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acpi: calibrate local APIC timer on BSP

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This commit is contained in:
max 🍓
2023-03-28 21:38:47 +01:00
parent 9828f35d36
commit e0e6f4a9ae
8 changed files with 133 additions and 9 deletions
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2
arch/x86_64/include/arch/acpi/io_apic.hpp
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@@ -33,6 +33,8 @@ namespace arch::acpi {
kern_status_t read_irq(unsigned int index, irq_entry &entry);
void write_irq(unsigned int index, const irq_entry &entry);
void map_irq(unsigned int src, unsigned int dest);
void mask_irq(unsigned int vec);
void unmask_irq(unsigned int vec, unsigned int dest_cpu = (unsigned int)-1);
};
}

11
arch/x86_64/include/arch/acpi/local_apic.hpp
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@@ -3,11 +3,22 @@
#include <stdint.h>
#define APIC_LVT_INT_MASKED 0x10000
#define APIC_LVT_TIMER_MODE_PERIODIC 0x20000
namespace arch::acpi {
class local_apic {
uint32_t *base_ = nullptr;
public:
enum {
EOI = 0xB0,
LVT_TIMER = 320,
TIMER_INITCOUNT = 0x380,
TIMER_CURCOUNT = 0x390,
TIMER_DIV = 0x3E0,
};
local_apic(uint32_t *base);
uint32_t read(uint32_t reg);

5
arch/x86_64/include/socks/machine/cpu.h
View File

@@ -9,6 +9,9 @@ extern "C" {
#endif
#define ml_cpu_block_get_id(p) ((p)->c_cpu_id)
#define ml_cpu_block_get_data(p) ((p)->c_data)
struct cpu_data;
typedef struct ml_cpu_block {
struct ml_cpu_block *c_this;
@@ -18,6 +21,8 @@ typedef struct ml_cpu_block {
struct idt_ptr c_idt_ptr;
unsigned int c_cpu_id;
struct cpu_data *c_data;
} ml_cpu_block;
#define ml_cpu_pause() __asm__ __volatile__("hlt")