From nobody Tue Feb 10 11:23:26 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 83FF118308E; Fri, 23 Aug 2024 10:35:42 +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=1724409344; cv=none; b=PDO3dp37cP27JzfH3aMsx2KpSivBOW5KRSJjEDd0j+LwzX2c/5GxrZOf45Lj66DhwTg1gSDbhvW3sj47RMGHWa7RplYAJRWhjz0mIMryuQEH3F6f1h21da1I8vTVJDPYDGoLCsVSZBCme1vKcvQNkPG+0NoLyMI83ns+85oUMnU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724409344; c=relaxed/simple; bh=PQJfH19J2xKUDKoipY1oOreDp44yq9ODA+Dq2V9F8t8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=KSTv+Tae1Er5d5vi4uFnlaEHGd1AAhpR6VSAIQs4pId3rA6mD320YYK8JA7Me3Qm+Dh6/fFOiKewBkN0fjKBg9ojfg2AYl1UGkTx0YRiohp4dgTLeDTuGzFFk4BdNdZ9f9Qc+ee0Vq4kY2dlxVxdMMZh2kQHfKWlS5yq6Ayzm3w= 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 _____8Axjpv8ZchmklQdAA--.35603S3; Fri, 23 Aug 2024 18:35:40 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.10.34]) by front1 (Coremail) with SMTP id qMiowMBxZODuZchmADcfAA--.4757S4; Fri, 23 Aug 2024 18:35:39 +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 18:35:20 +0800 Message-Id: <20240823103525.24237-3-zhangtianyang@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20240823103525.24237-1-zhangtianyang@loongson.cn> References: <20240823103525.24237-1-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: qMiowMBxZODuZchmADcfAA--.4757S4 X-CM-SenderInfo: x2kd0wxwld05hdqjqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7Krykuw15Kr4DWrW5Gr1ktFc_yoW8XFyrpr ZrAa4kXr48Gry8AFyDKa4fur15J3ZrGw4aga1j9FZ7urnrXw1Fqw18Jr9rXFyYgayFgFWF gFn5Ww1FqF4UXwbCm3ZEXasCq-sJn29KB7ZKAUJUUUjx529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBmb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_Gr1j6F4UJwAaw2AFwI0_GFv_Wryle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2 xF0cIa020Ex4CE44I27wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_ ZF0_GryDMcIj6I8E87Iv67AKxVWxJVW8Jr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48Icx kI7VAKI48JMxkF7I0En4kS14v26r4a6rW5MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCj c4AY6r1j6r4UMxCIbckI1I0E14v26r4a6rW5MI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxV Cjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZVWrXwCIc40Y0x0EwIxGrwCI42IY 6xIIjxv20xvE14v26F1j6w1UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1lIxAIcV CF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26F4j6r4UJwCI42IY6I8E87Iv 6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUD1v3UUUUU 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 --- 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