mesa/src/imagination/rogue/rogue_encode.c

852 lines
24 KiB
C

/*
* Copyright © 2022 Imagination Technologies Ltd.
*
* 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 the rights
* to use, copy, modify, merge, publish, distribute, sublicense, 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 NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "hwdef/rogue_hw_defs.h"
#include "rogue_encode.h"
#include "rogue_encoders.h"
#include "rogue_operand.h"
#include "rogue_shader.h"
#include "rogue_util.h"
#include "util/bitscan.h"
#include "util/macros.h"
static size_t rogue_encode_reg_bank(const struct rogue_operand *operand)
{
switch (operand->type) {
case ROGUE_OPERAND_TYPE_REG_INTERNAL:
case ROGUE_OPERAND_TYPE_REG_PIXEL_OUT:
case ROGUE_OPERAND_TYPE_REG_CONST:
return 0;
case ROGUE_OPERAND_TYPE_REG_TEMP:
return 1;
case ROGUE_OPERAND_TYPE_REG_VERTEX_IN:
return 2;
case ROGUE_OPERAND_TYPE_REG_COEFF:
return 3;
case ROGUE_OPERAND_TYPE_REG_SHARED:
return 4;
default:
break;
}
unreachable("Unimplemented register bank.");
}
/**
* \brief Field mapping type.
*/
enum rogue_map_type {
ROGUE_MAP_TYPE_INSTR_FLAG = 0,
ROGUE_MAP_TYPE_OPERAND_FLAG,
ROGUE_MAP_TYPE_OPERAND,
ROGUE_MAP_TYPE_COUNT,
};
/**
* \brief Field mapping rule description.
*/
struct rogue_field_mapping {
/* Type of mapping being performed. */
enum rogue_map_type type;
/* Index of the source operand/flag being mapped. */
size_t index;
/* List of ranges to perform mapping. */
struct rogue_rangelist rangelist;
/* Function used to encode the input into the value to be mapped. */
field_encoder_t encoder_fn;
};
/**
* \brief Instruction encoding rule description.
*/
struct rogue_instr_encoding {
/* Number of bytes making up the base mask. */
size_t num_bytes;
/* Base mask bytes. */
uint8_t *bytes;
/* Number of field mappings for this instruction. */
size_t num_mappings;
/* Field mappings. */
struct rogue_field_mapping *mappings;
};
static const
struct rogue_instr_encoding instr_encodings[ROGUE_OP_COUNT] = {
[ROGUE_OP_NOP] = {
.num_bytes = 8,
.bytes = (uint8_t []) { 0x04, 0x80, 0x6e, 0x00, 0xf2, 0xff, 0xff, 0xff },
},
[ROGUE_OP_END_FRAG] = {
.num_bytes = 8,
.bytes = (uint8_t []) { 0x04, 0x80, 0xee, 0x00, 0xf2, 0xff, 0xff, 0xff },
},
[ROGUE_OP_END_VERT] = {
.num_bytes = 8,
.bytes = (uint8_t []) { 0x44, 0xa0, 0x80, 0x05, 0x00, 0x00, 0x00, 0xff },
},
[ROGUE_OP_WDF] = {
.num_bytes = 8,
.bytes = (uint8_t []) { 0x04, 0x80, 0x6a, 0xff, 0xf2, 0xff, 0xff, 0xff },
.num_mappings = 1,
.mappings = (struct rogue_field_mapping []) {
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 47, .num = 1, },
},
},
.encoder_fn = &rogue_encoder_drc,
},
},
},
[ROGUE_OP_PIX_ITER_W] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x48, 0x20, 0xb0, 0x01, 0x80, 0x40, 0x80, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xff, 0xf1, 0xff },
.num_mappings = 6,
.mappings = (struct rogue_field_mapping []) {
/* Instruction flag mappings. */
{
.type = ROGUE_MAP_TYPE_INSTR_FLAG,
.index = ROGUE_INSTR_FLAG_SAT,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 100, .num = 1, },
},
},
.encoder_fn = NULL,
},
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 43, .num = 2, }, /* SB3(2..1) */
{ .start = 54, .num = 1, }, /* SB3(0) */
{ .start = 34, .num = 3, }, /* S3(10..8) */
{ .start = 41, .num = 2, }, /* S3(7..6) */
{ .start = 53, .num = 6, }, /* S3(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 59, .num = 1, },
},
},
.encoder_fn = &rogue_encoder_drc,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 2,
.rangelist = {
.num_ranges = 6,
.ranges = (struct rogue_bitrange []) {
{ .start = 59, .num = 1, }, /* SB0(2) */
