From patchwork Tue Nov 16 09:06:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yicong Yang X-Patchwork-Id: 12621793 X-Patchwork-Delegate: bhelgaas@google.com 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEC1BC433EF for ; Tue, 16 Nov 2021 09:09:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF9BD60E78 for ; Tue, 16 Nov 2021 09:09:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232790AbhKPJMK (ORCPT ); Tue, 16 Nov 2021 04:12:10 -0500 Received: from szxga02-in.huawei.com ([45.249.212.188]:15825 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232734AbhKPJMJ (ORCPT ); Tue, 16 Nov 2021 04:12:09 -0500 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HtgGT3hNbz918F; Tue, 16 Nov 2021 17:08:49 +0800 (CST) Received: from dggema772-chm.china.huawei.com (10.1.198.214) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Tue, 16 Nov 2021 17:09:09 +0800 Received: from localhost.localdomain (10.67.165.2) by dggema772-chm.china.huawei.com (10.1.198.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.20; Tue, 16 Nov 2021 17:09:09 +0800 From: Yicong Yang To: , , , , , , , , , , , , , , , , , , , , CC: , , , , , Subject: [PATCH v2 1/6] iommu: Export iommu_{get,put}_resv_regions() Date: Tue, 16 Nov 2021 17:06:20 +0800 Message-ID: <20211116090625.53702-2-yangyicong@hisilicon.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20211116090625.53702-1-yangyicong@hisilicon.com> References: <20211116090625.53702-1-yangyicong@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.2] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggema772-chm.china.huawei.com (10.1.198.214) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Export iommu_{get,put}_resv_regions() to the modules so that the driver can retrieve and use the reserved regions of the device. Signed-off-by: Yicong Yang Acked-by: Mathieu Poirier --- drivers/iommu/iommu.c | 2 ++ include/linux/iommu.h | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index dd7863e453a5..e96711eee965 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2792,6 +2792,7 @@ void iommu_get_resv_regions(struct device *dev, struct list_head *list) if (ops && ops->get_resv_regions) ops->get_resv_regions(dev, list); } +EXPORT_SYMBOL_GPL(iommu_get_resv_regions); void iommu_put_resv_regions(struct device *dev, struct list_head *list) { @@ -2800,6 +2801,7 @@ void iommu_put_resv_regions(struct device *dev, struct list_head *list) if (ops && ops->put_resv_regions) ops->put_resv_regions(dev, list); } +EXPORT_SYMBOL_GPL(iommu_put_resv_regions); /** * generic_iommu_put_resv_regions - Reserved region driver helper diff --git a/include/linux/iommu.h b/include/linux/iommu.h index d2f3435e7d17..1b7b0f370e28 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -450,8 +450,8 @@ extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t io extern void iommu_set_fault_handler(struct iommu_domain *domain, iommu_fault_handler_t handler, void *token); -extern void iommu_get_resv_regions(struct device *dev, struct list_head *list); -extern void iommu_put_resv_regions(struct device *dev, struct list_head *list); +void iommu_get_resv_regions(struct device *dev, struct list_head *list); +void iommu_put_resv_regions(struct device *dev, struct list_head *list); extern void generic_iommu_put_resv_regions(struct device *dev, struct list_head *list); extern void iommu_set_default_passthrough(bool cmd_line);