5 * Copyright (c) 2013 Connor Abbott (connor@abbott.cx)
6 * Copyright (c) 2018 Alyssa Rosenzweig (alyssa@rosenzweig.io)
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
34 midgard_word_type_alu
,
35 midgard_word_type_load_store
,
36 midgard_word_type_texture
,
37 midgard_word_type_unknown
53 midgard_alu_op_fadd
= 0x10,
54 midgard_alu_op_fmul
= 0x14,
55 midgard_alu_op_fmin
= 0x28,
56 midgard_alu_op_fmax
= 0x2C,
57 midgard_alu_op_fmov
= 0x30,
58 midgard_alu_op_ffloor
= 0x36,
59 midgard_alu_op_fceil
= 0x37,
60 midgard_alu_op_fdot3
= 0x3C,
61 midgard_alu_op_fdot3r
= 0x3D,
62 midgard_alu_op_fdot4
= 0x3E,
63 midgard_alu_op_freduce
= 0x3F,
64 midgard_alu_op_iadd
= 0x40,
65 midgard_alu_op_ishladd
= 0x41,
66 midgard_alu_op_isub
= 0x46,
67 midgard_alu_op_imul
= 0x58,
68 midgard_alu_op_imin
= 0x60,
69 midgard_alu_op_imax
= 0x62,
70 midgard_alu_op_iasr
= 0x68,
71 midgard_alu_op_ilsr
= 0x69,
72 midgard_alu_op_ishl
= 0x6E,
73 midgard_alu_op_iand
= 0x70,
74 midgard_alu_op_ior
= 0x71,
75 midgard_alu_op_inot
= 0x72,
76 midgard_alu_op_iandnot
= 0x74, /* (a, b) -> a & ~b, used for not/b2f */
77 midgard_alu_op_ixor
= 0x76,
78 midgard_alu_op_imov
= 0x7B,
79 midgard_alu_op_feq
= 0x80,
80 midgard_alu_op_fne
= 0x81,
81 midgard_alu_op_flt
= 0x82,
82 midgard_alu_op_fle
= 0x83,
83 midgard_alu_op_fball_eq
= 0x88,
84 midgard_alu_op_bball_eq
= 0x89,
85 midgard_alu_op_bbany_neq
= 0x90, /* used for bvec4(1) */
86 midgard_alu_op_fbany_neq
= 0x91, /* bvec4(0) also */
87 midgard_alu_op_f2i
= 0x99,
88 midgard_alu_op_f2u8
= 0x9C,
89 midgard_alu_op_f2u
= 0x9D,
90 midgard_alu_op_ieq
= 0xA0,
91 midgard_alu_op_ine
= 0xA1,
92 midgard_alu_op_ilt
= 0xA4,
93 midgard_alu_op_ile
= 0xA5,
94 midgard_alu_op_iball_eq
= 0xA8,
95 midgard_alu_op_ball
= 0xA9,
96 midgard_alu_op_ibany_neq
= 0xB1,
97 midgard_alu_op_i2f
= 0xB8,
98 midgard_alu_op_u2f
= 0xBC,
99 midgard_alu_op_icsel
= 0xC1,
100 midgard_alu_op_fcsel
= 0xC5,
101 midgard_alu_op_fatan_pt2
= 0xE8,
102 midgard_alu_op_frcp
= 0xF0,
103 midgard_alu_op_frsqrt
= 0xF2,
104 midgard_alu_op_fsqrt
= 0xF3,
105 midgard_alu_op_fexp2
= 0xF4,
106 midgard_alu_op_flog2
= 0xF5,
107 midgard_alu_op_fsin
= 0xF6,
108 midgard_alu_op_fcos
= 0xF7,
109 midgard_alu_op_fatan2_pt1
= 0xF9,
113 midgard_outmod_none
= 0,
114 midgard_outmod_pos
= 1,
115 midgard_outmod_int
= 2,
116 midgard_outmod_sat
= 3
120 midgard_reg_mode_quarter
= 0,
121 midgard_reg_mode_half
= 1,
122 midgard_reg_mode_full
= 2,
123 midgard_reg_mode_double
= 3 /* TODO: verify */
127 midgard_dest_override_lower
= 0,
128 midgard_dest_override_upper
= 1,
129 midgard_dest_override_none
= 2
130 } midgard_dest_override
;
133 __attribute__((__packed__
))
138 /* replicate lower half if dest = half, or low/high half selection if
142 bool rep_high
: 1; /* unused if dest = full */
143 bool half
: 1; /* only matters if dest = full */
144 unsigned swizzle
: 8;
146 midgard_vector_alu_src
;
149 __attribute__((__packed__
))
151 midgard_alu_op op
: 8;
152 midgard_reg_mode reg_mode
: 2;
155 midgard_dest_override dest_override
: 2;
156 midgard_outmod outmod
: 2;
162 __attribute__((__packed__
))
166 bool full
: 1; /* 0 = half, 1 = full */
167 unsigned component
: 3;
169 midgard_scalar_alu_src
;
172 __attribute__((__packed__
))
174 midgard_alu_op op
: 8;
177 unsigned unknown
: 1;
178 midgard_outmod outmod
: 2;
179 bool output_full
: 1;
180 unsigned output_component
: 3;
185 __attribute__((__packed__
))
187 unsigned src1_reg
: 5;
188 unsigned src2_reg
: 5;
189 unsigned out_reg
: 5;
195 midgard_jmp_writeout_op_branch_uncond
= 1,
196 midgard_jmp_writeout_op_branch_cond
= 2,
197 midgard_jmp_writeout_op_discard
= 4,
198 midgard_jmp_writeout_op_writeout
= 7,
