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Make GetTimeTicks return the time in guest ticks as opposed to host

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This is required by audren.
This commit is contained in:
Billy Laws 2023-03-15 17:53:01 +00:00
parent d5a15faab7
commit 7d573db80b
1 changed files with 11 additions and 9 deletions
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20
app/src/main/cpp/skyline/common/utils.h
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@ -49,25 +49,27 @@ namespace skyline::util {
inline const u64 ClockFrequency{detail::InitFrequency()}; //!< The system counter clock frequency in Hz inline const u64 ClockFrequency{detail::InitFrequency()}; //!< The system counter clock frequency in Hz
template<i64 TargetFrequency>
inline i64 GetTimeScaled() {
u64 frequency{ClockFrequency};
u64 ticks;
asm volatile("MRS %0, CNTVCT_EL0" : "=r"(ticks));
return static_cast<i64>(((ticks / frequency) * TargetFrequency) + (((ticks % frequency) * TargetFrequency + (frequency / 2)) / frequency));
}
/** /**
* @brief Returns the current time in nanoseconds * @brief Returns the current time in nanoseconds
* @return The current time in nanoseconds * @return The current time in nanoseconds
*/ */
inline i64 GetTimeNs() { inline i64 GetTimeNs() {
u64 frequency{ClockFrequency}; return GetTimeScaled<constant::NsInSecond>();
u64 ticks;
asm volatile("MRS %0, CNTVCT_EL0" : "=r"(ticks));
return static_cast<i64>(((ticks / frequency) * constant::NsInSecond) + (((ticks % frequency) * constant::NsInSecond + (frequency / 2)) / frequency));
} }
/** /**
* @brief Returns the current time in arbitrary ticks * @return The current time in guest ticks
* @return The current time in ticks
*/ */
inline u64 GetTimeTicks() { inline u64 GetTimeTicks() {
u64 ticks; constexpr i64 TegraX1ClockFrequency{19200000}; // The clock frequency of the Tegra X1 (19.2 MHz)
asm volatile("MRS %0, CNTVCT_EL0" : "=r"(ticks)); return static_cast<u64>(GetTimeScaled<TegraX1ClockFrequency>());
return ticks;
} }
/** /**