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1 /*
2  * Copyright 2010 Jerome Glisse <glisse@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
si_invalidate_draw_sh_constants(struct si_context * sctx)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
si_set_atom_dirty(struct si_context * sctx,struct r600_atom * atom,bool dirty)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
si_is_atom_dirty(struct si_context * sctx,struct r600_atom * atom)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
si_mark_atom_dirty(struct si_context * sctx,struct r600_atom * atom)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 
si_get_vs_info(struct si_context * sctx)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 
si_get_vs_state(struct si_context * sctx)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 
si_vs_exports_prim_id(struct si_shader * shader)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