From patchwork Mon Feb 17 08:56:48 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 13977572 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C1811C021A0 for ; Mon, 17 Feb 2025 10:53:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WlZP8SZYetYktHDMy89E58QpaLzD7a5abBH6Ap8cJUQ=; b=ZqesZ78IFgjOuo w0LE8D0E2FTbARILBV5n5mWwOLnSxfFTr2G01KdlUqG+ySkVUYSs44FxJ8Muc9oG38npewFhwdmG4 t2vp3Tb6sFX5HnX1/H0/JV2+V/xRKqK2Z7PTKvlsPpr1scyMVkvsg+XBXeKdLGtXQmitRqrRK0k3p 7nv3+zEnI6T+wZIvM6igeJ403jkdj6A/eiuyoDjccairMa0bbw2RRmOxx/2j6d4dN23xqc601ycL3 iQKpNAU5iLsjevZrqzrj9+CT/thmwXmnJMG2sl0zo8zSoLjfQWHRvK6V5rGna7KJT/RcchuMPPyNG vldGY2pDLQ/zR5mmbF8w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tjykO-00000004AO3-0rLU; Mon, 17 Feb 2025 10:53:08 +0000 Received: from mail-pj1-x102c.google.com ([2607:f8b0:4864:20::102c]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tjwx3-00000003pcs-33y3 for linux-riscv@lists.infradead.org; Mon, 17 Feb 2025 08:58:06 +0000 Received: by mail-pj1-x102c.google.com with SMTP id 98e67ed59e1d1-2fbf77b2b64so7658995a91.2 for ; Mon, 17 Feb 2025 00:58:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1739782685; x=1740387485; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=dDa5uVtGTmKoF+EGxYZ14lQBrXBy+Zgm46G016g9yok=; b=UHt23aZkjkoEgHkye4Qhk4E4vWe5lpkP+DRgP6j+NKeKLtHYKzFOzidtyp4DVARm47 Il+r0nWUr4GvXAgk2p23ZKS0G1EwmKFMpLFvUgnM3O1Kd5Y9vSIVwjcfLzsFZ/xk15ee tNckXFOk2Tr46pKQ1wOhLe/jHFHdP1GzW5mpjToC7g3tD+qgKHoioa/Nk9wwJK+vi0mg P3vplKE9riMCpXrD1NA+PpVidP9AbzYjzBNk5eWK97HgDxREL7PHA557ilC5XUxdoz+m t54CP2JIKiFh8Cc2cIodg0LygbZhNygT6+PA4J1uCnQZoHspaLFrALdvG9EHZ7XJri9Q F8xw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739782685; x=1740387485; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dDa5uVtGTmKoF+EGxYZ14lQBrXBy+Zgm46G016g9yok=; b=OMv6kbajNDgvu6bGwYnUWfaabUQmtr8+ju0wSxty6NAVlHpvTsgzjwR2f2mYdyTHJv gpq4Ru/tZFDb++rlyDrZa5JBexBarsYyA3XvP9XvSU3b1eLThj/UuOJukE/kcfVXM76O RIShZizsV8K74PzMRrlTk94fN8sjPBzQ61E+bKwFS9CsBAQ48mKvzteDaQsOLV32Uhay /TOS09DtHZSg7G2/YyoRghBybtGNr9BdUvmTMrY0VQQtXDqKOpMHcRrJ6SX6ZlhWuOc9 pu5UfjN6T0ORdamv8dF+hI0alDAR/I50qix+N3CAwYxPf9MYUriGrAdF5tWK1Jg3PBYd IlCw== X-Forwarded-Encrypted: i=1; AJvYcCV6CLm2KC1HLPLWsgk6I7G5l7tFuLfjX0ZLOh5wJ4sZR3jv9I8MNAS+klQ+Ce6OSoDwfKVhEMwI7qDa6A==@lists.infradead.org X-Gm-Message-State: AOJu0Yz+HmVOuTxWwLtrcErdcvPs2eWtuaXRXCpzJGsVw/D4BbxcVovG Gs6EaoYKteq9eesaVVbXk0D9BF8y+379G4pREBz+me6KF636UuJqlxw4hkS850Y= X-Gm-Gg: ASbGncsI7GI2XZNEtpPABAC+DJ9tgEc5XbTLETmfYRC/q1Jn8jPi30xlzlBQ+awVkgk UlphT/AGVPe1Ce6C0DwyQxFUpovScxINO4qFBJk6ZVVMCg1MPjRTeNdDYZLB6IAIyWIWjQLwd2L hFii08OWHc7/eVN8p6wHHlMCk2IRa0xSleYou/5K/Q0Ix9Oo4BlQsf99AtK28ZJr7u+Cew8A3g2 wOJIKP2L84cScUVpvbFjxAFmK7HE6n1YmrRzU+JjNzs1cidkL78fAURC2b3GOYaF66KHNg37rus zn3+AUFU3mAy0WkYP6bmDk2W8jVlMPHo7FHFS96ZF2XYl9CWUhS5ssg= X-Google-Smtp-Source: AGHT+IEBiHMsSRSIfUNYli1xMt3Ndd9iF3r/FiZIa8NwO+yyTNgjVUysuPXb/9spmDvKm+4fSFcrjw== X-Received: by 2002:a05:6a00:1816:b0:730:7771:39c6 with SMTP id d2e1a72fcca58-7326179e950mr13452223b3a.8.1739782685095; Mon, 17 Feb 2025 00:58:05 -0800 (PST) Received: from anup-ubuntu-vm.localdomain ([122.171.22.227]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-73242546867sm7632018b3a.24.2025.02.17.00.57.