Revision: 19234
http://sourceforge.net/p/edk2/code/19234
Author: mdkinney
Date: 2015-12-14 06:11:17 +0000 (Mon, 14 Dec 2015)
Log Message:
-----------
MdePkg/BaseIoLibIntrinsic: Add EBC support
The EBC instruction set supports memory and MMIO access, but not
I/O port access. Add EBC support to BaseIoLibIntrinsic that
generates an ASSERT() if the IoReadXX()/IoWriteXX() APIs are used.
This matches the implementation for other CPU types that do not
support I/O port access.
Cc: Liming Gao <[email protected]>
Cc: Ruiyu Ni <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <[email protected]>
Reviewed-by: Liming Gao <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
trunk/edk2/MdePkg/MdePkg.dsc
Added Paths:
-----------
trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/IoLibEbc.c
Modified: trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
===================================================================
--- trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
2015-12-14 06:03:58 UTC (rev 19233)
+++ trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
2015-12-14 06:11:17 UTC (rev 19234)
@@ -3,9 +3,10 @@
#
# I/O Library that uses compiler intrinsics to perform IN and OUT instructions
# for IA-32 and x64. On IPF, I/O port requests are translated into MMIO
requests.
-# MMIO requests are forwarded directly to memory.
+# MMIO requests are forwarded directly to memory. For EBC, I/O port requests
+# ASSERT().
#
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# This program and the accompanying materials
@@ -29,7 +30,7 @@
#
-# VALID_ARCHITECTURES = IA32 X64 IPF ARM AARCH64
+# VALID_ARCHITECTURES = IA32 X64 EBC IPF ARM AARCH64
#
[Sources]
@@ -49,6 +50,10 @@
IoLibIcc.c | INTEL
IoLib.c
+[Sources.EBC]
+ IoLibEbc.c
+ IoLib.c
+
[Sources.IPF]
IoLibIpf.c
Added: trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/IoLibEbc.c
===================================================================
--- trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/IoLibEbc.c
(rev 0)
+++ trunk/edk2/MdePkg/Library/BaseIoLibIntrinsic/IoLibEbc.c 2015-12-14
06:11:17 UTC (rev 19234)
@@ -0,0 +1,171 @@
+/** @file
+ I/O Library for EBC.
+
+ EBC does not support port I/O. All APIs in this file ASSERT().
+
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+ 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.
+
+**/
+
+#include "BaseIoLibIntrinsicInternal.h"
+
+/**
+ Reads an 8-bit I/O port.
+
+ Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.
+ This function must guarantee that all I/O read and write operations are
+ serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to read.
+
+ @return The value read.
+
+**/
+UINT8
+EFIAPI
+IoRead8 (
+ IN UINTN Port
+ )
+{
+ ASSERT (FALSE);
+ return 0;
+}
+
+/**
+ Writes an 8-bit I/O port.
+
+ Writes the 8-bit I/O port specified by Port with the value specified by Value
+ and returns Value. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param Value The value to write to the I/O port.
+
+ @return The value written to the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoWrite8 (
+ IN UINTN Port,
+ IN UINT8 Value
+ )
+{
+ ASSERT (FALSE);
+ return 0;
+}
+
+/**
+ Reads a 16-bit I/O port.
+
+ Reads the 16-bit I/O port specified by Port. The 16-bit read value is
returned.
+ This function must guarantee that all I/O read and write operations are
+ serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If Port is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Port The I/O port to read.
+
+ @return The value read.
+
+**/
+UINT16
+EFIAPI
+IoRead16 (
+ IN UINTN Port
+ )
+{
+ ASSERT (FALSE);
+ return 0;
+}
+
+/**
+ Writes a 16-bit I/O port.
+
+ Writes the 16-bit I/O port specified by Port with the value specified by
Value
+ and returns Value. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+ If Port is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param Value The value to write to the I/O port.
+
+ @return The value written to the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoWrite16 (
+ IN UINTN Port,
+ IN UINT16 Value
+ )
+{
+ ASSERT (FALSE);
+ return 0;
+}
+
+/**
+ Reads a 32-bit I/O port.
+
+ Reads the 32-bit I/O port specified by Port. The 32-bit read value is
returned.
+ This function must guarantee that all I/O read and write operations are
+ serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If Port is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Port The I/O port to read.
+
+ @return The value read.
+
+**/
+UINT32
+EFIAPI
+IoRead32 (
+ IN UINTN Port
+ )
+{
+ ASSERT (FALSE);
+ return 0;
+}
+
+/**
+ Writes a 32-bit I/O port.
+
+ Writes the 32-bit I/O port specified by Port with the value specified by
Value
+ and returns Value. This function must guarantee that all I/O read and write
+ operations are serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+ If Port is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param Value The value to write to the I/O port.
+
+ @return The value written to the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoWrite32 (
+ IN UINTN Port,
+ IN UINT32 Value
+ )
+{
+ ASSERT (FALSE);
+ return 0;
+}
Modified: trunk/edk2/MdePkg/MdePkg.dsc
===================================================================
--- trunk/edk2/MdePkg/MdePkg.dsc 2015-12-14 06:03:58 UTC (rev 19233)
+++ trunk/edk2/MdePkg/MdePkg.dsc 2015-12-14 06:11:17 UTC (rev 19234)
@@ -172,6 +172,7 @@
MdePkg/Library/DxeTimerLibEsal/DxeTimerLibEsal.inf
[Components.EBC]
+ MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
MdePkg/Library/UefiRuntimeLib/UefiRuntimeLib.inf
[Components.ARM, Components.AARCH64]
------------------------------------------------------------------------------
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