From patchwork Tue Aug 4 12:44:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Alex_Benn=C3=A9e?= X-Patchwork-Id: 11700369 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 539A9722 for ; Tue, 4 Aug 2020 12:46:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C722208C7 for ; Tue, 4 Aug 2020 12:46:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="T8YDxwS+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726210AbgHDMqQ (ORCPT ); Tue, 4 Aug 2020 08:46:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728311AbgHDMo3 (ORCPT ); Tue, 4 Aug 2020 08:44:29 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B82AC0617A0 for ; Tue, 4 Aug 2020 05:44:24 -0700 (PDT) Received: by mail-wm1-x342.google.com with SMTP id x5so2548582wmi.2 for ; Tue, 04 Aug 2020 05:44:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bN3d8Ia77BH2nBiHDQ6zBNPByWQO01hAGf1Nc3k/FjU=; b=T8YDxwS+GAi/l87EqEDVnHA6L2vWdoJLRomogp4zswguktwRhtfY6a3S80oC+la+7Y uBOGZPkWUazcUyhEPQsfO3QZ16muTbOfxNxa4uXdYwfXdmkfVzoMRSW4m/T7f0i4RLf7 dX+k8C7kUSi09yoGq/WkXRUuQWQIUOu80qSJ8B9K9QLhl5toYoFUrNUqUcTwdRw8GrmH fMUA0SnmjEveRBv57i02a+TxYyxNXCrEDBzYs7JuFuOONWrjDdCFY0ND5r47wpeLc24V fJMl0bur8BNgusZj++pQeoEnXBDmf1q7b4PbFj3Wzq0ri29fof8CCFp8ai4icK9pDdY1 JhtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=bN3d8Ia77BH2nBiHDQ6zBNPByWQO01hAGf1Nc3k/FjU=; b=NkaEweb9yetJcUncRn7xsPJo7ymD3GUjbl9IZe+2HEpVuVFV+IE6UcvnyaXluCL3Tx g6zXtw1z/iuMXszvN7OD7dRELw5wee+EEal0x8odhMV0HhLDQsmQzTONs71Sh81tFGbY dBGyh+hTBFr0HvIKirwoQdAJ6ebGGhSrmoyVfnFRLldz0vFIfcCkMeSqDNMVn2Ohc4z7 7LXzQgKlC73DwJ96ZtdzFCCBTomrM4iU9YPdVjBxrvw0kBtb9ehc/v4sXKk/uU/mRmHc L8kdK6hZoAm0lta5pzetmygQcISg04wq7RoAr8t3ktQ2wj+aCbq+0DeaNAgWM0pTTHLs YZnQ== X-Gm-Message-State: AOAM532/u1CQkhlqOb3Obxr5KFWmE7p8WuffHQxzYGATSZjoephTTEYS 06XLg+jjBTF/ziO2hWYs8wLudg== X-Google-Smtp-Source: ABdhPJz9A0fUr0s+57vaSQaPT8GQEVwMIBWtT6cib6RQGYxAGZypLJ4R2NHV8/yEEKGRo0R1n0bqCQ== X-Received: by 2002:a7b:c257:: with SMTP id b23mr3829607wmj.164.1596545062751; Tue, 04 Aug 2020 05:44:22 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id b137sm4843577wmb.9.2020.08.04.05.44.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2020 05:44:18 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 860581FF87; Tue, 4 Aug 2020 13:44:17 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, christoffer.dall@arm.com, maz@kernel.org, =?utf-8?q?Alex_Benn=C3=A9e?= , Robert Richter , linux-pci@vger.kernel.org Subject: [PATCH v1 1/3] arm64: allow de-selection of ThunderX PCI controllers Date: Tue, 4 Aug 2020 13:44:15 +0100 Message-Id: <20200804124417.27102-2-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200804124417.27102-1-alex.bennee@linaro.org> References: <20200804124417.27102-1-alex.bennee@linaro.org> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org For a pure VirtIO guest bringing in all the PCI quirk handling adds a significant amount of bloat to kernel we don't need. Solve this by adding a CONFIG symbol for the ThunderX PCI devices and allowing it to be turned off. Saving over 300k from the uncompressed vmlinux: -rwxr-xr-x 1 alex alex 85652472 Aug 3 16:48 vmlinux* -rwxr-xr-x 1 alex alex 86033880 Aug 3 16:39 vmlinux.orig* Signed-off-by: Alex Bennée Cc: Robert Richter Cc: linux-pci@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org --- arch/arm64/Kconfig.platforms | 2 ++ arch/arm64/configs/defconfig | 1 + drivers/pci/controller/Kconfig | 7 +++++++ drivers/pci/controller/Makefile | 4 ++-- 4 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index 8dd05b2a925c..a328eebdaa59 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -253,12 +253,14 @@ config ARCH_SPRD config ARCH_THUNDER bool "Cavium Inc. Thunder SoC Family" + select PCI_THUNDER help This enables support for