From nobody Mon Nov 25 20:44:29 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail(p=quarantine dis=quarantine) header.from=huawei.com Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1729850960955750.9802204512246; Fri, 25 Oct 2024 03:09:20 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.825845.1240220 (Exim 4.92) (envelope-from ) id 1t4HFW-0002gX-2h; Fri, 25 Oct 2024 10:08:54 +0000 Received: by outflank-mailman (output) from mailman id 825845.1240220; Fri, 25 Oct 2024 10:08:54 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1t4HFV-0002gI-VZ; Fri, 25 Oct 2024 10:08:53 +0000 Received: by outflank-mailman (input) for mailman id 825845; Fri, 25 Oct 2024 10:08:52 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1t4HFU-0000tn-Hi for xen-devel@lists.xenproject.org; Fri, 25 Oct 2024 10:08:52 +0000 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 199213b7-92b9-11ef-99a3-01e77a169b0f; Fri, 25 Oct 2024 12:08:49 +0200 (CEST) Received: from mail.maildlp.com (unknown [172.19.163.252]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4XZdjL03xBz10My6; Fri, 25 Oct 2024 18:06:30 +0800 (CST) Received: from kwepemg200008.china.huawei.com (unknown [7.202.181.35]) by mail.maildlp.com (Postfix) with ESMTPS id 7AEEB1800A5; Fri, 25 Oct 2024 18:08:34 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemg200008.china.huawei.com (7.202.181.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 25 Oct 2024 18:08:32 +0800 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 199213b7-92b9-11ef-99a3-01e77a169b0f From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH -next v4 01/19] arm64: ptrace: Replace interrupts_enabled() with regs_irqs_disabled() Date: Fri, 25 Oct 2024 18:06:42 +0800 Message-ID: <20241025100700.3714552-2-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241025100700.3714552-1-ruanjinjie@huawei.com> References: <20241025100700.3714552-1-ruanjinjie@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemg200008.china.huawei.com (7.202.181.35) X-ZM-MESSAGEID: 1729850962854116600 Content-Type: text/plain; charset="utf-8" Implement regs_irqs_disabled(), and replace interrupts_enabled() macro with regs_irqs_disabled() all over the place. No functional changes. Suggested-by: Mark Rutland Signed-off-by: Jinjie Ruan --- arch/arm/include/asm/ptrace.h | 4 ++-- arch/arm/kernel/hw_breakpoint.c | 2 +- arch/arm/kernel/process.c | 2 +- arch/arm/mm/alignment.c | 2 +- arch/arm/mm/fault.c | 2 +- arch/arm64/include/asm/daifflags.h | 2 +- arch/arm64/include/asm/ptrace.h | 4 ++-- arch/arm64/include/asm/xen/events.h | 2 +- arch/arm64/kernel/acpi.c | 2 +- arch/arm64/kernel/debug-monitors.c | 2 +- arch/arm64/kernel/entry-common.c | 4 ++-- arch/arm64/kernel/sdei.c | 2 +- drivers/irqchip/irq-gic-v3.c | 2 +- 13 files changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 6eb311fb2da0..2054b17b3a69 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -46,8 +46,8 @@ struct svc_pt_regs { #define processor_mode(regs) \ ((regs)->ARM_cpsr & MODE_MASK) =20 -#define interrupts_enabled(regs) \ - (!((regs)->ARM_cpsr & PSR_I_BIT)) +#define regs_irqs_disabled(regs) \ + ((regs)->ARM_cpsr & PSR_I_BIT) =20 #define fast_interrupts_enabled(regs) \ (!((regs)->ARM_cpsr & PSR_F_BIT)) diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoin= t.c index a12efd0f43e8..bc7c9f5a2767 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -947,7 +947,7 @@ static int hw_breakpoint_pending(unsigned long addr, un= signed int fsr, =20 preempt_disable(); =20 - if (interrupts_enabled(regs)) + if (!regs_irqs_disabled(regs)) local_irq_enable(); =20 /* We only handle watchpoints and hardware breakpoints. */ diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index e16ed102960c..5979a5cec2d0 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -167,7 +167,7 @@ void __show_regs(struct pt_regs *regs) segment =3D "user"; =20 printk("Flags: %s IRQs o%s FIQs o%s Mode %s ISA %s Segment %s\n", - buf, interrupts_enabled(regs) ? "n" : "ff", + buf, !regs_irqs_disabled(regs) ? "n" : "ff", fast_interrupts_enabled(regs) ? "n" : "ff", processor_modes[processor_mode(regs)], isa_modes[isa_mode(regs)], segment); diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index 3c6ddb1afdc4..642aae48a09e 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -809,7 +809,7 @@ do_alignment(unsigned long addr, unsigned int fsr, stru= ct pt_regs *regs) int thumb2_32b =3D 0; int fault; =20 - if (interrupts_enabled(regs)) + if (!regs_irqs_disabled(regs)) local_irq_enable(); =20 instrptr =3D instruction_pointer(regs); diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index