/** @file\r
GCC inline implementation of BaseLib processor specific functions.\r
- \r
- Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
- Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
)\r
{\r
// This is a little bit of overkill and it is more about the compiler that it is\r
- // actually processor syncronization. This is like the _ReadWriteBarrier \r
- // Microsft specific intrinsic\r
+ // actually processor synchronization. This is like the _ReadWriteBarrier\r
+ // Microsoft specific intrinsic\r
__asm__ __volatile__ ("":::"memory");\r
}\r
\r
DisableInterrupts (\r
VOID\r
)\r
-{ \r
+{\r
__asm__ __volatile__ ("cli"::: "memory");\r
}\r
\r
)\r
{\r
UINT64 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"rdmsr"\r
: "=A" (Data) // %0\r
: "c" (Index) // %1\r
);\r
- \r
+\r
return Data;\r
}\r
\r
: "c" (Index),\r
"A" (Value)\r
);\r
- \r
+\r
return Value;\r
}\r
\r
)\r
{\r
UINTN Eflags;\r
- \r
+\r
__asm__ __volatile__ (\r
"pushfl \n\t"\r
"popl %0 "\r
: "=r" (Eflags)\r
);\r
- \r
+\r
return Eflags;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
- "movl %%cr0,%0" \r
+ "movl %%cr0,%0"\r
: "=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
- "movl %%cr2, %0" \r
+ "movl %%cr2, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%cr3, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%cr4, %0"\r
: "=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr0, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr1, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr2, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr3, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr4, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr5, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr6, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINTN Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"movl %%dr7, %0"\r
: "=r" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"mov %%cs, %0"\r
:"=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"mov %%ds, %0"\r
:"=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"mov %%es, %0"\r
:"=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"mov %%fs, %0"\r
:"=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"mov %%gs, %0"\r
:"=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"mov %%ds, %0"\r
:"=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"str %0"\r
: "=a" (Data)\r
);\r
- \r
+\r
return Data;\r
}\r
\r
Reads and returns the current GDTR descriptor and returns it in Gdtr. This\r
function is only available on IA-32 and X64.\r
\r
- @param Gdtr Pointer to a GDTR descriptor.\r
+ @param Gdtr The pointer to a GDTR descriptor.\r
\r
**/\r
VOID\r
Writes and the current GDTR descriptor specified by Gdtr. This function is\r
only available on IA-32 and X64.\r
\r
- @param Gdtr Pointer to a GDTR descriptor.\r
+ @param Gdtr The pointer to a GDTR descriptor.\r
\r
**/\r
VOID\r
:\r
: "m" (*Gdtr)\r
);\r
- \r
+\r
}\r
\r
\r
Reads and returns the current IDTR descriptor and returns it in Idtr. This\r
function is only available on IA-32 and X64.\r
\r
- @param Idtr Pointer to a IDTR descriptor.\r
+ @param Idtr The pointer to a IDTR descriptor.\r
\r
**/\r
VOID\r
EFIAPI\r
InternalX86ReadIdtr (\r
- OUT IA32_DESCRIPTOR *Ldtr\r
+ OUT IA32_DESCRIPTOR *Idtr\r
)\r
{\r
__asm__ __volatile__ (\r
- "sldt %0"\r
- : "=m" (*Ldtr)\r
+ "sidt %0"\r
+ : "=m" (*Idtr)\r
);\r
}\r
\r
Writes the current IDTR descriptor and returns it in Idtr. This function is\r
only available on IA-32 and X64.\r
\r
- @param Idtr Pointer to a IDTR descriptor.\r
+ @param Idtr The pointer to a IDTR descriptor.\r
\r
**/\r
VOID\r
EFIAPI\r
InternalX86WriteIdtr (\r
- IN CONST IA32_DESCRIPTOR *Ldtr\r
+ IN CONST IA32_DESCRIPTOR *Idtr\r
)\r
{\r
__asm__ __volatile__ (\r
"lidt %0"\r
:\r
- : "m" (*Ldtr)\r
+ : "m" (*Idtr)\r
);\r
}\r
\r
)\r
{\r
UINT16 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"sldt %0"\r
: "=g" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
Buffer. Buffer must be aligned on a 16-byte boundary. This function is only\r
available on IA-32 and X64.\r
\r
- @param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.\r
+ @param Buffer The pointer to a buffer to save the floating point/SSE/SSE2 context.\r
\r
**/\r
VOID\r
"fxsave %0"\r
:\r
: "m" (*Buffer) // %0\r
- ); \r
+ );\r
}\r
\r
\r
by Buffer. Buffer must be aligned on a 16-byte boundary. This function is\r
only available on IA-32 and X64.\r
\r
- @param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.\r
+ @param Buffer The pointer to a buffer to save the floating point/SSE/SSE2 context.\r
\r
**/\r
VOID\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
"pop %%edx \n\t"\r
: "=A" (Data) // %0\r
);\r
- \r
+\r
return Data;\r
}\r
\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm0" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm1" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm2" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm3" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm4" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm5" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm6" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
{\r
__asm__ __volatile__ (\r
"movq %0, %%mm7" // %0\r
- : \r
+ :\r
: "m" (Value)\r
);\r
}\r
)\r
{\r
UINT64 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"rdtsc"\r
: "=A" (Data)\r
);\r
- \r
- return Data; \r
+\r
+ return Data;\r
}\r
\r
\r
)\r
{\r
UINT64 Data;\r
- \r
+\r
__asm__ __volatile__ (\r
"rdpmc"\r
: "=A" (Data)\r
: "c" (Index)\r
);\r
- \r
- return Data; \r
+\r
+ return Data;\r
}\r
\r
\r
)\r
{\r
__asm__ __volatile__ ("invd":::"memory");\r
- \r
+\r
}\r
\r
\r
IN VOID *LinearAddress\r
)\r
{\r
+ UINT32 RegEdx;\r
+\r
+ //\r
+ // If the CPU does not support CLFLUSH instruction,\r
+ // then promote flush range to flush entire cache.\r
+ //\r
+ AsmCpuid (0x01, NULL, NULL, NULL, &RegEdx);\r
+ if ((RegEdx & BIT19) == 0) {\r
+ __asm__ __volatile__ ("wbinvd":::"memory");\r
+ return LinearAddress;\r
+ }\r
+\r
+\r
__asm__ __volatile__ (\r
"clflush (%0)"\r
- : "+a" (LinearAddress) \r
- : \r
+ : "+a" (LinearAddress)\r
+ :\r
: "memory"\r
);\r
- \r
- return LinearAddress;\r
+\r
+ return LinearAddress;\r
}\r
\r
\r
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