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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  * Authors:
     24  *      Jerome Glisse
     25  */
     26 #ifndef SI_PIPE_H
     27 #define SI_PIPE_H
     28 
     29 #include "si_shader.h"
     30 
     31 #ifdef PIPE_ARCH_BIG_ENDIAN
     32 #define SI_BIG_ENDIAN 1
     33 #else
     34 #define SI_BIG_ENDIAN 0
     35 #endif
     36 
     37 /* The base vertex and primitive restart can be any number, but we must pick
     38  * one which will mean "unknown" for the purpose of state tracking and
     39  * the number shouldn't be a commonly-used one. */
     40 #define SI_BASE_VERTEX_UNKNOWN INT_MIN
     41 #define SI_RESTART_INDEX_UNKNOWN INT_MIN
     42 #define SI_NUM_SMOOTH_AA_SAMPLES 8
     43 #define SI_GS_PER_ES 128
     44 
     45 /* Instruction cache. */
     46 #define SI_CONTEXT_INV_ICACHE		(R600_CONTEXT_PRIVATE_FLAG << 0)
     47 /* SMEM L1, other names: KCACHE, constant cache, DCACHE, data cache */
     48 #define SI_CONTEXT_INV_SMEM_L1		(R600_CONTEXT_PRIVATE_FLAG << 1)
     49 /* VMEM L1 can optionally be bypassed (GLC=1). Other names: TC L1 */
     50 #define SI_CONTEXT_INV_VMEM_L1		(R600_CONTEXT_PRIVATE_FLAG << 2)
     51 /* Used by everything except CB/DB, can be bypassed (SLC=1). Other names: TC L2 */
     52 #define SI_CONTEXT_INV_GLOBAL_L2	(R600_CONTEXT_PRIVATE_FLAG << 3)
     53 /* Write dirty L2 lines back to memory (shader and CP DMA stores), but don't
     54  * invalidate L2. SI-CIK can't do it, so they will do complete invalidation. */
     55 #define SI_CONTEXT_WRITEBACK_GLOBAL_L2	(R600_CONTEXT_PRIVATE_FLAG << 4)
     56 /* Framebuffer caches. */
     57 #define SI_CONTEXT_FLUSH_AND_INV_CB_META (R600_CONTEXT_PRIVATE_FLAG << 5)
     58 #define SI_CONTEXT_FLUSH_AND_INV_DB_META (R600_CONTEXT_PRIVATE_FLAG << 6)
     59 #define SI_CONTEXT_FLUSH_AND_INV_DB	(R600_CONTEXT_PRIVATE_FLAG << 7)
     60 #define SI_CONTEXT_FLUSH_AND_INV_CB	(R600_CONTEXT_PRIVATE_FLAG << 8)
     61 /* Engine synchronization. */
     62 #define SI_CONTEXT_VS_PARTIAL_FLUSH	(R600_CONTEXT_PRIVATE_FLAG << 9)
     63 #define SI_CONTEXT_PS_PARTIAL_FLUSH	(R600_CONTEXT_PRIVATE_FLAG << 10)
     64 #define SI_CONTEXT_CS_PARTIAL_FLUSH	(R600_CONTEXT_PRIVATE_FLAG << 11)
     65 #define SI_CONTEXT_VGT_FLUSH		(R600_CONTEXT_PRIVATE_FLAG << 12)
     66 #define SI_CONTEXT_VGT_STREAMOUT_SYNC	(R600_CONTEXT_PRIVATE_FLAG << 13)
     67 
     68 #define SI_CONTEXT_FLUSH_AND_INV_FRAMEBUFFER (SI_CONTEXT_FLUSH_AND_INV_CB | \
     69 					      SI_CONTEXT_FLUSH_AND_INV_CB_META | \
     70 					      SI_CONTEXT_FLUSH_AND_INV_DB | \
     71 					      SI_CONTEXT_FLUSH_AND_INV_DB_META)
     72 
     73 #define SI_MAX_BORDER_COLORS	4096
     74 
     75 struct si_compute;
     76 struct hash_table;
     77 struct u_suballocator;
     78 
     79 struct si_screen {
     80 	struct r600_common_screen	b;
     81 	unsigned			gs_table_depth;
     82 	unsigned			tess_offchip_block_dw_size;
     83 	bool				has_distributed_tess;
     84 	bool				has_draw_indirect_multi;
     85 	bool				has_ds_bpermute;
     86 
     87 	/* Whether shaders are monolithic (1-part) or separate (3-part). */
     88 	bool				use_monolithic_shaders;
     89 	bool				record_llvm_ir;
     90 
     91 	pipe_mutex			shader_parts_mutex;
     92 	struct si_shader_part		*vs_prologs;
     93 	struct si_shader_part		*vs_epilogs;
     94 	struct si_shader_part		*tcs_epilogs;
     95 	struct si_shader_part		*gs_prologs;
     96 	struct si_shader_part		*ps_prologs;
     97 	struct si_shader_part		*ps_epilogs;
     98 
     99 	/* Shader cache in memory.
