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Merge pull request #2410 from lioncash/affinity 

kernel/svc: Reorganize and fix up the initial handling of svcSetThreadCoreMask()
This commit is contained in:
bunnei 2019-05-19 13:59:52 -04:00 committed by GitHub
parent b94b08fa6f 19632d2421
commit 13dda1d8ed
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 64 additions and 48 deletions
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91
src/core/hle/kernel/svc.cpp
View File

@ -1342,7 +1342,7 @@ static void ExitProcess(Core::System& system) {
/// Creates a new thread
static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point, u64 arg,
VAddr stack_top, u32 priority, s32 processor_id) {
LOG_TRACE(Kernel_SVC,
LOG_DEBUG(Kernel_SVC,
"called entrypoint=0x{:08X}, arg=0x{:08X}, stacktop=0x{:08X}, "
"threadpriority=0x{:08X}, processorid=0x{:08X} : created handle=0x{:08X}",
entry_point, arg, stack_top, priority, processor_id, *out_handle);
@ -1402,7 +1402,7 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
/// Starts the thread for the provided handle
static ResultCode StartThread(Core::System& system, Handle thread_handle) {
LOG_TRACE(Kernel_SVC, "called thread=0x{:08X}", thread_handle);
LOG_DEBUG(Kernel_SVC, "called thread=0x{:08X}", thread_handle);
const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
const SharedPtr<Thread> thread = handle_table.Get<Thread>(thread_handle);
@ -1425,7 +1425,7 @@ static ResultCode StartThread(Core::System& system, Handle thread_handle) {
/// Called when a thread exits
static void ExitThread(Core::System& system) {
LOG_TRACE(Kernel_SVC, "called, pc=0x{:08X}", system.CurrentArmInterface().GetPC());
LOG_DEBUG(Kernel_SVC, "called, pc=0x{:08X}", system.CurrentArmInterface().GetPC());
auto* const current_thread = system.CurrentScheduler().GetCurrentThread();
current_thread->Stop();
@ -1435,7 +1435,7 @@ static void ExitThread(Core::System& system) {
/// Sleep the current thread
static void SleepThread(Core::System& system, s64 nanoseconds) {
LOG_TRACE(Kernel_SVC, "called nanoseconds={}", nanoseconds);
LOG_DEBUG(Kernel_SVC, "called nanoseconds={}", nanoseconds);
enum class SleepType : s64 {
YieldWithoutLoadBalancing = 0,
@ -1880,11 +1880,51 @@ static ResultCode GetThreadCoreMask(Core::System& system, Handle thread_handle,
}
static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle, u32 core,
u64 mask) {
LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, mask=0x{:016X}, core=0x{:X}", thread_handle,
mask, core);
u64 affinity_mask) {
LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, core=0x{:X}, affinity_mask=0x{:016X}",
thread_handle, core, affinity_mask);
const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
const auto* const current_process = system.Kernel().CurrentProcess();
if (core == static_cast<u32>(THREADPROCESSORID_IDEAL)) {
const u8 ideal_cpu_core = current_process->GetIdealCore();
ASSERT(ideal_cpu_core != static_cast<u8>(THREADPROCESSORID_IDEAL));
// Set the target CPU to the ideal core specified by the process.
core = ideal_cpu_core;
affinity_mask = 1ULL << core;
} else {
const u64 core_mask = current_process->GetCoreMask();
if ((core_mask | affinity_mask) != core_mask) {
LOG_ERROR(
Kernel_SVC,
"Invalid processor ID specified (core_mask=0x{:08X}, affinity_mask=0x{:016X})",
core_mask, affinity_mask);
return ERR_INVALID_PROCESSOR_ID;
}
if (affinity_mask == 0) {
LOG_ERROR(Kernel_SVC, "Specfified affinity mask is zero.");
return ERR_INVALID_COMBINATION;
}
if (core < Core::NUM_CPU_CORES) {
if ((affinity_mask & (1ULL << core)) == 0) {
LOG_ERROR(Kernel_SVC,
"Core is not enabled for the current mask, core={}, mask={:016X}", core,
affinity_mask);
return ERR_INVALID_COMBINATION;
}
} else if (core != static_cast<u32>(THREADPROCESSORID_DONT_CARE) &&
core != static_cast<u32>(THREADPROCESSORID_DONT_UPDATE)) {
LOG_ERROR(Kernel_SVC, "Invalid processor ID specified (core={}).", core);
return ERR_INVALID_PROCESSOR_ID;
}
}
const auto& handle_table = current_process->GetHandleTable();
const SharedPtr<Thread> thread = handle_table.Get<Thread>(thread_handle);
if (!thread) {
LOG_ERROR(Kernel_SVC, "Thread handle does not exist, thread_handle=0x{:08X}",
@ -1892,40 +1932,7 @@ static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle,
return ERR_INVALID_HANDLE;
}
if (core == static_cast<u32>(THREADPROCESSORID_IDEAL)) {
const u8 ideal_cpu_core = thread->GetOwnerProcess()->GetIdealCore();
ASSERT(ideal_cpu_core != static_cast<u8>(THREADPROCESSORID_IDEAL));
// Set the target CPU to the ideal core specified by the process.
core = ideal_cpu_core;
mask = 1ULL << core;
}
if (mask == 0) {
LOG_ERROR(Kernel_SVC, "Mask is 0");
return ERR_INVALID_COMBINATION;
}
/// This value is used to only change the affinity mask without changing the current ideal core.
static constexpr u32 OnlyChangeMask = static_cast<u32>(-3);
if (core == OnlyChangeMask) {
core = thread->GetIdealCore();
} else if (core >= Core::NUM_CPU_CORES && core != static_cast<u32>(-1)) {
LOG_ERROR(Kernel_SVC, "Invalid core specified, got {}", core);
return ERR_INVALID_PROCESSOR_ID;
}
// Error out if the input core isn't enabled in the input mask.
if (core < Core::NUM_CPU_CORES && (mask & (1ull << core)) == 0) {
LOG_ERROR(Kernel_SVC, "Core is not enabled for the current mask, core={}, mask={:016X}",
core, mask);
return ERR_INVALID_COMBINATION;
}
thread->ChangeCore(core, mask);
thread->ChangeCore(core, affinity_mask);
return RESULT_SUCCESS;
}

11
src/core/hle/kernel/thread.h
View File

@ -30,7 +30,16 @@ enum ThreadPriority : u32 {
};
enum ThreadProcessorId : s32 {
THREADPROCESSORID_IDEAL = -2, ///< Run thread on the ideal core specified by the process.
/// Indicates that no particular processor core is preferred.
THREADPROCESSORID_DONT_CARE = -1,
/// Run thread on the ideal core specified by the process.
THREADPROCESSORID_IDEAL = -2,
/// Indicates that the preferred processor ID shouldn't be updated in
/// a core mask setting operation.
THREADPROCESSORID_DONT_UPDATE = -3,
THREADPROCESSORID_0 = 0, ///< Run thread on core 0
THREADPROCESSORID_1 = 1, ///< Run thread on core 1
THREADPROCESSORID_2 = 2, ///< Run thread on core 2