From nobody Sun Feb 8 15:58:24 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F1EB3C001B0 for ; Mon, 17 Jul 2023 23:36:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231695AbjGQXgx (ORCPT ); Mon, 17 Jul 2023 19:36:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230022AbjGQXgp (ORCPT ); Mon, 17 Jul 2023 19:36:45 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D91E7E48 for ; Mon, 17 Jul 2023 16:35:56 -0700 (PDT) Message-ID: <20230717223226.417564255@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1689635762; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=yZ0mIAoyX+o+dAiLvWiSm6ygjzxrkLfGxB3sGPnAg2c=; b=j37UAfGl4374PyDMfypHyFZr6u6FXj8Ubc7/jU0U6EzVKvE3VQLhnt5OX6sze5a/o9hJrO NBqQ2wsjnb0rg1qKLks034DHjvhiADDLKNFnBT2D88L8vudqk58u/uXS1SrGyPPRe1Mb0D Cc7RI5G1SS7UPZ7F5qS97y24ZyrIw7LKIlnNxMMMnS/DehhdtBCibL0JNs9GSnew8WYPwy 89Tb8dye/mnCrid+CpXC6NFJ4meINN+7LBV1Iio2vs1sck1gfsWngXZ2agOomzLZMkSqcX FZxAXeSeicpu1YjlFkPWNkUoIy1ZywbDRyQKpmGwIJQI+vm77UMniH4GkqsZGw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1689635762; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=yZ0mIAoyX+o+dAiLvWiSm6ygjzxrkLfGxB3sGPnAg2c=; b=2ekXGJoztTgdFaxyYJhCvroYnfM6VbnkFbiqK3VbgT2e5qfM8ryqXyv0hO3IlLE8STOBiA 6W68dvkp0I9SiKCQ== From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Linus Torvalds , Andrew Cooper , Tom Lendacky , Paolo Bonzini , Wei Liu , Arjan van de Ven , Juergen Gross Subject: [patch 56/58] x86/apic: Wrap IPI calls into helper functions References: <20230717223049.327865981@linutronix.de> MIME-Version: 1.0 Date: Tue, 18 Jul 2023 01:16:01 +0200 (CEST) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Move them to one place so the static call conversion gets simpler. No functional change. Signed-off-by: Thomas Gleixner --- arch/x86/hyperv/hv_spinlock.c | 2 +- arch/x86/include/asm/apic.h | 30 ++++++++++++++++++++++++++++++ arch/x86/kernel/apic/apic.c | 2 +- arch/x86/kernel/apic/hw_nmi.c | 4 +++- arch/x86/kernel/apic/ipi.c | 16 ++++++++-------- arch/x86/kernel/apic/vector.c | 6 +++--- arch/x86/kernel/cpu/mce/inject.c | 3 +-- arch/x86/kernel/irq_work.c | 2 +- arch/x86/kernel/nmi_selftest.c | 2 +- arch/x86/kernel/smp.c | 2 +- arch/x86/kvm/vmx/posted_intr.c | 2 +- arch/x86/kvm/vmx/vmx.c | 2 +- arch/x86/platform/uv/uv_nmi.c | 2 +- 13 files changed, 53 insertions(+), 22 deletions(-) --- a/arch/x86/hyperv/hv_spinlock.c +++ b/arch/x86/hyperv/hv_spinlock.c @@ -20,7 +20,7 @@ static bool __initdata hv_pvspin =3D true; =20 static void hv_qlock_kick(int cpu) { - apic->send_IPI(cpu, X86_PLATFORM_IPI_VECTOR); + __apic_send_IPI(cpu, X86_PLATFORM_IPI_VECTOR); } =20 static void hv_qlock_wait(u8 *byte, u8 val) --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -401,6 +401,36 @@ static __always_inline void apic_icr_wri apic->icr_write(low, high); } =20 +static __always_inline void __apic_send_IPI(int cpu, int vector) +{ + apic->send_IPI(cpu, vector); +} + +static __always_inline void __apic_send_IPI_mask(const struct cpumask *mas= k, int vector) +{ + apic->send_IPI_mask(mask, vector); +} + +static __always_inline void __apic_send_IPI_mask_allbutself(const