diff options
Diffstat (limited to 'PCI-Add-Intel-7th-8th-Gen-mobile-to-ACS-quirks.patch')
| -rw-r--r-- | PCI-Add-Intel-7th-8th-Gen-mobile-to-ACS-quirks.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/PCI-Add-Intel-7th-8th-Gen-mobile-to-ACS-quirks.patch b/PCI-Add-Intel-7th-8th-Gen-mobile-to-ACS-quirks.patch new file mode 100644 index 000000000000..5125ca6013cb --- /dev/null +++ b/PCI-Add-Intel-7th-8th-Gen-mobile-to-ACS-quirks.patch @@ -0,0 +1,57 @@ +From patchwork Wed Apr 25 20:27:37 2018 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit +Subject: PCI: Add Intel 7th & 8th Gen mobile to ACS quirks +From: Alex Williamson <alex.williamson@redhat.com> +X-Patchwork-Id: 10364243 +Message-Id: <152468799766.12449.11245066753252100117.stgit@w520.home> +To: bhelgaas@google.com +Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org +Date: Wed, 25 Apr 2018 14:27:37 -0600 + +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; + } + |