smp.c File Reference

#include <ubixos/smp.h>
#include <ubixos/spinlock.h>
#include <ubixos/kpanic.h>
#include <lib/kprintf.h>
#include <lib/string.h>
#include <sys/io.h>

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Data Structures
struct	gdt_descr
Functions
void	ap_trampoline_end ()
void	ap_trampoline_start ()
void	apicMagic (void)
static unsigned int	apicRead (address)
static void	apicWrite (unsigned int address, unsigned int data)
	asm (".globl cpuid \n""cpuid: \n"" pushl %ebx \n"" pushl %edi \n"" movl 12(%esp),%eax \n"" movl 16(%esp),%edi \n"" cpuid \n"" movl %eax,0(%edi) \n"" movl %ebx,4(%edi) \n"" movl %ecx,8(%edi) \n"" movl %edx,12(%edi) \n"" popl %edi \n"" popl %ebx \n"" ret \n")
void	c_ap_boot (void)
void	cpu0_thread (void)
void	cpu1_thread (void)
void	cpu2_thread (void)
void	cpu3_thread (void)
void	cpuidDetect ()
uInt8	cpuInfo ()
static void	GDT_fixer ()
static __inline__ uInt32	getDr3 (void)
uInt32	getEflags ()
uInt8	kernel_function (void)
static __inline__ void	setDr3 (void *dr3)
void	setEflags (uInt32 eflags)
void	smpInit ()
Variables
static spinLock_t	bkl = SPIN_LOCK_INITIALIZER
cpuinfo_t	cpuinfo [8]
static spinLock_t	cpuInfoLock = SPIN_LOCK_INITIALIZER
static uInt32	cpus = 0
static spinLock_t	initSpinLock = SPIN_LOCK_INITIALIZER
uInt8 *	vram = (uInt8 *)0xB8000

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Function Documentation

void ap_trampoline_end

(

)

Referenced by apicMagic().

void ap_trampoline_start

(

)

void apicMagic

(

void

)

Definition at line 234 of file smp.c.

References ap_trampoline_end(), ap_trampoline_start, apicRead(), apicWrite(), kprintf(), and memcpy().

Referenced by smpInit().

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static unsigned int apicRead

(

address

)

[inline, static]

Definition at line 45 of file smp.c.

Referenced by apicMagic(), and cpuInfo().

static void apicWrite	(	unsigned int	address,
		unsigned int	data
	)			[inline, static]

Definition at line 49 of file smp.c.

Referenced by apicMagic().

asm	(	".globl cpuid \n""cpuid: \n"" pushl %ebx \n"" pushl %edi \n"" movl	12(%esp),
		%eax\n""movl	16(%esp),
		%edi\n""cpuid\n""movl%	eax,
		0(%edi)\n""movl%	ebx,
		4(%edi)\n""movl%	ecx,
		8(%edi)\n""movl%	edx,
		12(%edi)\n""popl%edi\n""popl%ebx\n""ret\n"
	)

void c_ap_boot

(

void

)

Definition at line 137 of file smp.c.

References cpu1_thread(), cpu2_thread(), cpu3_thread(), cpuInfo(), initSpinLock, outportByte(), spinLockLocked(), and xe9.

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void cpu0_thread

(

void

)

Definition at line 97 of file smp.c.

References kernel_function(), and vram.

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void cpu1_thread

(

void

)

Definition at line 103 of file smp.c.

References kernel_function(), and vram.

Referenced by c_ap_boot().

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void cpu2_thread

(

void

)

Definition at line 109 of file smp.c.

References kernel_function(), and vram.

Referenced by c_ap_boot().

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void cpu3_thread

(

void

)

Definition at line 115 of file smp.c.

References kernel_function(), and vram.

Referenced by c_ap_boot().

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void cpuidDetect

(

)

Definition at line 173 of file smp.c.

References getEflags(), kpanic(), and setEflags().

Referenced by smpInit().

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uInt8 cpuInfo

(

)

Definition at line 182 of file smp.c.

References cpuinfo_t::apic_id, cpuinfo_t::apic_ver, apicRead(), cpuinfo_t::brand, cpuid(), cpuinfo, cpuInfoLock, cpus, cpuinfo_t::feature, getEflags(), cpuinfo_t::id, cpuinfo_t::ident, kpanic(), cpuinfo_t::max, cpuinfo_t::ok, setDr3(), setEflags(), cpuinfo_t::signature, spinLock(), spinUnlock(), x20, and x30.

Referenced by c_ap_boot(), and smpInit().

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static void GDT_fixer

(

)

[static]

Definition at line 69 of file smp.c.

References gdt_descr::limit.

Referenced by smpInit().

static __inline__ uInt32 getDr3

(

void

)

[static]

Definition at line 58 of file smp.c.

Referenced by kernel_function().

uInt32 getEflags

(

)

Definition at line 252 of file smp.c.

Referenced by cpuidDetect(), and cpuInfo().

uInt8 kernel_function

(

void

)

Definition at line 123 of file smp.c.

References getDr3(), cpuinfo_t::id, spinLock(), and spinUnlock().

Referenced by cpu0_thread(), cpu1_thread(), cpu2_thread(), and cpu3_thread().

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static __inline__ void setDr3

(

void *

dr3

)

[static]

Definition at line 53 of file smp.c.

Referenced by cpuInfo().

void setEflags

(

uInt32

eflags

)

Definition at line 262 of file smp.c.

Referenced by cpuidDetect(), and cpuInfo().

void smpInit

(

)

Definition at line 161 of file smp.c.

References apicMagic(), cpuidDetect(), cpuInfo(), GDT_fixer(), initSpinLock, spinLock(), and spinUnlock().

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Variable Documentation

spinLock_t bkl = SPIN_LOCK_INITIALIZER [static]

Definition at line 122 of file smp.c.

struct cpuinfo_t cpuinfo[8]

Definition at line 40 of file smp.c.

Referenced by cpuInfo().

spinLock_t cpuInfoLock = SPIN_LOCK_INITIALIZER [static]

Definition at line 38 of file smp.c.

Referenced by cpuInfo().

uInt32 cpus = 0 [static]

Definition at line 39 of file smp.c.

Referenced by cpuInfo().

spinLock_t initSpinLock = SPIN_LOCK_INITIALIZER [static]

Definition at line 37 of file smp.c.

Referenced by c_ap_boot(), and smpInit().

uInt8* vram = (uInt8 *)0xB8000

Definition at line 43 of file smp.c.

Referenced by cpu0_thread(), cpu1_thread(), cpu2_thread(), and cpu3_thread().

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