From nobody Sun Feb 8 17:41:33 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F0B6C31327B; Mon, 27 Oct 2025 16:30:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761582659; cv=none; b=Cwh+PI9di5mj0cpnNoqdnOKv0oHmH8A67+sDihnlkQTcMLkfhBTlD+2OIE+naBW0yoOmTq59OQGm1P1Z+kE4UYdiSns82fNW6eKGEi85whj/+YIuN9jiBIg/C7x+kIa2ZZBuosJinCQAExv5BYRdNhXSN5poZxnsvPD1gOZt8Ec= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761582659; c=relaxed/simple; bh=WrjJI7+ERdTDGsW78kzXYPB55t0V9oW40vEmP7zsqaA=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=PpHmgcqEQ0INIJTr0dGee/9Mf3C6kmZvfzd3s6yiwwrjmVW8pNmie5o37nZMZfRLiSrEHZY4S/cabRsSqKyp7AiyFRS+De6nk/IfPzmVYI+p0dvYmUEvpvJAY8eewMLzI3ykz5lgvaXXBG5re4JA6DAn81Oqqw/y9IrSu3rXHZA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=mDOUTE25; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=ZV7WrM+S; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="mDOUTE25"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ZV7WrM+S" Date: Mon, 27 Oct 2025 16:30:55 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1761582656; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9mMeoKodPFmrdWnf/uX7RD4Ztc4wrRmubUia7AZuzL4=; b=mDOUTE25BHaIQo1wmOJJKNVmUW9b8lNlMyfYz2vVXipwQE09zzAq9ERFVoA/DnRdwfU18x Kw+wUSrMPYFL8F62QIqFtiw3fXK4km5YKKKz7NnUEmSWnAWmRPQTQUMN/Ma1W2Rf64zJnd 6L3AygvenYgqMYrI7UKU8XWAEfibyPKOsUCE7zodpOKDxIq4R4Wryb1+g+LBdGviarOulD /0x++6TG3Z8QmniLDck3vOwXSLIK0T101VvGK7lGTGxSRmTOsRG29EBTHyLuRm+Fnps1aD e3o03/11dnkKJjAll7x3UFbDHVNEWFsjhlnj9xuhp21ZHJg/05YWlnWA6JbQog== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1761582656; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9mMeoKodPFmrdWnf/uX7RD4Ztc4wrRmubUia7AZuzL4=; b=ZV7WrM+Sd1ZOPu0An1oRJ2WM9uizV+yyw8V4XrMl2O5e+H/BBeoedU7VuJ+iKcSI/ywAF/ I6Tx9bbdiee3CdBA== From: "tip-bot2 for Marc Zyngier" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: irq/core] irqchip: Kill irq-partition-percpu Cc: Marc Zyngier , Thomas Gleixner , Will Deacon , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20251020122944.3074811-24-maz@kernel.org> References: <20251020122944.3074811-24-maz@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <176158265502.2601451.6654676472313258236.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the irq/core branch of tip: Commit-ID: c620438ef2ac80b09269a9ae3c0b4fe5add19bfe Gitweb: https://git.kernel.org/tip/c620438ef2ac80b09269a9ae3c0b4fe5a= dd19bfe Author: Marc Zyngier AuthorDate: Mon, 20 Oct 2025 13:29:40 +01:00 Committer: Thomas Gleixner CommitterDate: Mon, 27 Oct 2025 17:16:36 +01:00 irqchip: Kill irq-partition-percpu This code is now completely unused, and nobody will ever miss it. Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Tested-by: Will Deacon Link: https://patch.msgid.link/20251020122944.3074811-24-maz@kernel.org --- drivers/irqchip/Kconfig | 3 +- drivers/irqchip/Makefile | 1 +- drivers/irqchip/irq-partition-percpu.c | 241 +------------------ include/linux/irqchip/irq-partition-percpu.h | 53 +---- 4 files changed, 298 deletions(-) delete mode 100644 drivers/irqchip/irq-partition-percpu.c delete mode 100644 include/linux/irqchip/irq-partition-percpu.h diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 648b361..5dddb4c 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -450,9 +450,6 @@ config LS_SCFG_MSI depends on PCI_MSI select IRQ_MSI_LIB =20 -config PARTITION_PERCPU - bool - config STM32MP_EXTI tristate "STM32MP extended interrupts and event controller" depends on (ARCH_STM32 && !ARM_SINGLE_ARMV7M) || COMPILE_TEST diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 3de083f..6a22944 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -36,7 +36,6 @@ obj-$(CONFIG_ARM_GIC_V3) +=3D irq-gic-v3.o irq-gic-v3-mb= i.o irq-gic-common.o obj-$(CONFIG_ARM_GIC_ITS_PARENT) +=3D irq-gic-its-msi-parent.o obj-$(CONFIG_ARM_GIC_V3_ITS) +=3D irq-gic-v3-its.o irq-gic-v4.o obj-$(CONFIG_ARM_GIC_V3_ITS_FSL_MC) +=3D irq-gic-v3-its-fsl-mc-msi.o -obj-$(CONFIG_PARTITION_PERCPU) +=3D irq-partition-percpu.o obj-$(CONFIG_ARM_GIC_V5) +=3D irq-gic-v5.o irq-gic-v5-irs.o