spinlock.c File Reference

#include <hal.h>
#include <debug.h>
#include <internal/spinlock.h>

Include dependency graph for spinlock.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
VOID NTAPI	HalpAcquireCmosSpinLock (VOID)
VOID NTAPI	HalpReleaseCmosSpinLock (VOID)

Variables
ULONG_PTR	HalpSystemHardwareFlags
KSPIN_LOCK	HalpSystemHardwareLock

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 14 of file spinlock.c.

Function Documentation

HalpAcquireCmosSpinLock()

VOID NTAPI HalpAcquireCmosSpinLock

(

VOID

)

Definition at line 226 of file spinlock.c.

{
    ULONG_PTR Flags;
 
    /* Get flags and disable interrupts */
    Flags = __readeflags();
    _disable();
 
    /* Acquire the lock */
    KxAcquireSpinLock(&HalpSystemHardwareLock);
 
    /* We have the lock, save the flags now */
    HalpSystemHardwareFlags = Flags;
}

Referenced by HalGetEnvironmentVariable(), HalMakeBeep(), HalpGetCmosData(), HalpInitializeClock(), HalpReboot(), HalpSetCmosData(), HalQueryRealTimeClock(), HalSetEnvironmentVariable(), HalSetRealTimeClock(), HalStartProfileInterrupt(), HalStopProfileInterrupt(), and RtcSetClockRate().

HalpReleaseCmosSpinLock()

VOID NTAPI HalpReleaseCmosSpinLock

(

VOID

)

Definition at line 243 of file spinlock.c.

{
    ULONG_PTR Flags;
 
    /* Get the flags */
    Flags = HalpSystemHardwareFlags;
 
    /* Release the lock */
    KxReleaseSpinLock(&HalpSystemHardwareLock);
 
    /* Restore the flags */
    __writeeflags(Flags);
}

Referenced by HalGetEnvironmentVariable(), HalMakeBeep(), HalpGetCmosData(), HalpInitializeClock(), HalpSetCmosData(), HalQueryRealTimeClock(), HalSetEnvironmentVariable(), HalSetRealTimeClock(), HalStartProfileInterrupt(), HalStopProfileInterrupt(), and RtcSetClockRate().

Variable Documentation

HalpSystemHardwareFlags

ULONG_PTR HalpSystemHardwareFlags

Definition at line 24 of file spinlock.c.

Referenced by HalpAcquireCmosSpinLock(), and HalpReleaseCmosSpinLock().

HalpSystemHardwareLock

KSPIN_LOCK HalpSystemHardwareLock

Definition at line 25 of file spinlock.c.

Referenced by HalInitSystem(), HalpAcquireCmosSpinLock(), and HalpReleaseCmosSpinLock().