199 } midgard_jmp_writeout_op
;
202 midgard_condition_write0
= 0,
203 midgard_condition_false
= 1,
204 midgard_condition_true
= 2,
205 midgard_condition_always
= 3, /* Special for writeout/uncond discard */
209 __attribute__((__packed__
))
211 midgard_jmp_writeout_op op
: 3; /* == branch_uncond */
212 unsigned dest_tag
: 4; /* tag of branch destination */
213 unsigned unknown
: 2;
216 midgard_branch_uncond
;
219 __attribute__((__packed__
))
221 midgard_jmp_writeout_op op
: 3; /* == branch_cond */
222 unsigned dest_tag
: 4; /* tag of branch destination */
224 midgard_condition cond
: 2;
229 __attribute__((__packed__
))
231 midgard_jmp_writeout_op op
: 3; /* == branch_cond */
232 unsigned dest_tag
: 4; /* tag of branch destination */
233 unsigned unknown
: 2;
238 midgard_branch_extended
;
241 __attribute__((__packed__
))
243 midgard_jmp_writeout_op op
: 3; /* == writeout */
244 unsigned unknown
: 13;
253 midgard_op_ld_st_noop
= 0x03,
254 midgard_op_load_attr_16
= 0x95,
255 midgard_op_load_attr_32
= 0x94,
256 midgard_op_load_vary_16
= 0x99,
257 midgard_op_load_vary_32
= 0x98,
258 midgard_op_load_color_buffer_16
= 0x9D,
259 midgard_op_load_color_buffer_8
= 0xBA,
260 midgard_op_load_uniform_16
= 0xAC,
261 midgard_op_load_uniform_32
= 0xB0,
262 midgard_op_store_vary_16
= 0xD5,
263 midgard_op_store_vary_32
= 0xD4
264 } midgard_load_store_op
;
267 midgard_interp_centroid
= 1,
268 midgard_interp_default
= 2
269 } midgard_interpolation
;
272 __attribute__((__packed__
))
274 unsigned zero1
: 4; /* Always zero */
276 /* Varying qualifiers, zero if not a varying */
278 unsigned is_varying
: 1; /* Always one for varying, but maybe something else? */
279 midgard_interpolation interpolation
: 2;
281 unsigned zero2
: 2; /* Always zero */
283 midgard_varying_parameter
;
286 __attribute__((__packed__
))
288 midgard_load_store_op op
: 8;
291 unsigned swizzle
: 8;
292 unsigned unknown
: 16;
294 unsigned varying_parameters
: 10;
296 unsigned address
: 9;
298 midgard_load_store_word
;
301 __attribute__((__packed__
))
304 unsigned next_type
: 4;
310 /* Texture pipeline results are in r28-r29 */
311 #define REG_TEX_BASE 28
313 /* Texture opcodes... maybe? */
314 #define TEXTURE_OP_NORMAL 0x11
315 #define TEXTURE_OP_TEXEL_FETCH 0x14
317 /* Texture format types, found in format */
318 #define TEXTURE_CUBE 0x00
319 #define TEXTURE_2D 0x02
320 #define TEXTURE_3D 0x03
323 __attribute__((__packed__
))
326 unsigned next_type
: 4;
330 unsigned unknown3
: 1;
332 /* A little obscure, but last is set for the last texture operation in
333 * a shader. cont appears to just be last's opposite (?). Yeah, I know,
334 * kind of funky.. BiOpen thinks it could do with memory hinting, or
341 unsigned has_offset
: 1;
343 /* Like in Bifrost */
346 unsigned in_reg_select
: 1;
347 unsigned in_reg_upper
: 1;
349 unsigned in_reg_swizzle_left
: 2;
350 unsigned in_reg_swizzle_right
: 2;
352 unsigned unknown1
: 2;
354 unsigned unknown8
: 4;
356 unsigned out_full
: 1;
358 /* Always 1 afaict... */
359 unsigned unknown7
: 2;
361 unsigned out_reg_select
: 1;
362 unsigned out_upper
: 1;
366 unsigned unknown2
: 2;
368 unsigned swizzle
: 8;
369 unsigned unknown4
: 8;
371 unsigned unknownA
: 4;
373 unsigned offset_unknown1
: 1;
374 unsigned offset_reg_select
: 1;
375 unsigned offset_reg_upper
: 1;
376 unsigned offset_unknown4
: 1;
377 unsigned offset_unknown5
: 1;
378 unsigned offset_unknown6
: 1;
379 unsigned offset_unknown7
: 1;
380 unsigned offset_unknown8
: 1;
381 unsigned offset_unknown9
: 1;
383 unsigned unknownB
: 3;
385 /* Texture bias or LOD, depending on whether it is executed in a
386 * fragment/vertex shader respectively. Compute as int(2^8 * biasf).
