2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice (including the
15 next paragraph) shall be included in all copies or substantial
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
29 * Keith Whitwell <keithw@vmware.com>
38 #include "brw_structs.h"
39 #include "brw_defines.h"
41 #include "intel_asm_annotation.h"
42 #include "program/prog_instruction.h"
48 #define BRW_EU_MAX_INSN_STACK 5
50 /* A helper for accessing the last instruction emitted. This makes it easy
51 * to set various bits on an instruction without having to create temporary
52 * variable and assign the emitted instruction to those.
54 #define brw_last_inst (&p->store[p->nr_insn - 1])
60 unsigned int next_insn_offset
;
64 /* Allow clients to push/pop instruction state:
66 brw_inst stack
[BRW_EU_MAX_INSN_STACK
];
67 bool compressed_stack
[BRW_EU_MAX_INSN_STACK
];
70 bool single_program_flow
;
72 struct brw_context
*brw
;
74 /* Control flow stacks:
75 * - if_stack contains IF and ELSE instructions which must be patched
76 * (and popped) once the matching ENDIF instruction is encountered.
78 * Just store the instruction pointer(an index).
82 int if_stack_array_size
;
85 * loop_stack contains the instruction pointers of the starts of loops which
86 * must be patched (and popped) once the matching WHILE instruction is
91 * pre-gen6, the BREAK and CONT instructions had to tell how many IF/ENDIF
92 * blocks they were popping out of, to fix up the mask stack. This tracks
93 * the IF/ENDIF nesting in each current nested loop level.
95 int *if_depth_in_loop
;
97 int loop_stack_array_size
;
100 void brw_pop_insn_state( struct brw_compile
*p
);
101 void brw_push_insn_state( struct brw_compile
*p
);
102 void brw_set_default_mask_control( struct brw_compile
*p
, unsigned value
);
103 void brw_set_default_saturate( struct brw_compile
*p
, bool enable
);
104 void brw_set_default_access_mode( struct brw_compile
*p
, unsigned access_mode
);
105 void brw_set_default_compression_control(struct brw_compile
*p
, enum brw_compression c
);
106 void brw_set_default_predicate_control( struct brw_compile
*p
, unsigned pc
);
107 void brw_set_default_predicate_inverse(struct brw_compile
*p
, bool predicate_inverse
);
108 void brw_set_default_flag_reg(struct brw_compile
*p
, int reg
, int subreg
);
109 void brw_set_default_acc_write_control(struct brw_compile
*p
, unsigned value
);
111 void brw_init_compile(struct brw_context
*, struct brw_compile
*p
,
113 void brw_disassemble(struct brw_context
*brw
, void *assembly
,
114 int start
, int end
, FILE *out
);
115 const unsigned *brw_get_program( struct brw_compile
*p
, unsigned *sz
);
117 brw_inst
*brw_next_insn(struct brw_compile
*p
, unsigned opcode
);
118 void brw_set_dest(struct brw_compile
*p
, brw_inst
*insn
, struct brw_reg dest
);
119 void brw_set_src0(struct brw_compile
*p
, brw_inst
*insn
, struct brw_reg reg
);
121 void gen6_resolve_implied_move(struct brw_compile
*p
,
123 unsigned msg_reg_nr
);
125 /* Helpers for regular instructions:
128 brw_inst *brw_##OP(struct brw_compile *p, \
129 struct brw_reg dest, \
130 struct brw_reg src0);
133 brw_inst *brw_##OP(struct brw_compile *p, \
134 struct brw_reg dest, \
135 struct brw_reg src0, \
136 struct brw_reg src1);
139 brw_inst *brw_##OP(struct brw_compile *p, \
140 struct brw_reg dest, \
141 struct brw_reg src0, \
142 struct brw_reg src1, \
143 struct brw_reg src2);
146 void brw_##OP(struct brw_compile *p, struct brw_reg dest, struct brw_reg src0);
195 /* Helpers for SEND instruction:
197 void brw_set_sampler_message(struct brw_compile
*p
,
199 unsigned binding_table_index
,
202 unsigned response_length
,
204 unsigned header_present
,
206 unsigned return_format
);
208 void brw_set_indirect_send_descriptor(struct brw_compile
*p
,
211 struct brw_reg descriptor
);
213 void brw_set_dp_read_message(struct brw_compile
*p
,
215 unsigned binding_table_index
,
216 unsigned msg_control
,
218 unsigned target_cache
,
221 unsigned response_length
);
223 void brw_set_dp_write_message(struct brw_compile
*p
,
225 unsigned binding_table_index
,
226 unsigned msg_control
,
230 unsigned last_render_target
,
231 unsigned response_length
,
232 unsigned end_of_thread
,
233 unsigned send_commit_msg
);
235 void brw_urb_WRITE(struct brw_compile
*p
,
239 enum brw_urb_write_flags flags
,
241 unsigned response_length
,
245 void brw_ff_sync(struct brw_compile
*p
,
250 unsigned response_length
,
253 void brw_svb_write(struct brw_compile
*p
,
257 unsigned binding_table_index
,
258 bool send_commit_msg
);
260 void brw_fb_WRITE(struct brw_compile
*p
,
262 struct brw_reg payload
,
263 struct brw_reg implied_header
,
264 unsigned msg_control
,
265 unsigned binding_table_index
,
267 unsigned response_length
,
269 bool last_render_target
,
270 bool header_present
);
272 void brw_SAMPLE(struct brw_compile
*p
,
276 unsigned binding_table_index
,
279 unsigned response_length
,
281 unsigned header_present
,
283 unsigned return_format
);
285 void brw_adjust_sampler_state_pointer(struct brw_compile
*p
,
286 struct brw_reg header
,
287 struct brw_reg sampler_index
);
289 void gen4_math(struct brw_compile
*p
,
294 unsigned precision
);
296 void gen6_math(struct brw_compile
*p
,
300 struct brw_reg src1
);
302 void brw_oword_block_read(struct brw_compile
*p
,
306 uint32_t bind_table_index
);
308 void brw_oword_block_read_scratch(struct brw_compile
*p
,
314 void brw_oword_block_write_scratch(struct brw_compile
*p
,
319 void gen7_block_read_scratch(struct brw_compile
*p
,
324 void brw_shader_time_add(struct brw_compile
*p
,
325 struct brw_reg payload
,
326 uint32_t surf_index
);
329 * Return the generation-specific jump distance scaling factor.