{ .start = 76, .num = 1, }, /* SB0(1) */
{ .start = 94, .num = 1, }, /* SB0(0) */
{ .start = 57, .num = 1, }, /* S0(7) */
{ .start = 74, .num = 1, }, /* S0(6) */
{ .start = 93, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_8,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 3,
.rangelist = {
.num_ranges = 4,
.ranges = (struct rogue_bitrange []) {
{ .start = 63, .num = 1, }, /* SB2(2) */
{ .start = 71, .num = 2, }, /* SB2(1..0) */
{ .start = 62, .num = 2, }, /* S2(7..6) */
{ .start = 69, .num = 6, }, /* S2(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_8,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 4,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 99, .num = 4, },
},
},
.encoder_fn = &rogue_encoder_ls_1_16,
},
},
},
[ROGUE_OP_MAX] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x68, 0x42, 0xd0, 0x3c, 0xfa, 0x10, 0x87, 0x80, 0xc0, 0x80, 0x10, 0x00, 0x32, 0x80, 0x00, 0xff },
.num_mappings = 3,
.mappings = (struct rogue_field_mapping []) {
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 11, .num = 2, }, /* DBn(2..1) */
{ .start = 22, .num = 1, }, /* DBn(0) */
{ .start = 14, .num = 3, }, /* Dn(10..8) */
{ .start = 9, .num = 2, }, /* Dn(7..6) */
{ .start = 21, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 7,
.ranges = (struct rogue_bitrange []) {
{ .start = 43, .num = 1, }, /* SB0(2) */
{ .start = 52, .num = 1, }, /* SB0(1) */
{ .start = 70, .num = 1, }, /* SB0(0) */
{ .start = 47, .num = 3, }, /* S0(10..8) */
{ .start = 41, .num = 1, }, /* S0(7) */
{ .start = 50, .num = 1, }, /* S0(6) */
{ .start = 69, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 2,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 51, .num = 1, }, /* SB1(1) */
{ .start = 61, .num = 1, }, /* SB1(0) */
{ .start = 40, .num = 1, }, /* S1(7) */
{ .start = 49, .num = 2, }, /* S1(6..5) */
{ .start = 60, .num = 5, }, /* S1(4..0) */
},
},
.encoder_fn = &rogue_encoder_reg_2_8,
},
},
},
[ROGUE_OP_MIN] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x68, 0x42, 0xd0, 0x3c, 0xf0, 0x11, 0x87, 0x80, 0xc0, 0x80, 0x10, 0x00, 0x32, 0x80, 0x00, 0xff },
.num_mappings = 3,
.mappings = (struct rogue_field_mapping []) {
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 11, .num = 2, }, /* DBn(2..1) */
{ .start = 22, .num = 1, }, /* DBn(0) */
{ .start = 14, .num = 3, }, /* Dn(10..8) */
{ .start = 9, .num = 2, }, /* Dn(7..6) */
{ .start = 21, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 7,
.ranges = (struct rogue_bitrange []) {
{ .start = 43, .num = 1, }, /* SB0(2) */
{ .start = 52, .num = 1, }, /* SB0(1) */
{ .start = 70, .num = 1, }, /* SB0(0) */
{ .start = 47, .num = 3, }, /* S0(10..8) */
{ .start = 41, .num = 1, }, /* S0(7) */
{ .start = 50, .num = 1, }, /* S0(6) */
{ .start = 69, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 2,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 51, .num = 1, }, /* SB1(1) */
{ .start = 61, .num = 1, }, /* SB1(0) */
{ .start = 40, .num = 1, }, /* S1(7) */
{ .start = 49, .num = 2, }, /* S1(6..5) */
{ .start = 60, .num = 5, }, /* S1(4..0) */
},
},
.encoder_fn = &rogue_encoder_reg_2_8,
},
},
},
[ROGUE_OP_PACK_U8888] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x58, 0x92, 0x06, 0x9c, 0x20, 0x80, 0x00, 0x00, 0x00, 0x2c, 0x80, 0x00, 0xf2, 0xff, 0xff, 0xff },
.num_mappings = 2,
.mappings = (struct rogue_field_mapping []) {
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 35, .num = 2, }, /* DBn(2..1) */
{ .start = 46, .num = 1, }, /* DBn(0) */
{ .start = 38, .num = 3, }, /* Dn(10..8) */
{ .start = 33, .num = 2, }, /* Dn(7..6) */
{ .start = 45, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 75, .num = 2, }, /* SB0(2..1) */
