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/*
* Copyright 2012 Vadim Girlin <vadimgirlin@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Vadim Girlin
*/
#include "r600_pipe.h"
#include "r600_isa.h"
int r600_isa_init(struct r600_context *ctx, struct r600_isa *isa) {
unsigned i;
assert(ctx->chip_class >= R600 && ctx->chip_class <= CAYMAN);
isa->hw_class = ctx->chip_class - R600;
/* reverse lookup maps are required for bytecode parsing */
isa->alu_op2_map = calloc(256, sizeof(unsigned));
if (!isa->alu_op2_map)
return -1;
isa->alu_op3_map = calloc(256, sizeof(unsigned));
if (!isa->alu_op3_map)
return -1;
isa->fetch_map = calloc(256, sizeof(unsigned));
if (!isa->fetch_map)
return -1;
isa->cf_map = calloc(256, sizeof(unsigned));
if (!isa->cf_map)
return -1;
for (i = 0; i < TABLE_SIZE(alu_op_table); ++i) {
const struct alu_op_info *op = &alu_op_table[i];
unsigned opc;
if (op->flags & AF_LDS || op->slots[isa->hw_class] == 0)
continue;
opc = op->opcode[isa->hw_class >> 1];
assert(opc != -1);
if (op->src_count == 3)
isa->alu_op3_map[opc] = i + 1;
else
isa->alu_op2_map[opc] = i + 1;
}
for (i = 0; i < TABLE_SIZE(fetch_op_table); ++i) {
const struct fetch_op_info *op = &fetch_op_table[i];
unsigned opc = op->opcode[isa->hw_class];
if ((op->flags & FF_GDS) || ((opc & 0xFF) != opc))
continue; /* ignore GDS ops and INST_MOD versions for now */
isa->fetch_map[opc] = i + 1;
}
for (i = 0; i < TABLE_SIZE(cf_op_table); ++i) {
const struct cf_op_info *op = &cf_op_table[i];
unsigned opc = op->opcode[isa->hw_class];
if (opc == -1)
continue;
/* using offset for CF_ALU_xxx opcodes because they overlap with other
* CF opcodes (they use different encoding in hw) */
if (op->flags & CF_ALU)
opc += 0x80;
isa->cf_map[opc] = i + 1;
}
return 0;
}
int r600_isa_destroy(struct r600_isa *isa) {
if (!isa)
return 0;
if (isa->alu_op2_map)
free(isa->alu_op2_map);
if (isa->alu_op3_map)
free(isa->alu_op3_map);
if (isa->fetch_map)
free(isa->fetch_map);
if (isa->cf_map)
free(isa->cf_map);
free(isa);
return 0;
}
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