388 * For texel fetch, this is the LOD as is. */
391 unsigned unknown9
: 8;
393 unsigned texture_handle
: 16;
394 unsigned sampler_handle
: 16;
396 midgard_texture_word
;
398 /* Opcode name table */
400 static char *alu_opcode_names
[256] = {
401 [midgard_alu_op_fadd
] = "fadd",
402 [midgard_alu_op_fmul
] = "fmul",
403 [midgard_alu_op_fmin
] = "fmin",
404 [midgard_alu_op_fmax
] = "fmax",
405 [midgard_alu_op_fmov
] = "fmov",
406 [midgard_alu_op_ffloor
] = "ffloor",
407 [midgard_alu_op_fceil
] = "fceil",
408 [midgard_alu_op_fdot3
] = "fdot3",
409 [midgard_alu_op_fdot3r
] = "fdot3r",
410 [midgard_alu_op_fdot4
] = "fdot4",
411 [midgard_alu_op_freduce
] = "freduce",
412 [midgard_alu_op_imin
] = "imin",
413 [midgard_alu_op_imax
] = "imax",
414 [midgard_alu_op_ishl
] = "ishl",
415 [midgard_alu_op_iasr
] = "iasr",
416 [midgard_alu_op_ilsr
] = "ilsr",
417 [midgard_alu_op_iadd
] = "iadd",
418 [midgard_alu_op_ishladd
] = "ishladd",
419 [midgard_alu_op_isub
] = "isub",
420 [midgard_alu_op_imul
] = "imul",
421 [midgard_alu_op_imov
] = "imov",
422 [midgard_alu_op_iand
] = "iand",
423 [midgard_alu_op_ior
] = "ior",
424 [midgard_alu_op_inot
] = "inot",
425 [midgard_alu_op_iandnot
] = "iandnot",
426 [midgard_alu_op_ixor
] = "ixor",
427 [midgard_alu_op_feq
] = "feq",
428 [midgard_alu_op_fne
] = "fne",
429 [midgard_alu_op_flt
] = "flt",
430 [midgard_alu_op_fle
] = "fle",
431 [midgard_alu_op_fball_eq
] = "fball_eq",
432 [midgard_alu_op_fbany_neq
] = "fbany_neq",
433 [midgard_alu_op_bball_eq
] = "bball_eq",
434 [midgard_alu_op_bbany_neq
] = "bbany_neq",
435 [midgard_alu_op_f2i
] = "f2i",
436 [midgard_alu_op_f2u
] = "f2u",
437 [midgard_alu_op_f2u8
] = "f2u8",
438 [midgard_alu_op_ieq
] = "ieq",
439 [midgard_alu_op_ine
] = "ine",
440 [midgard_alu_op_ilt
] = "ilt",
441 [midgard_alu_op_ile
] = "ile",
442 [midgard_alu_op_iball_eq
] = "iball_eq",
443 [midgard_alu_op_ball
] = "ball",
444 [midgard_alu_op_ibany_neq
] = "ibany_neq",
445 [midgard_alu_op_i2f
] = "i2f",
446 [midgard_alu_op_u2f
] = "u2f",
447 [midgard_alu_op_icsel
] = "icsel",
448 [midgard_alu_op_fcsel
] = "fcsel",
449 [midgard_alu_op_fatan_pt2
] = "fatan_pt2",
450 [midgard_alu_op_frcp
] = "frcp",
451 [midgard_alu_op_frsqrt
] = "frsqrt",
452 [midgard_alu_op_fsqrt
] = "fsqrt",
453 [midgard_alu_op_fexp2
] = "fexp2",
454 [midgard_alu_op_flog2
] = "flog2",
455 [midgard_alu_op_fsin
] = "fsin",
456 [midgard_alu_op_fcos
] = "fcos",
457 [midgard_alu_op_fatan2_pt1
] = "fatan2_pt1"
460 static char *load_store_opcode_names
[256] = {
461 [midgard_op_load_attr_16
] = "ld_attr_16",
462 [midgard_op_load_attr_32
] = "ld_attr_32",
463 [midgard_op_load_vary_16
] = "ld_vary_16",
464 [midgard_op_load_vary_32
] = "ld_vary_32",
465 [midgard_op_load_uniform_16
] = "ld_uniform_16",
466 [midgard_op_load_uniform_32
] = "ld_uniform_32",
467 [midgard_op_load_color_buffer_8
] = "ld_color_buffer_8",
468 [midgard_op_load_color_buffer_16
] = "ld_color_buffer_16",
469 [midgard_op_store_vary_16
] = "st_vary_16",
470 [midgard_op_store_vary_32
] = "st_vary_32"