From patchwork Fri May 15 21:23:13 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suravee Suthikulpanit X-Patchwork-Id: 6416651 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 100A3C0432 for ; Fri, 15 May 2015 21:28:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3012020585 for ; Fri, 15 May 2015 21:28:04 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 22C0320584 for ; Fri, 15 May 2015 21:28:03 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YtN6v-00021z-Hr; Fri, 15 May 2015 21:25:37 +0000 Received: from mail-by2on0145.outbound.protection.outlook.com ([207.46.100.145] helo=na01-by2-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YtN5f-0000Pl-Kh for linux-arm-kernel@lists.infradead.org; Fri, 15 May 2015 21:24:20 +0000 Received: from BLUPR02MB067.namprd02.prod.outlook.com (10.242.187.153) by BLUPR02MB196.namprd02.prod.outlook.com (10.242.189.154) with Microsoft SMTP Server (TLS) id 15.1.160.19; Fri, 15 May 2015 21:23:57 +0000 Received: from BY2PR02CA0114.namprd02.prod.outlook.com (25.163.44.168) by BLUPR02MB067.namprd02.prod.outlook.com (10.242.187.153) with Microsoft SMTP Server (TLS) id 15.1.166.22; Fri, 15 May 2015 21:23:55 +0000 Received: from BL2FFO11FD007.protection.gbl (2a01:111:f400:7c09::137) by BY2PR02CA0114.outlook.office365.com (2a01:111:e400:5261::40) with Microsoft SMTP Server (TLS) id 15.1.166.22 via Frontend Transport; Fri, 15 May 2015 21:23:55 +0000 Authentication-Results: spf=none (sender IP is 165.204.84.221) smtp.mailfrom=amd.com; arm.com; dkim=none (message not signed) header.d=none; Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) Received: from atltwp01.amd.com (165.204.84.221) by BL2FFO11FD007.mail.protection.outlook.com (10.173.161.3) with Microsoft SMTP Server id 15.1.160.8 via Frontend Transport; Fri, 15 May 2015 21:23:54 +0000 X-WSS-ID: 0NOEU3T-07-0N4-02 X-M-MSG: Received: from satlvexedge02.amd.com (satlvexedge02.amd.com [10.177.96.29]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by atltwp01.amd.com (Axway MailGate 5.3.1) with ESMTPS id 203CB12C0046; Fri, 15 May 2015 17:23:53 -0400 (EDT) Received: from SATLEXDAG04.amd.com (10.181.40.9) by SATLVEXEDGE02.amd.com (10.177.96.29) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 15 May 2015 16:24:00 -0500 Received: from ssuthiku-fedora-lt.amd.com (10.180.168.240) by satlexdag04.amd.com (10.181.40.9) with Microsoft SMTP Server id 14.3.195.1; Fri, 15 May 2015 17:23:52 -0400 From: Suravee Suthikulpanit To: , , , , , , , , Subject: [V4 PATCH 5/6] crypto: ccp - Unify coherency checking logic with device_dma_is_coherent() Date: Fri, 15 May 2015 16:23:13 -0500 Message-ID: <1431724994-21601-6-git-send-email-Suravee.Suthikulpanit@amd.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1431724994-21601-1-git-send-email-Suravee.Suthikulpanit@amd.com> References: <1431724994-21601-1-git-send-email-Suravee.Suthikulpanit@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-Microsoft-Exchange-Diagnostics: 1; BL2FFO11FD007; 1:jw9Y6dukMFIHGViNZ8uMGA2pFzSEEXKEhAFXEnR9F0wvzwC2TXUG3gQCDxIfRlc5+9WYBumihBLjBnbi9FlPesH5BE76B+Eq3LR4UHzmM0caemNmdWslOBD3/pPB6dwWTEbxzc1Q+47ZKlKUKtZDQ8w6YNDQWJCZIgJ1CG0lsPxgCf+XpxM142hkfc3s475ZayeA9XZxPBvci+7pjmlR879n52/QvV9FdVwXJlffqN1ZZo1jz+aDyVCCcynNG+reSDH/XIRvkhY0pei3ehpOyPD9iubE0VE8iWdU820ULyyStf9VWMDKXfrBR4cC/7dy X-Forefront-Antispam-Report: