From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:38994 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752675AbdHDW0y (ORCPT ); Fri, 4 Aug 2017 18:26:54 -0400 Subject: Patch "dmaengine: ioatdma: workaround SKX ioatdma version" has been added to the 4.9-stable tree To: dave.jiang@intel.com, alexander.levin@verizon.com, gregkh@linuxfoundation.org, vinod.koul@intel.com Cc: , From: Date: Fri, 04 Aug 2017 15:26:25 -0700 Message-ID: <15018855853739@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 dmaengine: ioatdma: workaround SKX ioatdma version 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: dmaengine-ioatdma-workaround-skx-ioatdma-version.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 foo@baz Fri Aug 4 15:15:01 PDT 2017 From: Dave Jiang Date: Tue, 13 Dec 2016 11:15:27 -0700 Subject: dmaengine: ioatdma: workaround SKX ioatdma version From: Dave Jiang [ Upstream commit 34a31f0af84158955a9747fb5c6712da5bbb5331 ] The Skylake ioatdma is technically CBDMA 3.2+ and contains the same hardware bits with some additional 3.3 features, but it's not really 3.3 where the driver is concerned. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/dma/ioat/init.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/dma/ioat/init.c +++ b/drivers/dma/ioat/init.c @@ -1357,6 +1357,8 @@ static int ioat_pci_probe(struct pci_dev device->version = readb(device->reg_base + IOAT_VER_OFFSET); if (device->version >= IOAT_VER_3_0) { + if (is_skx_ioat(pdev)) + device->version = IOAT_VER_3_2; err = ioat3_dma_probe(device, ioat_dca_enabled); if (device->version >= IOAT_VER_3_3) Patches currently in stable-queue which might be from dave.jiang@intel.com are queue-4.9/dmaengine-ioatdma-add-skylake-pci-dev-id.patch queue-4.9/dmaengine-ioatdma-workaround-skx-ioatdma-version.patch