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kernel: C++ read_once() and write_once() functions

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max 🍓
2023-03-25 20:37:37 +00:00
parent e615b7dec1
commit e1634de1b4
3 changed files with 87 additions and 72 deletions
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37
arch/x86_64/acpi/local_apic.cpp
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@@ -1,25 +1,26 @@
#include <arch/acpi/local_apic.hpp>
#include <socks/vm.h>
#include <socks/compiler.h>
#define LAPIC_REG_EOI 0xB0
namespace arch::acpi {
local_apic::local_apic(uint32_t *base) : base_(base)
{
}
uint32_t local_apic::read(uint32_t reg)
{
return *(volatile uint32_t *)((char *)base_ + reg);
}
void local_apic::write(uint32_t reg, uint32_t val)
{
*(volatile uint32_t *)((char *)base_ + reg) = val;
}
void local_apic::ack()
{
*(volatile uint32_t *)((char *)base_ + LAPIC_REG_EOI) = 0;
}
local_apic::local_apic(uint32_t *base) : base_(base)
{
}
uint32_t local_apic::read(uint32_t reg)
{
return read_once(base_ + (reg >> 2));
}
void local_apic::write(uint32_t reg, uint32_t val)
{
write_once(base_ + (reg >> 2), val);
}
void local_apic::ack()
{
write(LAPIC_REG_EOI, 0);
}
}