{ .start = 86, .num = 1, }, /* SB0(0) */
{ .start = 66, .num = 3, }, /* S0(10..8) */
{ .start = 73, .num = 2, }, /* S0(7..6) */
{ .start = 85, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
},
},
[ROGUE_OP_MOV] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x48, 0x42, 0xd0, 0x3f, 0x87, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0xf2, 0xff, 0xff, 0xff },
.num_mappings = 3,
.mappings = (struct rogue_field_mapping []) {
/* Instruction flag mappings. */
{
.type = ROGUE_MAP_TYPE_INSTR_FLAG,
.index = ROGUE_INSTR_FLAG_OLCHK,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 115, .num = 1, },
},
},
.encoder_fn = NULL,
},
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 35, .num = 2, }, /* DBn(2..1) */
{ .start = 46, .num = 1, }, /* DBn(0) */
{ .start = 38, .num = 3, }, /* Dn(10..8) */
{ .start = 33, .num = 2, }, /* Dn(7..6) */
{ .start = 45, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 75, .num = 2, }, /* SB0(2..1) */
{ .start = 86, .num = 1, }, /* SB0(0) */
{ .start = 66, .num = 3, }, /* S0(10..8) */
{ .start = 73, .num = 2, }, /* S0(7..6) */
{ .start = 85, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
},
},
[ROGUE_OP_MOV_IMM] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x88, 0x92, 0x40, 0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0xf2, 0xff, 0xff, 0xff },
.num_mappings = 2,
.mappings = (struct rogue_field_mapping []) {
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 35, .num = 2, }, /* DBn(2..1) */
{ .start = 46, .num = 1, }, /* DBn(0) */
{ .start = 38, .num = 3, }, /* Dn(10..8) */
{ .start = 33, .num = 2, }, /* Dn(7..6) */
{ .start = 45, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 4,
.ranges = (struct rogue_bitrange []) {
{ .start = 71, .num = 8, }, /* imm(31:24) */
{ .start = 79, .num = 8, }, /* imm(23:16) */
{ .start = 87, .num = 8, }, /* imm(15:8) */
{ .start = 95, .num = 8, }, /* imm(7:0) */
},
},
.encoder_fn = &rogue_encoder_imm,
},
},
},
[ROGUE_OP_FMA] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x28, 0x02, 0xd0, 0x00, 0x80, 0x40, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0xff, 0xf1, 0xff },
.num_mappings = 6,
.mappings = (struct rogue_field_mapping []) {
/* Instruction flag mappings. */
{
.type = ROGUE_MAP_TYPE_INSTR_FLAG,
.index = ROGUE_INSTR_FLAG_SAT,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 104, .num = 1, },
},
},
.encoder_fn = NULL,
},
{
.type = ROGUE_MAP_TYPE_INSTR_FLAG,
.index = ROGUE_INSTR_FLAG_LP,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 100, .num = 1, },
},
},
.encoder_fn = NULL,
},
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 27, .num = 2, }, /* DBn(2..1) */
{ .start = 38, .num = 1, }, /* DBn(0) */
{ .start = 30, .num = 3, }, /* Dn(10..8) */
{ .start = 25, .num = 2, }, /* Dn(7..6) */
{ .start = 37, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 6,
.ranges = (struct rogue_bitrange []) {
{ .start = 59, .num = 1, }, /* SB0(2) */
{ .start = 76, .num = 1, }, /* SB0(1) */
{ .start = 94, .num = 1, }, /* SB0(0) */
{ .start = 57, .num = 1, }, /* S0(7) */
{ .start = 74, .num = 1, }, /* S0(6) */
{ .start = 93, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_8,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 2,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 75, .num = 1, }, /* SB1(1) */
{ .start = 85, .num = 1, }, /* SB1(0) */
{ .start = 56, .num = 1, }, /* S1(7) */
{ .start = 73, .num = 2, }, /* S1(6..5) */
{ .start = 84, .num = 5, }, /* S1(4..0) */
},
},
.encoder_fn = &rogue_encoder_reg_2_8,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 3,
