diff options
| author | Charles Lombardo <clombardo169@gmail.com> | 2023-11-03 16:21:54 -0400 |
|---|---|---|
| committer | Charles Lombardo <clombardo169@gmail.com> | 2023-11-03 16:21:54 -0400 |
| commit | 4b321c003caed15a23d6f221da871980ceed72c2 (patch) | |
| tree | ac354f142cc41c7c257d7b617515ad88b8548ceb | |
| parent | d6e6ab11b1699c1de4ca7225f9aecbf3780836cf (diff) | |
arm: NativeClock: Special handling for bad system counter clock frequency reporting
On some devices, checking the system counter clock frequency will return 0. Substitute in the correct values to prevent issues.
| -rw-r--r-- | src/common/arm64/native_clock.cpp | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/common/arm64/native_clock.cpp b/src/common/arm64/native_clock.cpp index 88fdba5277..f437d71870 100644 --- a/src/common/arm64/native_clock.cpp +++ b/src/common/arm64/native_clock.cpp @@ -1,6 +1,9 @@ // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later +#ifdef ANDROID +#include <sys/system_properties.h> +#endif #include "common/arm64/native_clock.h" namespace Common::Arm64 { @@ -65,7 +68,23 @@ bool NativeClock::IsNative() const { u64 NativeClock::GetHostCNTFRQ() { u64 cntfrq_el0 = 0; - asm("mrs %[cntfrq_el0], cntfrq_el0" : [cntfrq_el0] "=r"(cntfrq_el0)); + std::string_view board{""}; +#ifdef ANDROID + char buffer[PROP_VALUE_MAX]; + int len{__system_property_get("ro.product.board", buffer)}; + board = std::string_view(buffer, static_cast<size_t>(len)); +#endif + if (board == "s5e9925") { // Exynos 2200 + cntfrq_el0 = 25600000; + } else if (board == "exynos2100") { // Exynos 2100 + cntfrq_el0 = 26000000; + } else if (board == "exynos9810") { // Exynos 9810 + cntfrq_el0 = 26000000; + } else if (board == "s5e8825") { // Exynos 1280 + cntfrq_el0 = 26000000; + } else { + asm("mrs %[cntfrq_el0], cntfrq_el0" : [cntfrq_el0] "=r"(cntfrq_el0)); + } return cntfrq_el0; } |