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Kernel: Rename Processor::id() => current_id()

Browse source 
And let id() be the non-static version that gives you the ID of a
Processor object.
This commit is contained in:
Andreas Kling 2021-08-22 12:37:50 +02:00
parent 0f03a8aece
commit dea93a8bb9
Notes: sideshowbarker 2024-07-18 05:22:55 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/dea93a8bb9f
9 changed files with 54 additions and 54 deletions
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4
AK/Format.cpp
View file

@ -789,9 +789,9 @@ void vdbgln(StringView fmtstr, TypeErasedFormatParams params)
# ifdef KERNEL
if (Kernel::Processor::is_initialized() && Kernel::Thread::current()) {
auto& thread = *Kernel::Thread::current();
builder.appendff("\033[34;1m[#{} {}({}:{})]\033[0m: ", Kernel::Processor::id(), thread.process().name(), thread.pid().value(), thread.tid().value());
builder.appendff("\033[34;1m[#{} {}({}:{})]\033[0m: ", Kernel::Processor::current_id(), thread.process().name(), thread.pid().value(), thread.tid().value());
} else {
builder.appendff("\033[34;1m[#{} Kernel]\033[0m: ", Kernel::Processor::id());
builder.appendff("\033[34;1m[#{} Kernel]\033[0m: ", Kernel::Processor::current_id());
}
# else
static TriState got_process_name = TriState::Unknown;

6
Kernel/Arch/x86/Processor.h
View file

@ -308,7 +308,7 @@ public:
return (Thread*)read_gs_ptr(__builtin_offsetof(Processor, m_idle_thread));
}
ALWAYS_INLINE u32 get_id() const
ALWAYS_INLINE u32 id() const
{
// NOTE: This variant should only be used when iterating over all
// Processor instances, or when it's guaranteed that the thread
@ -318,7 +318,7 @@ public:
return m_cpu;
}
ALWAYS_INLINE static u32 id()
ALWAYS_INLINE static u32 current_id()
{
// See comment in Processor::current_thread
return read_gs_ptr(__builtin_offsetof(Processor, m_cpu));
@ -326,7 +326,7 @@ public:
ALWAYS_INLINE static bool is_bootstrap_processor()
{
return Processor::id() == 0;
return Processor::current_id() == 0;
}
ALWAYS_INLINE static FlatPtr current_in_irq()

4
Kernel/Arch/x86/common/Interrupts.cpp
View file

@ -223,7 +223,7 @@ void handle_crash(RegisterState const& regs, char const* description, int signal
// make sure we switch back to the right page tables.
MM.enter_process_paging_scope(process);
dmesgln("CRASH: CPU #{} {} in ring {}", Processor::id(), description, (regs.cs & 3));
dmesgln("CRASH: CPU #{} {} in ring {}", Processor::current_id(), description, (regs.cs & 3));
dump(regs);
if (!(regs.cs & 3)) {
@ -275,7 +275,7 @@ void page_fault_handler(TrapFrame* trap)
if constexpr (PAGE_FAULT_DEBUG) {
u32 fault_page_directory = read_cr3();
dbgln("CPU #{} ring {} {} page fault in PD={:#x}, {}{} {}",
Processor::is_initialized() ? Processor::id() : 0,
Processor::is_initialized() ? Processor::current_id() : 0,
regs.cs & 3,
regs.exception_code & 1 ? "PV" : "NP",
fault_page_directory,