.rangelist = {
.num_ranges = 4,
.ranges = (struct rogue_bitrange []) {
{ .start = 63, .num = 1, }, /* SB2(2) */
{ .start = 71, .num = 2, }, /* SB2(1..0) */
{ .start = 62, .num = 2, }, /* S2(7..6) */
{ .start = 69, .num = 6, }, /* S2(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_8,
},
},
},
[ROGUE_OP_MUL] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x28, 0x02, 0x40, 0x80, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0xff, 0xf2, 0xff, 0xff, 0xff },
.num_mappings = 5,
.mappings = (struct rogue_field_mapping []) {
/* Instruction flag mappings. */
{
.type = ROGUE_MAP_TYPE_INSTR_FLAG,
.index = ROGUE_INSTR_FLAG_SAT,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 108, .num = 1, },
},
},
.encoder_fn = NULL,
},
{
.type = ROGUE_MAP_TYPE_INSTR_FLAG,
.index = ROGUE_INSTR_FLAG_LP,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 109, .num = 1, },
},
},
.encoder_fn = NULL,
},
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 43, .num = 2, }, /* DBn(2..1) */
{ .start = 54, .num = 1, }, /* DBn(0) */
{ .start = 46, .num = 3, }, /* Dn(10..8) */
{ .start = 41, .num = 2, }, /* Dn(7..6) */
{ .start = 53, .num = 6, }, /* Dn(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 7,
.ranges = (struct rogue_bitrange []) {
{ .start = 75, .num = 1, }, /* SB0(2) */
{ .start = 84, .num = 1, }, /* SB0(1) */
{ .start = 102, .num = 1, }, /* SB0(0) */
{ .start = 79, .num = 3, }, /* S0(10..8) */
{ .start = 73, .num = 1, }, /* S0(7) */
{ .start = 82, .num = 1, }, /* S0(6) */
{ .start = 101, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 2,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 83, .num = 1, }, /* SB1(1) */
{ .start = 93, .num = 1, }, /* SB1(0) */
{ .start = 72, .num = 1, }, /* S1(7) */
{ .start = 81, .num = 2, }, /* S1(6..5) */
{ .start = 92, .num = 5, }, /* S1(4..0) */
},
},
.encoder_fn = &rogue_encoder_reg_2_8,
},
},
},
[ROGUE_OP_VTXOUT] = {
.num_bytes = 16,
.bytes = (uint8_t []) { 0x48, 0x20, 0x08, 0x00, 0x80, 0x00, 0x00, 0x00, 0x30, 0xff, 0xf3, 0xff, 0xff, 0xff, 0xff, 0xff },
.num_mappings = 2,
.mappings = (struct rogue_field_mapping []) {
/* Operand mappings. */
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 0,
.rangelist = {
.num_ranges = 1,
.ranges = (struct rogue_bitrange []) {
{ .start = 103, .num = 8, }, /* Immediate address. */
},
},
.encoder_fn = &rogue_encoder_imm,
},
{
.type = ROGUE_MAP_TYPE_OPERAND,
.index = 1,
.rangelist = {
.num_ranges = 5,
.ranges = (struct rogue_bitrange []) {
{ .start = 83, .num = 2, }, /* SB0(2..1) */
{ .start = 94, .num = 1, }, /* SB0(0) */
{ .start = 74, .num = 3, }, /* S0(10..8) */
{ .start = 81, .num = 2, }, /* S0(7..6) */
{ .start = 93, .num = 6, }, /* S0(5..0) */
},
},
.encoder_fn = &rogue_encoder_reg_3_11,
},
},
},
};
/**
* \brief Applies a boolean flag encoding onto an instruction mask.
*
* \param[in] set Whether to set/unset the flag.
* \param[in] mapping The field mapping to apply.
* \param[in] instr_size The size of the instruction mask in bytes.
* \param[in] instr_bytes The instruction mask.
* \return true if encoding was successful.
*/
static bool rogue_encode_flag(bool set,
const struct rogue_field_mapping *mapping,
size_t instr_size,
uint8_t instr_bytes[instr_size])
{
return rogue_distribute_value((uint64_t)set,
&mapping->rangelist,
instr_size,
instr_bytes);
}
/**
* \brief Applies an operand encoding onto an instruction mask.
*
* \param[in] operand The operand to apply.
* \param[in] mapping The field mapping to apply.
* \param[in] instr_size The size of the instruction mask in bytes.
* \param[in] instr_bytes The instruction mask.
* \return true if encoding was successful.
