From patchwork Thu Jul 31 21:59:24 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Kling via B4 Relay X-Patchwork-Id: 2117765 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=djiJg1l4; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:4601:e00::3; helo=am.mirrors.kernel.org; envelope-from=linux-pci+bounces-33260-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [IPv6:2604:1380:4601:e00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4btNKJ4QMFz1xwb for ; Fri, 1 Aug 2025 07:59:32 +1000 (AEST) Received: from smtp.subspace.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 350A0188E04D for ; Thu, 31 Jul 2025 21:59:57 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3919E26B2D3; Thu, 31 Jul 2025 21:59:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="djiJg1l4" X-Original-To: linux-pci@vger.kernel.org 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 073142512D7; Thu, 31 Jul 2025 21:59:29 +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=1753999170; cv=none; b=FI43vqqK3C+2SqxvXzWGyQyx4SGfu8xd5Fp6Rrl7tP2cSPN95GLAsmEJlwxt/+Tma7GefkoUgXrlyIUiwPzbl2G0cJ6uqU3Iw3c5FMw6zGWoMvFUiS3roSxdFijifOnm6gsdUx31YCJIshq0NOM4jp6oOaj3XXxM5gydusPuV1U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753999170; c=relaxed/simple; bh=y9EfpfER3iG3oJpzB7Uv3sr7TbGqdJp799v9Smx2dtw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=hMizuyxMavdtMI89chXCVIy3/idAYr40wQ/g3Vb+/p5Vy1GyX+xQLfznsZJMSLIqkKm9JZKMNxODfEveldzgE/dnkPoXq6EDqo1HlvNmWL9OEMuGTw+MeYCeFUjvGnwPsU03Mep0CEp4EGrHn5rG6q0oZkIUjn6LIiIAJoAD0JA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=djiJg1l4; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPS id A201DC4CEF7; Thu, 31 Jul 2025 21:59:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753999169; bh=y9EfpfER3iG3oJpzB7Uv3sr7TbGqdJp799v9Smx2dtw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=djiJg1l4ih+UsnPUwY18CbuRXx1laKZBwwOCnAT6OOw6QYTCAO2WwpsCRZVH4ESF/ oDgcrp1n3vDYOv7DVTPqstO4L5NKk5lGN7UsV6TAqSbktWFVzOr1RQuozw7raZRwbG hg5ABhjse2nuHnQDVDWgk4H1Wus7Xxz55z7N7yQYIvEckhp5/Rt01GqNGIMMjpOKUI uCFX0E+7eYoZq5enLQwL8+WgS33ADQlGv72DDwu/R3hKaOOi0SZFT/oru2e03HmISt nF+8QDeMIGZwaMjCCSTbhA/pHWkcrfn9HSP+rCBjiYFtH973uOUik3EuDc6X2AOHLx Txe6xScz7FCWw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8FC8FC87FCA; Thu, 31 Jul 2025 21:59:29 +0000 (UTC) From: Aaron Kling via B4 Relay Date: Thu, 31 Jul 2025 16:59:24 -0500 Subject: [PATCH v7 1/3] irqdomain: Export irq_domain_free_irqs Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250731-pci-tegra-module-v7-1-cad4b088b8fb@gmail.com> References: <20250731-pci-tegra-module-v7-0-cad4b088b8fb@gmail.com> In-Reply-To: <20250731-pci-tegra-module-v7-0-cad4b088b8fb@gmail.com> To: Thomas Gleixner , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Thierry Reding , Jonathan Hunter , "Rafael J. Wysocki" , Daniel Lezcano , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Manivannan Sadhasivam , =?utf-8?q?Krzysztof_Wilczy=C5=84s?= =?utf-8?q?ki?= Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, Aaron Kling X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1753999168; l=813; i=webgeek1234@gmail.com; s=20250217; h=from:subject:message-id; bh=zJfRZvCFTASylxqukHtONT8I03A9oylELli++Nq/N/o=; b=ziUT+U5OXljSSxWG75aYDzENmEmMIKimjN6dg8rDSrrFJWgzsmIfThorogDkzvbLqnhEBKRgg rMgixqVsE2cAAdM99wuBTqH30UNpSzUrq0GG4TUFU1QXep1hO2BMgM8 X-Developer-Key: i=webgeek1234@gmail.com; a=ed25519; pk=TQwd6q26txw7bkK7B8qtI/kcAohZc7bHHGSD7domdrU= X-Endpoint-Received: by B4 Relay for webgeek1234@gmail.com/20250217 with auth_id=342 X-Original-From: Aaron Kling Reply-To: webgeek1234@gmail.com From: Aaron Kling Export irq_domain_free_irqs() to allow PCI/MSI drivers like pci-tegra to be built as a module. Reviewed-by: Thomas Gleixner Signed-off-by: Aaron Kling --- kernel/irq/irqdomain.