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authorWill Deacon <will@kernel.org>2026-10-09 11:07:22 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2026-10-14 14:32:38 +0100
commitc8491bbf35e5e1e30f349e7629bae2e5e2eeddda (patch)
tree8f55484c20afa8fec4dd62d3f24668980e9b4b72 /tools/perf/scripts/python/flamegraph.py
parentf0a14972b5b5080272a5410f6e2da173de397711 (diff)
arm64: smp: Defer update of secondary CPU capabilities
check_local_cpu_capabilities() runs relatively early during the boot of each secondary CPU and, despite its name, calls update_cpu_capabilities() to manipulate the global 'system_cpucaps' based on the features detected by the incoming CPU. In preparation for parallel bringup of secondary CPUs, move the call to update_cpu_capabilities() into update_cpu_features(), allowing check_local_cpu_capabilities() to run concurrently in future, as it now only performs local verification of the incoming CPU. Reviewed-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Will Deacon <will@kernel.org> Tested-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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