    100 	 *
    101 	 * Design & limitations:
    102 	 * - The shader cache is per screen (= per process), never saved to
    103 	 *   disk, and skips redundant shader compilations from TGSI to bytecode.
    104 	 * - It can only be used with one-variant-per-shader support, in which
    105 	 *   case only the main (typically middle) part of shaders is cached.
    106 	 * - Only VS, TCS, TES, PS are cached, out of which only the hw VS
    107 	 *   variants of VS and TES are cached, so LS and ES aren't.
    108 	 * - GS and CS aren't cached, but it's certainly possible to cache
    109 	 *   those as well.
    110 	 */
    111 	pipe_mutex			shader_cache_mutex;
    112 	struct hash_table		*shader_cache;
    113 
    114 	/* Shader compiler queue for multithreaded compilation. */
    115 	struct util_queue		shader_compiler_queue;
    116 	LLVMTargetMachineRef		tm[4]; /* used by the queue only */
    117 };
    118 
    119 struct si_blend_color {
    120 	struct r600_atom		atom;
    121 	struct pipe_blend_color		state;
    122 };
    123 
    124 struct si_sampler_view {
    125 	struct pipe_sampler_view	base;
    126         /* [0..7] = image descriptor
    127          * [4..7] = buffer descriptor */
    128 	uint32_t			state[8];
    129 	uint32_t			fmask_state[8];
    130 	const struct radeon_surf_level	*base_level_info;
    131 	unsigned			base_level;
    132 	unsigned			block_width;
    133 	bool is_stencil_sampler;
    134 };
    135 
    136 #define SI_SAMPLER_STATE_MAGIC 0x34f1c35a
    137 
    138 struct si_sampler_state {
    139 #ifdef DEBUG
    140 	unsigned			magic;
    141 #endif
    142 	uint32_t			val[4];
    143 };
    144 
    145 struct si_cs_shader_state {
    146 	struct si_compute		*program;
    147 	struct si_compute		*emitted_program;
    148 	unsigned			offset;
    149 	bool				initialized;
    150 	bool				uses_scratch;
    151 };
    152 
    153 struct si_textures_info {
    154 	struct si_sampler_views		views;
    155 	uint32_t			depth_texture_mask; /* which textures are depth */
    156 	uint32_t			compressed_colortex_mask;
    157 };
    158 
    159 struct si_images_info {
    160 	struct pipe_image_view		views[SI_NUM_IMAGES];
    161 	uint32_t			compressed_colortex_mask;
    162 	unsigned			enabled_mask;
    163 };
    164 
    165 struct si_framebuffer {
    166 	struct r600_atom		atom;
    167 	struct pipe_framebuffer_state	state;
    168 	unsigned			nr_samples;
    169 	unsigned			log_samples;
    170 	unsigned			compressed_cb_mask;
    171 	unsigned			colorbuf_enabled_4bit;
    172 	unsigned			spi_shader_col_format;
    173 	unsigned			spi_shader_col_format_alpha;
    174 	unsigned			spi_shader_col_format_blend;
    175 	unsigned			spi_shader_col_format_blend_alpha;
    176 	unsigned			color_is_int8;
    177 	unsigned			color_is_int10;
    178 	unsigned			dirty_cbufs;
    179 	bool				dirty_zsbuf;
    180 	bool				any_dst_linear;
    181 };
    182 
    183 struct si_clip_state {
    184 	struct r600_atom		atom;
    185 	struct pipe_clip_state		state;
    186 };
    187 
    188 struct si_sample_locs {
    189 	struct r600_atom	atom;
    190 	unsigned		nr_samples;
    191 };
    192 
    193 struct si_sample_mask {
    194 	struct r600_atom	atom;
    195 	uint16_t		sample_mask;
    196 };
    197 
    198 /* A shader state consists of the shader selector, which is a constant state
    199  * object shared by multiple contexts and shouldn't be modified, and
    200  * the current shader variant selected for this context.