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index c8b6de09047be768624b622a7a31fad1441de6d2..eb8eb9ee147cdc5d27a4da53ab62f852b78841f4 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -1877,6 +1877,7 @@ void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs) irq_domain_free_irq_data(virq, nr_irqs); irq_free_descs(virq, nr_irqs); } +EXPORT_SYMBOL_GPL(irq_domain_free_irqs); static void irq_domain_free_one_irq(struct irq_domain *domain, unsigned int virq) { From patchwork Thu Jul 31 21:59:25 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Kling via B4 Relay X-Patchwork-Id: 2117763 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; 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Thu, 31 Jul 2025 21:59:29 +0000 (UTC) From: Aaron Kling via B4 Relay Date: Thu, 31 Jul 2025 16:59:25 -0500 Subject: [PATCH v7 2/3] cpuidle: tegra: Export tegra_cpuidle_pcie_irqs_in_use Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250731-pci-tegra-module-v7-2-cad4b088b8fb@gmail.com> References: <20250731-pci-tegra-module-v7-0-cad4b088b8fb@gmail.com> In-Reply-To: <20250731-pci-tegra-module-v7-0-cad4b088b8fb@gmail.com> To: Thomas Gleixner , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Thierry Reding , Jonathan Hunter , "Rafael J. Wysocki" , Daniel Lezcano , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Manivannan Sadhasivam , =?utf-8?q?Krzysztof_Wilczy=C5=84s?= =?utf-8?q?ki?= Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, Aaron Kling X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1753999168; l=805; i=webgeek1234@gmail.com; s=20250217; h=from:subject:message-id; bh=BQaFZtR7Fm7B7nsp2ZQnjqbnUiyMM8zRmZn2k2TW44w=; b=wfFDEDELw372gFNOlZws1E4tAwNhCQGy1Cm8MSywVcEUzrZorttMs/ZN4oswzg/oR2LxGkIB3 iBjhF90b2H5Chb8th6Tx0XoU/S3JD6V4zCpe4TVJdhD/RRtWdlHoaRo X-Developer-Key: i=webgeek1234@gmail.com; a=ed25519; pk=TQwd6q26txw7bkK7B8qtI/kcAohZc7bHHGSD7domdrU= X-Endpoint-Received: by B4 Relay for webgeek1234@gmail.com/20250217 with auth_id=342 X-Original-From: Aaron Kling Reply-To: webgeek1234@gmail.com From: Aaron Kling Add export for tegra_cpuidle_pcie_irqs_in_use() so that drivers like pci-tegra can be loaded as a module. Signed-off-by: Aaron Kling --- drivers/cpuidle/cpuidle-tegra.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/cpuidle/cpuidle-tegra.c b/drivers/cpuidle/cpuidle-tegra.c index b203a93deac5f378572be90e22c73e7417adb99e..aca907a62bb5de4ee4c71c1900eacedd4b90bc0a 100644 --- a/drivers/cpuidle/cpuidle-tegra.c +++ b/drivers/cpuidle/cpuidle-tegra.c @@ -336,6 +336,7 @@ void tegra_cpuidle_pcie_irqs_in_use(void) pr_info("disabling CC6 state, since PCIe IRQs are in use\n"); tegra_cpuidle_disable_state(TEGRA_CC6); } +EXPORT_SYMBOL_GPL(tegra_cpuidle_pcie_irqs_in_use); static void tegra_cpuidle_setup_tegra114_c7_state(void) { From patchwork Thu Jul 31 21:59:26 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Kling via B4 Relay X-Patchwork-Id: 2117761 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; 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Thu, 31 Jul 2025 21:59:29 +0000 (UTC) From: Aaron Kling via B4 Relay Date: Thu, 31 Jul 2025 16:59:26 -0500 Subject: [PATCH v7 3/3] PCI: tegra: Allow building as a module Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250731-pci-tegra-module-v7-3-cad4b088b8fb@gmail.com> References: <20250731-pci-tegra-module-v7-0-cad4b088b8fb@gmail.com> In-Reply-To: <20250731-pci-tegra-module-v7-0-cad4b088b8fb@gmail.com> To: Thomas Gleixner , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Thierry Reding , Jonathan Hunter , "Rafael J. Wysocki" , Daniel Lezcano , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Manivannan Sadhasivam , =?utf-8?q?Krzysztof_Wilczy=C5=84s?