Thread (1 message) 1 message, 1 author, 2021-05-03

[PATCH AUTOSEL 5.11 027/115] media: cx23885: add more quirks for reset DMA on some AMD IOMMU

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STALE1989d

From: Sasha Levin <sashal@kernel.org>
Date: 2021-05-03 16:42:48
Also in: lkml, stable
Subsystem: media input infrastructure (v4l/dvb), the rest · Maintainers: Mauro Carvalho Chehab, Linus Torvalds

From: Brad Love <redacted>

[ Upstream commit 5f864cfbf59bfed2057bd214ce7fbf6ad420d54b ]

The folowing AMD IOMMU are affected by the RiSC engine stall, requiring a
reset to maintain continual operation. After being added to the
broken_dev_id list the systems are functional long term.

0x1481 is the PCI ID for the IOMMU found on Starship/Matisse

0x1419 is the PCI ID for the IOMMU found on 15h (Models 10h-1fh) family

0x5a23 is the PCI ID for the IOMMU found on RD890S/RD990

Signed-off-by: Brad Love <redacted>
Signed-off-by: Hans Verkuil <redacted>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/cx23885/cx23885-core.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
index 22f55a7840a6..d0ca260ecf70 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -2077,6 +2077,15 @@ static struct {
 	 * 0x1423 is the PCI ID for the IOMMU found on Kaveri
 	 */
 	{ PCI_VENDOR_ID_AMD, 0x1423 },
+	/* 0x1481 is the PCI ID for the IOMMU found on Starship/Matisse
+	 */
+	{ PCI_VENDOR_ID_AMD, 0x1481 },
+	/* 0x1419 is the PCI ID for the IOMMU found on 15h (Models 10h-1fh) family
+	 */
+	{ PCI_VENDOR_ID_AMD, 0x1419 },
+	/* 0x5a23 is the PCI ID for the IOMMU found on RD890S/RD990
+	 */
+	{ PCI_VENDOR_ID_ATI, 0x5a23 },
 };
 
 static bool cx23885_does_need_dma_reset(void)
-- 
2.30.2
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