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* [PATCH] PCI: Add Intel 7th & 8th Gen mobile to ACS quirks
@ 2018-04-25 20:27 Alex Williamson
  2018-04-27 18:09 ` Bjorn Helgaas
  0 siblings, 1 reply; 3+ messages in thread
From: Alex Williamson @ 2018-04-25 20:27 UTC (permalink / raw)
  To: bhelgaas; +Cc: linux-pci, linux-kernel

The specification update indicates these have the same errate for
implementing non-standard ACS capabilities.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
 drivers/pci/quirks.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2990ad1e7c99..6d0dee40dbe5 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4230,11 +4230,24 @@ static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
  * 0xa290-0xa29f PCI Express Root port #{0-16}
  * 0xa2e7-0xa2ee PCI Express Root port #{17-24}
  *
+ * Mobile chipsets are also affected, 7th & 8th Generation
+ * Specification update confirms ACS errata 22, status no fix: (7th Generation
+ * Intel Processor Family I/O for U/Y Platforms and 8th Generation Intel
+ * Processor Family I/O for U Quad Core Platforms Specification Update,
+ * August 2017, Revision 002, Document#: 334660-002)[6]
+ * Device IDs from I/O datasheet: (7th Generation Intel Processor Family I/O
+ * for U/Y Platforms and 8th Generation Intel ® Processor Family I/O for U
+ * Quad Core Platforms, Vol 1 of 2, August 2017, Document#: 334658-003)[7]
+ *
+ * 0x9d10-0x9d1b PCI Express Root port #{1-12}
+ *
  * [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
  * [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
  * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
  * [4] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-spec-update.html
  * [5] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-datasheet-vol-1.html
+ * [6] https://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-u-y-processor-lines-i-o-spec-update.html
+ * [7] https://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-u-y-processor-lines-i-o-datasheet-vol-1.html
  */
 static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
 {
@@ -4244,6 +4257,7 @@ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
 	switch (dev->device) {
 	case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
 	case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
+	case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */
 		return true;
 	}
 

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2018-04-27 19:06 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2018-04-25 20:27 [PATCH] PCI: Add Intel 7th & 8th Gen mobile to ACS quirks Alex Williamson
2018-04-27 18:09 ` Bjorn Helgaas
2018-04-27 19:06   ` Alex Williamson

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