From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: hpe.com, ip: 148.163.143.35, mailfrom: prvs=01695bccdc=abner.chang@hpe.com) Received: from mx0b-002e3701.pphosted.com (mx0b-002e3701.pphosted.com [148.163.143.35]) by groups.io with SMTP; Sun, 22 Sep 2019 18:02:49 -0700 Received: from pps.filterd (m0148664.ppops.net [127.0.0.1]) by mx0b-002e3701.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x8N116FQ006954 for ; Mon, 23 Sep 2019 01:02:48 GMT Received: from g4t3426.houston.hpe.com (g4t3426.houston.hpe.com [15.241.140.75]) by mx0b-002e3701.pphosted.com with ESMTP id 2v5emfmb5d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 23 Sep 2019 01:02:48 +0000 Received: from g4t3433.houston.hpecorp.net (g4t3433.houston.hpecorp.net [16.208.49.245]) by g4t3426.houston.hpe.com (Postfix) with ESMTP id B3A9D54 for ; Mon, 23 Sep 2019 01:02:47 +0000 (UTC) Received: from UB16Abner.asiapacific.hpqcorp.net (ub16abner.asiapacific.hpqcorp.net [15.119.209.44]) by g4t3433.houston.hpecorp.net (Postfix) with ESMTP id CC1F345; Mon, 23 Sep 2019 01:02:46 +0000 (UTC) From: "Abner Chang" To: devel@edk2.groups.io Cc: abner.chang@hpe.com Subject: [edk2-staging/RISC-V-V2 PATCH v2 11/29] MdePkg/BaseCpuLib: RISC-V Base CPU library implementation. Date: Mon, 23 Sep 2019 08:31:37 +0800 Message-Id: <1569198715-31552-13-git-send-email-abner.chang@hpe.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1569198715-31552-1-git-send-email-abner.chang@hpe.com> References: <1569198715-31552-1-git-send-email-abner.chang@hpe.com> X-HPE-SCL: -1 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.70,1.0.8 definitions=2019-09-22_09:2019-09-20,2019-09-22 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=1 malwarescore=0 bulkscore=0 phishscore=0 adultscore=0 priorityscore=1501 mlxscore=0 mlxlogscore=799 spamscore=0 clxscore=1015 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1908290000 definitions=main-1909230006 Implement RISC-V CPU related functions in BaseCpuLib. Signed-off-by: Abner Chang --- MdePkg/Library/BaseCpuLib/BaseCpuLib.inf | 6 +++++- MdePkg/Library/BaseCpuLib/BaseCpuLib.uni | 5 +++-- MdePkg/Library/BaseCpuLib/RiscV/Cpu.S | 19 +++++++++++++++++++ 3 files changed, 27 insertions(+), 3 deletions(-) create mode 100644 MdePkg/Library/BaseCpuLib/RiscV/Cpu.S diff --git a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf index a7cb381..a95d8a0 100644 --- a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf +++ b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf @@ -7,6 +7,7 @@ # Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.
+# Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.
# # SPDX-License-Identifier: BSD-2-Clause-Patent # @@ -24,7 +25,7 @@ # -# VALID_ARCHITECTURES = IA32 X64 EBC ARM AARCH64 +# VALID_ARCHITECTURES = IA32 X64 EBC ARM AARCH64 RISCV64 # [Sources.IA32] @@ -59,6 +60,9 @@ AArch64/CpuFlushTlb.asm | MSFT AArch64/CpuSleep.asm | MSFT +[Sources.RISCV64] + RiscV/Cpu.S + [Packages] MdePkg/MdePkg.dec diff --git a/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni b/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni index fc95cda..85d56ce 100644 --- a/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni +++ b/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni @@ -1,12 +1,13 @@ // /** @file // Instance of CPU Library for various architecture. // -// CPU Library implemented using ASM functions for IA-32 and X64, +// CPU Library implemented using ASM functions for IA-32, X64 and RISCV64, // PAL CALLs for IPF, and empty functions for EBC. // // Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.
// Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
// Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.
+// Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.
// // SPDX-License-Identifier: BSD-2-Clause-Patent // @@ -15,5 +16,5 @@ #string STR_MODULE_ABSTRACT #language en-US "Instance of CPU Library for various architectures" -#string STR_MODULE_DESCRIPTION #language en-US "CPU Library implemented using ASM functions for IA-32 and X64, PAL CALLs for IPF, and empty functions for EBC." +#string STR_MODULE_DESCRIPTION #language en-US "CPU Library implemented using ASM functions for IA-32, X64 and RISCV64, PAL CALLs for IPF, and empty functions for EBC." diff --git a/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S b/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S new file mode 100644 index 0000000..703b1e8 --- /dev/null +++ b/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S @@ -0,0 +1,19 @@ +//------------------------------------------------------------------------------ +// +// CpuSleep for RISC-V +// +// Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.
+// SPDX-License-Identifier: BSD-2-Clause-Patent +// +//------------------------------------------------------------------------------ +.data +.align 3 +.section .text + +.global ASM_PFX(_CpuSleep) + +ASM_PFX(_CpuSleep): + wfi + ret + + -- 2.7.4