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kern: greatly improve codegen for atomics, scheduler

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This commit is contained in:
Michael Scire
2021-01-08 02:13:36 -08:00
parent f051f707ed
commit 4aa18b06e8
19 changed files with 67 additions and 46 deletions
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20
libraries/libmesosphere/include/mesosphere/kern_k_dynamic_slab_heap.hpp
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@@ -49,9 +49,9 @@ namespace ams::kern {
constexpr KVirtualAddress GetAddress() const { return m_address; }
constexpr size_t GetSize() const { return m_size; }
constexpr size_t GetUsed() const { return m_used; }
constexpr size_t GetPeak() const { return m_peak; }
constexpr size_t GetCount() const { return m_count; }
constexpr size_t GetUsed() const { return m_used.load(); }
constexpr size_t GetPeak() const { return m_peak.load(); }
constexpr size_t GetCount() const { return m_count.load(); }
constexpr bool IsInRange(KVirtualAddress addr) const {
return this->GetAddress() <= addr && addr <= this->GetAddress() + this->GetSize() - 1;
@@ -65,7 +65,7 @@ namespace ams::kern {
/* Free blocks to memory. */
u8 *cur = GetPointer<u8>(m_address + m_size);
for (size_t i = 0; i < m_count; i++) {
for (size_t i = 0; i < sz / sizeof(T); i++) {
cur -= sizeof(T);
this->GetImpl()->Free(cur);
}
@@ -84,13 +84,13 @@ namespace ams::kern {
this->Initialize(page_allocator);
/* Allocate until we have the correct number of objects. */
while (m_count < num_objects) {
while (m_count.load() < num_objects) {
auto *allocated = reinterpret_cast<T *>(m_page_allocator->Allocate());
MESOSPHERE_ABORT_UNLESS(allocated != nullptr);
for (size_t i = 0; i < sizeof(PageBuffer) / sizeof(T); i++) {
this->GetImpl()->Free(allocated + i);
}
m_count += sizeof(PageBuffer) / sizeof(T);
m_count.fetch_add(sizeof(PageBuffer) / sizeof(T));
}
}
@@ -106,7 +106,7 @@ namespace ams::kern {
for (size_t i = 1; i < sizeof(PageBuffer) / sizeof(T); i++) {
this->GetImpl()->Free(allocated + i);
}
m_count += sizeof(PageBuffer) / sizeof(T);
m_count.fetch_add(sizeof(PageBuffer) / sizeof(T));
}
}
}
@@ -116,8 +116,8 @@ namespace ams::kern {
new (allocated) T();
/* Update our tracking. */
size_t used = ++m_used;
size_t peak = m_peak;
size_t used = m_used.fetch_add(1) + 1;
size_t peak = m_peak.load();
while (peak < used) {
if (m_peak.compare_exchange_weak(peak, used, std::memory_order_relaxed)) {
break;
@@ -130,7 +130,7 @@ namespace ams::kern {
void Free(T *t) {
this->GetImpl()->Free(t);
--m_used;
m_used.fetch_sub(1);
}
};