46
Kernel/Arch/x86/common/Processor.cpp
View file

@ -333,10 +333,10 @@ UNMAP_AFTER_INIT void Processor::initialize(u32 cpu)
VERIFY(m_self == this);
VERIFY(&current() == this); // sanity check
dmesgln("CPU[{}]: Supported features: {}", id(), features_string());
dmesgln("CPU[{}]: Supported features: {}", current_id(), features_string());
if (!has_feature(CPUFeature::RDRAND))
dmesgln("CPU[{}]: No RDRAND support detected, randomness will be poor", id());
dmesgln("CPU[{}]: Physical address bit width: {}", id(), m_physical_address_bit_width);
dmesgln("CPU[{}]: No RDRAND support detected, randomness will be poor", current_id());
dmesgln("CPU[{}]: Physical address bit width: {}", current_id(), m_physical_address_bit_width);
if (cpu == 0)
idt_init();
@ -378,7 +378,7 @@ UNMAP_AFTER_INIT void Processor::detect_hypervisor()
hypervisor_signature_buffer[12] = '\0';
StringView hypervisor_signature(hypervisor_signature_buffer);
dmesgln("CPU[{}]: CPUID hypervisor signature '{}' ({:#x} {:#x} {:#x}), max leaf {:#x}", id(), hypervisor_signature, hypervisor_leaf_range.ebx(), hypervisor_leaf_range.ecx(), hypervisor_leaf_range.edx(), hypervisor_leaf_range.eax());
dmesgln("CPU[{}]: CPUID hypervisor signature '{}' ({:#x} {:#x} {:#x}), max leaf {:#x}", current_id(), hypervisor_signature, hypervisor_leaf_range.ebx(), hypervisor_leaf_range.ecx(), hypervisor_leaf_range.edx(), hypervisor_leaf_range.eax());
if (hypervisor_signature == "Microsoft Hv"sv)
detect_hypervisor_hyperv(hypervisor_leaf_range);
@ -397,18 +397,18 @@ UNMAP_AFTER_INIT void Processor::detect_hypervisor_hyperv(CPUID const& hyperviso
interface_signature_buffer[4] = '\0';
StringView hyperv_interface_signature(interface_signature_buffer);
dmesgln("CPU[{}]: Hyper-V interface signature '{}' ({:#x})", id(), hyperv_interface_signature, hypervisor_interface.eax());
dmesgln("CPU[{}]: Hyper-V interface signature '{}' ({:#x})", current_id(), hyperv_interface_signature, hypervisor_interface.eax());
if (hypervisor_leaf_range.eax() < 0x40000001)
return;
CPUID hypervisor_sysid(0x40000002);
dmesgln("CPU[{}]: Hyper-V system identity {}.{}, build number {}", id(), hypervisor_sysid.ebx() >> 16, hypervisor_sysid.ebx() & 0xFFFF, hypervisor_sysid.eax());
dmesgln("CPU[{}]: Hyper-V system identity {}.{}, build number {}", current_id(), hypervisor_sysid.ebx() >> 16, hypervisor_sysid.ebx() & 0xFFFF, hypervisor_sysid.eax());
if (hypervisor_leaf_range.eax() < 0x40000005 || hyperv_interface_signature != "Hv#1"sv)
return;
dmesgln("CPU[{}]: Hyper-V hypervisor detected", id());
dmesgln("CPU[{}]: Hyper-V hypervisor detected", current_id());
// TODO: Actually do something with Hyper-V.
}
@ -510,7 +510,7 @@ Vector<FlatPtr> Processor::capture_stack_trace(Thread& thread, size_t max_frames
lock.unlock();
capture_current_thread();
} else if (thread.is_active()) {
VERIFY(thread.cpu() != Processor::id());
VERIFY(thread.cpu() != Processor::current_id());
// If this is the case, the thread is currently running
// on another processor. We can't trust the kernel stack as
// it may be changing at any time. We need to probably send
@ -520,7 +520,7 @@ Vector<FlatPtr> Processor::capture_stack_trace(Thread& thread, size_t max_frames
smp_unicast(
thread.cpu(),
[&]() {
dbgln("CPU[{}] getting stack for cpu #{}", Processor::id(), proc.get_id());
dbgln("CPU[{}] getting stack for cpu #{}", Processor::current_id(), proc.id());
ProcessPagingScope paging_scope(thread.process());
VERIFY(&Processor::current() != &proc);
VERIFY(&thread == Processor::current_thread());
@ -743,7 +743,7 @@ u32 Processor::smp_wake_n_idle_processors(u32 wake_count)
VERIFY(wake_count > 0);
}
u32 current_id = Processor::current().id();
u32 current_id = Processor::current_id();
u32 did_wake_count = 0;
auto& apic = APIC::the();
