_ring_buffer ? 4 : 16));
   1731 		radeon_emit(cs, 0); /* RESOURCEi_WORD3 */
   1732 		radeon_emit(cs, 0); /* RESOURCEi_WORD4 */
   1733 		radeon_emit(cs, 0); /* RESOURCEi_WORD5 */
   1734 		radeon_emit(cs, 0xc0000000); /* RESOURCEi_WORD6 */
   1735 
   1736 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1737 		radeon_emit(cs, radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, rbuffer,
   1738 						      RADEON_USAGE_READ, RADEON_PRIO_CONST_BUFFER));
   1739 
   1740 		dirty_mask &= ~(1 << buffer_index);
   1741 	}
   1742 	state->dirty_mask = 0;
   1743 }
   1744 
   1745 static void r600_emit_vs_constant_buffers(struct r600_context *rctx, struct r600_atom *atom)
   1746 {
   1747 	r600_emit_constant_buffers(rctx, &rctx->constbuf_state[PIPE_SHADER_VERTEX],
   1748 				   R600_FETCH_CONSTANTS_OFFSET_VS,
   1749 				   R_028180_ALU_CONST_BUFFER_SIZE_VS_0,
   1750 				   R_028980_ALU_CONST_CACHE_VS_0);
   1751 }
   1752 
   1753 static void r600_emit_gs_constant_buffers(struct r600_context *rctx, struct r600_atom *atom)
   1754 {
   1755 	r600_emit_constant_buffers(rctx, &rctx->constbuf_state[PIPE_SHADER_GEOMETRY],
   1756 				   R600_FETCH_CONSTANTS_OFFSET_GS,
   1757 				   R_0281C0_ALU_CONST_BUFFER_SIZE_GS_0,
   1758 				   R_0289C0_ALU_CONST_CACHE_GS_0);
   1759 }
   1760 
   1761 static void r600_emit_ps_constant_buffers(struct r600_context *rctx, struct r600_atom *atom)
   1762 {
   1763 	r600_emit_constant_buffers(rctx, &rctx->constbuf_state[PIPE_SHADER_FRAGMENT],
   1764 				   R600_FETCH_CONSTANTS_OFFSET_PS,
   1765 				   R_028140_ALU_CONST_BUFFER_SIZE_PS_0,
   1766 				   R_028940_ALU_CONST_CACHE_PS_0);
   1767 }
   1768 
   1769 static void r600_emit_sampler_views(struct r600_context *rctx,
   1770 				    struct r600_samplerview_state *state,
   1771 				    unsigned resource_id_base)
   1772 {
   1773 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1774 	uint32_t dirty_mask = state->dirty_mask;
   1775 
   1776 	while (dirty_mask) {
   1777 		struct r600_pipe_sampler_view *rview;
   1778 		unsigned resource_index = u_bit_scan(&dirty_mask);
   1779 		unsigned reloc;
   1780 
   1781 		rview = state->views[resource_index];
   1782 		assert(rview);
   1783 
   1784 		radeon_emit(cs, PKT3(PKT3_SET_RESOURCE, 7, 0));
   1785 		radeon_emit(cs, (resource_id_base + resource_index) * 7);
   1786 		radeon_emit_array(cs, rview->tex_resource_words, 7);
   1787 
   1788 		reloc = radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, rview->tex_resource,
   1789 					      RADEON_USAGE_READ,
   1790 					      r600_get_sampler_view_priority(rview->tex_resource));
   1791 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1792 		radeon_emit(cs, reloc);
   1793 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1794 		radeon_emit(cs, reloc);
   1795 	}
   1796 	state->dirty_mask = 0;
   1797 }
   1798 
   1799 
   1800 static void r600_emit_vs_sampler_views(struct r600_context *rctx, struct r600_atom *atom)
   1801 {
   1802 	r600_emit_sampler_views(rctx, &rctx->samplers[PIPE_SHADER_VERTEX].views, R600_FETCH_CONSTANTS_OFFSET_VS + R600_MAX_CONST_BUFFERS);
   1803 }
   1804 
   1805 static void r600_emit_gs_sampler_views(struct r600_context *rctx, struct r600_atom *atom)
   1806 {
   1807 	r600_emit_sampler_views(rctx, &rctx->samplers[PIPE_SHADER_GEOMETRY].views, R600_FETCH_CONSTANTS_OFFSET_GS + R600_MAX_CONST_BUFFERS);
   1808 }
   1809 
   1810 static void r600_emit_ps_sampler_views(struct r600_context *rctx, struct r600_atom *atom)
   1811 {
   1812 	r600_emit_sampler_views(rctx, &rctx->samplers[PIPE_SHADER_FRAGMENT].views, R600_FETCH_CONSTANTS_OFFSET_PS + R600_MAX_CONST_BUFFERS);
   1813 }
   1814 
   1815 static void r600_emit_sampler_states(struct r600_context *rctx,
   1816 				struct r600_textures_info *texinfo,
   1817 				unsigned resource_id_base,
   1818 				unsigned border_color_reg)
   1819 {
   1820 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1821 	uint32_t dirty_mask = texinfo->states.dirty_mask;
   1822 
   1823 	while (dirty_mask) {
   1824 		struct r600_pipe_sampler_state *rstate;
   1825 		struct r600_pipe_sampler_view *rview;
   1826 		unsigned i = u_bit_scan(&dirty_mask);
   1827 
   1828 		rstate = texinfo->states.states[i];
   1829 		assert(rstate);
   1830 		rview = texinfo->views.views[i];
   1831 
   1832 		/* TEX_ARRAY_OVERRIDE must be set for array textures to disable
   1833 		 * filtering between layers.
   1834 		 * Don't update TEX_ARRAY_OVERRIDE if we don't have the sampler view.
   1835 		 */
   1836 		if (rview) {
   1837 			enum pipe_texture_target target = rview->base.texture->target;
   1838 			if (target == PIPE_TEXTURE_1D_ARRAY ||
   1839 			    target == PIPE_TEXTURE_2D_ARRAY) {
   1840 				rstate->tex_sampler_words[0] |= S_03C000_TEX_ARRAY_OVERRIDE(1);
   1841 				texinfo->is_array_sampler[i] = true;
   1842 			} else {
   1843 				rstate->tex_sampler_words[0] &= C_03C000_TEX_ARRAY_OVERRIDE;
   1844 				texinfo->is_array_sampler[i] = false;
   1845 			}
   1846 		}
   1847 
   1848 		radeon_emit(cs, PKT3(PKT3_SET_SAMPLER, 3, 0));
   1849 		radeon_emit(cs, (resource_id_base + i) * 3);
   1850 		radeon_emit_array(cs, rstate->tex_sampler_words, 3);
   1851 
   1852 		if (rstate->border_color_use) {
   1853 			unsigned offset;
   1854 
   1855 			offset = border_color_reg;
   1856 			offset += i * 16;
   1857 			radeon_set_config_reg_seq(cs, offset, 4);
   1858 			radeon_emit_array(cs, rstate->border_color.ui, 4);
   1859 		}
   1860 	}
   1861 	texinfo->states.dirty_mask = 0;
   1862 }
   1863 
   1864 static void r600_emit_vs_sampler_states(struct r600_context *rctx, struct r600_atom *atom)
   1865 {
   1866 	r600_emit_sampler_states(rctx, &rctx->samplers[PIPE_SHADER_VERTEX], 18, R_00A600_TD_VS_SAMPLER0_BORDER_RED);
   1867 }
   1868 
   1869 static void r600_emit_gs_sampler_states(struct r600_context *rctx, struct r600_atom *atom)
   1870 {
   1871 	r600_emit_sampler_states(rctx, &rctx->samplers[PIPE_SHADER_GEOMETRY], 36, R_00A800_TD_GS_SAMPLER0_BORDER_RED);
   1872 }
   1873 
   1874 static void r600_emit_ps_sampler_states(struct r600_context *rctx, struct r600_atom *atom)
   1875 {
   1876 	r600_emit_sampler_states(rctx, &rctx->samplers[PIPE_SHADER_FRAGMENT], 0, R_00A400_TD_PS_SAMPLER0_BORDER_RED);
   1877 }
   1878 
   1879 static void r600_emit_seamless_cube_map(struct r600_context *rctx, struct r600_atom *atom)
   1880 {
   1881 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1882 	unsigned tmp;
   1883 
   1884 	tmp = S_009508_DISABLE_CUBE_ANISO(1) |
   1885 		S_009508_SYNC_GRADIENT(1) |
   1886 		S_009508_SYNC_WALKER(1) |
   1887 		S_009508_SYNC_ALIGNER(1);
   1888 	if (!rctx->seamless_cube_map.enabled) {
   1889 		tmp |= S_009508_DISABLE_CUBE_WRAP(1);
   1890 	}
   1891 	radeon_set_config_reg(cs, R_009508_TA_CNTL_AUX, tmp);
   1892 }
   1893 
   1894 static void r600_emit_sample_mask(struct r600_context *rctx, struct r600_atom *a)
   1895 {
   1896 	struct r600_sample_mask *s = (struct r600_sample_mask*)a;
   1897 	uint8_t mask = s->sample_mask;
   1898 
   1899 	radeon_set_context_reg(rctx->b.gfx.cs, R_028C48_PA_SC_AA_MASK,
   1900 			       mask | (mask << 8) | (mask << 16) | (mask << 24));
   1901 }
   1902 
   1903 static void r600_emit_vertex_fetch_shader(struct r600_context *rctx, struct r600_atom *a)
   1904 {
   1905 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1906 	struct r600_cso_state *state = (struct r600_cso_state*)a;
   1907 	struct r600_fetch_shader *shader = (struct r600_fetch_shader*)state->cso;
   1908 
   1909 	if (!shader)
   1910 		return;
   1911 
   1912 	radeon_set_context_reg(cs, R_028894_SQ_PGM_START_FS, shader->offset >> 8);
   1913 	radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1914 	radeon_emit(cs, radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, shader->buffer,
   1915                                                   RADEON_USAGE_READ,
   1916                                                   RADEON_PRIO_SHADER_BINARY));
   1917 }
   1918 
   1919 static void r600_emit_shader_stages(struct r600_context *rctx, struct r600_atom *a)
   1920 {
   1921 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1922 	struct r600_shader_stages_state *state = (struct r600_shader_stages_state*)a;
   1923 
   1924 	uint32_t v2 = 0, primid = 0;
   1925 
   1926 	if (rctx->vs_shader->current->shader.vs_as_gs_a) {
   1927 		v2 = S_028A40_MODE(V_028A40_GS_SCENARIO_A);
   1928 		primid = 1;
   1929 	}
   1930 
   1931 	if (state->geom_enable) {
