aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/arm64/cpu-feature-registers.rst
diff options
context:
space:
mode:
authorMarc Zyngier <maz@kernel.org>2022-04-20 13:21:12 +0100
committerMarc Zyngier <maz@kernel.org>2022-04-20 13:24:44 +0100
commit69bb02ebc38ace438c9cd7c5315cfe43862b51fe (patch)
treea40971e4b2c56ea563a3c573a2ad5f606982021f /Documentation/arm64/cpu-feature-registers.rst
parentarm64: Add RV and RN fields for ESR_ELx_WFx_ISS (diff)
downloadlinux-dev-69bb02ebc38ace438c9cd7c5315cfe43862b51fe.tar.xz
linux-dev-69bb02ebc38ace438c9cd7c5315cfe43862b51fe.zip
arm64: Add HWCAP advertising FEAT_WFXT
In order to allow userspace to enjoy WFET, add a new HWCAP that advertises it when available. Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20220419182755.601427-9-maz@kernel.org
Diffstat (limited to 'Documentation/arm64/cpu-feature-registers.rst')
-rw-r--r--Documentation/arm64/cpu-feature-registers.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 749ae970c319..04ba83e1965f 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -290,6 +290,8 @@ infrastructure:
+------------------------------+---------+---------+
| RPRES | [7-4] | y |
+------------------------------+---------+---------+
+ | WFXT | [3-0] | y |
+ +------------------------------+---------+---------+
Appendix I: Example