irq-gic-v5-it= s.o \ irq-gic-v5-iwb.o obj-$(CONFIG_HISILICON_IRQ_MBIGEN) +=3D irq-mbigen.o diff --git a/drivers/irqchip/irq-partition-percpu.c b/drivers/irqchip/irq-p= artition-percpu.c deleted file mode 100644 index 4441ffe..0000000 --- a/drivers/irqchip/irq-partition-percpu.c +++ /dev/null @@ -1,241 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2016 ARM Limited, All Rights Reserved. - * Author: Marc Zyngier - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -struct partition_desc { - int nr_parts; - struct partition_affinity *parts; - struct irq_domain *domain; - struct irq_desc *chained_desc; - unsigned long *bitmap; - struct irq_domain_ops ops; -}; - -static bool partition_check_cpu(struct partition_desc *part, - unsigned int cpu, unsigned int hwirq) -{ - return cpumask_test_cpu(cpu, &part->parts[hwirq].mask); -} - -static void partition_irq_mask(struct irq_data *d) -{ - struct partition_desc *part =3D irq_data_get_irq_chip_data(d); - struct irq_chip *chip =3D irq_desc_get_chip(part->chained_desc); - struct irq_data *data =3D irq_desc_get_irq_data(part->chained_desc); - - if (partition_check_cpu(part, smp_processor_id(), d->hwirq) && - chip->irq_mask) - chip->irq_mask(data); -} - -static void partition_irq_unmask(struct irq_data *d) -{ - struct partition_desc *part =3D irq_data_get_irq_chip_data(d); - struct irq_chip *chip =3D irq_desc_get_chip(part->chained_desc); - struct irq_data *data =3D irq_desc_get_irq_data(part->chained_desc); - - if (partition_check_cpu(part, smp_processor_id(), d->hwirq) && - chip->irq_unmask) - chip->irq_unmask(data); -} - -static int partition_irq_set_irqchip_state(struct irq_data *d, - enum irqchip_irq_state which, - bool val) -{ - struct partition_desc *part =3D irq_data_get_irq_chip_data(d); - struct irq_chip *chip =3D irq_desc_get_chip(part->chained_desc); - struct irq_data *data =3D irq_desc_get_irq_data(part->chained_desc); - - if (partition_check_cpu(part, smp_processor_id(), d->hwirq) && - chip->irq_set_irqchip_state) - return chip->irq_set_irqchip_state(data, which, val); - - return -EINVAL; -} - -static int partition_irq_get_irqchip_state(struct irq_data *d, - enum irqchip_irq_state which, - bool *val) -{ - struct partition_desc *part =3D irq_data_get_irq_chip_data(d); - struct irq_chip *chip =3D irq_desc_get_chip(part->chained_desc); - struct irq_data *data =3D irq_desc_get_irq_data(part->chained_desc); - - if (partition_check_cpu(part, smp_processor_id(), d->hwirq) && - chip->irq_get_irqchip_state) - return chip->irq_get_irqchip_state(data, which, val); - - return -EINVAL; -} - -static int partition_irq_set_type(struct irq_data *d, unsigned int type) -{ - struct partition_desc *part =3D irq_data_get_irq_chip_data(d); - struct irq_chip *chip =3D irq_desc_get_chip(part->chained_desc); - struct irq_data *data =3D irq_desc_get_irq_data(part->chained_desc); - - if (chip->irq_set_type) - return chip->irq_set_type(data, type); - - return -EINVAL; -} - -static void partition_irq_print_chip(struct irq_data *d, struct seq_file *= p) -{ - struct partition_desc *part =3D irq_data_get_irq_chip_data(d); - struct irq_chip *chip =3D irq_desc_get_chip(part->chained_desc); - struct irq_data *data =3D irq_desc_get_irq_data(part->chained_desc); - - seq_printf(p, "%5s-%lu", chip->name, data->hwirq); -} - -static struct irq_chip partition_irq_chip =3D { - .irq_mask =3D partition_irq_mask, - .irq_unmask =3D partition_irq_unmask, - .irq_set_type =3D partition_irq_set_type, - .irq_get_irqchip_state =3D partition_irq_get_irqchip_state, - .irq_set_irqchip_state =3D partition_irq_set_irqchip_state, - .irq_print_chip =3D partition_irq_print_chip, -}; - -static void partition_handle_irq(struct irq_desc *desc) -{ - struct partition_desc *part =3D irq_desc_get_handler_data(desc); - struct irq_chip *chip =3D irq_desc_get_chip(desc); - int cpu =3D smp_processor_id(); - int hwirq; - - chained_irq_enter(chip, desc); - - for_each_set_bit(hwirq, part->bitmap, part->nr_parts) { - if (partition_check_cpu(part, cpu, hwirq)) - break; - } - - if (unlikely(hwirq =3D=3D part->nr_parts)) - handle_bad_irq(desc); - else - generic_handle_domain_irq(part->domain, hwirq); - - chained_irq_exit(chip, desc); -} - -static int partition_domain_alloc(struct irq_domain *domain, unsigned int = virq, - unsigned int nr_irqs, void *arg) -{ - int ret; - irq_hw_number_t hwirq; - unsigned int type; - struct irq_fwspec *fwspec =3D arg; - struct partition_desc *part; - - BUG_ON(nr_irqs !