Cavium's Thunder Family of SoCs. config ARCH_THUNDER2 bool "Cavium ThunderX2 Server Processors" select GPIOLIB + select PCI_THUNDER help This enables support for Cavium's ThunderX2 CN99XX family of server processors. diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 2ca7ba69c318..d840cba99941 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -199,6 +199,7 @@ CONFIG_PCI_HOST_GENERIC=y CONFIG_PCI_XGENE=y CONFIG_PCIE_ALTERA=y CONFIG_PCIE_ALTERA_MSI=y +CONFIG_PCI_THUNDER=y CONFIG_PCI_HOST_THUNDER_PEM=y CONFIG_PCI_HOST_THUNDER_ECAM=y CONFIG_PCIE_ROCKCHIP_HOST=m diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig index adddf21fa381..28335ffa5d48 100644 --- a/drivers/pci/controller/Kconfig +++ b/drivers/pci/controller/Kconfig @@ -286,6 +286,13 @@ config PCI_LOONGSON Say Y here if you want to enable PCI controller support on Loongson systems. +config PCI_THUNDER + bool "Thunder X PCIE controllers" + depends on ARM64 + select PCI_QUIRKS + help + Say Y here to enable ThunderX ECAM and PEM PCI controllers. + source "drivers/pci/controller/dwc/Kconfig" source "drivers/pci/controller/mobiveil/Kconfig" source "drivers/pci/controller/cadence/Kconfig" diff --git a/drivers/pci/controller/Makefile b/drivers/pci/controller/Makefile index efd9733ead26..8fad4781a5d3 100644 --- a/drivers/pci/controller/Makefile +++ b/drivers/pci/controller/Makefile @@ -45,8 +45,8 @@ obj-y += mobiveil/ # ARM64 and use internal ifdefs to only build the pieces we need # depending on whether ACPI, the DT driver, or both are enabled. +obj-$(CONFIG_PCI_THUNDER) += pci-thunder-ecam.o +obj-$(CONFIG_PCI_THUNDER) += pci-thunder-pem.o ifdef CONFIG_PCI -obj-$(CONFIG_ARM64) += pci-thunder-ecam.o -obj-$(CONFIG_ARM64) += pci-thunder-pem.o obj-$(CONFIG_ARM64) += pci-xgene.o endif From patchwork Tue Aug 4 12:44:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Alex_Benn=C3=A9e?= X-Patchwork-Id: 11700371 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BE71F722 for ; Tue, 4 Aug 2020 12:47:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8818208C7 for ; Tue, 4 Aug 2020 12:47:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="nMnqkLp9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726789AbgHDMqy (ORCPT ); Tue, 4 Aug 2020 08:46:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727997AbgHDMoW (ORCPT ); Tue, 4 Aug 2020 08:44:22 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D7EBC061757 for ; 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Tue, 04 Aug 2020 05:44:20 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id r206sm4554096wma.6.2020.08.04.05.44.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2020 05:44:18 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 9218B1FF8C; Tue, 4 Aug 2020 13:44:17 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, christoffer.dall@arm.com, maz@kernel.org, =?utf-8?q?Alex_Benn=C3=A9e?= Subject: [PATCH v1 2/3] arm64: gate the whole of pci-xgene on CONFIG_PCI_XGENE Date: Tue, 4 Aug 2020 13:44:16 +0100 Message-Id: <20200804124417.27102-3-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200804124417.27102-1-alex.bennee@linaro.org> References: <20200804124417.27102-1-alex.bennee@linaro.org> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This is a little weirder as bits of the file are already conditioned on the exiting symbol. Either way they are not actually needed for non-xgene machines saving another 12k: -rwxr-xr-x 1 alex alex 86033880 Aug 3 16:39 vmlinux.orig* -rwxr-xr-x 1 alex alex 85652472 Aug 3 16:54 vmlinux.rm-thunder* -rwxr-xr-x 1 alex alex 85639808 Aug 3 17:12 vmlinux* Signed-off-by: Alex Bennée --- drivers/pci/controller/Makefile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/pci/controller/Makefile b/drivers/pci/controller/Makefile index 8fad4781a5d3..3b9b72f5773a 100644 --- a/drivers/pci/controller/Makefile +++ b/drivers/pci/controller/Makefile @@ -47,6 +47,4 @@ obj-y += mobiveil/ obj-$(CONFIG_PCI_THUNDER) += pci-thunder-ecam.o obj-$(CONFIG_PCI_THUNDER) += pci-thunder-pem.o -ifdef CONFIG_PCI -obj-$(CONFIG_ARM64) += pci-xgene.o -endif +obj-$(CONFIG_PCI_XGENE) += pci-xgene.o From patchwork Tue Aug 4 12:44:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Alex_Benn=C3=A9e?