278 lines
5.8 KiB
ArmAsm
278 lines
5.8 KiB
ArmAsm
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// TITLE("Flush Translation Buffers")
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//++
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//
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// Copyright (c) 1992 Digital Equipment Corporation
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//
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// Module Name:
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//
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// tb.s
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//
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// Abstract:
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//
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// This module implements the code to flush the tbs on the current
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// processor.
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//
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// Author:
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//
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// Joe Notarangelo 21-apr-1992
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//
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// Environment:
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//
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// Kernel mode only.
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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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SBTTL("Flush All Translation Buffers")
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//++
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//
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// VOID
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// KiFlushEntireTb(
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// )
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//
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// Routine Description:
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//
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// This function flushes the data and instruction tbs on the current
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// processor. All entries are flushed with the exception of any entries
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// that are fixed in the tb (either in hdw or via sfw).
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//
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// Arguments:
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//
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// None.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KiFlushEntireTb)
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TB_INVALIDATE_ALL // invalidate all tb entries
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ret zero, (ra) // return
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.end KiFlushEntireTb
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SBTTL("Flush All Translation Buffers")
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//++
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//
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// VOID
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// KeFlushCurrentTb(
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// )
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//
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// Routine Description:
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//
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// This function flushes the data and instruction tbs on the current
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// processor. All entries are flushed with the exception of any entries
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// that are fixed in the tb (either in hdw or via sfw).
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//
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// Arguments:
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//
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// None.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KeFlushCurrentTb)
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TB_INVALIDATE_ALL // invalidate all tb entries
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ret zero, (ra) // return
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.end KeFlushCurrentTb
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SBTTL("Flush Single 32-bit Translation Buffer")
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//++
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//
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// VOID
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// KiFlushSingleTb
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// IN BOOLEAN Invalid,
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// IN PVOID Virtual
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//
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// Routine Description:
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//
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// This function flushes a single entry from both the instruction
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// and data translation buffers. Note: it may flush more that just
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// the single entry.
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//
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// Arguments:
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//
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// Invalid (a0) - Supplies a boolean variable that determines the reason that
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// that the TB entry is being flushed.
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//
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// Virtual (a1) - Supplies the virtual address of the entry that is to be
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// flushed from the buffers.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KiFlushSingleTb)
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bis a1, zero, a0 // set virtual address to flush
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TB_INVALIDATE_SINGLE // flush va(a0) from tbs
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ret zero, (ra) // return
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.end KiFlushSingleTb
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SBTTL("Flush Single 64-bit Translation Buffer")
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//++
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//
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// VOID
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// KiFlushSingleTb64
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// IN BOOLEAN Invalid,
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// IN PVOID Virtual
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//
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// Routine Description:
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//
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// This function flushes a single entry from both the instruction
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// and data translation buffers. Note: it may flush more that just
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// the single entry.
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//
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// Arguments:
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//
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// Invalid (a0) - Supplies a boolean variable that determines the reason that
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// that the TB entry is being flushed.
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//
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// Virtual (a1) - Supplies the virtual page number of the entry that is to be
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// flushed from the buffers.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KiFlushSingleTb64)
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bis a1, zero, a0 // a0 = va to flush
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TB_INVALIDATE_SINGLE64 // flush va(a0) from tbs
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ret zero, (ra) // return
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.end KiFlushSingleTb64
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SBTTL("Flush Multiple 32-bit Translation Buffer")
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//++
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//
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// VOID
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// KiFlushMultipleTb (
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// IN BOOLEAN Invalid,
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// IN PVOID *Virtual,
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// IN ULONG Count
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// )
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//
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// Routine Description:
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//
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// This function flushes multiple entries from the translation buffer.
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//
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// Arguments:
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//
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// Invalid (a0) - Supplies a boolean variable that determines the reason
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// that the TB entry is being flushed.
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//
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// Virtual (a1) - Supplies a pointer to an array of virtual addresses of
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// the entries that are flushed from the translation buffer.
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//
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// Count (a2) - Supplies the number of TB entries to flush.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KiFlushMultipleTb)
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bis a1, zero, a0 // a0 = pointer to array
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bis a2, zero, a1 // a1 = count
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TB_INVALIDATE_MULTIPLE // invalidate the entries
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ret zero, (ra) // return
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.end KiFlushMultipleTb
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SBTTL("Flush Multiple 64-bit Translation Buffer")
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//++
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//
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// VOID
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// KiFlushMultipleTb64 (
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// IN BOOLEAN Invalid,
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// IN PVOID *Virtual,
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// IN ULONG Count
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// )
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//
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// Routine Description:
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//
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// This function flushes multiple entries from the translation buffer.
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//
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// Arguments:
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//
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// Invalid (a0) - Supplies a boolean variable that determines the reason
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// that the TB entry is being flushed.
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//
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// Virtual (a1) - Supplies a pointer to an array of virtual page numbers
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// for the entries that are flushed from the translation buffer.
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//
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// Count (a2) - Supplies the number of TB entries to flush.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KiFlushMultipleTb64)
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bis a1, zero, a0 // a0 = pointer to array
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bis a2, zero, a1 // a1 = count
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TB_INVALIDATE_MULTIPLE64 // invalidate the entries
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ret zero, (ra) // return
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.end KiFlushMultipleTb64
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SBTTL("Flush Single Data Translation Buffer")
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//++
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//
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// VOID
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// KiFlushSingleDataTb(
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// )
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//
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// Routine Description:
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//
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// This function flushes a single entry for the data tb only.
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//
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// Arguments:
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//
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// VirtualAddress(a0) - Supplies the virtual address of the entry
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// that is to be flushed from the data translations.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(KiFlushSingleDataTb)
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DATA_TB_INVALIDATE_SINGLE // flush va(a0) from data tbs
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ret zero, (ra) // return
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.end KiFlushSingleDataTb
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