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Kernel: Replace HPET CriticalScope with SpinLock

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Bananymous
2024-02-28 23:06:48 +02:00
parent 18253b6966
commit 682de62c57
2 changed files with 17 additions and 12 deletions
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26
kernel/kernel/Timer/HPET.cpp
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@@ -244,7 +244,7 @@ namespace Kernel
if (m_is_64bit)
return regs.main_counter.full;
CriticalScope _;
SpinLockGuard _(m_lock);
uint32_t current_low = regs.main_counter.low;
uint32_t wraps = m_32bit_wraps;
if (current_low < (uint32_t)m_last_ticks)
@@ -256,19 +256,21 @@ namespace Kernel
{
auto& regs = registers();
uint64_t current_ticks;
if (m_is_64bit)
current_ticks = regs.main_counter.full;
else
{
uint32_t current_low = regs.main_counter.low;
if (current_low < (uint32_t)m_last_ticks)
m_32bit_wraps++;
current_ticks = ((uint64_t)m_32bit_wraps << 32) | current_low;
}
SpinLockGuard _(m_lock);
m_last_ticks = current_ticks;
uint64_t current_ticks;
if (m_is_64bit)
current_ticks = regs.main_counter.full;
else
{
uint32_t current_low = regs.main_counter.low;
if (current_low < (uint32_t)m_last_ticks)
m_32bit_wraps++;
current_ticks = ((uint64_t)m_32bit_wraps << 32) | current_low;
}
m_last_ticks = current_ticks;
}
Scheduler::get().timer_reschedule();
}