From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by spool.mail.gandi.net (Postfix) with ESMTPS id 575E874003B for ; Fri, 2 Feb 2024 02:28:08 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=Y3qH4i7hzctuVaDHz7+bxLyQriuBjWbkdcbJKKJx6CQ=; 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=1706840887; v=1; b=jyankT1Tah2pzmuzZmpm3nI0HFAdWxK/P94xNe4I1Y2lK5KJmy+ZahB2u6gme1N21J2fqFj/ Ej8xEtVvG407LtUF0i2bgSeGYG0YjVKWH0Gf62hH+8Fgn6HWm3100Nt4X5phm87Q5L7RgDtnpCH 2TLtAkDmmzGHcYoLjaPpH/rM= X-Received: by 127.0.0.2 with SMTP id 1vBLYY7687511xxALNUvyoz1; Thu, 01 Feb 2024 18:28:07 -0800 X-Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by mx.groups.io with SMTP id smtpd.web11.14214.1706840885639591293 for ; Thu, 01 Feb 2024 18:28:06 -0800 X-Received: from loongson.cn (unknown [10.2.9.245]) by gateway (Coremail) with SMTP id _____8Axz+szU7xlP_gJAA--.28818S3; Fri, 02 Feb 2024 10:28:03 +0800 (CST) X-Received: from code-server.gen (unknown [10.2.9.245]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Cxf88xU7xlU8csAA--.39939S2; Fri, 02 Feb 2024 10:28:01 +0800 (CST) From: "Chao Li" To: devel@edk2.groups.io Cc: Michael D Kinney , Liming Gao , Zhiguang Liu Subject: [edk2-devel] [PATCH v1 08/19] MdePkg: Add IOCSR operation for LoongArch Date: Fri, 2 Feb 2024 10:28:00 +0800 Message-Id: <20240202022800.2444874-1-lichao@loongson.cn> In-Reply-To: <20240202022637.2444159-1-lichao@loongson.cn> References: <20240202022637.2444159-1-lichao@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Cxf88xU7xlU8csAA--.39939S2 X-CM-SenderInfo: xolfxt3r6o00pqjv00gofq/1tbiAQAOCGW7VmEFUQBYsi 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: 59cnNe4m46ePb0qpVf7M7s9Ox7686176AA= Content-Transfer-Encoding: 8bit X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=jyankT1T; dmarc=none; spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io Add IoCsrRead8, IoCsrRead16, IoCsrRead32, IoCsrRead64, IoCsrWrite8, IoCsrWrite16, IoCsrWrite32, IoCsrWrite64 to operate the IOCSR registers of LoongArch architecture. BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584 Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Chao Li Acked-by: Michael D Kinney Reviewed-by: Liming Gao --- MdePkg/Include/Library/BaseLib.h | 112 +++++++++++++++++++ MdePkg/Library/BaseLib/BaseLib.inf | 1 + MdePkg/Library/BaseLib/LoongArch64/IoCsr.S | 120 +++++++++++++++++++++ 3 files changed, 233 insertions(+) create mode 100644 MdePkg/Library/BaseLib/LoongArch64/IoCsr.S diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index 4e97368ae2..1fff0fb224 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -396,6 +396,118 @@ CsrXChg ( IN UINTN Mask ); +/** + IO CSR read byte operation. + + @param[in] Select IO CSR read instruction select values. + + @return The return value of iocsrrd.b instruction. + +**/ +UINT8 +IoCsrRead8 ( + IN UINTN Select + ); + +/** + IO CSR read half word operation. + + @param[in] Select IO CSR read instruction select values. + + @return The return value of iocsrrd.h instruction. + +**/ +UINT16 +IoCsrRead16 ( + IN UINTN Select + ); + +/** + IO CSR read word operation. + + @param[in] Select IO CSR read instruction select values. + + @return The return value of iocsrrd.w instruction. + +**/ +UINT32 +IoCsrRead32 ( + IN UINTN Select + ); + +/** + IO CSR read double word operation. Only for LoongArch64. + + @param[in] Select IO CSR read instruction select values. + + @return The return value of iocsrrd.d instruction. + +**/ +UINT64 +IoCsrRead64 ( + IN UINTN Select + ); + +/** + IO CSR write byte operation. + + @param[in] Select IO CSR write instruction select values. + @param[in] Value The iocsrwr.b will write the value. + + @return VOID. + +**/ +VOID +IoCsrWrite8 ( + IN UINTN Select, + IN UINT8 Value + ); + +/** + IO CSR write half word operation. + + @param[in] Select IO CSR write instruction select values. + @param[in] Value The iocsrwr.h will write the value. + + @return VOID. + +**/ +VOID +IoCsrWrite16 ( + IN UINTN Select, + IN UINT16 Value + ); + +/** + IO CSR write word