   1932 		uint32_t cut_val;
   1933 
   1934 		if (rctx->gs_shader->gs_max_out_vertices <= 128)
   1935 			cut_val = V_028A40_GS_CUT_128;
   1936 		else if (rctx->gs_shader->gs_max_out_vertices <= 256)
   1937 			cut_val = V_028A40_GS_CUT_256;
   1938 		else if (rctx->gs_shader->gs_max_out_vertices <= 512)
   1939 			cut_val = V_028A40_GS_CUT_512;
   1940 		else
   1941 			cut_val = V_028A40_GS_CUT_1024;
   1942 
   1943 		v2 = S_028A40_MODE(V_028A40_GS_SCENARIO_G) |
   1944 			S_028A40_CUT_MODE(cut_val);
   1945 
   1946 		if (rctx->gs_shader->current->shader.gs_prim_id_input)
   1947 			primid = 1;
   1948 	}
   1949 
   1950 	radeon_set_context_reg(cs, R_028A40_VGT_GS_MODE, v2);
   1951 	radeon_set_context_reg(cs, R_028A84_VGT_PRIMITIVEID_EN, primid);
   1952 }
   1953 
   1954 static void r600_emit_gs_rings(struct r600_context *rctx, struct r600_atom *a)
   1955 {
   1956 	struct radeon_winsys_cs *cs = rctx->b.gfx.cs;
   1957 	struct r600_gs_rings_state *state = (struct r600_gs_rings_state*)a;
   1958 	struct r600_resource *rbuffer;
   1959 
   1960 	radeon_set_config_reg(cs, R_008040_WAIT_UNTIL, S_008040_WAIT_3D_IDLE(1));
   1961 	radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
   1962 	radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_VGT_FLUSH));
   1963 
   1964 	if (state->enable) {
   1965 		rbuffer =(struct r600_resource*)state->esgs_ring.buffer;
   1966 		radeon_set_config_reg(cs, R_008C40_SQ_ESGS_RING_BASE, 0);
   1967 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1968 		radeon_emit(cs, radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, rbuffer,
   1969 						      RADEON_USAGE_READWRITE,
   1970 						      RADEON_PRIO_SHADER_RINGS));
   1971 		radeon_set_config_reg(cs, R_008C44_SQ_ESGS_RING_SIZE,
   1972 				state->esgs_ring.buffer_size >> 8);
   1973 
   1974 		rbuffer =(struct r600_resource*)state->gsvs_ring.buffer;
   1975 		radeon_set_config_reg(cs, R_008C48_SQ_GSVS_RING_BASE, 0);
   1976 		radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
   1977 		radeon_emit(cs, radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, rbuffer,
   1978 						      RADEON_USAGE_READWRITE,
   1979 						      RADEON_PRIO_SHADER_RINGS));
   1980 		radeon_set_config_reg(cs, R_008C4C_SQ_GSVS_RING_SIZE,
   1981 				state->gsvs_ring.buffer_size >> 8);
   1982 	} else {
   1983 		radeon_set_config_reg(cs, R_008C44_SQ_ESGS_RING_SIZE, 0);
   1984 		radeon_set_config_reg(cs, R_008C4C_SQ_GSVS_RING_SIZE, 0);
   1985 	}
   1986 
   1987 	radeon_set_config_reg(cs, R_008040_WAIT_UNTIL, S_008040_WAIT_3D_IDLE(1));
   1988 	radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
   1989 	radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_VGT_FLUSH));
   1990 }
   1991 
   1992 /* Adjust GPR allocation on R6xx/R7xx */
   1993 bool r600_adjust_gprs(struct r600_context *rctx)
   1994 {
   1995 	unsigned num_gprs[R600_NUM_HW_STAGES];
   1996 	unsigned new_gprs[R600_NUM_HW_STAGES];
   1997 	unsigned cur_gprs[R600_NUM_HW_STAGES];
   1998 	unsigned def_gprs[R600_NUM_HW_STAGES];
   1999 	unsigned def_num_clause_temp_gprs = rctx->r6xx_num_clause_temp_gprs;
   2000 	unsigned max_gprs;
   2001 	unsigned tmp, tmp2;
   2002 	unsigned i;
   2003 	bool need_recalc = false, use_default = true;
   2004 
   2005 	/* hardware will reserve twice num_clause_temp_gprs */
   2006 	max_gprs = def_num_clause_temp_gprs * 2;
   2007 	for (i = 0; i < R600_NUM_HW_STAGES; i++) {
   2008 		def_gprs[i] = rctx->default_gprs[i];
   2009 		max_gprs += def_gprs[i];
   2010 	}
   2011 
   2012 	cur_gprs[R600_HW_STAGE_PS] = G_008C04_NUM_PS_GPRS(rctx->config_state.sq_gpr_resource_mgmt_1);
   2013 	cur_gprs[R600_HW_STAGE_VS] = G_008C04_NUM_VS_GPRS(rctx->config_state.sq_gpr_resource_mgmt_1);
   2014 	cur_gprs[R600_HW_STAGE_GS] = G_008C08_NUM_GS_GPRS(rctx->config_state.sq_gpr_resource_mgmt_2);
   2015 	cur_gprs[R600_HW_STAGE_ES] = G_008C08_NUM_ES_GPRS(rctx->config_state.sq_gpr_resource_mgmt_2);
   2016 
   2017 	num_gprs[R600_HW_STAGE_PS] = rctx->ps_shader->current->shader.bc.ngpr;
   2018 	if (rctx->gs_shader) {
   2019 		num_gprs[R600_HW_STAGE_ES] = rctx->vs_shader->current->shader.bc.ngpr;
   2020 		num_gprs[R600_HW_STAGE_GS] = rctx->gs_shader->current->shader.bc.ngpr;
   2021 		num_gprs[R600_HW_STAGE_VS] = rctx->gs_shader->current->gs_copy_shader->shader.bc.ngpr;
   2022 	} else {
   2023 		num_gprs[R600_HW_STAGE_ES] = 0;
   2024 		num_gprs[R600_HW_STAGE_GS] = 0;
   2025 		num_gprs[R600_HW_STAGE_VS] = rctx->vs_shader->current->shader.bc.ngpr;
   2026 	}
   2027 
   2028 	for (i = 0; i < R600_NUM_HW_STAGES; i++) {
   2029 		new_gprs[i] = num_gprs[i];
   2030 		if (new_gprs[i] > cur_gprs[i])
   2031 			need_recalc = true;
   2032 		if (new_gprs[i] > def_gprs[i])
   2033 			use_default = false;
   2034 	}
   2035 
   2036 	/* the sum of all SQ_GPR_RESOURCE_MGMT*.NUM_*_GPRS must <= to max_gprs */
   2037 	if (!need_recalc)
   2038 		return true;
   2039 
   2040 	/* try to use switch back to default */
   2041 	if (!use_default) {
   2042 		/* always privilege vs stage so that at worst we have the
   2043 		 * pixel stage producing wrong output (not the vertex
   2044 		 * stage) */
   2045 		new_gprs[R600_HW_STAGE_PS] = max_gprs - def_num_clause_temp_gprs * 2;
   2046 		for (i = R600_HW_STAGE_VS; i < R600_NUM_HW_STAGES; i++)
   2047 			new_gprs[R600_HW_STAGE_PS] -= new_gprs[i];
   2048 	} else {
   2049 		for (i = 0; i < R600_NUM_HW_STAGES; i++)
   2050 			new_gprs[i] = def_gprs[i];
   2051 	}
   2052 
   2053 	/* SQ_PGM_RESOURCES_*.NUM_GPRS must always be program to a value <=
   2054 	 * SQ_GPR_RESOURCE_MGMT*.NUM_*_GPRS otherwise the GPU will lockup
   2055 	 * Also if a shader use more gpr than SQ_GPR_RESOURCE_MGMT*.NUM_*_GPRS
   2056 	 * it will lockup. So in this case just discard the draw command
   2057 	 * and don't change the current gprs repartitions.
   2058 	 */
   2059 	for (i = 0; i < R600_NUM_HW_STAGES; i++) {
   2060 		if (num_gprs[i] > new_gprs[i]) {
   2061 			R600_ERR("shaders require too many register (%d + %d + %d + %d) "
   2062 				 "for a combined maximum of %d\n",
   2063 				 num_gprs[R600_HW_STAGE_PS], num_gprs[R600_HW_STAGE_VS], num_gprs[R600_HW_STAGE_ES], num_gprs[R600_HW_STAGE_GS], max_gprs);
   2064 			return false;
   2065 		}
   2066 	}
   2067 
   2068 	/* in some case we endup recomputing the current value */
   2069 	tmp = S_008C04_NUM_PS_GPRS(new_gprs[R600_HW_STAGE_PS]) |
   2070 		S_008C04_NUM_VS_GPRS(new_gprs[R600_HW_STAGE_VS]) |
   2071 		S_008C04_NUM_CLAUSE_TEMP_GPRS(def_num_clause_temp_gprs);
   2072 
   2073 	tmp2 = S_008C08_NUM_ES_GPRS(new_gprs[R600_HW_STAGE_ES]) |
   2074 		S_008C08_NUM_GS_GPRS(new_gprs[R600_HW_STAGE_GS]);
   2075 	if (rctx->config_state.sq_gpr_resource_mgmt_1 != tmp || rctx->config_state.sq_gpr_resource_mgmt_2 != tmp2) {
   2076 		rctx->config_state.sq_gpr_resource_mgmt_1 = tmp;
   2077 		rctx->config_state.sq_gpr_resource_mgmt_2 = tmp2;
   2078 		r600_mark_atom_dirty(rctx, &rctx->config_state.atom);
   2079 		rctx->b.flags |= R600_CONTEXT_WAIT_3D_IDLE;
   2080 	}
   2081 	return true;
   2082 }
   2083 
   2084 void r600_init_atom_start_cs(struct r600_context *rctx)
   2085 {
   2086 	int ps_prio;
   2087 	int vs_prio;
   2088 	int gs_prio;
   2089 	int es_prio;
   2090 	int num_ps_gprs;
   2091 	int num_vs_gprs;
   2092 	int num_gs_gprs;
   2093 	int num_es_gprs;
   2094 	int num_temp_gprs;
   2095 	int num_ps_threads;
   2096 	int num_vs_threads;
   2097 	int num_gs_threads;
   2098 	int num_es_threads;
   2099 	int num_ps_stack_entries;
   2100 	int num_vs_stack_entries;
   2101 	int num_gs_stack_entries;
   2102 	int num_es_stack_entries;
   2103 	enum radeon_family family;
   2104 	struct r600_command_buffer *cb = &rctx->start_cs_cmd;
   2105 	uint32_t tmp, i;
   2106 
   2107 	r600_init_command_buffer(cb, 256);
   2108 
   2109 	/* R6xx requires this packet at the start of each command buffer */
   2110 	if (rctx->b.chip_class == R600) {
   2111 		r600_store_value(cb, PKT3(PKT3_START_3D_CMDBUF, 0, 0));
   2112 		r600_store_value(cb, 0);
   2113 	}
   2114 	/* All asics require this one */
   2115 	r600_store_value(cb, PKT3(PKT3_CONTEXT_CONTROL, 1, 0));
   2116 	r600_store_value(cb, 0x80000000);
   2117 	r600_store_value(cb, 0x80000000);
   2118 
   2119 	/* We're setting config registers here. */
   2120 	r600_store_value(cb, PKT3(PKT3_EVENT_WRITE, 0, 0));
   2121 	r600_store_value(cb, EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4));
   2122 
   2123 	/* This enables pipeline stat & streamout queries.
