From patchwork Fri Jun 4 22:09:30 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: 12300857 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 31B06C4743E for ; Fri, 4 Jun 2021 22:10:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1484A61405 for ; Fri, 4 Jun 2021 22:10:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230059AbhFDWLx (ORCPT ); Fri, 4 Jun 2021 18:11:53 -0400 Received: from mga05.intel.com ([192.55.52.43]:24251 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229746AbhFDWLw (ORCPT ); Fri, 4 Jun 2021 18:11:52 -0400 IronPort-SDR: obD8BAh+sQD4caWd2lZNutVSBGnQdG8grzNQD5P4Wa+miihMmPV1vqWnTO+MlKSIVI2URuJnZc ZTQLRQrnLAYg== X-IronPort-AV: E=McAfee;i="6200,9189,10005"; a="290007345" X-IronPort-AV: E=Sophos;i="5.83,249,1616482800"; d="scan'208";a="290007345" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jun 2021 15:10:05 -0700 IronPort-SDR: DV48tgC5VGoiO3anZeBplyw96bHiclDlYEMKsFMQp8dWKkaPmUUds7Du0Jy+FnJke+yPfu8Zh2 CiKQn8fiGTlw== X-IronPort-AV: E=Sophos;i="5.83,249,1616482800"; d="scan'208";a="439326613" Received: from lmrivera-mobl.amr.corp.intel.com (HELO localhost.localdomain) ([10.251.24.65]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jun 2021 15:10:04 -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, hch@infradead.org, helgaas@kernel.org Subject: [PATCH next-queue v4 1/4] Revert "PCI: Make pci_enable_ptm() private" Date: Fri, 4 Jun 2021 15:09:30 -0700 Message-Id: <20210604220933.3974558-2-vinicius.gomes@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210604220933.3974558-1-vinicius.gomes@intel.com> References: <20210604220933.3974558-1-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 37c913bbc6e1..32dab36c717e 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -593,11 +593,8 @@ 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 c20211e59a57..a687dda262dd 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1617,6 +1617,13 @@ 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);