operation. + + @param[in] Select IO CSR write instruction select values. + @param[in] Value The iocsrwr.w will write the value. + + @return VOID. + +**/ +VOID +IoCsrWrite32 ( + IN UINTN Select, + IN UINT32 Value + ); + +/** + IO CSR write double word operation. Only for LoongArch64. + + @param[in] Select IO CSR write instruction select values. + @param[in] Value The iocsrwr.d will write the value. + + @return VOID. + +**/ +VOID +IoCsrWrite64 ( + IN UINTN Select, + IN UINT64 Value + ); + #endif // defined (MDE_CPU_LOONGARCH64) // diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index 7c46306883..4dbe94be71 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -413,6 +413,7 @@ [Sources.LOONGARCH64] LoongArch64/Csr.c LoongArch64/InternalSwitchStack.c LoongArch64/AsmCsr.S | GCC + LoongArch64/IoCsr.S | GCC LoongArch64/GetInterruptState.S | GCC LoongArch64/EnableInterrupts.S | GCC LoongArch64/DisableInterrupts.S | GCC diff --git a/MdePkg/Library/BaseLib/LoongArch64/IoCsr.S b/MdePkg/Library/BaseLib/LoongArch64/IoCsr.S new file mode 100644 index 0000000000..a659908bc4 --- /dev/null +++ b/MdePkg/Library/BaseLib/LoongArch64/IoCsr.S @@ -0,0 +1,120 @@ +#------------------------------------------------------------------------------ +# +# LoongArch ASM IO CSR operation functions +# +# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# +#------------------------------------------------------------------------------ + +ASM_GLOBAL ASM_PFX (IoCsrRead8) +ASM_GLOBAL ASM_PFX (IoCsrRead16) +ASM_GLOBAL ASM_PFX (IoCsrRead32) +ASM_GLOBAL ASM_PFX (IoCsrRead64) + +ASM_GLOBAL ASM_PFX (IoCsrWrite8) +ASM_GLOBAL ASM_PFX (IoCsrWrite16) +ASM_GLOBAL ASM_PFX (IoCsrWrite32) +ASM_GLOBAL ASM_PFX (IoCsrWrite64) + +#/** +# IO CSR read byte operation. +# +# @param[in] Select IO CSR read instruction select values. +# +# @return The return value of iocsrrd.b instruction. +# +#**/ +ASM_PFX (IoCsrRead8): + iocsrrd.b $a0, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR read half word operation. +# +# @param[in] Select IO CSR read instruction select values. +# +# @return The return value of iocsrrd.h instruction. +# +#**/ +ASM_PFX (IoCsrRead16): + iocsrrd.h $a0, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR read word operation. +# +# @param[in] Select IO CSR read instruction select values. +# +# @return The return value of iocsrrd.w instruction. +# +#**/ +ASM_PFX (IoCsrRead32): + iocsrrd.w $a0, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR read double word operation. Only for LoongArch64. +# +# @param[in] Select IO CSR read instruction select values. +# +# @return The return value of iocsrrd.d instruction. +# +#**/ +ASM_PFX (IoCsrRead64): + iocsrrd.d $a0, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR write byte operation. +# +# @param[in] Select IO CSR write instruction select values. +# @param[in] Value The iocsrwr.b will write the value. +# +# @return VOID. +# +#**/ +ASM_PFX (IoCsrWrite8): + iocsrwr.b $a1, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR write half word operation. +# +# @param[in] Select IO CSR write instruction select values. +# @param[in] Value The iocsrwr.h will write the value. +# +# @return VOID. +# +#**/ +ASM_PFX (IoCsrWrite16): + iocsrwr.h $a1, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR write word operation. +# +# @param[in] Select IO CSR write instruction select values. +# @param[in] Value The iocsrwr.w will write the value. +# +# @return VOID. +# +#**/ +ASM_PFX (IoCsrWrite32): + iocsrwr.w $a1, $a0 + jirl $zero, $ra, 0 + +#/** +# IO CSR write double word operation. Only for LoongArch64. +# +# @param[in] Select IO CSR write instruction select values. +# @param[in] Value The iocsrwr.d will write the value. +# +# @return VOID. +# +#**/ +ASM_PFX (IoCsrWrite64): + iocsrwr.d $a1, $a0 + jirl $zero, $ra, 0 + .end -- 2.27.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#114993): https://edk2.groups.io/g/devel/message/114993 Mute This Topic: https://groups.io/mt/104112129/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=-=-=-=-=-=-=-=-=-=-=-