=3D 1); - ret =3D domain->ops->translate(domain, fwspec, &hwirq, &type); - if (ret) - return ret; - - part =3D domain->host_data; - - set_bit(hwirq, part->bitmap); - irq_set_chained_handler_and_data(irq_desc_get_irq(part->chained_desc), - partition_handle_irq, part); - irq_set_percpu_devid_partition(virq, &part->parts[hwirq].mask); - irq_domain_set_info(domain, virq, hwirq, &partition_irq_chip, part, - handle_percpu_devid_irq, NULL, NULL); - irq_set_status_flags(virq, IRQ_NOAUTOEN); - - return 0; -} - -static void partition_domain_free(struct irq_domain *domain, unsigned int = virq, - unsigned int nr_irqs) -{ - struct irq_data *d; - - BUG_ON(nr_irqs !=3D 1); - - d =3D irq_domain_get_irq_data(domain, virq); - irq_set_handler(virq, NULL); - irq_domain_reset_irq_data(d); -} - -int partition_translate_id(struct partition_desc *desc, void *partition_id) -{ - struct partition_affinity *part =3D NULL; - int i; - - for (i =3D 0; i < desc->nr_parts; i++) { - if (desc->parts[i].partition_id =3D=3D partition_id) { - part =3D &desc->parts[i]; - break; - } - } - - if (WARN_ON(!part)) { - pr_err("Failed to find partition\n"); - return -EINVAL; - } - - return i; -} - -struct partition_desc *partition_create_desc(struct fwnode_handle *fwnode, - struct partition_affinity *parts, - int nr_parts, - int chained_irq, - const struct irq_domain_ops *ops) -{ - struct partition_desc *desc; - struct irq_domain *d; - - BUG_ON(!ops->select || !ops->translate); - - desc =3D kzalloc(sizeof(*desc), GFP_KERNEL); - if (!desc) - return NULL; - - desc->ops =3D *ops; - desc->ops.free =3D partition_domain_free; - desc->ops.alloc =3D partition_domain_alloc; - - d =3D irq_domain_create_linear(fwnode, nr_parts, &desc->ops, desc); - if (!d) - goto out; - desc->domain =3D d; - - desc->bitmap =3D bitmap_zalloc(nr_parts, GFP_KERNEL); - if (WARN_ON(!desc->bitmap)) - goto out; - - desc->chained_desc =3D irq_to_desc(chained_irq); - desc->nr_parts =3D nr_parts; - desc->parts =3D parts; - - return desc; -out: - if (d) - irq_domain_remove(d); - kfree(desc); - - return NULL; -} - -struct irq_domain *partition_get_domain(struct partition_desc *dsc) -{ - if (dsc) - return dsc->domain; - - return NULL; -} diff --git a/include/linux/irqchip/irq-partition-percpu.h b/include/linux/i= rqchip/irq-partition-percpu.h deleted file mode 100644 index b35ee22..0000000 --- a/include/linux/irqchip/irq-partition-percpu.h +++ /dev/null @@ -1,53 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2016 ARM Limited, All Rights Reserved. - * Author: Marc Zyngier - */ - -#ifndef __LINUX_IRQCHIP_IRQ_PARTITION_PERCPU_H -#define __LINUX_IRQCHIP_IRQ_PARTITION_PERCPU_H - -#include -#include -#include - -struct partition_affinity { - cpumask_t mask; - void *partition_id; -}; - -struct partition_desc; - -#ifdef CONFIG_PARTITION_PERCPU -int partition_translate_id(struct partition_desc *desc, void *partition_id= ); -struct partition_desc *partition_create_desc(struct fwnode_handle *fwnode, - struct partition_affinity *parts, - int nr_parts, - int chained_irq, - const struct irq_domain_ops *ops); -struct irq_domain *partition_get_domain(struct partition_desc *dsc); -#else -static inline int partition_translate_id(struct partition_desc *desc, - void *partition_id) -{ - return -EINVAL; -} - -static inline -struct partition_desc *partition_create_desc(struct fwnode_handle *fwnode, - struct partition_affinity *parts, - int nr_parts, - int chained_irq, - const struct irq_domain_ops *ops) -{ - return NULL; -} - -static inline -struct irq_domain *partition_get_domain(struct partition_desc *dsc) -{ - return NULL; -} -#endif - -#endif /* __LINUX_IRQCHIP_IRQ_PARTITION_PERCPU_H */