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