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feat: further kernel power and power optimizations

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daniel
2026-04-21 20:51:12 +02:00
parent 7d6f001659
commit 38b1f8a7ef
31 changed files with 895 additions and 52 deletions
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kernel/src/Hal/Apic/Apic.cpp
+17
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@@ -14,6 +14,8 @@ using namespace Kt;
namespace Hal {
namespace LocalApic {
static volatile uint32_t* g_apicBase = nullptr;
static constexpr uint32_t ICR_DELIVERY_STATUS = (1 << 12);
static constexpr uint32_t ICR_LEVEL_ASSERT = (1 << 14);
static inline uint64_t ReadMSR(uint32_t msr) {
uint32_t lo, hi;
@@ -113,6 +115,21 @@ namespace Hal {
WriteRegister(REG_EOI, 0);
}
void SendFixedIpi(uint32_t apicId, uint8_t vector) {
if (g_apicBase == nullptr) return;
while (ReadRegister(REG_ICR_LOW) & ICR_DELIVERY_STATUS) {
asm volatile("pause");
}
WriteRegister(REG_ICR_HIGH, apicId << 24);
WriteRegister(REG_ICR_LOW, (uint32_t)vector | ICR_LEVEL_ASSERT);
while (ReadRegister(REG_ICR_LOW) & ICR_DELIVERY_STATUS) {
asm volatile("pause");
}
}
uint32_t GetId() {
return (ReadRegister(REG_ID) >> 24) & 0xFF;
}