From nobody Wed Feb 11 02:09:08 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 90E2C146A8A; Fri, 23 Aug 2024 10:33:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724409228; cv=none; b=Zt1m5rhAMFw5MwfPG2oraIF6TKgNkqSHalRAwKW1sE1e7LVLaw6b4P+bjawKIkBxnIc3ejHD3FEFgbSNqHRMY4RyS/h5RWqZoJgm0Y5sUOZ0Q4n8IrQ2TxM9zheiO1hYSeLI0eSx95P+hLDfw5tAPGYYL8nW5dOGeEFr4mi8Z5o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724409228; c=relaxed/simple; bh=PQJfH19J2xKUDKoipY1oOreDp44yq9ODA+Dq2V9F8t8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=u0eYZxtxGa5o5GGJloT9zL2iRSNVeAjLRzfqZkebC9MQWftZEqkKES1pa9Pp1Db1ljMmYzfETKyHQxRxLY+JVZYbiP1syMeGz0DG1eW5QuaQpK6tR8UUZhSYGfyYMF97P9nvM2D5oTr3hq8a7YayztIkICwn3sRG3AZS2fvCry8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.2.10.34]) by gateway (Coremail) with SMTP id _____8Cx+emIZchmulMdAA--.61802S3; Fri, 23 Aug 2024 18:33:44 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.10.34]) by front1 (Coremail) with SMTP id qMiowMAxVOCDZchmmDYfAA--.5401S4; Fri, 23 Aug 2024 18:33:43 +0800 (CST) From: Tianyang Zhang To: corbet@lwn.net, alexs@kernel.org, chenhuacai@kernel.org, kernel@xen0n.name, tglx@linutronix.de, jiaxun.yang@flygoat.com, gaoliang@loongson.cn, wangliupu@loongson.cn, lvjianmin@loongson.cn, zhangtianyang@loongson.cn, yijun@loongson.cn, mhocko@suse.com, akpm@linux-foundation.org, dianders@chromium.org, maobibo@loongson.cn, xry111@xry111.site, zhaotianrui@loongson.cn, nathan@kernel.org, yangtiezhu@loongson.cn, zhoubinbin@loongson.cn Cc: loongarch@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen Subject: [PATCH v11 2/7] LoongArch: Define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE Date: Fri, 23 Aug 2024 18:33:31 +0800 Message-Id: <20240823103337.23602-3-zhangtianyang@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20240823103337.23602-1-zhangtianyang@loongson.cn> References: <20240823103337.23602-1-zhangtianyang@loongson.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMAxVOCDZchmmDYfAA--.5401S4 X-CM-SenderInfo: x2kd0wxwld05hdqjqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7Krykuw15Kr4DWrW5Gr1ktFc_yoW8XFyrpr ZrAa4kXr48Gry8AFyDKa4fur15J3ZrGw4aga1j9FZ7urnrXw1Fqw18Jr9rXFyYgayFgFWF gFn5Ww1FqF4UXwbCm3ZEXasCq-sJn29KB7ZKAUJUUUUD529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBIb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07 AIYIkI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWU tVWrXwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7V AKI48JMxkF7I0En4kS14v26r1q6r43MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY 6r1j6r4UMxCIbckI1I0E14v26r126r1DMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7 xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZVWrXwCIc40Y0x0EwIxGrwCI42IY6xII jxv20xvE14v26ryj6F1UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw2 0EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z280aVCY1x02 67AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU8XTm3UUUUU== Content-Type: text/plain; charset="utf-8" From: Huacai Chen Currently we call irq_set_noprobe() in a loop for all IRQs, but indeed it only works for IRQs below NR_IRQS_LEGACY because at init_IRQ() only legacy interrupts have been allocated. Instead, we can define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE in asm/hwirq.h and the core will automatically set the flag for all interrupts. Signed-off-by: Huacai Chen Signed-off-by: Tianyang Zhang Reviewed-by: Thomas Gleixner --- arch/loongarch/include/asm/hw_irq.h | 2 ++ arch/loongarch/kernel/irq.c | 3 --- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/loongarch/include/asm/hw_irq.h b/arch/loongarch/include/a= sm/hw_irq.h index af4f4e8fbd85..8156ffb67415 100644 --- a/arch/loongarch/include/asm/hw_irq.h +++ b/arch/loongarch/include/asm/hw_irq.h @@ -9,6 +9,8 @@ =20 extern atomic_t irq_err_count; =20 +#define ARCH_IRQ_INIT_FLAGS IRQ_NOPROBE + /* * interrupt-retrigger: NOP for now. This may not be appropriate for all * machines, we'll see ... diff --git a/arch/loongarch/kernel/irq.c b/arch/loongarch/kernel/irq.c index f4991c03514f..adac8fcbb2ac 100644 --- a/arch/loongarch/kernel/irq.c +++ b/arch/loongarch/kernel/irq.c @@ -102,9 +102,6 @@ void __init init_IRQ(void) mp_ops.init_ipi(); #endif =20 - for (i =3D 0; i < NR_IRQS; i++) - irq_set_noprobe(i); - for_each_possible_cpu(i) { page =3D alloc_pages_node(cpu_to_node(i), GFP_KERNEL, order); =20 --=20 2.20.1