From: Dave Martin <Dave.Martin@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
"Yu-cheng Yu" <yu-cheng.yu@intel.com>,
"H.J. Lu" <hjl.tools@gmail.com>, "Arnd Bergmann" <arnd@arndb.de>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Andrew Jones" <drjones@redhat.com>,
"Will Deacon" <will.deacon@arm.com>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Kristina Martšenko" <kristina.martsenko@arm.com>,
"Szabolcs Nagy" <szabolcs.nagy@arm.com>,
"Sudakshina Das" <sudi.das@arm.com>,
"Paul Elliott" <paul.elliott@arm.com>
Subject: [PATCH 3/8] arm64: docs: cpu-feature-registers: Document ID_AA64PFR1_EL1
Date: Fri, 24 May 2019 11:25:28 +0100 [thread overview]
Message-ID: <1558693533-13465-4-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1558693533-13465-1-git-send-email-Dave.Martin@arm.com>
Commit d71be2b6c0e1 ("arm64: cpufeature: Detect SSBS and advertise
to userspace") exposes ID_AA64PFR1_EL1 to userspace, but didn't
update the documentation to match.
Add it.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
---
Documentation/arm64/cpu-feature-registers.txt | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/Documentation/arm64/cpu-feature-registers.txt b/Documentation/arm64/cpu-feature-registers.txt
index 684a0da..54d2bfa 100644
--- a/Documentation/arm64/cpu-feature-registers.txt
+++ b/Documentation/arm64/cpu-feature-registers.txt
@@ -160,7 +160,15 @@ infrastructure:
x--------------------------------------------------x
- 3) MIDR_EL1 - Main ID Register
+ 3) ID_AA64PFR1_EL1 - Processor Feature Register 1
+ x--------------------------------------------------x
+ | Name | bits | visible |
+ |--------------------------------------------------|
+ | SSBS | [7-4] | y |
+ x--------------------------------------------------x
+
+
+ 4) MIDR_EL1 - Main ID Register
x--------------------------------------------------x
| Name | bits | visible |
|--------------------------------------------------|
@@ -179,7 +187,7 @@ infrastructure:
as available on the CPU where it is fetched and is not a system
wide safe value.
- 4) ID_AA64ISAR1_EL1 - Instruction set attribute register 1
+ 5) ID_AA64ISAR1_EL1 - Instruction set attribute register 1
x--------------------------------------------------x
| Name | bits | visible |
@@ -201,7 +209,7 @@ infrastructure:
| DPB | [3-0] | y |
x--------------------------------------------------x
- 5) ID_AA64MMFR2_EL1 - Memory model feature register 2
+ 6) ID_AA64MMFR2_EL1 - Memory model feature register 2
x--------------------------------------------------x
| Name | bits | visible |
@@ -209,7 +217,7 @@ infrastructure:
| AT | [35-32] | y |
x--------------------------------------------------x
- 6) ID_AA64ZFR0_EL1 - SVE feature ID register 0
+ 7) ID_AA64ZFR0_EL1 - SVE feature ID register 0
x--------------------------------------------------x
| Name | bits | visible |
--
2.1.4
next prev parent reply other threads:[~2019-05-24 10:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 10:25 [PATCH 0/8] arm64: ARMv8.5-A: Branch Target Identification support Dave Martin
2019-05-24 10:25 ` [PATCH 1/8] binfmt_elf: Extract .note.gnu.property from an ELF file Dave Martin
2019-05-24 10:25 ` [PATCH 2/8] mm: Reserve asm-generic prot flag 0x10 for arch use Dave Martin
2019-05-24 10:25 ` Dave Martin [this message]
2019-05-24 10:25 ` [PATCH 4/8] arm64: Basic Branch Target Identification support Dave Martin
2019-05-24 13:02 ` Mark Rutland
2019-05-24 14:53 ` Dave Martin
2019-05-24 15:38 ` Mark Rutland
2019-05-24 16:12 ` Dave Martin
2019-05-24 17:19 ` Mark Rutland
2019-05-28 10:52 ` Dave P Martin
2019-06-06 17:11 ` Catalin Marinas
2019-06-06 17:23 ` Dave Martin
2019-06-06 17:34 ` Yu-cheng Yu
2019-06-06 17:56 ` Dave Martin
2019-05-24 10:25 ` [PATCH 5/8] elf: Parse program properties before destroying the old process Dave Martin
2019-05-24 10:25 ` [PATCH 6/8] elf: Allow arch to tweak initial mmap prot flags Dave Martin
2019-05-24 10:25 ` [PATCH 7/8] arm64: elf: Enable BTI at exec based on ELF program properties Dave Martin
2019-05-24 10:25 ` [PATCH 8/8] arm64: BTI: Decode BYTPE bits when printing PSTATE Dave Martin
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