From nobody Wed Oct 8 03:43:41 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2966A2E54BF; Thu, 3 Jul 2025 10:27:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751538458; cv=none; b=G+UbbO3cEySl+0YNBjEiiA70RydSfBfdzqk5B2MeoqJYME2xODwmETQ4XDmo+YR97h3IelqR8LFp8YzhkXrCWlk8wfqjimuU868bLv1ePKsaValS+ZQJ2zVw6p8dNzGYUd3IjpOU0/wf0p9M5eUiAHHW8qhpki/mg9UvZmQtxIE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751538458; c=relaxed/simple; bh=tkMcRUIDNj0nEgyr++8PL3P4fcZsx1AILTo8bVztxoU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dFnh0PI283B1CvzRe4Bp/D9I8giVxAkzp5fNx8YnlbWbO9r870Dnr5aI0fIxZCweNR+UM9AKF80aTSt2rlsnV6kgtXSm0XAauY5DhFSCYzh9bZwPsbemH6u0RcEOgTkNoUCFS4RM8i8OXt05xtPRmVyYAlW6YIn1VIjyxS2gQ88= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FJY58TqS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FJY58TqS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38C40C4CEEB; Thu, 3 Jul 2025 10:27:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751538458; bh=tkMcRUIDNj0nEgyr++8PL3P4fcZsx1AILTo8bVztxoU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=FJY58TqSjZ5RRmmELp8KPS8NJo5Eqo77tru+p+AiS+hrM0+iKUvlK+MB4VE5pGBfJ ORBd5DEVacHRzeHpGKiQlrNSvVbFpuReNJIV34jYwUmKR6ezzMs300HhRGNDXGoORK SJhi1a/tNGIBf02hSyE/4AebSCcmr5wqA3xxq3DGFpcJ0b/hNJHtIjkOVf5Cks/IuF 4zn6Rn9CjmwKgHjqKrNyj+ITl3FwyBx0EP8/OkOhvze5OS2LgScuYkIJupyNELjRXl T4mOekeBCtqcYYTD2X4/mniulBVbAoaiwQHLSwXEHt2bB2h+vbYBOWw13XUz8KjMv1 4MgkwH/z01EzA== From: Lorenzo Pieralisi Date: Thu, 03 Jul 2025 12:25:16 +0200 Subject: [PATCH v7 26/31] irqchip/gic-v3: Rename GICv3 ITS MSI parent Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250703-gicv5-host-v7-26-12e71f1b3528@kernel.org> References: <20250703-gicv5-host-v7-0-12e71f1b3528@kernel.org> In-Reply-To: <20250703-gicv5-host-v7-0-12e71f1b3528@kernel.org> To: Marc Zyngier , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon Cc: Arnd Bergmann , Sascha Bischoff , Jonathan Cameron , Timothy Hayes , Bjorn Helgaas , "Liam R. Howlett" , Peter Maydell , Mark Rutland , Jiri Slaby , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, Lorenzo Pieralisi X-Mailer: b4 0.15-dev-6f78e The GICv5 ITS will reuse some GICv3 ITS MSI parent functions therefore it makes sense to keep the code functionality in a compilation unit shared by the two drivers. Rename the GICv3 ITS MSI parent file and update the related Kconfig/Makefile entries to pave the way for code sharing. Signed-off-by: Lorenzo Pieralisi Reviewed-by: Marc Zyngier Cc: Thomas Gleixner Cc: Marc Zyngier --- drivers/irqchip/Kconfig | 4 ++++ drivers/irqchip/Makefile | 3 ++- drivers/irqchip/irq-gic-common.h | 2 -- .../{irq-gic-v3-its-msi-parent.c =3D> irq-gic-its-msi-parent.c} | 2 +- drivers/irqchip/irq-gic-its-msi-parent.h | 11 +++++++= ++++ drivers/irqchip/irq-gic-v3-its.c | 1 + 6 files changed, 19 insertions(+), 4 deletions(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 3e4fb08b7a4d..f9eae1a645c9 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -41,10 +41,14 @@ config ARM_GIC_V3 select HAVE_ARM_SMCCC_DISCOVERY select IRQ_MSI_IOMMU =20 +config ARM_GIC_ITS_PARENT + bool + config ARM_GIC_V3_ITS bool select GENERIC_MSI_IRQ select IRQ_MSI_LIB + select ARM_GIC_ITS_PARENT default ARM_GIC_V3 select IRQ_MSI_IOMMU =20 diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 7a0e6cee09e1..3ce6ea9a371b 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -33,7 +33,8 @@ obj-$(CONFIG_ARCH_REALVIEW) +=3D irq-gic-realview.o obj-$(CONFIG_IRQ_MSI_LIB) +=3D irq-msi-lib.o obj-$(CONFIG_ARM_GIC_V2M) +=3D irq-gic-v2m.o obj-$(CONFIG_ARM_GIC_V3) +=3D irq-gic-v3.o irq-gic-v3-mbi.o irq-gic-commo= n.o -obj-$(CONFIG_ARM_GIC_V3_ITS) +=3D irq-gic-v3-its.o irq-gic-v4.o irq-gic-v= 3-its-msi-parent.o +obj-$(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 diff --git a/drivers/irqchip/irq-gic-common.h b/drivers/irqchip/irq-gic-com= mon.h index 020ecdf16901..710cab61d919 100644 --- a/drivers/irqchip/irq-gic-common.h +++ b/drivers/irqchip/irq-gic-common.h @@ -29,8 +29,6 @@ void gic_enable_quirks(u32 iidr, const struct gic_quirk *= quirks, void gic_enable_of_quirks(const struct device_node *np, const struct gic_quirk *quirks, void *data); =20 -extern const struct msi_parent_ops gic_v3_its_msi_parent_ops; - #define RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING (1 << 0) #define RDIST_FLAGS_RD_TABLES_PREALLOCATED (1 << 1) #define RDIST_FLAGS_FORCE_NON_SHAREABLE (1 << 2) diff --git a/drivers/irqchip/irq-gic-v3-its-msi-parent.c b/drivers/irqchip/= irq-gic-its-msi-parent.c similarity index 99% rename from drivers/irqchip/irq-gic-v3-its-msi-parent.c rename to drivers/irqchip/irq-gic-its-msi-parent.c index a5e110ffdd88..8beecfed2b84 100644 --- a/drivers/irqchip/irq-gic-v3-its-msi-parent.c +++ b/drivers/irqchip/irq-gic-its-msi-parent.c @@ -7,7 +7,7 @@ #include #include =20 -#include "irq-gic-common.h" +#include "irq-gic-its-msi-parent.h" #include =20 #define ITS_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS | \ diff --git a/drivers/irqchip/irq-gic-its-msi-parent.h b/drivers/irqchip/irq= -gic-its-msi-parent.h new file mode 100644 index 000000000000..75e223e673ce --- /dev/null +++ b/drivers/irqchip/irq-gic-its-msi-parent.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2024 ARM Limited, All Rights Reserved. + */ + +#ifndef _IRQ_GIC_ITS_MSI_PARENT_H +#define _IRQ_GIC_ITS_MSI_PARENT_H + +extern const struct msi_parent_ops gic_v3_its_msi_parent_ops; + +#endif /* _IRQ_GIC_ITS_MSI_PARENT_H */ diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-= its.c index d54fa0638dc4..467cb78435a9 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -41,6 +41,7 @@ #include =20 #include "irq-gic-common.h" +#include "irq-gic-its-msi-parent.h" #include =20 #define ITS_FLAGS_CMDQ_NEEDS_FLUSHING (1ULL << 0) --=20 2.48.0