From patchwork Mon Mar 22 16:18:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinicius Costa Gomes X-Patchwork-Id: 12155443 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF4CDC433C1 for ; Mon, 22 Mar 2021 16:20:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B6E6D6198D for ; Mon, 22 Mar 2021 16:20:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231773AbhCVQTv (ORCPT ); Mon, 22 Mar 2021 12:19:51 -0400 Received: from mga07.intel.com ([134.134.136.100]:21216 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231593AbhCVQTa (ORCPT ); Mon, 22 Mar 2021 12:19:30 -0400 IronPort-SDR: MGZobCwmm8VgOMYrfUylQO4pSYX5tx9RgIJg4Q1pTxpVxfj4QZ9wd9YWLRZ4ZOh4Gxu9u5z3TJ bswqKqv6jG2Q== X-IronPort-AV: E=McAfee;i="6000,8403,9931"; a="254301395" X-IronPort-AV: E=Sophos;i="5.81,269,1610438400"; d="scan'208";a="254301395" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2021 09:19:25 -0700 IronPort-SDR: 5c3ZiwwB78EO2tVIHQEc+MdH8/9R7WLhGysts2Xq309MQy31g6pY0Tl4vqKTzXIZSKe3gZVQ5Z t+7Y296RGSPQ== X-IronPort-AV: E=Sophos;i="5.81,269,1610438400"; d="scan'208";a="407893525" Received: from canguven-mobl1.amr.corp.intel.com (HELO localhost.localdomain) ([10.255.87.118]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2021 09:19:23 -0700 From: Vinicius Costa Gomes To: intel-wired-lan@lists.osuosl.org Cc: Vinicius Costa Gomes , sasha.neftin@intel.com, anthony.l.nguyen@intel.com, linux-pci@vger.kernel.org, bhelgaas@google.com, netdev@vger.kernel.org, mlichvar@redhat.com, richardcochran@gmail.com Subject: [PATCH next-queue v3 1/3] Revert "PCI: Make pci_enable_ptm() private" Date: Mon, 22 Mar 2021 09:18:20 -0700 Message-Id: <20210322161822.1546454-2-vinicius.gomes@intel.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210322161822.1546454-1-vinicius.gomes@intel.com> References: <20210322161822.1546454-1-vinicius.gomes@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Make pci_enable_ptm() accessible from the drivers. Even if PTM still works on the platform I am using without calling this function, it might be possible that it's not always the case. Exposing this to the driver enables the driver to use the 'ptm_enabled' field of 'pci_dev' to check if PTM is enabled or not. This reverts commit ac6c26da29c12fa511c877c273ed5c939dc9e96c. Signed-off-by: Vinicius Costa Gomes Acked-by: Bjorn Helgaas --- drivers/pci/pci.h | 3 --- include/linux/pci.h | 7 +++++++ 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index ef7c4661314f..2c61557e1cc1 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -599,11 +599,8 @@ static inline void pcie_ecrc_get_policy(char *str) { } #ifdef CONFIG_PCIE_PTM void pci_ptm_init(struct pci_dev *dev); -int pci_enable_ptm(struct pci_dev *dev, u8 *granularity); #else static inline void pci_ptm_init(struct pci_dev *dev) { } -static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity) -{ return -EINVAL; } #endif struct pci_dev_reset_methods { diff --git a/include/linux/pci.h b/include/linux/pci.h index 86c799c97b77..3d3dc07eac3b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1610,6 +1610,13 @@ static inline bool pci_aer_available(void) { return false; } bool pci_ats_disabled(void); +#ifdef CONFIG_PCIE_PTM +int pci_enable_ptm(struct pci_dev *dev, u8 *granularity); +#else +static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity) +{ return -EINVAL; } +#endif + void pci_cfg_access_lock(struct pci_dev *dev); bool pci_cfg_access_trylock(struct pci_dev *dev); void pci_cfg_access_unlock(struct pci_dev *dev);