@ -841,7 +841,7 @@ bool Processor::smp_process_pending_messages()
next_msg = cur_msg->next;
auto msg = cur_msg->msg;
dbgln_if(SMP_DEBUG, "SMP[{}]: Processing message {}", id(), VirtualAddress(msg));
dbgln_if(SMP_DEBUG, "SMP[{}]: Processing message {}", current_id(), VirtualAddress(msg));
switch (msg->type) {
case ProcessorMessage::Callback:
@ -853,7 +853,7 @@ bool Processor::smp_process_pending_messages()
VERIFY(Memory::is_user_range(VirtualAddress(msg->flush_tlb.ptr), msg->flush_tlb.page_count * PAGE_SIZE));
if (read_cr3() != msg->flush_tlb.page_directory->cr3()) {
// This processor isn't using this page directory right now, we can ignore this request
dbgln_if(SMP_DEBUG, "SMP[{}]: No need to flush {} pages at {}", id(), msg->flush_tlb.page_count, VirtualAddress(msg->flush_tlb.ptr));
dbgln_if(SMP_DEBUG, "SMP[{}]: No need to flush {} pages at {}", current_id(), msg->flush_tlb.page_count, VirtualAddress(msg->flush_tlb.ptr));
break;
}
}
@ -890,7 +890,7 @@ bool Processor::smp_enqueue_message(ProcessorMessage& msg)
// Note that it's quite possible that the other processor may pop
// the queue at any given time. We rely on the fact that the messages
// are pooled and never get freed!
auto& msg_entry = msg.per_proc_entries[get_id()];
auto& msg_entry = msg.per_proc_entries[id()];
VERIFY(msg_entry.msg == &msg);
ProcessorMessageEntry* next = nullptr;
for (;;) {
@ -907,16 +907,16 @@ bool Processor::smp_enqueue_message(ProcessorMessage& msg)
void Processor::smp_broadcast_message(ProcessorMessage& msg)
{
auto& cur_proc = Processor::current();
auto& current_processor = Processor::current();
dbgln_if(SMP_DEBUG, "SMP[{}]: Broadcast message {} to cpus: {} proc: {}", cur_proc.get_id(), VirtualAddress(&msg), count(), VirtualAddress(&cur_proc));
dbgln_if(SMP_DEBUG, "SMP[{}]: Broadcast message {} to cpus: {} processor: {}", current_processor.id(), VirtualAddress(&msg), count(), VirtualAddress(&current_processor));
msg.refs.store(count() - 1, AK::MemoryOrder::memory_order_release);
VERIFY(msg.refs > 0);
bool need_broadcast = false;
for_each(
[&](Processor& proc) {
if (&proc != &cur_proc) {
if (&proc != &current_processor) {
if (proc.smp_enqueue_message(msg))
need_broadcast = true;
}
@ -948,15 +948,15 @@ void Processor::smp_broadcast_wait_sync(ProcessorMessage& msg)
void Processor::smp_unicast_message(u32 cpu, ProcessorMessage& msg, bool async)
{
auto& cur_proc = Processor::current();
VERIFY(cpu != cur_proc.get_id());
auto& target_proc = processors()[cpu];
auto& current_processor = Processor::current();
VERIFY(cpu != current_processor.id());
auto& target_processor = processors()[cpu];
msg.async = async;
dbgln_if(SMP_DEBUG, "SMP[{}]: Send message {} to cpu #{} proc: {}", cur_proc.get_id(), VirtualAddress(&msg), cpu, VirtualAddress(&target_proc));
dbgln_if(SMP_DEBUG, "SMP[{}]: Send message {} to cpu #{} processor: {}", current_processor.id(), VirtualAddress(&msg), cpu, VirtualAddress(&target_processor));
msg.refs.store(1u, AK::MemoryOrder::memory_order_release);
if (target_proc->smp_enqueue_message(msg)) {
if (target_processor->smp_enqueue_message(msg)) {
APIC::the().send_ipi(cpu);
}
@ -969,7 +969,7 @@ void Processor::smp_unicast_message(u32 cpu, ProcessorMessage& msg, bool async)
// We need to process any messages that may have been sent to
// us while we're waiting. This also checks if another processor
// may have requested us to halt.
cur_proc.smp_process_pending_messages();
current_processor.smp_process_pending_messages();
}
smp_cleanup_message(msg);
@ -1279,7 +1279,7 @@ extern "C" void enter_thread_context(Thread* from_thread, Thread* to_thread)
if (from_regs.cr3 != to_regs.cr3)
write_cr3(to_regs.cr3);
to_thread->set_cpu(processor.get_id());
to_thread->set_cpu(processor.id());
auto in_critical = to_thread->saved_critical();
VERIFY(in_critical > 0);

