From patchwork Tue May 26 21:39:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= X-Patchwork-Id: 11571369 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 4DBF51392 for ; Tue, 26 May 2020 21:39:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F3D1208C3 for ; Tue, 26 May 2020 21:39:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390003AbgEZVjK (ORCPT ); Tue, 26 May 2020 17:39:10 -0400 Received: from mail-lj1-f196.google.com ([209.85.208.196]:43504 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388740AbgEZVjK (ORCPT ); Tue, 26 May 2020 17:39:10 -0400 Received: by mail-lj1-f196.google.com with SMTP id q2so26370437ljm.10; Tue, 26 May 2020 14:39:08 -0700 (PDT) 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:mime-version :content-transfer-encoding; bh=sRj4tDj226LXoCqDpfgeWGCOGyN0uiUKx/LO9i4kEaU=; b=aQ2U2YuNEu6ho2y0FlgjQi0Et2YUdb0ohwt8myuuMarsY4Pt5qsql3cAixMOYkzknt 9p00XXPN8/+n8xnrtyBFFzsKPOeYzgOwNhlTORagVQrxeRgA4+VtaGmHouoFCAminJjo OUhXLsxHqiodYxmwOTc7Za0U3kQecXX0K7kflJNCthrAqYCoIegvwHwbcvgstPmJIAsc 2z+y+yktdkuCD6k7r5yhT1xxgGZhyExCLElvjS4pHJz2Gb02a2Eq3j9GF7lxrCcnj9jW TadcTgnDSgwlFpFpwfJHoK47pv0Pv38f/PdLymv/3MpnzCUiJJf2+wlAL3ftrVMW0zR/ +BvA== X-Gm-Message-State: AOAM53275t911xJWS81Ru5VD1u5TvcmpezAhVDnZMtpqKUg3bUqFMEHx b66DtzycS4t0IrT1+5PjPMB9fyIyEMos1Up1 X-Google-Smtp-Source: ABdhPJyE5OHBsrOqcY2LzpzMrxciVg2yq6VIObderbdb6PZJ5mSINBkPvHm1vORx7iC/06htVKvrDA== X-Received: by 2002:a2e:991a:: with SMTP id v26mr1577489lji.470.1590529147981; Tue, 26 May 2020 14:39:07 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id d11sm215117lji.85.2020.05.26.14.39.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 14:39:07 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: "Rafael J. Wysocki" , Len Brown , linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH] PCI: Rename _DSM constants to align with PCI Firmware specification Date: Tue, 26 May 2020 21:39:05 +0000 Message-Id: <20200526213905.2479381-1-kw@linux.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Rename PCI-related _DSM constants to better align them with the PCI Firmware specification (see PCI Firmware Specification, Revision 3.2, Section 4.6., p. 58). All the constants names should correlate more strongly with the descriptions in the aforementioned specification to make them unambiguous. Additionally, all of the renamed constants will use the DSM_ prefix, similarly to the PCI _OSC constants that use the OSC_ prefix, to make it clear what these are. Signed-off-by: Krzysztof Wilczyński --- drivers/acpi/pci_root.c | 2 +- drivers/pci/pci-acpi.c | 4 ++-- drivers/pci/pci-label.c | 4 ++-- include/linux/pci-acpi.h | 10 ++++++---- 4 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index ac8ad6cb82aa..ee4d0bf717fd 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -938,7 +938,7 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, * assignments made by firmware for this host bridge. */ obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 1, - IGNORE_PCI_BOOT_CONFIG_DSM, NULL); + DSM_PCI_IGNORE_BOOT_CONFIG, NULL); if (obj && obj->type == ACPI_TYPE_INTEGER && obj->integer.value == 0) host_bridge->preserve_config = 1; ACPI_FREE(obj); diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index d21969fba6ab..a2e9f01434de 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -1128,7 +1128,7 @@ void acpi_pci_add_bus(struct pci_bus *bus) return; obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 3, - RESET_DELAY_DSM, NULL); + DSM_PCI_POWER_ON_RESET_DELAY, NULL); if (!obj) return; @@ -1193,7 +1193,7 @@ static void pci_acpi_optimize_delay(struct pci_dev *pdev, pdev->d3cold_delay = 0; obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 3, - FUNCTION_DELAY_DSM, NULL); + DSM_PCI_DEVICE_READINESS_DURATIONS, NULL); if (!obj) return; diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index a5910f942857..69db1fd10f21 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -178,7 +178,7 @@ static int dsm_get_label(struct device *dev, char *buf, return -1; obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 0x2, - DEVICE_LABEL_DSM, NULL); + DSM_PCI_PCIE_DEVICE_NAME, NULL); if (!obj) return -1; @@ -218,7 +218,7 @@ static bool device_has_dsm(struct device *dev) return false; return !!acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2, - 1 << DEVICE_LABEL_DSM); + 1 << DSM_PCI_PCIE_DEVICE_NAME); } static umode_t acpi_index_string_exist(struct kobject *kobj, diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 2d155bfb8fbf..21b32fe47607 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -107,10 +107,12 @@ static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } #endif extern const guid_t pci_acpi_dsm_guid; -#define IGNORE_PCI_BOOT_CONFIG_DSM 0x05 -#define DEVICE_LABEL_DSM 0x07 -#define RESET_DELAY_DSM 0x08 -#define FUNCTION_DELAY_DSM 0x09 + +/* _DSM Definitions for PCI */ +#define DSM_PCI_IGNORE_BOOT_CONFIG 0x05 +#define DSM_PCI_PCIE_DEVICE_NAME 0x07 +#define DSM_PCI_POWER_ON_RESET_DELAY 0x08 +#define DSM_PCI_DEVICE_READINESS_DURATIONS 0x09 #ifdef CONFIG_PCIE_EDR void pci_acpi_add_edr_notifier(struct pci_dev *pdev);