# Subsystem: headers_arch_x86

## headers/arch/x86/cpu_setup.h
- Doc: per-CPU control-register setup shared by the BSP (kmain)
- Layer: infrastructure
- Language: h
- Symbols:
  - `cpu_enable_caches` (function, line 30) `static inline void cpu_enable_caches(void)`
  - `ARCH_X86_CPU_SETUP_H` (macro, line 10) `#define ARCH_X86_CPU_SETUP_H`
- Depends on: `headers/arch/x86/boot/bootdefs.h`
- Imported by: `kernel.c`, `smp.c`

## headers/arch/x86/hal_io.h
- Doc: Docstring: x86 port I/O hardware abstraction contract.
- Layer: utility
- Language: h
- Symbols:
  - `hal_mmio_write32` (function, line 123) `static inline void hal_mmio_write32(volatile unsigned *addr, unsigned val)`
  - `hal_mmio_read64` (function, line 128) `static inline unsigned long long hal_mmio_read64(const volatile unsigned long long *addr)`
  - `hal_mmio_write64` (function, line 133) `static inline void hal_mmio_write64(volatile unsigned long long *addr,
                          ...`
  - `hal_mmio_read16` (function, line 139) `static inline unsigned short hal_mmio_read16(const volatile unsigned short *addr)`
  - `hal_mmio_write16` (function, line 144) `static inline void hal_mmio_write16(volatile unsigned short *addr,
                              ...`
  - `hal_mmio_read8` (function, line 150) `static inline unsigned char hal_mmio_read8(const volatile unsigned char *addr)`
  - `hal_mmio_write8` (function, line 155) `static inline void hal_mmio_write8(volatile unsigned char *addr,
                                ...`
  - `hal_mmio_wmb` (function, line 161) `static inline void hal_mmio_wmb(void)`
  - `hal_mmio_rmb` (function, line 166) `static inline void hal_mmio_rmb(void)`
  - `hal_mmio_mb` (function, line 171) `static inline void hal_mmio_mb(void)`
  - `hal_outb` (function, line 189) `static inline void hal_outb(unsigned short port, unsigned char val)`
  - `hal_inb` (function, line 196) `static inline unsigned char hal_inb(unsigned short port)`
  - `hal_outw` (function, line 202) `static inline void hal_outw(unsigned short port, unsigned short val)`
  - `hal_inw` (function, line 209) `static inline unsigned short hal_inw(unsigned short port)`
  - `hal_lapic_eoi` (function, line 215) `static inline void hal_lapic_eoi(void)`
  - `hal_pic_eoi` (function, line 220) `static inline void hal_pic_eoi(int irq)`
  - `hal_outb` (function, line 230) `static inline void hal_outb(unsigned short port, unsigned char val)`
  - `hal_inb` (function, line 235) `static inline unsigned char hal_inb(unsigned short port)`
  - `hal_outw` (function, line 242) `static inline void hal_outw(unsigned short port, unsigned short val)`
  - `hal_inw` (function, line 247) `static inline unsigned short hal_inw(unsigned short port)`
  - `hal_lapic_eoi` (function, line 254) `static inline void hal_lapic_eoi(void)`
  - `hal_pic_eoi` (function, line 259) `static inline void hal_pic_eoi(int irq)`
  - `hal_io_stub_writes` (variable, line 178) `extern unsigned hal_io_stub_writes;`
  - `hal_io_stub_last_port` (variable, line 180) `extern unsigned hal_io_stub_last_port;`
  - `hal_io_stub_last_val` (variable, line 182) `extern unsigned hal_io_stub_last_val;`
  - `hal_io_stub_lapic_eois` (variable, line 184) `extern unsigned hal_io_stub_lapic_eois;`
  - `hal_io_stub_read_val` (variable, line 186) `extern unsigned char hal_io_stub_read_val;`
  - `HAL_IO_H` (macro, line 13) `#define HAL_IO_H`
  - `HAL_PIC1_CMD` (macro, line 16) `#define HAL_PIC1_CMD`
  - `HAL_PIC1_DATA` (macro, line 18) `#define HAL_PIC1_DATA`
  - `HAL_PIC2_CMD` (macro, line 20) `#define HAL_PIC2_CMD`
  - `HAL_PIC2_DATA` (macro, line 22) `#define HAL_PIC2_DATA`
  - `HAL_PIC_EOI` (macro, line 24) `#define HAL_PIC_EOI`
