From nobody Thu Apr 18 21:31:07 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+69643+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+69643+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1609801127; cv=none; d=zohomail.com; s=zohoarc; b=E5wjJ6uZfSyaKQjUi8G8198ZkXiFLT+cqCC8B847dRgwoqA8Kp/bx81rIULX1Y9DBI1XduWkeSDTHfUXWcwzoqrws1o3Ftn+EUP6A9WIXa1lgSZq1zkOKAmIqjweFj9oOQ8I6jwJ4RSkUj4Y7ghWHZth9+orb8F/lqlpFyXqpy4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1609801127; 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=1/B8BeZXt7Q+ONneWTAzoUCx7NMxrAswFUJzzdloTrY=; b=OR0qn1wUImDs5aw2UcmLT5p03WyjIiAx7xxia8sGlorENrD9qzHk+p/o6/wjl8XtLusPVZeeyAgn4p14Sp1H8YwqTtKEDeu3fpQa4pFHfQPhrUHV88Q9D5BuGxynQ4i+rV7b9IIIx/o84GecbiRVN1S5e+BuHw/LRElIE+zrZc4= 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+69643+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1609801127968438.1935076721129; Mon, 4 Jan 2021 14:58:47 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id ZBHfYY1788612x16aNQYzgve; Mon, 04 Jan 2021 14:58:47 -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.web11.77.1609801127200246077 for ; Mon, 04 Jan 2021 14:58:47 -0800 X-Received: by mail-pl1-f181.google.com with SMTP id t6so15349354plq.1 for ; Mon, 04 Jan 2021 14:58:47 -0800 (PST) X-Gm-Message-State: rTtczqpScGyOhb3fb5rvpLiZx1787277AA= X-Google-Smtp-Source: ABdhPJwn2IszVXN0XY9Ia49NyiJjhBrz8TvfXcjiIX4rvf9HyleMGQQcScsSnUHrIkbYnqZzEzMDwg== X-Received: by 2002:a17:90a:5501:: with SMTP id b1mr1060439pji.7.1609801126500; Mon, 04 Jan 2021 14:58:46 -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.66.2021.01.04.14.58.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jan 2021 14:58:46 -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 05/23] ArmPkg: Add helper function to read the Memory Model Feature Register 4 Date: Mon, 4 Jan 2021 15:58:12 -0700 Message-Id: <20210104225830.12606-6-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=1609801127; bh=0v5EhBoCFYmRtDLlVbEsRu8Pnd9PNXxUN2QT+pjZVss=; h=Cc:Date:From:Reply-To:Subject:To; b=OcHtr3inBIAVQySAR5W3VqutbEfKeRJ1bFRS+BrGH2mgPPHizCR927xlYPPDw+HhAz7 1ED4h5CnulQ6nWjEMZ5ncTPEZxiiJSJA5+NeN2fH6l8LZMw4D3QG5wAtFRvs1Tart6CBP iZoGWhisotYDJk6S6vVzaz/WGpwHUABfuYo= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Type: text/plain; charset="utf-8" In AARCH32, CCIDX support is indicated in the MMFR4 register - unlike under AARCH64 where it's in MMFR2. Add a helper function to read it. Signed-off-by: Rebecca Cran Reviewed-by: Sami Mujawar Reviewed-by: Leif Lindholm --- ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h | 8 ++++++-- ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | 4 ++++ ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm | 4 ++++ 3 files changed, 14 insertions(+), 2 deletions(-) diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h b/ArmPkg/Library/ArmLib/A= rm/ArmV7Lib.h index bb7bda0a3aeb..dcf6723b803b 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h +++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h @@ -48,9 +48,13 @@ ArmCleanInvalidateDataCacheEntryBySetWay ( IN UINTN SetWayFormat ); =20 -UINTN +/** Reads the ID_MMFR4 register. + + @return The contents of the ID_MMFR4 register. +**/ +UINT32 EFIAPI -ArmReadIdPfr0 ( +ArmReadIdMmfr4 ( VOID ); =20 diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S b/ArmPkg/Library/A= rmLib/Arm/ArmLibSupportV7.S index 01c91b10fcb7..a60a2f634132 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S @@ -60,6 +60,10 @@ ASM_FUNC(ArmDisableInterrupts) isb bx LR =20 +ASM_FUNC(ArmReadIdMmfr4) + mrc p15,0,r0,c0,c2,6 @ Read ID_MMFR4 Register + bx lr + // UINT32 // ReadCCSIDR ( // IN UINT32 CSSELR diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm b/ArmPkg/Library= /ArmLib/Arm/ArmLibSupportV7.asm index 26ffa331b929..1679b09b797a 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm @@ -64,6 +64,10 @@ isb bx LR =20 + RVCT_ASM_EXPORT ArmReadIdMmfr4 + mrc p15,0,r0,c0,c2,6 ; Read ID_MMFR4 Register + bx LR + // UINT32 // ReadCCSIDR ( // 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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