From nobody Wed Apr 24 05:19:59 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+69648+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+69648+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1609801137; cv=none; d=zohomail.com; s=zohoarc; b=OxrfqDh3H7IvyYvSRriKmR8VLMuJmK14YnMGy+GTvtcIIf/6qHz5lbO+7+vSUIa80H7G8X+KTdpXmOVeAhvHQJj1Y+p/U1CQzispr5qMlbWUVKvEB2T1dZwS5nBn6nqu8B8ozFLJNdkZKHHOmdUFxtJaKRB8CWeOC9BdxVQVlYM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1609801137; 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=E4qHBO5j9bW6jKIELdHABtrShkjJIEtbWsHNVxIsOgE=; b=ZUfkbUMqfxZZHGBOMOFKbWWlev5Sb12DBIxNgjsOjZ5ckl2mfw2x0ZiifBYAoccsbO0QlqTD2zfs/BpFdjr4ladkx+loW58jvDexCXhm/Rz4RRo/Xbv9JdXo84Quta7htATpnzr8j8yZLI7p1e2b6gj995rku40AltcVcjj6k0s= 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+69648+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1609801137415486.8836955615344; Mon, 4 Jan 2021 14:58:57 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id gd2rYY1788612xK22efra4jZ; Mon, 04 Jan 2021 14:58:57 -0800 X-Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) by mx.groups.io with SMTP id smtpd.web09.71.1609801136557163341 for ; Mon, 04 Jan 2021 14:58:56 -0800 X-Received: by mail-pl1-f181.google.com with SMTP id 4so15340259plk.5 for ; Mon, 04 Jan 2021 14:58:56 -0800 (PST) X-Gm-Message-State: Do1KJWS8CXr7c2NDwhhHmsQJx1787277AA= X-Google-Smtp-Source: ABdhPJy/2KyAYNR1YQJXuvDb6y1ZofGIkV+Eq2jYRAtZpmziw1XWlY+FZNjPYMnakqzHk+5QZTHt6g== X-Received: by 2002:a17:90a:a502:: with SMTP id a2mr1096665pjq.218.1609801135630; Mon, 04 Jan 2021 14:58:55 -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.66.2021.01.04.14.58.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jan 2021 14:58:54 -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 Subject: [edk2-devel] [PATCH v5 10/23] ArmPkg: Add helper to read the CCSIDR2 register Date: Mon, 4 Jan 2021 15:58:17 -0700 Message-Id: <20210104225830.12606-11-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=1609801137; bh=KD3u/Sx24WTGtYoigaqcPoRK65W2EOqpybz5pVkgWfA=; h=Cc:Date:From:Reply-To:Subject:To; b=DIzUamKEbKWUf9hfEeAqt1Tk6HrP2OhRgHKfWoN1oSHS9Ys8RF7uYnN4pLk5M5ta19+ O9UsevQfF9uadzRErTdFgCsebwAVozMyVusbWGnKtm893BrnukbisNq3ke+j0VbBYH3wo 5As0Ye2m0htTW+T3MiAnKFnHcaiuVgC0ieM= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Type: text/plain; charset="utf-8" Add helper function to read the CCSIDR2 register. This is used when CCIDX is supported in AARCH32 mode. Signed-off-by: Rebecca Cran Reviewed-by: Leif Lindholm --- ArmPkg/Library/ArmLib/ArmLibPrivate.h | 11 +++++++++++ ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | 10 ++++++++++ ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm | 10 ++++++++++ 3 files changed, 31 insertions(+) diff --git a/ArmPkg/Library/ArmLib/ArmLibPrivate.h b/ArmPkg/Library/ArmLib/= ArmLibPrivate.h index 5d0224080f3f..e0ec065f1f4a 100644 --- a/ArmPkg/Library/ArmLib/ArmLibPrivate.h +++ b/ArmPkg/Library/ArmLib/ArmLibPrivate.h @@ -170,6 +170,17 @@ ReadCCSIDR ( IN UINT32 CSSELR ); =20 +/** Reads the CCSIDR2 for the specified cache. + + @param CSSELR The CSSELR cache selection register value + + @return The contents of the CCSIDR2 register for the specified cache. +**/ +UINT32 +ReadCCSIDR2 ( + IN UINT32 CSSELR + ); + UINT32 ReadCLIDR ( VOID diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S b/ArmPkg/Library/A= rmLib/Arm/ArmLibSupportV7.S index af61dbee5261..8f75f5051083 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S @@ -74,6 +74,16 @@ ASM_FUNC(ReadCCSIDR) mrc p15,1,r0,c0,c0,0 @ Read current CP15 Cache Size ID Register (CCSID= R) bx lr =20 +// UINT32 +// ReadCCSIDR2 ( +// IN UINT32 CSSELR +// ) +ASM_FUNC(ReadCCSIDR2) + mcr p15,2,r0,c0,c0,0 @ Write Cache Size Selection Register (CSSELR) + isb + mrc p15,1,r0,c0,c2,0 @ Read current CP15 Cache Size ID Register (CCSID= R2) + bx lr + // UINT32 // ReadCLIDR ( // IN UINT32 CSSELR diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm b/ArmPkg/Library= /ArmLib/Arm/ArmLibSupportV7.asm index 81f3cb79994c..2fa7a046c0c6 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm @@ -78,6 +78,16 @@ mrc p15,1,r0,c0,c0,0 ; Read current CP15 Cache Size ID Register (CCSIDR) bx lr =20 +// UINT32 +// ReadCCSIDR2 ( +// IN UINT32 CSSELR +// ) + RVCT_ASM_EXPORT ReadCCSIDR2 + mcr p15,2,r0,c0,c0,0 ; Write Cache Size Selection Register (CSSELR) + isb + mrc p15,1,r0,c0,c2,0 ; Read current CP15 Cache Size ID Register (CCSIDR2) + bx lr + // UINT32 // ReadCLIDR ( // IN UINT32 CSSELR --=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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