mirror of https://github.com/acidanthera/audk.git
203 lines
4.0 KiB
NASM
203 lines
4.0 KiB
NASM
;/*++
|
|
;
|
|
;Copyright (c) 2006, Intel Corporation
|
|
;All rights reserved. This program and the accompanying materials
|
|
;are licensed and made available under the terms and conditions of the BSD License
|
|
;which accompanies this distribution. The full text of the license may be found at
|
|
;http://opensource.org/licenses/bsd-license.php
|
|
;
|
|
;THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
;WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
;
|
|
;Module Name:
|
|
;
|
|
; CpuIA32.c
|
|
;
|
|
;Abstract:
|
|
;
|
|
;--*/
|
|
|
|
;#include "CpuIA32.h"
|
|
|
|
;---------------------------------------------------------------------------
|
|
.586p
|
|
.model flat,C
|
|
.code
|
|
|
|
;---------------------------------------------------------------------------
|
|
;VOID
|
|
;EfiHalt (
|
|
; VOID
|
|
;)
|
|
EfiHalt PROC C PUBLIC
|
|
hlt
|
|
ret
|
|
EfiHalt ENDP
|
|
|
|
;VOID
|
|
;EfiWbinvd (
|
|
; VOID
|
|
;)
|
|
EfiWbinvd PROC C PUBLIC
|
|
wbinvd
|
|
ret
|
|
EfiWbinvd ENDP
|
|
|
|
;VOID
|
|
;EfiInvd (
|
|
; VOID
|
|
;)
|
|
EfiInvd PROC C PUBLIC
|
|
invd
|
|
ret
|
|
EfiInvd ENDP
|
|
|
|
;VOID
|
|
;EfiCpuid (IN UINT32 RegisterInEax,
|
|
; OUT EFI_CPUID_REGISTER *Reg OPTIONAL)
|
|
EfiCpuid PROC C PUBLIC
|
|
push ebp
|
|
mov ebp, esp
|
|
push ebx
|
|
push esi
|
|
push edi
|
|
pushad
|
|
|
|
mov eax, dword ptr[ebp + 8] ;egisterInEax
|
|
cpuid
|
|
cmp dword ptr[ebp + 0Ch], 0 ; Reg
|
|
je @F
|
|
mov edi,dword ptr [ebp+0Ch] ; Reg
|
|
|
|
mov dword ptr [edi],eax ; Reg->RegEax
|
|
mov dword ptr [edi+4],ebx ; Reg->RegEbx
|
|
mov dword ptr [edi+8],ecx ; Reg->RegEcx
|
|
mov dword ptr [edi+0Ch],edx ; Reg->RegEdx
|
|
|
|
@@:
|
|
popad
|
|
pop edi
|
|
pop esi
|
|
pop ebx
|
|
pop ebp
|
|
|
|
ret
|
|
EfiCpuid ENDP
|
|
|
|
|
|
;UINT64
|
|
;EfiReadMsr (
|
|
; IN UINT32 Index
|
|
; );
|
|
EfiReadMsr PROC C PUBLIC
|
|
mov ecx, dword ptr [esp + 4]; Index
|
|
rdmsr
|
|
ret
|
|
EfiReadMsr ENDP
|
|
|
|
;VOID
|
|
;EfiWriteMsr (
|
|
; IN UINT32 Index,
|
|
; IN UINT64 Value
|
|
; );
|
|
EfiWriteMsr PROC C PUBLIC
|
|
mov ecx, dword ptr [esp+4]; Index
|
|
mov eax, dword ptr [esp+8]; DWORD PTR Value[0]
|
|
mov edx, dword ptr [esp+0Ch]; DWORD PTR Value[4]
|
|
wrmsr
|
|
ret
|
|
EfiWriteMsr ENDP
|
|
|
|
;UINT64
|
|
;EfiReadTsc (
|
|
; VOID
|
|
; )
|
|
EfiReadTsc PROC C PUBLIC
|
|
rdtsc
|
|
ret
|
|
EfiReadTsc ENDP
|
|
|
|
;VOID
|
|
;EfiDisableCache (
|
|
; VOID
|
|
;)
|
|
EfiDisableCache PROC C PUBLIC
|
|
mov eax, cr0
|
|
bswap eax
|
|
and al, 60h
|
|
cmp al, 60h
|
|
je @F
|
|
mov eax, cr0
|
|
or eax, 060000000h
|
|
mov cr0, eax
|
|
wbinvd
|
|
@@:
|
|
ret
|
|
EfiDisableCache ENDP
|
|
|
|
;VOID
|
|
;EfiEnableCache (
|
|
; VOID
|
|
; )
|
|
EfiEnableCache PROC C PUBLIC
|
|
invd
|
|
mov eax, cr0
|
|
and eax, 09fffffffh
|
|
mov cr0, eax
|
|
ret
|
|
EfiEnableCache ENDP
|
|
|
|
;UINT32
|
|
;EfiGetEflags (
|
|
; VOID
|
|
; )
|
|
EfiGetEflags PROC C PUBLIC
|
|
pushfd
|
|
pop eax
|
|
ret
|
|
EfiGetEflags ENDP
|
|
|
|
;VOID
|
|
;EfiDisableInterrupts (
|
|
; VOID
|
|
; )
|
|
EfiDisableInterrupts PROC C PUBLIC
|
|
cli
|
|
ret
|
|
EfiDisableInterrupts ENDP
|
|
|
|
;VOID
|
|
;EfiEnableInterrupts (
|
|
; VOID
|
|
; )
|
|
EfiEnableInterrupts PROC C PUBLIC
|
|
sti
|
|
ret
|
|
EfiEnableInterrupts ENDP
|
|
|
|
;VOID
|
|
;EfiCpuidExt (
|
|
; IN UINT32 RegisterInEax,
|
|
; IN UINT32 CacheLevel,
|
|
; OUT EFI_CPUID_REGISTER *Regs
|
|
; )
|
|
EfiCpuidExt PROC C PUBLIC USES ebx edi esi
|
|
pushad
|
|
|
|
mov eax, dword ptr [esp + 30h] ; RegisterInEax
|
|
mov ecx, dword ptr [esp + 34h] ; CacheLevel
|
|
cpuid
|
|
mov edi, dword ptr [esp + 38h] ; DWORD PTR Regs
|
|
|
|
mov dword ptr [edi], eax ; Reg->RegEax
|
|
mov dword ptr [edi + 4], ebx ; Reg->RegEbx
|
|
mov dword ptr [edi + 8], ecx ; Reg->RegEcx
|
|
mov dword ptr [edi + 0Ch], edx ; Reg->RegEdx
|
|
|
|
popad
|
|
ret
|
|
EfiCpuidExt ENDP
|
|
|
|
END
|
|
|