    201  */
    202 struct si_shader_ctx_state {
    203 	struct si_shader_selector	*cso;
    204 	struct si_shader		*current;
    205 };
    206 
    207 struct si_context {
    208 	struct r600_common_context	b;
    209 	struct blitter_context		*blitter;
    210 	void				*custom_dsa_flush;
    211 	void				*custom_blend_resolve;
    212 	void				*custom_blend_decompress;
    213 	void				*custom_blend_fastclear;
    214 	void				*custom_blend_dcc_decompress;
    215 	struct si_screen		*screen;
    216 
    217 	struct radeon_winsys_cs		*ce_ib;
    218 	struct radeon_winsys_cs		*ce_preamble_ib;
    219 	bool				ce_need_synchronization;
    220 	struct u_suballocator		*ce_suballocator;
    221 
    222 	struct si_shader_ctx_state	fixed_func_tcs_shader;
    223 	LLVMTargetMachineRef		tm; /* only non-threaded compilation */
    224 	bool				gfx_flush_in_progress;
    225 	bool				compute_is_busy;
    226 
    227 	/* Atoms (direct states). */
    228 	union si_state_atoms		atoms;
    229 	unsigned			dirty_atoms; /* mask */
    230 	/* PM4 states (precomputed immutable states) */
    231 	union si_state			queued;
    232 	union si_state			emitted;
    233 
    234 	/* Atom declarations. */
    235 	struct si_framebuffer		framebuffer;
    236 	struct si_sample_locs		msaa_sample_locs;
    237 	struct r600_atom		db_render_state;
    238 	struct r600_atom		msaa_config;
    239 	struct si_sample_mask		sample_mask;
    240 	struct r600_atom		cb_render_state;
    241 	struct si_blend_color		blend_color;
    242 	struct r600_atom		clip_regs;
    243 	struct si_clip_state		clip_state;
    244 	struct si_shader_data		shader_userdata;
    245 	struct si_stencil_ref		stencil_ref;
    246 	struct r600_atom		spi_map;
    247 
    248 	/* Precomputed states. */
    249 	struct si_pm4_state		*init_config;
    250 	struct si_pm4_state		*init_config_gs_rings;
    251 	bool				init_config_has_vgt_flush;
    252 	struct si_pm4_state		*vgt_shader_config[4];
    253 
    254 	/* shaders */
    255 	struct si_shader_ctx_state	ps_shader;
    256 	struct si_shader_ctx_state	gs_shader;
    257 	struct si_shader_ctx_state	vs_shader;
    258 	struct si_shader_ctx_state	tcs_shader;
    259 	struct si_shader_ctx_state	tes_shader;
    260 	struct si_cs_shader_state	cs_shader_state;
    261 
    262 	/* shader information */
    263 	struct si_vertex_element	*vertex_elements;
    264 	unsigned			sprite_coord_enable;
    265 	bool				flatshade;
    266 	bool				do_update_shaders;
    267 
    268 	/* shader descriptors */
    269 	struct si_descriptors		vertex_buffers;
    270 	struct si_descriptors		descriptors[SI_NUM_DESCS];
    271 	unsigned			descriptors_dirty;
    272 	unsigned			shader_pointers_dirty;
    273 	unsigned			compressed_tex_shader_mask;
    274 	struct si_buffer_resources	rw_buffers;
    275 	struct si_buffer_resources	const_buffers[SI_NUM_SHADERS];
    276 	struct si_buffer_resources	shader_buffers[SI_NUM_SHADERS];
    277 	struct si_textures_info		samplers[SI_NUM_SHADERS];
    278 	struct si_images_info		images[SI_NUM_SHADERS];
    279 
    280 	/* other shader resources */
    281 	struct pipe_constant_buffer	null_const_buf; /* used for set_constant_buffer(NULL) on CIK */
    282 	struct pipe_resource		*esgs_ring;
    283 	struct pipe_resource		*gsvs_ring;
    284 	struct pipe_resource		*tf_ring;
    285 	struct pipe_resource		*tess_offchip_ring;
    286 	union pipe_color_union		*border_color_table; /* in CPU memory, any endian */
    287 	struct r600_resource		*border_color_buffer;
    288 	union pipe_color_union		*border_color_map; /* in VRAM (slow access), little endian */
    289 	unsigned			border_color_count;
    290 
    291 	/* Vertex and index buffers. */
    292 	bool				vertex_buffers_dirty;
