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[174.52.16.57]) by smtp.gmail.com with ESMTPSA id 22sm57899pjb.40.2020.11.30.16.34.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Nov 2020 16:34:43 -0800 (PST) From: "Rebecca Cran" To: devel@edk2.groups.io Cc: Rebecca Cran , Michael D Kinney , Liming Gao , Zhiguang Liu , Leif Lindholm , Ard Biesheuvel , Sami Mujawar Subject: [edk2-devel] [PATCH v4 06/11] ArmPkg: Add helper to read CCIDX status Date: Mon, 30 Nov 2020 17:33:53 -0700 Message-Id: <20201201003358.8780-7-rebecca@nuviainc.com> In-Reply-To: <20201201003358.8780-1-rebecca@nuviainc.com> References: <20201201003358.8780-1-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=1606782886; bh=ZG3P+qr1kdRYhDCIp5hUp0BJMjI+l8r3T7XrpnuvPn4=; h=Cc:Date:From:Reply-To:Subject:To; b=T0tioT7s/pXQi8ixq+OFDyQ8f6I3Fq+9VSVUQxVMdITi/N7k6q/3SsgZgvYTofvFlS/ JLEgwe62YDBhN4lCbq4VEjibk6sXUbPx4KktPZdAJKLm+Ch4+KkRcgLidkZxQh1j4ppxP ppOBuTXwWO3vudiNiIp1KtC0VCGaOQ+8FEM= 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 --- ArmPkg/Include/Library/ArmLib.h | 6 ++++++ ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c | 12 ++++++++++++ ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c | 12 ++++++++++++ 3 files changed, 30 insertions(+) diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLi= b.h index 5a27b7c2fc27..87c3a6f1ecac 100644 --- a/ArmPkg/Include/Library/ArmLib.h +++ b/ArmPkg/Include/Library/ArmLib.h @@ -132,6 +132,12 @@ ArmIsArchTimerImplemented ( VOID ); =20 +BOOLEAN +EFIAPI +ArmIsCcidxImplemented ( + VOID + ); + UINTN EFIAPI ArmReadIdPfr0 ( diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c b/ArmPkg/Library/Ar= mLib/AArch64/AArch64Lib.c index 3fbd591192e2..915c2cacdd99 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c @@ -71,3 +71,15 @@ ArmCleanDataCache ( ArmDataSynchronizationBarrier (); AArch64DataCacheOperation (ArmCleanDataCacheEntryBySetWay); } + +BOOLEAN +EFIAPI +ArmIsCcidxImplemented ( + VOID + ) +{ + UINTN Mmfr2; + + Mmfr2 =3D ArmReadIdMmfr2 (); + 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 2c4a23e1a1b2..7331b1c678f3 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c +++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c @@ -71,3 +71,15 @@ ArmCleanDataCache ( ArmDataSynchronizationBarrier (); ArmV7DataCacheOperation (ArmCleanDataCacheEntryBySetWay); } + +BOOLEAN +EFIAPI +ArmIsCcidxImplemented ( + 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. View/Reply Online (#68101): https://edk2.groups.io/g/devel/message/68101 Mute This Topic: https://groups.io/mt/78622919/1787277 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-