From mboxrd@z Thu Jan 1 00:00:00 1970 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 8DA55C001DF for ; Wed, 2 Aug 2023 10:22:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232185AbjHBKWm (ORCPT ); Wed, 2 Aug 2023 06:22:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233797AbjHBKWH (ORCPT ); Wed, 2 Aug 2023 06:22:07 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9283C3590 for ; Wed, 2 Aug 2023 03:21:25 -0700 (PDT) Message-ID: <20230802101933.624048507@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1690971683; 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=35SsYPutHQfrY5WfuShg4nZEs1pqJGB3qfTztkPXMuo=; b=MV/oumQO5BoAgtxkGI6en5/fheTy/diEfI9CHqwE8vtC8AgJSLfWJcBT0tDzLGFvK9kgQO M3WG2p4c2+l+oZ7g0UeypljvYTX8Vv/8vBkAA6vFPbh4wMedGs54+9BZx7FwaG3u6ebas0 tkH0kPILO9NRZq4vI/xEHlVGDhEkAhlnHbuvyYKk4v0qxJXqBIckfQPZfSDNS9mmohyMcY qbbBxV/jGFp+b1qkH57cPWEQUl4z0AskkxkZzNcnkhCQjxngGagRmz3Ttfp4z5vAiekHhV o2x8raRxQXoDi/2r62U/eXgyB9DppE0giPM/euDnyAs09O2IC5jXwAiqmKcgrw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1690971683; 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=35SsYPutHQfrY5WfuShg4nZEs1pqJGB3qfTztkPXMuo=; b=C4ix81YMNoXabjRTYcc9VhOI4k7/i5DPNizvGtFRyCNfbHW0sxU3h7HJuw/yCbbtT4ui+x CUhDGNQTsITboEAg== From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Tom Lendacky , Andrew Cooper , Arjan van de Ven , Huang Rui , Juergen Gross , Dimitri Sivanich , Michael Kelley , Wei Liu Subject: [patch V3 16/40] x86/apic: Use u32 for cpu_present_to_apicid() References: <20230802101635.459108805@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Wed, 2 Aug 2023 12:21:23 +0200 (CEST) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org APIC IDs are used with random data types u16, u32, int, unsigned int, unsigned long. Make it all consistently use u32 because that reflects the hardware register width and fixup a few related usage sites for consistency sake. Signed-off-by: Thomas Gleixner Reviewed-by: Arjan van de Ven --- arch/x86/include/asm/apic.h | 4 ++-- arch/x86/kernel/apic/apic_common.c | 2 +- arch/x86/kernel/cpu/common.c | 3 ++- arch/x86/kernel/smpboot.c | 10 +++++----- arch/x86/xen/apic.c | 2 +- 5 files changed, 11 insertions(+), 10 deletions(-) --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -295,7 +295,7 @@ struct apic { bool (*check_apicid_used)(physid_mask_t *map, u32 apicid); void (*init_apic_ldr)(void); void (*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap); - int (*cpu_present_to_apicid)(int mps_cpu); + u32 (*cpu_present_to_apicid)(int mps_cpu); int (*phys_pkg_id)(int cpuid_apic, int index_msb); u32 (*get_apic_id)(unsigned long x); @@ -539,7 +539,7 @@ extern u32 apic_default_calc_apicid(unsi extern u32 apic_flat_calc_apicid(unsigned int cpu); extern void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap); -extern int default_cpu_present_to_apicid(int mps_cpu); +extern u32 default_cpu_present_to_apicid(int mps_cpu); #else /* CONFIG_X86_LOCAL_APIC */ --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -28,7 +28,7 @@ void default_ioapic_phys_id_map(physid_m *retmap = *phys_map; } -int default_cpu_present_to_apicid(int mps_cpu) +u32 default_cpu_present_to_apicid(int mps_cpu) { if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu)) return (int)per_cpu(x86_cpu_to_apicid, mps_cpu); --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1747,7 +1747,8 @@ static void generic_identify(struct cpui static void validate_apic_and_package_id(struct cpuinfo_x86 *c) { #ifdef CONFIG_SMP - unsigned int apicid, cpu = smp_processor_id(); + unsigned int cpu = smp_processor_id(); + u32 apicid; apicid = apic->cpu_present_to_apicid(cpu); --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -816,7 +816,7 @@ static void __init smp_quirk_init_udelay /* * Wake up AP by INIT, INIT, STARTUP sequence. */ -static void send_init_sequence(int phys_apicid) +static void send_init_sequence(u32 phys_apicid) { int maxlvt = lapic_get_maxlvt(); @@ -842,7 +842,7 @@ static void send_init_sequence(int phys_ /* * Wake up AP by INIT, INIT, STARTUP sequence. */ -static int wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip) +static int wakeup_secondary_cpu_via_init(u32 phys_apicid, unsigned long start_eip) { unsigned long send_status = 0, accept_status = 0; int num_starts, j, maxlvt; @@ -989,7 +989,7 @@ int common_cpu_up(unsigned int cpu, stru * Returns zero if startup was successfully sent, else error code from * ->wakeup_secondary_cpu. */ -static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle) +static int do_boot_cpu(u32 apicid, int cpu, struct task_struct *idle) { unsigned long start_ip = real_mode_header->trampoline_start; int ret; @@ -1057,7 +1057,7 @@ static int do_boot_cpu(int apicid, int c int native_kick_ap(unsigned int cpu, struct task_struct *tidle) { - int apicid = apic->cpu_present_to_apicid(cpu); + u32 apicid = apic->cpu_present_to_apicid(cpu); int err; lockdep_assert_irqs_enabled(); @@ -1250,7 +1250,7 @@ void arch_thaw_secondary_cpus_end(void) bool smp_park_other_cpus_in_init(void) { unsigned int cpu, this_cpu = smp_processor_id(); - unsigned int apicid; + u32 apicid; if (apic->wakeup_secondary_cpu_64 || apic->wakeup_secondary_cpu) return false; --- a/arch/x86/xen/apic.c +++ b/arch/x86/xen/apic.c @@ -115,7 +115,7 @@ static int xen_phys_pkg_id(int initial_a return initial_apic_id >> index_msb; } -static int xen_cpu_present_to_apicid(int cpu) +static u32 xen_cpu_present_to_apicid(int cpu) { if (cpu_present(cpu)) return cpu_data(cpu).topo.apicid;