From f154a718e6cc0d834f5ac4dc4c3b174e65f3659e Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 27 Apr 2018 13:06:30 -0500
Subject: [PATCH] PCI: Add ACS quirk for Intel 300 series
Git-commit: f154a718e6cc0d834f5ac4dc4c3b174e65f3659e
Patch-mainline: v4.18-rc1
References: bsc#1051510
Intel 300 series chipset still has the same ACS issue as the previous
generations so extend the ACS quirk to cover it as well.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pci/quirks.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 6d0dee40dbe5..785a29ba4f51 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4241,6 +4241,11 @@ static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
*
* 0x9d10-0x9d1b PCI Express Root port #{1-12}
*
+ * The 300 series chipset suffers from the same bug so include those root
+ * ports here as well.
+ *
+ * 0xa32c-0xa343 PCI Express Root port #{0-24}
+ *
* [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
@@ -4258,6 +4263,7 @@ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */
+ case 0xa32c ... 0xa343: /* 300 series */
return true;
}
--
2.18.0