From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753674AbcBWOTT (ORCPT ); Tue, 23 Feb 2016 09:19:19 -0500 Received: from mail-bn1on0061.outbound.protection.outlook.com ([157.56.110.61]:31520 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753420AbcBWOOu (ORCPT ); Tue, 23 Feb 2016 09:14:50 -0500 Authentication-Results: 8bytes.org; dkim=none (message not signed) header.d=none;8bytes.org; dmarc=none action=none header.from=amd.com; From: Suravee Suthikulpanit To: , , , , CC: , , , , , "Suravee Suthikulpanit" Subject: [PATCH V5 09/10] iommu/amd: Introduce amd_iommu_get_num_iommus() Date: Tue, 23 Feb 2016 08:12:43 -0600 Message-ID: <1456236764-1569-10-git-send-email-Suravee.Suthikulpanit@amd.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1456236764-1569-1-git-send-email-Suravee.Suthikulpanit@amd.com> References: <1456236764-1569-1-git-send-email-Suravee.Suthikulpanit@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [124.121.8.20] X-ClientProxiedBy: HKNPR06CA0045.apcprd06.prod.outlook.com (10.141.16.35) To BLUPR12MB0436.namprd12.prod.outlook.com (25.162.92.141) X-MS-Office365-Filtering-Correlation-Id: 38ba2dd9-8561-447f-eda5-08d33c5bb054 X-Microsoft-Exchange-Diagnostics: 1;BLUPR12MB0436;2:QLr/ELAe5GX1kaj54VY2inGvpfekaienz4uRUESPYSlbd+J9DYu99WnDiJIQZuYeaZuDynQd2R0FV3nJ/k3u0BARUUnV16lHYWky7gC0eN6UjEzG4UdYgqDMQCX66SeshgDPt8OFzrXF5jmXgGRwZKE9lk413rIid7tDdSuXbRlcek9aBTWlZ5h+M4OAJHij;3:eRYKhpnFiwN3akalLAvPUrWzsUGAcsxHKp5xQL1HZgscv4n8Jm97H3XuHTKv89TRTHd90q0G6d491lJZKuoVhk4Bfz2otxvGf/AbciGdSbiAw/TI3S1fCtVuqfOH24hQ;25:EWQV7PSNhg0VQMjA8abh93JwJe29VAk+QglyQk3BN9iaVn34iJveMtTLk57WTSukpkPZqUQb27+K+NpmSoHbMTK+sTLorVEnr0maJqZ90QlULKMgn8QHqXh6EGqbWDEXyjkaKS/A47830z60pUvU4RStcYTlZ5ScpQ5Yq5qTj0yvpd3HiBhYaNYDgJ3FFJIdu8pHxEl1ahCEEXQeIF1PScixTQiK2GUOKET3UtAxcG3anIIai3A5KmpXD2rVwcfJ83vd66UC/4s7I4BQ7nw4yv4+mFKRpfM36uEKPBMkz6VdD7uJ4xHrc5OSOJJw0kx5TSjlzqikM0bLPuUNxo6byH/Cx76j/SOIrSafx/+fU/k= X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BLUPR12MB0436; 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This is intended for Perf AMD IOMMU driver. Signed-off-by: Suravee Suthikulpanit --- arch/x86/include/asm/perf/amd/iommu.h | 2 ++ drivers/iommu/amd_iommu_init.c | 7 ++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/perf/amd/iommu.h b/arch/x86/include/asm/perf/amd/iommu.h index 60ddfb6..b4c3fd2 100644 --- a/arch/x86/include/asm/perf/amd/iommu.h +++ b/arch/x86/include/asm/perf/amd/iommu.h @@ -25,6 +25,8 @@ #define PC_MAX_SPEC_CNTRS 16 /* amd_iommu_init.c external support functions */ +int amd_iommu_get_num_iommus(void); + bool amd_iommu_pc_supported(void); u8 amd_iommu_pc_get_max_banks(int idx); diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index b68a2d6..59fc4c6 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1030,7 +1030,7 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h) /* Add IOMMU to internal data structures */ list_add_tail(&iommu->list, &amd_iommu_list); - iommu->index = amd_iommus_present++; + iommu->index = amd_iommus_present++; if (unlikely(iommu->index >= MAX_IOMMUS)) { WARN(1, "AMD-Vi: System has more IOMMUs than supported by this driver\n"); @@ -2259,6 +2259,11 @@ static struct amd_iommu *get_amd_iommu(int idx) return iommu; } +int amd_iommu_get_num_iommus(void) +{ + return amd_iommus_present; +} + /**************************************************************************** * * IOMMU EFR Performance Counter support functionality. This code allows -- 1.9.1