From nobody Tue Feb 10 18:54:31 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+112394+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+112394+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1702386678; cv=none; d=zohomail.com; s=zohoarc; b=SVr8W4ILYTFrskANvxkQq2JJPgiCQD8F+SRpC1FMiPxhEbB+XPKrvPIJ1cAdLDKKyBckEoCotfj4NXkRDaQuPDVOBPtYm6NVw/xfyHqgcudGB64il98jL8UYeviUEdTMLl66d+rUmHLUz5ple/qut1OhfOa95H3pfRaaQ4lUG30= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1702386678; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=kn4/1Zd/l7IwXj+/UhjrjTpzppSYrlDXDTOblCLQUNc=; b=iX/WjPix7myCplqU1WyTyngvCOTqDMcng3Es3TvvggF2LIHZ/T26fEwE7ArIIevKg1WfTcAYKoeW4isEr/L/u3258hQDMXgyTZAIJNg0nV9JnjzKcGzLo/5QRsQOePnVB8N+7FmBBAJnXbFzVerBZ6qUOT6Dq7nzuAOMzN0z65Q= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+112394+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1702386678185872.8509018191495; Tue, 12 Dec 2023 05:11:18 -0800 (PST) Return-Path: DKIM-Signature: a=rsa-sha256; bh=5qNKBmiD8TTghWWZclgG20VhasukV2g9i9mDRrgd/Uc=; c=relaxed/simple; d=groups.io; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:MIME-Version:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Transfer-Encoding; s=20140610; t=1702386677; v=1; b=J8aKiAWwv+fylMWqenggLpvfDh+pPyE2SwQNanij5hSVZpyfuC7pFu1dNB8VlDGBYDM9AYUx 2JWpz0EqduPEQs9M2aT9mCjQO5m834MkWjhhZqA4DOYpYpupSap1nia2FQDNpSV1I4fFJRUcd/A abEFKOglhXSXuT/js2Vn8vuM= X-Received: by 127.0.0.2 with SMTP id xVXdYY1788612xaN9XuhXh2n; Tue, 12 Dec 2023 05:11:17 -0800 X-Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by mx.groups.io with SMTP id smtpd.web11.1174.1702386676440795367 for ; Tue, 12 Dec 2023 05:11:17 -0800 X-Received: from loongson.cn (unknown [10.2.9.245]) by gateway (Coremail) with SMTP id _____8BxbOnyW3hlSlkAAA--.2089S3; Tue, 12 Dec 2023 21:11:14 +0800 (CST) X-Received: from code-server.gen (unknown [10.2.9.245]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Ax_ODxW3hlXaMAAA--.4328S2; Tue, 12 Dec 2023 21:11:13 +0800 (CST) From: "Chao Li" To: devel@edk2.groups.io Cc: Michael D Kinney , Liming Gao , Zhiguang Liu Subject: [edk2-devel] [PATCH v4 03/37] MdePkg: Add LoongArch64 exception function set into BaseLib Date: Tue, 12 Dec 2023 21:11:12 +0800 Message-Id: <20231212131112.2468622-1-lichao@loongson.cn> In-Reply-To: <20231212130932.2467028-1-lichao@loongson.cn> References: <20231212130932.2467028-1-lichao@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Ax_ODxW3hlXaMAAA--.4328S2 X-CM-SenderInfo: xolfxt3r6o00pqjv00gofq/1tbiAQADCGV3wy0H6gAFse X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,lichao@loongson.cn List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: cdy6vBN4tEloOcY62O4yfoZfx1787277AA= Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1702386680309100003 Content-Type: text/plain; charset="utf-8" Adding SetExceptionBaseAddress and SetTlbRebaseAddress functions for LoongArch64. BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D4584 Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Chao Li Acked-by: Michael D Kinney --- MdePkg/Include/Library/BaseLib.h | 20 +++++++++ MdePkg/Library/BaseLib/BaseLib.inf | 1 + .../BaseLib/LoongArch64/ExceptionBase.S | 41 +++++++++++++++++++ 3 files changed, 62 insertions(+) create mode 100644 MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/Base= Lib.h index 5d7067ee85..a9a69c734c 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -229,6 +229,26 @@ typedef struct { =20 #define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 =20 +/* + * Set the exception base address for LoongArch. + * + * @param ExceptionBaseAddress The exception base address, must be alig= ned greater than or qeual to 4K . + */ +VOID +SetExceptionBaseAddress ( + IN UINT64 + ); + +/* + * Set the TlbRebase address for LoongArch. + * + * @param TlbRebaseAddress The TlbRebase address, must be aligned great= er than or qeual to 4K . + */ +VOID +SetTlbRebaseAddress ( + IN UINT64 + ); + #endif // defined (MDE_CPU_LOONGARCH64) =20 // diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/Ba= seLib.inf index 03c7b02e82..a18fe5efb4 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -419,6 +419,7 @@ LoongArch64/CpuPause.S | GCC LoongArch64/SetJumpLongJump.S | GCC LoongArch64/SwitchStack.S | GCC + LoongArch64/ExceptionBase.S | GCC =20 [Packages] MdePkg/MdePkg.dec diff --git a/MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S b/MdePkg/Li= brary/BaseLib/LoongArch64/ExceptionBase.S new file mode 100644 index 0000000000..36c6ca7ca8 --- /dev/null +++ b/MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S @@ -0,0 +1,41 @@ +#-------------------------------------------------------------------------= ----- +# +# LoongArch set exception base address operations +# +# Copyright (c) 2023, Loongson Technology Corporation Limited. All rights = reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# +#-------------------------------------------------------------------------= ----- + +#include +#include + +ASM_GLOBAL ASM_PFX(SetExceptionBaseAddress) +ASM_GLOBAL ASM_PFX(SetTlbRebaseAddress) + +#/** +# Set the exception base address for LoongArch. +# +# @param ExceptionBaseAddress The exception base address, must be alig= ned greater than or qeual to 4K . +#**/ +ASM_PFX(SetExceptionBaseAddress): + csrrd $t0, LOONGARCH_CSR_ECFG + li.d $t1, ~(BIT16 | BIT17 | BIT18) + and $t0, $t0, $t1 + csrwr $t0, LOONGARCH_CSR_ECFG + + move $t0, $a0 + csrwr $t0, LOONGARCH_CSR_EBASE + jirl $zero, $ra, 0 + +#/** +# Set the TlbRebase address for LoongArch. +# +# @param TlbRebaseAddress The TlbRebase address, must be aligned great= er than or qeual to 4K . +#**/ +ASM_PFX(SetTlbRebaseAddress): + move $t0, $a0 + csrwr $t0, LOONGARCH_CSR_TLBREBASE + jirl $zero, $ra, 0 +.end --=20 2.27.0 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112394): https://edk2.groups.io/g/devel/message/112394 Mute This Topic: https://groups.io/mt/103129070/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-