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[Kernel] Implement per-process TLS allocation

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Previous global TLS bitmap was shared across all processes. Now
per-process TLS bitmaps stored X_KPROCESS structures which should
better match Xbox360 architecture.
This commit is contained in:
Herman S.
2025-10-20 11:16:09 +09:00
parent 2590f03bc1
commit c17a3b19fb
3 changed files with 133 additions and 30 deletions
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8
src/xenia/kernel/kernel_state.h
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@@ -80,7 +80,7 @@ struct X_KPROCESS {
uint8_t is_terminating;
// one of X_PROCTYPE_
uint8_t process_type;
xe::be<uint32_t> bitmap[8];
xe::be<uint32_t> tls_slot_bitmap[8];
xe::be<uint32_t> unk_50;
X_LIST_ENTRY unk_54;
xe::be<uint32_t> unk_5C;
@@ -140,6 +140,7 @@ struct KernelGuestGlobals {
// this lock is only used in some Ob functions. It's odd that it is used at
// all, as each table already has its own spinlock.
X_KSPINLOCK ob_lock;
X_KSPINLOCK tls_lock; // protects per-process TLS bitmap allocations
// if LLE emulating Xam, this is needed or you get an immediate freeze
X_KEVENT UsbdBootEnumerationDoneEvent;
@@ -219,8 +220,8 @@ class KernelState {
return kernel_guest_globals_ + offsetof(KernelGuestGlobals, idle_process);
}
uint32_t AllocateTLS();
void FreeTLS(uint32_t slot);
uint32_t AllocateTLS(cpu::ppc::PPCContext* context);
void FreeTLS(cpu::ppc::PPCContext* context, uint32_t slot);
void RegisterTitleTerminateNotification(uint32_t routine, uint32_t priority);
void RemoveTitleTerminateNotification(uint32_t routine);
@@ -382,7 +383,6 @@ class KernelState {
std::condition_variable_any dispatch_cond_;
std::list<std::function<void()>> dispatch_queue_;
BitMap tls_bitmap_;
uint32_t ke_timestamp_bundle_ptr_ = 0;
std::unique_ptr<xe::threading::HighResolutionTimer> timestamp_timer_;
uint32_t quantum_timer_counter_ = 0;