   2124 	 * They are only disabled by blits.
   2125 	 */
   2126 	r600_store_value(cb, PKT3(PKT3_EVENT_WRITE, 0, 0));
   2127 	r600_store_value(cb, EVENT_TYPE(EVENT_TYPE_PIPELINESTAT_START) | EVENT_INDEX(0));
   2128 
   2129 	family = rctx->b.family;
   2130 	ps_prio = 0;
   2131 	vs_prio = 1;
   2132 	gs_prio = 2;
   2133 	es_prio = 3;
   2134 	switch (family) {
   2135 	case CHIP_R600:
   2136 		num_ps_gprs = 192;
   2137 		num_vs_gprs = 56;
   2138 		num_temp_gprs = 4;
   2139 		num_gs_gprs = 0;
   2140 		num_es_gprs = 0;
   2141 		num_ps_threads = 136;
   2142 		num_vs_threads = 48;
   2143 		num_gs_threads = 4;
   2144 		num_es_threads = 4;
   2145 		num_ps_stack_entries = 128;
   2146 		num_vs_stack_entries = 128;
   2147 		num_gs_stack_entries = 0;
   2148 		num_es_stack_entries = 0;
   2149 		break;
   2150 	case CHIP_RV630:
   2151 	case CHIP_RV635:
   2152 		num_ps_gprs = 84;
   2153 		num_vs_gprs = 36;
   2154 		num_temp_gprs = 4;
   2155 		num_gs_gprs = 0;
   2156 		num_es_gprs = 0;
   2157 		num_ps_threads = 144;
   2158 		num_vs_threads = 40;
   2159 		num_gs_threads = 4;
   2160 		num_es_threads = 4;
   2161 		num_ps_stack_entries = 40;
   2162 		num_vs_stack_entries = 40;
   2163 		num_gs_stack_entries = 32;
   2164 		num_es_stack_entries = 16;
   2165 		break;
   2166 	case CHIP_RV610:
   2167 	case CHIP_RV620:
   2168 	case CHIP_RS780:
   2169 	case CHIP_RS880:
   2170 	default:
   2171 		num_ps_gprs = 84;
   2172 		num_vs_gprs = 36;
   2173 		num_temp_gprs = 4;
   2174 		num_gs_gprs = 0;
   2175 		num_es_gprs = 0;
   2176 		/* use limits 40 VS and at least 16 ES/GS */
   2177 		num_ps_threads = 120;
   2178 		num_vs_threads = 40;
   2179 		num_gs_threads = 16;
   2180 		num_es_threads = 16;
   2181 		num_ps_stack_entries = 40;
   2182 		num_vs_stack_entries = 40;
   2183 		num_gs_stack_entries = 32;
   2184 		num_es_stack_entries = 16;
   2185 		break;
   2186 	case CHIP_RV670:
   2187 		num_ps_gprs = 144;
   2188 		num_vs_gprs = 40;
   2189 		num_temp_gprs = 4;
   2190 		num_gs_gprs = 0;
   2191 		num_es_gprs = 0;
   2192 		num_ps_threads = 136;
   2193 		num_vs_threads = 48;
   2194 		num_gs_threads = 4;
   2195 		num_es_threads = 4;
   2196 		num_ps_stack_entries = 40;
   2197 		num_vs_stack_entries = 40;
   2198 		num_gs_stack_entries = 32;
   2199 		num_es_stack_entries = 16;
   2200 		break;
   2201 	case CHIP_RV770:
   2202 		num_ps_gprs = 130;
   2203 		num_vs_gprs = 56;
   2204 		num_temp_gprs = 4;
   2205 		num_gs_gprs = 31;
   2206 		num_es_gprs = 31;
   2207 		num_ps_threads = 180;
   2208 		num_vs_threads = 60;
   2209 		num_gs_threads = 4;
   2210 		num_es_threads = 4;
   2211 		num_ps_stack_entries = 128;
   2212 		num_vs_stack_entries = 128;
   2213 		num_gs_stack_entries = 128;
   2214 		num_es_stack_entries = 128;
   2215 		break;
   2216 	case CHIP_RV730:
   2217 	case CHIP_RV740:
   2218 		num_ps_gprs = 84;
   2219 		num_vs_gprs = 36;
   2220 		num_temp_gprs = 4;
   2221 		num_gs_gprs = 0;
   2222 		num_es_gprs = 0;
   2223 		num_ps_threads = 180;
   2224 		num_vs_threads = 60;
   2225 		num_gs_threads = 4;
   2226 		num_es_threads = 4;
   2227 		num_ps_stack_entries = 128;
   2228 		num_vs_stack_entries = 128;
   2229 		num_gs_stack_entries = 0;
   2230 		num_es_stack_entries = 0;
   2231 		break;
   2232 	case CHIP_RV710:
   2233 		num_ps_gprs = 192;
   2234 		num_vs_gprs = 56;
   2235 		num_temp_gprs = 4;
   2236 		num_gs_gprs = 0;
   2237 		num_es_gprs = 0;
   2238 		num_ps_threads = 136;
   2239 		num_vs_threads = 48;
   2240 		num_gs_threads = 4;
   2241 		num_es_threads = 4;
   2242 		num_ps_stack_entries = 128;
   2243 		num_vs_stack_entries = 128;
   2244 		num_gs_stack_entries = 0;
   2245 		num_es_stack_entries = 0;
   2246 		break;
   2247 	}
   2248 
   2249 	rctx->default_gprs[R600_HW_STAGE_PS] = num_ps_gprs;
   2250 	rctx->default_gprs[R600_HW_STAGE_VS] = num_vs_gprs;
   2251 	rctx->default_gprs[R600_HW_STAGE_GS] = 0;
   2252 	rctx->default_gprs[R600_HW_STAGE_ES] = 0;
   2253 
   2254 	rctx->r6xx_num_clause_temp_gprs = num_temp_gprs;
   2255 
   2256 	/* SQ_CONFIG */
   2257 	tmp = 0;
   2258 	switch (family) {
   2259 	case CHIP_RV610:
   2260 	case CHIP_RV620:
   2261 	case CHIP_RS780:
   2262 	case CHIP_RS880:
   2263 	case CHIP_RV710:
   2264 		break;
   2265 	default:
   2266 		tmp |= S_008C00_VC_ENABLE(1);
   2267 		break;
   2268 	}
   2269 	tmp |= S_008C00_DX9_CONSTS(0);
   2270 	tmp |= S_008C00_ALU_INST_PREFER_VECTOR(1);
   2271 	tmp |= S_008C00_PS_PRIO(ps_prio);
   2272 	tmp |= S_008C00_VS_PRIO(vs_prio);
   2273 	tmp |= S_008C00_GS_PRIO(gs_prio);
   2274 	tmp |= S_008C00_ES_PRIO(es_prio);
   2275 	r600_store_config_reg(cb, R_008C00_SQ_CONFIG, tmp);
   2276 
   2277 	/* SQ_GPR_RESOURCE_MGMT_2 */
   2278 	tmp = S_008C08_NUM_GS_GPRS(num_gs_gprs);
   2279 	tmp |= S_008C08_NUM_ES_GPRS(num_es_gprs);
   2280 	r600_store_config_reg_seq(cb, R_008C08_SQ_GPR_RESOURCE_MGMT_2, 4);
   2281 	r600_store_value(cb, tmp);
   2282 
   2283 	/* SQ_THREAD_RESOURCE_MGMT */
   2284 	tmp = S_008C0C_NUM_PS_THREADS(num_ps_threads);
   2285 	tmp |= S_008C0C_NUM_VS_THREADS(num_vs_threads);
   2286 	tmp |= S_008C0C_NUM_GS_THREADS(num_gs_threads);
   2287 	tmp |= S_008C0C_NUM_ES_THREADS(num_es_threads);
   2288 	r600_store_value(cb, tmp); /* R_008C0C_SQ_THREAD_RESOURCE_MGMT */
   2289 
   2290 	/* SQ_STACK_RESOURCE_MGMT_1 */
   2291 	tmp = S_008C10_NUM_PS_STACK_ENTRIES(num_ps_stack_entries);
   2292 	tmp |= S_008C10_NUM_VS_STACK_ENTRIES(num_vs_stack_entries);
   2293 	r600_store_value(cb, tmp); /* R_008C10_SQ_STACK_RESOURCE_MGMT_1 */
   2294 
   2295 	/* SQ_STACK_RESOURCE_MGMT_2 */
   2296 	tmp = S_008C14_NUM_GS_STACK_ENTRIES(num_gs_stack_entries);
   2297 	tmp |= S_008C14_NUM_ES_STACK_ENTRIES(num_es_stack_entries);
   2298 	r600_store_value(cb, tmp); /* R_008C14_SQ_STACK_RESOURCE_MGMT_2 */
   2299 
   2300 	r600_store_config_reg(cb, R_009714_VC_ENHANCE, 0);
   2301 
   2302 	if (rctx->b.chip_class >= R700) {
   2303 		r600_store_context_reg(cb, R_028A50_VGT_ENHANCE, 4);
   2304 		r600_store_config_reg(cb, R_008D8C_SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0x00004000);
   2305 		r600_store_config_reg(cb, R_009830_DB_DEBUG, 0);
   2306 		r600_store_config_reg(cb, R_009838_DB_WATERMARKS, 0x00420204);
   2307 		r600_store_context_reg(cb, R_0286C8_SPI_THREAD_GROUPING, 0);
   2308 	} else {
   2309 		r600_store_config_reg(cb, R_008D8C_SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0);
   2310 		r600_store_config_reg(cb, R_009830_DB_DEBUG, 0x82000000);
   2311 		r600_store_config_reg(cb, R_009838_DB_WATERMARKS, 0x01020204);
   2312 		r600_store_context_reg(cb, R_0286C8_SPI_THREAD_GROUPING, 1);
   2313 	}
   2314 	r600_store_context_reg_seq(cb, R_0288A8_SQ_ESGS_RING_ITEMSIZE, 9);
   2315 	r600_store_value(cb, 0); /* R_0288A8_SQ_ESGS_RING_ITEMSIZE */
   2316 	r600_store_value(cb, 0); /* R_0288AC_SQ_GSVS_RING_ITEMSIZE */
   2317 	r600_store_value(cb, 0); /* R_0288B0_SQ_ESTMP_RING_ITEMSIZE */