2
Kernel/Arch/x86/i386/Processor.cpp
View file

@ -267,7 +267,7 @@ UNMAP_AFTER_INIT void Processor::initialize_context_switching(Thread& initial_th
:: [new_esp] "g" (regs.esp),
[new_eip] "a" (regs.eip),
[from_to_thread] "b" (&initial_thread),
[cpu] "c" (id())
[cpu] "c" (Processor::current_id())
);
// clang-format on

2
Kernel/GlobalProcessExposed.cpp
View file

@ -530,7 +530,7 @@ private:
[&](Processor& proc) {
auto& info = proc.info();
auto obj = array.add_object();
obj.add("processor", proc.get_id());
obj.add("processor", proc.id());
obj.add("cpuid", info.cpuid());
obj.add("family", info.display_family());

10
Kernel/Interrupts/APIC.cpp
View file

@ -483,15 +483,15 @@ UNMAP_AFTER_INIT void APIC::init_finished(u32 cpu)
void APIC::broadcast_ipi()
{
dbgln_if(APIC_SMP_DEBUG, "SMP: Broadcast IPI from CPU #{}", Processor::id());
dbgln_if(APIC_SMP_DEBUG, "SMP: Broadcast IPI from CPU #{}", Processor::current_id());
wait_for_pending_icr();
write_icr(ICRReg(IRQ_APIC_IPI + IRQ_VECTOR_BASE, ICRReg::Fixed, ICRReg::Logical, ICRReg::Assert, ICRReg::TriggerMode::Edge, ICRReg::AllExcludingSelf));
}
void APIC::send_ipi(u32 cpu)
{
dbgln_if(APIC_SMP_DEBUG, "SMP: Send IPI from CPU #{} to CPU #{}", Processor::id(), cpu);
VERIFY(cpu != Processor::id());
dbgln_if(APIC_SMP_DEBUG, "SMP: Send IPI from CPU #{} to CPU #{}", Processor::current_id(), cpu);
VERIFY(cpu != Processor::current_id());
VERIFY(cpu < 8);
wait_for_pending_icr();
write_icr(ICRReg(IRQ_APIC_IPI + IRQ_VECTOR_BASE, ICRReg::Fixed, ICRReg::Logical, ICRReg::Assert, ICRReg::TriggerMode::Edge, ICRReg::NoShorthand, cpu));
@ -575,7 +575,7 @@ u32 APIC::get_timer_divisor()
bool APICIPIInterruptHandler::handle_interrupt(const RegisterState&)
{
dbgln_if(APIC_SMP_DEBUG, "APIC IPI on CPU #{}", Processor::id());
dbgln_if(APIC_SMP_DEBUG, "APIC IPI on CPU #{}", Processor::current_id());
return true;
}
@ -588,7 +588,7 @@ bool APICIPIInterruptHandler::eoi()
bool APICErrInterruptHandler::handle_interrupt(const RegisterState&)
{
dbgln("APIC: SMP error on CPU #{}", Processor::id());
dbgln("APIC: SMP error on CPU #{}", Processor::current_id());
return true;
}

