src/gallium/drivers/r600/sfn/sfn_value.cpp

   1 /* -*- mesa-c++  -*-
   2  *
   3  * Copyright (c) 2018 Collabora LTD
   4  *
   5  * Author: Gert Wollny <gert.wollny@collabora.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * on the rights to use, copy, modify, merge, publish, distribute, sub
  11  * license, and/or sell copies of the Software, and to permit persons to whom
  12  * the Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  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 NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27 #include "sfn_value.h"
  28 #include "util/macros.h"
  29
  30 #include <iostream>
  31 #include <iomanip>
  32 #include <cassert>
  33
  34 namespace r600 {
  35
  36 using std::unique_ptr;
  37 using std::make_shared;
  38
  39 const char *Value::component_names = "xyzw01?_!";
  40
  41 Value::Value():
  42    m_type(gpr),
  43    m_chan(0)
  44 {
  45 }
  46
  47 Value::Value(Type type, uint32_t chan):
  48    m_type(type),
  49    m_chan(chan)
  50 {
  51
  52 }
  53
  54
  55
  56 Value::Value(Type type):
  57    Value(type, 0)
  58 {
  59 }
  60
  61 Value::Type Value::type() const
  62 {
  63    return m_type;
  64 }
  65
  66 void Value::set_chan(uint32_t chan)
  67 {
  68    m_chan = chan;
  69 }
  70
  71 void Value::print(std::ostream& os) const
  72 {
  73    do_print(os);
  74 }
  75
  76 void Value::print(std::ostream& os, const PrintFlags& flags) const
  77 {
  78    if (flags.flags & PrintFlags::has_neg) os << '-';
  79    if (flags.flags & PrintFlags::has_abs) os << '|';
  80    do_print(os, flags);
  81    if (flags.flags & PrintFlags::has_abs) os << '|';
  82 }
  83
  84 void Value::do_print(std::ostream& os, const PrintFlags& flags) const
  85 {
  86    (void)flags;
  87    do_print(os);
  88 }
  89
  90 bool Value::operator < (const Value& lhs) const
  91 {
  92    return sel() < lhs.sel() ||
  93          (sel() == lhs.sel() && chan() < lhs.chan());
  94 }
  95
  96
  97 LiteralValue::LiteralValue(float value, uint32_t chan):
  98    Value(Value::literal, chan)
  99 {
 100    m_value.f=value;
 101 }
 102
 103
 104 LiteralValue::LiteralValue(uint32_t value, uint32_t chan):
 105    Value(Value::literal, chan)
 106 {
 107    m_value.u=value;
 108 }
 109
 110 LiteralValue::LiteralValue(int value, uint32_t chan):
 111    Value(Value::literal, chan)
 112 {
 113    m_value.u=value;
 114 }
 115
 116 uint32_t LiteralValue::sel() const
 117 {
 118    return ALU_SRC_LITERAL;
 119 }
 120
 121 uint32_t LiteralValue::value() const
 122 {
 123    return m_value.u;
 124 }
 125
 126 float LiteralValue::value_float() const
 127 {
 128    return m_value.f;
 129 }
 130
 131 void LiteralValue::do_print(std::ostream& os) const
 132 {
 133    os << "[0x" << std::setbase(16) << m_value.u << " " << std::setbase(10)
 134       << m_value.f << "].";
 135    os << component_names[chan()];
 136 }
 137
 138 void LiteralValue::do_print(std::ostream& os, UNUSED const PrintFlags& flags) const
 139 {
 140    os << "[0x" << std::setbase(16) << m_value.u << " "
 141       << std::setbase(10);
 142
 143    os << m_value.f << "f";
 144
 145    os<< "]";
 146 }
 147
 148 bool LiteralValue::is_equal_to(const Value& other) const
 149 {
 150    assert(other.type() == Value::Type::literal);
 151    const auto& rhs = static_cast<const LiteralValue&>(other);
 152    return (sel() == rhs.sel() &&
 153            value() == rhs.value());
 154 }
 155
 156 SpecialValue::SpecialValue(Type type, int value, int chan):
 157    Value(type, chan),
 158    m_value(static_cast<AluInlineConstants>(value))
 159 {
 160 }
 161
 162 uint32_t SpecialValue::sel() const
 163 {
 164    return m_value;
 165 }
 166
 167
 168 void SpecialValue::do_print(std::ostream& os) const
 169 {
 170    auto sv_info = alu_src_const.find(m_value);
 171    if (sv_info != alu_src_const.end()) {
 172       os << sv_info->second.descr;
 173       if (sv_info->second.use_chan)
 174          os << '.' << component_names[chan()];
 175       else if (chan() > 0)
 176          os << "." << component_names[chan()]
 177             << " (W: Channel ignored)";
 178    } else {
 179       if (m_value >= ALU_SRC_PARAM_BASE && m_value < ALU_SRC_PARAM_BASE + 32)
 180          os << " Param" << m_value - ALU_SRC_PARAM_BASE;
 181       else
 182          os << " E: unknown inline constant " << m_value;
 183    }
 184 }
 185
 186 PValue Value::zero(new InlineConstValue(ALU_SRC_0, 0));
 187 PValue Value::one_f(new InlineConstValue(ALU_SRC_1, 0));
 188 PValue Value::one_i(new InlineConstValue(ALU_SRC_1_INT, 0));
 189 PValue Value::zero_dot_5(new InlineConstValue(ALU_SRC_0_5, 0));
 190
 191 InlineConstValue::InlineConstValue(int value, int chan):
 192    SpecialValue(Value::cinline, value, chan)
 193 {
 194 }
 195
 196 bool InlineConstValue::is_equal_to(const Value& other) const
 197 {
 198    assert(other.type() == Value::Type::cinline);
 199    const auto& rhs = static_cast<const InlineConstValue&>(other);
 200    return sel() == rhs.sel();
 201 }
 202
 203 UniformValue::UniformValue(uint32_t sel, uint32_t chan, uint32_t kcache_bank):
 204    Value(Value::kconst, chan)
 205 {
 206    m_index = sel;
 207    m_kcache_bank = kcache_bank;
 208 }
 209
 210 UniformValue::UniformValue(uint32_t sel, uint32_t chan, PValue addr):
 211    Value(Value::kconst, chan),
 212    m_index(sel),
 213    m_kcache_bank(0),
 214    m_addr(addr)
 215 {
 216
 217 }
 218
 219 uint32_t UniformValue::sel() const
 220 {
 221    const int bank_base[4] = {128, 160, 256, 288};
 222    return m_index < 512 ? m_index + bank_base[m_kcache_bank] : m_index;
 223 }
 224
 225 uint32_t UniformValue::kcache_bank() const
 226 {
 227    return m_kcache_bank;
 228 }
 229
 230 bool UniformValue::is_equal_to(const Value& other) const
 231 {
 232    const UniformValue& o = static_cast<const UniformValue&>(other);
 233    return sel()  == o.sel() &&
 234          m_kcache_bank == o.kcache_bank();
 235 }
 236
 237 void UniformValue::do_print(std::ostream& os) const
 238 {
 239    if (m_index < 512)
 240       os << "KC" << m_kcache_bank << "[" << m_index;
 241    else
 242       os << "KCX[" << m_index;
 243    os << "]." << component_names[chan()];
 244 }
 245
 246 }