   2318 	r600_store_value(cb, 0); /* R_0288B4_SQ_GSTMP_RING_ITEMSIZE */
   2319 	r600_store_value(cb, 0); /* R_0288B8_SQ_VSTMP_RING_ITEMSIZE */
   2320 	r600_store_value(cb, 0); /* R_0288BC_SQ_PSTMP_RING_ITEMSIZE */
   2321 	r600_store_value(cb, 0); /* R_0288C0_SQ_FBUF_RING_ITEMSIZE */
   2322 	r600_store_value(cb, 0); /* R_0288C4_SQ_REDUC_RING_ITEMSIZE */
   2323 	r600_store_value(cb, 0); /* R_0288C8_SQ_GS_VERT_ITEMSIZE */
   2324 
   2325 	/* to avoid GPU doing any preloading of constant from random address */
   2326 	r600_store_context_reg_seq(cb, R_028140_ALU_CONST_BUFFER_SIZE_PS_0, 16);
   2327 	for (i = 0; i < 16; i++)
   2328 		r600_store_value(cb, 0);
   2329 
   2330 	r600_store_context_reg_seq(cb, R_028180_ALU_CONST_BUFFER_SIZE_VS_0, 16);
   2331 	for (i = 0; i < 16; i++)
   2332 		r600_store_value(cb, 0);
   2333 
   2334 	r600_store_context_reg_seq(cb, R_0281C0_ALU_CONST_BUFFER_SIZE_GS_0, 16);
   2335 	for (i = 0; i < 16; i++)
   2336 		r600_store_value(cb, 0);
   2337 
   2338 	r600_store_context_reg_seq(cb, R_028A10_VGT_OUTPUT_PATH_CNTL, 13);
   2339 	r600_store_value(cb, 0); /* R_028A10_VGT_OUTPUT_PATH_CNTL */
   2340 	r600_store_value(cb, 0); /* R_028A14_VGT_HOS_CNTL */
   2341 	r600_store_value(cb, 0); /* R_028A18_VGT_HOS_MAX_TESS_LEVEL */
   2342 	r600_store_value(cb, 0); /* R_028A1C_VGT_HOS_MIN_TESS_LEVEL */
   2343 	r600_store_value(cb, 0); /* R_028A20_VGT_HOS_REUSE_DEPTH */
   2344 	r600_store_value(cb, 0); /* R_028A24_VGT_GROUP_PRIM_TYPE */
   2345 	r600_store_value(cb, 0); /* R_028A28_VGT_GROUP_FIRST_DECR */
   2346 	r600_store_value(cb, 0); /* R_028A2C_VGT_GROUP_DECR */
   2347 	r600_store_value(cb, 0); /* R_028A30_VGT_GROUP_VECT_0_CNTL */
   2348 	r600_store_value(cb, 0); /* R_028A34_VGT_GROUP_VECT_1_CNTL */
   2349 	r600_store_value(cb, 0); /* R_028A38_VGT_GROUP_VECT_0_FMT_CNTL */
   2350 	r600_store_value(cb, 0); /* R_028A3C_VGT_GROUP_VECT_1_FMT_CNTL */
   2351 	r600_store_value(cb, 0); /* R_028A40_VGT_GS_MODE, 0); */
   2352 
   2353 	r600_store_context_reg(cb, R_028A84_VGT_PRIMITIVEID_EN, 0);
   2354 	r600_store_context_reg(cb, R_028AA0_VGT_INSTANCE_STEP_RATE_0, 0);
   2355 	r600_store_context_reg(cb, R_028AA4_VGT_INSTANCE_STEP_RATE_1, 0);
   2356 
   2357 	r600_store_context_reg_seq(cb, R_028AB4_VGT_REUSE_OFF, 2);
   2358 	r600_store_value(cb, 1); /* R_028AB4_VGT_REUSE_OFF */
   2359 	r600_store_value(cb, 0); /* R_028AB8_VGT_VTX_CNT_EN */
   2360 
   2361 	r600_store_context_reg(cb, R_028B20_VGT_STRMOUT_BUFFER_EN, 0);
   2362 
   2363 	r600_store_ctl_const(cb, R_03CFF0_SQ_VTX_BASE_VTX_LOC, 0);
   2364 
   2365 	r600_store_context_reg(cb, R_028028_DB_STENCIL_CLEAR, 0);
   2366 
   2367 	r600_store_context_reg_seq(cb, R_0286DC_SPI_FOG_CNTL, 3);
   2368 	r600_store_value(cb, 0); /* R_0286DC_SPI_FOG_CNTL */
   2369 	r600_store_value(cb, 0); /* R_0286E0_SPI_FOG_FUNC_SCALE */
   2370 	r600_store_value(cb, 0); /* R_0286E4_SPI_FOG_FUNC_BIAS */
   2371 
   2372 	r600_store_context_reg_seq(cb, R_028D28_DB_SRESULTS_COMPARE_STATE0, 3);
   2373 	r600_store_value(cb, 0); /* R_028D28_DB_SRESULTS_COMPARE_STATE0 */
   2374 	r600_store_value(cb, 0); /* R_028D2C_DB_SRESULTS_COMPARE_STATE1 */
   2375 	r600_store_value(cb, 0); /* R_028D30_DB_PRELOAD_CONTROL */
   2376 
   2377 	r600_store_context_reg(cb, R_028820_PA_CL_NANINF_CNTL, 0);
   2378 	r600_store_context_reg(cb, R_028A48_PA_SC_MPASS_PS_CNTL, 0);
   2379 
   2380 	r600_store_context_reg(cb, R_028200_PA_SC_WINDOW_OFFSET, 0);
   2381 	r600_store_context_reg(cb, R_02820C_PA_SC_CLIPRECT_RULE, 0xFFFF);
   2382 
   2383 	if (rctx->b.chip_class >= R700) {
   2384 		r600_store_context_reg(cb, R_028230_PA_SC_EDGERULE, 0xAAAAAAAA);
   2385 	}
   2386 
   2387 	r600_store_context_reg_seq(cb, R_028C30_CB_CLRCMP_CONTROL, 4);
   2388 	r600_store_value(cb, 0x1000000);  /* R_028C30_CB_CLRCMP_CONTROL */
   2389 	r600_store_value(cb, 0);          /* R_028C34_CB_CLRCMP_SRC */
   2390 	r600_store_value(cb, 0xFF);       /* R_028C38_CB_CLRCMP_DST */
   2391 	r600_store_value(cb, 0xFFFFFFFF); /* R_028C3C_CB_CLRCMP_MSK */
   2392 
   2393 	r600_store_context_reg_seq(cb, R_028030_PA_SC_SCREEN_SCISSOR_TL, 2);
   2394 	r600_store_value(cb, 0); /* R_028030_PA_SC_SCREEN_SCISSOR_TL */
   2395 	r600_store_value(cb, S_028034_BR_X(8192) | S_028034_BR_Y(8192)); /* R_028034_PA_SC_SCREEN_SCISSOR_BR */
   2396 
   2397 	r600_store_context_reg_seq(cb, R_028240_PA_SC_GENERIC_SCISSOR_TL, 2);
   2398 	r600_store_value(cb, 0); /* R_028240_PA_SC_GENERIC_SCISSOR_TL */
   2399 	r600_store_value(cb, S_028244_BR_X(8192) | S_028244_BR_Y(8192)); /* R_028244_PA_SC_GENERIC_SCISSOR_BR */
   2400 
   2401 	r600_store_context_reg_seq(cb, R_0288CC_SQ_PGM_CF_OFFSET_PS, 5);
   2402 	r600_store_value(cb, 0); /* R_0288CC_SQ_PGM_CF_OFFSET_PS */
   2403 	r600_store_value(cb, 0); /* R_0288D0_SQ_PGM_CF_OFFSET_VS */
   2404 	r600_store_value(cb, 0); /* R_0288D4_SQ_PGM_CF_OFFSET_GS */
   2405 	r600_store_value(cb, 0); /* R_0288D8_SQ_PGM_CF_OFFSET_ES */
   2406 	r600_store_value(cb, 0); /* R_0288DC_SQ_PGM_CF_OFFSET_FS */
   2407 
   2408         r600_store_context_reg(cb, R_0288E0_SQ_VTX_SEMANTIC_CLEAR, ~0);
   2409 
   2410         r600_store_context_reg_seq(cb, R_028400_VGT_MAX_VTX_INDX, 2);
   2411 	r600_store_value(cb, ~0); /* R_028400_VGT_MAX_VTX_INDX */
   2412 	r600_store_value(cb, 0); /* R_028404_VGT_MIN_VTX_INDX */
   2413 
   2414 	r600_store_context_reg(cb, R_0288A4_SQ_PGM_RESOURCES_FS, 0);
   2415 
   2416 	if (rctx->b.chip_class == R700)
   2417 		r600_store_context_reg(cb, R_028350_SX_MISC, 0);
   2418 	if (rctx->b.chip_class == R700 && rctx->screen->b.has_streamout)
   2419 		r600_store_context_reg(cb, R_028354_SX_SURFACE_SYNC, S_028354_SURFACE_SYNC_MASK(0xf));
   2420 
   2421 	r600_store_context_reg(cb, R_028800_DB_DEPTH_CONTROL, 0);
   2422 	if (rctx->screen->b.has_streamout) {
   2423 		r600_store_context_reg(cb, R_028B28_VGT_STRMOUT_DRAW_OPAQUE_OFFSET, 0);
   2424 	}
   2425 
   2426 	r600_store_loop_const(cb, R_03E200_SQ_LOOP_CONST_0, 0x1000FFF);
   2427 	r600_store_loop_const(cb, R_03E200_SQ_LOOP_CONST_0 + (32 * 4), 0x1000FFF);
   2428 	r600_store_loop_const(cb, R_03E200_SQ_LOOP_CONST_0 + (64 * 4), 0x1000FFF);
   2429 }
   2430 
   2431 void r600_update_ps_state(struct pipe_context *ctx, struct r600_pipe_shader *shader)
   2432 {
   2433 	struct r600_context *rctx = (struct r600_context *)ctx;
   2434 	struct r600_command_buffer *cb = &shader->command_buffer;
   2435 	struct r600_shader *rshader = &shader->shader;
   2436 	unsigned i, exports_ps, num_cout, spi_ps_in_control_0, spi_input_z, spi_ps_in_control_1, db_shader_control;
   2437 	int pos_index = -1, face_index = -1, fixed_pt_position_index = -1;
   2438 	unsigned tmp, sid, ufi = 0;
   2439 	int need_linear = 0;
   2440 	unsigned z_export = 0, stencil_export = 0, mask_export = 0;
   2441 	unsigned sprite_coord_enable = rctx->rasterizer ? rctx->rasterizer->sprite_coord_enable : 0;
   2442 
   2443 	if (!cb->buf) {
