54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <tuple>
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#include "common/bit_util.h"
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#include "common/common_types.h"
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namespace Core {
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namespace Hardware {
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// The below clock rate is based on Switch's clockspeed being widely known as 1.020GHz
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// The exact value used is of course unverified.
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constexpr u64 BASE_CLOCK_RATE = 1019215872; // Switch cpu frequency is 1020MHz un/docked
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constexpr u64 CNTFREQ = 19200000; // Switch's hardware clock speed
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constexpr u32 NUM_CPU_CORES = 4; // Number of CPU Cores
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// Virtual to Physical core map.
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constexpr std::array<s32, Common::BitSize<u64>()> VirtualToPhysicalCoreMap{
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0, 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
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};
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static constexpr inline size_t NumVirtualCores = Common::BitSize<u64>();
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static constexpr inline u64 VirtualCoreMask = [] {
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u64 mask = 0;
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for (size_t i = 0; i < NumVirtualCores; ++i) {
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mask |= (UINT64_C(1) << i);
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}
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return mask;
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}();
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static constexpr inline u64 ConvertVirtualCoreMaskToPhysical(u64 v_core_mask) {
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u64 p_core_mask = 0;
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while (v_core_mask != 0) {
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const u64 next = std::countr_zero(v_core_mask);
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v_core_mask &= ~(static_cast<u64>(1) << next);
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p_core_mask |= (static_cast<u64>(1) << VirtualToPhysicalCoreMap[next]);
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}
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return p_core_mask;
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}
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// Cortex-A57 supports 4 memory watchpoints
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constexpr u64 NUM_WATCHPOINTS = 4;
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} // namespace Hardware
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} // namespace Core
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