From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56480 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751430AbdBJNka (ORCPT ); Fri, 10 Feb 2017 08:40:30 -0500 Subject: Patch "crypto: ccp - Fix DMA operations when IOMMU is enabled" has been added to the 4.9-stable tree To: gary.hook@amd.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au Cc: , From: Date: Fri, 10 Feb 2017 14:35:59 +0100 Message-ID: <148673375922389@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled crypto: ccp - Fix DMA operations when IOMMU is enabled to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: crypto-ccp-fix-dma-operations-when-iommu-is-enabled.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 500c0106e638e08c2c661c305ed57d6b67e10908 Mon Sep 17 00:00:00 2001 From: Gary R Hook Date: Fri, 27 Jan 2017 15:28:45 -0600 Subject: crypto: ccp - Fix DMA operations when IOMMU is enabled From: Gary R Hook commit 500c0106e638e08c2c661c305ed57d6b67e10908 upstream. An I/O page fault occurs when the IOMMU is enabled on a system that supports the v5 CCP. DMA operations use a Request ID value that does not match what is expected by the IOMMU, resulting in the I/O page fault. Setting the Request ID value to 0 corrects this issue. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/ccp/ccp-dev-v5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -955,7 +955,7 @@ static irqreturn_t ccp5_irq_handler(int static void ccp5_config(struct ccp_device *ccp) { /* Public side */ - iowrite32(0x00001249, ccp->io_regs + CMD5_REQID_CONFIG_OFFSET); + iowrite32(0x0, ccp->io_regs + CMD5_REQID_CONFIG_OFFSET); } static void ccp5other_config(struct ccp_device *ccp) Patches currently in stable-queue which might be from gary.hook@amd.com are queue-4.9/crypto-ccp-fix-double-add-when-creating-new-dma-command.patch queue-4.9/crypto-ccp-fix-dma-operations-when-iommu-is-enabled.patch