From patchwork Tue Aug 16 10:16:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heikki Krogerus X-Patchwork-Id: 598446 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1F4DC32773 for ; Tue, 16 Aug 2022 11:15:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233375AbiHPLPv (ORCPT ); Tue, 16 Aug 2022 07:15:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235406AbiHPLP1 (ORCPT ); Tue, 16 Aug 2022 07:15:27 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E03974E11; Tue, 16 Aug 2022 03:16:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660644992; x=1692180992; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=6zUPqg/E6WJ3Fq2O6W3oFh9h+ZOs8adLY8vipG0PDk0=; b=jyva4G3NI+lIsqimwh2EBMfSVs57p9C/NLr0alaoz39fAxsZuG59BEEI 76b9qlJcfkysP89FXVWyb3s4HJoSXL72pGff/bmh581gz4mJQa5t0Aik1 7pQdtExqNen1eyQ5Zvzsk4oSfoE6I/gqyIWeVtUIrGbj+lbDKOpxJs6wf hbL3YLyu94kfsxdynkUV+kx2AqN9XkpF6onCg1bYIa4VKk0tzBvdk77o9 1OEbV3NJIlUINe6c6Gk5E/PEpKxVM/bNH0J2WybdYXNMltI2YJ5XRb+O9 FwNsD26Wv2g7EHubpQSPpFIQ42FAJJXzkVKaI3/CS+yaVZz8H+f/LDBrF Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10440"; a="279141273" X-IronPort-AV: E=Sophos;i="5.93,240,1654585200"; d="scan'208";a="279141273" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2022 03:16:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,240,1654585200"; d="scan'208";a="749260771" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 16 Aug 2022 03:16:24 -0700 From: Heikki Krogerus To: "Rafael J. Wysocki" , Greg Kroah-Hartman Cc: Utkarsh Patel , rajmohan.mani@intel.com, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH 3/6] ACPI: resource: Add helper function acpi_dev_get_memory_resources() Date: Tue, 16 Aug 2022 13:16:26 +0300 Message-Id: <20220816101629.69054-4-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220816101629.69054-1-heikki.krogerus@linux.intel.com> References: <20220816101629.69054-1-heikki.krogerus@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Wrapper function that finds all memory type resources by using acpi_dev_get_resources(). It removes the need for the drivers to check the resource data type separately. Signed-off-by: Heikki Krogerus --- drivers/acpi/resource.c | 17 +++++++++++++++++ include/linux/acpi.h | 1 + 2 files changed, 18 insertions(+) diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index e644e90d18847..8032d50ca9441 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -721,6 +721,23 @@ int acpi_dev_get_dma_resources(struct acpi_device *adev, struct list_head *list) } EXPORT_SYMBOL_GPL(acpi_dev_get_dma_resources); +/** + * acpi_dev_get_memory_resources - Get current memory resources of a device. + * @adev: ACPI device node to get the resources for. + * @list: Head of the resultant list of resources (must be empty). + * + * This is a helper function that locates all memory type resources of @adev + * with acpi_dev_get_resources(). + * + * The number of resources in the output list is returned on success, an error + * code reflecting the error condition is returned otherwise. + */ +int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list) +{ + return acpi_dev_get_resources(adev, list, is_memory, NULL); +} +EXPORT_SYMBOL_GPL(acpi_dev_get_memory_resources); + /** * acpi_dev_filter_resource_type - Filter ACPI resource according to resource * types diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 6f64b2f3dc547..ed4aa395cc49b 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -506,6 +506,7 @@ int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, void *preproc_data); int acpi_dev_get_dma_resources(struct acpi_device *adev, struct list_head *list); +int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); int acpi_dev_filter_resource_type(struct acpi_resource *ares, unsigned long types);