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kern: implement smmu init

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This commit is contained in:
Michael Scire 2020-02-15 00:00:35 -08:00
parent 2c496e94d5
commit 30d6b359f9
21 changed files with 1368 additions and 36 deletions
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50
libraries/libmesosphere/source/kern_k_thread.cpp
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@ -255,6 +255,56 @@ namespace ams::kern {
MESOSPHERE_TODO_IMPLEMENT();
}
void KThread::DisableCoreMigration() {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(this == GetCurrentThreadPointer());
KScopedSchedulerLock sl;
MESOSPHERE_ASSERT(this->num_core_migration_disables >= 0);
if ((this->num_core_migration_disables++) == 0) {
/* Save our ideal state to restore when we can migrate again. */
this->original_ideal_core_id = this->ideal_core_id;
this->original_affinity_mask = this->affinity_mask;
/* Bind outselves to this core. */
const s32 active_core = this->GetActiveCore();
this->ideal_core_id = active_core;
this->affinity_mask.SetAffinityMask(1ul << active_core);
if (this->affinity_mask.GetAffinityMask() != this->original_affinity_mask.GetAffinityMask()) {
KScheduler::OnThreadAffinityMaskChanged(this, this->original_affinity_mask, active_core);
}
}
}
void KThread::EnableCoreMigration() {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(this == GetCurrentThreadPointer());
KScopedSchedulerLock sl;
MESOSPHERE_ASSERT(this->num_core_migration_disables > 0);
if ((--this->num_core_migration_disables) == 0) {
const KAffinityMask old_mask = this->affinity_mask;
/* Restore our ideals. */
this->ideal_core_id = this->original_ideal_core_id;
this->original_affinity_mask = this->affinity_mask;
if (this->affinity_mask.GetAffinityMask() != old_mask.GetAffinityMask()) {
const s32 active_core = this->GetActiveCore();
if (!this->affinity_mask.GetAffinity(active_core)) {
if (this->ideal_core_id >= 0) {
this->SetActiveCore(this->ideal_core_id);
} else {
this->SetActiveCore(BITSIZEOF(unsigned long long) - 1 - __builtin_clzll(this->affinity_mask.GetAffinityMask()));
}
}
KScheduler::OnThreadAffinityMaskChanged(this, old_mask, active_core);
}
}
}
Result KThread::SetPriorityToIdle() {
MESOSPHERE_ASSERT_THIS();