    293 	bool				vertex_buffer_pointer_dirty;
    294 	struct pipe_index_buffer	index_buffer;
    295 	struct pipe_vertex_buffer	vertex_buffer[SI_NUM_VERTEX_BUFFERS];
    296 
    297 	/* MSAA config state. */
    298 	int				ps_iter_samples;
    299 	bool				smoothing_enabled;
    300 
    301 	/* DB render state. */
    302 	bool			dbcb_depth_copy_enabled;
    303 	bool			dbcb_stencil_copy_enabled;
    304 	unsigned		dbcb_copy_sample;
    305 	bool			db_flush_depth_inplace;
    306 	bool			db_flush_stencil_inplace;
    307 	bool			db_depth_clear;
    308 	bool			db_depth_disable_expclear;
    309 	bool			db_stencil_clear;
    310 	bool			db_stencil_disable_expclear;
    311 	unsigned		ps_db_shader_control;
    312 	bool			occlusion_queries_disabled;
    313 
    314 	/* Emitted draw state. */
    315 	int			last_index_size;
    316 	int			last_base_vertex;
    317 	int			last_start_instance;
    318 	int			last_drawid;
    319 	int			last_sh_base_reg;
    320 	int			last_primitive_restart_en;
    321 	int			last_restart_index;
    322 	int			last_gs_out_prim;
    323 	int			last_prim;
    324 	int			last_multi_vgt_param;
    325 	int			last_rast_prim;
    326 	unsigned		last_sc_line_stipple;
    327 	int			last_vtx_reuse_depth;
    328 	int			current_rast_prim; /* primitive type after TES, GS */
    329 	bool			gs_tri_strip_adj_fix;
    330 
    331 	/* Scratch buffer */
    332 	struct r600_resource	*scratch_buffer;
    333 	bool			emit_scratch_reloc;
    334 	unsigned		scratch_waves;
    335 	unsigned		spi_tmpring_size;
    336 
    337 	struct r600_resource	*compute_scratch_buffer;
    338 
    339 	/* Emitted derived tessellation state. */
    340 	struct si_shader	*last_ls; /* local shader (VS) */
    341 	struct si_shader_selector *last_tcs;
    342 	int			last_num_tcs_input_cp;
    343 	int			last_tes_sh_base;
    344 	unsigned		last_num_patches;
    345 
    346 	/* Debug state. */
    347 	bool			is_debug;
    348 	struct radeon_saved_cs	last_gfx;
    349 	struct r600_resource	*last_trace_buf;
    350 	struct r600_resource	*trace_buf;
    351 	unsigned		trace_id;
    352 	uint64_t		dmesg_timestamp;
    353 	unsigned		apitrace_call_number;
    354 
    355 	/* Other state */
    356 	bool need_check_render_feedback;
    357 };
    358 
    359 /* cik_sdma.c */
    360 void cik_init_sdma_functions(struct si_context *sctx);
    361 
    362 /* si_blit.c */
    363 void si_init_blit_functions(struct si_context *sctx);
    364 void si_decompress_graphics_textures(struct si_context *sctx);
    365 void si_decompress_compute_textures(struct si_context *sctx);
    366 void si_resource_copy_region(struct pipe_context *ctx,
    367 			     struct pipe_resource *dst,
    368 			     unsigned dst_level,
    369 			     unsigned dstx, unsigned dsty, unsigned dstz,
    370 			     struct pipe_resource *src,
    371 			     unsigned src_level,
    372 			     const struct pipe_box *src_box);
    373 
    374 /* si_cp_dma.c */
    375 #define SI_CPDMA_SKIP_CHECK_CS_SPACE	(1 << 0) /* don't call need_cs_space */
    376 #define SI_CPDMA_SKIP_SYNC_AFTER	(1 << 1) /* don't wait for DMA after the copy */
    377 #define SI_CPDMA_SKIP_SYNC_BEFORE	(1 << 2) /* don't wait for DMA before the copy (RAW hazards) */
    378 #define SI_CPDMA_SKIP_GFX_SYNC		(1 << 3) /* don't flush caches and don't wait for PS/CS */
    379 #define SI_CPDMA_SKIP_BO_LIST_UPDATE	(1 << 4) /* don't update the BO list */
    380 #define SI_CPDMA_SKIP_ALL (SI_CPDMA_SKIP_CHECK_CS_SPACE | \
    381 			   SI_CPDMA_SKIP_SYNC_AFTER | \
    382 			   SI_CPDMA_SKIP_SYNC_BEFORE | \
    383 			   SI_CPDMA_SKIP_GFX_SYNC | \
    384 			   SI_CPDMA_SKIP_BO_LIST_UPDATE)
    385 
    386 void si_copy_buffer(struct si_context *sctx,