struct c= pumask *mask, int vector) +{ + apic->send_IPI_mask_allbutself(mask, vector); +} + +static __always_inline void __apic_send_IPI_allbutself(int vector) +{ + apic->send_IPI_allbutself(vector); +} + +static __always_inline void __apic_send_IPI_all(int vector) +{ + apic->send_IPI_all(vector); +} + +static __always_inline void __apic_send_IPI_self(int vector) +{ + apic->send_IPI_self(vector); +} + static __always_inline void apic_wait_icr_idle(void) { if (apic->wait_icr_idle) --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -502,7 +502,7 @@ static int lapic_timer_set_oneshot(struc static void lapic_timer_broadcast(const struct cpumask *mask) { #ifdef CONFIG_SMP - apic->send_IPI_mask(mask, LOCAL_TIMER_VECTOR); + __apic_send_IPI_mask(mask, LOCAL_TIMER_VECTOR); #endif } =20 --- a/arch/x86/kernel/apic/hw_nmi.c +++ b/arch/x86/kernel/apic/hw_nmi.c @@ -21,6 +21,8 @@ #include #include =20 +#include "local.h" + #ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF u64 hw_nmi_get_sample_period(int watchdog_thresh) { @@ -31,7 +33,7 @@ u64 hw_nmi_get_sample_period(int watchdo #ifdef arch_trigger_cpumask_backtrace static void nmi_raise_cpu_backtrace(cpumask_t *mask) { - apic->send_IPI_mask(mask, NMI_VECTOR); + __apic_send_IPI_mask(mask, NMI_VECTOR); } =20 void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_se= lf) --- a/arch/x86/kernel/apic/ipi.c +++ b/arch/x86/kernel/apic/ipi.c @@ -54,9 +54,9 @@ void apic_send_IPI_allbutself(unsigned i return; =20 if (static_branch_likely(&apic_use_ipi_shorthand)) - apic->send_IPI_allbutself(vector); + __apic_send_IPI_allbutself(vector); else - apic->send_IPI_mask_allbutself(cpu_online_mask, vector); + __apic_send_IPI_mask_allbutself(cpu_online_mask, vector); } =20 /* @@ -70,12 +70,12 @@ void native_smp_send_reschedule(int cpu) WARN(1, "sched: Unexpected reschedule of offline CPU#%d!\n", cpu); return; } - apic->send_IPI(cpu, RESCHEDULE_VECTOR); + __apic_send_IPI(cpu, RESCHEDULE_VECTOR); } =20 void native_send_call_func_single_ipi(int cpu) { - apic->send_IPI(cpu, CALL_FUNCTION_SINGLE_VECTOR); + __apic_send_IPI(cpu, CALL_FUNCTION_SINGLE_VECTOR); } =20 void native_send_call_func_ipi(const struct cpumask *mask) @@ -87,14 +87,14 @@ void native_send_call_func_ipi(const str goto sendmask; =20 if (cpumask_test_cpu(cpu, mask)) - apic->send_IPI_all(CALL_FUNCTION_VECTOR); + __apic_send_IPI_all(CALL_FUNCTION_VECTOR); else if (num_online_cpus() > 1) - apic->send_IPI_allbutself(CALL_FUNCTION_VECTOR); + __apic_send_IPI_allbutself(CALL_FUNCTION_VECTOR); return; } =20 sendmask: - apic->send_IPI_mask(mask, CALL_FUNCTION_VECTOR); + __apic_send_IPI_mask(mask, CALL_FUNCTION_VECTOR); } =20 #endif /* CONFIG_SMP */ @@ -221,7 +221,7 @@ void default_send_IPI_mask_allbutself_ph */ void default_send_IPI_single(int cpu, int vector) { - apic->send_IPI_mask(cpumask_of(cpu), vector); + __apic_send_IPI_mask(cpumask_of(cpu), vector); } =20 void default_send_IPI_allbutself(int vector) --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -876,7 +876,7 @@ static int apic_retrigger_irq(struct irq unsigned long flags; =20 