*/
static bool rogue_encode_operand(const struct rogue_operand *operand,
const struct rogue_field_mapping *mapping,
size_t instr_size,
uint8_t instr_bytes[instr_size])
{
uint64_t value = 0U;
switch (operand->type) {
case ROGUE_OPERAND_TYPE_REG_PIXEL_OUT:
CHECKF(
mapping->encoder_fn(&value,
2,
rogue_encode_reg_bank(operand),
operand->reg.number + ROGUE_PIXEL_OUT_REG_OFFSET),
"Failed to encode pixel output register operand.");
break;
case ROGUE_OPERAND_TYPE_REG_INTERNAL:
CHECKF(
mapping->encoder_fn(&value,
2,
rogue_encode_reg_bank(operand),
operand->reg.number + ROGUE_INTERNAL_REG_OFFSET),
"Failed to encode internal register operand.");
break;
case ROGUE_OPERAND_TYPE_REG_TEMP:
case ROGUE_OPERAND_TYPE_REG_COEFF:
case ROGUE_OPERAND_TYPE_REG_CONST:
case ROGUE_OPERAND_TYPE_REG_SHARED:
case ROGUE_OPERAND_TYPE_REG_VERTEX_IN:
CHECKF(mapping->encoder_fn(&value,
2,
rogue_encode_reg_bank(operand),
operand->reg.number),
"Failed to encode register operand.");
break;
case ROGUE_OPERAND_TYPE_IMMEDIATE:
CHECKF(mapping->encoder_fn(&value, 1, operand->immediate.value),
"Failed to encode immediate operand.");
break;
case ROGUE_OPERAND_TYPE_DRC:
CHECKF(mapping->encoder_fn(&value, 1, (uint64_t)operand->drc.number),
"Failed to encode DRC operand.");
break;
default:
return false;
}
CHECKF(rogue_distribute_value(value,
&mapping->rangelist,
instr_size,
instr_bytes),
"Failed to distribute value.");
return true;
}
/**
* \brief Applies operand and flag encodings to the base instruction bytes, then
* writes the result to file pointer "fp".
*
* \param[in] instr The instruction to be encoded.
* \param[in] fp The file pointer.
* \return true if encoding was successful.
*/
bool rogue_encode_instr(const struct rogue_instr *instr, FILE *fp)
{
const struct rogue_instr_encoding *instr_encoding;
size_t instr_size;
uint8_t instr_bytes[ROGUE_MAX_INSTR_BYTES];
ASSERT_OPCODE_RANGE(instr->opcode);
instr_encoding = &instr_encodings[instr->opcode];
/* Set up base instruction bytes. */
instr_size = instr_encoding->num_bytes;
assert(instr_size <= ARRAY_SIZE(instr_bytes));
memcpy(instr_bytes, instr_encoding->bytes, instr_size);
/* Encode the operands and flags. */
for (size_t u = 0U; u < instr_encoding->num_mappings; ++u) {
const struct rogue_field_mapping *mapping = &instr_encoding->mappings[u];
switch (mapping->type) {
case ROGUE_MAP_TYPE_INSTR_FLAG: {
uint64_t flag = rogue_onehot(mapping->index);
CHECKF(rogue_encode_flag(!!(instr->flags & flag),
mapping,
instr_size,
instr_bytes),
"Failed to encode instruction flag.");
break;
}
case ROGUE_MAP_TYPE_OPERAND_FLAG:
return false;
case ROGUE_MAP_TYPE_OPERAND: {
size_t operand_index = mapping->index;
CHECKF(rogue_encode_operand(&instr->operands[operand_index],
mapping,
instr_size,
instr_bytes),
"Failed to encode instruction operand.");
break;
}
default:
return false;
}
}
CHECKF(fwrite(instr_bytes, 1, instr_size, fp) == instr_size,
"Failed to write encoded instruction bytes.");
fflush(fp);
return true;
}
/**
* \brief Encodes each instruction in "shader", writing the output to "fp".
*
* \param[in] shader The shader to be encoded.
* \param[in] fp The file pointer.
* \return true if encoding was successful.
*/
bool rogue_encode_shader(const struct rogue_shader *shader, FILE *fp)
{
long bytes_written;
/* Encode each instruction. */
foreach_instr (instr, &shader->instr_list)
CHECKF(rogue_encode_instr(instr, fp), "Failed to encode instruction.");
/* Pad end of shader if required. */
bytes_written = ftell(fp);
if (bytes_written <= 0)
return false;
/* FIXME: Figure out the define for alignment of 16. */
for (size_t u = 0; u < (bytes_written % 16); ++u)
fputc(0xff, fp);
return true;
}