Upload BSD-licensed Vlv2TbltDevicePkg and Vlv2DeviceRefCodePkg to

[mirror_edk2.git] / Vlv2TbltDevicePkg / Library / CpuIA32Lib / IA32 / CpuIA32.asm

;\r
; This file contains an 'Intel Sample Driver' and is\r
; licensed for Intel CPUs and chipsets under the terms of your\r
; license agreement with Intel or your vendor.  This file may\r
; be modified by the user, subject to additional terms of the\r
; license agreement\r
;\r
;\r
; Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved\r
;                                                                                  \r\r
; This program and the accompanying materials are licensed and made available under\r\r
; the terms and conditions of the BSD License that accompanies this distribution.  \r\r
; The full text of the license may be found at                                     \r\r
; http://opensource.org/licenses/bsd-license.php.                                  \r\r
;                                                                                  \r\r
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,            \r\r
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.    \r\r
;                                                                                  \r\r
;\r
\r
;Module Name:\r
;\r
;  CpuIA32.c\r
;\r
;Abstract:\r
;\r
;--*/\r
\r
;#include "CpuIA32.h"\r
\r
;---------------------------------------------------------------------------\r
    .586p\r
    .model  flat,C\r
    .code\r
\r
;---------------------------------------------------------------------------\r
;VOID\r
;EfiHalt (\r
;  VOID\r
;)\r
EfiHalt PROC C PUBLIC\r
    hlt\r
    ret\r
EfiHalt ENDP\r
\r
;VOID\r
;EfiWbinvd (\r
;  VOID\r
;)\r
EfiWbinvd PROC C PUBLIC\r
    wbinvd\r
    ret\r
EfiWbinvd ENDP\r
\r
;VOID\r
;EfiInvd (\r
; VOID\r
;)\r
EfiInvd PROC C PUBLIC\r
    invd\r
    ret\r
EfiInvd ENDP\r
\r
;VOID\r
;EfiCpuid (IN UINT32 RegisterInEax,\r
;          OUT EFI_CPUID_REGISTER *Reg OPTIONAL)\r
EfiCpuid PROC C PUBLIC\r
    push ebp\r
    mov  ebp, esp\r
    push ebx\r
    push esi\r
    push edi\r
    pushad\r
\r
    mov    eax, dword ptr[ebp + 8] ;egisterInEax\r
    cpuid\r
    cmp    dword ptr[ebp + 0Ch], 0 ; Reg\r
    je     @F\r
    mov         edi,dword ptr [ebp+0Ch] ; Reg\r
\r
    mov         dword ptr [edi],eax ; Reg->RegEax\r
    mov         dword ptr [edi+4],ebx ; Reg->RegEbx\r
    mov         dword ptr [edi+8],ecx ; Reg->RegEcx\r
    mov         dword ptr [edi+0Ch],edx ; Reg->RegEdx\r
\r
@@:\r
    popad\r
    pop         edi\r
    pop         esi\r
    pop         ebx\r
    pop         ebp\r
\r
    ret\r
EfiCpuid ENDP\r
\r
\r
;UINT64\r
;EfiReadMsr (\r
;  IN UINT32 Index\r
;  );\r
EfiReadMsr PROC C PUBLIC\r
    mov    ecx, dword ptr [esp + 4]; Index\r
    rdmsr\r
    ret\r
EfiReadMsr ENDP\r
\r
;VOID\r
;EfiWriteMsr (\r
;  IN   UINT32  Index,\r
;  IN   UINT64  Value\r
;  );\r
EfiWriteMsr PROC C PUBLIC\r
    mov    ecx, dword ptr [esp+4]; Index\r
    mov    eax, dword ptr [esp+8]; DWORD PTR Value[0]\r
    mov    edx, dword ptr [esp+0Ch]; DWORD PTR Value[4]\r
    wrmsr\r
    ret\r
EfiWriteMsr  ENDP\r
\r
;UINT64\r
;EfiReadTsc (\r
;  VOID\r
;  )\r
EfiReadTsc PROC C PUBLIC\r
    rdtsc\r
    ret\r
EfiReadTsc  ENDP\r
\r
;VOID\r
;EfiDisableCache (\r
;  VOID\r
;)\r
EfiDisableCache PROC C PUBLIC\r
    mov   eax, cr0\r
    bswap eax\r
    and   al, 60h\r
    cmp   al, 60h\r
    je    @F\r
    mov   eax, cr0\r
    or    eax, 060000000h\r
    mov   cr0, eax\r
    wbinvd\r
@@:\r
    ret\r
EfiDisableCache  ENDP\r
\r
;VOID\r
;EfiEnableCache (\r
;  VOID\r
;  )\r
EfiEnableCache PROC C PUBLIC\r
    wbinvd\r
    mov   eax, cr0\r
    and   eax, 09fffffffh\r
    mov   cr0, eax\r
    ret\r
EfiEnableCache  ENDP\r
\r
;UINT32\r
;EfiGetEflags (\r
;  VOID\r
;  )\r
EfiGetEflags PROC C PUBLIC\r
    pushfd\r
    pop  eax\r
    ret\r
EfiGetEflags  ENDP\r
\r
;VOID\r
;EfiDisableInterrupts (\r
;  VOID\r
;  )\r
EfiDisableInterrupts PROC C PUBLIC\r
    cli\r
    ret\r
EfiDisableInterrupts  ENDP\r
\r
;VOID\r
;EfiEnableInterrupts (\r
;  VOID\r
;  )\r
EfiEnableInterrupts  PROC C PUBLIC\r
    sti\r
    ret\r
EfiEnableInterrupts   ENDP\r
\r
;VOID\r
;EfiCpuidExt (\r
;  IN   UINT32              RegisterInEax,\r
;  IN   UINT32              CacheLevel,\r
;  OUT  EFI_CPUID_REGISTER  *Regs\r
;  )\r
EfiCpuidExt PROC C PUBLIC USES ebx edi esi\r
    pushad\r
\r
    mov    eax, dword ptr [esp + 30h] ; RegisterInEax\r
    mov    ecx, dword ptr [esp + 34h] ; CacheLevel\r
    cpuid\r
    mov    edi, dword ptr [esp + 38h] ; DWORD PTR Regs\r
\r
    mov    dword ptr [edi], eax   	; Reg->RegEax\r
    mov    dword ptr [edi + 4], ebx   	; Reg->RegEbx\r
    mov    dword ptr [edi + 8], ecx   	; Reg->RegEcx\r
    mov    dword ptr [edi + 0Ch], edx   ; Reg->RegEdx\r
\r
    popad\r
    ret\r
EfiCpuidExt  ENDP\r
\r
	END\r
\r