ab01b51de559..dd8e95fcce10 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -275,7 +275,7 @@ do_page_fault(unsigned long addr, unsigned int fsr, str= uct pt_regs *regs) =20 =20 /* Enable interrupts if they were enabled in the parent context. */ - if (interrupts_enabled(regs)) + if (!regs_irqs_disabled(regs)) local_irq_enable(); =20 /* diff --git a/arch/arm64/include/asm/daifflags.h b/arch/arm64/include/asm/da= ifflags.h index fbb5c99eb2f9..5fca48009043 100644 --- a/arch/arm64/include/asm/daifflags.h +++ b/arch/arm64/include/asm/daifflags.h @@ -128,7 +128,7 @@ static inline void local_daif_inherit(struct pt_regs *r= egs) { unsigned long flags =3D regs->pstate & DAIF_MASK; =20 - if (interrupts_enabled(regs)) + if (!regs_irqs_disabled(regs)) trace_hardirqs_on(); =20 if (system_uses_irq_prio_masking()) diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrac= e.h index 47ff8654c5ec..3e5372a98da4 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -214,8 +214,8 @@ static inline void forget_syscall(struct pt_regs *regs) (regs)->pmr =3D=3D GIC_PRIO_IRQON : \ true) =20 -#define interrupts_enabled(regs) \ - (!((regs)->pstate & PSR_I_BIT) && irqs_priority_unmasked(regs)) +#define regs_irqs_disabled(regs) \ + (((regs)->pstate & PSR_I_BIT) || (!irqs_priority_unmasked(regs))) =20 #define fast_interrupts_enabled(regs) \ (!((regs)->pstate & PSR_F_BIT)) diff --git a/arch/arm64/include/asm/xen/events.h b/arch/arm64/include/asm/x= en/events.h index 2788e95d0ff0..2977b5fe068d 100644 --- a/arch/arm64/include/asm/xen/events.h +++ b/arch/arm64/include/asm/xen/events.h @@ -14,7 +14,7 @@ enum ipi_vector { =20 static inline int xen_irqs_disabled(struct pt_regs *regs) { - return !interrupts_enabled(regs); + return regs_irqs_disabled(regs); } =20 #define xchg_xen_ulong(ptr, val) xchg((ptr), (val)) diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index e6f66491fbe9..732f89daae23 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -403,7 +403,7 @@ int apei_claim_sea(struct pt_regs *regs) return_to_irqs_enabled =3D !irqs_disabled_flags(arch_local_save_flags()); =20 if (regs) - return_to_irqs_enabled =3D interrupts_enabled(regs); + return_to_irqs_enabled =3D !regs_irqs_disabled(regs); =20 /* * SEA can interrupt SError, mask it and describe this as an NMI so diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-m= onitors.c index c60a4a90c6a5..5497df05dd1a 100644 --- a/arch/arm64/kernel/debug-monitors.c +++ b/arch/arm64/kernel/debug-monitors.c @@ -231,7 +231,7 @@ static void send_user_sigtrap(int si_code) if (WARN_ON(!user_mode(regs))) return; =20 - if (interrupts_enabled(regs)) + if (!regs_irqs_disabled(regs)) local_irq_enable(); =20 arm64_force_sig_fault(SIGTRAP, si_code, instruction_pointer(regs), diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-com= mon.c index b260ddc4d3e9..c547e70428d3 100644 --- a/arch/arm64/kernel/entry-common.c +++ b/arch/arm64/kernel/entry-common.c @@ -73,7 +73,7 @@ static __always_inline void __exit_to_kernel_mode(struct = pt_regs *regs) { lockdep_assert_irqs_disabled(); =20 - if (interrupts_enabled(regs)) { + if (!regs_irqs_disabled(regs)) { if (regs->exit_rcu) { trace_hardirqs_on_prepare(); lockdep_hardirqs_on_prepare(); @@ -569,7 +569,7 @@ static void noinstr el1_interrupt(struct pt_regs *regs, { write_sysreg(DAIF_PROCCTX_NOIRQ, daif); =20 - if (IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI) && !interrupts_enabled(regs)) + if (IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI) && regs_irqs_disabled(regs)) __el1_pnmi(regs, handler); else __el1_irq(regs, handler); diff --git a/arch/arm64/kernel/sdei.c b/arch/arm64/kernel/sdei.c index 255d12f881c2..27a17da635d8 100644 --- a/arch/arm64/kernel/sdei.c +++ b/arch/arm64/kernel/sdei.c @@ -247,7 +247,7 @@ unsigned long __kprobes do_sdei_event(struct pt_regs *r= egs, * If we interrupted the kernel with interrupts masked, we always go * back to wherever we came from. */ - if (mode =3D=3D kernel_mode && !interrupts_enabled(regs)) + if (mode =3D=3D kernel_mode && regs_irqs_disabled(regs)) return SDEI_EV_HANDLED; =20 /* diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index ce87205e3e82..5c832c436bd8 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -932,7 +932,7 @@ static void __gic_handle_irq_from_irqsoff(struct pt_reg= s *regs) =20 static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) { - if (unlikely(gic_supports_nmi() && !interrupts_enabled(regs))) + if (unlikely(gic_supports_nmi() && regs_irqs_disabled(regs))) __gic_handle_irq_from_irqsoff(regs); else __gic_handle_irq_from_irqson(regs); --=20 2.34.1