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-rw-r--r--arch/x86/pci/fixup.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 30a5111ae5fd..527e69b12002 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -635,6 +635,22 @@ static void quirk_no_aersid(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
PCI_CLASS_BRIDGE_PCI, 8, quirk_no_aersid);
+static void quirk_intel_th_dnv(struct pci_dev *dev)
+{
+ struct resource *r = &dev->resource[4];
+
+ /*
+ * Denverton reports 2k of RTIT_BAR (intel_th resource 4), which
+ * appears to be 4 MB in reality.
+ */
+ if (r->end == r->start + 0x7ff) {
+ r->start = 0;
+ r->end = 0x3fffff;
+ r->flags |= IORESOURCE_UNSET;
+ }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x19e1, quirk_intel_th_dnv);
+
#ifdef CONFIG_PHYS_ADDR_T_64BIT
#define AMD_141b_MMIO_BASE(x) (0x80 + (x) * 0x8)