1 /*
2 * Copyright (C) 2021 Collabora Ltd.
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors (Collabora):
24 * Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
25 */
26
27 #ifndef __VALHALL_COMPILER_H
28 #define __VALHALL_COMPILER_H
29
30 #include "compiler.h"
31 #include "valhall.h"
32
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36
37 bool va_validate_fau(bi_instr *I);
38 void va_validate(FILE *fp, bi_context *ctx);
39 void va_repair_fau(bi_builder *b, bi_instr *I);
40 void va_fuse_add_imm(bi_instr *I);
41 void va_lower_constants(bi_context *ctx, bi_instr *I);
42 void va_lower_isel(bi_instr *I);
43 void va_assign_slots(bi_context *ctx);
44 void va_insert_flow_control_nops(bi_context *ctx);
45 void va_merge_flow(bi_context *ctx);
46 void va_mark_last(bi_context *ctx);
47 uint64_t va_pack_instr(const bi_instr *I);
48
49 static inline unsigned
va_fau_page(enum bir_fau value)50 va_fau_page(enum bir_fau value)
51 {
52 /* Uniform slots of FAU have a 7-bit index. The top 2-bits are the page; the
53 * bottom 5-bits are specified in the source.
54 */
55 if (value & BIR_FAU_UNIFORM) {
56 unsigned slot = value & ~BIR_FAU_UNIFORM;
57 unsigned page = slot >> 5;
58
59 assert(page <= 3);
60 return page;
61 }
62
63 /* Special indices are also paginated */
64 switch (value) {
65 case BIR_FAU_TLS_PTR:
66 case BIR_FAU_WLS_PTR:
67 return 1;
68 case BIR_FAU_LANE_ID:
69 case BIR_FAU_CORE_ID:
70 case BIR_FAU_PROGRAM_COUNTER:
71 return 3;
72 default:
73 return 0;
74 }
75 }
76
77 static inline unsigned
va_select_fau_page(const bi_instr * I)78 va_select_fau_page(const bi_instr *I)
79 {
80 bi_foreach_src(I, s) {
81 if (I->src[s].type == BI_INDEX_FAU)
82 return va_fau_page((enum bir_fau) I->src[s].value);
83 }
84
85 return 0;
86 }
87
88 /** Cycle model for Valhall. Results need to be normalized */
89 struct va_stats {
90 /** Counts per pipe */
91 unsigned fma, cvt, sfu, v, ls, t;
92 };
93
94 void
95 va_count_instr_stats(bi_instr *I, struct va_stats *stats);
96
97 #ifdef __cplusplus
98 } /* extern C */
99 #endif
100
101 #endif
102