   2444 		r600_init_command_buffer(cb, 64);
   2445 	} else {
   2446 		cb->num_dw = 0;
   2447 	}
   2448 
   2449 	r600_store_context_reg_seq(cb, R_028644_SPI_PS_INPUT_CNTL_0, rshader->ninput);
   2450 	for (i = 0; i < rshader->ninput; i++) {
   2451 		if (rshader->input[i].name == TGSI_SEMANTIC_POSITION)
   2452 			pos_index = i;
   2453 		if (rshader->input[i].name == TGSI_SEMANTIC_FACE && face_index == -1)
   2454 			face_index = i;
   2455 		if (rshader->input[i].name == TGSI_SEMANTIC_SAMPLEID)
   2456 			fixed_pt_position_index = i;
   2457 
   2458 		sid = rshader->input[i].spi_sid;
   2459 
   2460 		tmp = S_028644_SEMANTIC(sid);
   2461 
   2462 		/* D3D 9 behaviour. GL is undefined */
   2463 		if (rshader->input[i].name == TGSI_SEMANTIC_COLOR && rshader->input[i].sid == 0)
   2464 			tmp |= S_028644_DEFAULT_VAL(3);
   2465 
   2466 		if (rshader->input[i].name == TGSI_SEMANTIC_POSITION ||
   2467 			rshader->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT ||
   2468 			(rshader->input[i].interpolate == TGSI_INTERPOLATE_COLOR &&
   2469 				rctx->rasterizer && rctx->rasterizer->flatshade))
   2470 			tmp |= S_028644_FLAT_SHADE(1);
   2471 
   2472 		if (rshader->input[i].name == TGSI_SEMANTIC_GENERIC &&
   2473 		    sprite_coord_enable & (1 << rshader->input[i].sid)) {
   2474 			tmp |= S_028644_PT_SPRITE_TEX(1);
   2475 		}
   2476 
   2477 		if (rshader->input[i].interpolate_location == TGSI_INTERPOLATE_LOC_CENTROID)
   2478 			tmp |= S_028644_SEL_CENTROID(1);
   2479 
   2480 		if (rshader->input[i].interpolate_location == TGSI_INTERPOLATE_LOC_SAMPLE)
   2481 			tmp |= S_028644_SEL_SAMPLE(1);
   2482 
   2483 		if (rshader->input[i].interpolate == TGSI_INTERPOLATE_LINEAR) {
   2484 			need_linear = 1;
   2485 			tmp |= S_028644_SEL_LINEAR(1);
   2486 		}
   2487 
   2488 		r600_store_value(cb, tmp);
   2489 	}
   2490 
   2491 	db_shader_control = 0;
   2492 	for (i = 0; i < rshader->noutput; i++) {
   2493 		if (rshader->output[i].name == TGSI_SEMANTIC_POSITION)
   2494 			z_export = 1;
   2495 		if (rshader->output[i].name == TGSI_SEMANTIC_STENCIL)
   2496 			stencil_export = 1;
   2497 		if (rshader->output[i].name == TGSI_SEMANTIC_SAMPLEMASK &&
   2498 			rctx->framebuffer.nr_samples > 1 && rctx->ps_iter_samples > 0)
   2499 			mask_export = 1;
   2500 	}
   2501 	db_shader_control |= S_02880C_Z_EXPORT_ENABLE(z_export);
   2502 	db_shader_control |= S_02880C_STENCIL_REF_EXPORT_ENABLE(stencil_export);
   2503 	db_shader_control |= S_02880C_MASK_EXPORT_ENABLE(mask_export);
   2504 	if (rshader->uses_kill)
   2505 		db_shader_control |= S_02880C_KILL_ENABLE(1);
   2506 
   2507 	exports_ps = 0;
   2508 	for (i = 0; i < rshader->noutput; i++) {
   2509 		if (rshader->output[i].name == TGSI_SEMANTIC_POSITION ||
   2510 		    rshader->output[i].name == TGSI_SEMANTIC_STENCIL ||
   2511 		    rshader->output[i].name == TGSI_SEMANTIC_SAMPLEMASK) {
   2512 			exports_ps |= 1;
   2513 		}
   2514 	}
   2515 	num_cout = rshader->nr_ps_color_exports;
   2516 	exports_ps |= S_028854_EXPORT_COLORS(num_cout);
   2517 	if (!exports_ps) {
   2518 		/* always at least export 1 component per pixel */
   2519 		exports_ps = 2;
   2520 	}
   2521 
   2522 	shader->nr_ps_color_outputs = num_cout;
   2523 
   2524 	spi_ps_in_control_0 = S_0286CC_NUM_INTERP(rshader->ninput) |
   2525 				S_0286CC_PERSP_GRADIENT_ENA(1)|
   2526 				S_0286CC_LINEAR_GRADIENT_ENA(need_linear);
   2527 	spi_input_z = 0;
   2528 	if (pos_index != -1) {
   2529 		spi_ps_in_control_0 |= (S_0286CC_POSITION_ENA(1) |
   2530 					S_0286CC_POSITION_CENTROID(rshader->input[pos_index].interpolate_location == TGSI_INTERPOLATE_LOC_CENTROID) |
   2531 					S_0286CC_POSITION_ADDR(rshader->input[pos_index].gpr) |
   2532 					S_0286CC_BARYC_SAMPLE_CNTL(1)) |
   2533 					S_0286CC_POSITION_SAMPLE(rshader->input[pos_index].interpolate_location == TGSI_INTERPOLATE_LOC_SAMPLE);
   2534 		spi_input_z |= S_0286D8_PROVIDE_Z_TO_SPI(1);
   2535 	}
   2536 
   2537 	spi_ps_in_control_1 = 0;
   2538 	if (face_index != -1) {
   2539 		spi_ps_in_control_1 |= S_0286D0_FRONT_FACE_ENA(1) |
   2540 			S_0286D0_FRONT_FACE_ADDR(rshader->input[face_index].gpr);
   2541 	}
   2542 	if (fixed_pt_position_index != -1) {
   2543 		spi_ps_in_control_1 |= S_0286D0_FIXED_PT_POSITION_ENA(1) |
   2544 			S_0286D0_FIXED_PT_POSITION_ADDR(rshader->input[fixed_pt_position_index].gpr);
   2545 	}
   2546 
   2547 	/* HW bug in original R600 */
   2548 	if (rctx->b.family == CHIP_R600)
   2549 		ufi = 1;
   2550 
   2551 	r600_store_context_reg_seq(cb, R_0286CC_SPI_PS_IN_CONTROL_0, 2);
   2552 	r600_store_value(cb, spi_ps_in_control_0); /* R_0286CC_SPI_PS_IN_CONTROL_0 */
   2553 	r600_store_value(cb, spi_ps_in_control_1); /* R_0286D0_SPI_PS_IN_CONTROL_1 */
   2554 
   2555 	r600_store_context_reg(cb, R_0286D8_SPI_INPUT_Z, spi_input_z);
   2556 
   2557 	r600_store_context_reg_seq(cb, R_028850_SQ_PGM_RESOURCES_PS, 2);
   2558 	r600_store_value(cb, /* R_028850_SQ_PGM_RESOURCES_PS*/
   2559 			 S_028850_NUM_GPRS(rshader->bc.ngpr) |
   2560 	/*
   2561 	 * docs are misleading about the dx10_clamp bit. This only affects
   2562 	 * instructions using CLAMP dst modifier, in which case they will
   2563 	 * return 0 with this set for a NaN (otherwise NaN).
   2564 	 */
   2565 			 S_028850_DX10_CLAMP(1) |
   2566 			 S_028850_STACK_SIZE(rshader->bc.nstack) |
   2567 			 S_028850_UNCACHED_FIRST_INST(ufi));
   2568 	r600_store_value(cb, exports_ps); /* R_028854_SQ_PGM_EXPORTS_PS */
   2569 
   2570 	r600_store_context_reg(cb, R_028840_SQ_PGM_START_PS, 0);
   2571 	/* After that, the NOP relocation packet must be emitted (shader->bo, RADEON_USAGE_READ). */
   2572 
   2573 	/* only set some bits here, the other bits are set in the dsa state */
   2574 	shader->db_shader_control = db_shader_control;
   2575 	shader->ps_depth_export = z_export | stencil_export | mask_export;
   2576 
   2577 	shader->sprite_coord_enable = sprite_coord_enable;
   2578 	if (rctx->rasterizer)
   2579 		shader->flatshade = rctx->rasterizer->flatshade;
   2580 }
   2581 
   2582 void r600_update_vs_state(struct pipe_context *ctx, struct r600_pipe_shader *shader)
   2583 {
   2584 	struct r600_command_buffer *cb = &shader->command_buffer;
   2585 	struct r600_shader *rshader = &shader->shader;
   2586 	unsigned spi_vs_out_id[10] = {};
   2587 	unsigned i, tmp, nparams = 0;
   2588 
   2589 	for (i = 0; i < rshader->noutput; i++) {
   2590 		if (rshader->output[i].spi_sid) {
   2591 			tmp = rshader->output[i].spi_sid << ((nparams & 3) * 8);
   2592 			spi_vs_out_id[nparams / 4] |= tmp;
   2593 			nparams++;
   2594 		}
   2595 	}
   2596 
   2597 	r600_init_command_buffer(cb, 32);
   2598 
   2599 	r600_store_context_reg_seq(cb, R_028614_SPI_VS_OUT_ID_0, 10);
   2600 	for (i = 0; i < 10; i++) {
   2601 		r600_store_value(cb, spi_vs_out_id[i]);
   2602 	}
   2603 
   2604 	/* Certain attributes (position, psize, etc.) don't count as params.