raw_spin_lock_irqsave(&vector_lock, flags); - apic->send_IPI(apicd->cpu, apicd->vector); + __apic_send_IPI(apicd->cpu, apicd->vector); raw_spin_unlock_irqrestore(&vector_lock, flags); =20 return 1; @@ -958,7 +958,7 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_irq_move_c */ irr =3D apic_read(APIC_IRR + (vector / 32 * 0x10)); if (irr & (1U << (vector % 32))) { - apic->send_IPI_self(IRQ_MOVE_CLEANUP_VECTOR); + __apic_send_IPI_self(IRQ_MOVE_CLEANUP_VECTOR); continue; } free_moved_vector(apicd); @@ -976,7 +976,7 @@ static void __send_cleanup_vector(struct cpu =3D apicd->prev_cpu; if (cpu_online(cpu)) { hlist_add_head(&apicd->clist, per_cpu_ptr(&cleanup_list, cpu)); - apic->send_IPI(cpu, IRQ_MOVE_CLEANUP_VECTOR); + __apic_send_IPI(cpu, IRQ_MOVE_CLEANUP_VECTOR); } else { apicd->prev_vector =3D 0; } --- a/arch/x86/kernel/cpu/mce/inject.c +++ b/arch/x86/kernel/cpu/mce/inject.c @@ -270,8 +270,7 @@ static void __maybe_unused raise_mce(str mce_irq_ipi, NULL, 0); preempt_enable(); } else if (m->inject_flags & MCJ_NMI_BROADCAST) - apic->send_IPI_mask(mce_inject_cpumask, - NMI_VECTOR); + __apic_send_IPI_mask(mce_inject_cpumask, NMI_VECTOR); } start =3D jiffies; while (!cpumask_empty(mce_inject_cpumask)) { --- a/arch/x86/kernel/irq_work.c +++ b/arch/x86/kernel/irq_work.c @@ -28,7 +28,7 @@ void arch_irq_work_raise(void) if (!arch_irq_work_has_interrupt()) return; =20 - apic->send_IPI_self(IRQ_WORK_VECTOR); + __apic_send_IPI_self(IRQ_WORK_VECTOR); apic_wait_icr_idle(); } #endif --- a/arch/x86/kernel/nmi_selftest.c +++ b/arch/x86/kernel/nmi_selftest.c @@ -75,7 +75,7 @@ static void __init test_nmi_ipi(struct c /* sync above data before sending NMI */ wmb(); =20 - apic->send_IPI_mask(mask, NMI_VECTOR); + __apic_send_IPI_mask(mask, NMI_VECTOR); =20 /* Don't wait longer than a second */ timeout =3D USEC_PER_SEC; --- a/arch/x86/kernel/smp.c +++ b/arch/x86/kernel/smp.c @@ -237,7 +237,7 @@ static void native_stop_other_cpus(int w pr_emerg("Shutting down cpus with NMI\n"); =20 for_each_cpu(cpu, &cpus_stop_mask) - apic->send_IPI(cpu, NMI_VECTOR); + __apic_send_IPI(cpu, NMI_VECTOR); } /* * Don't wait longer than 10 ms if the caller didn't --- a/arch/x86/kvm/vmx/posted_intr.c +++ b/arch/x86/kvm/vmx/posted_intr.c @@ -175,7 +175,7 @@ static void pi_enable_wakeup_handler(str * scheduled out). */ if (pi_test_on(&new)) - apic->send_IPI_self(POSTED_INTR_WAKEUP_VECTOR); + __apic_send_IPI_self(POSTED_INTR_WAKEUP_VECTOR); =20 local_irq_restore(flags); } --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -4147,7 +4147,7 @@ static inline void kvm_vcpu_trigger_post */ =20 if (vcpu !=3D kvm_get_running_vcpu()) - apic->send_IPI_mask(get_cpu_mask(vcpu->cpu), pi_vec); + __apic_send_IPI_mask(get_cpu_mask(vcpu->cpu), pi_vec); return; } #endif --- a/arch/x86/platform/uv/uv_nmi.c +++ b/arch/x86/platform/uv/uv_nmi.c @@ -601,7 +601,7 @@ static void uv_nmi_nr_cpus_ping(void) for_each_cpu(cpu, uv_nmi_cpu_mask) uv_cpu_nmi_per(cpu).pinging =3D 1; =20 - apic->send_IPI_mask(uv_nmi_cpu_mask, APIC_DM_NMI); + __apic_send_IPI_mask(uv_nmi_cpu_mask, APIC_DM_NMI); } =20 /* Clean up flags for CPU's that ignored both NMI and ping */