r600_isa.c revision 848b8605 
1/*
2 * Copyright 2012 Vadim Girlin <vadimgirlin@gmail.com>
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 *      Vadim Girlin
25 */
26
27#include "r600_pipe.h"
28#include "r600_isa.h"
29
30int r600_isa_init(struct r600_context *ctx, struct r600_isa *isa) {
31	unsigned i;
32
33	assert(ctx->b.chip_class >= R600 && ctx->b.chip_class <= CAYMAN);
34	isa->hw_class = ctx->b.chip_class - R600;
35
36	/* reverse lookup maps are required for bytecode parsing */
37
38	isa->alu_op2_map = calloc(256, sizeof(unsigned));
39	if (!isa->alu_op2_map)
40		return -1;
41	isa->alu_op3_map = calloc(256, sizeof(unsigned));
42	if (!isa->alu_op3_map)
43		return -1;
44	isa->fetch_map = calloc(256, sizeof(unsigned));
45	if (!isa->fetch_map)
46		return -1;
47	isa->cf_map = calloc(256, sizeof(unsigned));
48	if (!isa->cf_map)
49		return -1;
50
51	for (i = 0; i < TABLE_SIZE(alu_op_table); ++i) {
52		const struct alu_op_info *op = &alu_op_table[i];
53		unsigned opc;
54		if (op->flags & AF_LDS || op->slots[isa->hw_class] == 0)
55			continue;
56		opc = op->opcode[isa->hw_class >> 1];
57		assert(opc != -1);
58		if (op->src_count == 3)
59			isa->alu_op3_map[opc] = i + 1;
60		else
61			isa->alu_op2_map[opc] = i + 1;
62	}
63
64	for (i = 0; i < TABLE_SIZE(fetch_op_table); ++i) {
65		const struct fetch_op_info *op = &fetch_op_table[i];
66		unsigned opc = op->opcode[isa->hw_class];
67		if ((op->flags & FF_GDS) || ((opc & 0xFF) != opc))
68			continue; /* ignore GDS ops and INST_MOD versions for now */
69		isa->fetch_map[opc] = i + 1;
70	}
71
72	for (i = 0; i < TABLE_SIZE(cf_op_table); ++i) {
73		const struct cf_op_info *op = &cf_op_table[i];
74		unsigned opc = op->opcode[isa->hw_class];
75		if (opc == -1)
76			continue;
77		/* using offset for CF_ALU_xxx opcodes because they overlap with other
78		 * CF opcodes (they use different encoding in hw) */
79		if (op->flags & CF_ALU)
80			opc += 0x80;
81		isa->cf_map[opc] = i + 1;
82	}
83
84	return 0;
85}
86
87int r600_isa_destroy(struct r600_isa *isa) {
88
89	if (!isa)
90		return 0;
91
92	if (isa->alu_op2_map)
93		free(isa->alu_op2_map);
94	if (isa->alu_op3_map)
95		free(isa->alu_op3_map);
96	if (isa->fetch_map)
97		free(isa->fetch_map);
98	if (isa->cf_map)
99		free(isa->cf_map);
100
101	free(isa);
102	return 0;
103}
104
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107