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