mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-26 19:00:25 +00:00
Code Issues Releases Wiki Activity

arm64: docs: cpu-feature-registers: Document ID_AA64PFR1_EL1

Browse source 
Commit d71be2b6c0 ("arm64: cpufeature: Detect SSBS and advertise
to userspace") exposes ID_AA64PFR1_EL1 to userspace, but didn't
update the documentation to match.

Add it.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Dave Martin 2019-10-23 18:52:22 +01:00 committed by Catalin Marinas
parent 7db3e57e6a
commit ade12b8631
1 changed files with 11 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
Documentation/arm64/cpu-feature-registers.rst
View file

@ -168,8 +168,15 @@ infrastructure:
+------------------------------+---------+---------+
3) MIDR_EL1 - Main ID Register
3) ID_AA64PFR1_EL1 - Processor Feature Register 1
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
| SSBS | [7-4] | y |
+------------------------------+---------+---------+
4) MIDR_EL1 - Main ID Register
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
@ -188,7 +195,7 @@ 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
+------------------------------+---------+---------+
| Name | bits | visible |
@ -210,7 +217,7 @@ infrastructure:
| DPB | [3-0] | y |
+------------------------------+---------+---------+
5) ID_AA64MMFR2_EL1 - Memory model feature register 2
6) ID_AA64MMFR2_EL1 - Memory model feature register 2
+------------------------------+---------+---------+
| Name | bits | visible |
@ -218,7 +225,7 @@ infrastructure:
| AT | [35-32] | y |
+------------------------------+---------+---------+
6) ID_AA64ZFR0_EL1 - SVE feature ID register 0
7) ID_AA64ZFR0_EL1 - SVE feature ID register 0
+------------------------------+---------+---------+
| Name | bits | visible |