  - `HAL_PIT_CMD` (macro, line 27) `#define HAL_PIT_CMD`
  - `HAL_PIT_CH0` (macro, line 29) `#define HAL_PIT_CH0`
  - `HAL_PS2_STATUS` (macro, line 32) `#define HAL_PS2_STATUS`
  - `HAL_PS2_DATA` (macro, line 34) `#define HAL_PS2_DATA`
  - `HAL_PS2_MOUSE_OBF` (macro, line 36) `#define HAL_PS2_MOUSE_OBF`
  - `HAL_PS2_IBF_EMPTY` (macro, line 38) `#define HAL_PS2_IBF_EMPTY`
  - `HAL_PS2_OBF_FULL` (macro, line 40) `#define HAL_PS2_OBF_FULL`
  - `HAL_PS2_CMD_WRITE_MOUSE` (macro, line 42) `#define HAL_PS2_CMD_WRITE_MOUSE`
  - `HAL_PS2_CMD_ENABLE_AUX` (macro, line 44) `#define HAL_PS2_CMD_ENABLE_AUX`
  - `HAL_PS2_CMD_DISABLE_AUX` (macro, line 46) `#define HAL_PS2_CMD_DISABLE_AUX`
  - `HAL_PS2_CMD_ENABLE_KBD` (macro, line 48) `#define HAL_PS2_CMD_ENABLE_KBD`
  - `HAL_PS2_CMD_DISABLE_KBD` (macro, line 50) `#define HAL_PS2_CMD_DISABLE_KBD`
  - `HAL_PS2_CMD_READ_CONFIG` (macro, line 52) `#define HAL_PS2_CMD_READ_CONFIG`
  - `HAL_PS2_CMD_WRITE_CONFIG` (macro, line 54) `#define HAL_PS2_CMD_WRITE_CONFIG`
  - `HAL_PS2_CONFIG_IRQ1` (macro, line 56) `#define HAL_PS2_CONFIG_IRQ1`
  - `HAL_PS2_CONFIG_IRQ12` (macro, line 58) `#define HAL_PS2_CONFIG_IRQ12`
  - `HAL_PS2_CONFIG_DISABLE_KBD` (macro, line 60) `#define HAL_PS2_CONFIG_DISABLE_KBD`
  - `HAL_PS2_CONFIG_DISABLE_AUX` (macro, line 62) `#define HAL_PS2_CONFIG_DISABLE_AUX`
  - `HAL_PS2_CONFIG_TRANSLATE` (macro, line 64) `#define HAL_PS2_CONFIG_TRANSLATE`
  - `HAL_MOUSE_CMD_RESET` (macro, line 66) `#define HAL_MOUSE_CMD_RESET`
  - `HAL_MOUSE_CMD_SET_RATE` (macro, line 68) `#define HAL_MOUSE_CMD_SET_RATE`
  - `HAL_MOUSE_CMD_GET_ID` (macro, line 70) `#define HAL_MOUSE_CMD_GET_ID`
  - `HAL_MOUSE_CMD_DEFAULTS` (macro, line 72) `#define HAL_MOUSE_CMD_DEFAULTS`
  - `HAL_MOUSE_CMD_ENABLE` (macro, line 74) `#define HAL_MOUSE_CMD_ENABLE`
  - `HAL_MOUSE_CMD_DISABLE` (macro, line 76) `#define HAL_MOUSE_CMD_DISABLE`
  - `HAL_MOUSE_RATE_KNOCK_200` (macro, line 78) `#define HAL_MOUSE_RATE_KNOCK_200`
  - `HAL_MOUSE_RATE_KNOCK_100` (macro, line 80) `#define HAL_MOUSE_RATE_KNOCK_100`
  - `HAL_MOUSE_RATE_KNOCK_80` (macro, line 82) `#define HAL_MOUSE_RATE_KNOCK_80`
  - `HAL_MOUSE_ID_INTELLI` (macro, line 84) `#define HAL_MOUSE_ID_INTELLI`
  - `HAL_MOUSE_HW_TIMEOUT` (macro, line 86) `#define HAL_MOUSE_HW_TIMEOUT`
  - `HAL_MOUSE_SYNC_BIT` (macro, line 89) `#define HAL_MOUSE_SYNC_BIT`
  - `HAL_MOUSE_OVF_BITS` (macro, line 91) `#define HAL_MOUSE_OVF_BITS`
  - `HAL_MOUSE_BUTTON_MASK` (macro, line 93) `#define HAL_MOUSE_BUTTON_MASK`
  - `HAL_MOUSE_PACKET_LEN` (macro, line 95) `#define HAL_MOUSE_PACKET_LEN`
  - `HAL_MOUSE_SCALE` (macro, line 97) `#define HAL_MOUSE_SCALE`
  - `HAL_LAPIC_EOI_ADDR` (macro, line 100) `#define HAL_LAPIC_EOI_ADDR`
- Imported by: `drivers/kbd.c`, `drivers/mouse.c`, `drivers/nvme.c`, `drivers/usbhid.c`, `drivers/xhci.c`, `kernel/sched.c`, `kernel/syscalls.c`, `tests/test_hal_io.c`

## headers/arch/x86/msr.h
- Doc: Model-Specific Register access for x86-64.
- Layer: utility
- Language: h
- Symbols:
  - `wrmsr` (function, line 8) `static inline void wrmsr(unsigned msr, unsigned long val)`
  - `rdmsr` (function, line 13) `static inline unsigned long rdmsr(unsigned msr)`
  - `ARCH_X86_MSR_H` (macro, line 2) `#define ARCH_X86_MSR_H`
  - `MSR_STAR` (macro, line 19) `#define MSR_STAR`
  - `MSR_LSTAR` (macro, line 20) `#define MSR_LSTAR`
  - `MSR_SFMASK` (macro, line 21) `#define MSR_SFMASK`
  - `MSR_FSBASE` (macro, line 22) `#define MSR_FSBASE`
  - `MSR_GSBASE` (macro, line 23) `#define MSR_GSBASE`
  - `MSR_KERNEL_GS_BASE` (macro, line 24) `#define MSR_KERNEL_GS_BASE`
- Imported by: `kernel.c`, `kernel/exec.c`, `kernel/mm/paging.c`, `kernel/sched.c`, `kernel/spawn.c`, `kernel/syscalls.c`, `smp.c`