292 lines
7.7 KiB
ArmAsm
292 lines
7.7 KiB
ArmAsm
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// TITLE("High Frequency Spin Locks")
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//++
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//
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// Copyright (c) 1993 Microsoft Corporation
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// Copyright (c) 1993 Digital Equipment Corporation
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//
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// Module Name:
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//
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// hifreqlk.s
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//
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// Abstract:
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//
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// This module contains storage for high frequency spin locks. Each
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// is allocated to a separate cache line.
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//
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// Author:
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//
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// David N. Cutler (davec) 25-Jun-1993
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// Joe Notarangelo 29-Nov-1993
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//
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// Environment:
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//
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// Kernel mode.
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//
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// Revision History:
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//
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//--
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#include "ksalpha.h"
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//
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// Define alignment for mp and up spinlocks.
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//
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#if defined(NT_UP)
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#define ALIGN
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#else
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#define ALIGN .align 6
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#endif
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//
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// Define spinlock size for mp and up systems.
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//
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#if defined(_AXP64_)
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#define SPIN_LOCK .quad 0
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#else
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#define SPIN_LOCK .long 0
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#endif
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.sdata
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ALIGN
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SPIN_LOCK
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.globl AfdWorkQueueSpinLock
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ALIGN
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AfdWorkQueueSpinLock: // AFD work queue lock
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SPIN_LOCK //
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.globl CcBcbSpinLock
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ALIGN
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CcBcbSpinLock: // cache manager BCB lock
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SPIN_LOCK //
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.globl CcMasterSpinLock
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ALIGN
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CcMasterSpinLock: // cache manager master lock
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SPIN_LOCK //
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.globl CcVacbSpinLock
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ALIGN
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CcVacbSpinLock: // cache manager VACB lock
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SPIN_LOCK //
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.globl CcWorkQueueSpinLock
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ALIGN
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CcWorkQueueSpinLock: // cache manager work queue lock
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SPIN_LOCK //
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.globl ExpResourceSpinLock
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ALIGN
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ExpResourceSpinLock: // resource package lock
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SPIN_LOCK //
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.globl IopCancelSpinLock
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ALIGN
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IopCancelSpinLock: // I/O cancel lock
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SPIN_LOCK //
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.globl IopCompletionLock
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ALIGN
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IopCompletionLock: // I/O completion lock
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SPIN_LOCK //
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.globl IopDatabaseLock
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ALIGN
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IopDatabaseLock: // I/O database lock
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SPIN_LOCK //
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.globl IopVpbSpinLock
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ALIGN
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IopVpbSpinLock: // I/O VPB lock
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SPIN_LOCK //
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.globl IoStatisticsLock
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ALIGN
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IoStatisticsLock: // I/O statistics lock
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SPIN_LOCK //
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.globl KiContextSwapLock
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ALIGN
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KiContextSwapLock: // context swap lock
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SPIN_LOCK //
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.globl KiMasterSequence
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KiMasterSequence: // master sequence number
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.quad 1 //
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.globl KiMasterAsn
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KiMasterAsn: // master ASN number
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.long 0 //
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.globl KiMaximumAsn
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KiMaximumAsn: //
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.long 0 //
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.globl KiTbiaFlushRequest //
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KiTbiaFlushRequest: // TB invalidate all mask
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.long 0xFFFFFFFF //
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.globl KiDispatcherLock
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ALIGN
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KiDispatcherLock: // dispatcher database lock
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SPIN_LOCK //
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.globl KiSynchIrql
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KiSynchIrql: // synchronization IRQL
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.long SYNCH_LEVEL //
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.globl MmPfnLock
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ALIGN
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MmPfnLock: // page frame database lock
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SPIN_LOCK //
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.globl MmChargeCommitmentLock
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ALIGN
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MmChargeCommitmentLock: // charge commitment lock
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SPIN_LOCK //
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.globl NonPagedPoolLock
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ALIGN
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NonPagedPoolLock: // nonpage pool allocation lock
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SPIN_LOCK //
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.globl NtfsStructLock
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ALIGN
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NtfsStructLock: // NTFS structure lock lock
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SPIN_LOCK //
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//
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// IopLookasideIrpFloat - This is the number of IRPs that are currently
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// in progress that were allocated from a lookaside list.
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//
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.globl IopLookasideIrpFloat
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ALIGN
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IopLookasideIrpFloat: //
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.long 0 //
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//
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// IopLookasideIrpLimit - This is the maximum number of IRPs that can be
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// in progress that were allocated from a lookaside list.
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//
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.globl IopLookasideIrpLimit
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IopLookasideIrpLimit: //
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.long 0 //
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//
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// KeTickCount - This is the number of clock ticks that have occurred since
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// the system was booted. This count is used to compute a millisecond
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// tick counter.
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//
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.align 6
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.globl KeTickCount
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KeTickCount: //
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.quad 0 //
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//
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// KeMaximumIncrement - This is the maximum time between clock interrupts
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// in 100ns units that is supported by the host HAL.
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//
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.globl KeMaximumIncrement
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KeMaximumIncrement: //
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.long 0 //
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//
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// KeTimeAdjustment - This is the actual number of 100ns units that are to
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// be added to the system time at each interval timer interupt. This
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// value is copied from KeTimeIncrement at system start up and can be
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// later modified via the set system information service.
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// timer table entries.
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//
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.globl KeTimeAdjustment
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KeTimeAdjustment: //
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.long 0 //
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//
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// KiTickOffset - This is the number of 100ns units remaining before a tick
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// is added to the tick count and the system time is updated.
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//
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.globl KiTickOffset
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KiTickOffset: //
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.long 0 //
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//
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// KiMaximumDpcQueueDepth - This is used to control how many DPCs can be
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// queued before a DPC of medium importance will trigger a dispatch
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// interrupt.
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//
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.globl KiMaximumDpcQueueDepth
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KiMaximumDpcQueueDepth: //
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.long 4 //
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//
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// KiMinimumDpcRate - This is the rate of DPC requests per clock tick that
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// must be exceeded before DPC batching of medium importance DPCs
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// will occur.
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//
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.globl KiMinimumDpcRate
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KiMinimumDpcRate: //
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.long 3 //
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//
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// KiAdjustDpcThreshold - This is the threshold used by the clock interrupt
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// routine to control the rate at which the processor's DPC queue depth
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// is dynamically adjusted.
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//
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.globl KiAdjustDpcThreshold
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KiAdjustDpcThreshold: //
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.long 20 //
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//
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// KiIdealDpcRate - This is used to control the aggressiveness of the DPC
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// rate adjusting algorithm when decrementing the queue depth. As long
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// as the DPC rate for the last tick is greater than this rate, the
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// DPC queue depth will not be decremented.
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//
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.globl KiIdealDpcRate
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KiIdealDpcRate: //
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.long 20 //
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//
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// KiMbTimeStamp - This is the memory barrier time stamp value that is
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// incremented each time a global memory barrier is executed on an
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// MP system.
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//
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#if !defined(NT_UP)
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ALIGN
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.globl KiMbTimeStamp
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KiMbTimeStamp: //
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.long 0 //
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#endif
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//
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// KiTbFlushTimeStamp - This is the TB flush entire time stamp counter.
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//
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ALIGN
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.globl KiTbFlushTimeStamp
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KiTbFlushTimeStamp: //
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.long 0 //
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