= =?utf-8?q?ki?= Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, Aaron Kling X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1753999168; l=2994; i=webgeek1234@gmail.com; s=20250217; h=from:subject:message-id; bh=NwL1zgJJcNaVJMzJ4xbw0cEqWe0gRrA6/IT+IAjXFD0=; b=Hx8LT+bsI6wEqRQWtMV1xj/rCHIxQHr0EGrVFgqMOAZ06cbWwoRRXKHoXQuYwJimkhWxRNDBq zBC82thbtqnBHEyBd9EIgxwJqnKoUfNVULsJGILBhNI5JvNIZQr8JGJ X-Developer-Key: i=webgeek1234@gmail.com; a=ed25519; pk=TQwd6q26txw7bkK7B8qtI/kcAohZc7bHHGSD7domdrU= X-Endpoint-Received: by B4 Relay for webgeek1234@gmail.com/20250217 with auth_id=342 X-Original-From: Aaron Kling Reply-To: webgeek1234@gmail.com From: Aaron Kling This changes the module macro back to builtin, which does not define an exit function. This will prevent the module from being unloaded. There are concerns with modules not cleaning up IRQs on unload, thus this needs specifically disallowed. The remove callback is also dropped as it is unused. Signed-off-by: Aaron Kling --- drivers/pci/controller/Kconfig | 2 +- drivers/pci/controller/pci-tegra.c | 35 ++++------------------------------- 2 files changed, 5 insertions(+), 32 deletions(-) diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig index 886f6f43a895f8f56ce3bcabbea382b6cd3b15c2..abdc17ff7b8f54c6b1cd3ee6556753f68ae546e9 100644 --- a/drivers/pci/controller/Kconfig +++ b/drivers/pci/controller/Kconfig @@ -225,7 +225,7 @@ config PCI_HYPERV_INTERFACE driver. config PCI_TEGRA - bool "NVIDIA Tegra PCIe controller" + tristate "NVIDIA Tegra PCIe controller" depends on ARCH_TEGRA || COMPILE_TEST depends on PCI_MSI select IRQ_MSI_LIB diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c index 467ddc701adce28c5edeb6d1b423ce56068f069a..c020822bdf0b72c4cc56817a9e689256b964e9cd 100644 --- a/drivers/pci/controller/pci-tegra.c +++ b/drivers/pci/controller/pci-tegra.c @@ -2546,12 +2546,6 @@ static const struct seq_operations tegra_pcie_ports_sops = { DEFINE_SEQ_ATTRIBUTE(tegra_pcie_ports); -static void tegra_pcie_debugfs_exit(struct tegra_pcie *pcie) -{ - debugfs_remove_recursive(pcie->debugfs); - pcie->debugfs = NULL; -} - static void tegra_pcie_debugfs_init(struct tegra_pcie *pcie) { pcie->debugfs = debugfs_create_dir("pcie", NULL); @@ -2625,29 +2619,6 @@ static int tegra_pcie_probe(struct platform_device *pdev) return err; } -static void tegra_pcie_remove(struct platform_device *pdev) -{ - struct tegra_pcie *pcie = platform_get_drvdata(pdev); - struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie); - struct tegra_pcie_port *port, *tmp; - - if (IS_ENABLED(CONFIG_DEBUG_FS)) - tegra_pcie_debugfs_exit(pcie); - - pci_stop_root_bus(host->bus); - pci_remove_root_bus(host->bus); - pm_runtime_put_sync(pcie->dev); - pm_runtime_disable(pcie->dev); - - if (IS_ENABLED(CONFIG_PCI_MSI)) - tegra_pcie_msi_teardown(pcie); - - tegra_pcie_put_resources(pcie); - - list_for_each_entry_safe(port, tmp, &pcie->ports, list) - tegra_pcie_port_free(port); -} - static int tegra_pcie_pm_suspend(struct device *dev) { struct tegra_pcie *pcie = dev_get_drvdata(dev); @@ -2751,6 +2722,8 @@ static struct platform_driver tegra_pcie_driver = { .pm = &tegra_pcie_pm_ops, }, .probe = tegra_pcie_probe, - .remove = tegra_pcie_remove, }; -module_platform_driver(tegra_pcie_driver); +builtin_platform_driver(tegra_pcie_driver); +MODULE_AUTHOR("Thierry Reding "); +MODULE_DESCRIPTION("NVIDIA PCI host controller driver"); +MODULE_LICENSE("GPL");