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Merge branch 'pci/enumeration'

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- Probe bridge window attributes only once at enumeration-time to fix
    device accesses during rescan (Bjorn Helgaas)

  - Return BAR size (not "size -1 ") from pci_size() to simplify code (Du
    Changbin)

  - Use config header type (not class code) identify bridges more reliably
    (Honghui Zhang)

  - Work around Intel Denverton incorrect Trace Hub BAR size reporting
    (Alexander Shishkin)

* pci/enumeration:
  x86/PCI: Fixup RTIT_BAR of Intel Denverton Trace Hub
  PCI: Rely on config space header type, not class code
  PCI: Make pci_size() return real BAR size
  PCI: Probe bridge window attributes once at enumeration-time
This commit is contained in:
Bjorn Helgaas
2019-03-06 15:30:11 -06:00
parent 1bd2e9ee5c 2e095ce7b6
commit 5d130e3dd8
5 changed files with 89 additions and 59 deletions
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3
drivers/pci/pci.c
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@@ -6049,8 +6049,7 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev)
* to enable the kernel to reassign new resource
* window later on.
*/
if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
r = &dev->resource[i];
if (!(r->flags & IORESOURCE_MEM))