From patchwork Fri Oct 2 04:48:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunihiko Hayashi X-Patchwork-Id: 11812849 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 1B47C139A for ; Fri, 2 Oct 2020 04:49:15 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E215020754 for ; Fri, 2 Oct 2020 04:49:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VVSJTAhP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E215020754 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=socionext.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id: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=C3Oikw6jKKvCgk4lXQvq1NVuB+oG1n5RpQaXnKMCncg=; b=VVSJTAhPpPJ7hwM7hoa9IB4PTf FX8im136UY++ljiwd+1ElqHuaz8JxntQAP1Dsqq2DuCrNFVW2iVpLqvqritmb4ivOwl5SMKURa7fn hEEocvFm5xoIxaZxBeY2T4dSZy5XFPKemRZaBiT8vE1BVWWqswU/EGsXNv5WLwQ++fo+SJyZlR10P tAMir/LHrs0rHSikYRj8PM/H3c29u7KdWF0DJdIeaQC9jRdGGEqOe/rEgkCeUfeIDrcMaHYmGqmwb Ba4Q/sjzOtMMB14Bi/Xwehy2wW7ynfgfC8qjUmG6KhDjlGs23r+C1Ku/ofPxDwDliSiuuhdxS65ol bStgnNhg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kOD0C-00032L-DY; Fri, 02 Oct 2020 04:49:04 +0000 Received: from mx.socionext.com ([202.248.49.38]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kOD09-00030g-FO for linux-arm-kernel@lists.infradead.org; Fri, 02 Oct 2020 04:49:02 +0000 Received: from unknown (HELO kinkan-ex.css.socionext.com) ([172.31.9.52]) by mx.socionext.com with ESMTP; 02 Oct 2020 13:48:58 +0900 Received: from mail.mfilter.local (m-filter-1 [10.213.24.61]) by kinkan-ex.css.socionext.com (Postfix) with ESMTP id C684A180B3C; Fri, 2 Oct 2020 13:48:58 +0900 (JST) Received: from 172.31.9.51 (172.31.9.51) by m-FILTER with ESMTP; Fri, 2 Oct 2020 13:48:58 +0900 Received: from plum.e01.socionext.com (unknown [10.213.132.32]) by kinkan.css.socionext.com (Postfix) with ESMTP id 144CC1A0509; Fri, 2 Oct 2020 13:48:58 +0900 (JST) From: Kunihiko Hayashi To: Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Kishon Vijay Abraham I Subject: [PATCH 1/3] PCI: endpoint: Add 'started' to pci_epc to set whether the controller is started Date: Fri, 2 Oct 2020 13:48:45 +0900 Message-Id: <1601614127-13837-2-git-send-email-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1601614127-13837-1-git-send-email-hayashi.kunihiko@socionext.com> References: <1601614127-13837-1-git-send-email-hayashi.kunihiko@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201002_004901_676700_DF50B321 X-CRM114-Status: GOOD ( 17.29 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kunihiko Hayashi , Masami Hiramatsu , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Jassi Brar , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This adds a member 'started' as a boolean value to struct pci_epc to set whether the controller is started, and also adds a function to get the value. Signed-off-by: Kunihiko Hayashi --- drivers/pci/endpoint/pci-epc-core.c | 2 ++ include/linux/pci-epc.h | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index cadd3db..155be574 100644 --- a/drivers/pci/endpoint/pci-epc-core.c +++ b/drivers/pci/endpoint/pci-epc-core.c @@ -148,6 +148,7 @@ void pci_epc_stop(struct pci_epc *epc) mutex_lock(&epc->lock); epc->ops->stop(epc); + epc->started = false; mutex_unlock(&epc->lock); } EXPORT_SYMBOL_GPL(pci_epc_stop); @@ -170,6 +171,7 @@ int pci_epc_start(struct pci_epc *epc) mutex_lock(&epc->lock); ret = epc->ops->start(epc); + epc->started = true; mutex_unlock(&epc->lock); return ret; diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index cc66bec..d875d2d 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -107,6 +107,7 @@ struct pci_epc_mem { * @lock: mutex to protect pci_epc ops * @function_num_map: bitmap to manage physical function number * @notifier: used to notify EPF of any EPC events (like linkup) + * @started: true if this EPC is started */ struct pci_epc { struct device dev; @@ -121,6 +122,7 @@ struct pci_epc { struct mutex lock; unsigned long function_num_map; struct atomic_notifier_head notifier; + bool started; }; /** @@ -167,6 +169,11 @@ pci_epc_register_notifier(struct pci_epc *epc, struct notifier_block *nb) return atomic_notifier_chain_register(&epc->notifier, nb); } +static inline bool pci_epc_is_started(struct pci_epc *epc) +{ + return epc->started; +} + struct pci_epc * __devm_pci_epc_create(struct device *dev, const struct pci_epc_ops *ops, struct module *owner);