= X-Patchwork-Id: 11700363 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A98B9722 for ; Tue, 4 Aug 2020 12:46:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A1C9222C9F for ; Tue, 4 Aug 2020 12:46:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Riv8iutg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727987AbgHDMoZ (ORCPT ); Tue, 4 Aug 2020 08:44:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726210AbgHDMoV (ORCPT ); Tue, 4 Aug 2020 08:44:21 -0400 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6782C06174A for ; Tue, 4 Aug 2020 05:44:20 -0700 (PDT) Received: by mail-wr1-x441.google.com with SMTP id z18so33702416wrm.12 for ; Tue, 04 Aug 2020 05:44:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=CYDox3KQ1JETO7R6nCajEi5q9XM0wuEKwlQrdfldtzE=; b=Riv8iutgfQUgNDMN92DtQvb/ueHJ6AIreMGAIsPCtm4ILvbZOn+PBNFru/JxFRQn+a 9TfiKx4DTAO1/mtV9wsMqag4ynofuu+qJ8KcnT0H01tQepbNaqDTZvqQvMuZtPQBOduf CxLDVXhPdqFLT0zbGguTGrJKZfH+S/lGnAzhvNTBi0FcUKC5HJp/+r/qZDgMqCN1u61M ZIBRfcVMUR48Uz0nrWv/JeBjsaFxjG5I/w8jfhHReJuMa+Pm25oX2mloao7+N1Yr/e42 uovU2IyFUipCeXc7bYv0WjUNANHbOH3ka4foDQ5we7li93TpmE8H4yyBhs21Q8mbmEQA 00PQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=CYDox3KQ1JETO7R6nCajEi5q9XM0wuEKwlQrdfldtzE=; b=sZFEiDBrVbZJXjMpuuuw7OkGxU4lrmGi+gxJQ1/dFnX6/MoLgBtw/NBoaNj4DUAm4D 7rvaSIuv9yOzwqzRMeOTxaF8vnNR0JL7BZYGN+Xa+skSkYhIgzaVelPHJ8v/ZVGw2XRd jUx/284n6UID6VFvbh3AzsVhyGRRhgkriYYAuhHFNyO7ZmwXcAMn/V3Vqd+hRJnallgb EChx6ReTx+f6bsLTTb1IuWKqUE6/6pnkkcUsCV1SrHng+ahfT20gy+xk06MOqMrDP86+ YeSvvLpZnE3L2ogR+KsMTIrUyoWWWici2bAHxWiJm8dU39twMqicoNkEw09A2s+BijQr 0TjA== X-Gm-Message-State: AOAM533ylevJV7pRCvyph7K7Yu1UEuoT/5lLtlcwJQAY2eznOCxfR9Pl yAGUZHQzI43dnAQ0xJgIi4H8AA== X-Google-Smtp-Source: ABdhPJy369HvI22rb0UHPSZq9AsVjFavkg1pT+b1lsUC4Du192zTR5pC4Bv0+KzFRIkrLbZspUmmgg== X-Received: by 2002:a5d:6a4a:: with SMTP id t10mr20525689wrw.360.1596545059657; Tue, 04 Aug 2020 05:44:19 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id z207sm4576048wmc.2.2020.08.04.05.44.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2020 05:44:18 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 9DC9E1FF8F; Tue, 4 Aug 2020 13:44:17 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, christoffer.dall@arm.com, maz@kernel.org, =?utf-8?q?Alex_Benn=C3=A9e?= Subject: [PATCH v1 3/3] kernel/configs: don't include PCI_QUIRKS in KVM guest configs Date: Tue, 4 Aug 2020 13:44:17 +0100 Message-Id: <20200804124417.27102-4-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200804124417.27102-1-alex.bennee@linaro.org> References: <20200804124417.27102-1-alex.bennee@linaro.org> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The VIRTIO_PCI support is an idealised PCI bus, we don't need a bunch of bloat for real world hardware for a VirtIO guest. Signed-off-by: Alex Bennée --- kernel/configs/kvm_guest.config | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/configs/kvm_guest.config b/kernel/configs/kvm_guest.config index 208481d91090..672863a2fdf1 100644 --- a/kernel/configs/kvm_guest.config +++ b/kernel/configs/kvm_guest.config @@ -13,6 +13,7 @@ CONFIG_IP_PNP_DHCP=y CONFIG_BINFMT_ELF=y CONFIG_PCI=y CONFIG_PCI_MSI=y +CONFIG_PCI_QUIRKS=n CONFIG_DEBUG_KERNEL=y CONFIG_VIRTUALIZATION=y CONFIG_HYPERVISOR_GUEST=y