71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
#pragma once
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#include "pipeline.h"
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#include <queue>
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namespace vortex {
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class Scoreboard {
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private:
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std::vector<RegMask> in_use_iregs_;
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std::vector<RegMask> in_use_fregs_;
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std::vector<RegMask> in_use_vregs_;
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public:
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Scoreboard(const ArchDef &arch)
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: in_use_iregs_(arch.num_warps())
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, in_use_fregs_(arch.num_warps())
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, in_use_vregs_(arch.num_warps())
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{
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for (int w = 0; w < arch.num_warps(); ++w) {
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in_use_iregs_.at(w).reset();
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in_use_fregs_.at(w).reset();
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in_use_vregs_.at(w).reset();
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}
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}
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bool in_use(const pipeline_state_t& state) const {
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return (state.used_iregs & in_use_iregs_.at(state.wid)) != 0
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|| (state.used_fregs & in_use_fregs_.at(state.wid)) != 0
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|| (state.used_vregs & in_use_vregs_.at(state.wid)) != 0;
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}
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void reserve(const pipeline_state_t& state) {
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if (!state.rdest)
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return;
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switch (state.rdest_type) {
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case 1:
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in_use_iregs_.at(state.wid).set(state.rdest);
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break;
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case 2:
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in_use_fregs_.at(state.wid).set(state.rdest);
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break;
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case 3:
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in_use_vregs_.at(state.wid).set(state.rdest);
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break;
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default:
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break;
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}
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}
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void release(const pipeline_state_t& state) {
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if (!state.rdest)
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return;
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switch (state.rdest_type) {
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case 1:
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in_use_iregs_.at(state.wid).reset(state.rdest);
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break;
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case 2:
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in_use_fregs_.at(state.wid).reset(state.rdest);
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break;
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case 3:
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in_use_vregs_.at(state.wid).reset(state.rdest);
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break;
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default:
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break;
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}
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}
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};
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} |