    387 		    struct pipe_resource *dst, struct pipe_resource *src,
    388 		    uint64_t dst_offset, uint64_t src_offset, unsigned size,
    389 		    unsigned user_flags);
    390 void cik_prefetch_TC_L2_async(struct si_context *sctx, struct pipe_resource *buf,
    391 			      uint64_t offset, unsigned size);
    392 void si_init_cp_dma_functions(struct si_context *sctx);
    393 
    394 /* si_debug.c */
    395 void si_init_debug_functions(struct si_context *sctx);
    396 void si_check_vm_faults(struct r600_common_context *ctx,
    397 			struct radeon_saved_cs *saved, enum ring_type ring);
    398 bool si_replace_shader(unsigned num, struct radeon_shader_binary *binary);
    399 
    400 /* si_dma.c */
    401 void si_init_dma_functions(struct si_context *sctx);
    402 
    403 /* si_hw_context.c */
    404 void si_context_gfx_flush(void *context, unsigned flags,
    405 			  struct pipe_fence_handle **fence);
    406 void si_begin_new_cs(struct si_context *ctx);
    407 void si_need_cs_space(struct si_context *ctx);
    408 
    409 /* si_compute.c */
    410 void si_init_compute_functions(struct si_context *sctx);
    411 
    412 /* si_perfcounters.c */
    413 void si_init_perfcounters(struct si_screen *screen);
    414 
    415 /* si_uvd.c */
    416 struct pipe_video_codec *si_uvd_create_decoder(struct pipe_context *context,
    417 					       const struct pipe_video_codec *templ);
    418 
    419 struct pipe_video_buffer *si_video_buffer_create(struct pipe_context *pipe,
    420 						 const struct pipe_video_buffer *tmpl);
    421 
    422 /*
    423  * common helpers
    424  */
    425 
    426 static inline void
    427 si_invalidate_draw_sh_constants(struct si_context *sctx)
    428 {
    429 	sctx->last_base_vertex = SI_BASE_VERTEX_UNKNOWN;
    430 }
    431 
    432 static inline void
    433 si_set_atom_dirty(struct si_context *sctx,
    434 		  struct r600_atom *atom, bool dirty)
    435 {
    436 	unsigned bit = 1 << (atom->id - 1);
    437 
    438 	if (dirty)
    439 		sctx->dirty_atoms |= bit;
    440 	else
    441 		sctx->dirty_atoms &= ~bit;
    442 }
    443 
    444 static inline bool
    445 si_is_atom_dirty(struct si_context *sctx,
    446 		  struct r600_atom *atom)
    447 {
    448 	unsigned bit = 1 << (atom->id - 1);
    449 
    450 	return sctx->dirty_atoms & bit;
    451 }
    452 
    453 static inline void
    454 si_mark_atom_dirty(struct si_context *sctx,
    455 		   struct r600_atom *atom)
    456 {
    457 	si_set_atom_dirty(sctx, atom, true);
    458 }
    459 
    460 static inline struct tgsi_shader_info *si_get_vs_info(struct si_context *sctx)
    461 {
    462 	if (sctx->gs_shader.cso)
    463 		return &sctx->gs_shader.cso->info;
    464 	else if (sctx->tes_shader.cso)
    465 		return &sctx->tes_shader.cso->info;
    466 	else if (sctx->vs_shader.cso)
    467 		return &sctx->vs_shader.cso->info;
    468 	else
    469 		return NULL;
    470 }
    471 
    472 static inline struct si_shader* si_get_vs_state(struct si_context *sctx)
    473 {
    474 	if (sctx->gs_shader.current)
    475 		return sctx->gs_shader.cso->gs_copy_shader;
    476 	else if (sctx->tes_shader.current)
    477 		return sctx->tes_shader.current;
    478 	else
    479 		return sctx->vs_shader.current;
    480 }
    481 
    482 static inline bool si_vs_exports_prim_id(struct si_shader *shader)
    483 {
    484 	if (shader->selector->type == PIPE_SHADER_VERTEX)
    485 		return shader->key.part.vs.epilog.export_prim_id;
    486 	else if (shader->selector->type == PIPE_SHADER_TESS_EVAL)
    487 		return shader->key.part.tes.epilog.export_prim_id;
    488 	else
    489 		return false;
    490 }
    491 
    492 #endif
    493