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Several changes for timestamp bundle:

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Fully defined the structure.
Single copy of it + single timer across all modules, managing it is now the responsibility of KernelState.

add global_critical_region::PrepareToAcquire, which uses Prefetchw on the global crit. We now know we can use Prefetchw on all cpus that have AVX.
add  KeQueryInterruptTime, which is used by some dashboards.

add threading::NanoSleep
This commit is contained in:
chss95cs@gmail.com
2023-04-16 10:08:01 -04:00
parent 12c9135843
commit ab21e1e0f0
15 changed files with 147 additions and 54 deletions
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12
src/xenia/kernel/xboxkrnl/xboxkrnl_misc.cc
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@@ -22,7 +22,9 @@ namespace xboxkrnl {
void KeEnableFpuExceptions_entry(
const ppc_context_t& ctx) { // dword_t enabled) {
// TODO(benvanik): can we do anything about exceptions?
// theres a lot more thats supposed to happen here, the floating point state has to be saved to kthread, the irql changes, the machine state register is changed to enable exceptions
// theres a lot more thats supposed to happen here, the floating point state
// has to be saved to kthread, the irql changes, the machine state register is
// changed to enable exceptions
X_KTHREAD* kthread = ctx->TranslateVirtual<X_KTHREAD*>(
ctx->TranslateVirtualGPR<X_KPCR*>(ctx->r[13])->current_thread);
@@ -117,7 +119,15 @@ void KeSaveFloatingPointState_entry(ppc_context_t& ctx) {
DECLARE_XBOXKRNL_EXPORT1(KeSaveFloatingPointState, kNone, kImplemented);
#endif
static qword_result_t KeQueryInterruptTime_entry(const ppc_context_t& ctx) {
auto kstate = ctx->kernel_state;
uint32_t ts_bundle = kstate->GetKeTimestampBundle();
X_TIME_STAMP_BUNDLE* bundle =
ctx->TranslateVirtual<X_TIME_STAMP_BUNDLE*>(ts_bundle);
return xe::load_and_swap<uint64_t>(&bundle->interrupt_time);
}
DECLARE_XBOXKRNL_EXPORT1(KeQueryInterruptTime, kNone, kImplemented);
} // namespace xboxkrnl
} // namespace kernel
} // namespace xe