kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-10 20:48:12 +00:00
Code Issues Releases Packages Activity
linux/arch/arm64/boot
History
Willow Cunningham f0f2e5aa56 arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5 
[ Upstream commit 058387d9c6 ]

Set the cache-line-size parameter of the L2 cache for each core to the
correct value of 64 bytes.

Previously, the L2 cache line size was incorrectly set to 128 bytes
for the Broadcom BCM2712. This causes validation tests for the
Performance Application Programming Interface (PAPI) tool to fail as
they depend on sysfs accurately reporting cache line sizes.

The correct value of 64 bytes is stated in the official documentation of
the ARM Cortex A-72, which is linked in the comments of
arm64/boot/dts/broadcom/bcm2712.dtsi as the source for cache-line-size.

Fixes: faa3381267 ("arm64: dts: broadcom: Add minimal support for Raspberry Pi 5")
Signed-off-by: Willow Cunningham <willow.e.cunningham@maine.edu>
Link: https://lore.kernel.org/r/20241007212954.214724-1-willow.e.cunningham@maine.edu
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-01-02 10:34:10 +01:00
..
dts arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5 2025-01-02 10:34:10 +01:00
.gitignore arm64: boot: Support Flat Image Tree 2024-04-12 15:48:32 +01:00
install.sh kbuild: Abort make on install failures 2024-07-20 13:34:54 +09:00
Makefile arm64: boot: add Image.xz support 2024-09-01 20:43:27 -07:00