diff options
Diffstat (limited to '')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 53 |
1 files changed, 50 insertions, 3 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 69ba7b777..4b4831c08 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -11,6 +11,7 @@ #include "common/string_util.h" #include "core/core.h" #include "core/core_timing.h" +#include "core/hle/kernel/address_arbiter.h" #include "core/hle/kernel/client_port.h" #include "core/hle/kernel/client_session.h" #include "core/hle/kernel/event.h" @@ -580,7 +581,7 @@ static void SleepThread(s64 nanoseconds) { Core::System::GetInstance().PrepareReschedule(); } -/// Signal process wide key atomic +/// Wait process wide key atomic static ResultCode WaitProcessWideKeyAtomic(VAddr mutex_addr, VAddr condition_variable_addr, Handle thread_handle, s64 nano_seconds) { NGLOG_TRACE( @@ -689,6 +690,52 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target return RESULT_SUCCESS; } +// Wait for an address (via Address Arbiter) +static ResultCode WaitForAddress(VAddr address, u32 type, s32 value, s64 timeout) { + // If the passed address is a kernel virtual address, return invalid memory state. + if ((address + 0x8000000000LL) < 0x7FFFE00000LL) { + return ERR_INVALID_ADDRESS_STATE; + } + // If the address is not properly aligned to 4 bytes, return invalid address. + if (address % sizeof(u32) != 0) { + return ERR_INVALID_ADDRESS; + } + + switch ((AddressArbiter::ArbitrationType)type) { + case AddressArbiter::ArbitrationType::WaitIfLessThan: + return AddressArbiter::WaitForAddressIfLessThan(address, value, timeout, false); + case AddressArbiter::ArbitrationType::DecrementAndWaitIfLessThan: + return AddressArbiter::WaitForAddressIfLessThan(address, value, timeout, true); + case AddressArbiter::ArbitrationType::WaitIfEqual: + return AddressArbiter::WaitForAddressIfEqual(address, value, timeout); + default: + return ERR_INVALID_ENUM_VALUE; + } +} + +// Signals to an address (via Address Arbiter) +static ResultCode SignalToAddress(VAddr address, u32 type, s32 value, s32 num_to_wake) { + // If the passed address is a kernel virtual address, return invalid memory state. + if ((address + 0x8000000000LL) < 0x7FFFE00000LL) { + return ERR_INVALID_ADDRESS_STATE; + } + // If the address is not properly aligned to 4 bytes, return invalid address. + if (address % sizeof(u32) != 0) { + return ERR_INVALID_ADDRESS; + } + + switch ((AddressArbiter::SignalType)type) { + case AddressArbiter::SignalType::Signal: + return AddressArbiter::SignalToAddress(address, value, num_to_wake); + case AddressArbiter::SignalType::IncrementAndSignalIfEqual: + return AddressArbiter::IncrementAndSignalToAddressIfEqual(address, value, num_to_wake); + case AddressArbiter::SignalType::ModifyByWaitingCountAndSignalIfEqual: + return AddressArbiter::ModifyByWaitingCountAndSignalToAddressIfEqual(address, value, num_to_wake); + default: + return ERR_INVALID_ENUM_VALUE; + } +} + /// This returns the total CPU ticks elapsed since the CPU was powered-on static u64 GetSystemTick() { const u64 result{CoreTiming::GetTicks()}; @@ -861,8 +908,8 @@ static const FunctionDef SVC_Table[] = { {0x31, nullptr, "GetResourceLimitCurrentValue"}, {0x32, SvcWrap<SetThreadActivity>, "SetThreadActivity"}, {0x33, SvcWrap<GetThreadContext>, "GetThreadContext"}, - {0x34, nullptr, "WaitForAddress"}, - {0x35, nullptr, "SignalToAddress"}, + {0x34, SvcWrap<WaitForAddress>, "WaitForAddress"}, + {0x35, SvcWrap<SignalToAddress>, "SignalToAddress"}, {0x36, nullptr, "Unknown"}, {0x37, nullptr, "Unknown"}, {0x38, nullptr, "Unknown"}, |