CIP:165.204.84.221; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(428002)(189002)(199003)(2201001)(86362001)(106466001)(53416004)(50466002)(87936001)(46102003)(229853001)(48376002)(101416001)(189998001)(19580405001)(77096005)(5001770100001)(47776003)(2950100001)(19580395003)(50226001)(36756003)(105586002)(92566002)(77156002)(62966003)(76176999)(50986999); DIR:OUT; SFP:1102; SCL:1; SRVR:BLUPR02MB067; H:atltwp01.amd.com; FPR:; SPF:None; MLV:sfv; MX:1; A:1; LANG:en; X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:; SRVR:BLUPR02MB067; UriScan:; BCL:0; PCL:0; RULEID:; SRVR:BLUPR02MB196; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004)(5005006)(3002001); SRVR:BLUPR02MB067; BCL:0; PCL:0; RULEID:; SRVR:BLUPR02MB067; X-Forefront-PRVS: 0577AD41D6 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 May 2015 21:23:54.3751 (UTC) X-MS-Exchange-CrossTenant-Id: fde4dada-be84-483f-92cc-e026cbee8e96 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=fde4dada-be84-483f-92cc-e026cbee8e96; Ip=[165.204.84.221]; Helo=[atltwp01.amd.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR02MB067 X-OriginatorOrg: amd.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150515_142419_762300_B5663A87 X-CRM114-Status: GOOD ( 11.73 ) X-Spam-Score: -0.2 (/) Cc: al.stone@linaro.org, linaro-acpi@lists.linaro.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, leo.duran@amd.com, hanjun.guo@linaro.org, Suravee Suthikulpanit , msalter@redhat.com, grant.likely@linaro.org, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently, the driver has separate logic to determine device coherency for DT vs ACPI. This patch simplifies the code with a call to device_dma_is_coherent(). Signed-off-by: Tom Lendacky Signed-off-by: Suravee Suthikulpanit CC: Herbert Xu --- drivers/crypto/ccp/ccp-platform.c | 60 +-------------------------------------- 1 file changed, 1 insertion(+), 59 deletions(-) diff --git a/drivers/crypto/ccp/ccp-platform.c b/drivers/crypto/ccp/ccp-platform.c index b1c20b2..e446781 100644 --- a/drivers/crypto/ccp/ccp-platform.c +++ b/drivers/crypto/ccp/ccp-platform.c @@ -90,58 +90,6 @@ static struct resource *ccp_find_mmio_area(struct ccp_device *ccp) return NULL; } -#ifdef CONFIG_ACPI -static int ccp_acpi_support(struct ccp_device *ccp) -{ - struct ccp_platform *ccp_platform = ccp->dev_specific; - struct acpi_device *adev = ACPI_COMPANION(ccp->dev); - acpi_handle handle; - acpi_status status; - unsigned long long data; - int cca; - - /* Retrieve the device cache coherency value */ - handle = adev->handle; - do { - status = acpi_evaluate_integer(handle, "_CCA", NULL, &data); - if (!ACPI_FAILURE(status)) { - cca = data; - break; - } - } while (!ACPI_FAILURE(status)); - - if (ACPI_FAILURE(status)) { - dev_err(ccp->dev, "error obtaining acpi coherency value\n"); - return -EINVAL; - } - - ccp_platform->coherent = !!cca; - - return 0; -} -#else /* CONFIG_ACPI */ -static int ccp_acpi_support(struct ccp_device *ccp) -{ - return -EINVAL; -} -#endif - -#ifdef CONFIG_OF -static int ccp_of_support(struct ccp_device *ccp) -{ - struct ccp_platform *ccp_platform = ccp->dev_specific; - - ccp_platform->coherent = of_dma_is_coherent(ccp->dev->of_node); - - return 0; -} -#else -static int ccp_of_support(struct ccp_device *ccp) -{ - return -EINVAL; -} -#endif - static int ccp_platform_probe(struct platform_device *pdev) { struct ccp_device *ccp; @@ -182,13 +130,7 @@ static int ccp_platform_probe(struct platform_device *pdev) goto e_err; } - if (ccp_platform->use_acpi) - ret = ccp_acpi_support(ccp); - else - ret = ccp_of_support(ccp); - if (ret) - goto e_err; - + ccp_platform->coherent = device_dma_is_coherent(ccp->dev); if (ccp_platform->coherent) ccp->axcache = CACHE_WB_NO_ALLOC; else