diff options
Diffstat (limited to 'src/core/hardware_properties.h')
| -rw-r--r-- | src/core/hardware_properties.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/src/core/hardware_properties.h b/src/core/hardware_properties.h index 13cbdb734..191c28bb4 100644 --- a/src/core/hardware_properties.h +++ b/src/core/hardware_properties.h @@ -13,11 +13,9 @@ namespace Core { namespace Hardware { -// The below clock rate is based on Switch's clockspeed being widely known as 1.020GHz -// The exact value used is of course unverified. -constexpr u64 BASE_CLOCK_RATE = 1019215872; // Switch cpu frequency is 1020MHz un/docked -constexpr u64 CNTFREQ = 19200000; // Switch's hardware clock speed -constexpr u32 NUM_CPU_CORES = 4; // Number of CPU Cores +constexpr u64 BASE_CLOCK_RATE = 1'020'000'000; // Default CPU Frequency = 1020 MHz +constexpr u64 CNTFREQ = 19'200'000; // CNTPCT_EL0 Frequency = 19.2 MHz +constexpr u32 NUM_CPU_CORES = 4; // Number of CPU Cores // Virtual to Physical core map. constexpr std::array<s32, Common::BitSize<u64>()> VirtualToPhysicalCoreMap{ @@ -25,6 +23,26 @@ constexpr std::array<s32, Common::BitSize<u64>()> VirtualToPhysicalCoreMap{ 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, }; +static constexpr inline size_t NumVirtualCores = Common::BitSize<u64>(); + +static constexpr inline u64 VirtualCoreMask = [] { + u64 mask = 0; + for (size_t i = 0; i < NumVirtualCores; ++i) { + mask |= (UINT64_C(1) << i); + } + return mask; +}(); + +static constexpr inline u64 ConvertVirtualCoreMaskToPhysical(u64 v_core_mask) { + u64 p_core_mask = 0; + while (v_core_mask != 0) { + const u64 next = std::countr_zero(v_core_mask); + v_core_mask &= ~(static_cast<u64>(1) << next); + p_core_mask |= (static_cast<u64>(1) << VirtualToPhysicalCoreMap[next]); + } + return p_core_mask; +} + // Cortex-A57 supports 4 memory watchpoints constexpr u64 NUM_WATCHPOINTS = 4; |