331 * Given the number of instructions to jump, we need to scale by
332 * some number to obtain the actual jump distance to program in an
335 static inline unsigned
336 brw_jump_scale(const struct brw_context
*brw
)
338 /* Broadwell measures jump targets in bytes. */
342 /* Ironlake and later measure jump targets in 64-bit data chunks (in order
343 * (to support compaction), so each 128-bit instruction requires 2 chunks.
348 /* Gen4 simply uses the number of 128-bit instructions. */
352 /* If/else/endif. Works by manipulating the execution flags on each
355 brw_inst
*brw_IF(struct brw_compile
*p
, unsigned execute_size
);
356 brw_inst
*gen6_IF(struct brw_compile
*p
, enum brw_conditional_mod conditional
,
357 struct brw_reg src0
, struct brw_reg src1
);
359 void brw_ELSE(struct brw_compile
*p
);
360 void brw_ENDIF(struct brw_compile
*p
);
364 brw_inst
*brw_DO(struct brw_compile
*p
, unsigned execute_size
);
366 brw_inst
*brw_WHILE(struct brw_compile
*p
);
368 brw_inst
*brw_BREAK(struct brw_compile
*p
);
369 brw_inst
*brw_CONT(struct brw_compile
*p
);
370 brw_inst
*gen6_HALT(struct brw_compile
*p
);
374 void brw_land_fwd_jump(struct brw_compile
*p
, int jmp_insn_idx
);
376 brw_inst
*brw_JMPI(struct brw_compile
*p
, struct brw_reg index
,
377 unsigned predicate_control
);
379 void brw_NOP(struct brw_compile
*p
);
381 /* Special case: there is never a destination, execution size will be
384 void brw_CMP(struct brw_compile
*p
,
386 unsigned conditional
,
388 struct brw_reg src1
);
391 brw_untyped_atomic(struct brw_compile
*p
,
393 struct brw_reg payload
,
395 unsigned bind_table_index
,
397 unsigned response_length
);
400 brw_untyped_surface_read(struct brw_compile
*p
,
403 unsigned bind_table_index
,
405 unsigned response_length
);
408 brw_pixel_interpolator_query(struct brw_compile
*p
,
415 unsigned response_length
);
417 /***********************************************************************
421 void brw_copy_indirect_to_indirect(struct brw_compile
*p
,
422 struct brw_indirect dst_ptr
,
423 struct brw_indirect src_ptr
,
426 void brw_copy_from_indirect(struct brw_compile
*p
,
428 struct brw_indirect ptr
,
431 void brw_copy4(struct brw_compile
*p
,
436 void brw_copy8(struct brw_compile
*p
,
441 void brw_math_invert( struct brw_compile
*p
,
445 void brw_set_src1(struct brw_compile
*p
, brw_inst
*insn
, struct brw_reg reg
);
447 void brw_set_uip_jip(struct brw_compile
*p
);
449 enum brw_conditional_mod
brw_negate_cmod(uint32_t cmod
);
450 enum brw_conditional_mod
brw_swap_cmod(uint32_t cmod
);
452 /* brw_eu_compact.c */
453 void brw_init_compaction_tables(struct brw_context
*brw
);
454 void brw_compact_instructions(struct brw_compile
*p
, int start_offset
,
455 int num_annotations
, struct annotation
*annotation
);
456 void brw_uncompact_instruction(struct brw_context
*brw
, brw_inst
*dst
,
457 brw_compact_inst
*src
);
458 bool brw_try_compact_instruction(struct brw_context
*brw
, brw_compact_inst
*dst
,
461 void brw_debug_compact_uncompact(struct brw_context
*brw
, brw_inst
*orig
,
462 brw_inst
*uncompacted
);
465 next_offset(const struct brw_context
*brw
, void *store
, int offset
)
467 brw_inst
*insn
= (brw_inst
*)((char *)store
+ offset
);
469 if (brw_inst_cmpt_control(brw
, insn
))