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core: refactor emulated cpu core activation

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This commit is contained in:
Liam 2023-11-28 14:30:39 -05:00
parent 90e87c40e8
commit 45c87c7e6e
47 changed files with 2984 additions and 3332 deletions
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76
src/core/hle/kernel/k_thread.cpp
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@ -41,24 +41,25 @@ namespace {
constexpr inline s32 TerminatingThreadPriority = Kernel::Svc::SystemThreadPriorityHighest - 1;
static void ResetThreadContext32(Kernel::KThread::ThreadContext32& context, u32 stack_top,
u32 entry_point, u32 arg) {
context = {};
context.cpu_registers[0] = arg;
context.cpu_registers[15] = entry_point;
context.cpu_registers[13] = stack_top;
context.fpscr = 0;
static void ResetThreadContext32(Kernel::Svc::ThreadContext& ctx, u64 stack_top, u64 entry_point,
u64 arg) {
ctx = {};
ctx.r[0] = arg;
ctx.r[15] = entry_point;
ctx.r[13] = stack_top;
ctx.fpcr = 0;
ctx.fpsr = 0;
}
static void ResetThreadContext64(Kernel::KThread::ThreadContext64& context, u64 stack_top,
u64 entry_point, u64 arg) {
context = {};
context.cpu_registers[0] = arg;
context.cpu_registers[18] = Kernel::KSystemControl::GenerateRandomU64() | 1;
context.pc = entry_point;
context.sp = stack_top;
context.fpcr = 0;
context.fpsr = 0;
static void ResetThreadContext64(Kernel::Svc::ThreadContext& ctx, u64 stack_top, u64 entry_point,
u64 arg) {
ctx = {};
ctx.r[0] = arg;
ctx.r[18] = Kernel::KSystemControl::GenerateRandomU64() | 1;
ctx.pc = entry_point;
ctx.sp = stack_top;
ctx.fpcr = 0;
ctx.fpsr = 0;
}
} // namespace
@ -223,9 +224,11 @@ Result KThread::Initialize(KThreadFunction func, uintptr_t arg, KProcessAddress
}
// Initialize thread context.
ResetThreadContext64(m_thread_context_64, GetInteger(user_stack_top), GetInteger(func), arg);
ResetThreadContext32(m_thread_context_32, static_cast<u32>(GetInteger(user_stack_top)),
static_cast<u32>(GetInteger(func)), static_cast<u32>(arg));
if (m_parent != nullptr && !m_parent->Is64Bit()) {
ResetThreadContext32(m_thread_context, GetInteger(user_stack_top), GetInteger(func), arg);
} else {
ResetThreadContext64(m_thread_context, GetInteger(user_stack_top), GetInteger(func), arg);
}
// Setup the stack parameters.
StackParameters& sp = this->GetStackParameters();
@ -823,20 +826,7 @@ void KThread::CloneFpuStatus() {
ASSERT(this->GetOwnerProcess() != nullptr);
ASSERT(this->GetOwnerProcess() == GetCurrentProcessPointer(m_kernel));
if (this->GetOwnerProcess()->Is64Bit()) {
// Clone FPSR and FPCR.
ThreadContext64 cur_ctx{};
m_kernel.System().CurrentArmInterface().SaveContext(cur_ctx);
this->GetContext64().fpcr = cur_ctx.fpcr;
this->GetContext64().fpsr = cur_ctx.fpsr;
} else {
// Clone FPSCR.
ThreadContext32 cur_ctx{};
m_kernel.System().CurrentArmInterface().SaveContext(cur_ctx);
this->GetContext32().fpscr = cur_ctx.fpscr;
}
m_kernel.CurrentPhysicalCore().CloneFpuStatus(this);
}
Result KThread::SetActivity(Svc::ThreadActivity activity) {
@ -912,7 +902,7 @@ Result KThread::SetActivity(Svc::ThreadActivity activity) {
R_SUCCEED();
}
Result KThread::GetThreadContext3(Common::ScratchBuffer<u8>& out) {
Result KThread::GetThreadContext3(Svc::ThreadContext* out) {
// Lock ourselves.
KScopedLightLock lk{m_activity_pause_lock};
@ -926,18 +916,16 @@ Result KThread::GetThreadContext3(Common::ScratchBuffer<u8>& out) {
// If we're not terminating, get the thread's user context.
if (!this->IsTerminationRequested()) {
*out = m_thread_context;
// Mask away mode bits, interrupt bits, IL bit, and other reserved bits.
constexpr u32 El0Aarch64PsrMask = 0xF0000000;
constexpr u32 El0Aarch32PsrMask = 0xFE0FFE20;
if (m_parent->Is64Bit()) {
// Mask away mode bits, interrupt bits, IL bit, and other reserved bits.
auto context = GetContext64();
context.pstate &= 0xFF0FFE20;
out.resize_destructive(sizeof(context));
std::memcpy(out.data(), std::addressof(context), sizeof(context));
out->pstate &= El0Aarch64PsrMask;
} else {
// Mask away mode bits, interrupt bits, IL bit, and other reserved bits.
auto context = GetContext32();
context.cpsr &= 0xFF0FFE20;
out.resize_destructive(sizeof(context));
std::memcpy(out.data(), std::addressof(context), sizeof(context));
out->pstate &= El0Aarch32PsrMask;
}
}
}