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>
Subject: [PATCH v4 04/10] ArmPkg: Add helper to read the Memory Model Features Register 2
Date: Mon, 7 Dec 2020 10:54:21 -0700 [thread overview]
Message-ID: <20201207175427.28712-5-rebecca@nuviainc.com> (raw)
In-Reply-To: <20201207175427.28712-1-rebecca@nuviainc.com>
Add helper function to read the MMFR2 register. We will need this to
determine CCIDX support.
Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
---
ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h | 6 ++++++
ArmPkg/Library/ArmLib/AArch64/AArch64Support.S | 3 +++
2 files changed, 9 insertions(+)
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h
index b2c8a8ea0b84..d6bcfc3b82ae 100644
--- a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h
+++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h
@@ -35,5 +35,11 @@ ArmCleanInvalidateDataCacheEntryBySetWay (
IN UINTN SetWayFormat
);
+UINTN
+EFIAPI
+ArmReadIdMmfr2 (
+ VOID
+ );
+
#endif // __AARCH64_LIB_H__
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
index 199374ff59e3..874bc2866ac3 100644
--- a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
+++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
@@ -424,6 +424,9 @@ ASM_FUNC(ArmCallWFI)
wfi
ret
+ASM_FUNC(ArmReadIdMmfr2)
+ mrs x0, ID_AA64MMFR2_EL1 // read EL1 MMFR2
+ ret
ASM_FUNC(ArmReadMpidr)
mrs x0, mpidr_el1 // read EL1 MPIDR
--
2.26.2
next prev parent reply other threads:[~2020-12-07 17:54 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-07 17:54 [PATCH v4 00/10] ArmPkg,MdePkg: Add Universal/Smbios, and related changes Rebecca Cran
2020-12-07 17:54 ` [PATCH v4 01/10] ArmPkg: Add ARM SMC Architecture functions to ArmStdSmc.h Rebecca Cran
2020-12-15 18:06 ` Leif Lindholm
2020-12-16 11:23 ` [edk2-devel] " Sami Mujawar
2020-12-07 17:54 ` [PATCH v4 02/10] MdePkg: Update IndustryStandard/SmBios.h with processor status data Rebecca Cran
2020-12-08 4:50 ` 回复: " gaoliming
2020-12-07 17:54 ` [PATCH v4 03/10] ArmPkg: Add register encoding definition for MMFR2 Rebecca Cran
2020-12-15 18:42 ` Leif Lindholm
2020-12-16 11:31 ` [edk2-devel] " Sami Mujawar
2020-12-07 17:54 ` Rebecca Cran [this message]
2020-12-15 19:11 ` [PATCH v4 04/10] ArmPkg: Add helper to read the Memory Model Features Register 2 Leif Lindholm
2020-12-16 11:06 ` [edk2-devel] " Sami Mujawar
2020-12-17 13:38 ` Laszlo Ersek
2020-12-17 13:47 ` Ard Biesheuvel
2020-12-17 18:04 ` Leif Lindholm
2020-12-17 18:19 ` Rebecca Cran
2020-12-17 17:57 ` Leif Lindholm
2020-12-07 17:54 ` [PATCH v4 05/10] ArmPkg: Add helper function to read the Memory Model Feature Register 4 Rebecca Cran
2020-12-16 11:23 ` [edk2-devel] " Sami Mujawar
2020-12-07 17:54 ` [PATCH v4 06/10] ArmPkg: Add helper to read CCIDX status Rebecca Cran
2020-12-16 11:23 ` [edk2-devel] " Sami Mujawar
2020-12-07 17:54 ` [PATCH v4 07/10] ArmPkg: Fix the return type of the ReadCCSIDR function Rebecca Cran
2020-12-15 19:24 ` Leif Lindholm
2020-12-16 11:31 ` [edk2-devel] " Sami Mujawar
2020-12-07 17:54 ` [PATCH v4 08/10] ArmPkg: Update ArmLibPrivate.h with cache register definitions Rebecca Cran
2020-12-15 19:27 ` Leif Lindholm
2020-12-07 17:54 ` [PATCH v4 09/10] ArmPkg: Add definition of the maximum cache level in ARMv8-A Rebecca Cran
2020-12-15 19:27 ` Leif Lindholm
2020-12-16 11:31 ` [edk2-devel] " Sami Mujawar
2020-12-07 17:54 ` [PATCH v4 10/10] ArmPkg: Add Universal/Smbios, a generic SMBIOS library for ARM Rebecca Cran
2020-12-15 19:29 ` Leif Lindholm
2020-12-15 21:14 ` Rebecca Cran
2020-12-16 15:13 ` [edk2-devel] " Sami Mujawar
2020-12-16 15:21 ` Rebecca Cran
2020-12-19 3:14 ` Rebecca Cran
[not found] ` <16513B32D4BA613C.12945@groups.io>
2020-12-29 15:10 ` Sami Mujawar
2021-01-03 23:52 ` Rebecca Cran
2021-01-04 10:21 ` Sami Mujawar
2020-12-14 15:45 ` [PATCH v4 00/10] ArmPkg,MdePkg: Add Universal/Smbios, and related changes Rebecca Cran
2020-12-15 18:36 ` Leif Lindholm
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