8
Kernel/Memory/MemoryManager.cpp
View file

@ -687,11 +687,11 @@ PageFaultResponse MemoryManager::handle_page_fault(PageFault const& fault)
VERIFY_INTERRUPTS_DISABLED();
if (Processor::current_in_irq()) {
dbgln("CPU[{}] BUG! Page fault while handling IRQ! code={}, vaddr={}, irq level: {}",
Processor::id(), fault.code(), fault.vaddr(), Processor::current_in_irq());
Processor::current_id(), fault.code(), fault.vaddr(), Processor::current_in_irq());
dump_kernel_regions();
return PageFaultResponse::ShouldCrash;
}
dbgln_if(PAGE_FAULT_DEBUG, "MM: CPU[{}] handle_page_fault({:#04x}) at {}", Processor::id(), fault.code(), fault.vaddr());
dbgln_if(PAGE_FAULT_DEBUG, "MM: CPU[{}] handle_page_fault({:#04x}) at {}", Processor::current_id(), fault.code(), fault.vaddr());
auto* region = find_region_from_vaddr(fault.vaddr());
if (!region) {
return PageFaultResponse::ShouldCrash;
@ -1008,7 +1008,7 @@ u8* MemoryManager::quickmap_page(PhysicalAddress const& physical_address)
mm_data.m_quickmap_prev_flags = mm_data.m_quickmap_in_use.lock();
SpinlockLocker lock(s_mm_lock);
VirtualAddress vaddr(KERNEL_QUICKMAP_PER_CPU_BASE + Processor::id() * PAGE_SIZE);
VirtualAddress vaddr(KERNEL_QUICKMAP_PER_CPU_BASE + Processor::current_id() * PAGE_SIZE);
u32 pte_idx = (vaddr.get() - KERNEL_PT1024_BASE) / PAGE_SIZE;
auto& pte = ((PageTableEntry*)boot_pd_kernel_pt1023)[pte_idx];
@ -1028,7 +1028,7 @@ void MemoryManager::unquickmap_page()
SpinlockLocker lock(s_mm_lock);
auto& mm_data = get_data();
VERIFY(mm_data.m_quickmap_in_use.is_locked());
VirtualAddress vaddr(KERNEL_QUICKMAP_PER_CPU_BASE + Processor::id() * PAGE_SIZE);
VirtualAddress vaddr(KERNEL_QUICKMAP_PER_CPU_BASE + Processor::current_id() * PAGE_SIZE);
u32 pte_idx = (vaddr.get() - KERNEL_PT1024_BASE) / PAGE_SIZE;
auto& pte = ((PageTableEntry*)boot_pd_kernel_pt1023)[pte_idx];
pte.clear();

