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Merge pull request #11955 from t895/cntfrq-fix
arm: NativeClock: Special handling for bad system counter clock frequ…
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commit
9631dedea9
1 changed files with 20 additions and 1 deletions
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@ -1,6 +1,9 @@
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#ifdef ANDROID
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#include <sys/system_properties.h>
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#endif
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#include "common/arm64/native_clock.h"
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namespace Common::Arm64 {
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@ -65,7 +68,23 @@ bool NativeClock::IsNative() const {
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u64 NativeClock::GetHostCNTFRQ() {
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u64 cntfrq_el0 = 0;
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std::string_view board{""};
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#ifdef ANDROID
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char buffer[PROP_VALUE_MAX];
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int len{__system_property_get("ro.product.board", buffer)};
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board = std::string_view(buffer, static_cast<size_t>(len));
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#endif
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if (board == "s5e9925") { // Exynos 2200
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cntfrq_el0 = 25600000;
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} else if (board == "exynos2100") { // Exynos 2100
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cntfrq_el0 = 26000000;
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} else if (board == "exynos9810") { // Exynos 9810
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cntfrq_el0 = 26000000;
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} else if (board == "s5e8825") { // Exynos 1280
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cntfrq_el0 = 26000000;
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} else {
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asm("mrs %[cntfrq_el0], cntfrq_el0" : [cntfrq_el0] "=r"(cntfrq_el0));
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}
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return cntfrq_el0;
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}
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