sync: rvck #297: riscv支持cpu并行启动#242
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mainline inclusion from mainline-6.11-rc1 commit c0e81a455e23f77683178b8ae32651df5841f065 category: feature bugzilla: RVCK-Project/rvck#292 -------------------------------- Provide stub functions for SMT related parallel bring up functions so that HOTPLUG_PARALLEL can work without HOTPLUG_SMT. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20240716-loongarch-hotplug-v3-1-af59b3bb35c8@flygoat.com [sync from rvck.] Signed-off-by: WeiHao Li <cn.liweihao@gmail.com>
…up() mainline inclusion from mainline-6.11-rc2 commit 2dce993165088dbe728faa21547e3b74213b6732 category: feature bugzilla: RVCK-Project/rvck#292 -------------------------------- CONFIG_HOTPLUG_PARALLEL expects the architecture to implement arch_cpuhp_init_parallel_bringup() to decide whether paralllel hotplug is possible and to do the necessary architecture specific initialization. There are architectures which can enable it unconditionally and do not require architecture specific initialization. Provide a weak fallback for arch_cpuhp_init_parallel_bringup() so that such architectures are not forced to implement empty stub functions. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20240716-loongarch-hotplug-v3-2-af59b3bb35c8@flygoat.com [sync from rvck.] Signed-off-by: WeiHao Li <cn.liweihao@gmail.com>
mainline inclusion from mainline-6.18-rc7 commit 231fb999a9acd17b1335e79f0fd6fc627353a6bc category: feature bugzilla: RVCK-Project/rvck#292 -------------------------------- The core kernel already supports parallel bringup of secondary CPUs (aka HOTPLUG_PARALLEL). The x86 and MIPS architectures already use HOTPLUG_PARALLEL and ARM is also moving toward it. On RISC-V, there is no arch specific global data accessed in the RISC-V secondary CPU bringup path so enabling HOTPLUG_PARALLEL for RISC-V would only require: 1) Providing RISC-V specific arch_cpuhp_kick_ap_alive() 2) Calling cpuhp_ap_sync_alive() from smp_callin() This patch is tested natively with OpenSBI on QEMU RV64 virt machine with 64 cores and also tested with KVM RISC-V guest with 32 VCPUs. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Link: https://patch.msgid.link/20250905122512.71684-1-apatel@ventanamicro.com Signed-off-by: Paul Walmsley <pjw@kernel.org> [sync from rvck.] Signed-off-by: WeiHao Li <cn.liweihao@gmail.com>
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开始测试 log: https://github.com/RVCK-Project/rvck-olk/actions/runs/28864367623 参数解析结果
测试完成 详细结果:
Kunit Test Resultkunit test failed
Kernel Build Result
Check Patch Result
LAVA Check (qemu)
result: Lava check done!
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Sync commits from rvck PR 297.
Source PR: RVCK-Project/rvck#297