26
Kernel/Scheduler.cpp
View file

@ -77,7 +77,7 @@ static inline u32 thread_priority_to_priority_index(u32 thread_priority)
Thread& Scheduler::pull_next_runnable_thread()
{
auto affinity_mask = 1u << Processor::id();
auto affinity_mask = 1u << Processor::current_id();
return g_ready_queues->with([&](auto& ready_queues) -> Thread& {
auto priority_mask = ready_queues.mask;
@ -116,7 +116,7 @@ Thread& Scheduler::pull_next_runnable_thread()
Thread* Scheduler::peek_next_runnable_thread()
{
auto affinity_mask = 1u << Processor::id();
auto affinity_mask = 1u << Processor::current_id();
return g_ready_queues->with([&](auto& ready_queues) -> Thread* {
auto priority_mask = ready_queues.mask;
@ -154,7 +154,7 @@ bool Scheduler::dequeue_runnable_thread(Thread& thread, bool check_affinity)
return false;
}
if (check_affinity && !(thread.affinity() & (1 << Processor::id())))
if (check_affinity && !(thread.affinity() & (1 << Processor::current_id())))
return false;
VERIFY(ready_queues.mask & (1u << priority));
@ -204,7 +204,7 @@ UNMAP_AFTER_INIT void Scheduler::start()
idle_thread.set_initialized(true);
processor.init_context(idle_thread, false);
idle_thread.set_state(Thread::Running);
VERIFY(idle_thread.affinity() == (1u << processor.get_id()));
VERIFY(idle_thread.affinity() == (1u << processor.id()));
processor.initialize_context_switching(idle_thread);
VERIFY_NOT_REACHED();
}
@ -236,7 +236,7 @@ bool Scheduler::pick_next()
auto& thread_to_schedule = pull_next_runnable_thread();
if constexpr (SCHEDULER_DEBUG) {
dbgln("Scheduler[{}]: Switch to {} @ {:#04x}:{:p}",
Processor::id(),
Processor::current_id(),
thread_to_schedule,
thread_to_schedule.regs().cs, thread_to_schedule.regs().ip());
}
@ -254,7 +254,7 @@ bool Scheduler::yield()
InterruptDisabler disabler;
auto current_thread = Thread::current();
dbgln_if(SCHEDULER_DEBUG, "Scheduler[{}]: yielding thread {} in_irq={}", Processor::id(), *current_thread, Processor::current_in_irq());
dbgln_if(SCHEDULER_DEBUG, "Scheduler[{}]: yielding thread {} in_irq={}", Processor::current_id(), *current_thread, Processor::current_in_irq());
VERIFY(current_thread != nullptr);
if (Processor::current_in_irq() || Processor::in_critical()) {
// If we're handling an IRQ we can't switch context, or we're in
@ -268,7 +268,7 @@ bool Scheduler::yield()
return false;
if constexpr (SCHEDULER_DEBUG)
dbgln("Scheduler[{}]: yield returns to thread {} in_irq={}", Processor::id(), *current_thread, Processor::current_in_irq());
dbgln("Scheduler[{}]: yield returns to thread {} in_irq={}", Processor::current_id(), *current_thread, Processor::current_in_irq());
return true;
}
@ -294,7 +294,7 @@ bool Scheduler::context_switch(Thread* thread)
const auto msg = "Scheduler[{}]: {} -> {} [prio={}] {:#04x}:{:p}";
dbgln(msg,
Processor::id(), from_thread->tid().value(),
Processor::current_id(), from_thread->tid().value(),
thread->tid().value(), thread->priority(), thread->regs().cs, thread->regs().ip());
#endif
}
@ -485,7 +485,7 @@ void Scheduler::timer_tick(const RegisterState& regs)
if (current_thread->previous_mode() == Thread::PreviousMode::UserMode && current_thread->should_die() && !current_thread->is_blocked()) {
SpinlockLocker scheduler_lock(g_scheduler_lock);
dbgln_if(SCHEDULER_DEBUG, "Scheduler[{}]: Terminating user mode thread {}", Processor::id(), *current_thread);
dbgln_if(SCHEDULER_DEBUG, "Scheduler[{}]: Terminating user mode thread {}", Processor::current_id(), *current_thread);
current_thread->set_state(Thread::Dying);
Processor::current().invoke_scheduler_async();
return;
@ -500,7 +500,7 @@ void Scheduler::timer_tick(const RegisterState& regs)
// time slice and let it run!
current_thread->set_ticks_left(time_slice_for(*current_thread));
current_thread->did_schedule();
dbgln_if(SCHEDULER_DEBUG, "Scheduler[{}]: No other threads ready, give {} another timeslice", Processor::id(), *current_thread);
dbgln_if(SCHEDULER_DEBUG, "Scheduler[{}]: No other threads ready, give {} another timeslice", Processor::current_id(), *current_thread);
return;
}
@ -530,7 +530,7 @@ void Scheduler::notify_finalizer()
void Scheduler::idle_loop(void*)
{
auto& proc = Processor::current();
dbgln("Scheduler[{}]: idle loop running", proc.get_id());
dbgln("Scheduler[{}]: idle loop running", proc.id());
VERIFY(are_interrupts_enabled());
for (;;) {
@ -542,7 +542,7 @@ void Scheduler::idle_loop(void*)
#if SCHEDULE_ON_ALL_PROCESSORS
yield();
#else
if (Processor::id() == 0)
if (Processor::current_id() == 0)
yield();
#endif
}
@ -566,7 +566,7 @@ TotalTimeScheduled Scheduler::get_total_time_scheduled()
void dump_thread_list(bool with_stack_traces)
{
dbgln("Scheduler thread list for processor {}:", Processor::id());
dbgln("Scheduler thread list for processor {}:", Processor::current_id());
auto get_cs = [](Thread& thread) -> u16 {
if (!thread.current_trap())