From nobody Wed Apr 24 07:33:58 2024 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+69647+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+69647+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1609801140; cv=none; d=zohomail.com; s=zohoarc; b=D3xcEKwX3+VA4ZwG/3FLfXONfzikfyyBQcHhJE7ZfXtG1EM01e8VSQVZp9+L7doo6yIgg37VKy7t7r6SjCUu1kz1ZfIN6qACKDZBhkuZixYih8ZpotJmvO6P6KkV2OwCnDaZqJJxT7/Ydf4RiF84EvbR2Wbu8KaXfAdDIDU7W54= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1609801140; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Id:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=CHswQkM8vkWiNcoXXLVzq5fov3MwpzXOOnB4Vgv9sRQ=; b=lJxcZXs/qfEqyRAbpHfuYYOy2GDEBZduS2RLQEQ5z5rpmgQa9D5uBNAfQFPS2we58AlJ8DsH6LefRqy8Lii9AtE6OiHjIOmtBrjvdl08NLGBjp9YaldKR20cTdHp7aS6rGbEdSjT6fY2Am55EGf6aRw3Z+eh1CdkHxPwdpWEmfo= 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+69647+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1609801140613966.0118228145528; Mon, 4 Jan 2021 14:59:00 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id CvfQYY1788612xomOZTfD0vB; Mon, 04 Jan 2021 14:59:00 -0800 X-Received: from mail-pf1-f173.google.com (mail-pf1-f173.google.com [209.85.210.173]) by mx.groups.io with SMTP id smtpd.web08.61.1609801134791984650 for ; Mon, 04 Jan 2021 14:58:54 -0800 X-Received: by mail-pf1-f173.google.com with SMTP id w6so17301320pfu.1 for ; Mon, 04 Jan 2021 14:58:54 -0800 (PST) X-Gm-Message-State: 4EJ7xTNHyLRVWcCurnRldn3Px1787277AA= X-Google-Smtp-Source: ABdhPJwvir1rZYZFPHStGpO7H021e0x41UFEO6PDE1wQ0MNQNAkYHJ8lKFtJ5fs+3webxLGTRtAQ5g== X-Received: by 2002:a63:48b:: with SMTP id 133mr72503457pge.139.1609801133864; Mon, 04 Jan 2021 14:58:53 -0800 (PST) X-Received: from cube.nuviainc.com (c-174-52-16-57.hsd1.ut.comcast.net. [174.52.16.57]) by smtp.gmail.com with ESMTPSA id x143sm64185289pgx.66.2021.01.04.14.58.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jan 2021 14:58:53 -0800 (PST) From: "Rebecca Cran" To: devel@edk2.groups.io Cc: Rebecca Cran , Leif Lindholm , Ard Biesheuvel , "nd @ arm . com . Sami Mujawar" , Liming Gao , Michael D Kinney , Zhiguang Liu , Sami Mujawar Subject: [edk2-devel] [PATCH v5 09/23] ArmPkg: Add helper to read CCIDX status Date: Mon, 4 Jan 2021 15:58:16 -0700 Message-Id: <20210104225830.12606-10-rebecca@nuviainc.com> In-Reply-To: <20210104225830.12606-1-rebecca@nuviainc.com> References: <20210104225830.12606-1-rebecca@nuviainc.com> MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: 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,rebecca@nuviainc.com Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1609801140; bh=wXkH2sKAqHEJrOUyZwBZU0jPlS5HQHdw28mYrm5p2cc=; h=Cc:Date:From:Reply-To:Subject:To; b=Hxn/CuJO7qmprBPj+L6eOT2KOtFCuORC0QxrLZ+cU1n8M4Fe4i3BlGmuhBRLu9jv+vE pZC+M7JJs9JQWN5DE9c9mgTO3XJUmV9f0Bb6TOlnW2fmE0BZA8VXfPoes27PLYBQNkgMY uEQEb4KSLApmUNAeQMWrT4TBA1GQkNUBsKg= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Type: text/plain; charset="utf-8" Add a helper function to determine CCIDX support. Signed-off-by: Rebecca Cran Reviewed-by: Sami Mujawar Reviewed-by: Leif Lindholm --- ArmPkg/Include/Library/ArmLib.h | 11 +++++++++++ ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c | 17 +++++++++++++++++ ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c | 17 +++++++++++++++++ 3 files changed, 45 insertions(+) diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLi= b.h index fd4f06d24274..70b9d816b74c 100644 --- a/ArmPkg/Include/Library/ArmLib.h +++ b/ArmPkg/Include/Library/ArmLib.h @@ -725,6 +725,17 @@ ArmHasGicSystemRegisters ( VOID ); =20 +/** Checks if CCIDX is implemented. + + @retval TRUE CCIDX is implemented. + @retval FALSE CCIDX is not implemented. +**/ +BOOLEAN +EFIAPI +ArmHasCcidx ( + VOID + ); + #ifdef MDE_CPU_ARM /// /// AArch32-only ID Register Helper functions diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c b/ArmPkg/Library/Ar= mLib/AArch64/AArch64Lib.c index 53e593bc994b..f0bf897da2a6 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c @@ -87,3 +87,20 @@ ArmHasGicSystemRegisters ( { return ((ArmReadIdAA64Pfr0 () & AARCH64_PFR0_GIC) !=3D 0); } + +/** Checks if CCIDX is implemented. + + @retval TRUE CCIDX is implemented. + @retval FALSE CCIDX is not implemented. +**/ +BOOLEAN +EFIAPI +ArmHasCcidx ( + VOID + ) +{ + UINTN Mmfr2; + + Mmfr2 =3D ArmReadIdAA64Mmfr2 (); + return (((Mmfr2 >> 20) & 0xF) =3D=3D 1) ? TRUE : FALSE; +} diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c b/ArmPkg/Library/ArmLib/A= rm/ArmV7Lib.c index 9f81a7223732..f5f1939c8fa4 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c +++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c @@ -102,3 +102,20 @@ ArmHasSecurityExtensions ( { return ((ArmReadIdPfr1 () & ARM_PFR1_SEC) !=3D 0); } + +/** Checks if CCIDX is implemented. + + @retval TRUE CCIDX is implemented. + @retval FALSE CCIDX is not implemented. +**/ +BOOLEAN +EFIAPI +ArmHasCcidx ( + VOID + ) +{ + UINTN Mmfr4; + + Mmfr4 =3D ArmReadIdMmfr4 (); + return (((Mmfr4 >> 24) & 0xF) =3D=3D 1) ? TRUE : FALSE; +} --=20 2.26.2 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. 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