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[23.128.96.18]) by mx.google.com with ESMTP id bs24si13280493edb.519.2020.12.22.18.57.00; Tue, 22 Dec 2020 18:57:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=jQ5pJNx+; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729133AbgLWCUz (ORCPT + 99 others); Tue, 22 Dec 2020 21:20:55 -0500 Received: from mail.kernel.org ([198.145.29.99]:46410 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728906AbgLWCUP (ORCPT ); Tue, 22 Dec 2020 21:20:15 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5194423357; Wed, 23 Dec 2020 02:19:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1608690000; bh=4cFHR5YE9cqHcWM2vuonEFf7LB+PRgE6dNlV76YCjsI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jQ5pJNx+Hx4LxSja5cXMxRzWIDlQHajHSolMri4yZzzEBw/3XGefDVqvDEneug7ku 1G+X3Fzjllk75XNFzRaRCGgrSiqrs+cBpnW3BRdvMb9dSi3HMQ699hHBCEzKarYTBX GBQRVhD0PN9TqdP8eRSC/9N2cZOyeCFCGAjBFW2GKiBP4vlSmu7MN2E47uqMqLgBaq RXqHEHO6m2OQ8+Eevrz7VonIIGZaYOD9v6NTpu9++yIT79HZMIb4A7prpDLfQPNTQg y0tI7ywLuWViX40Lh+YjoI7w8MlPp3jD+U+FxF6s3OFfc48i0En3jrLqOpwPJQp6KK ndnUo7XFZGLsg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Daniel Lee Kruse , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin , linux-media@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 082/130] media: cx23885: add more quirks for reset DMA on some AMD IOMMU Date: Tue, 22 Dec 2020 21:17:25 -0500 Message-Id: <20201223021813.2791612-82-sashal@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201223021813.2791612-1-sashal@kernel.org> References: <20201223021813.2791612-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Daniel Lee Kruse [ Upstream commit dbf0b3a7b719eb3f72cb53c2ce7d34a012a9c261 ] On AMD Family 15h (Models 30h-3fh), I/O Memory Management Unit RiSC engine sometimes stalls, requiring a reset. As result, MythTV and w-scan won't scan channels on the AMD Kaveri APU with the Hauppauge QuadHD TV tuner card. For the solution I added the Input/Output Memory Management Unit's PCI Identity of 0x1423 to the broken_dev_id[] array, which is used by a quirks logic meant to fix similar problems with other AMD chipsets. Signed-off-by: Daniel Lee Kruse Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/pci/cx23885/cx23885-core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c index 7e0b0b7cc2a35..ead0acb7807c8 100644 --- a/drivers/media/pci/cx23885/cx23885-core.c +++ b/drivers/media/pci/cx23885/cx23885-core.c @@ -2074,6 +2074,10 @@ static struct { * 0x1451 is PCI ID for the IOMMU found on Ryzen */ { PCI_VENDOR_ID_AMD, 0x1451 }, + /* According to sudo lspci -nn, + * 0x1423 is the PCI ID for the IOMMU found on Kaveri + */ + { PCI_VENDOR_ID_AMD, 0x1423 }, }; static bool cx23885_does_need_dma_reset(void) -- 2.27.0