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| author | Alex Williamson <alex.williamson@redhat.com> | 2018-04-25 14:27:37 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 11:23:10 +0200 |
| commit | 5e1deade6064d088ad4852f9a2299eeeefdfe3d2 (patch) | |
| tree | fce01f0ce1b6b7a5853a1a3cc8dac54e3f76ec94 | |
| parent | 83f9549d650b477b46fc070461f82ef536eae702 (diff) | |
| download | linux-rt-5e1deade6064d088ad4852f9a2299eeeefdfe3d2.tar.gz | |
PCI: Add ACS quirk for Intel 7th & 8th Gen mobile
commit e8440f4bfedc623bee40c84797ac78d9303d0db6 upstream.
The specification update indicates these have the same errata for
implementing non-standard ACS capabilities.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/pci/quirks.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index b55f9179c94e..c7a695c2303a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4225,11 +4225,24 @@ 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) { @@ -4239,6 +4252,7 @@ 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; } |