   2605 	 * VS is required to export at least one param and r600_shader_from_tgsi()
   2606 	 * takes care of adding a dummy export.
   2607 	 */
   2608 	if (nparams < 1)
   2609 		nparams = 1;
   2610 
   2611 	r600_store_context_reg(cb, R_0286C4_SPI_VS_OUT_CONFIG,
   2612 			       S_0286C4_VS_EXPORT_COUNT(nparams - 1));
   2613 	r600_store_context_reg(cb, R_028868_SQ_PGM_RESOURCES_VS,
   2614 			       S_028868_NUM_GPRS(rshader->bc.ngpr) |
   2615 			       S_028868_DX10_CLAMP(1) |
   2616 			       S_028868_STACK_SIZE(rshader->bc.nstack));
   2617 	if (rshader->vs_position_window_space) {
   2618 		r600_store_context_reg(cb, R_028818_PA_CL_VTE_CNTL,
   2619 			S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1));
   2620 	} else {
   2621 		r600_store_context_reg(cb, R_028818_PA_CL_VTE_CNTL,
   2622 			S_028818_VTX_W0_FMT(1) |
   2623 			S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
   2624 			S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
   2625 			S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1));
   2626 
   2627 	}
   2628 	r600_store_context_reg(cb, R_028858_SQ_PGM_START_VS, 0);
   2629 	/* After that, the NOP relocation packet must be emitted (shader->bo, RADEON_USAGE_READ). */
   2630 
   2631 	shader->pa_cl_vs_out_cntl =
   2632 		S_02881C_VS_OUT_CCDIST0_VEC_ENA((rshader->clip_dist_write & 0x0F) != 0) |
   2633 		S_02881C_VS_OUT_CCDIST1_VEC_ENA((rshader->clip_dist_write & 0xF0) != 0) |
   2634 		S_02881C_VS_OUT_MISC_VEC_ENA(rshader->vs_out_misc_write) |
   2635 		S_02881C_USE_VTX_POINT_SIZE(rshader->vs_out_point_size) |
   2636 		S_02881C_USE_VTX_EDGE_FLAG(rshader->vs_out_edgeflag) |
   2637 		S_02881C_USE_VTX_RENDER_TARGET_INDX(rshader->vs_out_layer) |
   2638 		S_02881C_USE_VTX_VIEWPORT_INDX(rshader->vs_out_viewport);
   2639 }
   2640 
   2641 #define RV610_GSVS_ALIGN 32
   2642 #define R600_GSVS_ALIGN 16
   2643 
   2644 void r600_update_gs_state(struct pipe_context *ctx, struct r600_pipe_shader *shader)
   2645 {
   2646 	struct r600_context *rctx = (struct r600_context *)ctx;
   2647 	struct r600_command_buffer *cb = &shader->command_buffer;
   2648 	struct r600_shader *rshader = &shader->shader;
   2649 	struct r600_shader *cp_shader = &shader->gs_copy_shader->shader;
   2650 	unsigned gsvs_itemsize =
   2651 			(cp_shader->ring_item_sizes[0] * shader->selector->gs_max_out_vertices) >> 2;
   2652 
   2653 	/* some r600s needs gsvs itemsize aligned to cacheline size
   2654 	   this was fixed in rs780 and above. */
   2655 	switch (rctx->b.family) {
   2656 	case CHIP_RV610:
   2657 		gsvs_itemsize = align(gsvs_itemsize, RV610_GSVS_ALIGN);
   2658 		break;
   2659 	case CHIP_R600:
   2660 	case CHIP_RV630:
   2661 	case CHIP_RV670:
   2662 	case CHIP_RV620:
   2663 	case CHIP_RV635:
   2664 		gsvs_itemsize = align(gsvs_itemsize, R600_GSVS_ALIGN);
   2665 		break;
   2666 	default:
   2667 		break;
   2668 	}
   2669 
   2670 	r600_init_command_buffer(cb, 64);
   2671 
   2672 	/* VGT_GS_MODE is written by r600_emit_shader_stages */
   2673 	r600_store_context_reg(cb, R_028AB8_VGT_VTX_CNT_EN, 1);
   2674 
   2675 	if (rctx->b.chip_class >= R700) {
   2676 		r600_store_context_reg(cb, R_028B38_VGT_GS_MAX_VERT_OUT,
   2677 				       S_028B38_MAX_VERT_OUT(shader->selector->gs_max_out_vertices));
   2678 	}
   2679 	r600_store_context_reg(cb, R_028A6C_VGT_GS_OUT_PRIM_TYPE,
   2680 			       r600_conv_prim_to_gs_out(shader->selector->gs_output_prim));
   2681 
   2682 	r600_store_context_reg(cb, R_0288C8_SQ_GS_VERT_ITEMSIZE,
   2683 	                       cp_shader->ring_item_sizes[0] >> 2);
   2684 
   2685 	r600_store_context_reg(cb, R_0288A8_SQ_ESGS_RING_ITEMSIZE,
   2686 			       (rshader->ring_item_sizes[0]) >> 2);
   2687 
   2688 	r600_store_context_reg(cb, R_0288AC_SQ_GSVS_RING_ITEMSIZE,
   2689 			       gsvs_itemsize);
   2690 
   2691 	/* FIXME calculate these values somehow ??? */
   2692 	r600_store_config_reg_seq(cb, R_0088C8_VGT_GS_PER_ES, 2);
   2693 	r600_store_value(cb, 0x80); /* GS_PER_ES */
   2694 	r600_store_value(cb, 0x100); /* ES_PER_GS */
   2695 	r600_store_config_reg_seq(cb, R_0088E8_VGT_GS_PER_VS, 1);
   2696 	r600_store_value(cb, 0x2); /* GS_PER_VS */
   2697 
   2698 	r600_store_context_reg(cb, R_02887C_SQ_PGM_RESOURCES_GS,
   2699 			       S_02887C_NUM_GPRS(rshader->bc.ngpr) |
   2700 			       S_02887C_DX10_CLAMP(1) |
   2701 			       S_02887C_STACK_SIZE(rshader->bc.nstack));
   2702 	r600_store_context_reg(cb, R_02886C_SQ_PGM_START_GS, 0);
   2703 	/* After that, the NOP relocation packet must be emitted (shader->bo, RADEON_USAGE_READ). */
   2704 }
   2705 
   2706 void r600_update_es_state(struct pipe_context *ctx, struct r600_pipe_shader *shader)
   2707 {
   2708 	struct r600_command_buffer *cb = &shader->command_buffer;
   2709 	struct r600_shader *rshader = &shader->shader;
   2710 
   2711 	r600_init_command_buffer(cb, 32);
   2712 
   2713 	r600_store_context_reg(cb, R_028890_SQ_PGM_RESOURCES_ES,
   2714 			       S_028890_NUM_GPRS(rshader->bc.ngpr) |
   2715 			       S_028890_DX10_CLAMP(1) |
   2716 			       S_028890_STACK_SIZE(rshader->bc.nstack));
   2717 	r600_store_context_reg(cb, R_028880_SQ_PGM_START_ES, 0);
   2718 	/* After that, the NOP relocation packet must be emitted (shader->bo, RADEON_USAGE_READ). */
   2719 }
   2720 
   2721 
   2722 void *r600_create_resolve_blend(struct r600_context *rctx)
   2723 {
   2724 	struct pipe_blend_state blend;
   2725 	unsigned i;
   2726 
   2727 	memset(&blend, 0, sizeof(blend));
   2728 	blend.independent_blend_enable = true;
   2729 	for (i = 0; i < 2; i++) {
   2730 		blend.rt[i].colormask = 0xf;
   2731 		blend.rt[i].blend_enable = 1;
   2732 		blend.rt[i].rgb_func = PIPE_BLEND_ADD;
   2733 		blend.rt[i].alpha_func = PIPE_BLEND_ADD;
   2734 		blend.rt[i].rgb_src_factor = PIPE_BLENDFACTOR_ZERO;
   2735 		blend.rt[i].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
   2736 		blend.rt[i].alpha_src_factor = PIPE_BLENDFACTOR_ZERO;
   2737 		blend.rt[i].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
   2738 	}
   2739 	return r600_create_blend_state_mode(&rctx->b.b, &blend, V_028808_SPECIAL_RESOLVE_BOX);
   2740 }
   2741 
   2742 void *r700_create_resolve_blend(struct r600_context *rctx)
   2743 {
   2744 	struct pipe_blend_state blend;
   2745 
   2746 	memset(&blend, 0, sizeof(blend));
   2747 	blend.independent_blend_enable = true;
   2748 	blend.rt[0].colormask = 0xf;
   2749 	return r600_create_blend_state_mode(&rctx->b.b, &blend, V_028808_SPECIAL_RESOLVE_BOX);
   2750 }
   2751 
   2752 void *r600_create_decompress_blend(struct r600_context *rctx)
   2753 {
   2754 	struct pipe_blend_state blend;
   2755 
   2756 	memset(&blend, 0, sizeof(blend));
   2757 	blend.independent_blend_enable = true;
   2758 	blend.rt[0].colormask = 0xf;
   2759 	return r600_create_blend_state_mode(&rctx->b.b, &blend, V_028808_SPECIAL_EXPAND_SAMPLES);
   2760 }
   2761 
   2762 void *r600_create_db_flush_dsa(struct r600_context *rctx)
   2763 {
   2764 	struct pipe_depth_stencil_alpha_state dsa;
   2765 	boolean quirk = false;
   2766 
   2767 	if (rctx->b.family == CHIP_RV610 || rctx->b.family == CHIP_RV630 ||
   2768 		rctx->b.family == CHIP_RV620 || rctx->b.family == CHIP_RV635)
   2769 		quirk = true;
   2770 
   2771 	memset(&dsa, 0, sizeof(dsa));
   2772 
   2773 	if (quirk) {
   2774 		dsa.depth.enabled = 1;
   2775 		dsa.depth.func = PIPE_FUNC_LEQUAL;
   2776 		dsa.stencil[0].enabled = 1;
   2777 		dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
   2778 		dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_KEEP;
   2779 		dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_INCR;
   2780 		dsa.stencil[0].writemask = 0xff;
   2781 	}
   2782 
   2783 	return rctx->b.b.create_depth_stencil_alpha_state(&rctx->b.b, &dsa);
   2784 }
   2785 
   2786 void r600_update_db_shader_control(struct r600_context * rctx)
   2787 {
   2788 	bool dual_export;
   2789 	unsigned db_shader_control;
   2790 	uint8_t ps_conservative_z;
   2791 
   2792 	if (!rctx->ps_shader) {
   2793 		return;
   2794 	}
   2795 
   2796 	dual_export = rctx->framebuffer.export_16bpc &&
   2797 		      !rctx->ps_shader->current->ps_depth_export;
   2798 
   2799 	db_shader_control = rctx->ps_shader->current->db_shader_control |
   2800 			    S_02880C_DUAL_EXPORT_ENABLE(dual_export);
   2801 
   2802 	ps_conservative_z = rctx->ps_shader->current->shader.ps_conservative_z;
   2803 
   2804 	/* When alpha test is enabled we can't trust the hw to make the proper
   2805 	 * decision on the order in which ztest should be run related to fragment
   2806 	 * shader execution.