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Feb 2025 00:58:04 -0800 (PST) From: Anup Patel To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org Subject: [PATCH v6 02/10] irqchip/irq-msi-lib: Optionally set default irq_eoi/irq_ack Date: Mon, 17 Feb 2025 14:26:48 +0530 Message-ID: <20250217085657.789309-3-apatel@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250217085657.789309-1-apatel@ventanamicro.com> References: <20250217085657.789309-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250217_005805_770591_7E35808C X-CRM114-Status: GOOD ( 16.85 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anup Patel , Andrew Lunn , Atish Patra , imx@lists.linux.dev, Marc Zyngier , Sascha Hauer , Paul Walmsley , linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Palmer Dabbelt , Pengutronix Kernel Team , hpa@zytor.com, Anup Patel , Andrew Jones , Shawn Guo , Gregory Clement , linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Thomas Gleixner Introduce chip_flags in struct msi_parent_ops. This allows msi_lib_init_dev_msi_info() set default irq_eoi/irq_ack callbacks only when the corresponding flags are set in the chip_flags. Signed-off-by: Thomas Gleixner Signed-off-by: Anup Patel --- drivers/irqchip/irq-gic-v2m.c | 1 + drivers/irqchip/irq-imx-mu-msi.c | 1 + drivers/irqchip/irq-msi-lib.c | 11 ++++++----- drivers/irqchip/irq-mvebu-gicp.c | 1 + drivers/irqchip/irq-mvebu-odmi.c | 1 + drivers/irqchip/irq-mvebu-sei.c | 1 + include/linux/msi.h | 11 +++++++++++ 7 files changed, 22 insertions(+), 5 deletions(-) diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c index be35c5349986..1e3476c335ca 100644 --- a/drivers/irqchip/irq-gic-v2m.c +++ b/drivers/irqchip/irq-gic-v2m.c @@ -255,6 +255,7 @@ static void __init gicv2m_teardown(void) static struct msi_parent_ops gicv2m_msi_parent_ops = { .supported_flags = GICV2M_MSI_FLAGS_SUPPORTED, .required_flags = GICV2M_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PCI_MSI | MATCH_PLATFORM_MSI, .prefix = "GICv2m-", diff --git a/drivers/irqchip/irq-imx-mu-msi.c b/drivers/irqchip/irq-imx-mu-msi.c index 4342a21de1eb..69aacdfc8bef 100644 --- a/drivers/irqchip/irq-imx-mu-msi.c +++ b/drivers/irqchip/irq-imx-mu-msi.c @@ -214,6 +214,7 @@ static void imx_mu_msi_irq_handler(struct irq_desc *desc) static const struct msi_parent_ops imx_mu_msi_parent_ops = { .supported_flags = IMX_MU_MSI_FLAGS_SUPPORTED, .required_flags = IMX_MU_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PLATFORM_MSI, .prefix = "MU-MSI-", diff --git a/drivers/irqchip/irq-msi-lib.c b/drivers/irqchip/irq-msi-lib.c index d8e29fc0d406..51464c6257f3 100644 --- a/drivers/irqchip/irq-msi-lib.c +++ b/drivers/irqchip/irq-msi-lib.c @@ -28,6 +28,7 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, struct msi_domain_info *info) { const struct msi_parent_ops *pops = real_parent->msi_parent_ops; + struct irq_chip *chip = info->chip; u32 required_flags; /* Parent ops available? */ @@ -92,10 +93,10 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, info->flags |= required_flags; /* Chip updates for all child bus types */ - if (!info->chip->irq_eoi) - info->chip->irq_eoi = irq_chip_eoi_parent; - if (!info->chip->irq_ack) - info->chip->irq_ack = irq_chip_ack_parent; + if (!chip->irq_eoi && (pops->chip_flags & MSI_CHIP_FLAG_SET_EOI)) + chip->irq_eoi = irq_chip_eoi_parent; + if (!chip->irq_ack && (pops->chip_flags & MSI_CHIP_FLAG_SET_ACK)) + chip->irq_ack = irq_chip_ack_parent; /* * The device MSI domain can never have a set affinity callback. It @@ -105,7 +106,7 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, * device MSI domain aside of mask/unmask which is provided e.g. by * PCI/MSI device domains. */ - info->chip->irq_set_affinity = msi_domain_set_affinity; + chip->irq_set_affinity = msi_domain_set_affinity; return true; } EXPORT_SYMBOL_GPL(msi_lib_init_dev_msi_info); diff --git a/drivers/irqchip/irq-mvebu-gicp.c b/drivers/irqchip/irq-mvebu-gicp.c index 2b6183919ea4..d67f93f6d750 100644 --- a/drivers/irqchip/irq-mvebu-gicp.c +++ b/drivers/irqchip/irq-mvebu-gicp.c @@ -161,6 +161,7 @@ static const struct irq_domain_ops gicp_domain_ops = { static const struct msi_parent_ops gicp_msi_parent_ops = { .supported_flags = GICP_MSI_FLAGS_SUPPORTED, .required_flags = GICP_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_GENERIC_MSI, .bus_select_mask = MATCH_PLATFORM_MSI, .prefix = "GICP-", diff --git a/drivers/irqchip/irq-mvebu-odmi.c b/drivers/irqchip/irq-mvebu-odmi.c index ff19bfd258dc..28f7e81df94f 100644 --- a/drivers/irqchip/irq-mvebu-odmi.c +++ b/drivers/irqchip/irq-mvebu-odmi.c @@ -157,6 +157,7 @@ static const struct irq_domain_ops odmi_domain_ops = { static const struct msi_parent_ops odmi_msi_parent_ops = { .supported_flags = ODMI_MSI_FLAGS_SUPPORTED, .required_flags = ODMI_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_GENERIC_MSI, .bus_select_mask = MATCH_PLATFORM_MSI, .prefix = "ODMI-", diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c index 065166ab5dbc..ebd4a9014e8d 100644 --- a/drivers/irqchip/irq-mvebu-sei.c +++ b/drivers/irqchip/irq-mvebu-sei.c @@ -356,6 +356,7 @@ static void mvebu_sei_reset(struct mvebu_sei *sei) static const struct msi_parent_ops sei_msi_parent_ops = { .supported_flags = SEI_MSI_FLAGS_SUPPORTED, .required_flags = SEI_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_mask = MATCH_PLATFORM_MSI, .bus_select_token = DOMAIN_BUS_GENERIC_MSI, .prefix = "SEI-", diff --git a/include/linux/msi.h b/include/linux/msi.h index b10093c4d00e..9abef442c146 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -558,11 +558,21 @@ enum { MSI_FLAG_NO_AFFINITY = (1 << 21), }; +/* + * Flags for msi_parent_ops::chip_flags + */ +enum { + MSI_CHIP_FLAG_SET_EOI = (1 << 0), + MSI_CHIP_FLAG_SET_ACK = (1 << 1), +}; + /** * struct msi_parent_ops - MSI parent domain callbacks and configuration info * * @supported_flags: Required: The supported MSI flags of the parent domain * @required_flags: Optional: The required MSI flags of the parent MSI domain + * @chip_flags: Optional: Select MSI chip callbacks to update with defaults + * in msi_lib_init_dev_msi_info(). * @bus_select_token: Optional: The bus token of the real parent domain for * irq_domain::select() * @bus_select_mask: Optional: A mask of supported BUS_DOMAINs for @@ -575,6 +585,7 @@ enum { struct msi_parent_ops { u32 supported_flags; u32 required_flags; + u32 chip_flags; u32 bus_select_token; u32 bus_select_mask; const char *prefix;