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From: "Rebecca Cran" <rebecca@nuviainc.com>
To: devel@edk2.groups.io
Cc: Rebecca Cran <rebecca@nuviainc.com>,
	Michael D Kinney <michael.d.kinney@intel.com>,
	Liming Gao <gaoliming@byosoft.com.cn>,
	Zhiguang Liu <zhiguang.liu@intel.com>,
	Leif Lindholm <leif@nuviainc.com>,
	Ard Biesheuvel <ard.biesheuvel@arm.com>,
	Sami Mujawar <Sami.Mujawar@arm.com>
Subject: [PATCH v4 06/11] ArmPkg: Add helper to read CCIDX status
Date: Mon, 30 Nov 2020 17:33:53 -0700	[thread overview]
Message-ID: <20201201003358.8780-7-rebecca@nuviainc.com> (raw)
In-Reply-To: <20201201003358.8780-1-rebecca@nuviainc.com>

Add a helper function to determine CCIDX support.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
---
 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/ArmLib.h
index 5a27b7c2fc27..87c3a6f1ecac 100644
--- a/ArmPkg/Include/Library/ArmLib.h
+++ b/ArmPkg/Include/Library/ArmLib.h
@@ -132,6 +132,12 @@ ArmIsArchTimerImplemented (
   VOID
   );
 
+BOOLEAN
+EFIAPI
+ArmIsCcidxImplemented (
+  VOID
+  );
+
 UINTN
 EFIAPI
 ArmReadIdPfr0 (
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c b/ArmPkg/Library/ArmLib/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 = ArmReadIdMmfr2 ();
+  return (((Mmfr2 >> 20) & 0xF) == 1) ? TRUE : FALSE;
+}
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c b/ArmPkg/Library/ArmLib/Arm/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 = ArmReadIdMmfr4 ();
+  return (((Mmfr4 >> 24) & 0xF) == 1) ? TRUE : FALSE;
+}
-- 
2.26.2


  parent reply	other threads:[~2020-12-01  0:34 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-01  0:33 [PATCH v4 00/11] ArmPkg,MdePkg: Add Universal/Smbios and Drivers/FirmwareVersionInfoPeim Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 01/11] ArmPkg: Add ARM SMC Architecture functions to ArmStdSmc.h Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 02/11] MdePkg: Update IndustryStandard/SmBios.h with processor status data Rebecca Cran
2020-12-01  0:39   ` 回复: " gaoliming
2020-12-01  0:33 ` [PATCH v4 03/11] ArmPkg: Add register encoding definition for MMFR2 Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 04/11] ArmPkg: Add helper to read the Memory Model Features Register 2 Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 05/11] ArmPkg: Add helper function to read the Memory Model Feature Register 4 Rebecca Cran
2020-12-16 11:06   ` Sami Mujawar
2020-12-01  0:33 ` Rebecca Cran [this message]
2020-12-16 11:06   ` [PATCH v4 06/11] ArmPkg: Add helper to read CCIDX status Sami Mujawar
2020-12-01  0:33 ` [PATCH v4 07/11] ArmPkg: Fix the return type of the ReadCCSIDR function Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 08/11] ArmPkg: Update ArmLibPrivate.h with cache register definitions Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 09/11] ArmPkg: Add FirmwareVersionInfoPeim Rebecca Cran
2020-12-02 15:20   ` Ard Biesheuvel
2020-12-02 15:31     ` Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 10/11] ArmPkg: Add Universal/Smbios, a generic SMBIOS library for ARM Rebecca Cran
2020-12-01  0:33 ` [PATCH v4 11/11] ArmPkg: Add definition of the maximum cache level in ARMv8-A Rebecca Cran
2020-12-01 21:26 ` [PATCH v4 00/11] ArmPkg,MdePkg: Add Universal/Smbios and Drivers/FirmwareVersionInfoPeim Rebecca Cran

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