   2807 	 *
   2808 	 * If alpha test is enabled perform z test after fragment. RE_Z (early
   2809 	 * z test but no write to the zbuffer) seems to cause lockup on r6xx/r7xx
   2810 	 */
   2811 	if (rctx->alphatest_state.sx_alpha_test_control) {
   2812 		db_shader_control |= S_02880C_Z_ORDER(V_02880C_LATE_Z);
   2813 	} else {
   2814 		db_shader_control |= S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z);
   2815 	}
   2816 
   2817 	if (db_shader_control != rctx->db_misc_state.db_shader_control ||
   2818 		ps_conservative_z != rctx->db_misc_state.ps_conservative_z) {
   2819 		rctx->db_misc_state.db_shader_control = db_shader_control;
   2820 		rctx->db_misc_state.ps_conservative_z = ps_conservative_z;
   2821 		r600_mark_atom_dirty(rctx, &rctx->db_misc_state.atom);
   2822 	}
   2823 }
   2824 
   2825 static inline unsigned r600_array_mode(unsigned mode)
   2826 {
   2827 	switch (mode) {
   2828 	default:
   2829 	case RADEON_SURF_MODE_LINEAR_ALIGNED:	return V_0280A0_ARRAY_LINEAR_ALIGNED;
   2830 		break;
   2831 	case RADEON_SURF_MODE_1D:		return V_0280A0_ARRAY_1D_TILED_THIN1;
   2832 		break;
   2833 	case RADEON_SURF_MODE_2D:		return V_0280A0_ARRAY_2D_TILED_THIN1;
   2834 	}
   2835 }
   2836 
   2837 static boolean r600_dma_copy_tile(struct r600_context *rctx,
   2838 				struct pipe_resource *dst,
   2839 				unsigned dst_level,
   2840 				unsigned dst_x,
   2841 				unsigned dst_y,
   2842 				unsigned dst_z,
   2843 				struct pipe_resource *src,
   2844 				unsigned src_level,
   2845 				unsigned src_x,
   2846 				unsigned src_y,
   2847 				unsigned src_z,
   2848 				unsigned copy_height,
   2849 				unsigned pitch,
   2850 				unsigned bpp)
   2851 {
   2852 	struct radeon_winsys_cs *cs = rctx->b.dma.cs;
   2853 	struct r600_texture *rsrc = (struct r600_texture*)src;
   2854 	struct r600_texture *rdst = (struct r600_texture*)dst;
   2855 	unsigned array_mode, lbpp, pitch_tile_max, slice_tile_max, size;
   2856 	unsigned ncopy, height, cheight, detile, i, x, y, z, src_mode, dst_mode;
   2857 	uint64_t base, addr;
   2858 
   2859 	dst_mode = rdst->surface.u.legacy.level[dst_level].mode;
   2860 	src_mode = rsrc->surface.u.legacy.level[src_level].mode;
   2861 	assert(dst_mode != src_mode);
   2862 
   2863 	y = 0;
   2864 	lbpp = util_logbase2(bpp);
   2865 	pitch_tile_max = ((pitch / bpp) / 8) - 1;
   2866 
   2867 	if (dst_mode == RADEON_SURF_MODE_LINEAR_ALIGNED) {
   2868 		/* T2L */
   2869 		array_mode = r600_array_mode(src_mode);
   2870 		slice_tile_max = (rsrc->surface.u.legacy.level[src_level].nblk_x * rsrc->surface.u.legacy.level[src_level].nblk_y) / (8*8);
   2871 		slice_tile_max = slice_tile_max ? slice_tile_max - 1 : 0;
   2872 		/* linear height must be the same as the slice tile max height, it's ok even
   2873 		 * if the linear destination/source have smaller heigh as the size of the
   2874 		 * dma packet will be using the copy_height which is always smaller or equal
   2875 		 * to the linear height
   2876 		 */
   2877 		height = u_minify(rsrc->resource.b.b.height0, src_level);
   2878 		detile = 1;
   2879 		x = src_x;
   2880 		y = src_y;
   2881 		z = src_z;
   2882 		base = rsrc->surface.u.legacy.level[src_level].offset;
   2883 		addr = rdst->surface.u.legacy.level[dst_level].offset;
   2884 		addr += (uint64_t)rdst->surface.u.legacy.level[dst_level].slice_size_dw * 4 * dst_z;
   2885 		addr += dst_y * pitch + dst_x * bpp;
   2886 	} else {
   2887 		/* L2T */
   2888 		array_mode = r600_array_mode(dst_mode);
   2889 		slice_tile_max = (rdst->surface.u.legacy.level[dst_level].nblk_x * rdst->surface.u.legacy.level[dst_level].nblk_y) / (8*8);
   2890 		slice_tile_max = slice_tile_max ? slice_tile_max - 1 : 0;
   2891 		/* linear height must be the same as the slice tile max height, it's ok even
   2892 		 * if the linear destination/source have smaller heigh as the size of the
   2893 		 * dma packet will be using the copy_height which is always smaller or equal
   2894 		 * to the linear height
   2895 		 */
   2896 		height = u_minify(rdst->resource.b.b.height0, dst_level);
   2897 		detile = 0;
   2898 		x = dst_x;
   2899 		y = dst_y;
   2900 		z = dst_z;
   2901 		base = rdst->surface.u.legacy.level[dst_level].offset;
   2902 		addr = rsrc->surface.u.legacy.level[src_level].offset;
   2903 		addr += (uint64_t)rsrc->surface.u.legacy.level[src_level].slice_size_dw * 4 * src_z;
   2904 		addr += src_y * pitch + src_x * bpp;
   2905 	}
   2906 	/* check that we are in dw/base alignment constraint */
   2907 	if (addr % 4 || base % 256) {
   2908 		return FALSE;
   2909 	}
   2910 
   2911 	/* It's a r6xx/r7xx limitation, the blit must be on 8 boundary for number
   2912 	 * line in the blit. Compute max 8 line we can copy in the size limit
   2913 	 */
   2914 	cheight = ((R600_DMA_COPY_MAX_SIZE_DW * 4) / pitch) & 0xfffffff8;
   2915 	ncopy = (copy_height / cheight) + !!(copy_height % cheight);
   2916 	r600_need_dma_space(&rctx->b, ncopy * 7, &rdst->resource, &rsrc->resource);
   2917 
   2918 	for (i = 0; i < ncopy; i++) {
   2919 		cheight = cheight > copy_height ? copy_height : cheight;
   2920 		size = (cheight * pitch) / 4;
   2921 		/* emit reloc before writing cs so that cs is always in consistent state */
   2922 		radeon_add_to_buffer_list(&rctx->b, &rctx->b.dma, &rsrc->resource, RADEON_USAGE_READ,
   2923 				      RADEON_PRIO_SDMA_TEXTURE);
   2924 		radeon_add_to_buffer_list(&rctx->b, &rctx->b.dma, &rdst->resource, RADEON_USAGE_WRITE,
   2925 				      RADEON_PRIO_SDMA_TEXTURE);
   2926 		radeon_emit(cs, DMA_PACKET(DMA_PACKET_COPY, 1, 0, size));
   2927 		radeon_emit(cs, base >> 8);
   2928 		radeon_emit(cs, (detile << 31) | (array_mode << 27) |
   2929 				(lbpp << 24) | ((height - 1) << 10) |
   2930 				pitch_tile_max);
   2931 		radeon_emit(cs, (slice_tile_max << 12) | (z << 0));
   2932 		radeon_emit(cs, (x << 3) | (y << 17));
   2933 		radeon_emit(cs, addr & 0xfffffffc);
   2934 		radeon_emit(cs, (addr >> 32UL) & 0xff);
   2935 		copy_height -= cheight;
   2936 		addr += cheight * pitch;
   2937 		y += cheight;
   2938 	}
   2939 	return TRUE;
   2940 }
   2941 
   2942 static void r600_dma_copy(struct pipe_context *ctx,
   2943 			  struct pipe_resource *dst,
   2944 			  unsigned dst_level,
   2945 			  unsigned dstx, unsigned dsty, unsigned dstz,
   2946 			  struct pipe_resource *src,
   2947 			  unsigned src_level,
   2948 			  const struct pipe_box *src_box)
   2949 {
   2950 	struct r600_context *rctx = (struct r600_context *)ctx;
   2951 	struct r600_texture *rsrc = (struct r600_texture*)src;
   2952 	struct r600_texture *rdst = (struct r600_texture*)dst;
   2953 	unsigned dst_pitch, src_pitch, bpp, dst_mode, src_mode, copy_height;
   2954 	unsigned src_w, dst_w;
   2955 	unsigned src_x, src_y;
   2956 	unsigned dst_x = dstx, dst_y = dsty, dst_z = dstz;
   2957 
   2958 	if (rctx->b.dma.cs == NULL) {
   2959 		goto fallback;
   2960 	}
   2961 
   2962 	if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
   2963 		if (dst_x % 4 || src_box->x % 4 || src_box->width % 4)
   2964 			goto fallback;
   2965 
   2966 		r600_dma_copy_buffer(rctx, dst, src, dst_x, src_box->x, src_box->width);
   2967 		return;
   2968 	}
   2969 
   2970 	if (src_box->depth > 1 ||
   2971 	    !r600_prepare_for_dma_blit(&rctx->b, rdst, dst_level, dstx, dsty,
   2972 					dstz, rsrc, src_level, src_box))
   2973 		goto fallback;
   2974 
   2975 	src_x = util_format_get_nblocksx(src->format, src_box->x);
   2976 	dst_x = util_format_get_nblocksx(src->format, dst_x);
   2977 	src_y = util_format_get_nblocksy(src->format, src_box->y);
   2978 	dst_y = util_format_get_nblocksy(src->format, dst_y);
   2979 
   2980 	bpp = rdst->surface.bpe;
   2981 	dst_pitch = rdst->surface.u.legacy.level[dst_level].nblk_x * rdst->surface.bpe;
   2982 	src_pitch = rsrc->surface.u.legacy.level[src_level].nblk_x * rsrc->surface.bpe;
   2983 	src_w = u_minify(rsrc->resource.b.b.width0, src_level);
   2984 	dst_w = u_minify(rdst->resource.b.b.width0, dst_level);
   2985 	copy_height = src_box->height / rsrc->surface.blk_h;
   2986 
   2987 	dst_mode = rdst->surface.u.legacy.level[dst_level].mode;
   2988 	src_mode = rsrc->surface.u.legacy.level[src_level].mode;
   2989 
   2990 	if (src_pitch != dst_pitch || src_box->x || dst_x || src_w != dst_w) {
   2991 		/* strict requirement on r6xx/r7xx */
   2992 		goto fallback;
   2993 	}
   2994 	/* lot of constraint on alignment this should capture them all */
   2995 	if (src_pitch % 8 || src_box->y % 8 || dst_y % 8) {
   2996 		goto fallback;
   2997 	}
   2998 
   2999 	if (src_mode == dst_mode) {
   3000 		uint64_t dst_offset, src_offset, size;
   3001 
   3002 		/* simple dma blit would do NOTE code here assume :
   3003 		 *   src_box.x/y == 0
   3004 		 *   dst_x/y == 0
   3005 		 *   dst_pitch == src_pitch
   3006 		 */
   3007 		src_offset= rsrc->surface.u.legacy.level[src_level].offset;
   3008 		src_offset += (uint64_t)rsrc->surface.u.legacy.level[src_level].slice_size_dw * 4 * src_box->z;
   3009 		src_offset += src_y * src_pitch + src_x * bpp;
   3010 		dst_offset = rdst->surface.u.legacy.level[dst_level].offset;
   3011 		dst_offset += (uint64_t)rdst->surface.u.legacy.level[dst_level].slice_size_dw * 4 * dst_z;
   3012 		dst_offset += dst_y * dst_pitch + dst_x * bpp;
   3013 		size = src_box->height * src_pitch;
   3014 		/* must be dw aligned */
   3015 		if (dst_offset % 4 || src_offset % 4 || size % 4) {
   3016 			goto fallback;
   3017 		}
   3018 		r600_dma_copy_buffer(rctx, dst, src, dst_offset, src_offset, size);
   3019 	} else {
   3020 		if (!r600_dma_copy_tile(rctx, dst, dst_level, dst_x, dst_y, dst_z,
   3021 					src, src_level, src_x, src_y, src_box->z,
   3022 					copy_height, dst_pitch, bpp)) {
   3023 			goto fallback;
   3024 		}
   3025 	}
   3026 	return;
   3027 
   3028 fallback:
   3029 	r600_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
   3030 				  src, src_level, src_box);
   3031 }
   3032 
   3033 void r600_init_state_functions(struct r600_context *rctx)
   3034 {
   3035 	unsigned id = 1;
   3036 	unsigned i;
   3037 	/* !!!
   3038 	 *  To avoid GPU lockup registers must be emited in a specific order
   3039 	 * (no kidding ...). The order below is important and have been
   3040 	 * partialy infered from analyzing fglrx command stream.
   3041 	 *
   3042 	 * Don't reorder atom without carefully checking the effect (GPU lockup
   3043 	 * or piglit regression).
   3044 	 * !!!
   3045 	 */
   3046 
   3047 	r600_init_atom(rctx, &rctx->framebuffer.atom, id++, r600_emit_framebuffer_state, 0);
   3048 
   3049 	/* shader const */
   3050 	r600_init_atom(rctx, &rctx->constbuf_state[PIPE_SHADER_VERTEX].atom, id++, r600_emit_vs_constant_buffers, 0);
   3051 	r600_init_atom(rctx, &rctx->constbuf_state[PIPE_SHADER_GEOMETRY].atom, id++, r600_emit_gs_constant_buffers, 0);
   3052 	r600_init_atom(rctx, &rctx->constbuf_state[PIPE_SHADER_FRAGMENT].atom, id++, r600_emit_ps_constant_buffers, 0);
   3053 
   3054 	/* sampler must be emited before TA_CNTL_AUX otherwise DISABLE_CUBE_WRAP change
   3055 	 * does not take effect (TA_CNTL_AUX emited by r600_emit_seamless_cube_map)
   3056 	 */
   3057 	r600_init_atom(rctx, &rctx->samplers[PIPE_SHADER_VERTEX].states.atom, id++, r600_emit_vs_sampler_states, 0);
   3058 	r600_init_atom(rctx, &rctx->samplers[PIPE_SHADER_GEOMETRY].states.atom, id++, r600_emit_gs_sampler_states, 0);
   3059 	r600_init_atom(rctx, &rctx->samplers[PIPE_SHADER_FRAGMENT].states.atom, id++, r600_emit_ps_sampler_states, 0);
   3060 	/* resource */
   3061 	r600_init_atom(rctx, &rctx->samplers[PIPE_SHADER_VERTEX].views.atom, id++, r600_emit_vs_sampler_views, 0);
   3062 	r600_init_atom(rctx, &rctx->samplers[PIPE_SHADER_GEOMETRY].views.atom, id++, r600_emit_gs_sampler_views, 0);
   3063 	r600_init_atom(rctx, &rctx->samplers[PIPE_SHADER_FRAGMENT].views.atom, id++, r600_emit_ps_sampler_views, 0);
   3064 	r600_init_atom(rctx, &rctx->vertex_buffer_state.atom, id++, r600_emit_vertex_buffers, 0);
   3065 
   3066 	r600_init_atom(rctx, &rctx->vgt_state.atom, id++, r600_emit_vgt_state, 10);
   3067 
   3068 	r600_init_atom(rctx, &rctx->seamless_cube_map.atom, id++, r600_emit_seamless_cube_map, 3);
   3069 	r600_init_atom(rctx, &rctx->sample_mask.atom, id++, r600_emit_sample_mask, 3);
   3070 	rctx->sample_mask.sample_mask = ~0;
   3071 
   3072 	r600_init_atom(rctx, &rctx->alphatest_state.atom, id++, r600_emit_alphatest_state, 6);
   3073 	r600_init_atom(rctx, &rctx->blend_color.atom, id++, r600_emit_blend_color, 6);
   3074 	r600_init_atom(rctx, &rctx->blend_state.atom, id++, r600_emit_cso_state, 0);
   3075 	r600_init_atom(rctx, &rctx->cb_misc_state.atom, id++, r600_emit_cb_misc_state, 7);
   3076 	r600_init_atom(rctx, &rctx->clip_misc_state.atom, id++, r600_emit_clip_misc_state, 6);
   3077 	r600_init_atom(rctx, &rctx->clip_state.atom, id++, r600_emit_clip_state, 26);
   3078 	r600_init_atom(rctx, &rctx->db_misc_state.atom, id++, r600_emit_db_misc_state, 7);
   3079 	r600_init_atom(rctx, &rctx->db_state.atom, id++, r600_emit_db_state, 11);
   3080 	r600_init_atom(rctx, &rctx->dsa_state.atom, id++, r600_emit_cso_state, 0);
   3081 	r600_init_atom(rctx, &rctx->poly_offset_state.atom, id++, r600_emit_polygon_offset, 9);
   3082 	r600_init_atom(rctx, &rctx->rasterizer_state.atom, id++, r600_emit_cso_state, 0);
   3083 	r600_add_atom(rctx, &rctx->b.scissors.atom, id++);
   3084 	r600_add_atom(rctx, &rctx->b.viewports.atom, id++);
   3085 	r600_init_atom(rctx, &rctx->config_state.atom, id++, r600_emit_config_state, 3);
   3086 	r600_init_atom(rctx, &rctx->stencil_ref.atom, id++, r600_emit_stencil_ref, 4);
   3087 	r600_init_atom(rctx, &rctx->vertex_fetch_shader.atom, id++, r600_emit_vertex_fetch_shader, 5);
   3088 	r600_add_atom(rctx, &rctx->b.render_cond_atom, id++);
   3089 	r600_add_atom(rctx, &rctx->b.streamout.begin_atom, id++);
   3090 	r600_add_atom(rctx, &rctx->b.streamout.enable_atom, id++);
   3091 	for (i = 0; i < R600_NUM_HW_STAGES; i++)
   3092 		r600_init_atom(rctx, &rctx->hw_shader_stages[i].atom, id++, r600_emit_shader, 0);
   3093 	r600_init_atom(rctx, &rctx->shader_stages.atom, id++, r600_emit_shader_stages, 0);
   3094 	r600_init_atom(rctx, &rctx->gs_rings.atom, id++, r600_emit_gs_rings, 0);
   3095 
   3096 	rctx->b.b.create_blend_state = r600_create_blend_state;
   3097 	rctx->b.b.create_depth_stencil_alpha_state = r600_create_dsa_state;
   3098 	rctx->b.b.create_rasterizer_state = r600_create_rs_state;
   3099 	rctx->b.b.create_sampler_state = r600_create_sampler_state;
   3100 	rctx->b.b.create_sampler_view = r600_create_sampler_view;
   3101 	rctx->b.b.set_framebuffer_state = r600_set_framebuffer_state;
   3102 	rctx->b.b.set_polygon_stipple = r600_set_polygon_stipple;
   3103 	rctx->b.b.set_min_samples = r600_set_min_samples;
   3104 	rctx->b.b.get_sample_position = r600_get_sample_position;
   3105 	rctx->b.dma_copy = r600_dma_copy;
   3106 }
   3107 /* this function must be last */
   3108